CN111375606B - Puller structure for pigs - Google Patents
Puller structure for pigs Download PDFInfo
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- CN111375606B CN111375606B CN201811628256.1A CN201811628256A CN111375606B CN 111375606 B CN111375606 B CN 111375606B CN 201811628256 A CN201811628256 A CN 201811628256A CN 111375606 B CN111375606 B CN 111375606B
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- barrel
- sleeve
- cavity
- spring
- pin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to the technical field of cleaning of conveying pipelines and provides a pull head structure for a pipe cleaner. The structure comprises a connector (1), a barrel (2), an elastic clamping mechanism (3) and a transition piece (6). The first end of the barrel body (2) is closed and provided with the connector (1), the second end opposite to the first end is provided with an opening, the elastic clamping mechanism (3) is arranged on the outer wall of the barrel body (2) and comprises a sleeve (31), an ejector rod (35), a spring (34) and a top cover (37) which are sleeved on the ejector rod (35), one end of the spring (34) is connected with the ejector rod (35), the other end of the spring abuts against the top cover (37), the ejector rod (35) is positioned in the sleeve (31), and the inclined plane of the front end extending into the barrel body (2) retracts into the sleeve (31) when being pressed; the inner diameter of the first end of the transition piece (6) is smaller than that of the second end, and the first end is connected with the second end of the cylinder body (2). The pull head structure can be used for quickly connecting a pipe cleaner.
Description
Technical Field
The invention relates to the technical field of cleaning of conveying pipelines, in particular to a pull head structure for a pipe cleaner.
Background
The pipeline transportation has the advantages of large transportation amount, continuous transportation, low operation cost and the like, and is widely applied to the transportation of oil, water and gas fluids. After the pipeline cleaning device is used for a period of time, substances such as sediments, accumulated water, condensate oil and the like can be generated inside the conveying pipeline, and the conveying operation is influenced, so that the cleaning of the conveying pipeline is an important work for the production of the conveying pipeline.
At present, a pipe cleaner is adopted to clean a conveying pipeline. When carrying out the dredging pipe operation, need drag the pig from the pipeline, among the prior art, in the staff got into the pipeline, passed through threaded connection with the ring on pull head and the pig, later dragged the pig out the pipeline through outwards dragging the pull head.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems: the pull head is connected with the circular ring on the pipe cleaner, so that a worker is required to enter the pipeline to manually connect the pull head and the pipe cleaner, the operation is complex and time-consuming, and the working efficiency of the pipe cleaner is low.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a pulling head structure for a pipe cleaner, which is connected to the pipe cleaner simply and quickly to improve working efficiency, and the technical scheme is as follows:
a pull head structure for a pipe cleaner, which comprises a connector, a cylinder body and an elastic clamping mechanism, wherein,
the first end of the cylinder body is closed, the second end opposite to the first end is opened, and the elastic clamping mechanism is arranged on the outer wall of the cylinder body close to the second end;
the connector is arranged at the first end of the cylinder;
the elastic clamping mechanism comprises a sleeve, a spring, an ejector rod and a top cover, wherein the inner cavity of the sleeve is communicated with the inner cavity of the barrel, the spring and the ejector rod are positioned in the inner cavity of the sleeve, the spring is sleeved on the ejector rod, the top cover is arranged at a port of one end, far away from the barrel, of the sleeve, one end, close to the barrel, of the spring is connected with the ejector rod, one end, far away from the barrel, of the spring is abutted against the top cover, the ejector rod extends into the inner cavity of the barrel, an inclined plane is arranged at the front end, extending into the inner cavity of the barrel, of the ejector rod, and when the inclined plane is pressed, the front end of the ejector rod retracts into the sleeve;
the both ends opening of transition piece, the internal diameter of first end is less than the internal diameter of relative second end, just the first end of transition piece with the second end of barrel is connected.
Optionally, the front end of the connector comprises a cylinder, the cylinder is provided with a first pin hole, an axis of the first pin hole is perpendicular to an axis of the cylinder, and the cylinder is suitable for being connected with a push rod through the first pin hole.
Optionally, the cap is of unitary construction with the sleeve.
Optionally, the top cover comprises a second pin hole, the diameter of the second pin hole is larger than that of the ejector rod, and the ejector rod is suitable for passing through.
Optionally, the top cap further comprises a pin, and the pin penetrates through the second pin hole to be connected with one end, far away from the cylinder, of the ejector rod and is suitable for driving the ejector rod to rotate and move up and down.
Optionally, the elastic clamping mechanism further comprises a baffle, the diameter of the baffle is larger than that of the ejector rod, the baffle is fixed on the ejector rod, one end, close to the barrel, of the spring is abutted against the baffle, and the baffle is suitable for limiting the spring to one end, far away from the barrel, in the inner cavity of the sleeve.
Optionally, the inner cavity of the sleeve includes a first cavity and a second cavity, the first cavity is located at one end of the sleeve far away from the barrel, the second cavity is located at one end of the sleeve close to the barrel, the baffle is located in the first cavity, the diameter of the first cavity is equal to that of the baffle, the diameter of the second cavity is equal to that of the ejector rod, and the second cavity is suitable for preventing the baffle from entering the second cavity.
Optionally, the connector, the barrel and the elastic clamping mechanism are integrated.
Optionally, the number of the elastic clamping mechanisms is at least three, and the elastic clamping mechanisms are uniformly arranged on the outer wall of the barrel body at intervals along the circumferential direction.
Optionally, the transition piece is trumpet-shaped, and a plurality of balls are evenly arranged on the inner wall of the transition piece at intervals along the circumferential direction, and the balls are suitable for rolling to reduce friction between the collision head of the pipe cleaner and the inner wall of the transition piece.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the outer side of one end of the opening of the cylinder body of the puller structure provided by the embodiment of the invention is provided with the elastic clamping mechanism, and the ejector rod in the sleeve of the elastic clamping mechanism is clamped with the collision head of the pipe cleaner, so that the puller structure is clamped and fixed with the pipe cleaner. The front end of ejector pin is the inclined plane, when the inclined plane of ejector pin was towards the open-ended one end of barrel, the inclined plane of ejector pin is extruded to the outer wall of the head of dredging pipe ware, promote the ejector pin rebound, the spring shrink, get into the sleeve completely at the ejector pin, the head of dredging pipe ware passes through the ejector pin after, the ejector pin is downstream under the effect of spring, the ejector pin gets into the inner chamber of barrel again, the lateral wall relative with the inclined plane of ejector pin front end and the back contact of the head of dredging pipe ware that hits, thereby with the head joint of ejector pin and dredging pipe ware, again through being connected push rod and connector, drive the dredging pipe ware motion when pulling this pull head structure. In the process that whole pull head structure and dredging pipe ware are connected, do not need the staff to get into pipeline manual connection, the internal diameter of transition piece second end is big, makes things convenient for the entering of colliding, and the collision can get into the barrel inner chamber with pull head structure relative movement in the transition piece to convenient quick messenger collides head and ejector pin joint. And the pull head structure is simple in structure and convenient to operate, and the working efficiency of the pipe cleaner is improved.
Drawings
In order to more clearly illustrate the technical solution in the embodiment of the present invention, the following will briefly describe the accompanying drawings required in the description of the embodiment.
FIG. 1 is a schematic structural diagram of a slider structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the slider structure provided by the embodiment of the present invention when the spring and the ejector pin are not installed;
fig. 3 is a schematic structural diagram of the pulling head structure provided by the embodiment of the invention when the pulling head structure is connected with the collision head of the pipe cleaner;
fig. 4 is a schematic structural diagram of the pulling head structure provided by the embodiment of the invention when the pulling head structure is separated from the collision head of the pipe cleaner;
fig. 5 is a schematic structural diagram of the connection between the connector and the push rod of the slider structure according to the embodiment of the present invention.
The reference numerals in the drawings denote:
1-a connector; 11-a first pin hole; 12-a pin;
2, a cylinder body;
3-elastic clamping mechanism; 31-a sleeve; 32-a first cavity; 33-a second cavity; 34-a spring; 35-a top rod; 36-a baffle; 37-a top cover; 371 — second pin hole; 372-pins;
4-collision of the pipe cleaner;
5, a push rod;
6-transition piece; 61-ball.
Detailed Description
The pull head structure for the pipe cleaner provided by the embodiment of the invention comprises a connector, a barrel, an elastic clamping mechanism and a transition piece. The cylinder body is a cylinder with a closed first end and an open second end opposite to the first end, and the elastic clamping mechanism is arranged on the outer wall of the cylinder body close to the second end; the connector is arranged at the first end of the cylinder body; the elastic clamping mechanism comprises a sleeve, a spring, a top rod and a top cover, wherein the inner cavity of the sleeve is communicated with the inner cavity of the barrel, the spring and the top rod are positioned in the inner cavity of the sleeve, the spring is sleeved on the top rod, the top cover is arranged at a port of one end, far away from the barrel, of the sleeve, one end, close to the barrel, of the spring is connected with the top rod, one end, far away from the barrel, of the spring is abutted against the top cover, the top rod extends into the inner cavity of the barrel, an inclined plane is arranged at the front end, extending into the inner cavity of the barrel, of the top rod, and the front end of the top rod retracts into the sleeve when the inclined plane is pressed; the both ends opening of transition piece, the internal diameter of first end is less than the internal diameter of relative second end, and the first end of transition piece is connected with the second end of barrel.
The outer side of one end of the opening of the barrel of the puller structure provided by the embodiment of the invention is provided with the elastic clamping mechanism, and the ejector rod in the sleeve of the elastic clamping mechanism is clamped with the pushing head of the pipe cleaner, so that the puller structure is clamped and fixed with the pipe cleaner. The front end of ejector pin is the inclined plane, when the inclined plane of ejector pin was towards the open-ended one end of barrel, the inclined plane of ejector pin is extruded to the outer wall of the head of dredging pipe ware, promote the ejector pin rebound, the spring shrink, get into the sleeve completely at the ejector pin, the head of dredging pipe ware passes through the ejector pin after, the ejector pin is downstream under the effect of spring, the ejector pin gets into the inner chamber of barrel again, the lateral wall relative with the inclined plane of ejector pin front end and the back contact of the head of dredging pipe ware that hits, thereby with the head joint of ejector pin and dredging pipe ware, again through being connected push rod and connector, drive the dredging pipe ware motion when pulling this pull head structure. At the in-process that whole pull head structure and dredging pipe ware are connected, do not need the staff to get into pipeline manual connection, the big convenient entering of colliding of internal diameter of transition piece second end to the colliding can get into the barrel inner chamber with pull head structure relative movement in the transition piece, thereby convenient quick messenger hits and ejector pin joint. And the pull head structure is simple in structure and convenient to operate, and the working efficiency of the pipe cleaner is improved.
In order to make the technical solutions and advantages of the embodiments of the present invention clearer, the following will describe the embodiments of the present invention in further detail with reference to the accompanying drawings.
The embodiment of the invention provides a pull head structure for a pipe cleaner, and fig. 1 is a structural schematic diagram of the pull head structure provided by the embodiment of the invention; FIG. 2 is a schematic structural view of the slider structure provided by the embodiment of the present invention when the spring and the ejector pin are not installed; fig. 3 is a schematic structural diagram of the pulling head structure provided by the embodiment of the invention when the pulling head structure is connected with the collision head of the pipe cleaner; fig. 4 is a schematic structural diagram of the pulling head structure provided by the embodiment of the invention when the pulling head structure is separated from the collision head of the pipe cleaner; fig. 5 is a schematic structural diagram of the connection between the connector and the push rod of the slider structure according to the embodiment of the present invention.
Referring to fig. 1-2, the slider structure comprises a connector 1, a barrel 2, an elastic clamping mechanism 3 and a transition piece 6.
In this application, the first end of barrel 2 is sealed and with the relative second end opening of first end, elasticity latch mechanism 3 sets up on the outer wall of barrel 2 near the second end.
For example, referring to fig. 1, in the embodiment of the present application, the cylinder 2 may be a cylinder, the cylinder includes a first end and a second end opposite to each other, the first end is closed, the second end is open, so that the inner cavity of the cylinder facilitates the movement of the plunger 4 of the pig, and the elastic clamping mechanism 3 is disposed on the outer wall of the cylinder 2 near the second end, so as to minimize the distance from the plunger 4 entering the inner cavity of the cylinder 2 and accelerate the connection between the slider structure and the plunger 4 of the pig.
In addition, in the embodiment of the present application, referring to fig. 4, there are at least three elastic clamping mechanisms 3, and the elastic clamping mechanisms 3 are uniformly arranged on the outer wall of the cylinder 2 at intervals along the circumferential direction, and a plurality of elastic clamping mechanisms 3 can clamp the collision head 4 of the pipe cleaner from a plurality of directions, so as to ensure the stability of clamping between the structure of the pull head and the collision head 4 of the pipe cleaner, and a plurality of elastic clamping mechanisms 3 are uniformly arranged on the outer wall of the cylinder 2 at intervals along the circumferential direction, so as to ensure that the collision head 4 and the ejector rod 35 of each elastic clamping mechanism 3 are synchronously clamped. Of course, the present application is not limited to this, and in other embodiments of the present application, the number of the elastic clamping mechanisms 3 may be changed according to practical situations.
For example, in the embodiment of the present application, referring to fig. 3, the plunger 4 of the pig may be in a truncated cone shape, and the diameter of the plunger 4 may be gradually increased along the direction in which the slider structure moves backward relative to the plunger 4, and the maximum diameter of the plunger 4 may be equal to the inner diameter of the barrel 2, but of course, in order to ensure that the slider structure moves more smoothly relative to the plunger 4 of the pig, the maximum diameter of the plunger 4 of the pig may be slightly smaller than the inner diameter of the barrel 2.
In the present application, the connector 1 of the slider structure is arranged at a first end of the barrel 2.
For example, referring to fig. 1, the connector 1 of the slider structure is disposed at the first end of the cylinder 2 of the slider structure, i.e. the closed end of the cylinder 2, so that the entire slider structure can be conveniently connected with the piston rod or the push rod through the connector 1, and the operating length of the entire slider structure is lengthened.
In this application, the front end of the connector 1 may include a cylinder, the cylinder is provided with a first pin hole 11, and the axis of the first pin hole 11 is perpendicular to the axis of the cylinder, and the cylinder is suitable for being connected with the push rod 5 through the first pin hole 11
For example, referring to fig. 5, in the present embodiment, taking the push rod 5 as an example, the inner diameter of the push rod 5 may be larger than the outer diameter of the cylinder at the front end of the connecting head 1, the push rod 5 is sleeved outside the cylinder of the connecting head 1, the push rod 5 is also provided with a pin hole corresponding to the position of the first pin hole 11 on the connecting head 1, and the push rod 5 is connected with the connecting head 1 by passing a pin through the first pin hole 11 and the pin hole on the push rod 5, so as to connect the whole slider structure with the push rod 5. Of course, the present application is not limited thereto, and in other embodiments, the push rod 5 may be connected with the connecting head 1 by a bolt or other reasonable means, and a piston rod or other means may be used to connect the slider structure.
In this application, refer to fig. 1, elasticity latch mechanism 3 includes sleeve 31, spring 34, ejector pin 35 and top cap 37, and the inner chamber of sleeve 31 communicates with the inner chamber of barrel 2, and spring 34 suit is on ejector pin 35, and top cap 37 sets up the port of the one end of keeping away from barrel 2 at sleeve 31, and the one end that is close to barrel 2 of spring 34 is connected with ejector pin 35, and the one end of keeping away from barrel 2 of spring 34 leans on with top cap 37.
For example, in the embodiment of the present application, referring to fig. 1, the inner cavity of the sleeve 31 of the elastic clamping mechanism 3 is communicated with the inner cavity of the barrel 2, the push rod 35 can penetrate through the inner cavity of the whole sleeve 31, the spring 34 is sleeved on the push rod 35, one end of the spring 34 close to the barrel 2 is connected with the push rod 35, and one end of the spring 34 far from the barrel 2 abuts against the top cover 37. Spring 34 is connected with ejector pin 35, conveniently drives ejector pin 35 through spring 34 and takes place the displacement along the axial direction of sleeve 31 to hit head 4 joint through ejector pin 35 and pig.
For example, in the present embodiment, the top cover 37 is located at the port of the end of the sleeve 31 far from the cylinder 2, and the top cover 37 and the sleeve 31 may be of an integral structure, so as to limit the spring 34 in the inner cavity of the sleeve 31. Of course, the present application is not limited thereto, and in other embodiments, the top cover 37 may be fixed to the port of the sleeve 31 by welding, the top cover 37 may be snapped to the port of the sleeve 31, or the top cover 37 and the sleeve 31 may be fixed by other reasonable manners.
In addition, in the present embodiment, one end of the spring 34 may directly abut against the top cover 37, but the present application is not limited thereto, and in other embodiments, one end of the spring 34 may be fixed on the top cover 37 by welding or other reasonable manners.
In this application, ejector pin 35 stretches into the inner chamber of barrel 2, and the front end that stretches into the inner chamber of barrel 2 of ejector pin 35 is provided with the inclined plane, and the front end of ejector pin 35 retracts into sleeve 31 when the inclined plane pressurized.
For example, in the embodiment of the present application, referring to fig. 1, the ejector rod 35 may be a cylinder with a length greater than the depth of the sleeve 31, and is adapted to have one end of the ejector rod 35 extending into the inner cavity of the barrel 2, the front end of the ejector rod 35, that is, the end extending into the inner cavity of the barrel 2, is an inclined surface, the plunger 4 of the pig may be in a truncated cone shape, and the outer diameter thereof gradually increases from front to back, in the process that the plunger 4 of the pig extends into the inner cavity of the barrel 2, the inclined surface of the ejector rod 35 faces the opening direction of the barrel 2, the outer wall of the plunger 4 abuts against the inclined surface of the ejector rod 4, and as the slider structure moves back relative to the plunger 4, the outer wall of the plunger 4 and the inclined surface of the ejector rod 4 abut against each other, the ejector rod 35 generates displacement in the direction away from the barrel 2, so that the spring 34 contracts, after the plunger 4 of the pig completely passes through the ejector rod 35, the ejector rod 35 resets under the action of the spring 34, and the ejector rod 35 extends into the inner cavity of the barrel 2 again, the ejector rod 35 is located on the back of the collision head 4 of the pipe cleaner, and the collision head 4 is limited to leave from the inner cavity of the barrel 2, so that the whole puller structure is clamped with the pipe cleaner through the ejector rod 35.
Referring to fig. 2, the top cover 37 may include a second pin hole 371, and the second pin hole 372 may have a diameter larger than that of the push rod 35 and adapted to pass the push rod 35 therethrough.
In this embodiment, the top cover 37 may be provided with a second pin hole 371, that is, the top cover 37 may be a circular ring, and the inner diameter of the circular ring, that is, the diameter of the second pin hole 371, may be greater than the diameter of the ejector rod 37, the ejector rod 37 penetrates through the inner cavity of the whole sleeve 31 and extends into the inner cavity of the cylinder 2, when the ejector rod 35 is pushed by the outer wall of the ram 4 of the pig, the ejector rod 35 moves in the direction away from the cylinder 2, that is, the ejector rod 35 may pass through the second pin hole 371, whose diameter is greater than the diameter of the ejector rod 35, so that the ejector rod 35 temporarily retracts into the inner cavity of the cylinder 2 and the inner cavity of the sleeve 31.
Referring to fig. 2, the top cover 37 may further include a pin 372, the pin 372 passes through the second pin hole 371 to be connected to an end of the push rod 35 away from the cylinder 2, and the pin 372 is adapted to drive the push rod 35 to rotate and move up and down.
In this embodiment, the pin 372 can be connected with the ejector pin 35 through the second pin hole 371, for example, before the slider structure enters the pipeline, the ejector pin 35 can be rotated by the pin 372, so that the inclined surface of the ejector pin 35 faces the second end of the barrel 2, i.e. the open end, and then the slider structure is directly inserted into the pipeline to be connected with the plunger 4 of the pipeline pig, without the need for a worker to enter the pipeline for operation.
In addition, after pulling the pipe cleaner out of the conveying pipeline, the pin 372 can rotate the ejector rod 35 by 180 degrees to enable the inclined plane of the ejector rod 35 to move towards the first end of the cylinder 2, namely the closed end, and the puller structure is continuously pulled, the collision head 4 of the pipe cleaner in the inner cavity of the cylinder 2 and the puller structure move towards the direction far away from the inner cavity of the cylinder 2, in one implementation mode of the embodiment, the outer wall of the collision head 4 is pushed against the inclined plane of the ejector rod 35, so that the ejector rod 35 returns into the sleeve 31, the collision head 4 of the pipe cleaner is withdrawn from the inner cavity of the cylinder 2, and the ejector rod 35 and the collision head 4 of the pipe cleaner are unlocked. Of course, the application is not limited to this, in other implementation manners of this embodiment, the pin 372 may be lifted to drive the ejector rod 35 to move upwards, so that the ejector rod 35 retracts into the sleeve 31 from the inner cavity of the barrel 2, and the slider structure is pulled to unlock the pig from the slider, or the pig ram 4 may be unlocked from the inner cavity of the barrel 2 in other reasonable manners.
In the application, referring to fig. 1, the elastic clamping mechanism 3 may further include a stopper 36, the stopper 36 is fixed on the top rod 35, one end of the spring 34 close to the cylinder 2 is abutted against the stopper 36, and the stopper 36 is adapted to limit the spring 34 in the inner cavity of the sleeve 31 at one end far from the cylinder 2.
For example, in one implementation of the embodiment of the present application, referring to fig. 1, the baffle 36 may be located in a middle portion of the push rod 35, the baffle 36 and the push rod 35 may be an integral structure, and a diameter of the baffle 36 is larger than a diameter of the push rod 35. Of course, the present application is not limited to this, and in other implementations of the present embodiment, the baffle 36 and the top bar 35 may also be two parts, and are fixedly connected by welding or clamping or other reasonable means.
In this embodiment, the end of the spring 34 close to the barrel 2 may abut directly against the stop 36, so that the stop 35 and the cap 37 are adapted to confine the spring 34 in the upper part of the inner cavity of the sleeve 31. Of course, the present application is not limited thereto, and in other embodiments, the spring 34 and the retainer 36 may be connected by welding or other suitable means.
When the outer wall of the impact head 4 of the pipe cleaner pushes against the inclined plane of the ejector rod 35, the ejector rod 35 generates displacement in the direction away from the barrel 2, and then the baffle 36 fixedly connected with the ejector rod 35 can move in the direction away from the barrel 2, the baffle 36 can compress the spring 34, after the impact head 4 of the pipe cleaner passes through the ejector rod 35 completely, the ejector rod 35 is not pushed against any more, the baffle 36 moves in the direction close to the barrel 2 under the action of the spring 34, the ejector rod 35 is driven to move in the direction close to the barrel 2, the ejector rod 35 stretches into the inner cavity of the barrel 2 again, and the inner cavity of the impact head 4 is located, so that the impact head 4 is limited to leave from the inner cavity of the barrel 2.
In addition, in the present application, the inner cavity of the sleeve 31 may include a first cavity 32 and a second cavity 33, the first cavity 32 is located at one end of the sleeve 31 far from the cylinder 2, the second cavity 33 is located at one end of the sleeve 31 near the cylinder 2, the baffle 36 is located in the first cavity 32, the diameter of the first cavity 32 is equal to that of the baffle 36, the diameter of the second cavity 33 is equal to that of the ram 35, and the second cavity 33 is adapted to prevent the baffle 36 from entering the second cavity 33.
For example, referring to fig. 2, the inner cavity of the sleeve 31 may be divided into a first cavity 32 and a second cavity 33, the first cavity 32 may be located in the inner cavity of the sleeve 31 at an end far from the barrel 2, the second cavity may be located in the inner cavity of the sleeve 31 at an end near the barrel 2, that is, the inner cavity of the sleeve 31 is communicated with the inner cavity of the barrel 2 through the second cavity 33, the spring 34 may be retracted and restored in the first cavity 32, the baffle 36 may also be located in the first cavity 32, the baffle 36 may be moved along the axial direction of the sleeve 31 by the retraction and restoration of the spring 34, the push rod 35 may be located in the second cavity 33, and the push rod 35 may be moved along with the movement of the baffle 36 due to the fixed connection between the push rod 35 and the baffle 36.
For example, in the embodiment of the present application, referring to fig. 2, the inner diameter of the first cavity 32 may be greater than the inner diameter of the second cavity 33, and referring to fig. 1, the diameter of the baffle 36 may be equal to the inner diameter of the first cavity 32, and the diameter of the push rod 35 may be equal to the inner diameter of the second cavity 33, that is, the diameter of the baffle 36 is greater than the inner diameter of the second cavity 33, so that the baffle 36 is confined in the first cavity 32, the spring 34 is ensured to be maintained in a normal state, and the push rod 35 is prevented from generating a tensile force on the spring 34 due to gravity, so that the elasticity of the spring 34 is not restored, and the spring 34 is damaged. Of course, the present application is not limited thereto, and in other embodiments, other reasonable manners may be adopted.
Referring to fig. 1, the transition piece 6 is open at both ends, has an inner diameter smaller at a first end than at an opposite second end, and the first end of the transition piece 6 is connected to the second end of the cylinder 2.
For example, in one implementation of the embodiment of the present application, referring to fig. 4, the transition piece 6 may have a trumpet shape, both ends are open, the inner diameter of the first end may be slightly larger than the outer diameter of the cylinder 2, the first end of the transition piece 6 may be sleeved on the outer wall of the second end of the cylinder 2, and the first end of the transition piece 6 is fixedly connected with the second end of the cylinder 2 by bolts or welding. Of course, the embodiment of the present application is not limited thereto, and in other implementation manners of the embodiment of the present application, the outer diameter of the transition piece 6 may also be designed to be slightly smaller than the inner diameter of the cylinder 2, so as to sleeve the second end of the cylinder 2 on the first end of the transition piece 6, and it should be noted that, to ensure that the inner diameter of the first end of the transition piece 6 is larger than the maximum diameter of the collision head 4 of the pipe pig, the collision head 4 of the pipe pig can enter the inner cavity of the cylinder 2, so as to be clamped with the ejector rod 35.
Of course, the present application is not limited thereto, and in other implementations of the embodiments of the present application, the transition piece 6 may also be composed of a hollow cylinder and a truncated cone, and the inner diameter of the cylinder may be equal to the minimum inner diameter of the truncated cone, so that the hollow cylinder portion of the transition piece 25 is connected with the second end of the cylinder 2.
In addition, the maximum outer diameter of the transition piece 6 can be slightly smaller than the inner diameter of the pipeline, so that the collision head 4 can conveniently enter the inner cavity of the transition piece 6 in the process of pushing the collision head 4 into the inner cavity of the barrel 2, the collision head 4 is quickly aligned with the barrel 2, and the connection speed of the collision head 4 and the barrel 2 is improved. Of course, the present application is not limited to this for the diameter of the transition piece 6, and in other implementations of the embodiments of the present application, the diameter of the transition piece 6 may be designed to other reasonable values.
Referring to fig. 1, a plurality of balls 61 adapted to roll to reduce friction between the ram 4 and the inner wall of the transition piece 6 may be uniformly disposed on the inner wall of the transition piece 6 at intervals in the circumferential direction.
For example, in one implementation manner of the embodiment of the present application, since the diameter of the ram 4 is smaller than the inner diameter of the pipe, the transition piece 6 is connected to the second end of the barrel 2, and the diameter of the second end of the transition piece 6 is larger, so that the ram 4 can enter the inner cavity of the transition piece 6 conveniently, when the slider structure moves towards the ram 4, the ram 4 can be ensured to be always located in the inner cavity of the transition piece 6, and the ram 4 can enter the inner cavity of the barrel 2 quickly.
To reduce the friction between the ram 4 and the inner wall of the transition piece 6 during the movement of the ram 4 towards the slider structure, 8 balls 61 may be provided on the inner wall of the transition piece 6 at circumferentially spaced intervals adjacent the first end, the balls 61 being adapted to roll to reduce the friction between the ram 4 and the inner wall of the transition piece 6 during the alignment of the ram 4 with the cavity of the barrel 2.
In an implementation manner of the embodiment of the present application, the ball 251 may be a steel ball or an iron ball, a groove may be disposed on an inner wall of the transition piece 25, and a magnet is disposed on the inner wall of the groove, so that the ball 251 may be clamped in the groove of the inner wall of the transition piece 25 by magnetic force. Alternatively, in other implementations of the embodiments of the present application, the diameter at the outlet of the groove on the inner wall of the transition piece 25 may be set slightly smaller than the diameter of the ball 251 and have a certain elasticity, the shape of the groove is similar to the shape of the ball 251, and the diameter of the inside of the groove may be slightly larger than the diameter of the ball 25, so that the ball 25 is caught in the groove without falling, and the ball 25 is adapted to roll in the groove.
Of course, the present application is not limited to the foregoing method for disposing the balls 251, and in other implementations of the embodiments of the present application, the balls 251 may be rollably disposed on the inner wall of the transition piece 25 in other reasonable manners.
For the position and the number of the balls 61, the present application is not limited to the foregoing arrangement, in other implementation manners implemented in the present application, the balls 61 may be arranged at one or more of a position close to the first end, an intermediate position, and a position close to the second section on the inner wall of the transition piece 6, and different numbers of the balls 61 may also be arranged at different positions according to the inner diameter of the transition piece 6, for example, a relatively small number of the balls 61 may be arranged at a position relatively close to the first end, so as to prevent the balls 61 from affecting the ram 4 entering the inner cavity of the barrel 2 too much, or a relatively large number of the balls 61 may be arranged at a position relatively close to the second end, so as to prevent the interval between the balls 61 from being too large, so that the ram 4 easily generates friction with the inner wall of the transition piece 6.
The operation method of the pull head structure for the pipe cleaner provided by the embodiment of the invention comprises the following steps:
firstly, outside the conveying pipeline, the whole puller structure is installed, the connector 1 of the puller structure is connected with the push rod 5 or the piston rod through the first pin hole 11 and the pin 12, and simultaneously, the top cover 37 is rotated, so that the inclined surface of the ejector rod 35 faces the opening of the cylinder body 2.
The whole puller structure extends into the conveying pipeline and slowly moves towards the pipe cleaner until the front end of the collision head 4 of the pipe cleaner is contacted with one closed end in the inner cavity of the cylinder 2. Then slowly pull this pull head structure to the direction of keeping away from the dredging pipe ware, ensure this pull head structure and the head of colliding 4 joint of dredging pipe ware.
Then the movement of the hydraulic cylinder drives the pull head structure to move towards the outside of the conveying pipeline, so as to drive the pipe cleaner to move towards the outside of the pipeline.
After pulling the pipe cleaner out of the pipeline, the top cover 37 is rotated, so that the inclined plane of the ejector rod 35 faces away from the opening of the barrel 2, the pull head structure is continuously pulled, the pull head structure and the pipe cleaner generate relative displacement, the collision head 4 of the pipe cleaner pushes the inclined plane of the ejector rod 35, the spring 34 contracts, and the collision head 4 of the pipe cleaner is separated from the inner cavity of the barrel 2.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A pull head structure for a pipe cleaner is characterized by comprising a connector (1), a barrel (2), an elastic clamping mechanism (3) and a transition piece (6), wherein,
the first end of the cylinder body (2) is closed, the second end opposite to the first end is opened, and the elastic clamping mechanism (3) is arranged on the outer wall of the cylinder body (2) close to the second end;
the connector (1) is arranged at the first end of the barrel (2);
elasticity latch mechanism (3) include sleeve (31), spring (34), ejector pin (35) and top cap (37), the inner chamber of sleeve (31) with the inner chamber intercommunication of barrel (2), spring (34) with ejector pin (35) are located the inner chamber of sleeve (31), spring (34) suit is in on ejector pin (35), top cap (37) set up keeping away from of sleeve (31 the port of the one end of barrel (2), being close to of spring (34) the one end of barrel (2) with ejector pin (35) are connected, keeping away from of spring (34) the one end of barrel (2) with top cap (37) support and lean on, ejector pin (35) stretch into the inner chamber of barrel (2), the front end that stretches into of ejector pin (35) the barrel (2) inner chamber is provided with the inclined plane, when the inclined surface is pressed, the front end of the ejector rod (35) retracts into the sleeve (31);
the elastic clamping mechanism (3) further comprises a baffle (36), the diameter of the baffle (36) is larger than that of the ejector rod (35), the baffle (36) is fixed on the ejector rod (35), one end, close to the barrel body (2), of the spring (34) is abutted to the baffle (36), and the baffle (36) is suitable for limiting the spring (34) at one end, far away from the barrel body (2), in the inner cavity of the sleeve (31);
the inner cavity of the sleeve (31) comprises a first cavity (32) and a second cavity (33), the first cavity (32) is positioned at one end, far away from the cylinder (2), in the sleeve (31), the second cavity (33) is positioned at one end, close to the cylinder (2), in the sleeve (31), the baffle (36) is positioned in the first cavity (32), the diameter of the first cavity (32) is equal to that of the baffle (36), the diameter of the second cavity (33) is equal to that of the ejector rod (35), and the second cavity (33) is suitable for preventing the baffle (36) from entering the second cavity (33);
the two ends of the transition piece (6) are opened, the inner diameter of the first end is smaller than that of the opposite second end, and the first end of the transition piece (6) is connected with the second end of the barrel (2).
2. The pull head structure for the pipe pig according to claim 1, characterized in that the front end of the connection head (1) comprises a cylindrical body, on which a first pin hole (11) is provided, and the axis of the first pin hole (11) is perpendicular to the axis of the cylindrical body, the cylindrical body being adapted to be connected with a push rod (5) through the first pin hole (11).
3. The pull head structure for the pig according to claim 1, characterized in that the top cap (37) is of one-piece construction with the sleeve (31).
4. The pull head structure for the pig according to claim 1, characterized in that the top cap (37) comprises a second pin hole (371), the second pin hole (371) having a diameter larger than the diameter of the ejector pin (35) and being adapted for the ejector pin (35) to pass through.
5. The pull head structure for the pig according to claim 4, characterized in that the top cover (37) further comprises a pin (372), the pin (372) passing through the second pin hole (371) to be connected with one end of the ejector pin (35) far away from the cylinder (2) and adapted to bring the ejector pin (35) to rotate and move up and down.
6. The pull head structure for the pipe pig according to claim 1, characterized in that the connector (1), the barrel (2) and the elastic clamping mechanism (3) are integrated.
7. The pull head structure for the pipe pig according to claim 1, characterized in that the resilient snap-in means (3) are at least three and are arranged circumferentially at regular intervals on the outer wall of the barrel (2).
8. The pull head structure for a pig according to claim 1, characterized in that the transition piece (6) is trumpet-shaped and that a plurality of balls (61) are evenly spaced in circumferential direction on the inner wall of the transition piece (6), said balls (61) being adapted to roll to slow down the friction between the pig's ram (4) and the inner wall of the transition piece (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628256.1A CN111375606B (en) | 2018-12-28 | 2018-12-28 | Puller structure for pigs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628256.1A CN111375606B (en) | 2018-12-28 | 2018-12-28 | Puller structure for pigs |
Publications (2)
| Publication Number | Publication Date |
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| CN111375606A CN111375606A (en) | 2020-07-07 |
| CN111375606B true CN111375606B (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811628256.1A Active CN111375606B (en) | 2018-12-28 | 2018-12-28 | Puller structure for pigs |
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| KR20150067617A (en) * | 2013-12-10 | 2015-06-18 | 한국가스공사 | Apparatus for pipe cleaning |
| CN205291090U (en) * | 2015-11-20 | 2016-06-08 | 宁波市北仑格雷塑料制品有限公司 | Cuff cutter thimble mechanism |
| CN206299263U (en) * | 2016-12-14 | 2017-07-04 | 四川筑红运林业科技有限责任公司 | A kind of portable push-pull configuration with chute |
| CN207456545U (en) * | 2017-12-07 | 2018-06-05 | 重庆众誉材工科技有限公司 | Character wheel box construction in liquid-sealing water meter |
| CN207642346U (en) * | 2017-12-12 | 2018-07-24 | 青岛益昕汽车模具有限公司 | A fixing mechanism for a lathe drill bit |
| CN208046118U (en) * | 2018-04-24 | 2018-11-02 | 安徽亢信电子科技有限公司 | A kind of special connector of taking the lead of cable |
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2018
- 2018-12-28 CN CN201811628256.1A patent/CN111375606B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150067617A (en) * | 2013-12-10 | 2015-06-18 | 한국가스공사 | Apparatus for pipe cleaning |
| CN205291090U (en) * | 2015-11-20 | 2016-06-08 | 宁波市北仑格雷塑料制品有限公司 | Cuff cutter thimble mechanism |
| CN206299263U (en) * | 2016-12-14 | 2017-07-04 | 四川筑红运林业科技有限责任公司 | A kind of portable push-pull configuration with chute |
| CN207456545U (en) * | 2017-12-07 | 2018-06-05 | 重庆众誉材工科技有限公司 | Character wheel box construction in liquid-sealing water meter |
| CN207642346U (en) * | 2017-12-12 | 2018-07-24 | 青岛益昕汽车模具有限公司 | A fixing mechanism for a lathe drill bit |
| CN208046118U (en) * | 2018-04-24 | 2018-11-02 | 安徽亢信电子科技有限公司 | A kind of special connector of taking the lead of cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111375606A (en) | 2020-07-07 |
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