Double-channel knob type hydraulic power tong operating handle

Abstract

The double-channel knob type hydraulic power tong operating handle comprises a handle rod, the handle rod is of a hollow tubular structure, a lock pin pull rod is sleeved with the handle rod, one end of the lock pin pull rod penetrates through a spring to be attached to a spring seat cap, the other end of the lock pin pull rod penetrates through a prying head to be embedded into a connecting seat, and the handle rod is sleeved with a knob sleeve. The safety protection device has the beneficial effect that the safety protection device is additionally arranged for the hydraulic power tongs. The handle is simple and reasonable in structural design, safe, reliable and extremely convenient to use on site. The safety coefficient of the hydraulic power tongs can be greatly improved, the personal safety of operators is protected, and the possibility of mechanically hurting people is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic power tongs equipment manufacturing and relates to a dual-channel knob-type hydraulic power tongs operating handle. Background Art

[0002] In the drilling and well repairing operations of the oil industry, hydraulic power tongs are frequently used in the process of raising and lowering the well tools. The inventor has found in his long-term observation and practice that the use of hydraulic power tongs and the device itself in this process pose great safety hazards. Because the operating handle of the hydraulic power tongs reversing valve currently used is too simple, it is just a simple application of the lever principle, and no safety protection device is provided. During the use of hydraulic power tongs, mechanical injuries are very likely to occur. Injuries caused by hydraulic power tongs endanger the personal safety of operating employees, and also cause great losses to production units. Summary of the invention

[0003] The purpose of the present invention is to provide a dual-channel knob-type hydraulic power tongs operating handle, which solves the problem that the hydraulic power tongs in the prior art have no safety protection device.

[0004] The technical solution adopted by the present invention is a dual-channel knob-type hydraulic power tongs operating handle, including a handle rod. The handle rod structure is a hollow tube. A locking pin pull rod is sleeved inside the handle rod. One end of the locking pin pull rod passes through a spring and fits with a spring seat cap, and the other end passes through a prying head and fits with a connecting seat. A knob sleeve is sleeved outside the handle rod.

[0005] The present invention is also characterized in that: an annular protrusion is provided on the handle bar, and a double-pass slide rail is opened on the annular protrusion; one end of the knob sleeve is closed, and an annular protrusion is provided on the outer wall of the other end, and an annular groove is opened on the inner wall of the annular protrusion; a small hole is opened on the end surface of the closed end of the knob sleeve for use with the hexagon socket bolt

[0006] The present invention is also characterized in that: the annular protrusion on the handle rod is embedded in the annular groove on the knob sleeve, two O-type rubber ring installation grooves are opened in the annular groove of the knob sleeve, O-type rubber rings are embedded in the O-type rubber ring installation grooves, and slide rail pin installation holes are symmetrically opened on the annular protrusion on the knob sleeve, and the slide rail pin installation holes are connected to the slide rail pins, and the slide rail pins pass through the slide rail pin installation holes and are embedded in the double-pass slide rail.

[0007] The present invention is also characterized in that: the knob sleeve is covered with a stainless steel jacket, the stainless steel jacket is in the shape of a hollow pipe, one end of the stainless steel jacket is closed, and the other end face is in contact with the annular raised edge of the knob sleeve, and a small hole is opened on the closed end face of the stainless steel jacket for use with a hexagon socket bolt.

[0008] The present invention is also characterized in that: the stainless steel outer jacket is covered with a rubber sleeve, the closed end face of the stainless steel outer jacket is fitted with a waterproof cover, the waterproof cover is in a circular cover shape, the waterproof cover is fitted with the end face of the stainless steel outer jacket, small holes are opened on the cover surface of the waterproof cover for use with hexagon socket bolts, the edge of the cover surface of the waterproof cover is fitted with the end face of one end of the rubber sleeve, and the other end face of the rubber sleeve is fitted with the annular raised edge of the knob sleeve.

[0009] The present invention is also characterized in that: a locking tongue is provided at one end of the locking pin pull rod engaged with the connecting seat, a locking hole is provided on the connecting seat for use with the locking tongue, and an internal thread is provided on the end face of the other end of the locking pin pull rod for use with the hexagon socket bolt.

[0010] The invention is also characterized in that the hexagon socket bolt passes through the small hole on the waterproof cover, the small hole on the end surface of the stainless steel jacket, the small hole on the end surface of the knob sleeve, and the spring seat cap in sequence, and then is connected with the internal thread on the end surface of the lock pin pull rod.

[0011] The invention is also characterized in that: the end surface of one end of the handle rod is fitted with one end of the spring, the other end of the spring is fitted with the spring seat cap, the other end of the handle rod is covered with a prying head, and the prying head is connected to the connecting seat through a connecting pin.

[0012] The beneficial effects of the present invention are as follows: the present invention adds a safety protection device to the hydraulic power tongs through a dual-channel knob-type hydraulic power tongs operating handle, the handle structure is simple and reasonable in design, safe and reliable, and is extremely convenient to use on site. The present invention can greatly improve the safety factor of the hydraulic power tongs, protect the personal safety of the operating staff, and avoid the possibility of mechanical injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the device structure of the dual-channel knob-type hydraulic power tongs operating handle of the present invention;

[0014] Figure 2 It is a partial structural schematic diagram of the dual-channel knob-type hydraulic power tongs operating handle of the present invention;

[0015] Figure 3 It is a top view schematic diagram of the operating handle of the dual-channel knob type hydraulic power tongs of the present invention;

[0016] Figure 4 It is a partial structural schematic diagram of the dual-channel knob-type hydraulic power tongs operating handle of the present invention;

[0017] Figure 5 yes Figure 4 Cross-sectional view of the mid-length BB surface.

[0018] In the figure, 1. cotter pin; 2. connecting pin; 3. connecting seat; 4. pry head; 5. O-ring; 6. knob sleeve; 7. handle rod; 8. spring; 9. locking pin pull rod; 10. spring seat cap; 11. rubber sleeve; 12. waterproof cover; 13. stainless steel jacket; 14. hexagon socket bolt; 15. slide rail pin; 16. double-pass slide rail; 17. slide rail pin mounting hole; 18. O-ring mounting groove. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1 As shown, the present invention is a dual-channel knob-type hydraulic power tongs operating handle, and the structure of the device is as follows: one side of the handle is a stainless steel jacket 13, and the rubber sleeve 11 is nested on the outer surface of the stainless steel jacket 13. One end of the stainless steel jacket 13 is fitted with the waterproof cover 12, and the hexagon socket bolt 14 cooperates with the internal thread of the lock pin pull rod 9 to fix the waterproof cover 12 on one end of the lock pin pull rod 9, and the hexagon socket bolt 14 is sleeved with a spring seat cap 10. The setting of the rubber sleeve 11 can increase the grip of the handle and facilitate operation. The rubber sleeve 11 is sleeved on the stainless steel jacket 13, and the end face of the stainless steel jacket 13 away from the connecting seat 3 is tightly fitted with the waterproof cover 12. After the end face of the stainless steel jacket 13 is fitted with the waterproof cover 12, it is combined with the rubber sleeve 11 to form a whole, realizing the rust-proof and waterproof effects. At the same time, it conforms to the principle of ergonomics, which increases the comfort of people when operating.

[0021] The rail pin 15 is installed on the knob sleeve 6 in an interference fit manner through two symmetrically distributed rail pin installation holes 17 on the knob sleeve 6, so that the rail pin 15 can move with the track in the double-pass rail 16 without falling off. The handle bar 7 is installed inside the knob sleeve 6 in a clearance manner.

[0022] The handle bar 7 is a hollow tubular structure, and a lock pin pull rod 9 is sleeved inside the handle bar 7. In order to make the axial displacement of the lock pin pull rod 9 more flexible, there is a gap between the outer surface of the lock pin pull rod 9 and the inner wall of the handle bar 7. One end of the spring 8 fits with the end surface of the handle bar 7, and the other end fits with the spring seat cap 10. The connecting seat 3 is a device for fixing and connecting the hydraulic power tongs reversing valve. Its structure is completely matched with the connection part of the existing hydraulic power tongs reversing valve. The connecting seat 3 is fixedly connected to the prying head 4 through the connecting pin 2. The prying head 4 is sleeved at the port at one end of the handle bar 7. In order to prevent the handle bar 7 and the prying head 4 from being disconnected, a connecting hole is provided at the front end of the connecting pin 2. After the prying head 4 and the connecting seat 3 are connected by the connecting pin 2, the cotter pin 1 is inserted into the connecting hole for fixing.

[0023] When the handle is in the locked state, a locking tongue is embedded in a locking hole on the connecting seat 3 at one end of the locking pin pull rod 9 close to the connecting seat 3 .

[0024] like Figure 2 As shown, the dual-pass slide rail 16 is arranged on the annular protrusion on the handle rod 7.

[0025] like Figure 3 As shown, the slide rail pin 15 is installed on the knob sleeve 6 in an interference fit manner through two symmetrically distributed slide rail pin installation holes 17 on the knob sleeve 6.

[0026] like Figure 4 , 5 As shown, two slide rail pin mounting holes 17 are symmetrically arranged on the knob sleeve 6, and two slide rail pins 15 are respectively installed therein.

[0027] like Figure 5 As shown, an O-type rubber ring installation groove 18 is provided inside the knob sleeve 6, and one is provided on each side of the slide rail pin installation hole 17 on the knob sleeve 6. The O-type rubber ring 5 is nested and installed in the O-type rubber ring installation groove 18 as a sealing and waterproof device, and a certain amount of grease can be stored inside the O-type rubber ring installation groove 18. During the rotation of the knob sleeve 6, the grease is automatically added to the inner wall of the O-type rubber ring 5, thereby achieving the effect of lubrication.

[0028] The present invention is a dual-channel knob-type hydraulic power tongs operating handle, which is installed on the reversing valve of the hydraulic power tongs to replace the original handle. It has a limit self-locking function that limits the free movement of the reversing valve, thereby improving the safety of the use of the hydraulic power oil pipe tongs. Its unlocking function drives the slide rail pin 15 to rotate in the double-pass slide rail 16 through the rotation of the knob sleeve 6. The rotation of the slide rail pin 15 drives the handle rod 7 to move along the axial direction of the handle, and the spring 8 at one end of the handle rod 7 squeezes the lock pin pull rod 9 to make a directional displacement along the axial direction. The lock tongue at the other end of the lock pin pull rod 9 leaves the lock hole on the connecting seat 3, thereby completing the unlocking of the device. When there is no external force interference with the knob sleeve 6, the spring 8 returns to a free state and drives the lock pin pull rod 9 to return to its original position. The lock tongue on the lock pin pull rod 9 enters the lock hole set on the connecting seat 3 to complete the locking of the device.

[0029] Example 1

[0030] like Figure 1 As shown, the dual-channel knob-type hydraulic power tongs operating handle proposed in this embodiment includes a handle rod 7, the handle rod 7 has a hollow tubular structure, a locking pin pull rod 9 is sleeved inside the handle rod 7, one end of the locking pin pull rod 9 passes through the spring 8 and fits with the spring seat cap 10, and the other end passes through the prying head 4 and fits with the connecting seat 3, and the handle rod 7 is covered with a knob sleeve 6.

[0031] Example 2

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the dual-channel knob-type hydraulic power tongs operating handle proposed in this embodiment includes a handle rod 7, the handle rod 7 has a hollow tubular structure, a locking pin pull rod 9 is sleeved inside the handle rod 7, one end of the locking pin pull rod 9 passes through the spring 8 and fits with the spring seat cap 10, and the other end passes through the prying head 4 and fits with the connecting seat 3, and the handle rod 7 is covered with a knob sleeve 6.

[0033] An annular protrusion is provided on the handle rod 7, and a double-pass slide rail 16 is opened on the annular protrusion. One end of the knob sleeve 6 is closed, and the outer wall of the other end is provided with an annular protrusion, and the inner wall of the annular protrusion is provided with an annular groove. A small hole is opened on the end surface of the closed end of the knob sleeve 6 for use with the hexagon socket bolt 14.

[0034] The annular protrusion on the handle rod 7 is embedded in the annular groove on the knob sleeve 6. Two O-type rubber ring mounting grooves 18 are opened in the annular groove of the knob sleeve 6. The O-type rubber ring mounting groove 18 is embedded with the O-type rubber ring 5. The annular protrusion on the knob sleeve 6 is symmetrically opened with slide rail pin mounting holes 17. The slide rail pin mounting holes 17 are connected to the slide rail pin 15. After the slide rail pin 15 passes through the slide rail pin mounting holes 17, it is embedded in the double-pass slide rail 16.

[0035] The knob sleeve 6 is covered with a stainless steel jacket 13, which is in the shape of a hollow pipe. One end of the stainless steel jacket 13 is closed, and the other end face is in contact with the annular raised edge of the knob sleeve 6. A small hole is opened on the closed end face of the stainless steel jacket 13 for use with the hexagon socket bolt 14.

[0036] Example 3

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the dual-channel knob-type hydraulic power tongs operating handle proposed in this embodiment includes a handle rod 7, the handle rod 7 has a hollow tubular structure, a locking pin pull rod 9 is sleeved inside the handle rod 7, one end of the locking pin pull rod 9 passes through the spring 8 and fits with the spring seat cap 10, and the other end passes through the prying head 4 and fits with the connecting seat 3, and the handle rod 7 is covered with a knob sleeve 6.

[0038] An annular protrusion is provided on the handle rod 7, and a double-pass slide rail 16 is opened on the annular protrusion. One end of the knob sleeve 6 is closed, and the outer wall of the other end is provided with an annular protrusion, and the inner wall of the annular protrusion is provided with an annular groove. A small hole is opened on the end surface of the closed end of the knob sleeve 6 for use with the hexagon socket bolt 14.

[0039] The annular protrusion on the handle rod 7 is embedded in the annular groove on the knob sleeve 6. Two O-type rubber ring mounting grooves 18 are opened in the annular groove of the knob sleeve 6. The O-type rubber ring mounting groove 18 is embedded with the O-type rubber ring 5. The annular protrusion on the knob sleeve 6 is symmetrically opened with slide rail pin mounting holes 17. The slide rail pin mounting holes 17 are connected to the slide rail pin 15. After the slide rail pin 15 passes through the slide rail pin mounting holes 17, it is embedded in the double-pass slide rail 16.

[0040] The knob sleeve 6 is covered with a stainless steel jacket 13, which is in the shape of a hollow pipe. One end of the stainless steel jacket 13 is closed, and the other end face is in contact with the annular raised edge of the knob sleeve 6. A small hole is opened on the closed end face of the stainless steel jacket 13 for use with the hexagon socket bolt 14.

[0041] The stainless steel jacket 13 is covered with a rubber jacket 11, and the closed end face of the stainless steel jacket 13 is fitted with the waterproof cover 12. The waterproof cover 12 is in a circular cover shape. The waterproof cover 12 is fitted with the end face of the stainless steel jacket 13. Small holes are opened on the cover surface of the waterproof cover 12 for use with the hexagon socket bolts 14. The edge of the cover surface of the waterproof cover 12 is fitted with the end face of one end of the rubber jacket 11, and the other end face of the rubber jacket 11 is fitted with the annular raised edge of the knob sleeve 6.

[0042] A locking tongue is provided at one end of the locking pin pull rod 9 which is engaged with the connecting seat 3 , and a locking hole is provided on the connecting seat 3 for use with the locking tongue. An internal thread is provided on the end face of the other end of the locking pin pull rod 9 , and the internal thread is used in conjunction with the hexagon socket bolt 14 .

[0043] The hexagon socket bolt 14 passes through the small hole on the waterproof cover 12, the small hole on the end surface of the stainless steel jacket 13, the small hole on the end surface of the knob sleeve 6, and the spring seat cap 10 in sequence, and is connected with the internal thread on the end surface of the lock pin pull rod 9.

[0044] One end face of the handle rod 7 is fitted with one end of the spring 8, and the other end of the spring 8 is fitted with the spring seat cap 10. The other end of the handle rod 7 is covered with a prying head 4, and the prying head 4 is connected to the connecting seat 3 through a connecting pin 2.

Claims

1. Dual-channel knob-type hydraulic power tongs operating handle, characterized by: The invention comprises a handle rod (7), wherein the handle rod (7) is in the shape of a hollow tube, a locking pin pull rod (9) is sleeved inside the handle rod (7), one end of the locking pin pull rod (9) passes through a spring (8) and fits with a spring seat cap (10), and the other end passes through a prying head (4) and fits with a connecting seat (3), and the handle rod (7) is sleeved with a knob sleeve (6).

2. The dual-channel knob-type hydraulic power tongs operating handle according to claim 1 is characterized in that: The handle rod (7) is provided with an annular protrusion, and a double-pass slide rail (16) is opened on the annular protrusion; one end of the knob sleeve (6) is closed, and the outer wall of the other end is provided with an annular protrusion, and the inner wall of the annular protrusion is provided with an annular groove; a small hole is opened on the end surface of the closed end of the knob sleeve (6) for use with the hexagon socket bolt (14).

3. The dual-channel knob-type hydraulic power tongs operating handle according to claim 2 is characterized in that: The annular protrusion on the handle rod (7) is embedded in the annular groove on the knob sleeve (6); two O-type rubber ring installation grooves (18) are opened in the annular groove of the knob sleeve (6); the O-type rubber ring (5) is embedded in the O-type rubber ring installation groove (18); the annular protrusion on the knob sleeve (6) is symmetrically opened with a slide rail pin installation hole (17); the slide rail pin installation hole (17) is connected to a slide rail pin (15); the slide rail pin (15) passes through the slide rail pin installation hole (17) and is embedded in the double-pass slide rail (16).

4. The dual-channel knob-type hydraulic power tongs operating handle according to claim 3 is characterized in that: The knob sleeve (6) is covered with a stainless steel sleeve (13), which is in the shape of a hollow pipe. One end of the stainless steel sleeve (13) is closed, and the other end face is in contact with the annular raised edge of the knob sleeve (6). A small hole is opened on the closed end face of the stainless steel sleeve (13) for use with the hexagon socket bolt (14).

5. The dual-channel knob-type hydraulic power tongs operating handle according to claim 4 is characterized in that: The stainless steel outer casing (13) is covered with a rubber casing (11); the closed end surface of the stainless steel outer casing (13) is fitted with the waterproof cover (12); the waterproof cover (12) is in a circular cover shape; the waterproof cover (12) is fitted with the end surface of the stainless steel outer casing (13); a small hole is opened on the cover surface of the waterproof cover (12) for use with the hexagon socket bolt (14); the cover surface edge of the waterproof cover (12) is fitted with the end surface of one end of the rubber casing (11); and the other end surface of the rubber casing (11) is fitted with the annular raised edge of the knob sleeve (6).

6. The dual-channel knob-type hydraulic power tongs operating handle according to claim 5, characterized in that: The lock pin pull rod (9) is provided with a lock tongue at one end that is engaged with the connecting seat (3), and the connecting seat (3) is provided with a lock hole that cooperates with the lock tongue. The end surface of the other end of the lock pin pull rod (9) is provided with an internal thread that cooperates with the hexagon socket bolt (14).

7. The dual-channel knob-type hydraulic power tongs operating handle according to claim 6, characterized in that: The hexagon socket bolt (14) passes through the small hole on the waterproof cover (12), the small hole on the end surface of the stainless steel jacket (13), the small hole on the end surface of the knob sleeve (6), and the spring seat cap (10) in sequence, and is connected to the internal thread on the end surface of the lock pin pull rod (9).

8. The dual-channel knob-type hydraulic power tongs operating handle according to claim 7, characterized in that: The end surface of one end of the handle rod (7) is fitted with one end of the spring (8), and the other end of the spring (8) is fitted with the spring seat cap (10). The other end of the handle rod (7) is covered with a prying head (4), and the prying head (4) is connected to the connecting seat (3) through a connecting pin (2).

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