Casing head slip locking device with adjustable size

Abstract

The utility model discloses a size-adjustable casing head slip locking device which comprises a casing head body and a casing pipe body, the casing pipe body is arranged in the casing head body in a sliding mode, an adjusting mechanism is arranged in the casing head body, reset springs are fixed to the inner wall of the casing head body, and the inner wall of the casing head body is provided with a locking mechanism. And a clamping block is fixed to one side of the reset spring, a replacement mechanism is arranged in the clamping block, an anti-skid pad is arranged on one side of the clamping block, a supporting block is arranged on one side of the anti-skid pad, and a fixing bolt penetrates through the interior of the clamping block. The adjusting rod is screwed to drive the slip body to horizontally move under the action of the fixing rod and the guide rod, the position of the slip body can be conveniently adjusted according to actual use conditions through the operation, casing pipe bodies of different sizes can be conveniently locked and fixed, the applicability of the slip is improved, and the slip body can be conveniently used. Therefore, different use conditions can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a casing head slip locking device with adjustable size. Background Art

[0002] During the oil and gas drilling process, if you encounter a sudden high-pressure oil and gas layer, if the wellhead equipment cannot meet the requirements of the sudden high-pressure situation, a blowout accident may occur, or even burn the wellhead, making subsequent operations very difficult. Therefore, a casing head slip locking device is needed to install a new wellhead so that drilling can continue;

[0003] A sleeve head slip locking device with announcement number CN212867485U includes a sleeve body, a support block movably connected to the surface of the sleeve body, a U-shaped clamping block fixedly connected to the surface of the support block, a spring fixedly connected to the surface of the U-shaped clamping block, an end of the spring fixedly connected to the sleeve body head, a threaded groove formed on the surface of the sleeve body, a first screwing member threadedly connected to the surface of the sleeve body head, and a slip movably connected to the surface of the U-shaped clamping block located on one side of the support block. The utility model fixes and installs the sleeve body head by manually screwing the first screwing member through the U-shaped clamping block, and squeezes the U-shaped clamping block to fit different sizes through the elastic rebound of the spring, thereby improving its applicability. The structure is simple, convenient and practical, and is convenient for quickly installing and fixing the sleeve body head, effectively improving the work efficiency of the staff;

[0004] However, the above-mentioned casing head slip locking device still has the following defects when in use: when the above-mentioned existing technology is in use, the slip and the connecting block are fixedly connected. Since the position of the connecting block is fixed, the position of the slip is also fixed, which makes it inconvenient to adjust the position of the slip according to actual usage, making it difficult to adapt to casings of different sizes, which in turn leads to its large limitations in use and low practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a casing head slip locking device with adjustable size, so as to solve the problem that the existing casing head slip locking device proposed in the above background technology is inconvenient to adjust the slip position according to actual usage conditions during use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a casing head slip locking device with adjustable size, comprising a casing head body and a casing tube body, wherein the casing head body is slidably provided with the casing tube body;

[0007] An adjustment mechanism is provided inside the sleeve head body, a return spring is fixed to the inner wall of the sleeve head body, and a clamping block is fixed on one side of the return spring, a replacement mechanism is provided inside the clamping block, an anti-slip pad is provided on one side of the clamping block, and a support block is provided on one side of the anti-slip pad, a fixing bolt passes through the interior of the clamping block, and one end of the fixing bolt extends to the outside of the sleeve head body, a thread groove is provided at one end of the fixing bolt, and the thread groove is opened inside the sleeve body, and a tooth groove is provided on the surface of the sleeve body.

[0008] When using the sleeve head slip locking device with adjustable size of the present technical solution, the adjustment mechanism is provided so that sleeves of different sizes can be locked and fixed during use, thereby improving its practicality.

[0009] Preferably, the adjustment mechanism includes an adjusting rod, and the adjusting rod is arranged inside the casing head body, a rotating block is provided at one end of the adjusting rod, and a cava body is fixed on one side of the rotating block, three teeth are fixed on one side of the cava body, a guide rod is fixed on the other side of the cava body, and a fixing rod is provided on the outside of the guide rod, and one end of the fixing rod is fixedly connected to the inner wall of the casing head body.

[0010] Preferably, two groups of fixing rods are provided, each group of fixing rods is provided with two fixing rods, and both groups of fixing rods have internal hollow structures.

[0011] Preferably, the latch teeth are provided in two groups, each group of the latch teeth is provided with three latch teeth, and the latch teeth in the two groups are distributed at equal intervals.

[0012] Preferably, the replacement mechanism includes a mounting groove, and the mounting groove is arranged inside the clamping block, and limiting blocks are arranged on both sides of the interior of the mounting groove, and a fixing block is arranged inside the mounting groove, and a connecting rod is fixed on one side of the fixing block, and one side of the connecting rod is connected to the anti-slip pad.

[0013] Preferably, the limit blocks are provided in multiple groups, each group of the limit blocks is provided with two, and the material of the multiple groups of limit blocks is rubber.

[0014] Preferably, two anti-slip pads are provided, both of which are made of rubber, and the cross-sections of the two sets of anti-slip pads are arc-shaped.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the size-adjustable casing head slip locking device can not only adjust the position of the slip according to actual usage conditions, but also facilitate the replacement of the anti-slip pad;

[0016] By rotating the adjusting rod, the slip body is driven to move horizontally under the action of the fixing rod and the guide rod. The above operation facilitates the adjustment of the position of the slip body according to the actual use situation, thereby facilitating the locking and fixing of casing bodies of different sizes, thereby improving its applicability to cope with different use situations.

[0017] By pulling the anti-slip pad, the fixing block is driven to move horizontally under the action of the connecting rod. During the process of continuously pulling the anti-slip pad, the limit block is elastically deformed. The above operation makes it easy to release the limit of the anti-slip pad, thereby facilitating the disassembly and replacement of the damaged anti-slip pad, thereby improving its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of a top-view cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of a partial front cross-sectional structure of a card block of the present invention;

[0022] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the utility model.

[0024] Explanation of the reference numerals in the figure: 1. Casing head body; 2. Fixing bolt; 3. Return spring; 4. Adjusting mechanism; 401. Adjusting rod; 402. Slip body; 403. Fixing rod; 404. Rotating block; 405. Clamping tooth; 406. Guide rod; 5. Casing body; 6. Tooth groove; 7. Threaded groove; 8. Support block; 9. Anti-slip pad; 10. Clamping block; 11. Replacement mechanism; 1101. Fixing block; 1102. Limiting block; 1103. Connecting rod; 1104. Mounting groove. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 The utility model provides an embodiment of a casing head slip locking device with adjustable size, comprising a casing head body 1 and a casing body 5. The casing body 5 is slidably arranged inside the casing head body 1, and an adjustment mechanism 4 is arranged inside the casing head body 1;

[0027] The adjustment mechanism 4 includes an adjustment rod 401, and the adjustment rod 401 is arranged inside the casing head body 1. A rotating block 404 is provided at one end of the adjustment rod 401, and a slip body 402 is fixed to one side of the rotating block 404. Three teeth 405 are fixed to one side of the slip body 402. A guide rod 406 is fixed to the other side of the slip body 402, and a fixing rod 403 is provided on the outside of the guide rod 406. One end of the fixing rod 403 is fixedly connected to the inner wall of the casing head body 1;

[0028] There are two groups of fixing rods 403, each group of fixing rods 403 is provided with two, and both groups of fixing rods 403 are hollow structures;

[0029] There are two groups of latch teeth 405, each group of latch teeth 405 is provided with three latch teeth, and the two groups of latch teeth 405 are distributed at equal intervals;

[0030] Specifically, such as Figure 1 、 Figure 4 、 Figure 5 As shown, when in use, the position of the slip body 402 is adjusted by rotating the adjustment rod 401 under the action of the rotating block 404, thereby facilitating the locking of the casing head body 1 of the body size, thereby improving its practicality;

[0031] The inner wall of the casing head body 1 is fixed with a return spring 3, and a clamping block 10 is fixed on one side of the return spring 3. A replacement mechanism 11 is provided inside the clamping block 10.

[0032] The replacement mechanism 11 includes a mounting groove 1104, which is disposed inside the clamping block 10. Limiting blocks 1102 are disposed on both sides of the mounting groove 1104. A fixing block 1101 is disposed inside the mounting groove 1104, and a connecting rod 1103 is fixed to one side of the fixing block 1101. One side of the connecting rod 1103 is connected to the anti-slip pad 9.

[0033] There are multiple groups of limit blocks 1102, each group of limit blocks 1102 is provided with two, and the material of the multiple groups of limit blocks 1102 is rubber;

[0034] Specifically, such as Figure 1 、 Figure 2 、 Figure 3 As shown, when in use, the anti-slip pad 9 is pulled so that the fixing block 1101 is away from the limiting block 1102, thereby facilitating the removal of the anti-slip pad 9 from one side of the clamping block 10. The above operation facilitates the replacement of the anti-slip pad 9 that has been used for a long time, thereby ensuring its anti-slip effect;

[0035] An anti-slip pad 9 is provided on one side of the block 10;

[0036] There are two anti-skid pads 9, both of which are made of rubber, and the cross-sections of the two sets of anti-skid pads 9 are arc-shaped;

[0037] A support block 8 is provided on one side of the anti-slip pad 9, a fixing bolt 2 is passed through the interior of the clamping block 10, and one end of the fixing bolt 2 extends to the outside of the casing head body 1, and a thread groove 7 is provided at one end of the fixing bolt 2, and the thread groove 7 is opened inside the casing body 5, and a tooth groove 6 is provided on the surface of the casing body 5;

[0038] Specifically, such as Figure 1 、 Figure 2 As shown, when in use, the anti-slip pad 9 can prevent the sleeve head body 1 from sliding when the sleeve head body 1 is fixed, thereby facilitating subsequent installation operations.

[0039] Working principle: When the utility model is used, first, the sleeve head body 1 is sleeved on the outside of the sleeve body 5. During the sleeve connection process, the anti-slip pad 9 and the outside of the sleeve body 5 are fitted with each other, and by utilizing the elastic rebound of the return spring 3, sleeve bodies 5 of different sizes can be installed and fixed. By screwing the fixing bolt 2, one end of the tooth groove 6 passes through the block 10 and is inserted into the inside of the thread groove 7, thereby facilitating the fixed installation of the sleeve body 5.

[0040] Secondly, by screwing the adjusting rod 401, the slip body 402 is driven to move horizontally under the action of the rotating block 404, so that the guide rod 406 slides inside the fixed rod 403. The guide rod 406 can limit the moving slip body 402 on the one hand, thereby preventing it from being offset in position and affecting subsequent operations, and on the other hand, it can also guide the moving slip body 402, thereby improving its stability during movement. While the slip body 402 moves horizontally, it pushes the locking tooth 405 to make synchronous horizontal movement until the locking tooth 405 is inserted into the inside of the tooth socket 6. The above operation makes it easy to adjust the position of the slip body 402, thereby facilitating the locking operation of sleeve tubes 5 of different sizes, thereby improving its flexibility.

[0041] Finally, when the anti-slip pad 9 is damaged during long-term use, the anti-slip pad 9 is pulled to drive the connecting rod 1103 to make horizontal movement, and the connecting rod 1103 drives the fixed block 1101 to make synchronous horizontal movement while making horizontal movement, thereby squeezing the limit block 1102, so that the limit block 1102 is elastically deformed by the squeezing force, and then the limit on the fixed block 1101 is released, so that the fixed block 1101 can be removed from the inside of the installation groove 1104. The above operation releases the limit on the anti-slip pad 9, making it easier to disassemble and replace the damaged anti-slip pad 9, thereby improving its practicality.

[0042] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0043] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A casing head slip locking device with adjustable size, comprising a casing head body (1) and a casing body (5), wherein the casing head body (1) is slidably provided with the casing body (5); Its characteristics are: An adjusting mechanism (4) is provided inside the sleeve head body (1), a reset spring (3) is fixed to the inner wall of the sleeve head body (1), and a clamping block (10) is fixed on one side of the reset spring (3), a replacement mechanism (11) is provided inside the clamping block (10), an anti-slip pad (9) is provided on one side of the clamping block (10), and a support block (8) is provided on one side of the anti-slip pad (9), a fixing bolt (2) is passed through the inside of the clamping block (10), and one end of the fixing bolt (2) extends to the outside of the sleeve head body (1), one end of the fixing bolt (2) is provided with a thread groove (7), and the thread groove (7) is opened inside the sleeve body (5), and a tooth groove (6) is provided on the surface of the sleeve body (5).

2. The size-adjustable casing head slip locking device according to claim 1, characterized in that: The adjusting mechanism (4) comprises an adjusting rod (401), and the adjusting rod (401) is arranged inside the casing head body (1); a rotating block (404) is arranged at one end of the adjusting rod (401), and a slip body (402) is fixed on one side of the rotating block (404); three latching teeth (405) are fixed on one side of the slip body (402); a guide rod (406) is fixed on the other side of the slip body (402), and a fixing rod (403) is arranged on the outside of the guide rod (406); one end of the fixing rod (403) is fixedly connected to the inner wall of the casing head body (1).

3. The size-adjustable casing head slip locking device according to claim 2, characterized in that: The fixing rods (403) are provided in two groups, each group of the fixing rods (403) is provided with two, and both groups of the fixing rods (403) are internally hollow structures.

4. The size-adjustable casing head slip locking device according to claim 2, characterized in that: The latch teeth (405) are provided in two groups, each group of the latch teeth (405) is provided with three latch teeth, and the two groups of the latch teeth (405) are distributed at equal intervals.

5. The size-adjustable casing head slip locking device according to claim 1, characterized in that: The replacement mechanism (11) comprises a mounting groove (1104), and the mounting groove (1104) is arranged inside the clamping block (10), and both sides of the interior of the mounting groove (1104) are provided with limit blocks (1102), and a fixing block (1101) is provided inside the mounting groove (1104), and a connecting rod (1103) is fixed to one side of the fixing block (1101), and one side of the connecting rod (1103) is connected to the anti-slip pad (9).

6. The size-adjustable casing head slip locking device according to claim 5, characterized in that: The limit blocks (1102) are provided in multiple groups, each group of the limit blocks (1102) is provided with two, and the material of the multiple groups of the limit blocks (1102) is rubber.

7. The size-adjustable casing head slip locking device according to claim 1, characterized in that: Two anti-slip pads (9) are provided, both of which are made of rubber, and the cross-sections of the two sets of anti-slip pads (9) are both arc-shaped.

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