Dual channel knob operated hydraulic power tong handle

Abstract

The handle of the hydraulic power tongs is composed of a handle rod, a lock pin pull rod and a knob sleeve. The lock pin pull rod is sleeved in the handle rod, one end of the lock pin pull rod is connected with the spring seat cap through a spring, and the other end of the lock pin pull rod is embedded in the connecting seat through a pry head. The handle rod is sleeved with the knob sleeve. The handle is simple in structure, safe and reliable, and convenient to use. The safety factor of the hydraulic power tongs is improved, the personal safety of the operator is protected, and the possibility of mechanical injury is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hydraulic power tong equipment manufacturing, and relates to a double-channel rotary knob type hydraulic power tong operating handle. BACKGROUND

[0002] In the process of hoisting and lowering the well tool in the oil industry drilling and workover operation, the hydraulic power tong is frequently used. In the long-term observation and practice of the inventor, it is found that the use of the hydraulic power tong in the process and the device itself have great safety hazards. Since the operating handle of the reversing valve of the currently used hydraulic power tong is too simple, it is only a simple application of the principle of a lever, and no safety protection device is provided. In the use process of the hydraulic power tong, mechanical injury accidents are prone to occur. The injury caused by the mechanical injury of the hydraulic power tong endangers the personal safety of the operating staff, and also brings great loss to the production unit. SUMMARY

[0003] The purpose of the present application is to provide a double-channel rotary knob type hydraulic power tong operating handle, which solves the problem of no safety protection device in the prior art.

[0004] The technical solution adopted by the present application is a double-channel rotary knob type hydraulic power tong operating handle, which comprises a handle rod, the handle rod structure is in the form of a hollow pipe, a lock pin pull rod is sleeved in the handle rod, one end of the lock pin pull rod is fitted with a spring and a spring seat cap, the other end passes through a prying head and is embedded with a connecting seat, and a rotary knob sleeve is sleeved outside the handle rod.

[0005] The present application is characterized in that: an annular protrusion is arranged on the handle rod, double-channel sliding rails are opened on the annular protrusion, one end of the rotary knob sleeve is closed, the other end is provided with an annular protrusion, and an annular groove is opened in the inner wall of the annular protrusion, a small hole is opened on the end face of the closed end of the rotary knob sleeve, and the small hole is used in cooperation with an internal hexagonal bolt

[0006] The present application is characterized in that: the annular protrusion on the handle rod is embedded in the annular groove on the rotary knob sleeve, two O-shaped rubber ring installation grooves are opened in the annular groove in the rotary knob sleeve, O-shaped rubber rings are embedded in the O-shaped rubber ring installation grooves, symmetrical sliding rail pin installation holes are opened on the annular protrusion on the rotary knob sleeve, sliding rail pins are connected in the sliding rail pin installation holes, and the sliding rail pins are embedded in the double-channel sliding rails after passing through the sliding rail pin installation holes.

[0007] The present application is characterized in that: a stainless steel sleeve is sleeved outside the rotary knob sleeve, the stainless steel sleeve is in the form of a hollow pipe, one end of the stainless steel sleeve is closed, the other end face is fitted with the edge of the annular protrusion of the rotary knob sleeve, a small hole is opened on the end face of the closed end of the stainless steel sleeve, and the small hole is used in cooperation with an internal hexagonal bolt.

[0008] The application also has the characteristics that the stainless steel sleeve is provided with a rubber sleeve, the closed end surface of the stainless steel sleeve is attached to the waterproof cover, the waterproof cover is in the shape of a round cover, the waterproof cover is attached to the end surface of the stainless steel sleeve, a small hole is formed in the cover surface of the waterproof cover for use in cooperation with the inner hexagonal bolt, the edge of the cover surface of the waterproof cover is attached to the end surface of one end of the rubber sleeve, and the end surface of the other end of the rubber sleeve is attached to the edge of the annular protrusion of the knob sleeve.

[0009] The application also has the characteristics that the lock pin pull rod is embedded with a lock tongue at one end, a lock hole is formed in the connecting seat for use in cooperation with the lock tongue, and internal threads are formed in the end surface of the other end of the lock pin pull rod for use in cooperation with the inner hexagonal bolt.

[0010] The application also has the characteristics that the inner hexagonal bolt is sequentially connected to the internal threads in the end surface of the lock pin pull rod through the small hole in the waterproof cover, the small hole in the end surface of the stainless steel sleeve, the small hole in the end surface of the knob sleeve, and the back of the spring seat cap.

[0011] The application also has the characteristics that the end surface of one end of the handle rod is attached to one end of the spring, the other end of the spring is attached to the spring seat cap, the other end of the handle rod is provided with a prying head, and the prying head is connected to the connecting seat through the connecting pin.

[0012] The application has the beneficial effects that the double-channel knob type hydraulic power tongs operating handle of the application adds a safety protection device to the hydraulic power tongs, the handle structure is simple and reasonable, safe and reliable, and extremely convenient in field use. The application can greatly improve the safety factor of the hydraulic power tongs, protect the personal safety of the operators, and avoid the possibility of mechanical injury. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the device structure schematic diagram of the double-channel knob type hydraulic power tongs operating handle of the application;

[0014] Figure 2 is the local structure schematic diagram of the double-channel knob type hydraulic power tongs operating handle of the application;

[0015] Figure 3 is the top view schematic diagram of the double-channel knob type hydraulic power tongs operating handle of the application;

[0016] Figure 4 is the local structure schematic diagram of the double-channel knob type hydraulic power tongs operating handle of the application;

[0017] Figure 5 is Figure 4 the sectional view of the B-B plane in FIG.

[0018] In the diagram, 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 outer sleeve; 14. Hex socket head cap bolt; 15. Slide rail pin; 16. Double-through slide rail; 17. Slide rail pin mounting hole; 18. O-ring mounting groove. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1 As shown, this invention is a dual-channel rotary hydraulic power pliers operating handle. The structure of the device is as follows: one side of the handle is a stainless steel outer sleeve 13, and a rubber sleeve 11 is nested on the outer surface of the stainless steel outer sleeve 13. One end of the stainless steel outer sleeve 13 is fitted with a waterproof cover 12. A hexagonal socket head cap 14 engages with the internal thread of the locking pin rod 9 to fix the waterproof cover 12 to one end of the locking pin rod 9. A spring cap 10 is fitted onto the hexagonal socket head cap 14. The rubber sleeve 11 increases the grip of the handle, making it easier to operate. The rubber sleeve 11 is fitted onto the stainless steel outer sleeve 13, and the end face of the stainless steel outer sleeve 13 away from the connecting seat 3 is tightly fitted with the waterproof cover 12. After the end face of the stainless steel outer sleeve 13 is fitted with the waterproof cover 12, it combines with the rubber sleeve 11 to form a whole, achieving rust prevention and waterproofing. At the same time, it conforms to ergonomic principles, increasing the comfort of the user during operation.

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

[0022] The handle rod 7 is structurally a hollow tubular shape, with a locking pin rod 9 fitted inside. To allow for flexible axial displacement of the locking pin rod 9, a gap exists between the outer surface of the locking pin rod 9 and the inner wall of the handle rod 7. One end of the spring 8 is fitted against the end face of the handle rod 7, and the other end is fitted into the spring seat cap 10. The connecting seat 3 is a device used to fix and connect the hydraulic power pliers directional valve. Its structure is completely matched with the existing hydraulic power pliers directional valve connection part. The connecting seat 3 and the pry head 4 are fixedly connected by a connecting pin 2. The pry head 4 is sleeved at one end of the handle rod 7. To prevent the sleeve between the handle rod 7 and the pry head 4 from breaking, a connecting hole is provided at the front end of the connecting pin 2. After the pry 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 fixation.

[0023] When the handle is locked, the locking bolt 9 has a locking tongue that is inserted into the locking hole on the connecting seat 3 at the end near the connecting seat 3.

[0024] likeFigure 2 As shown, the double-pass slide rail 16 is mounted on the annular protrusion on the handle lever 7.

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

[0026] like Figure 4 , 5 As shown, the knob sleeve 6 has two symmetrical slide rail pin mounting holes 17, each with two slide rail pins 15 installed.

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

[0028] This invention relates to a dual-channel rotary hydraulic power wrench operating handle, which is installed on the directional valve of the hydraulic power wrench, replacing the original handle. It features a self-locking function that limits the free movement of the directional valve, improving the safety of using the hydraulic power wrench. Its unlocking function is achieved by rotating the rotary sleeve 6, which causes the slide rail pin 15 to rotate within the dual-channel slide rail 16. The rotation of the slide rail pin 15 causes the handle rod 7 to move axially, compressing the spring 8 at one end of the handle rod 7 and causing the locking pin rod 9 to move axially in a directional direction. The locking tongue at the other end of the locking pin rod 9 disengages from the locking hole on the connecting seat 3, thus unlocking the device. When there is no external force interfering with the rotary sleeve 6, the spring 8 returns to its free state and drives the locking pin rod 9 back to its original position. The locking tongue on the locking pin rod 9 then enters the locking hole on the connecting seat 3, locking the device.

[0029] Example 1

[0030] like Figure 1 As shown, the dual-channel rotary hydraulic power pliers operating handle proposed in this embodiment includes a handle rod 7, which has a hollow tubular structure. A locking pin rod 9 is sleeved inside the handle rod 7. One end of the locking pin rod 9 passes through the spring 8 and fits against the spring seat cap 10, while the other end passes through the pry head 4 and fits into the connecting seat 3. A rotary sleeve 6 is sleeved on the handle rod 7.

[0031] Example 2

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the figure, the double-channel rotary knob type hydraulic power tongs operating handle provided by the embodiment comprises a handle rod 7, the structure of the handle rod 7 is in the form of a hollow pipe, the handle rod 7 is sleeved with a locking pin pull rod 9, one end of the locking pin pull rod 9 is in contact with a spring seat cap 10 through a spring 8, the other end of the locking pin pull rod 9 is embedded in a connecting seat 3 through a prying head 4, and the handle rod 7 is sleeved with a rotary knob sleeve 6.

[0033] An annular protrusion is arranged on the handle rod 7, and a double-channel sliding rail 16 is opened on the annular protrusion, one end of the rotary knob sleeve 6 is closed, the outer wall of the other end of the rotary knob sleeve 6 is provided with an annular protrusion, and an annular groove is opened on the inner wall of the annular protrusion, and a small hole is opened on the end face of the closed end of the rotary knob sleeve 6 for cooperating with an inner hexagonal bolt 14.

[0034] The annular protrusion on the handle rod 7 is embedded in the annular groove on the rotary knob sleeve 6, two O-shaped rubber ring mounting grooves 18 are opened in the annular groove of the rotary knob sleeve 6, O-shaped rubber rings 5 are embedded in the O-shaped rubber ring mounting grooves 18, symmetrical sliding rail pin mounting holes 17 are opened on the annular protrusion on the rotary knob sleeve 6, sliding rail pins 15 are connected in the sliding rail pin mounting holes 17, and the sliding rail pins 15 are embedded in the double-channel sliding rail 16 after passing through the sliding rail pin mounting holes 17.

[0035] The rotary knob sleeve 6 is sleeved with a stainless steel sleeve 13, the stainless steel sleeve 13 is in the form of a hollow pipe, one end of the stainless steel sleeve 13 is closed, the end face of the other end of the stainless steel sleeve 13 is in contact with the edge of the annular protrusion of the rotary knob sleeve 6, and a small hole is opened on the end face of the closed end of the stainless steel sleeve 13 for cooperating with the inner hexagonal bolt 14.

[0036] Embodiment 3

[0037] As shown in the figure, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in the figure, the double-channel rotary knob type hydraulic power tongs operating handle provided by the embodiment comprises a handle rod 7, the structure of the handle rod 7 is in the form of a hollow pipe, the handle rod 7 is sleeved with a locking pin pull rod 9, one end of the locking pin pull rod 9 is in contact with a spring seat cap 10 through a spring 8, the other end of the locking pin pull rod 9 is embedded in a connecting seat 3 through a prying head 4, and the handle rod 7 is sleeved with a rotary knob sleeve 6.

[0038] An annular protrusion is arranged on the handle rod 7, and a double-channel sliding rail 16 is opened on the annular protrusion, one end of the rotary knob sleeve 6 is closed, the outer wall of the other end of the rotary knob sleeve 6 is provided with an annular protrusion, and an annular groove is opened on the inner wall of the annular protrusion, and a small hole is opened on the end face of the closed end of the rotary knob sleeve 6 for cooperating with an inner hexagonal bolt 14.

[0039] The annular protrusion on the handle rod 7 is embedded in the annular groove on the knob sleeve 6, two O-shaped rubber ring mounting grooves 18 are opened in the annular groove of the knob sleeve 6, the O-shaped rubber ring 5 is embedded in the O-shaped rubber ring mounting groove 18, the annular protrusion on the knob sleeve 6 is symmetrically provided with a sliding rail pin mounting hole 17, and the sliding rail pin mounting hole 17 is connected with the sliding rail pin 15, and the sliding rail pin 15 is embedded in the double-way sliding rail 16 after passing through the sliding rail pin mounting hole 17.

[0040] The knob sleeve 6 is sleeved with a stainless steel sleeve 13, the stainless steel sleeve 13 is in the form of a hollow pipe, one end of the stainless steel sleeve 13 is closed, and the other end is in contact with the edge of the annular protrusion of the knob sleeve 6, and a small hole is opened on the end face of the closed end of the stainless steel sleeve 13 for cooperation with the inner hexagonal bolt 14.

[0041] The stainless steel sleeve 13 is sleeved with a rubber sleeve 11, the closed end face of the stainless steel sleeve 13 is in contact with the waterproof cover 12, the waterproof cover 12 is in the form of a circular cover, the waterproof cover 12 is in contact with the end face of the stainless steel sleeve 13, a small hole is opened on the cover face of the waterproof cover 12 for cooperation with the inner hexagonal bolt 14, the edge of the cover face of the waterproof cover 12 is in contact with one end of the rubber sleeve 11, and the other end of the rubber sleeve 11 is in contact with the edge of the annular protrusion of the knob sleeve 6.

[0042] The lock pin pull rod 9 is embedded in the connecting seat 3 and is provided with a lock tongue at one end, a lock hole is opened on the connecting seat 3 for cooperation with the lock tongue, and an internal thread is opened on the end face of the other end of the lock pin pull rod 9 and is used in cooperation with the inner hexagonal bolt 14.

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

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

Claims

1. A dual channel rotary knob operated hydraulic power tong handle characterized by: Handle rod (7) is hollow tubular structure, the handle rod (7) is covered with lock pin pull rod (9), one end of the lock pin pull rod (9) is through spring (8) and spring seat cap (10) fit, the other end is through pry head (4) and is embedded with connecting seat (3), the handle rod (7) is covered with knob sleeve (6); The handle rod (7) is provided with annular protrusion, and the annular protrusion is provided with double-pass slide rail (16), one end of the knob sleeve (6) is closed, the other end is provided with annular protrusion, and the annular protrusion is provided with annular groove, the closed end of the knob sleeve (6) is provided with small hole and is used with internal hexagonal bolt (14); The annular protrusion on the handle rod (7) is embedded in the annular groove on the knob sleeve (6), the annular groove in the knob sleeve (6) is provided with two O-shaped rubber ring installation grooves (18), the O-shaped rubber ring installation groove (18) is embedded with O-shaped rubber ring (5), the annular protrusion on the knob sleeve (6) is symmetrically provided with slide rail pin installation hole (17), the slide rail pin installation hole (17) is connected with slide rail pin (15), the slide rail pin (15) is embedded in the double-pass slide rail (16) after passing through the slide rail pin installation hole (17). One end of the handle rod (7) is in contact with one end of the spring (8), the other end of the spring (8) is in contact with the spring seat cap (10), the other end of the handle rod (7) is covered with the pry head (4), and the pry head (4) is connected with the connecting seat (3) through the connecting pin (2).

2. The dual channel knob operated hydraulic power tong handle of claim 1, wherein: The knob sleeve (6) is covered with stainless steel sleeve (13), the stainless steel sleeve (13) is hollow pipe shape, one end of the stainless steel sleeve (13) is closed, the other end is in contact with the annular protrusion edge of the knob sleeve (6), and the closed end of the stainless steel sleeve (13) is provided with small hole and is used with internal hexagonal bolt (14).

3. The dual channel, knob operated hydraulic power tong handle of claim 2, wherein: The stainless steel sleeve (13) is covered with rubber sleeve (11), the closed end of the stainless steel sleeve (13) is in contact with waterproof cover (12), the waterproof cover (12) is circular cover shape, the waterproof cover (12) is in contact with the end surface of the stainless steel sleeve (13), the cover surface of the waterproof cover (12) is provided with small hole and is used with internal hexagonal bolt (14), the cover surface edge of the waterproof cover (12) is in contact with one end of the rubber sleeve (11), and the other end of the rubber sleeve (11) is in contact with the annular protrusion edge of the knob sleeve (6).

4. The dual channel, knob operated hydraulic power tong handle of claim 3, wherein: The lock pin pull rod (9) is embedded with lock tongue at one end of the connecting seat (3), the connecting seat (3) is provided with lock hole and is used with lock tongue, and the end surface of the other end of the lock pin pull rod (9) is provided with internal thread and is used with internal hexagonal bolt (14).

5. The dual channel, knob operated hydraulic power tong handle of claim 4, wherein: The internal hexagonal bolt (14) passes through the small hole on the waterproof cover (12), the small hole on the end surface of the stainless steel sleeve (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).

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