Threaded oil casing limiting device
The clamping threaded pipe and limiting tie rod structure of the threaded oil casing limiting device solve the corrosion problem at the oil casing connection, achieve stable connection and sealing, and enhance the reliability of the oil pipe.
Patent Information
- Application Number
- CN202423289309.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing threaded oil casings are susceptible to corrosion from moisture and oil at the connection points, leading to loose connections and a lack of limiting structures, which affects the stability of use.
A threaded oil casing limiting device was designed, including a clamped threaded pipe, a clamping groove, a sealing ring, a first threaded clamp, and a second threaded clamp. By rotating the threaded clamp, the clamped threaded pipe retracts to clamp the oil pipe. Combined with the limiting pull rod and the locking block structure, a stable connection and limiting of the oil pipe is achieved.
It effectively prevents corrosion at the oil pipe connection, enhances connection stability, avoids loosening and breakage caused by corrosion, and improves the tensile strength and sealing performance of the oil pipe connection.
Smart Images
Figure CN223594124U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to thread oil casing technical field, concretely is a kind of thread oil casing limiting device. BACKGROUND
[0002] Thread oil casing is a kind of pipe material for oil well and gas well in petroleum industry, it is mainly composed of pipe body and threaded part at both ends, pipe body part is used to transport petroleum or natural gas, and threaded part is the key structure to realize the connection between tubing or casing, to build complete downhole piping system.
[0003] The above-mentioned device does not have the structure of clamping, limiting and sealing the threaded connection head of oil casing when in use, so that the threaded oil casing is connected by using tubing coupling, the threaded joint and tubing connection are easily affected by water vapor and oil, which causes serious corrosion and affects subsequent use, and if the connection between the connection head and tubing is loosened due to corrosion, the tubing and the connection head are easily disconnected due to internal pressure and lack of limiting, based on the existing technical deficiencies, the utility model designs a threaded oil casing limiting device. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of the prior art, the utility model provides a threaded oil casing limiting device, which has the advantages of clamping, limiting and sealing the threaded connection head of oil casing.
[0005] The utility model provides the following technical scheme: a threaded oil casing limiting device, first tubing is connected with tubing coupling at one end, the other end of tubing coupling is connected with second tubing, limiting mechanism is arranged at both ends of tubing coupling to clamp and limit first tubing and second tubing, hinged block is fixedly connected to the side wall of limiting mechanism,
[0006] Limiting mechanism, the limiting mechanism includes clamping threaded pipe, clamping groove, sealing ring, first threaded hoop, second threaded hoop and knob, the both ends of tubing coupling are fixedly connected with clamping threaded pipe, the side wall of clamping threaded pipe is provided with clamping groove, the inner wall of two clamping threaded pipes is fixedly connected with sealing ring, the left end clamping threaded pipe is threaded on the first threaded hoop, the right end clamping threaded pipe is threaded on the second threaded hoop, the knob is fixedly connected to the outside of first threaded hoop and second threaded hoop.
[0007] As a preferred technical scheme of the utility model, the inside of the hinged block is rotatably connected with a limiting pull rod, the side wall of the second threaded hoop is fixedly connected with a clamping block, the front end of the limiting pull rod is provided with a gasket, and the front end of the limiting pull rod is provided with an adjusting nut.
[0008] As a preferred technical scheme of the utility model, the sealing ring is sleeved on the outer surface of the first oil pipe.
[0009] As a preferred technical scheme of the utility model, the first threaded collar is sleeved on the first oil pipe, and the second threaded collar is sleeved on the second oil pipe.
[0010] As a preferred technical scheme of the utility model, the clamp threaded pipe is respectively arranged on the outer surface of the first oil pipe and the second oil pipe.
[0011] As a preferred technical scheme of the utility model, the hinge block is fixedly connected to the side wall of the first threaded collar, and the limiting pull rod is movably clamped in the inside of the clamping block.
[0012] As a preferred technical scheme of the utility model, the gasket is arranged on one side of the clamping block, and the adjusting nut is slidably clamped on one side of the clamping block.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. The threaded oil casing pipe limiting device, by the first threaded collar and second threaded collar are respectively sleeved on the first oil pipe and second oil pipe, then two sealing rings are respectively sleeved on the first oil pipe and second oil pipe, at this time, the first oil pipe and second oil pipe are inserted into two clamp threaded pipes respectively, and are connected by the threads in the oil pipe coupling, after the first oil pipe, second oil pipe and oil pipe coupling are connected, two sealing rings are pushed to the inside of the clamp threaded pipe in the direction of the oil pipe coupling, then the first threaded collar and second threaded collar are moved to be butt jointed with the clamping groove, at this time, the first threaded collar and second threaded collar are rotated on the two clamp threaded pipes by the external equipment clamped on the screw block, the first threaded collar and second threaded collar are gradually screwed into the clamp threaded pipe and are extruded to be shrunk by the clamping groove, the clamp threaded pipe is clamped to the sealing ring, first oil pipe and second oil pipe, and the clamping and limiting of the oil pipe coupling, first oil pipe and second oil pipe are realized, the device is convenient for clamping and limiting the oil pipe coupling to the first oil pipe and second oil pipe.
[0015] 2. The threaded oil casing pipe limiting device, after the first threaded collar and second threaded collar are completely screwed into the clamp threaded pipe, the hinge block and the clamping block are in the same straight line, the limiting pull rod on the hinge block is rotated and clamped into the clamping block, the adjusting nut is contacted with the clamping block by the gasket and the adjusting nut, the limiting pull rod is limited, the first threaded collar and second threaded collar are connected and fixed, and the device is convenient for connecting the first threaded collar and second threaded collar. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1The utility model discloses a whole structure schematic diagram;
[0017] Figure 2 The utility model discloses a oil pipe main body structure schematic diagram;
[0018] Figure 3 The utility model discloses an oil pipe and oil pipe coupling explosion section structure schematic diagram;
[0019] Figure 4 The utility model discloses an oil pipe coupling and limit mechanism explosion structure schematic diagram;
[0020] Figure 5 The utility model discloses an oil pipe coupling, limit mechanism and limit pull rod connecting structure schematic diagram.
[0021] In the drawing: 1, first oil pipe;101, second oil pipe;102, oil pipe coupling;2, limit mechanism;201, clamping screw pipe;202, clamping groove;203, sealing ring;204, first threaded collar;205, second threaded collar;206, twist block;3, hinged block;301, limit pull rod;302, clamping block;303, washer;304, adjusting nut. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.
[0023] Please refer to Figures 1-5 A threaded oil sleeve limiting device, including first oil pipe 1, the one end of first oil pipe 1 is connected with oil pipe coupling 102, and the other end of oil pipe coupling 102 is connected with second oil pipe 101, and the both ends of oil pipe coupling 102 are provided with limit mechanism 2, which is convenient for oil pipe coupling 102 to increase the clamping and limiting of first oil pipe 1 and second oil pipe 101, and the side wall of limit mechanism 2 is fixedly connected with hinged block 3;
[0024] Please refer to Figure 4, the limiting mechanism 2 includes clamping threaded pipe 201, clamping groove 202, sealing ring 203, first threaded clamp 204, second threaded clamp 205 and twist block 206, clamping threaded pipe 201 is fixedly connected at both ends of the oil pipe coupling 102, clamping groove 202 is opened in the side wall of clamping threaded pipe 201, sealing ring 203 is fixedly connected to the inner wall of the two clamping threaded pipe 201, the first threaded clamp 204 is threadedly connected on the left end of the clamping threaded pipe 201, the second threaded clamp 205 is threadedly connected on the right end of the clamping threaded pipe 201, the twist block 206 is fixedly connected to the outside of the first threaded clamp 204 and the second threaded clamp 205, the sealing ring 203 is sleeved on the outer surface of the first oil pipe 1, the sealing ring 203 is sleeved on the outer surface of the second oil pipe 101, the first threaded clamp 204 is sleeved on the first oil pipe 1, the second threaded clamp 205 is sleeved on the second oil pipe 101, and the clamping threaded pipe 201 is clamped on the outer surface of the first oil pipe 1 and the second oil pipe 101 respectively.
[0025] By setting the clamping threaded pipe 201, the clamping groove 202, the sealing ring 203 and the second threaded clamp 205, the clamping threaded pipe 201 can be inwardly contracted to clamp the first oil pipe 1 and the second oil pipe 101 after the first threaded clamp 204 and the second threaded clamp 205 are screwed into the clamping threaded pipe 201, so that the oil pipe coupling 102 can clamp and limit the first oil pipe 1 and the second oil pipe 101 by means of the clamping threaded pipe 201, and the sealing ring 203 is set to press and clamp the sealing ring 203 during the inward clamping of the clamping threaded pipe 201, so as to fill the gap between the inner wall of the clamping threaded pipe 201 and the first oil pipe 1 and the second oil pipe 101 and increase the friction.
[0026] Please refer to Figure 5 The hinge block 3 is rotatably connected with a limiting pull rod 301 in the inside, the side wall of the second threaded clamp 205 is fixedly connected with a clamping block 302, the front end of the limiting pull rod 301 is sleeved with a gasket 303, the front end of the limiting pull rod 301 is sleeved with an adjusting nut 304, the hinge block 3 is fixedly connected with the side wall of the first threaded clamp 204, the limiting pull rod 301 is movably clamped in the inside of the clamping block 302, the gasket 303 is arranged on one side of the clamping block 302, and the adjusting nut 304 is movably clamped on one side of the clamping block 302.
[0027] By setting the hinge block 3, the limiting pull rod 301 and the clamping block 302, the first threaded clamp 204 and the second threaded clamp 205 are connected, the stability of the first threaded clamp 204 and the second threaded clamp 205 connected to the clamping threaded pipe 201 is improved, and the gasket 303 and the adjusting nut 304 are set to adaptively fix according to the spacing of the first threaded clamp 204 and the second threaded clamp 205.
[0028] The working principle is that when the threaded oil sleeve pipe limiting device is used, in the initial state, first, the first oil pipe 1 is connected with the second oil pipe 101 through the oil pipe coupling 102, the clamping grooves 202 are formed on the clamping threaded pipes 201 fixedly connected at both ends of the oil pipe coupling 102, and the first threaded collar 204 and the second threaded collar 205 are respectively sleeved on the two clamping threaded pipes 201, so that the oil pipe coupling 102 can still clamp and limit the first oil pipe 1 and the second oil pipe 101 after being connected with the first oil pipe 1 and the second oil pipe 101 to prevent slipping, and the hinge block 3 and the clamping block 302 are respectively fixedly connected on the first threaded collar 204 and the second threaded collar 205, the limiting pull rod 301 rotatably connected in the hinge block 3 is clamped in the clamping block 302, and the limiting pull rod 301 is clamped and fixed through the washer 303 and the adjusting nut 304, so as to further improve the tensile resistance of the first threaded collar 204 and the second threaded collar 205 after being connected with the oil pipe coupling 102 and the clamping threaded pipe 201.
[0029] When it is needed to clamp and limit the first oil pipe 1 and the second oil pipe 101 by the oil pipe coupling 102, first, the first threaded collar 204 and the second threaded collar 205 are respectively sleeved on the first oil pipe 1 and the second oil pipe 101, and then the two sealing rings 203 are respectively sleeved on the first oil pipe 1 and the second oil pipe 101, at this time, the first oil pipe 1 and the second oil pipe 101 are inserted into the two clamping threaded pipes 201 at both ends to be connected through the threads in the oil pipe coupling 102, after the first oil pipe 1, the second oil pipe 101 and the oil pipe coupling 102 are connected, the two sealing rings 203 are pushed to the inside of the clamping threaded pipe 201 in the direction of the oil pipe coupling 102, and then the first threaded collar 204 and the second threaded collar 205 are moved to be butt-jointed with the clamping grooves 202, at this time, the first threaded collar 204 and the second threaded collar 205 are respectively driven to rotate on the two clamping threaded pipes 201 by an external device clamped on the screw block 206, the rotating first threaded collar 204 and the second threaded collar 205 are gradually screwed into the clamping threaded pipe 201 and press the clamping threaded pipe 201 to be shrunk through the clamping grooves 202, the shrunk clamping threaded pipe 201 clamps the sealing ring 203, the first oil pipe 1 and the second oil pipe 101, and then the clamping and limiting of the oil pipe coupling 102 and the first oil pipe 1 and the second oil pipe 101 are realized, after the first threaded collar 204 and the second threaded collar 205 are completely screwed into the clamping threaded pipe 201, the positions of the hinge block 3 and the clamping block 302 are in the same straight line, the limiting pull rod 301 on the hinge block 3 is rotated and clamped into the clamping block 302, the adjusting nut 304 is contacted with the clamping block 302 through the washer 303 and the screwing adjustment nut 304 to limit the limiting pull rod 301, so that the first threaded collar 204 and the second threaded collar 205 are connected and fixed, and the device can clamp and limit the first oil pipe 1 and the second oil pipe 101 by the oil pipe coupling 102.
[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A threaded oil sleeve stopper device comprising a first oil tube (1), characterized in that: One end of the first oil pipe (1) is threadedly connected with an oil pipe coupling (102), the other end of the oil pipe coupling (102) is threadedly connected with a second oil pipe (101), both ends of the oil pipe coupling (102) are provided with a limiting mechanism (2) facilitating the oil pipe coupling (102) to increase clamping and limiting of the first oil pipe (1) and the second oil pipe (101), and the side wall of the limiting mechanism (2) is fixedly connected with a hinged block (3). The limiting mechanism (2) comprises clamping threaded pipes (201), clamping grooves (202), sealing rings (203), first threaded collars (204), second threaded collars (205) and twisting blocks (206), the clamping threaded pipes (201) are fixedly connected at both ends of the oil pipe coupling (102), the clamping grooves (202) are formed in the side wall of the clamping threaded pipes (201), the sealing rings (203) are fixedly connected to the inner walls of the clamping threaded pipes (201), the first threaded collars (204) are threadedly sleeved on the clamping threaded pipes (201) at the left end, the second threaded collars (205) are threadedly sleeved on the clamping threaded pipes (201) at the right end, and the twisting blocks (206) are fixedly connected to the outer sides of the first threaded collars (204) and the second threaded collars (205).
2. A threaded oil sleeve stop device as defined in claim 1, wherein: The inside of the hinged block (3) is rotatably connected with a limiting pull rod (301), the side wall of the second threaded collar (205) is fixedly connected with a clamping block (302), the front end of the limiting pull rod (301) is sleeved with a gasket (303), and the front end of the limiting pull rod (301) is sleeved with an adjusting nut (304).
3. A threaded oil sleeve stop device as defined in claim 1 wherein: The sealing ring (203) is sleeved on the outer surface of the first oil pipe (1), and the sealing ring (203) is sleeved on the outer surface of the second oil pipe (101).
4. A threaded oil sleeve stop device as defined in claim 1 wherein: The first threaded collar (204) is sleeved on the first oil pipe (1), and the second threaded collar (205) is sleeved on the second oil pipe (101).
5. A threaded oil sleeve stop device as defined in claim 1 wherein: The clamping threaded pipes (201) are clamped on the outer surfaces of the first oil pipe (1) and the second oil pipe (101) respectively.
6. A threaded oil sleeve stop device as defined in claim 2 wherein: The hinged block (3) is fixedly connected to the side wall of the first threaded collar (204), and the limiting pull rod (301) is movably clamped in the inside of the clamping block (302).
7. A threaded oil sleeve stop device as defined in claim 2 wherein: The gasket (303) is arranged on one side of the clamping block (302), and the adjusting nut (304) is slidingly clamped on one side of the clamping block (302).