Pumping unit support capable of providing safety belt anchoring point

Abstract

The invention relates to the technical field of oil pumping units for oil field crude oil lifting, in particular to an oil pumping unit support capable of providing a safety belt anchoring point. The oil pumping unit support capable of providing the safety belt anchoring point comprises a tripod and a safety belt anchoring device, a cross beam is arranged on the tripod, the safety belt anchoring device comprises a length-adjustable suspension rod and a length-adjustable supporting rod, the angles of the suspension rod and the supporting rod can be adjusted up and down, and the suspension rod and the supporting rod are installed on the cross beam through an upper fixing base and a lower fixing base respectively. The left-right direction of the upper fixing base and the lower fixing base can be adjusted, the supporting rod upwards supports the hanging rod, and a safety belt fixing groove is formed in the hanging rod. According to the oil pumping unit support capable of providing the safety belt anchoring point, through the length-adjustable hanging rod, the length-adjustable supporting rod, the angle-adjustable upper fixing base and the angle-adjustable lower fixing base, the safety belt anchoring point can be adjusted according to the actual condition, the safety belt anchoring point is located over a worker, and safety is improved; workers do not need to carry mounting tools during construction, so that the labor intensity of the workers is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pumping units for lifting crude oil in oil fields, and particularly to a pumping unit support capable of providing a seat belt anchoring point. Background Art

[0002] During the operation of a pumping unit, due to the uneven torque of the speed reducer and the motor load caused by alternating loads, it is necessary to adjust the load of the motor during the up and down strokes of the walking beam through balance weights to make the motor run smoothly. However, with the change of the production time and the downhole liquid production, the pumping unit in the initial balanced state will continuously change, resulting in uneven load at the selected point during the up and down strokes of the walking beam. This is because the motor will do negative work during the down stroke, causing a large change in the alternating load of the pumping unit walking beam, resulting in unbalanced motor current, thereby reducing the efficiency of the motor and shortening the service life of the pumping unit, motor and sucker rod string. At this time, it is necessary to perform the balance adjustment operation of the pumping unit. By adjusting the positions of the upper and lower balance weights on the crank of the pumping unit, the work done during the up and down strokes of the pumping unit is made equal through counterweight, so that the motor current is restored to balance again. When adjusting the balance weight, the operator needs to stand on the crank of the pumping unit or the speed reducer to move the position of the balance weight on the crank. This height is 2.5 - 3 m. According to safety regulations, a seat belt needs to be equipped for work. However, there is no seat belt suspension point on each component of the existing pumping unit, and there is a risk that the operator may fall and be injured from the crank or speed reducer of the pumping unit during operation.

[0003] In the prior art, there are two technologies with the patent names of Rotary Suspension Safety Rod for Balance Adjustment Operation of Pumping Unit and Press-down Suspension Safety Rod for Balance Adjustment Operation of Pumping Unit, which are respectively suspended on the column of the pumping unit support through the cooperation of a rotating plate and a movable hook with a hanging hook. However, due to the fact that the support is larger at the bottom and smaller at the top, and the safety rod needs to be hung high and used low, the safety rod suspension point is within the range of the speed reducer. When the operator stands on the crank to move the balance weight, since the suspension point and the operator's position are not on the same vertical line, when the operator falls, the operating rod will pull the seat belt and cause the operator to move towards the speed reducer direction, resulting in large-scale left and right shaking and making it easy for the operator to be injured by collision. At the same time, the length of the safety rod in the prior art is fixed, and the adjustment range of the hanging ring is limited. It needs to be processed separately for different models of pumping units and cannot be applied to all models, unable to meet the suspension requirements of the operator's seat belt when different models are applied. In the prior art, the hanging ring of the safety rod is prone to sliding and cannot provide a fixed anchoring point. When applying it to a large model, when the balance weights on both sides of the crank of the pumping unit are adjusted to the extreme positions, a large angle will be generated between the seat belt hook and the hanging ring. When the operator accidentally falls, the inertia will drive the seat belt to swing back and forth on the hanging ring, making it easy to be injured by collision.

[0004] Meanwhile, there is also a patent for a balance-adjusting safety belt suspension device for pumping units in the prior art. It is fixed on the connecting rod of the pumping unit by two upper and lower clips, and forms a triangular bracket as a whole. Several stop pins are welded on the pipe, and the steel ring is sleeved on the pipe. At this time, the pipe is in a horizontal position. When in use, the safety belt is hung on the steel ring, and the steel ring can be used to realize the back-and-forth sliding of the safety belt within a small range. However, during the use process, since the device is installed on the connecting rod of the pumping unit, it not only affects the operation but also is prone to serious collision injuries. During the actual balance-adjusting operation, since the crank is horizontal, the connecting rod must be inclined, not in the upright position shown in the figure. If the device is fixed on the connecting rod, the pipe will be in an upward-inclined position at this time. At this time, the main stress point of the steel ring changes from the pipe to the stop pin, and the safety belt is in an unstable state, posing a safety hazard of personnel falling.

[0005] During the use process of the above three prior arts, there are also problems that the safety belt suspension device is inconvenient to carry and use, and cannot meet the requirements for adjusting the front, rear, left, and right positions of the safety belt suspension point. It also cannot keep the anchor point always directly above the operator and the fixed position of the anchor point unchanged, preventing the operator from being injured by collisions.

[0006] Therefore, in view of the above deficiencies, a pumping unit bracket capable of providing a safety belt anchor point is proposed. Summary of the Invention

[0007] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a pumping unit bracket capable of providing a safety belt anchor point, which solves the problems that the position of the safety belt anchor point in the prior art does not meet the construction requirements during the use process, and the position of the safety belt anchor point cannot be effectively adjusted, resulting in a large swing amplitude and a high possibility of injury when personnel fall.

[0008] (II) Technical Solutions To solve the above problems, the present invention provides a pumping unit bracket capable of providing a safety belt anchor point, including: A tripod and a safety belt anchoring device. The tripod is used to install and support the pumping unit equipment. On the side of the tripod facing the pumping unit, there are several horizontal and different-height crossbeams, and the safety belt anchoring device is installed on the crossbeams; The seat belt anchoring device includes a suspension rod and a support rod. One end of the suspension rod and the support rod are respectively installed on cross beams at two different levels with different heights and are detachably connected to the corresponding cross beams. The installation height of the suspension rod is higher than that of the support rod. The suspension rod includes an outer suspension rod cylinder and an inner suspension rod cylinder. One end of the outer suspension rod cylinder is connected to the cross beam through an upper fixing seat, and the other end is internally provided with an inner suspension rod cylinder to form a telescopic structure. The outer end of the inner suspension rod cylinder is provided with a pull ring, and a seat belt fixing groove is provided on the inner suspension rod cylinder of the suspension tube. The seat belt fixing groove is connected to the seat belt and the position of the seat belt in the seat belt fixing groove is adjustable. The support rod includes an inner support rod cylinder and an outer support rod cylinder. One end of the outer support rod cylinder is connected to the corresponding cross beam through a lower fixing seat, and the other end is internally provided with an inner support rod cylinder to form a telescopic structure. The outer end of the inner support rod cylinder is connected to the outer suspension rod cylinder and supports the suspension rod upward. The upper fixing seat and the lower fixing seat are detachably connected to the cross beam, and the upper fixing seat and the lower fixing seat can adjust the offset angle left and right. The upper fixing seat and the lower fixing seat are respectively connected to the outer suspension rod cylinder and the outer support rod cylinder. After connection, the outer suspension rod cylinder and the outer support rod cylinder can be adjusted in direction up and down.

[0009] Preferably, the upper fixing seat and the lower fixing seat are in the shape of angle steel and the inner contour matches the surface shape of the cross beam. The side surface of the upper fixing seat is hingedly connected to the outer suspension rod cylinder through a suspension rod connecting shaft. The upper surface of the lower fixing seat is hingedly connected to the outer support rod cylinder through a support rod connecting shaft.

[0010] Preferably, the edge of the upper surface of the upper fixing seat and the lower fixing seat is provided with a downward claw structure, and the claw grabs the cross beam downward to fix the position of the device. The top of the upper fixing seat is provided with an upper fixing seat top screw with a vertical direction, the side surface is provided with a plurality of fixing seat side top screws in the horizontal direction, and the bottom end of the upper fixing seat is provided with a stop wire in the horizontal direction, and the position of the stop wire is lower than the lower edge of the cross beam. The side surface of the lower fixing seat is provided with a plurality of lower fixing seat side top screws in the horizontal direction.

[0011] Preferably, the inner lower edge of the seat belt fixing groove is serrated with an upward direction and can cooperate with the buckle of the seat belt.

[0012] Preferably, the outer suspension rod cylinder is provided with a suspension rod inner cylinder positioning top screw for adjusting the position of the inner suspension rod cylinder. A front limit sleeve and a rear limit sleeve are respectively arranged before and after the suspension rod inner cylinder positioning top screw. The rear limit sleeve is fixed at one end of the outer suspension rod cylinder, and the front limit sleeve is installed on the outer suspension rod cylinder and can move on the outer suspension rod cylinder and is connected to the inner suspension rod cylinder. When the front limit sleeve contacts the rear limit sleeve, the inner suspension rod cylinder extends to the limit length.

[0013] Preferably, one end of the inner cylinder of the support rod is provided with a support rod axle pin, and the outer cylinder of the suspension rod is provided with a support rod positioning groove. The inner upper edge of the support rod positioning groove is serrated. The support rod supports the suspension rod by the contact between the support rod axle pin and the serrated structure at the top of the support rod positioning groove, and the contact position between the two is adjustable.

[0014] Preferably, a plurality of outer positioning pin holes are uniformly arranged axially on the outer cylinder of the support rod, inner positioning pin holes corresponding to the positions of the outer positioning pin holes are arranged on the inner cylinder of the support rod, and support rod positioning axle pins are arranged in the outer positioning pin holes. The positions of the inner cylinder of the support rod are limited by connecting the inner and outer positioning pin holes through the support rod positioning axle pins.

[0015] (III) Beneficial effects The pumping unit support capable of providing a seat belt anchor point provided by the present invention combines the inner cylinder of the suspension rod and the outer cylinder of the suspension rod to form a telescopic suspension rod and a support rod with a similar structure. The seat belt anchor point can be adjusted according to the actual situation, so that the fixed position of the seat belt meets the height position and left-right position requirements in different construction environments; the suspension rod and the support rod are fixed on the tripod through the upper fixing seat and the lower fixing seat with adjustable angles, and cooperate with the seat belt fixing groove with adjustable seat belt fixing position, so as to finely adjust the seat belt fixing position, reduce the swing amplitude after personnel fall, and improve safety; by installing the seat belt anchoring device on the tripod, the staff does not need to carry installation tools during construction, reducing the labor intensity of the staff and improving safety. Description of the drawings

[0016] Figure 1 is a side view of the pumping unit support capable of providing a seat belt anchor point of the present invention; Figure 2 is a front view of the pumping unit support capable of providing a seat belt anchor point of the present invention; Figure 3 is a structural diagram of the seat belt anchoring device of the pumping unit support capable of providing a seat belt anchor point of the present invention; Figure 4 is a side view of the upper fixing seat of the pumping unit support capable of providing a seat belt anchor point of the present invention; Figure 5 is a front view of the upper fixing seat of the pumping unit support capable of providing a seat belt anchor point of the present invention; Figure 6 is a structural diagram of the lower fixing seat of the pumping unit support capable of providing a seat belt anchor point of the present invention.

[0017] Among them, 1. Upper fixed seat; 2. Top screw on the upper fixed seat; 3. Side top screw on the upper fixed seat; 4. Suspension rod connecting shaft; 5. Support rod pivot pin; 6. Outer cylinder of the suspension rod; 7. Front limit sleeve; 8. Positioning top screw for the inner cylinder of the suspension rod; 9. Rear limit sleeve; 10. Inner cylinder of the suspension rod; 11. Pull ring; 12. Lower fixed seat; 13. Side top screw on the lower fixed seat; 14. Support rod connecting shaft; 15. Outer cylinder of the support rod; 16. Positioning pivot pin of the support rod; 17. Inner cylinder of the support rod; 18. Positioning groove of the support rod; 19. Seat belt fixing groove; 20. Tripod; 21. Seat belt anchoring device; 22. Retaining wire. Embodiment

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by "upper", "lower", "inner", "outer", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. The purpose is only to facilitate the description of the present invention and simplify the description, rather than indicating or implying that the components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0020] As Figure 1-6 shown, the present invention provides a pumping unit support that can provide a seat belt anchoring point, specifically including: a tripod 20 and a seat belt anchoring device 21. The tripod 20 is a commonly used pumping unit support in the prior art. The tripod 20 is provided with several horizontal and different-height cross beams on the side facing the pumping unit. The seat belt anchoring device 21 is installed on the cross beam to fix the device, and the seat belt anchoring device 21 provides a suitable and stable fixing position for the seat belt during the construction process.

[0021] The seat belt anchoring device 21 includes a suspension rod and a support rod. One ends of the suspension rod and the support rod are respectively installed on two cross beams with different heights at the upper and lower levels. The fixed height of the suspension rod is higher than that of the support rod. The suspension rod is installed on the cross beam and extends horizontally to provide an anchoring point for the seat belt during operation; one end of the support rod is fixed on the cross beam and the installation height is lower than that of the suspension rod, and the other end contacts the suspension rod upward to support the suspension rod upward. When performing high-altitude operations, the support rod supports the suspension rod upward to form a triangular structure, which can stably bear the weight of the staff and improve the safety of the device.

[0022] Among them, the suspension rod and the support rod are respectively installed on the cross beam of the tripod 20 through the upper fixing seat 1 and the lower fixing seat 12. After the upper fixing seat 1 and the lower fixing seat 12 are installed on the corresponding cross beam, they can be adjusted for angular offset in the left-right direction. By adjusting the angles of the upper fixing seat 1 and the lower fixing seat 12 simultaneously, the support rod and the suspension rod can be adjusted in the left-right direction during use, so that the device can meet various working needs in the actual working process and provide a seat belt fixing position with a position conforming to the working requirements. The side surface of the upper fixing seat 1 is hingedly connected to the outer cylinder 6 of the suspension rod through the suspension rod connecting shaft 4. During the working process, the hinged connection method enables the suspension rod to make an angular adjustment in the up-down direction with the suspension rod connecting shaft 4 as the axis without affecting the stability of the connection between the upper fixing seat 1 and the cross beam; the upper surface of the lower fixing seat 12 is hingedly connected to the outer cylinder 15 of the support rod through the support rod connecting shaft 14. The hinged connection prevents the support rod from making the same adjustment as the suspension rod and achieving the same effect. At the same time, since the force received by the support rod during work mainly comes from the downward pressure of the suspension rod, the connection position between the support rod and the lower fixing seat 12 is set on the upper surface of the lower fixing seat 12, so that the force received by the support rod is transmitted to the cross beam through the lower fixing seat 12 to the greatest extent, improving the overall strength of the device.

[0023] It should be noted that the upper fixing seat 1 and the lower fixing seat 12 are in the shape of angle steel and the internal contour matches the surface shape of the cross beam. And downward claw structures are provided on the upper edges of the upper fixing seat 1 and the lower fixing seat 12. After the device is fixed on the cross beam, the claw structures can tightly grasp the cross beam downward to prevent the device from falling off during use and improve the stability of the device. The top of the upper fixing seat 1 is provided with an upper fixing seat top screw 2 with a vertical direction. The upper fixing seat top screw 2 is directly connected to the upper fixing seat 1 through a thread. By rotating the upper fixing seat top screw 2, the upper fixing seat 1 can be pressed downward against the cross beam. A plurality of upper fixing seat side top screws 3 are arranged along the horizontal direction on the side surface of the upper fixing seat 1. By tightening the upper fixing seat side top screws 3, they can cooperate with the claw structures to fix the upper fixing seat 1 and the cross beam from the horizontal direction. At the same time, by adjusting different upper fixing seat side top screws 3 to different positions, the upper fixing seat 1 can be adjusted for angular offset in the left-right direction on the cross beam; a plurality of lower fixing seat side top screws 13 are arranged along the horizontal direction on the side surface of the lower fixing seat 12. By tightening the lower fixing seat side top screws 13, they can cooperate with the claw structures to fix the lower fixing seat 12 and the cross beam from the horizontal direction. At the same time, by adjusting different lower fixing seat side top screws 13 to different positions, the lower fixing seat 12 can be adjusted for angular offset in the left-right direction on the cross beam. By adjusting the upper fixing seat side top screws 3 and the lower fixing seat side top screws 13 simultaneously, the whole device can generate an offset angle in the left-right direction, which can meet the needs of the seat belt fixing position in different working environments and improve the practicability of the device.

[0024] In addition, a horizontally - directed wire stop 22 is provided at the bottom end of the side surface of the upper fixing seat 1. The height of the wire stop 22 is lower than the lower edge of the cross - beam. After the wire stop 22 is tightened, it is located below the cross - beam. When adjusting the top screw 2 of the upper fixing seat, it prevents the upper fixing seat 1 from moving upward and detaching from the cross - beam. At the same time, it cooperates with the top screw 2 of the upper fixing seat to clamp the cross - beam, fixing the device on the cross - beam in the vertical direction and improving the stability of the device.

[0025] In the present invention, the suspension rod includes a suspension rod outer cylinder 6 and a suspension rod inner cylinder 10. One end of the suspension rod outer cylinder 6 is connected to the cross - beam through the upper fixing seat 1, and the other end is internally provided with a suspension rod inner cylinder 10 to form a telescopic structure. A pull - ring 11 is provided at the outer end of the suspension rod inner cylinder 10 for fixing the safety belt, serving as an anchor point for the safety belt. When the length of the suspension rod outer cylinder 6 is insufficient, the length of the suspension rod can be adjusted by pulling the pull - ring 11 to meet the requirements for the length of the suspension rod under different working conditions.

[0026] Meanwhile, a safety - belt fixing groove 19 is provided on the suspension rod inner cylinder 10. The safety - belt fixing groove 19 can also be used to install the safety belt as an anchor point for the safety belt, and the position of the safety belt in the safety - belt fixing groove 19 is adjustable. In this embodiment, the bottom of the safety - belt fixing groove 19 is serrated, and the serrated part cooperates with the buckle used for fixing the top end of the safety belt. During work, by adjusting the position of the safety - belt buckle in the safety - belt fixing groove 19, while ensuring the stability of the safety - belt anchor point, a fine adjustment of the safety - belt anchor point can be carried out, so that the anchor point of the safety belt always remains above the staff, preventing the staff from being injured due to excessive swing amplitude during a fall accident, improving the practicability and safety of the device, and reducing the risk coefficient during work.

[0027] Among them, a suspension - rod inner - cylinder positioning top - screw 8 is provided on the suspension rod outer cylinder 6. The suspension - rod inner - cylinder positioning top - screw 8 is thread - connected to the suspension rod 6. By tightening the suspension - rod inner - cylinder positioning top - screw 8, the suspension rod inner cylinder 10 can be clamped inward, fixing the position of the suspension rod inner cylinder 10, preventing the suspension rod inner cylinder 10 from loosening under force during use, which may lead to work failure or even accidents causing injury to personnel, and improving the safety factor during the operation of the device.

[0028] It should be noted that a front limit sleeve 7 and a rear limit sleeve 9 are provided on the outer cylinder 6 of the suspension rod. The rear limit sleeve 9 is fixed to the end of the outer cylinder 6 of the suspension rod on the outward side. The front limit sleeve 7 is sleeved on the outer cylinder 6 of the suspension rod and is connected to the inner cylinder 10 of the suspension rod inward. When the inner cylinder 10 of the suspension rod makes a telescopic movement, the front limit sleeve 7 moves on the outer cylinder 6 of the suspension rod along with the inner cylinder 10 of the suspension rod. When the front limit sleeve 7 contacts the rear limit sleeve 9, the rear limit sleeve 9 prevents the front limit sleeve 7 from continuing to move, thereby preventing the inner cylinder 10 of the suspension rod from continuing to move outward. At this time, the inner cylinder 10 of the suspension rod extends to the limit length, playing a limiting role on the inner cylinder 10 of the suspension rod and preventing the inner cylinder 10 of the suspension rod from detaching from the outer cylinder 6 of the suspension rod. Generally, a sliding groove is provided on the outer cylinder 6 of the suspension rod. The bottom end of the front limit sleeve 7 passes through the sliding groove and is connected to the inner cylinder 10 of the suspension rod and cooperates with the sliding groove to move on the outer cylinder 6 of the suspension rod.

[0029] As Figure 3 shown, the support rod includes an inner cylinder 17 of the support rod and an outer cylinder 15 of the support rod. One end of the outer cylinder 15 of the support rod is connected to the corresponding cross beam through a lower fixing seat 12, and the other end is internally provided with an inner cylinder 17 of the support rod to form a telescopic structure. The outer end of the inner cylinder 17 of the support rod is connected to the outer cylinder 6 of the suspension rod and supports the suspension rod upward. During the working process, the length of the support rod can be adjusted by adjusting the extended length of the inner cylinder 17 of the support rod, thereby changing the upward inclination angle of the suspension rod, and cooperating with the suspension rod to adjust the height of the seat belt anchor point to meet the needs of different working conditions.

[0030] Among them, a support rod pin 5 is provided at one end of the inner cylinder 17 of the support rod. A support rod positioning groove 18 is provided on the outer cylinder 6 of the suspension rod. The inner upper edge of the support rod positioning groove 18 is serrated. The support rod pin 5 cooperates with the support rod positioning groove 18. The support rod pin 5 contacts the serrated structure on the upper edge of the support rod positioning groove 18 upward to fix the position of the support rod pin 5, and at the same time the support rod supports the suspension rod upward through the support rod positioning groove 18. The support rod pin 5 can be fixed at any position of the serrated structure. When adjusting the device, while adjusting the length of the support rod, the contact position between the support rod pin 5 and the support rod positioning groove 18 is adjusted, so that the angle of the suspension rod in the vertical direction can be adjusted, enabling the seat belt anchor point provided by the device to be adjusted effectively according to different working environments and improving the adjustment accuracy of the device.

[0031] It should be noted that a plurality of outer positioning pin holes are evenly arranged axially on the support rod outer cylinder 15, and an inner positioning pin hole corresponding to the position of the outer positioning pin hole is arranged on the support rod inner cylinder 17. A support rod positioning shaft pin 16 is arranged in the outer positioning pin hole, and the support rod positioning shaft pin 16 passes through the outer positioning pin hole and the inner positioning pin hole at the same time to fix the position of the support rod inner cylinder 17 and thus fix the length of the support rod. When pushing and pulling the support rod inner cylinder 17, according to the different positions of the support rod inner cylinder 17, the support rod positioning shaft pin 16 is used to connect the inner positioning pin hole with the outer positioning pin hole at different positions to fix the position of the support rod inner cylinder 17. While adjusting the length of the support rod, the stability of the device is maintained to prevent the support rod inner cylinder 17 from being retracted under force during operation, causing the length of the support rod to change during operation, resulting in work failure or even personal injury, thereby improving the safety and stability of the device.

[0032] The pumping unit support provided by the present invention can provide workers with a safety belt anchor point that can fully meet work needs, has an adjustable position and is firmly fixed during the inspection and maintenance of the pumping unit, thereby reducing the workload and work intensity of the workers and improving the safety factor of the work. The specific operation process of the device is as follows: Step 1: Assemble the device according to the work requirements. In the assembled device, the safety belt anchor device is fixed on the tripod, which does not affect the daily work of the pumping unit equipment.

[0033] Step 2: After the oil pumping unit is shut down, adjust the safety belt anchor device so that the safety belt anchor point provided by the device meets the working needs. In this process, first adjust the top screws on the upper fixed seat side and the bottom fixed seat side, move the safety belt anchor device left and right to the appropriate position, and then adjust the angle of the device by adjusting the tightness of the top screws on the upper fixed seat side and the bottom fixed seat side, so that the angle of the device meets the working needs; then pull the pull ring, pull out the inner tube of the suspension rod, and adjust the length of the suspension rod by clamping the positioning top screw of the inner tube of the suspension rod, so that the position of the safety belt anchor point provided by the suspension rod can be directly above the working position; finally, pull out the inner tube of the support rod upwards, and then fix the length of the support rod by the support rod positioning shaft pin, and at the same time adjust the contact position of the support rod shaft pin and the support rod positioning groove, fine-tune the angle and length of the device and form a stable support.

[0034] Step 3: Fix the safety belt in the safety belt fixing groove. At this point, after the adjustment operation in step 2, the safety belt fixing groove or the clamp ring can provide a safety belt anchor point directly above the working position. After the safety belt is fixed, the safety belt is basically in a vertical state during the work process. Even if a person falls, the vertical safety belt can minimize the shaking of the worker in mid-air and reduce the danger of work.

[0035] Step 4: After the work is completed, retract the outer cylinder of the suspension rod and the inner cylinder of the support rod. After the staff removes the safety belt, they can leave the site.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pumping unit support capable of providing a seat belt anchor point, characterized in that, it includes: a tripod (20) and a seat belt anchoring device (21). The tripod (20) is used to install and support the pumping unit equipment. On the side of the tripod (20) facing the pumping unit, there are several horizontal crossbeams with different heights. The seat belt anchoring device (21) is installed on the crossbeams; the seat belt anchoring device (21) includes a suspension rod and a support rod. One ends of the suspension rod and the support rod are respectively installed on crossbeams with different heights at the upper and lower levels and are detachably connected to the crossbeams. The installation height of the suspension rod is higher than that of the support rod; the suspension rod includes an outer suspension rod cylinder (6) and an inner suspension rod cylinder (10). One end of the outer suspension rod cylinder (6) is connected to the crossbeam through an upper fixing seat (1), and the other end is internally provided with an inner suspension rod cylinder (10) to form a telescopic structure; the outer end of the inner suspension rod cylinder (10) facing the outside is provided with a pull ring (11), and a seat belt fixing groove (19) is provided on the inner suspension rod cylinder (10). The seat belt fixing groove (19) is connected to the seat belt and the position of the seat belt in the seat belt fixing groove (19) is adjustable; the support rod includes an inner support rod cylinder (17) and an outer support rod cylinder (15). One end of the outer support rod cylinder (15) is connected to the corresponding crossbeam through a lower fixing seat (12), and the other end is internally provided with an inner support rod cylinder (17) to form a telescopic structure. The outer end of the inner support rod cylinder (17) facing the outside is connected to the outer suspension rod cylinder (6) and supports the suspension rod upward; the upper fixing seat (1) and the lower fixing seat (12) are detachably connected to the crossbeam, and the upper fixing seat (1) and the lower fixing seat (2) can adjust the offset angle left and right; the upper fixing seat (1) and the lower fixing seat (12) are respectively connected to the outer suspension rod cylinder (6) and the outer support rod cylinder (15), and the outer suspension rod cylinder (6) and the outer support rod cylinder (15) after connection can adjust the direction up and down.

2. The pumping unit support capable of providing a seat belt anchor point according to claim 1, characterized in that, the upper fixing seat (1) and the lower fixing seat (12) are in the shape of angle steel and the inner contour matches the surface shape of the crossbeam. The side surface of the upper fixing seat (1) is hingedly connected to the outer suspension rod cylinder (6) through a suspension rod connecting shaft (4); the upper surface of the lower fixing seat (12) is hingedly connected to the outer support rod cylinder (15) through a support rod connecting shaft (14).

3. The pumping unit support capable of providing a seat belt anchor point according to claim 2, characterized in that, downward claw structures are provided at the edges of the upper surfaces of the upper fixing seat (1) and the lower fixing seat (12), and the claws grip the crossbeam downward to fix the position of the device; an upper fixing seat upper set screw (2) with a vertical direction is provided at the top end of the upper fixing seat (1), and a plurality of upper fixing seat side set screws (3) are provided along the horizontal direction on the side surface. A stop wire (22) with a horizontal direction is provided at the bottom end of the upper fixing seat (1), and the position of the stop wire (22) is lower than the lower edge of the crossbeam; a plurality of lower fixing seat side set screws (13) are provided along the horizontal direction on the side surface of the lower fixing seat (2).

4. The pumping unit support capable of providing a seat belt anchor point according to claim 1, It is characterized in that the inner lower edge of the seat belt fixing groove (19) is serrated facing upward, which can cooperate with the buckle of the seat belt.

5. The pumping unit support capable of providing a seat belt anchor point according to claim 1 It is characterized in that a positioning setscrew (8) for adjusting the position of the inner cylinder (10) of the suspension rod is provided on the outer cylinder (6) of the suspension rod; a front limit sleeve (7) and a rear limit sleeve (9) are respectively provided before and after the positioning setscrew (8) of the inner cylinder of the suspension rod. The rear limit sleeve (9) is fixed at one end of the outer cylinder (6) of the suspension rod, and the front limit sleeve (7) is installed on the outer cylinder (6) of the suspension rod and can move on the outer cylinder (6) of the suspension rod and is connected to the inner cylinder (10) of the suspension rod. When the front limit sleeve (7) contacts the rear limit sleeve (9), the inner cylinder (10) of the suspension rod extends to the maximum length.

6. The pumping unit support capable of providing a seat belt anchor point according to claim 1 It is characterized in that one end of the inner cylinder (17) of the support rod is provided with a support rod axle pin (5), and a support rod positioning groove (18) is provided on the outer cylinder (6) of the suspension rod. The inner upper edge of the support rod positioning groove (18) is serrated. The support rod supports the suspension rod through the contact between the support rod axle pin (5) and the serrated structure at the top of the support rod positioning groove (18), and the contact position between the two is adjustable.

7. The pumping unit support capable of providing a seat belt anchor point according to claim 1 It is characterized in that a plurality of outer positioning pin holes are axially and uniformly provided on the outer cylinder (15) of the support rod, inner positioning pin holes corresponding to the positions of the outer positioning pin holes are provided on the inner cylinder (17) of the support rod, and a support rod positioning axle pin (16) is provided in the outer positioning pin holes. The position of the inner cylinder (17) of the support rod is limited by connecting the inner and outer positioning pin holes through the support rod positioning axle pin (16).

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