Spring locking type safety chuck

Abstract

The utility model belongs to the technical field of drilling engineering, and particularly relates to a spring locking type safety chuck which comprises a shell, an arc-shaped groove is formed in the rear side of the shell, a locking assembly is arranged in the shell and comprises a push rod, the push rod is connected to the front side of the interior of the shell in a sliding mode, and the arc-shaped groove is formed in the rear side of the shell. A transverse plate is fixedly connected to the rear end of the push rod, rotating rods are rotationally connected to the left end and the right end of the transverse plate correspondingly, and connecting blocks are rotationally connected to the ends, away from the transverse plate, of the two rotating rods correspondingly. According to the safety chuck, the locking assembly is arranged, the push disc is pressed to enable the push rod to drive the transverse plate to move, when the transverse plate moves, the two rotating rods correspondingly rotate, so that the two rotating rods respectively drive the two clamping blocks to slide, then the safety chuck is installed at the neck of the perforating gun, then the push disc is loosened, the two clamping blocks make contact with the periphery of the neck of the perforating gun, and the safety chuck is fixed. The perforating gun can be fixed, operation is easy, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling engineering, and specifically relates to a spring-locked safety chuck. Background Art

[0002] In oilfield development and downhole operations, perforating guns are used to form perforations on the borehole wall of oil wells in order to release oil or natural gas from the formation. In order to prevent the perforating gun from falling, a safety chuck is installed at the neck of the perforating gun above the wellhead.

[0003] The prior art has the following defects or problems: The prior art with the publication number of CN217481247U discloses a spring-locked safety chuck, including a chuck, a positioning buckle, a long shaft, a locking sliding sleeve, a screw and a spring. Compared with the traditional safety chuck, this utility model neither requires alignment nor rotation for screwing on. Only by lifting the locking tool upwards can the locking be completed. The operation is simple, fast, time-saving and cost-saving.

[0004] After installing the safety chuck at the neck of the perforating gun during the use of the above equipment, it is still necessary to continuously adjust the safety chuck, so that the locking sliding sleeve is squeezed and slides backward to compress the spring until it reaches the limit position. The adjustment time is long and the efficiency is low.

[0005] It should be noted that the above content belongs to the technical cognition scope of the inventor and does not necessarily constitute the prior art. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a spring-locked safety chuck, which solves the existing problems.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A spring-locked safety chuck, including a housing, an arc-shaped groove is opened at the rear side of the housing, and a locking component is arranged inside the housing;

[0008] The locking component includes a push rod, the push rod is slidably connected to the front side inside the housing, the rear end of the push rod is fixedly connected with a cross plate, both the left and right ends of the cross plate are rotatably connected with a rotating rod, one end of each of the two rotating rods away from the cross plate is rotatably connected with a connecting block, a clamping block is fixedly connected to the rear side of each of the two connecting blocks, a first spring is fixedly connected to one end of the cross plate away from the push rod, and a sliding rod is slidably connected inside the cross plate. The first spring is sleeved on the outer periphery of the sliding rod;

[0009] A plurality of supporting components are arranged at the bottom of the housing.

[0010] As a preferred technical solution of the present utility model, the support assembly includes a fixed block, the fixed block is fixedly connected to the bottom of the housing, a fixed rod is rotatably connected to the middle of the fixed block, a movable rod is slidably connected inside the fixed rod, a support block is rotatably connected to the outer periphery of the bottom of the movable rod, and an adjustment assembly is provided inside the fixed rod.

[0011] As a preferred technical solution of the present utility model, the adjustment assembly includes a plug rod, the plug rod is slidably connected inside the fixed rod, a limiting plate is fixedly connected to the outer periphery of the plug rod, a second spring is fixedly connected to one side of the limiting plate, and the second spring is sleeved on the outer periphery of the plug rod.

[0012] As a preferred technical solution of the present utility model, support rods are fixedly connected to both the left and right sides inside the housing, and the inner parts of the two clamping blocks are respectively slidably connected to the outer peripheries of the two support rods.

[0013] As a preferred technical solution of the present utility model, a slot is opened inside the fixed block, and one end of the plug rod is slidably connected inside the slot.

[0014] As a preferred technical solution of the present utility model, a push plate is fixedly connected to the end of the push rod away from the cross plate.

[0015] As a preferred technical solution of the present utility model, a pulling block is fixedly connected to one end of the plug rod.

[0016] As a preferred technical solution of the present utility model, a baffle is fixedly connected to the end of the sliding rod away from the cross plate, and the baffle is fixedly connected inside the housing.

[0017] Compared with the prior art, the present utility model provides a spring-locked safety chuck, which has the following beneficial effects:

[0018] 1. For this spring-locked safety chuck, by setting the locking assembly, pressing the push plate makes the push rod drive the cross plate to move. When the cross plate moves, the two rotating rods rotate accordingly, so that the two rotating rods drive the two clamping blocks to slide respectively. Then, the safety chuck is installed at the neck of the perforating gun, and then the push plate is released. The two clamping blocks contact the outer periphery of the neck of the perforating gun, thereby fixing the perforating gun. The operation is simple and the efficiency is relatively high.

[0019] 2. For this spring-locked safety chuck, by setting the support assembly and the adjustment assembly, using the rotation relationship between the components in the support assembly, the movable rods can rotate freely to adapt to different foundation support surfaces. By driving the plug rod to move through the pulling block, the plug rod slides out of the slot opened in the movable rod, and the extended length of the movable rod can be adjusted, so as to carry out the adjustment. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the present utility model;

[0021] Figure 2 is the structural schematic diagram of the fixing block of the present utility model;

[0022] Figure 3 is the structural schematic diagram of the clamping block of the present utility model;

[0023] Figure 4 is the structural schematic diagram of the movable rod of the present utility model.

[0024] In the figure: 1, housing; 2, push plate; 3, push rod; 4, cross plate; 5, rotating rod; 6, connecting block; 7, clamping block; 8, support rod; 9, sliding rod; 10, first spring; 11, baffle; 12, fixing block; 13, fixing rod; 14, movable rod; 15, support block; 16, pulling block; 17, inserting rod; 18, second spring; 19, limiting plate; 20, slot. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1 - Figure 3 , in this implementation: A spring-locked safety chuck includes a housing 1. An arc-shaped groove is provided at the rear side of the housing 1 for facilitating the installation of the chuck. A locking assembly is provided inside the housing 1;

[0027] The locking component includes a push rod 3, which is slidably connected to the front side inside the housing 1. The rear end of the push rod 3 is fixedly connected to a cross plate 4. The push rod 3 is used to be fixedly connected to the cross plate 4. When the push rod 3 moves, it can drive the cross plate 4 to move together. Both the left and right ends of the cross plate 4 are rotatably connected to a rotating rod 5. Both ends of the two rotating rods 5 away from the cross plate 4 are rotatably connected to a connecting block 6. The rotating rod 5 is used to connect the cross plate 4 and the connecting block 6. When the cross plate 4 moves, the two rotating rods 5 can rotate correspondingly according to the moving direction of the cross plate 4, so that the connecting block 6 moves correspondingly. A clamping block 7 is fixedly connected to the rear sides of both connecting blocks 6. The connecting block 6 is fixedly connected to the clamping block 7. When the connecting block 6 moves, the clamping block 7 will also move correspondingly. One end of the cross plate 4 away from the push rod 3 is fixedly connected to a first spring 10. A sliding rod 9 is slidably connected inside the cross plate 4. The first spring 10 is sleeved on the outer periphery of the sliding rod 9. The sliding rod 9 is used to support the first spring 10 to ensure that the cross plate 4 will not be excessively squeezed and deformed during the process of squeezing the first spring 10, thus being damaged;

[0028] A plurality of support components are provided at the bottom of the housing 1.

[0029] Please refer to Figure 1 、 Figure 2 、 Figure 4 In this embodiment: The support component includes a fixed block 12, which is fixedly connected to the bottom of the housing 1. A fixed rod 13 is rotatably connected to the middle of the fixed block 12. An active rod 14 is slidably connected inside the fixed rod 13. A support block 15 is rotatably connected to the outer periphery of the bottom of the active rod 14. An adjusting component is provided inside the fixed rod 13. The adjusting component includes an inserting rod 17, which is slidably connected inside the fixed rod 13. A limiting plate 19 is fixedly connected to the outer periphery of the inserting rod 17. A second spring 18 is fixedly connected to one side of the limiting plate 19. The second spring 18 is sleeved on the outer periphery of the inserting rod 17. A slot 20 is opened inside the fixed block 12. One end of the inserting rod 17 is slidably connected inside the slot 20. A pulling block 16 is fixedly connected to one end of the inserting rod 17.

[0030] Specifically, the fixed block 12 is fixed to the bottom of the housing 1 and is used to connect the fixed rod 13, while the active rod 14 is connected to the support block 15 and is used to provide a supporting effect on the housing 1. And the active rod 14 can slide inside the fixed rod 13. The inserting rod 17 is used to cooperate with the slot 20 opened in the active rod 14. After the inserting rod 17 is inserted into the slot 20 opened in the active rod 14, the active rod 14 can be limited and its position can be fixed. The second spring 18 is used to provide an elastic thrust, and the baffle 11 can drive the inserting rod 17 to move.

[0031] Please refer to Figure 1 - Figure 3, in this embodiment: Support rods 8 are fixedly connected to both the left and right sides inside the housing 1. The inner parts of the two clamping blocks 7 are respectively slidably connected to the outer peripheries of the two support rods 8. One end of the push rod 3 away from the cross plate 4 is fixedly connected to a push plate 2. One end of the sliding rod 9 away from the cross plate 4 is fixedly connected to a baffle plate 11, and the baffle plate 11 is fixedly connected inside the housing 1.

[0032] Specifically, the support rod 8 is used to support the movement of the clamping block 7, so that the clamping block 7 can always maintain horizontal movement. The push plate 2 is used to facilitate the operation of pushing the push rod 3 to move. The baffle plate 11 is fixed inside the housing 1 and is used to fix the position of the sliding rod 9.

[0033] The working principle and usage process of the present utility model: The operator presses the push plate 2 to drive the cross plate 4 to move. The cross plate 4 will move along the support rod 8 and apply pressure to the first spring 10, causing the first spring 10 to contract. During the movement of the cross plate 4, the two rotating rods 5 rotate in opposite directions. During the rotation of the two rotating rods 5, the connecting blocks 6 at the other ends will drive the clamping blocks 7 to move along the support rod 8. At this time, the two clamping blocks 7 are in opposite moving states. Subsequently, the arc-shaped groove on one side of the housing 1 can be brought into contact with the neck of the perforating gun. Then, release the push plate 2. The first spring 10 loses pressure and thus generates a reset movement, further generating a thrust to push the cross plate 4 to move. At this time, the two rotating rods 5 rotate relatively, and the two connecting blocks 6 will drive the two clamping blocks 7 to move towards each other, and then the two clamping blocks 7 come into contact with the outer periphery of the perforating gun to complete the fixation.

[0034] After the housing 1 is fixed, the fixing rod 13 in the middle of the fixing block 12 can be rotated, so that the fixing rod 13 can provide multi-angle support for the housing 1, keeping the housing 1 in a horizontal state all the time. When the length of the fixing rod 13 is insufficient, the pulling block 16 can be pulled, and the inserting rod 17 drives the limiting plate 19 to move and compress the second spring 18. After the inserting rod 17 slides out of the slot 20 opened in the movable rod 14, the movable rod 14 can be pulled to adjust the length so as to better adapt to the foundation.

[0035] Finally, it should be noted that: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A spring-locking safety chuck, comprising a housing (1), wherein an arc-shaped groove is formed at the rear side of the housing (1), and it is characterized in that: Inside the housing (1), a locking component is provided; The locking component includes a push rod (3) which is slidably connected to the front side inside the housing (1). The rear end of the push rod (3) is fixedly connected to a cross plate (4). Both the left and right ends of the cross plate (4) are rotatably connected to a rotating rod (5). One end of each of the two rotating rods (5) away from the cross plate (4) is rotatably connected to a connecting block (6). A clamping block (7) is fixedly connected to the rear side of each of the two connecting blocks (6). A first spring (10) is fixedly connected to one end of the cross plate (4) away from the push rod (3). A sliding rod (9) is slidably connected inside the cross plate (4). The first spring (10) is sleeved on the outer periphery of the sliding rod (9); A plurality of support components are provided at the bottom of the housing (1).

2. The spring-locking safety chuck according to claim 1, characterized in that: The support component includes a fixed block (12) which is fixedly connected to the bottom of the housing (1). The middle of the fixed block (12) is rotatably connected to a fixed rod (13). An active rod (14) is slidably connected inside the fixed rod (13). A support block (15) is rotatably connected to the outer periphery of the bottom of the active rod (14). An adjusting component is provided inside the fixed rod (13).

3. The spring-locking safety chuck according to claim 2, wherein: The adjusting component includes a plug rod (17) which is slidably connected inside the fixed rod (13). A limiting plate (19) is fixedly connected to the outer periphery of the plug rod (17). A second spring (18) is fixedly connected to one side of the limiting plate (19). The second spring (18) is sleeved on the outer periphery of the plug rod (17).

4. A spring-locking safety chuck according to claim 1, characterized in that: Support rods (8) are fixedly connected to both the left and right sides inside the housing (1). The inner parts of the two clamping blocks (7) are respectively slidably connected to the outer peripheries of the two support rods (8).

5. The spring-locking safety chuck according to claim 3, wherein: A slot (20) is formed inside the fixed block (12). One end of the plug rod (17) is slidably connected inside the slot (20).

6. The spring-locking safety chuck according to claim 1, wherein: One end of the push rod (3) away from the cross plate (4) is fixedly connected to a push plate (2).

7. The spring-locking safety chuck according to claim 3, characterized in that: One end of the plug rod (17) is fixedly connected to a pull block (16).

8. The spring-locking safety chuck according to claim 1, characterized in that: One end of the sliding rod (9) away from the cross plate (4) is fixedly connected to a baffle (11), and the baffle (11) is fixedly connected inside the housing (1).

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