Casing head forge piece blank

Abstract

The utility model relates to the technical field of casing head forgings, in particular to a casing head forge piece blank which comprises a connecting pipe and an extending pipe, annular installation grooves are formed in the two ends of the connecting pipe, the extending pipe is inserted into the annular installation grooves in a sliding mode and fixedly connected through corresponding locating pieces, and an annular connecting pad is fixed to one end of the extending pipe. A protruding lantern ring is fixed to the annular connecting pad, the protruding lantern ring is connected to a to-be-connected pipeline in a sleeving mode and connected with the to-be-connected pipeline through a sealing pad, the corresponding positioning piece comprises a positioning screw rod, first threaded holes are evenly formed in the connecting pipe, and a second threaded hole is formed in one end of the extending pipe. The sealing gasket can be flexibly detached and replaced, the sealing performance of connection is greatly improved, medium leakage is effectively prevented, meanwhile, connection of pipelines with different diameters can be adapted, safety and reliability of connection are ensured, meanwhile, flexible adjustment of the length is achieved so that various machining requirements can be met, and stability of the whole structure is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sleeve head forging technology, and in particular to a sleeve head forging blank. Background Technology

[0002] A casing head forging blank refers to a pre-formed casing head product obtained through a forging process. Forging is a metal processing technique that deforms a metal billet by applying external force, altering its internal structure to achieve the desired shape and performance. Casing head forging blanks are characterized by their dense structure and excellent mechanical properties, and are mainly used in drilling and oil production operations in the oil and gas energy sectors. For example, announcement number (CN211175745U) discloses a casing head forging blank comprising a pipe body and a connecting frame. An opening is provided at the middle of the upper side of the pipe body. A rubber pad is fitted to the inner wall of the pipe body, with both ends of the rubber pad fitting together and extending upwards from the opening. A fixing band is flexibly fixed to both sides of the front edge of the rubber pad. Horizontal adhesive grooves are provided on both the left and right outer walls of the pipe body, and these grooves are matched with the fixing bands. The connecting frame is located at the opening, and both ends of the rubber pad pass through the connecting frame. Elastic adhesive clamps are movably connected to the upper left and right edges of the connecting frame via hinges. This utility model involves placing a sealing cover over the opening. When the sealing cover is placed downwards to the opening, the top rod on the sealing cover presses against the rubber pad, and the locking rod on the top rod is squeezed between the connecting blocks after the spring is compressed. When the end of the locking rod encounters the locking hole on the connecting block, the locking rod is inserted into the locking hole under the action of the rebound force, thereby fixing and locking the sealing cover.

[0003] However, while the above technical solution does not require milling of the sleeve head on a lathe, its application is limited. The length cannot be flexibly adjusted, and the sealing performance is poor when connecting to pipes of different diameters, resulting in certain drawbacks in its use.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] To overcome the technical defects of the existing technology, this utility model provides a sleeve head forging blank, which not only realizes the flexible adjustment of the length to adapt to various processing needs, but also ensures the stability of the overall structure through positioning parts, and allows the sealing gasket to be flexibly disassembled and replaced, greatly improving the sealing performance of the connection, effectively preventing media leakage, and can adapt to pipe connections of different diameters, ensuring the safety and reliability of the connection.

[0006] The technical solution adopted by this utility model is as follows: it includes a connecting pipe and an extension pipe. The connecting pipe has annular mounting grooves at both ends. The extension pipe is slidably inserted into the annular mounting grooves and is fixedly connected by the corresponding positioning member. An annular connecting pad is fixed at one end of the extension pipe. A protruding collar is fixed on the annular connecting pad. The protruding collar is sleeved on the pipe to be connected and is connected to the pipe to be connected by the sealing gasket.

[0007] Preferably, in order to achieve a precise connection between the extension tube and the connecting tube and facilitate installation and disassembly, the corresponding positioning component includes the positioning screw, the connecting tube is provided with a first threaded hole evenly distributed, and the extension tube is provided with a second threaded hole at one end.

[0008] Preferably, in order to enable the extension tube to be fixedly connected to the connecting tube by means of the positioning screw, the first threaded hole corresponds to the second threaded hole, and the positioning screw is threaded into the first threaded hole and the second threaded hole.

[0009] Preferably, in order to enable the annular connecting pad to be fixedly connected to the protruding collar through the pin connecting assembly, the annular connecting pad is fitted to the inner wall of the protruding collar, and the annular connecting pad is fixedly connected to the protruding collar through the pin connecting assembly.

[0010] Preferably, in order to position the annular connecting pad on the inner wall of the protruding collar through the pin head, the pin connection assembly includes the pin head and the positioning seat. The pin head is fixed on the annular connecting pad and is engaged in a clearance groove opened on the protruding collar.

[0011] Preferably, in order to facilitate the connection between the pin head and the positioning seat, the pin head is located between the positioning seats.

[0012] Preferably, in order to enable the pin head to be fixedly connected to the positioning seat via the positioning pin rod, corresponding positioning pin holes are provided on the pin head and the positioning seat, and the positioning pin rod is inserted into the positioning pin holes.

[0013] Preferably, in order to facilitate the overall fixing of the forging onto the pipe to be connected, the annular connecting pad is welded onto the pipe to be connected.

[0014] The beneficial effects of this utility model are as follows: by combining the connecting pipe with the slidable extension pipe, not only is the length flexibly adjusted to adapt to various processing needs, but the positioning component also ensures the stability of the overall structure; by using the pin connection component, the sealing gasket can be flexibly disassembled and replaced, which greatly improves the sealing performance of the connection, effectively prevents media leakage, and can adapt to pipe connections of different diameters, ensuring the safety and reliability of the connection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the connection structure between the sealing gasket and the protruding collar of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the pin connection assembly of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Connecting pipe; 2. Extension pipe; 3. Corresponding positioning component; 301. Positioning screw; 4. Annular connecting pad; 5. Protruding collar; 6. Sealing gasket; 7. Pin connecting assembly; 701. Pin head; 702. Positioning seat; 703. Positioning pin rod. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1-4As shown, this embodiment provides a forging blank for a sleeve head, including a connecting pipe 1 and an extension pipe 2. The connecting pipe 1 has annular mounting grooves at both ends. The extension pipe 2 is slidably inserted into the annular mounting grooves and fixedly connected by corresponding positioning elements 3. An annular connecting pad 4 is fixed to one end of the extension pipe 2, and a protruding collar 5 is fixed on the annular connecting pad 4. The protruding collar 5 is fitted onto the pipe to be connected and connected to the pipe to be connected via a sealing gasket 6. The annular connecting pad 4 is welded to the pipe to be connected. In use, the connecting pipe 1 serves as the main structure, with annular mounting grooves at both ends. The annular mounting grooves are precisely sized to ensure that the extension pipe 2 can be smoothly and securely slidably inserted into them. The combination of the extension pipe 2 and the connecting pipe 1 allows for extending the overall length according to actual needs, accommodating different processing requirements, and achieving secure fixing through positioning elements. This ensures structural stability and facilitates installation and disassembly. The annular connecting pad 4 fixed to one end of the extension pipe 2 greatly enhances the sealing and stability of the connection. The annular connecting gasket 4 is tightly fitted onto the pipe to be connected, which makes the sealing effect between the protruding collar 5 and the pipe to be connected better, effectively preventing media leakage and ensuring absolute sealing of the connection.

[0022] The corresponding positioning component 3 includes a positioning screw 301. The connecting pipe 1 has evenly spaced first threaded holes, and one end of the extension pipe 2 has a second threaded hole. The first and second threaded holes correspond to each other, and the positioning screw 301 is threaded into both the first and second threaded holes. The corresponding positioning component 3 embodies the precision and practicality of the sleeve head forging blank. The positioning component 3, including the positioning screw 301, plays a crucial role in connecting the entire structure, ensuring precise alignment with the extension pipe 2. When the extension pipe 2 slides to the predetermined position of the connecting pipe 1, the first and second threaded holes align. At this point, the positioning screw 301 can be threaded into these two sets of corresponding threaded holes, achieving a tight and secure connection between the extension pipe 2 and the connecting pipe 1. This not only enhances the stability of the structure but also provides great convenience for subsequent maintenance, replacement, and adjustment.

[0023] The annular connecting pad 4 is fitted onto the inner wall of the protruding collar 5, and is fixedly connected to the protruding collar 5 via a pin connecting assembly 7. The pin connecting assembly 7 includes a pin head 701 and a positioning seat 702. The pin head 701 is fixed to the annular connecting pad 4 and engages in a clearance groove on the protruding collar 5. The pin head 701 is located between the positioning seats 702. Corresponding positioning pin holes are formed on the pin head 701 and the positioning seat 702, and a positioning pin rod 703 is inserted into the positioning pin hole. In use, the annular connecting pad 4 is accurately fitted onto the inner wall of the protruding collar 5. To ensure the annular connecting pad 4 is flat and without misalignment, the pin head 701 is then inserted into the clearance groove on the protruding collar 5, ensuring initial positioning and connection between the annular connecting pad 4 and the protruding collar 5. Next, the positioning seat 702 is placed on both sides of the pin head 701, ensuring that the positioning pin holes on the pin head 701 and the positioning seat 702 are fully aligned. At this point, the positioning pin rod 703 comes into play, being inserted into the corresponding positioning pin hole, thus firmly locking the position between the pin head 701 and the positioning seat 702, and indirectly fixing the annular connecting pad 4 and the protruding collar 5. The use of this pin connection assembly 7 not only achieves a tight connection between the annular connecting pad 4 and the protruding collar 5, but also greatly enhances the stability and durability of the connection. Furthermore, annular connecting pads 4 of different widths can be used, making it suitable for connecting pipes of different diameters, thus providing greater flexibility.

[0024] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A forging blank for a sleeve head, comprising a connecting pipe (1) and an extension pipe (2), characterized in that: The connecting pipe (1) has annular mounting grooves at both ends. The extension pipe (2) is slidably inserted into the annular mounting grooves and is fixedly connected by corresponding positioning parts (3). An annular connecting pad (4) is fixed at one end of the extension pipe (2). A protruding collar (5) is fixed on the annular connecting pad (4). The protruding collar (5) is sleeved on the pipe to be connected and is connected to the pipe to be connected by a sealing gasket (6).

2. The forging blank for the sleeve head according to claim 1, characterized in that: The corresponding positioning component (3) includes a positioning screw (301), the connecting pipe (1) is provided with a first threaded hole evenly distributed, and the extension pipe (2) is provided with a second threaded hole at one end.

3. The forging blank for the sleeve head according to claim 2, characterized in that: The first threaded hole corresponds to the second threaded hole, and the positioning screw (301) is threaded into the first threaded hole and the second threaded hole.

4. The forging blank for the sleeve head according to claim 1, characterized in that: The annular connecting pad (4) is attached to the inner wall of the protruding collar (5), and the annular connecting pad (4) is fixedly connected to the protruding collar (5) through the pin connecting assembly (7).

5. The forging blank for the sleeve head according to claim 4, characterized in that: The pin connection assembly (7) includes a pin head (701) and a positioning seat (702). The pin head (701) is fixed on the annular connecting pad (4) and the pin head (701) is engaged in the clearance groove opened on the protruding collar (5).

6. The forging blank for the sleeve head according to claim 5, characterized in that: The pin head (701) is located between the positioning seats (702).

7. The forging blank for the sleeve head according to claim 6, characterized in that: The pin head (701) and the positioning seat (702) have corresponding positioning pin holes, and a positioning pin rod (703) is inserted into the positioning pin hole.

8. The forging blank for the sleeve head according to claim 1, characterized in that: The annular connecting pad (4) is welded onto the pipe to be connected.

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