CN202882861U - Device for fast connecting and locking underwater joints - Google Patents

Abstract

The utility model discloses a fast connection and locking device for an underwater joint, which comprises two parts, an upper assembly and a lower assembly. A terminal is arranged on the top of the upper assembly, and a lead screw is set in a shaft center hole at the lower end of the end. Extending downwards into the sleeve, the upper part of the inner cavity of the sleeve is provided with an adjustment block and a limit plate; a snap ring is provided upward on the outer circumference of the lead screw, and a card groove is provided upward on the inner circumference of the limit plate, and the snap ring Embedded in the card slot; the lower part of the inner cavity of the sleeve is provided with a connecting rod, and the lower end of the screw is threadedly connected with the upper end of the connecting rod; the sleeve is slidingly connected with three longitudinal chute on the outer surface of the connecting rod; the lower end of the connecting rod Three clamping blocks are evenly distributed on the circumference of the outer circle, and a clamping groove is formed between every two clamping blocks; the lower assembly includes a connecting seat and a lower connecting plate, and the connecting seat is set in cooperation with the clamping blocks and the clamping grooves of the connecting rod. The device of the utility model is used for quickly connecting and locking a group (multiple) of paired joints underwater simultaneously in deep water, and has simple operation and reliable operation.

Description

Quick connect locking device for underwater joints

technical field

The utility model belongs to the technical field of oil drilling and production equipment, and relates to a fast connection and locking device for an underwater joint.

Background technique

When a group (multiple) of joints are installed at a long distance in deep water at the same time, it is necessary to use a set of devices to quickly connect and lock the matching joints to realize the connection of the joint pipes. During installation, it is necessary to remotely control the accurate positioning of the joints, and at the same time quickly connect and lock multiple joints. The connection is required to be simple and fast, and the locking is reliable.

At present, there is no device for simultaneously connecting and locking a group of pipe joints in deep water.

Contents of the invention

The purpose of the utility model is to provide a fast connection and locking device for underwater joints, which solves the problem in the prior art that a group of pipe joints can be connected and locked simultaneously in deep water.

The technical solution adopted by the utility model is, a fast connection and locking device for underwater joints, which includes two parts, an upper assembly and a lower assembly,

There is a terminal on the top of the upper assembly, and a lead screw is set in the axial hole at the lower end of the terminal. The lead screw extends downward into the sleeve. Limiting disc; a snap ring is provided on the outer circumference of the lead screw, and a card slot is provided on the inner circumference of the limiting disc, and the snap ring is embedded in the card slot and can rotate in the card slot;

The lower section of the inner cavity of the sleeve is provided with a connecting rod, and the lower end of the lead screw is connected with the upper end of the connecting rod through threaded engagement; 3 guide pins are uniformly distributed upward on the inner circumference of the sleeve, and evenly distributed on the outer surface of the connecting rod. Three longitudinal chute, each chute is divided into two sections a section and b section chute, wherein a section chute has an angle with the axial direction of the connecting rod, b section chute is parallel to the axis of the connecting rod; into the chute; the outer circle of the lower end of the connecting rod has three clamping blocks evenly distributed in the circumferential direction, and a clamping groove is formed between every two clamping blocks;

The lower assembly includes a connection seat and a lower connection plate. Three female blocks are evenly distributed on the inner circumference of the upper cavity of the connection seat and form three female card slots. The three female blocks and the three female card slots are respectively connected with the connection The three clamping blocks and the three clamping slots of the rod are correspondingly matched with each other.

The beneficial effect of the utility model is: it is used in deep water to quickly connect and lock a group (multiple) of paired joints underwater at the same time, the operation is simple, and the work is reliable.

Description of drawings

Figure 1 is a schematic diagram of the upper assembly of the underwater joint quick connection locking device of the present invention;

Fig. 2 is a schematic diagram of the lower assembly of the underwater joint quick connection locking device of the present invention;

Fig. 3 is A-A sectional view among Fig. 1;

Figure 4 is a view from direction B in Figure 1 (excluding the upper connection plate);

Figure 5 is a C-direction view in Figure 2 (excluding the lower connection plate);

Figure 6 is a schematic diagram of the initial installation of the upper and lower parts of the assembly;

Fig. 7 is a schematic diagram after the upper and lower parts of the assembly are meshed.

In the figure, 1. Terminal, 2. Adjusting block, 3. Limiting plate, 4. Lead screw, 5. Sleeve, 6. Connecting rod, 7. Upper connecting plate, 8. Joint, 9. Guide rod, 10 .Connecting seat, 11. Connector, 12. Lower connecting plate, 13. Guide hole, 14. Guide pin, 6-1. Block, 6-2. Card slot, 10-1. Female block, 10-2. Female card slot, 10-3. Upper cavity.

Detailed ways

Referring to Fig. 1 and Fig. 2, the structure of the quick connection locking device for the underwater joint of the present invention is: it includes two parts, the upper assembly and the lower assembly.

The upper assembly mainly includes a terminal 1, an adjustment block 2, a limit plate 3, a screw 4, a sleeve 5, a connecting rod 6, an upper connecting plate 7 and a guide rod 9.

The terminal 1 is set on the top of the upper assembly for hoisting the whole set of upper equipment; the lead screw 4 extends downward into the sleeve 5 and upward into the terminal 1; the upper section of the inner cavity of the sleeve 5 is provided with an adjustment Block 2, the longitudinal middle position of the adjustment block 2 is provided with a limit plate 3;

A snap ring is provided on the outer circumference of the lead screw 4, and a snap ring is provided on the inner circumference of the limit plate 3. The snap ring is embedded in the slot and can rotate in the slot; Interaction, so that the snap ring of the screw 4 can only rotate around its axial direction in the slot of the limit plate 3 without axial movement, thereby limiting the axial movement of the screw 4;

The connecting rod 6 is installed in the sleeve 5, and the lower end of the lead screw 4 is engaged with the upper end of the connecting rod 6 through thread engagement. When the lead screw 4 rotates, it will drive the connecting rod 6 to slide up and down in the inner cavity of the sleeve 5;

As shown in Figure 3, three guide pins 14 are evenly distributed on the inner circumference of the sleeve 5, and three longitudinal chutes are evenly distributed on the outer surface of the connecting rod 6, and each chute is divided into a section and b section Two sections of chute, as shown in Figure 1, wherein a section of the chute forms a certain angle with the axial direction of the connecting rod 6, and b section of the chute is parallel to the axis of the connecting rod 6; the guide pin 14 is snapped into the chute, Make the chute slide along the guide pin 14, as shown in Figure 1 and Figure 6; when the lead screw 4 rotates, it will drive the connecting rod 6 to move up and down along its axis, and due to the guiding effect of the guide pin 14, in the section a of the chute When sliding over the guide pin 14, the connecting rod 6 will rotate a certain angle around its own axis while moving up and down; then rotate around its axis;

As shown in Figure 4, the structure of the lower end of the connecting rod 6 is that three clamping blocks 6-1 are evenly distributed in the circumferential direction of the outer circle of the connecting rod 6, and a clamping groove 6 is formed between every two clamping blocks 6-1. -2.

As shown in Figure 2 and Figure 5, the lower assembly includes a connecting seat 10 and a lower connecting plate 12, and three female blocks 10-1 are evenly distributed on the inner circumference of the upper cavity 10-3 of the connecting seat 10 and form three The female card slot 10-2 is arranged and used in cooperation with the card block 6-1 and the card slot 6-2 evenly distributed on the lower end of the connecting rod 6 of the upper device. When connecting, the three blocks 6-1 on the lower end of the connecting rod 6 pass through the three female card slots 10-2 on the connecting seat 10, and are inserted into the upper cavity 10-3 of the connecting seat 10, When the connecting rod 6 rotates a certain angle around its axial direction, the three clamping blocks 6-1 on the connecting rod 6 and the three female clamping blocks 10-1 on the connecting seat 10 are engaged with each other, and the upper assembly is locked in the lower part. On the connection seat 10 of the assembly, the upper assembly and the lower assembly are connected into one, as shown in FIG. 7 .

A guide rod 9 is installed on the lower surface of the upper connection plate 7, and a guide hole 13 is provided at a position corresponding to the upper surface of the lower connection plate 12. When installing, the guide rod 9 is inserted into the guide hole 13 to align the upper assembly. Installation guide.

A joint 8 is installed on the lower surface of the upper connection plate 7, and a mating joint 11 corresponding to the joint 8 is provided at a position corresponding to the upper surface of the lower connection plate 12. The upper and lower assemblies of the device are used to connect the two joints together. and lock tightly.

The block 6-1 on the lower end of the connecting rod 6 can be made into an integral structure with the connecting rod 6, and the female block 10-1 on the connecting seat 10 can be made into an integral structure with the connecting seat 10.

The installation process of the quick connection locking device of the utility model is as follows:

1) In the initial state, first install the upper equipment that needs to be connected underwater on the upper assembly, and use the upper assembly to carry the upper equipment. As shown in Figure 1, install the lower assembly on the underwater equipment;

2) When installing, use a special tool to clamp the end 1 of the upper assembly and lower it. When the upper assembly and the lower assembly are close enough, insert the guide rod 9 of the upper assembly into the corresponding position of the lower assembly. In the guide hole 13, as shown in Figure 6, then continue to lower the upper assembly slowly;

After inserting the lower end of the connecting rod 6 into the cavity 10-3 of the connecting seat 10, use a special tool to rotate the lead screw 4, driven by the lead screw 4, the connecting rod 6 will move upward relative to the lead screw 4, and the upper part The assembly then moves downwards, making the upper connection plate 7 approach the lower connection plate 12; when the chute of section a slides along the guide pin 14, the connecting rod 6 will turn through a certain angle along its axis, so that the connecting rod 6 The block 6-1 on the lower end meshes with the female block 10-1 on the connecting seat 10 to connect the upper assembly and the lower assembly together, as shown in Figure 7;

Continue to rotate the lead screw 4, when the b-section chute slides over the guide pin 14, due to the restriction of the guide pin 14, the connecting rod 6 will continue to move upward relative to the lead screw 4, but will no longer rotate around its axis; the connecting rod 6 drives the upper assembly Components continue to move downward, so that the mating joints on the upper and lower connecting plates are connected and engaged with each other, and finally the mating joints are locked under the action of the threads on the leading screw 4 and the connecting rod 6 .

3) When disengaging the joint, reversely rotate the lead screw 4, the paired joints on the upper and lower connecting plates will withdraw from engagement and disengage, and continue to reversely rotate the lead screw 4 to make the clamp on the lower end of the connecting rod 6 The block 6-1 withdraws from the engagement with the female block 10-1 on the lower connecting seat 10, and the lower end of the connecting rod 6 will withdraw from the cavity 10-3 of the lower connecting seat 10, so that the upper assembly and the lower assembly Separated from each other, so as to complete the recovery of the upper assembly, that is, the upper equipment.

The device of the utility model can quickly connect and lock multiple joints at the same time through one operation, and is easy to operate, fast and reliable to connect.

Claims (5)

1. One kind under water the joint quick connection lock tightly install, it is characterized in that: comprise top assembly and bottom assembly two parts,

   Termination (1) is arranged on the top of top assembly, lower end, termination (1) axle center hole is set with leading screw (4), leading screw (4) puts in downwards in the sleeve (5), and the epimere of sleeve (5) inner chamber is provided with adjustment block (2), and vertical middle part of adjustment block (2) is provided with position-arresting disk (3); Excircle at leading screw (4) upwards is provided with snap ring, upwards is provided with draw-in groove at the inner periphery of position-arresting disk (3), and snap ring is embedded in the draw-in groove, and can rotate in draw-in groove;

   The hypomere of sleeve (5) inner chamber is provided with connecting rod (6), and the lower end of leading screw (4) is connected by screw-threaded engagement with the upper end of connecting rod (6); Inner periphery at sleeve (5) upwards is evenly equipped with 3 guide pins (14), be evenly equipped with three vertical chutes at connecting rod (6) outer round surface, every chute is divided into a section and two sections chutes of b section, wherein a section chute and connecting rod (6) axially has an angle, and b section chute is parallel to the axis of connecting rod (6); Guide pin (14) snaps onto in the chute; Termination, the lower end cylindrical of connecting rod (6) upwards be evenly equipped with three fixture blocks (6-1) week, form draw-in groove (6-2) between per two fixture blocks (6-1);

   The bottom assembly comprises Connection Block (10) and lower terminal pad (12), inner circumferential in Connection Block (10) upper cavity (10-3) is evenly equipped with three master card pieces (10-1) and forms three master card grooves (10-2), three master card pieces (10-1) and three master card grooves (10-2) respectively with connecting rod (6) in three fixture blocks (6-1) and the setting of three draw-in grooves (6-2) corresponding matching.
2. 2. the quick connection lock of joint under water according to claim 1 tightly installs, and it is characterized in that: the soffit place of described upper terminal pad (7) is equipped with guide peg (9), is provided with pilot hole (13) in position corresponding to lower terminal pad (12) upper surface.
3. 3. the quick connection lock of joint under water according to claim 1 tightly installs, it is characterized in that: the soffit place of described upper terminal pad (7) is equipped with joint (8), is provided with the pairing joint (11) corresponding with joint (8) in the position corresponding to upper surface of lower terminal pad (12).
4. 4. the quick connection lock of joint under water according to claim 1 tightly installs, and it is characterized in that: the fixture block (6-1) on described connecting rod (6) termination, lower end is monolithic construction with connecting rod (6).
5. 5. the quick connection lock of joint under water according to claim 1 tightly installs, and it is characterized in that: described master card piece (10-1) is monolithic construction with Connection Block (10).

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