SUMMERY OF THE UTILITY MODEL
In order to facilitate the operation of staff, improve the dismouting efficiency of oil pipe head simultaneously, this application provides an oil pipe head connecting device.
The application provides a tubing head connecting device adopts following technical scheme:
an oil pipe head connecting device comprises an oil pipe head, two first connecting discs, two second connecting discs and a plurality of rotating shafts, wherein the two first connecting discs are respectively arranged at two ends of the oil pipe head, the two second connecting discs are respectively arranged on a sleeve head and a reducing connecting head and are used for being connected with the oil pipe head, the rotating shafts are arranged on the first connecting discs, and the axes of the rotating shafts are parallel to the first connecting discs and are vertical to the radial direction of the first connecting discs; the connecting device also comprises a connecting rod rotatably sleeved on the rotating shaft, a clamping block arranged on the connecting rod and used for abutting against the second connecting disc and far away from one side wall of the first connecting disc, and an inclined plane arranged on the abutting surface of the clamping block and the second connecting disc, wherein the distance from the inclined plane to the second connecting disc is gradually increased along the direction of the clamping block close to the axis of the second connecting disc; the oil pipe head is also provided with a rotating mechanism for rotating a plurality of connecting rods at two ends of the oil pipe head simultaneously.
Through adopting above-mentioned technical scheme, the staff just to two second connection pads respectively earlier with two first connection pads, then comes the many connecting rods that rotate simultaneously on two first connection pads through slewing mechanism, and the connecting rod will drive the joint piece that corresponds and rotate, supports tightly on the second connection pad that corresponds until the joint piece, and a plurality of joint pieces just can support the second connection pad that corresponds on first connection pad. Simultaneously, the inclined plane on the joint piece can produce the pressure of a orientation first connection pad to the second connection pad, along with the joint piece with the tighter of second connection pad butt, the inclined plane on the joint piece is bigger to the effort that the second connection pad produced, the second connection pad will be inseparabler with first connection pad butt ground, has guaranteed the leakproofness between first connection pad and the second connection pad to the installation of oil pipe head has been accomplished. When the oil pipe head needs to be disassembled, the worker orders the connecting rods to drive the corresponding clamping blocks to be separated from the second connecting disc through the rotating mechanism. Compared with the prior art, the scheme saves the operation of locking the bolt by workers and rotating the nuts one by one, facilitates the operation of the workers and improves the disassembly and assembly efficiency of the oil pipe head.
Preferably, the rotating mechanism comprises a traction rod fixedly connected to one end, close to the rotating shaft, of the connecting rod, a through hole, a connecting column, two supporting rods, two circular rings and a driving assembly, wherein the through hole is formed in the traction rod in the length direction of the traction rod and is communicated with the side walls of the two sides of the traction rod, the connecting column is embedded in the through hole in a sliding mode in the length direction of the traction rod, the two supporting rods are arranged at the two ends of the connecting column, the two circular rings are sleeved on the oil pipe head in a sliding mode and are fixedly connected with the plurality of supporting rods at the.
Through adopting above-mentioned technical scheme, the staff slides the ring through drive assembly, and branch will drive the spliced pole and follow the ring and remove, spliced pole alright order about the traction lever through the butt through-hole inside wall and rotate to the connecting rod just can drive the joint piece and rotate. When the two circular rings are close to each other, the clamping blocks at the two ends of the oil pipe head can simultaneously abut against the corresponding second connecting discs; when the two circular rings are far away from each other, the clamping blocks at the two ends of the oil pipe head can be separated from the corresponding second connecting discs at the same time. The rotating mechanism is simple in structure principle and very convenient and fast to operate.
Preferably, the driving assembly comprises a threaded rod which is rotatably connected between the two first connecting discs and is parallel to the axis of the oil pipe head, the threaded rod penetrates through the two circular rings and is in threaded fit with the two circular rings, the threaded rod is divided into two sections with opposite spiral directions, and the two circular rings are in threaded fit with the two sections respectively; the drive assembly also includes a power member disposed on the tubing head for rotating the threaded rod.
Through adopting above-mentioned technical scheme, the staff rotates the threaded rod through the power spare, pulls with the position restraint combined action of oil pipe head to the ring at the screw of two segmentations, and two rings just can be close to each other or keep away from each other, and drive assembly's simple structure makes things convenient for staff's operation, has practiced thrift the manufacturing cost of equipment.
Preferably, the power part comprises a worm wheel fixedly sleeved on the threaded rod, a worm rotatably connected to the oil pipe head and meshed with the worm wheel, and a crank arranged at one end of the worm far away from the oil pipe head.
Through adopting above-mentioned technical scheme, the staff rotates the worm through the crank, and under the combined action of worm and worm wheel, the threaded rod will take place to rotate. And the staff can rotate the worm in succession through the crank, compares in rotating the bolt with the spanner, and the mode efficiency of this kind of rotatory crank is higher, and the simple operation nature is better. And because the linkage structure of the worm gear and the worm has the functions of amplifying torque and self-locking, the resistance of workers in rotating the worm is reduced, and the operation of limiting the rotation of the threaded rod by the workers is also saved, so that the operation of the workers is further facilitated.
Preferably, one end of the worm close to the hand crank is provided with a slot with a polygonal cross section, and the hand crank is fixedly connected with an insertion block which is in insertion fit with the slot.
Through adopting above-mentioned technical scheme, when needs rotatory worm, in the staff inserts the slot with the inserted block on the crank, the staff can rotate the worm through the crank. When the worm does not need to be rotated, the worker takes the hand crank off the worm, and the occupied space of the hand crank on the oil pipe head can be saved.
Preferably, the second connecting disc is provided with an embedding groove matched with the clamping block in a clamping manner.
Through adopting above-mentioned technical scheme, the caulking groove is through cooperating with the joint piece, can restrict the second connection pad rotatory, has effectively avoided the second connection pad because of rotatory and the emergence of the first connection pad dislocation condition, has reduced the probability that takes place the seepage between first connection pad and the second connection pad.
Preferably, the cross section of the connecting rod is provided in an arc shape.
Through adopting above-mentioned technical scheme, the setting of connecting rod arc cross section has promoted the bending resistance of connecting rod, has reduced the connecting rod bending and has caused the probability that the joint piece breaks away from the second connecting plate, has increased the stability that first connecting plate and second connecting plate are connected.
Preferably, a rotating drum is rotatably sleeved on the connecting column.
Through adopting above-mentioned technical scheme, the rotary drum can be with the sliding friction conversion between spliced pole and the through-hole inside wall for rolling friction, has reduced the resistance that the spliced pole received when sliding in the through-hole to a certain extent, and branch drives the traction lever and rotates and will be more smooth.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the oil pipe head, the first connecting disc, the second connecting disc, the connecting rod, the clamping block, the inclined plane and the rotating mechanism, the operation of locking the bolt and rotating the nut one by workers is omitted, the operation of the workers is facilitated, and the assembly and disassembly efficiency of the oil pipe head is improved;
2. through the arrangement of the threaded rod and the power part, the operation of workers is facilitated, and the manufacturing cost of equipment is reduced;
3. through the arrangement of the worm wheel, the worm and the hand crank, the operation convenience of workers is improved, the resistance of the workers in rotating the worm is reduced, and meanwhile, the operation of limiting the rotation of the threaded rod by the workers is also omitted;
4. through the setting of caulking groove, restricted the second and linked the dish rotation, reduced the probability that takes place the seepage between first connection dish and the second connection dish.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
Referring to fig. 1, an oil pipe head connecting device comprises an oil pipe head 1, two first connecting discs 2 respectively arranged at two ends of the oil pipe head 1, two second connecting discs 3 respectively arranged on a casing head and a reducing pipe joint, and six rotating shafts 4 distributed on the first connecting discs 2 at equal angles at intervals, wherein the axes of the rotating shafts 4 are parallel to the first connecting discs 2 and are perpendicular to the radial direction of the first connecting discs 2; the connecting device also comprises a connecting rod 5 which is rotatably sleeved on the rotating shaft 4 and has an arc-shaped cross section, and a clamping block 6 which is fixedly connected to one end of the connecting rod 5 far away from the rotating shaft 4, wherein the clamping block 6 is used for abutting against one side wall of the second connecting disc 3 far away from the first connecting disc 2; the connecting device further comprises an inclined plane 7 arranged on one surface, abutted against the second connecting disc 3, of the clamping block 6, and the distance from the inclined plane 7 to the second connecting disc 3 is gradually increased along the direction, close to the axis of the second connecting disc 3, of the clamping block 6. Just respectively behind two second connection pads 3 when two first connection pads 2, the staff orders about six connecting rods 5 on the first connection pad 2 and all rotates towards corresponding second connection pad 3, and joint piece 6 will follow connecting rod 5 and rotate, until supporting tightly on second connection pad 3, and six joint pieces 6 just can support corresponding second connection pad 3 on first connection pad 2 simultaneously. Inclined plane 7 on the joint piece 6 can produce a pressure towards first connection pad 2 to second connection pad 3, along with joint piece 6 with second connection pad 3 support tight more, inclined plane 7 on the joint piece 6 is big more to the pressure that second connection pad 3 produced, second connection pad 3 will be inseparabler with what first connection pad 2 is connected, has guaranteed the leakproofness between first connection pad 2 and the second connection pad 3 to the installation of oil pipe head 1 has been accomplished. When the oil pipe head 1 needs to be disassembled, the worker rotates the connecting rod 5 to enable the clamping block 6 to be separated from the second connecting disc 3.
Referring to fig. 1 and 2, a drawbar 8 is fixedly connected to one end of the connecting rod 5 close to the rotating shaft 4, and an angle between the drawbar 8 and the connecting rod 5 towards the first connecting plate 2 is an obtuse angle; the draw bar 8 is provided with a strip-shaped through hole 9 communicated with the side walls of the two sides of the draw bar 8, and the length direction of the through hole 9 is the same as that of the draw bar 8. A connecting column 10 is embedded in the through hole 9 in a sliding mode along the length direction of the traction rod 8, and a rotary drum 11 used for reducing sliding friction is rotatably sleeved on the connecting column 10. Two ends of the connecting column 10 are fixedly connected with a supporting rod 12, and the supporting rod 12 is parallel to the first connecting disc 2; the oil pipe head 1 is slidably sleeved with two circular rings 13, and the two circular rings 13 are fixedly connected with all the support rods 12 on the two ends of the oil pipe head 1 respectively. A threaded rod 14 is rotatably connected between the two first connecting discs 2, the length direction of the threaded rod 14 is parallel to the axis of the oil pipe head 1, the threaded rod 14 penetrates through the two circular rings 13 and is in threaded fit with the two circular rings 13, the threaded rod 14 is divided into two sections with opposite spiral directions, and the two circular rings 13 are in threaded fit with the two sections respectively; the tubing head 1 is also provided with a power member 15 for driving the threaded rod 14 to rotate. Wherein the threaded rod 14 and the power piece 15 form a driving assembly; the traction rod 8, the through hole 9, the connecting column 10, the support rod 12, the circular ring 13 and the driving component form a rotating mechanism. The operator rotates the threaded rod 14 by means of the power element 15, and the two rings 13 move toward or away from each other under the combined action of the two segmented thread pulls and the position constraint of the tubing head 1 on the rings 13. When the ring 13 slides on the tubing head 1, the support rod 12 drives the connecting column 10 to move along with the ring 13, the connecting column 10 drives the traction rod 8 to rotate by abutting against the inner side wall of the through hole 9, and the connecting rod 5 drives the clamping block 6 to rotate. When the two circular rings 13 approach each other, the six clamping blocks 6 will be simultaneously abutted against the corresponding second connecting discs 3; when the two rings 13 are far away from each other, the six clamping blocks 6 will be separated from the corresponding second connecting discs 3 at the same time.
Referring to fig. 2, the power member 15 includes a worm wheel 151 fixedly secured to the threaded rod 14, a worm 152 rotatably connected to the tubing head 1 and engaged with the worm wheel 151, and a crank 153 disposed at an end of the worm 152 remote from the tubing head 1. The operator rotates the worm 152 by means of the hand lever 153, and the threaded rod 14 is rotated by the cooperation of the worm 152 and the worm wheel 151. Firstly, the staff can rotate worm 152 in succession through hand crank 153, and the mode efficiency of this kind of rotatory hand crank 153 is higher, secondly because the linkage structure of worm wheel 151 worm 152 has the function of enlarged torque and auto-lock, and this resistance that receives when not only having reduced the staff rotatory worm 152 has still saved the operation that the staff restricted threaded rod 14 was rotatory simultaneously.
One end of the worm 152 close to the hand crank 153 is provided with a slot 16 with a rectangular cross section, and the hand crank 153 is fixedly connected with an inserting block 17 which is inserted and matched with the slot 16. The staff can decide whether to rotate the worm 152 with the hand crank 153 according to the needs, and when the worm 152 needs to be rotated, the staff can rotate the worm 152 by inserting the insert block 17 on the hand crank 153 into the slot 16. When the worm 152 does not need to be rotated, the worker takes the hand crank 153 off the worm 152, so that the occupied space of the hand crank 153 on the tubing head 1 can be saved, and the flexibility of the device is improved.
Referring to fig. 1, in order to avoid the second connecting disc 3 from being dislocated with the first connecting disc 2 due to rotation, the second connecting disc 3 is provided with an embedding groove 18 which is in clamping fit with the corresponding clamping block 6. The caulking groove 18 can restrict the rotation of the second connecting disc 3 by matching with the clamping block 6, and the probability of leakage between the first connecting disc 2 and the second connecting disc 3 is reduced.
The implementation principle of the embodiment is as follows: the operator rotates the threaded rod 14 by means of the power element 15, and the two rings 13 move toward or away from each other under the combined action of the two segmented thread pulls and the position constraint of the tubing head 1 on the rings 13. When two rings 13 are close to each other, six connecting rods 5 on first connection pad 2 will rotate towards corresponding second connection pad 3 simultaneously, until joint piece 6 supports tightly on corresponding second connection pad 3, six joint pieces 6 just can support corresponding second connection pad 3 on first connection pad 2. The inclined plane 7 on the clamping block 6 can generate pressure towards the first connecting disc 2 on the second connecting disc 3, the second connecting disc 3 and the first connecting disc 2 are abutted to be more compact, the sealing performance between the first connecting disc 2 and the second connecting disc 3 is guaranteed, and therefore the installation of the oil pipe head 1 is completed. When two rings 13 keep away from each other, six connecting rods 5 will drive joint piece 6 and the second connection pad 3 that corresponds and break away from, and the staff can dismantle oil pipe head 1.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.