Novel oil casing coupling

Abstract

The utility model belongs to the field of oil exploitation, and particularly relates to a novel oil casing coupling which comprises an oil casing coupling body. A mounting groove is formed in the bottom side of the oil casing coupling body; a clamping plate is slidably connected to the middle of the mounting groove; the bottom of the clamping plate is fixedly connected with a rack column; the middle of the rack column is slidably connected with a hollow pipe. A supporting plate is fixedly connected to the middle of the hollow pipe. The bottom of the hollow pipe is fixedly connected with a bottom plate; two groups of supporting rods are fixedly connected to the top of the supporting plate; the distance between the clamping plate and the bottom plate is adjusted by rotating the driving shaft, so that the effect of supporting the coupling part of the oil casing can be achieved, and the situation that due to the influence of the construction environment, uneven complex road sections are likely to exist on the ground, at the moment, the coupled oil casing is placed on the ground, part of the casing is prone to being in a suspended state, and damage to the oil casing is caused is prevented. And the situation that the stability and the sealing performance of the coupling are affected due to the fact that the coupling part is loosened due to uneven stress is further caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oil exploitation, concretely is a novel petroleum casing collar. BACKGROUND

[0002] The petroleum casing collar is an important component in the oil exploitation operation, and generally has threads formed on the inner wall, and when two groups of petroleum casings need to be connected, the operation can be completed by means of the collar, and the stability and sealing performance between the oil pipes can be improved by the petroleum casing collar.

[0003] After the petroleum casing collar is connected, it needs to be placed on the ground for comprehensive inspection to ensure that it is intact and has no cracks, and after the inspection, the petroleum casing can be lowered into the oil well by means of a crane, a winch, a hydraulic lifting platform or the like.

[0004] During the process of placing the petroleum casing with the connected collar on the ground for inspection, the complexity of the construction environment can easily cause uneven road sections on the ground, and these uneven road sections can easily cause some petroleum casings to be in a suspended or semi-suspended state, thereby causing uneven force distribution of the casing, which can easily cause the collar part of the petroleum casing to be loose, thereby threatening the stability and overall sealing performance of the collar. UTILITY MODEL CONTENTS

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the utility model provides a novel petroleum casing collar.

[0006] The utility model discloses a novel petroleum casing collar, which comprises a petroleum casing collar body, an installation groove is formed in the bottom side of the petroleum casing collar body, a clamping plate is slidably connected to the middle part of the installation groove, a rack column is fixedly connected to the bottom of the clamping plate, a hollow pipe is slidably connected to the middle part of the rack column, a support plate is fixedly connected to the middle part of the hollow pipe, a bottom plate is fixedly connected to the bottom of the hollow pipe, two groups of support rods are fixedly connected to the top of the support plate, hollow discs are fixedly connected to the top of the support rods, drive shafts are sleeved in the middle parts of the hollow discs, transmission gears are fixedly connected to the middle parts of the drive shafts, and rotary tables are fixedly connected to one end of the drive shafts.

[0007] Preferably, a brake gear is fixedly connected to the middle part of the drive shaft, a plurality of guide rods are fixedly connected to the middle part of the support plate, rack plates are slidably connected to the middle parts of the guide rods, a threaded sleeve is fixedly connected to the middle part of the support plate, and a threaded rod is threadedly connected to the middle part of the threaded sleeve.

[0008] Preferably, the hollow disc top is fixed with L-shaped limiting rod; the driving shaft middle part is provided with two groups of first circular sliding grooves; the L-shaped limiting rod end part and the first circular sliding groove are mutually attached.

[0009] Preferably, the rack column two sides are provided with sliding rails; the hollow pipe two side inner walls are fixed with limiting sliding grooves; the limiting sliding grooves and the sliding rails are mutually attached.

[0010] Preferably, the hollow disc middle part is provided with second circular sliding grooves; the second circular sliding grooves are rotatably connected with groups of ball bearings.

[0011] Preferably, the bottom plate four corners are slidably connected with ground nails.

[0012] Preferably, the hollow pipe one side is provided with a glass observation plate.

[0013] The utility model discloses a beneficial effect lies in:

[0014] The novel petroleum casing coupling of the utility model, through the distance adjustment between the clamping plate and the bottom plate of rotation driving shaft, can support the position of the petroleum casing coupling, prevent the influence of construction environment, the complex road section with uneven ground, place the petroleum casing with coupling on the ground, cause part casing to be in the suspended state, and then cause the loosening of the coupling position due to uneven stress, and the stability and the sealing of the coupling are influenced.

[0015] The novel petroleum casing coupling of the utility model, through the meshing of the rack plate and the brake gear by jacking, can limit the rotation of the driving shaft, prevent the rack column top from being in the heavy state, cause the sliding of the rack column to the hollow pipe bottom, and then cause the reverse rotation of the transmission gear, and the overall support performance is influenced. DRAWINGS

[0016] The drawings explained here are used to provide further understanding of the utility model, constitute a part of this application, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation to the utility model.

[0017] In the drawings:

[0018] Figure 1 It is the three-dimensional structure schematic diagram in the utility model;

[0019] Figure 2 It is the petroleum casing coupling body structure schematic diagram in the utility model;

[0020] Figure 3 It is the rack column structure schematic diagram in the utility model;

[0021] Figure 4 It is the sectional view structure schematic diagram of rack post in the utility model;

[0022] Figure 5 It is the sectional view structure schematic diagram of driving shaft in the utility model;

[0023] Figure 6 It is the hollow disc structure schematic diagram in the utility model.

[0024] In the drawing: 1, petroleum casing collar body;11, installation groove;12, rack post;13, hollow pipe;14, support plate;15, support rod;16, clamping plate;17, hollow disc;18, driving shaft;19, transmission gear;111, rotating disc;112, bottom plate;2, brake gear;21, guide rod;22, rack plate;23, threaded sleeve;24, threaded rod;3, L-shaped limiting rod;31, first circular sliding slot;4, sliding rail;41, limiting sliding slot;5, second circular sliding slot;51, ball;6, ground nail;7, glass observation plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, a new type of petroleum casing coupling includes a petroleum casing coupling body 1; the bottom side of the petroleum casing coupling body 1 is provided with a mounting groove 11; the middle part of the mounting groove 11 is slidably connected with a clamping plate 16; the bottom of the clamping plate 16 is fixedly connected with a rack column 12; the middle part of the rack column 12 is slidably connected with a hollow tube 13; the middle part of the hollow tube 13 is fixedly connected with a supporting plate 14; the bottom of the hollow tube 13 is fixedly connected with a bottom plate 112; the top of the supporting plate 14 is fixedly connected with two groups of supporting rods 15; the top of the supporting rods 15 is fixedly connected with hollow discs 17; the middle part of the hollow discs 17 is sleeved with a driving shaft 18; the middle part of the driving shaft 18 is fixedly connected with a transmission gear 19; one end of the driving shaft 18 is fixedly connected with a rotating disc 111; the transmission gear 19 is meshed with the rack column 12; when the petroleum casing coupling is completed, it needs to be placed on the ground for inspection, and when the ground is uneven, the rotating disc 111 can be rotated to rotate the driving shaft 18 in the middle part of the glass observation plate 7; the rotation of the driving shaft 18 drives the transmission gear 19 to rotate, and because the transmission gear 19 is meshed with the rack column 12, the rotation of the transmission gear 19 drives the rack column 12 to slide in the middle part of the hollow tube 13; the sliding of the rack column 12 drives the clamping plate 16 to move synchronously until the distance between the clamping plate 16 and the bottom plate 112 is adjusted to the height of the pit on the ground, the clamping plate 16 can be slid into the middle part of the mounting groove 11, at this time the petroleum casing coupling can be placed on the ground, and the bottom of the bottom plate 112 can be contacted with the pit ground, this step adjusts the distance between the clamping plate 16 and the bottom plate 112 by rotating the driving shaft 18, which can support the petroleum casing coupling part, prevent the influence of the construction environment, and prevent the uneven ground from causing the petroleum casing coupling to be placed on the ground, which can cause the casing to be in a suspended state, and then cause the coupling part to be loose due to uneven stress, which can affect the stability and sealing of the coupling.

[0027] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the brake gear 2 is fixed in the middle of the drive shaft 18; a plurality of guide rods 21 are fixed in the middle of the support plate 14; the rack plate 22 is slidably connected in the middle of the guide rod 21; the threaded sleeve 23 is fixed in the middle of the support plate 14; the threaded rod 24 is threadedly connected in the middle of the threaded sleeve 23; during operation, the movement of the drive shaft 18 drives the brake gear 2 to move synchronously, and when the height of the rack column 12 is adjusted, the threaded rod 24 is rotated to rotate in the middle of the threaded sleeve 23, and the rotation of the threaded rod 24 gradually moves to the brake gear 2, which can lift the rack plate 22 and drive the rack plate 22 to slide in the middle of the guide rod 21 until the rack plate 22 is lifted to contact and mesh with the brake gear 2. This step can limit the rotation of the drive shaft 18 by lifting the rack plate 22 to mesh with the brake gear 2, which can prevent the top of the rack column 12 from being under load, which can easily cause the rack column 12 to slide to the bottom of the hollow tube 13, thereby causing the transmission gear 19 to reverse, affecting the overall support performance.

[0028] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , the L-shaped limiting rod 3 is fixed at the top of the hollow disc 17; the first circular sliding groove 31 is formed in the middle of the drive shaft 18; the end of the L-shaped limiting rod 3 is in close contact with the first circular sliding groove 31; during operation, when the drive shaft 18 rotates, it drives the first circular sliding groove 31 to move synchronously, and the first circular sliding groove 31 slides along the end of the L-shaped limiting rod 3 during movement. This step can limit the movement track of the drive shaft 18 by the cooperation of the L-shaped limiting rod 3 and the first circular sliding groove 31, which can reduce the movement of the drive shaft 18 caused by uneven stress, thereby causing the transmission gear 19 to deviate, affecting the meshing state of the transmission gear 19 and the rack column 12.

[0029] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , the slide rail 4 is formed on both sides of the rack column 12; the limiting sliding groove 41 is fixed on the inner wall of the hollow tube 13; the limiting sliding groove 41 is in close contact with the slide rail 4; during operation, when the rack column 12 moves, it drives the slide rail 4 to move synchronously, and the slide rail 4 slides along the limiting sliding groove 41 during movement. This step can limit the sliding track of the rack column 12 by the cooperation of the slide rail 4 and the limiting sliding groove 41, which can improve the stability of the rack column 12 during sliding and improve the effect of stably supporting the oil casing coupling body 1.

[0030] As shown in Figure 6As shown, the hollow disc 17 middle part is provided with a second circular chute 5; the second circular chute 5 middle part is rotatably connected with a plurality of groups of balls 51; when the rotating drive shaft 18 rotates in the middle part of the hollow disc 17, the drive shaft 18 will contact and produce friction with the balls 51, at this time the balls 51 can rotate in the middle part of the second circular chute 5 under the action of friction, this step can reduce the friction between the drive shaft 18 and the inner wall of the hollow disc 17 through the interaction of the second circular chute 5 and the balls 51, so that the drive shaft 18 rotates more smoothly.

[0031] As shown in Figure 1 , Figure 2 the bottom plate 112 four corners are slidably connected with ground nails 6; when the bottom plate 112 is placed on the uneven ground, the ground nails 6 can be embedded in the soil, this step can improve the stability of the contact between the bottom plate 112 and the ground, so as to reduce the shaking of the bottom plate 112 due to unstable contact with the ground.

[0032] As shown in Figure 1 the hollow tube 13 is provided with a glass observation plate 7 on one side; when adjusting the height of the rack column 12, the sliding condition of the rack column 12 in the middle part of the hollow tube 13 can be observed through the glass observation plate 7, this step is to rotate the dial 111 to adjust the height of the rack column 12, the rack column 12 is easy to slide out of the hollow tube 13 and disengage from the transmission gear 19, which affects the progress of the whole work, at this time the glass observation plate 7 can be used to observe the sliding condition of the rack column 12, which can reduce the occurrence of such phenomenon.

[0033] The working principle is that when the oil casing coupling is good, it needs to be placed on the ground for inspection, and when the ground is uneven, the rotating disc 111 is rotated to rotate the driving shaft 18 in the middle of the glass observation plate 7. The rotation of the driving shaft 18 will drive the transmission gear 19 to rotate. Because the transmission gear 19 and the rack column 12 are meshed with each other, the rotation of the transmission gear 19 will drive the rack column 12 to slide in the middle of the hollow pipe 13. The sliding of the rack column 12 will drive the clamping plate 16 to move synchronously until the distance between the clamping plate 16 and the bottom plate 112 is adjusted to the height of the ground pit. At this time, the clamping plate 16 can be slid into the middle of the installation groove 11. At this time, the oil casing coupling can be placed on the ground, and the bottom of the bottom plate 112 is in contact with the ground pit. This step adjusts the distance between the clamping plate 16 and the bottom plate 112 by rotating the driving shaft 18 to support the oil casing coupling part, so as to prevent the influence of the construction environment. The complex section of the ground is prone to unevenness. At this time, the oil casing coupling is placed on the ground, which is prone to cause part of the casing to be in a suspended state, thereby causing the coupling part to loosen due to uneven stress, thereby affecting the stability and sealing of the coupling. During work, the movement of the driving shaft 18 will drive the brake gear 2 to move synchronously. When the height of the rack column 12 is adjusted, the threaded rod 24 is rotated to rotate in the middle of the threaded sleeve 23, and the rotation of the threaded rod 24 will gradually move to the brake gear 2. In this way, the rack plate 22 can be lifted and the rack plate 22 can slide in the middle of the guide rod 21. Until the rack plate 22 is lifted to contact and mesh with the brake gear 2, the step can be completed. By lifting the rack plate 22 to mesh with the brake gear 2, the driving shaft 18 can be limited to rotate, thereby preventing the top of the rack column 12 from being under stress, which is prone to cause the rack column 12 to slide to the bottom of the hollow pipe 13, thereby causing the transmission gear 19 to reverse, and affecting the overall support performance. During work, when the driving shaft 18 rotates, it will drive the first circular sliding groove 31 to move synchronously, and the first circular sliding groove 31 will slide along the end of the L-shaped limiting rod 3 during movement. This step can limit the movement track of the driving shaft 18 through the cooperation of the L-shaped limiting rod 3 and the first circular sliding groove 31, thereby reducing the possibility of the driving shaft 18 sliding forward and backward at the hollow disc 17 due to uneven stress, thereby causing the position of the transmission gear 19 to deviate, and affecting the meshing state of the transmission gear 19 and the rack column 12. During work, when the rack column 12 moves, it will drive the sliding rail 4 to move synchronously, and the sliding rail 4 will slide along the limiting sliding groove 41 during movement. This step can limit the sliding track of the rack column 12 through the cooperation of the sliding rail 4 and the limiting sliding groove 41, thereby improving the stability of the rack column 12 during sliding and improving the effect of stably supporting the oil casing coupling body 1. During work, when the driving shaft 18 is rotated to rotate in the middle of the hollow disc 17,The driving shaft 18 will be in contact with the ball 51 and generate friction, at this time under the action of friction can make the ball 51 in the second circular sliding groove 5 rotating, this step through the interaction of the second circular sliding groove 5 and the ball 51, can play the effect of reducing the friction between the driving shaft 18 and the inner wall of the hollow disc 17, so that the driving shaft 18 rotates more smoothly, when working, when the bottom plate 112 is placed on the uneven ground, the ground nail 6 can be embedded into the soil, this step through the opening of the ground nail 6 can improve the stability of the contact between the bottom plate 112 and the ground, so as to reduce the case that the bottom plate 112 is easy to shake due to unstable contact with the ground, when working, when adjusting the height of the rack column 12, the sliding condition of the rack column 12 in the middle of the hollow tube 13 can be observed through the glass observation plate 7, this step is to rotate the dial 111 to adjust the height of the rack column 12, the rack column 12 is easy to slide out of the hollow tube 13 and disengage from the transmission gear 19, which affects the progress of the whole work, at this time through the glass observation plate 7 can observe the sliding condition of the rack column 12, which can reduce the occurrence of such phenomenon.

[0034] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A novel petroleum casing coupling, comprising a petroleum casing coupling body (1); the bottom side of the petroleum casing coupling body (1) is provided with a mounting groove (11); characterized in that: The middle part of mounting groove (11) is slidably connected with a clamping plate (16); the bottom of clamping plate (16) is fixedly connected with a rack column (12); the middle part of rack column (12) is slidably connected with a hollow tube (13); the middle part of hollow tube (13) is fixedly connected with a support plate (14); the bottom of hollow tube (13) is fixedly connected with a bottom plate (112); the top of support plate (14) is fixedly connected with two groups of support rods (15); the top of support rod (15) is fixedly connected with a hollow disc (17); the middle part of hollow disc (17) is sleeved with a drive shaft (18); the middle part of drive shaft (18) is fixedly connected with a transmission gear (19); one end of drive shaft (18) is fixedly connected with a rotating disc (111); transmission gear (19) and rack column (12) are engaged with each other.

2. A new type of casing collar according to claim 1, characterized by: The middle part of drive shaft (18) is fixedly connected with a brake gear (2); the middle part of support plate (14) is fixedly connected with a plurality of guide rods (21); the middle part of guide rod (21) is slidably connected with a rack plate (22); the middle part of support plate (14) is fixedly connected with a threaded sleeve (23); the middle part of threaded sleeve (23) is threadedly connected with a threaded rod (24).

3. A new type of casing collar according to claim 1, characterized by: The top of hollow disc (17) is fixedly connected with an L-shaped limiting rod (3); the middle part of drive shaft (18) is provided with two groups of first circular sliding grooves (31); the end of L-shaped limiting rod (3) is matched with first circular sliding groove (31).

4. A new type of casing collar according to claim 1, characterized by: The both sides of rack column (12) are provided with sliding rails (4); the inner walls of both sides of hollow tube (13) are fixedly connected with limiting sliding grooves (41); limiting sliding grooves (41) and sliding rails (4) are matched with each other.

5. A new type of casing collar according to claim 1, characterized by: The middle part of hollow disc (17) is provided with a second circular sliding groove (5); the middle part of second circular sliding groove (5) is rotatably connected with a plurality of balls (51).

6. A new type of casing collar according to claim 1, characterized by: The four corners of bottom plate (112) are slidably connected with ground nails (6).

7. A new type of casing collar according to claim 1, characterized by: One side of hollow tube (13) is provided with a glass observation plate (7).

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