阅读说明：本技术 一种可更换钳牙免调开口尺寸专用油管钳 (Removable tong teeth exempts from to transfer special oil pipe pincers of opening size ) 是由 王强 周世宏 卢洪亮 赵立娟 罗宝田 于 2020-06-08 设计创作，主要内容包括：一种可更换钳牙免调开口尺寸专用油管钳。主要解决现有的油管钳使用时开口尺寸需要调节、钳牙易磨损的问题。其特征在于：所述钳头(5)前端上部通过牙柄轴销(12)连接有钳头牙柄(6),所述钳头(5)前端下部与钳头牙柄(6)前端分别连接有可转动的钳牙,所述钳头牙柄(6)后端面上设有锁止牙(14),所述钳头(5)上连接有与锁止牙(14)相配合的防脱牙块(9)。该可更换钳牙免调开口尺寸专用油管钳使用时不需调节开口大小,并且更换钳牙方便,避免因钳牙磨损而造成的油管钳报废。(A special oil pipe tongs with replaceable tongs teeth and without adjusting opening size. The problems that the opening size needs to be adjusted and the tong teeth are easy to wear when the existing oil pipe tongs are used are mainly solved. The method is characterized in that: the improved pliers are characterized in that the upper portion of the front end of the pliers head (5) is connected with a pliers head tooth handle (6) through a tooth handle shaft pin (12), the lower portion of the front end of the pliers head (5) and the front end of the pliers head tooth handle (6) are respectively connected with rotatable pliers teeth, locking teeth (14) are arranged on the rear end face of the pliers head tooth handle (6), and anti-falling tooth blocks (9) matched with the locking teeth (14) are connected onto the pliers head (5). The special oil pipe tongs with replaceable tongs teeth and without adjusting the opening size are used without adjusting the opening size, the tongs teeth are convenient to replace, and the oil pipe tongs scrapping caused by the abrasion of the tongs teeth is avoided.)

1. The utility model provides a removable tong teeth exempt from to transfer special oil pipe pincers of opening size, includes breakout tongs handle (1), breakout tongs handle (1) front end is fixed with binding clip (5), its characterized in that: the improved pliers are characterized in that the upper portion of the front end of the pliers head (5) is connected with a pliers head tooth handle (6) through a tooth handle shaft pin (12), the lower portion of the front end of the pliers head (5) and the front end of the pliers head tooth handle (6) are respectively connected with rotatable pliers teeth, locking teeth (14) are arranged on the rear end face of the pliers head tooth handle (6), and anti-falling tooth blocks (9) matched with the locking teeth (14) are connected onto the pliers head (5).

2. The removable tong teeth exempt from to transfer special oil pipe pincers of opening size of claim 1, characterized by: the utility model discloses a pincers, including pincers tooth, the tooth is passed through toothholder pivot (13) and is linked to each other with pincers head tooth handle (6) and binding clip (5), and the pincers tooth includes pincers toothholder (7) and pincers tooth piece (8), pincers toothholder (7) are the arc, and curved upper and lower both ends are equipped with the pothook respectively, and inlays on the arc inner wall and have strong magnetic sheet (18), pincers tooth piece (8) are adsorbed in pincers toothholder (7) pothook by strong magnetic sheet (18).

3. The removable tong teeth exempt from to transfer special oil pipe pincers of opening size of claim 2, characterized by: the novel anti-disengaging pliers are characterized in that the top of the pliers head (5) is connected with an unlocking handle (15) through a pin (16), the front end of the unlocking handle (15) is connected with an anti-disengaging tooth block (9), the front end of the anti-disengaging tooth block (9) is matched with a locking tooth (14), a return spring (11) is arranged outside the anti-disengaging tooth block (9), and the return spring (11) is connected with the pliers head (5) through a spring seat.

4. The removable tong teeth exempt from to transfer special oil pipe pincers of opening size of claim 3, characterized by: the pipe wrench is characterized in that a movable telescopic stress application rod (2) is arranged inside the pipe wrench handle (1), the end of the pipe wrench handle (1) is connected with a telescopic rod release ring (4), and anti-skidding hemp threads (3) are arranged on the outer surfaces of the pipe wrench handle (1) and the telescopic stress application rod (2).

Technical Field

The invention relates to the field of oil fields, in particular to a pair of special oil pipe tongs with replaceable tongs teeth and without adjusting the opening size.

Background

The oil pipe pincers model that present oil field operation trade used is mostly 900mm and 1200mm, and the opening size needs to be adjusted during the use, and this kind of breakout tongs is at the tripping operation on the oil pipe that plays frequently for a long time, very easily causes breakout tongs jaw and regulating wheel wearing and tearing and damage to lead to the breakout tongs to scrap frequently in the short time, cause a large amount of wastes, brought not little economic loss for the enterprise.

Disclosure of Invention

In order to overcome the defects that the opening size needs to be adjusted and the tong teeth are easy to wear when the existing oil pipe tongs are used, the invention provides the special oil pipe tongs with the replaceable tong teeth and the non-adjustable opening size.

The technical scheme of the invention is as follows: the special oil pipe tongs with replaceable tong teeth and without opening size comprise a pipe tongs handle, wherein a tong head is fixed to the front end of the pipe tongs handle, the upper part of the front end of the tong head is connected with a tong head handle through a handle shaft pin, the lower part of the front end of the tong head and the front end of the tong head handle are respectively connected with rotatable tong teeth, locking teeth are arranged on the rear end face of the tong head handle, and anti-falling tooth blocks matched with the locking teeth are connected onto the tong head.

The clamp teeth are connected with the clamp head tooth handle and the clamp head through the tooth holder shaft pin and comprise a clamp tooth holder and clamp tooth sheets, the clamp tooth holder is arc-shaped, the upper end and the lower end of the arc-shaped clamp tooth holder are respectively provided with a clamping hook, a strong magnetic sheet is embedded on the inner wall of the arc-shaped clamp tooth holder, and the clamp tooth sheets are adsorbed in the clamp tooth holder clamping hooks by the strong magnetic sheets.

The novel anti-disengaging pliers are characterized in that an unlocking handle is connected to the top of the pliers head through a pin, an anti-disengaging tooth block is connected to the front end of the unlocking handle, the front end of the anti-disengaging tooth block is matched with locking teeth, a return spring is arranged outside the anti-disengaging tooth block, and the return spring is connected to the pliers head through a spring seat.

The pipe tongs handle is inside to be equipped with mobilizable flexible atress pole, and pipe tongs handle tip is connected with the telescopic link and puts the ring of taking off, and pipe tongs handle and flexible atress pole surface all are equipped with anti-skidding twist grain.

The invention has the following beneficial effects: by adopting the scheme, the rotatable tong head tooth handles are connected to the tong head, the tong teeth are connected to the tong head and the tong head tooth handles, the opening size of the oil pipe tong can be adjusted by rotating the tong head tooth handles and the tong teeth, and the tong head tooth handles can be locked by the anti-falling tooth blocks, so that the oil pipe tong is prevented from falling off during operation; the tong teeth sheets are adsorbed on the tong teeth seats through the strong magnetic sheets, and only the tong teeth sheets are replaced after the tong teeth sheets are worn, so that the operation is convenient, the scrapping of the oil pipe tongs caused by the wear of the tong teeth is avoided, and the waste is reduced.

Drawings

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

FIG. 2 is an exploded view of the binding clip;

FIG. 3 is a schematic view of a jaw;

FIG. 4 is a right side view of the jaw;

fig. 5 is an exploded view of the jaw.

In the figure, 1-a pipe wrench handle, 2-a telescopic stress application rod, 3-an anti-slip hemp thread, 4-a telescopic rod anti-slip ring, 5-a wrench head, 6-a wrench head handle, 7-a wrench tooth holder, 8-a wrench tooth sheet, 9-an anti-slip tooth block, 10-an anti-slip tooth block sliding barrel, 11-a return spring, 12-a handle shaft pin, 13-a tooth holder shaft pin, 14-a locking tooth, 15-an unlocking handle, 16-a pin, 17-a strong magnetic sheet groove and 18-a strong magnetic sheet.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 to 5, the special oil pipe tongs with replaceable tongs teeth and without opening size adjustment comprises a pipe tong handle 1, wherein the pipe tong handle 1 is a hollow pipe, a movable telescopic stress applying rod 2 is arranged in the pipe tong handle 1, a telescopic rod releasing ring 4 is connected to the end part of the pipe tong handle 1, and the telescopic rod releasing ring 4 is screwed up to fix the telescopic stress applying rod 2 at a certain position, so that the handle is extended. The outer surfaces of the right ends of the pipe wrench handle 1 and the telescopic stress application rod 2 are provided with anti-skidding twist grains 3, and the anti-skidding twist grains 3 can increase friction force during operation and play a role in skid resistance during stress application.

The front end of the pipe wrench handle 1 is connected with a wrench head 5, the front end of the wrench head 5 is T-shaped, one end of the wrench head is connected with a wrench tooth, and the other end of the wrench head is connected with a wrench head tooth handle 6 through a tooth handle shaft pin 12. The front end of the tong head tooth handle 6 is connected with the other half of the tong teeth, and the tong teeth are the same as the tong teeth on the tong head 5 in structure and opposite in direction. The teeth are connected with the jaw handle 6 and the jaw 5 through the tooth holder shaft pin 13, and the teeth can rotate around the tooth holder shaft pin 13. The pincers tooth includes pincers tooth holder 7 and pincers tooth piece 8, pincers tooth holder 7 is the arc, and curved upper and lower both ends are equipped with the pothook respectively, and opens on the arc inner wall has the strong magnetic sheet recess 17 of a plurality of, and it has strong magnetic sheet 18 to inlay in the recess, it has the card tooth to process on the 8 internal surfaces of pincers tooth piece, and pincers tooth piece 8 adsorbs in pincers tooth holder 7 pothook by strong magnetic sheet 18, can avoid like this to twist pincers tooth piece 8 and drop when oil pipe to when needing to change pincers tooth piece, push away strong magnetic sheet 18 along the direction power that is on a parallel with the pothook, can take off it.

The forceps head tooth handle 6 can rotate along the tooth handle shaft pin 12, the rear end face of the forceps head tooth handle 6 is an arc face, locking teeth 14 are arranged on the arc face, and the forceps head 5 is connected with an anti-falling tooth block 9 matched with the locking teeth 14. A spring seat and a pin 16 are respectively fixed at the top of the tong head 5, an unlocking handle 15 is connected to the pin 16, a return spring 11 is arranged in the spring seat, an anti-falling tooth block 9 is connected to the front end of the unlocking handle 15, the anti-falling tooth block 9 penetrates through the return spring 11 and then the front end of the anti-falling tooth block is matched with a locking tooth 14, and under the action of the return spring 11, the anti-falling tooth block 9 extends forwards and is clamped with the locking tooth 14; the anti-falling tooth block 9 can be driven to move backwards by pressing the unlocking handle 15, and is separated from the locking teeth 14, so that the jaw head tooth handle 6 is unlocked.

The working process of the oil pipe tongs comprises the following steps: when an oil pipe is buckled, the upper part of the tooth handle 6 of the tong head is held by the left hand, the handle 1 of the pipe tong is held by the thumb of the right hand, and the other four fingers hold the unlocking handle 15 to unlock the anti-falling tooth block 9; after the opening of the pipe wrench is adjusted to a required size, the tong teeth are clamped on the outer wall of the oil pipe, the four fingers of the right hand are released, and the anti-falling tooth block 3 is clamped on the locking teeth 14 under the elastic force of the return spring 11; the right hand holds the pipe wrench handle 1, the force is exerted to rotate clockwise along the oil pipe, when the acting force is exerted on the pipe wrench handle 1, the tong head tooth handles 6 generate a radial clamping force along the tooth handle shaft pins 12, so that the upper tong tooth sheets 8 and the lower tong tooth sheets bite the outer wall of the oil pipe tightly, and the purpose of rotating the oil pipe to be buckled is achieved. The larger the force applied to the pipe wrench handle 1 is, the larger the force for the wrench tooth sheets 8 to bite the outer wall of the oil pipe is, after the pipe wrench is buckled, the upper part of the wrench head tooth handle 6 is held by the left hand, the pipe wrench handle 1 is held by the thumb of the right hand, and meanwhile, the unlocking handle 9 is forcibly held by the rest four fingers to unlock, so that the pipe wrench is separated from the oil pipe, and the working process of buckling the oil pipe is completed. In the process of force application, the telescopic force applying rod 2 can also extend out of the pipe wrench handle 1, the telescopic force applying rod 2 is held by hand for operation, the force arm can be prolonged, and the operation is more labor-saving. The oil pipe tongs are special for disassembling an oil pipe, the tong head tooth handles 6 can be loosened by pressing the unlocking handle 15, and the rotation of the two tong teeth is combined, so that the opening size can be automatically adjusted.