Multifunctional sucker rod protection device

Abstract

The invention relates to the technical field of oil field oil extraction equipment, and discloses a multifunctional sucker rod protection device which comprises a lower body. The anti-falling assembly is used for preventing the broken polish rod from falling; the reinforcing assembly is used for reinforcing the broken polish rod; and the liquid coating assembly is used for supplementing glue when the polish rod is broken and supplementing a lubricant when the polish rod is stuck in a well. Through the arrangement of the anti-falling assembly, when the polish rod is broken, the second square head clamp can drive the polish rod to fall on the lower body, the polish rod is prevented from falling, and the lower body can drive the polish rod to continue oil pumping operation and wait for a worker to stop for maintenance; when the polish rod is clamped in an oil well and cannot move downwards, the lower body can be separated from the upper body and slide up and down on the polish rod, so that the lower body can maintain the motion trail of the horse head and the two hair braids, and the situation that the horse head and the hair braids forcibly drive the polish rod to move downwards, and consequently the polish rod is deformed and fractured is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of oil field production equipment, and in particular to a multifunctional sucker rod protection device. Background Art

[0002] An oil pump is a machine for extracting oil, commonly known as a "bowing machine". It uses pressure to pump oil out of the well and is the most important lifting equipment in a rod pumping system. The donkey head is a key component of the oil pump. A wire rope hanger is usually installed on the donkey head, and the hanger is connected to the light rod through a light rod clamp and a lifting ring. These components ensure that the light rod can be stably suspended on the donkey head and can effectively transmit power during the oil pumping process. When the donkey head moves back and forth up and down under the drive of the oil pump, it drives the light rod to move back and forth up and down. The light rod can drive the sucker rod and the oil pump plunger to reciprocate, thereby achieving the purpose of pumping oil.

[0003] However, the prior art has the following problems: 1. When the oil pump rod is in reciprocating motion, the contact area between the rod and the tooth is under concentrated stress. After long-term use, cracking and breakage may occur. The broken rod falling into the oil well will cause a certain degree of impact on the wellhead, which may cause accidents and generate large economic losses.

[0004] 2. When the polished rod is stuck in the oil well due to changes in the oil well load, the donkey head continues to run in a short period of time, the rope hanger will drive the top of the polished rod downward, and the bottom of the polished rod is stuck in the well, which will cause the surface of the polished rod to deform or break, resulting in economic losses and greater safety hazards. Summary of the invention

[0005] The purpose of the present invention is to provide a multifunctional sucker rod protection device in order to solve the above-mentioned problems and overcome the defects of the prior art, as described in detail below.

[0006] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a multifunctional sucker rod protection device, comprising: a lower body, on which two clamping clips are installed by bolts, and on which a polished rod and two hair braids are arranged; an anti-falling component, used to prevent the broken polished rod from falling; a reinforcement component, used to reinforce the broken polished rod; a coating component, used to replenish glue when the polished rod is broken and replenish lubricant when the polished rod is stuck in the well; the anti-falling component is arranged on the lower body, the reinforcement component is arranged inside the lower body, and the coating component is arranged on the lower body; the anti-falling component comprises an upper body, the bottom of the upper body contacts the lower body, a first square head clip and a second square head clip are connected to the polished rod by bolts, a plurality of side baffles are rotatably installed on both sides of the upper body, rear baffles are rotatably installed on the rear sides of the lower body and the upper body, rollers are rotatably installed on the inner wall of the upper body, gears are connected to the two ends of the rollers, two inner sliders are slidably installed on the inner wall of the upper body, two connecting rods are hinged on the inner slider, and two anti-sliding blocks are slidably installed on the inner wall of the upper body.

[0007] Preferably, the first square head card is connected to the top of the upper body, and the second square head card is located between the gap formed by the lower body and the upper body.

[0008] Preferably, a lower rod hole is provided at the central portion of the lower body, lower hanging rope holes are provided on both sides of the lower body, an upper rod hole is provided at the central portion of the upper body, upper hanging rope holes are provided on both sides of the upper body, the two upper hanging rope holes are respectively located above the two lower hanging rope holes, the upper rod hole is located above the lower rod hole, the bare rod is located in the lower rod hole and the upper rod hole, the two braids are respectively located in the two lower hanging rope holes and the two upper hanging rope holes, the two clamping cards are respectively in contact with the two braids, and the contact parts of the lower body and the upper body are both arc surfaces.

[0009] Preferably, a rack is provided on the inner slider, and the two racks on the two inner sliders are respectively meshed with two gears, and the roller is in contact with the light rod. The two connecting rods on one of the inner sliders are hinged to one of the anti-sliding blocks, and the two connecting rods on the other inner slider are hinged to the other anti-sliding block. The two anti-sliding blocks are respectively located on both sides of the light rod, and the two anti-sliding blocks are both located in the upper rod hole.

[0010] Preferably, the reinforcement assembly includes two pressure rods, both of which are slidably mounted on the inner wall of the lower body, and two clamping blocks are rotatably mounted on the inner wall of the lower body, the clamping blocks are connected with protrusions, and both of the clamping blocks are located in the lower rod holes.

[0011] Preferably, the two pressure rods are located below the No. 2 square head clamp, and a slope is provided on the pressure rod. The two protrusions are in contact with the slopes of the two pressure rods respectively. The No. 2 square head clamp is in contact with the two pressure rods when moving, and the two clamping blocks are in contact with the light rod when moving.

[0012] Preferably, the reinforcement component also includes two buttons, both of which are installed inside the lower body, and a signal light and an alarm are installed on the outer wall of the lower body. One of the buttons is connected to the signal light through a wire, and the other button is connected to the alarm through a wire, and the two pressure rods contact the two buttons respectively during movement.

[0013] Preferably, the coating assembly includes a lubricant bag and a glue bag, and two slots are provided on the lower body, and the two slots are respectively located on both sides of the light rod, and the lubricant bag and the glue bag are respectively installed in the two slots of the lower body, and the lubricant bag is connected to a pull plate, and two lower magnetic rods are connected to the pull plate, and two upper magnetic rods are connected to the bottom of the upper body, and the two lower magnetic rods are respectively magnetically connected to the two upper magnetic rods, and a No. 1 coating ring is installed on the inner wall of the bottom of the lower body, and the No. 1 coating ring is located at the bottom of the lower rod hole, and a No. 1 liquid pipe is connected between the No. 1 coating ring and the lubricant bag, and the No. 1 coating ring is in contact with the light rod.

[0014] Preferably, a pressure plate is connected to the glue bag, and the pressure plate is connected to one of the pressure rods. A No. 2 coating ring is installed on the top inner wall of the lower body, and the No. 2 coating ring is located at the top of the lower rod hole. A No. 2 liquid tube is connected between the No. 2 coating ring and the glue bag, and the No. 2 coating ring is in contact with the bare rod.

[0015] The beneficial effects are: 1. The multifunctional sucker rod protection device, through the setting of the anti-falling component, when the light rod breaks, the second square head clamp can drive the light rod to fall on the lower body, to prevent the light rod from falling and causing the wellhead to be damaged. After the wellhead is damaged, it may cause a blowout, resulting in waste of resources and environmental pollution. The lower body can drive the light rod to continue pumping oil and wait for the staff to shut down for maintenance, to avoid damage to the equipment and the wellhead due to failure to shut down in the first time; when the light rod is stuck in the oil well and cannot move downward, the lower body can be separated from the upper body and slide up and down on the light rod, so that the lower body can maintain the movement trajectory of the donkey head and the two braids, to avoid the donkey head and the braids forcibly driving the light rod to move downward and causing deformation and breakage of the light rod; through the setting of the two anti-slide blocks, when the lower body is separated from the upper body, the two anti-slide blocks can prevent the upper body from falling, to prevent the upper body from falling and hitting the lower body, causing certain damage.

[0016] 2. The multifunctional sucker rod protection device, through the setting of the reinforcement component, enables the two clamping blocks to automatically clamp the polished rod after the polished rod breaks, disperse the stress on the polished rod, and protect the position of the polished rod below the No. 2 square head clamp, so as to avoid the stress concentration on the No. 2 square head clamp and the second fracture of the polished rod after the first fracture and fall; through the setting of the signal light and the alarm, after the polished rod breaks, the signal light and the alarm are directly activated to remind the staff to stop the machine for maintenance in time.

[0017] 3. The multifunctional sucker rod protection device, through the setting of the coating assembly, enables the No. 1 coating ring to squeeze out lubricant when the polished rod is stuck in the well, lubricates the polished rod and the lower body, reduces the friction generated when the lower body moves up and down on the polished rod, and further improves the protection effect of the polished rod; through the setting of the No. 2 coating ring, when the polished rod is broken, the No. 2 coating ring can squeeze out glue, and after the glue penetrates into the space between the polished rod and the two clamping blocks, the clamping and fixing effect of the polished rod is further improved. 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the anti-falling component of the present invention; Figure 3 It is a schematic diagram of the upper body structure of the present invention; Figure 4 It is a schematic diagram of the structure of the slider of the present invention; Figure 5 It is a schematic diagram of the anti-sliding block structure of the present invention; Figure 6 It is a schematic diagram of the structure of the reinforcement assembly of the present invention; Figure 7 It is a schematic diagram of the compression rod structure of the present invention; Figure 8 is a schematic diagram of the bump structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the coating liquid assembly of the present invention; Fig.10 is a schematic diagram of the structure of the lubricant sac of the present invention; Fig.11 It is a schematic diagram of the structure of the glue bag of the present invention.

[0020] The reference numerals are as follows: 1. lower body; 11. lower rod hole; 12. lower hanging rope hole; 2. clamping card; 3. anti-falling assembly; 31. upper body; 32. square head card No. 1; 33. square head card No. 2; 34. side stopper; 35. rear stopper; 36. roller; 37. gear; 38. inner slider; 39. connecting rod; 310. anti-sliding block; 311. upper rod hole; 312. upper hanging rope hole; 4. reinforcement Assembly; 41, pressure rod; 42, clamping block; 43, bump; 44, button; 45, signal light; 46, alarm; 5, coating assembly; 51, lubricant bag; 52, pull plate; 53, lower magnetic rod; 54, upper magnetic rod; 55, No. 1 liquid tube; 56, No. 1 coating ring; 57, glue bag; 58, pressure plate; 59, No. 2 liquid tube; 510, No. 2 coating ring; 6, bare rod; 7, hair braid. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Example 1

[0023] See also Figure 1 - Figure 5A multifunctional sucker rod protection device comprises: a lower body 1, on which two clamping cards 2 are installed by bolts, and a polished rod 6 and two braids 7 are arranged on the lower body 1; an anti-falling component 3 is used to prevent the broken polished rod 6 from falling, and the anti-falling component 3 is arranged on the lower body 1, and the anti-falling component 3 comprises an upper body 31, the bottom of the upper body 31 contacts the lower body 1, and a first square head card 32 and a second square head card 33 are connected to the polished rod 6 by bolts, the first square head card 32 is connected to the top of the upper body 31, and the second square head card 33 is located between the gap formed by the lower body 1 and the upper body 31, and the center of the lower body 1 is arranged The lower body 1 has a lower rod hole 11, lower hanging rope holes 12 are respectively arranged on both sides of the lower body 1, an upper rod hole 311 is arranged at the central part of the upper body 31, upper hanging rope holes 312 are respectively arranged on both sides of the upper body 31, the two upper hanging rope holes 312 are respectively located above the two lower hanging rope holes 12, the upper rod hole 311 is located above the lower rod hole 11, the bare rod 6 is located in the lower rod hole 11 and the upper rod hole 311, the two braids 7 are respectively located in the two lower hanging rope holes 12 and the two upper hanging rope holes 312, the two clamping cards 2 are respectively in contact with the two braids 7, the two braids 7 are respectively fixed in the two lower hanging rope holes 12 by the two clamping cards 2, and the bare rod 6 is broken. After the crack occurs, it falls. Since the second square head clamp 33 is still connected to the light rod 6, after the second square head clamp 33 falls to the top of the lower body 1, it stops falling due to the obstruction of the lower body 1, so that the second square head clamp 33 can bring the light rod 6 to hover on the lower body 1, preventing the light rod 6 from falling into the well. In this state, since the two braids 7 are connected to the lower body 1, the two braids 7 can drive the light rod 6 to continue to reciprocate up and down through the lower body 1, and maintain the working state in a short time, waiting for the staff to shut down for maintenance; when the light rod 6 is stuck in the well, since the two braids 7 can slide in the two upper hanging rope holes 312, the two braids The braid 7 can drive the lower body 1 to continue to move downward, and the upper body 31 follows the polished rod 6 to pause and move downward. The upper body 31 and the lower body 1 are separately set. After the lower body 1 is separated from the upper body 31, the lower body 1 can maintain the normal movement trajectory of the two hair braids 7, so that the two hair braids 7 will not cause pressure on the polished rod 6 when moving downward, and the polished rod 6 is prevented from deforming. The contact parts of the lower body 1 and the upper body 31 are all set with arc surfaces. After the lower body 1 and the upper body 31 contact, they can be reset along the arc surface, so as to maintain the accuracy of docking. In this state, the normal operation of the donkey head and the two hair braids 7 can be maintained, waiting for the staff to shut down for maintenance;A plurality of side baffles 34 are rotatably mounted on both sides of the upper body 31, and the plurality of side baffles 34 can prevent the hair braids 7 from falling off. Rear baffles 35 are rotatably mounted on the rear sides of the lower body 1 and the upper body 31, and the two rear baffles 35 can prevent the light rod 6 from falling off. A roller 36 is rotatably mounted on the inner wall of the upper body 31, and gears 37 are connected to the two ends of the roller 36. Two inner sliders 38 are slidably mounted on the inner wall of the upper body 31, and two connecting rods 39 are hinged on the inner slider 38. Two anti-sliding blocks 310 are slidably mounted on the inner wall of the upper body 31, and a rack is provided on the inner slider 38. The two inner sliders 38 have two connecting rods 39 hinged on them. The racks are respectively meshed with the two gears 37, the roller 36 is in contact with the light rod 6, and there is a large friction force between the roller 36 and the light rod 6. When the roller 36 moves downward, it rotates by using the friction force of the light rod 6. The two connecting rods 39 on one of the inner sliders 38 are hinged to one of the anti-sliding blocks 310, and the two connecting rods 39 on the other inner slider 38 are hinged to the other anti-sliding block 310. The two anti-sliding blocks 310 are respectively located on both sides of the light rod 6. The two anti-sliding blocks 310 are both located in the upper rod hole 311. When the two gears 37 rotate, the two inner sliders 38 are driven to move upward through the two racks. When the inner slide block 38 moves upward, the two connecting rods 39 drive the anti-sliding block 310 to move toward the direction close to the polished rod 6, so that the two anti-sliding blocks 310 clamp the polished rod 6, thereby preventing the upper body 31 from falling. The longer the sliding distance of the roller 36 on the polished rod 6, the greater the clamping force of the two anti-sliding blocks 310 on the polished rod 6, and the upper body 31 is fixed more tightly; through the setting of the anti-falling component 3, when the polished rod 6 breaks, the second square head clamp 33 can drive the polished rod 6 to fall on the lower body 1 to prevent the polished rod 6 from falling, and the lower body 1 can drive the polished rod 6 to continue the oil pumping operation, waiting for the staff to stop the machine for maintenance Repair, to avoid equipment damage caused by not stopping the machine in time; when the polished rod 6 is stuck in the oil well and cannot move downward, the lower body 1 can be separated from the upper body 31 and slide up and down on the polished rod 6, so that the lower body 1 can maintain the movement trajectory of the donkey head and the two hair braids 7, to avoid the donkey head and the hair braids 7 forcibly driving the polished rod 6 to move downward and causing the polished rod 6 to deform and break; through the setting of the two anti-slide blocks 310, when the lower body 1 is separated from the upper body 31, the two anti-slide blocks 310 can prevent the upper body 31 from falling, and prevent the upper body 31 from falling and hitting the lower body 1, causing certain damage. ;

[0024] For further information, see Figure 6 - Figure 8, a reinforcement component 4 is used to reinforce the broken light rod 6. The reinforcement component 4 is arranged inside the lower body 1. The reinforcement component 4 includes two pressure rods 41. The two pressure rods 41 are slidably mounted on the inner wall of the lower body 1. Two clamping blocks 42 are rotatably mounted on the inner wall of the lower body 1. The clamping blocks 42 are connected with protrusions 43. The two clamping blocks 42 are both located in the lower rod hole 11. The two pressure rods 41 are both located below the second square head clamp 33. An inclined surface is arranged on the pressure rod 41. The two protrusions 43 are respectively in contact with the inclined surfaces of the two pressure rods 41. The second square head clamp 33 is in contact with the two inclined surfaces when moving. When the second square head clamp 33 falls, the two pressure rods 41 are pressed downward, and the two clamping blocks 42 are in contact with the polished rod 6 during movement. When the two pressure rods 41 move downward, the two protrusions 43 are driven by the inclined surfaces to move toward the direction close to the polished rod 6, and the two protrusions 43 drive the two clamping blocks 42 to rotate toward the position close to the polished rod 6, so that the two clamping blocks 42 clamp the polished rod 6. The clamping and fixing of the polished rod 6 by the two clamping blocks 42 can play a certain protective role, clamp the polished rod 6, disperse the stress on the polished rod 6, and avoid the polished rod 6 before the machine is shut down for maintenance. 6 broke for the second time and fell; the reinforcement component 4 also includes two buttons 44, both of which are installed inside the lower body 1, and the outer wall of the lower body 1 is installed with a signal light 45 and an alarm 46, one of the buttons 44 is connected to the signal light 45 through a wire, and the other button 44 is connected to the alarm 46 through a wire, and the two pressure rods 41 are respectively in contact with the two buttons 44 during the movement, and the two pressure rods 41 press the two buttons 44 when they move downward to the end point, and the two buttons 44 respectively start the signal light 45 and the alarm 46 to give a fault warning. The reinforcement assembly 4 is provided so that after the polished rod 6 breaks, the two clamping blocks 42 can automatically clamp the polished rod 6, disperse the stress on the polished rod 6, and protect the polished rod 6 below the second square head clamp 33, so as to avoid the stress concentration on the second square head clamp 33 and the second fracture of the polished rod 6 after the first fracture and fall; the signal light 45 and the alarm 46 are provided so that after the polished rod 6 breaks, the signal light 45 and the alarm 46 are directly activated to remind the staff to stop the machine for maintenance in time.

[0025] Further, see Fig. 9 - Fig.11The coating component 5 is used to replenish glue when the polished rod 6 breaks and replenish lubricant when the polished rod 6 is stuck in the well. The coating component 5 is arranged on the lower body 1. The coating component 5 includes a lubricant bag 51 and a glue bag 57. The lubricant bag 51 is filled with lubricant. Two notches are arranged on the lower body 1. The two notches are respectively located on both sides of the polished rod 6. The lubricant bag 51 and the glue bag 57 are respectively installed in the two notches of the lower body 1. The lubricant bag 51 is connected to a pull plate 52. The pull plate 52 is connected to two lower magnetic rods 53. The bottom of the upper body 31 is connected to two upper magnetic rods 54. The two lower magnetic rods 53 are respectively magnetically connected to the two upper magnetic rods 54. When the lower body 1 is separated from the upper body 31, the lower body 1 drives the lubricant bag 51 to move. 1 moves downward, the two upper magnetic bars 54 pull the pull plate 52 through the two lower magnetic bars 53, so that the pull plate 52 cannot move downward temporarily, and a No. 1 coating ring 56 is installed on the bottom inner wall of the lower body 1. The No. 1 coating ring 56 is located at the bottom of the lower rod hole 11. A No. 1 liquid pipe 55 is connected between the No. 1 coating ring 56 and the lubricant bag 51. The No. 1 coating ring 56 contacts the light rod 6. The lubricant bag 51 is squeezed by the pulling plate 52 in the process of continuing to move downward, so that the lubricant in the lubricant bag 51 is transported to the No. 1 coating ring 56 through the No. 1 liquid pipe 55. The No. 1 coating ring 56 squeezes the lubricant and applies it between the light rod 6 and the lower rod hole 11. The lower body 1 can obtain a certain lubrication effect in the process of sliding down, which further reduces the lower body 1 The friction force caused to the polished rod 6 when sliding down plays a role in protecting the polished rod 6 and the lower body 1; the glue bag 57 is filled with glue, and a pressure plate 58 is connected to the glue bag 57, and the pressure plate 58 is connected to one of the pressure rods 41. A No. 2 coating ring 510 is installed on the top inner wall of the lower body 1, and the No. 2 coating ring 510 is located at the top of the lower rod hole 11. A No. 2 liquid pipe 59 is connected between the No. 2 coating ring 510 and the glue bag 57. The No. 2 coating ring 510 is in contact with the polished rod 6. When the pressure plate 58 moves downward, the glue bag 57 is squeezed, so that the glue bag 57 transports the glue to the No. 2 coating ring 510 through the No. 2 liquid pipe 59, and the No. 2 coating ring 510 squeezes out the glue, and the glue penetrates into the gap between the polished rod 6 and the lower rod hole 11 and the two clamps. The contact position of the two clamping blocks 42, after the contact parts of the two clamping blocks 42 and the light rod 6 are infiltrated with glue, can further enhance the clamping and fixing effect of the two clamping blocks 42 on the light rod 6. During maintenance, the staff uses a glue remover to remove the glue. Through the arrangement of the coating assembly 5, when the light rod 6 is stuck in the well, the No. 1 coating ring 56 can squeeze out the lubricant to lubricate the light rod 6 and the lower body 1, thereby reducing the friction generated when the lower body 1 moves up and down on the light rod 6, and further enhancing the protection effect on the light rod 6. Through the arrangement of the No. 2 coating ring 510, when the light rod 6 is broken, the No. 2 coating ring 510 can squeeze out the glue, and after the glue infiltrates between the light rod 6 and the two clamping blocks 42, the clamping and fixing effect on the light rod 6 is further enhanced.

[0026] With the above structure, the working principle of this case is that the staff puts the lower body 1 and the upper body 31 on the light rod 6 from the rear side of the lower body 1 and the upper body 31, so that the light rod 6 is located in the lower rod hole 11 and the upper rod hole 311, and fixes the No. 1 square head clamp 32 on the light rod 6 by screws, and fixes the two braids 7 in the two lower hanging rope holes 12 respectively by two clamping clamps 2, and tightens the two clamping clamps 2 with screws to clamp and tighten the two braids 7. The upper parts of the two braids 7 are located in the two upper hanging rope holes 312, and the multiple side baffles 34 are rotated. After the side baffles 34 are rotated into place, they can be fixed to the upper body 31 with screws. The multiple side baffles 34 can prevent the braids 7 from falling off, and the two rear baffles 35 are rotated. The rear baffles 35 After the polished rod 6 is rotated into place, it can be fixed with screws. The two rear stoppers 35 can prevent the polished rod 6 from falling off. The staff fixes the No. 2 square head clamp 33 on the polished rod 6 with screws. The staff adjusts the No. 2 square head clamp 33 to the gap between the upper body 31 and the lower body 1 so that the No. 2 square head clamp 33 is located above the two pressure rods 41. At this time, the installation is completed and the oil pumping operation can be carried out; when the polished rod 6 breaks, since the stress concentration position of the polished rod 6 is located at the No. 1 square head clamp 32, the position where the polished rod 6 breaks is usually located below the No. 1 square head clamp 32. After the polished rod 6 breaks, it falls. Since the No. 2 square head clamp 33 is still connected to the polished rod 6, after the No. 2 square head clamp 33 falls to the top of the lower body 1, due to the blocking of the lower body 1 The second square head clamp 33 can bring the light rod 6 to suspend on the lower body 1 to prevent the light rod 6 from falling into the well. In this state, since the two braids 7 are connected to the lower body 1, the two braids 7 can drive the light rod 6 to continue to reciprocate up and down through the lower body 1, and maintain the working state in a short time, waiting for the staff to shut down for maintenance. When the light rod 6 is stuck in the well, the two braids 7 can slide in the two upper hanging rope holes 312, so that the two braids 7 can drive the lower body 1 to continue to move downward. At this time, the lower body 1 slides downward on the light rod 6, and the upper body 31 is fixed to the top of the light rod 6 by the first square head clamp 32, and the first square head clamp 32 is connected to the upper body 31, so that The upper body 31 follows the polished rod 6 and pauses to move downward. The upper body 31 and the lower body 1 are split and can be separated. After the lower body 1 is separated from the upper body 31, the lower body 1 can maintain the normal movement trajectory of the two braids 7, so that the two braids 7 will not cause pressure on the polished rod 6 when moving downward, thereby avoiding deformation of the polished rod 6. When the two braids 7 drive the lower body 1 to move upward, the lower body 1 contacts the upper body 31 again. Since the contact and fitting parts of the lower body 1 and the upper body 31 are both arranged on an arc surface, the lower body 1 and the upper body 31 can be reset along the arc surface after contact, thereby maintaining the accuracy of docking. In this state, the normal operation of the donkey head and the two braids 7 can be maintained, waiting for the staff to shut down for maintenance;When the light rod 6 is stuck in the well, after the lower body 1 is separated from the upper body 31, the upper body 31 generates a certain downward pulling force on the second square head clamp 33, so that the connection between the upper body 31 and the second square head clamp 33 is subjected to a certain pulling force. Since the second square head clamp 33 is configured to be removable and replaceable, the pulling force that the connection between the two can withstand is limited. After long-term use, due to wear of the connection part, the second square head clamp 33 and the upper body 31 may be disconnected. At this time, the upper body 31 falls down. Since the roller 36 is in contact with the light rod 6 and there is a large friction between the roller 36 and the light rod 6, the roller 36 uses the friction of the light rod 6 to generate When the roller 36 rotates, the two gears 37 are driven to rotate. The inner slider 38 is limited by the upper body 31 and can only move up and down. The anti-sliding block 310 is limited by the upper body 31 and can only move left and right. When the two gears 37 rotate, the two inner sliders 38 are driven to move upward through the two racks respectively. When the inner slider 38 moves upward, the anti-sliding block 310 is driven to move toward the direction close to the light rod 6 through the two connecting rods 39, so that the two anti-sliding blocks 310 clamp the light rod 6, thereby preventing the upper body 31 from falling. The longer the sliding distance of the roller 36 on the light rod 6 is, the greater the clamping force of the two anti-sliding blocks 310 on the light rod 6 is, and the upper body 31 is fixed. When installing the No. 1 square head clamp 32, the staff can first move the upper body 31 downward on the light rod 6 for a distance, so that the roller 36 and the two anti-slide blocks 310 clamp the light rod 6, and then install the No. 1 square head clamp 32. After the light rod 6 is stuck in the well, the two anti-slide blocks 310 can share the force exerted on the No. 1 square head clamp 32, thereby reducing the probability of the upper body 31 falling off. Even if the upper body 31 falls off, the two anti-slide blocks 310 can prevent the upper body 31 from sliding down. By setting the anti-falling component 3, when the light rod 6 breaks, the No. 2 square head clamp 33 can drive the light rod 6 to fall on the lower body 1 to prevent the light rod 6 from falling, and the lower body 1 can drive the light rod 6 to fall on the lower body 1. 6 continues to pump oil and waits for the staff to stop the machine for maintenance, so as to avoid equipment damage caused by not stopping the machine in time; when the polished rod 6 is stuck in the oil well and cannot move downward, the lower body 1 can be separated from the upper body 31 and slide up and down on the polished rod 6, so that the lower body 1 can maintain the movement trajectory of the donkey head and the two hair braids 7, and avoid the donkey head and the hair braids 7 forcibly driving the polished rod 6 to move downward and cause the polished rod 6 to deform and break; through the setting of the two anti-slide blocks 310, when the lower body 1 is separated from the upper body 31, the two anti-slide blocks 310 can prevent the upper body 31 from falling, and avoid the upper body 31 from falling and hitting the lower body 1, causing certain damage. ;

[0027] When the polished rod 6 breaks, the second square head clamp 33 presses the two pressure rods 41 downward when falling, so that the two pressure rods 41 move downward. When the two pressure rods 41 move downward, they respectively drive the two protrusions 43 to move in the direction close to the polished rod 6 through the inclined surface. The two protrusions 43 drive the two clamping blocks 42 to rotate toward the position close to the polished rod 6, so that the two clamping blocks 42 clamp the polished rod 6. Since the polished rod 6 generates a large impact force at the moment of falling, the connection part between the polished rod 6 and the second square head clamp 33 may be damaged to a certain extent. The clamping and fixing of the polished rod 6 by the two clamping blocks 42 can play a certain protective role, clamp the polished rod 6, disperse the stress on the polished rod 6, and avoid the second breakage of the polished rod 6 before the machine is shut down for maintenance. Falling; when the two pressure rods 41 move downward to the end point, the two buttons 44 are pressed down, and the two buttons 44 respectively start the signal light 45 and the alarm 46 to remind the fault, which is convenient for the staff to find the fault in time and stop the machine for maintenance; through the setting of the reinforcement component 4, after the light rod 6 breaks, the two clamping blocks 42 can automatically clamp the light rod 6, disperse the stress on the light rod 6, and protect the position of the light rod 6 below the second square head clamp 33, so as to avoid the stress concentration on the second square head clamp 33 and the second break of the light rod 6 after the first break and fall; through the setting of the signal light 45 and the alarm 46, after the light rod 6 breaks, the signal light 45 and the alarm 46 are directly started, reminding the staff to stop the machine for maintenance in time.

[0028] The lubricant bag 51 is filled with lubricant. When the lower body 1 is separated from the upper body 31, the lower body 1 drives the lubricant bag 51 to move downward, and the lubricant bag 51 drives the two lower magnetic bars 53 to move downward through the pull plate 52. Since the two upper magnetic bars 54 and the two lower magnetic bars 53 are temporarily magnetically connected, the two upper magnetic bars 54 pull the pull plate 52 through the two lower magnetic bars 53, so that the pull plate 52 cannot move downward temporarily. The lubricant bag 51 is squeezed by the pull plate 52 during the process of continuing to move downward, so that the lubricant in the lubricant bag 51 passes through a The lubricant is then transported to the first coating ring 56 through the No. 1 liquid pipe 55. The first coating ring 56 squeezes out the lubricant and applies it between the light rod 6 and the lower rod hole 11. When the lubricant bag 51 is squeezed into place, it drives the pull plate 52 to continue to move downward, so that the two lower magnetic rods 53 are disconnected from the two upper magnetic rods 54 due to the large pulling force. The lower body 1 can obtain a certain lubrication effect during the sliding process, further reducing the friction force caused by the lower body 1 on the light rod 6 when it slides down, thereby protecting the light rod 6 and the lower body 1; the glue bag 57 is filled with glue. When the light rod 6 breaks, When one of the pressure rods 41 moves downward, it drives the pressure plate 58 to move downward. When the pressure plate 58 moves downward, it squeezes the glue bag 57, so that the glue bag 57 conveys the glue to the second coating ring 510 through the second liquid pipe 59. The second coating ring 510 squeezes out the glue, and the glue penetrates into the contact position between the polished rod 6 and the two clamping blocks 42 through the gap between the polished rod 6 and the lower rod hole 11. The glue adopts quick-drying glue for metal. After the contact position between the two clamping blocks 42 and the polished rod 6 penetrates into the glue, the clamping and fixing effect of the two clamping blocks 42 on the polished rod 6 can be further improved. When the polished rod 6 is broken, the staff uses a glue remover to remove the glue; through the setting of the coating component 5, when the polished rod 6 is stuck in the well, the No. 1 coating ring 56 can squeeze out the lubricant to lubricate the polished rod 6 and the lower body 1, thereby reducing the friction generated when the lower body 1 moves up and down on the polished rod 6, and further improving the protection effect of the polished rod 6; through the setting of the No. 2 coating ring 510, when the polished rod 6 is broken, the No. 2 coating ring 510 can squeeze out the glue, and after the glue penetrates into the space between the polished rod 6 and the two clamping blocks 42, the clamping and fixing effect of the polished rod 6 is further improved.

[0029] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multifunctional sucker rod protection device, characterized in that: include: A lower body (1), two clamping clips (2) being mounted on the lower body (1) by means of bolts, and a bare rod (6) and two hair braids (7) being arranged on the lower body (1); An anti-falling component (3) for preventing the broken bare rod (6) from falling; A reinforcement component (4) used to reinforce the broken bare rod (6); A coating component (5) is used to replenish glue when the polished rod (6) is broken and replenish lubricant when the polished rod (6) is stuck in the well; The anti-falling component (3) is arranged on the lower body (1), the reinforcing component (4) is arranged inside the lower body (1), and the coating component (5) is arranged on the lower body (1); The anti-falling component (3) comprises an upper body (31), the bottom of the upper body (31) contacts the lower body (1), a first square head clamp (32) and a second square head clamp (33) are connected to the bare rod (6) by bolts, a plurality of side blocking rods (34) are rotatably mounted on both sides of the upper body (31), rear blocking rods (35) are rotatably mounted on the rear sides of the lower body (1) and the upper body (31), a roller (36) is rotatably mounted on the inner wall of the upper body (31), and gears (37) are connected to the two ends of the roller (36), two inner sliding blocks (38) are slidably mounted on the inner wall of the upper body (31), two connecting rods (39) are hinged on the inner sliding block (38), and two anti-sliding blocks (310) are slidably mounted on the inner wall of the upper body (31).

2. A multifunctional sucker rod protection device according to claim 1, characterized in that: The first square head clamp (32) is connected to the top of the upper body (31), and the second square head clamp (33) is located between the gap formed by the lower body (1) and the upper body (31).

3. A multifunctional sucker rod protection device according to claim 2, characterized in that: The lower body (1) is provided with a lower rod hole (11) at the center, and lower hanging rope holes (12) are respectively provided on both sides of the lower body (1). The upper body (31) is provided with an upper rod hole (311) at the center, and upper hanging rope holes (312) are respectively provided on both sides of the upper body (31). The two upper hanging rope holes (312) are respectively located above the two lower hanging rope holes (12), and the upper rod hole (311) is located above the lower rod hole (11). The bare rod (6) is located in the lower rod hole (11) and the upper rod hole (311), and the two hair braids (7) are respectively located in the two lower hanging rope holes (12) and the two upper hanging rope holes (312). The two clamping cards (2) are respectively in contact with the two hair braids (7), and the contact parts of the lower body (1) and the upper body (31) are both arranged in arc surfaces.

4. A multifunctional sucker rod protection device according to claim 3, characterized in that: The inner slider (38) is provided with a rack, the two racks on the two inner sliders (38) are respectively meshed with the two gears (37), the roller (36) is in contact with the light rod (6), the two connecting rods (39) on one of the inner sliders (38) are hinged to one of the anti-sliding blocks (310), the two connecting rods (39) on the other inner slider (38) are hinged to the other anti-sliding block (310), the two anti-sliding blocks (310) are respectively located on both sides of the light rod (6), and the two anti-sliding blocks (310) are both located in the upper rod hole (311).

5. A multifunctional sucker rod protection device according to claim 4, characterized in that: The reinforcement assembly (4) comprises two pressure rods (41), the two pressure rods (41) are slidably mounted on the inner wall of the lower body (1), the inner wall of the lower body (1) is rotatably mounted with two clamping blocks (42), the clamping blocks (42) are connected with protrusions (43), and the two clamping blocks (42) are located in the lower rod hole (11).

6. A multifunctional sucker rod protection device according to claim 5, characterized in that: The two pressure rods (41) are both located below the second square head clamp (33); the pressure rod (41) is provided with an inclined surface; the two protrusions (43) respectively contact the inclined surfaces of the two pressure rods (41); the second square head clamp (33) contacts the two pressure rods (41) when moving; and the two clamping blocks (42) contact the light rod (6) when moving.

7. A multifunctional sucker rod protection device according to claim 6, characterized in that: The reinforcement component (4) further comprises two buttons (44), both of which are mounted inside the lower body (1); a signal light (45) and an alarm (46) are mounted on the outer wall of the lower body (1); one of the buttons (44) is connected to the signal light (45) via a wire, and the other button (44) is connected to the alarm (46) via a wire; the two pressure rods (41) are in contact with the two buttons (44) respectively during movement.

8. A multifunctional sucker rod protection device according to claim 7, characterized in that: The coating component (5) comprises a lubricant bag (51) and a glue bag (57). The lower body (1) is provided with two notches, the two notches are respectively located on both sides of the polished rod (6). The lubricant bag (51) and the glue bag (57) are respectively installed in the two notches of the lower body (1). The lubricant bag (51) is connected to a pull plate (52), the pull plate (52) is connected to two lower magnetic rods (53), the bottom of the upper body (31) is connected to two upper magnetic rods (54), the two lower magnetic rods (53) are respectively magnetically connected to the two upper magnetic rods (54), and a coating ring (56) is installed on the inner wall of the bottom of the lower body (1). The coating ring (56) is located at the bottom of the lower rod hole (11). A liquid pipe (55) is connected between the coating ring (56) and the lubricant bag (51), and the coating ring (56) is in contact with the polished rod (6).

9. A multifunctional sucker rod protection device according to claim 8, characterized in that: The glue bag (57) is connected to a pressure plate (58), and the pressure plate (58) is connected to one of the pressure rods (41). A second coating ring (510) is installed on the top inner wall of the lower body (1), and the second coating ring (510) is located at the top of the lower rod hole (11). A second liquid pipe (59) is connected between the second coating ring (510) and the glue bag (57), and the second coating ring (510) is in contact with the bare rod (6).

Images