Quick-opening blind plate anti-collision device and quick-opening blind plate

Abstract

The utility model relates to a quick-opening blind plate anti-collision device and a quick-opening blind plate, the quick-opening blind plate anti-collision device comprises a blind plate cover, a pressing plate fixedly arranged on the inner side of the blind plate cover, and an anti-collision buffering cushion fastened on the inner side of the blind plate cover through the pressing plate, the anti-collision buffering cushion protrudes out of the pressing plate, and the pressing plate is fixed on the anti-collision buffering cushion. The side, close to the blind plate cover, of the anti-collision buffering cushion is provided with a protruding structure extending in the direction away from the axis of the blind plate cover, and the side, close to the blind plate cover, of the pressing plate is provided with a groove structure matched with the protruding structure to press the anti-collision buffering cushion. By means of the anti-collision buffering cushion, the blind plate can resist damage caused by impact of a pigging device during working, the service life of the blind plate cover is prolonged, the overall safety of the pigging receiving device can be protected, and meanwhile, due to the fact that the anti-collision buffering cushion is generally made of a non-metal material, compared with a spring adopted in the prior art, the anti-collision buffering cushion is not prone to falling off. The corrosion resistance and the stability are also obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a quick-opening blind plate anti-collision device and a quick-opening blind plate. Background Art

[0002] The pig sending and receiving device is used to remove the accumulated water and impurities in the oil and gas pipelines, and is also used for cleaning the pipes before the construction is completed and put into production. It is generally composed of a sending device, a receiving device, a quick-opening blind plate and a valve. The sending and receiving device is used in the cleaning system, and is installed at the beginning and end of the cleaning line respectively to launch and receive the pig. Among them, the quick-opening blind plate is mainly used at both ends of the sending and receiving device as the sending and receiving ports of the pig. When the pig is cleaning the pipeline, the thrust of the medium behind it forms a closed piston, which can run along the pipe wall under the pressure difference between the front and the back to remove and push the dirt in the pipe. When the pig finishes cleaning and enters the ball receiving device, sometimes the thrust of the medium behind is too large, causing it to hit the blind plate cover of the quick-opening blind plate in front too fast, causing the pig and the blind plate cover to be damaged. If the pressure gauge and the through indicator in front of the receiving tube fail, the operator will misjudge and open the valve, which will have more serious consequences. The pig will hit the blind plate at high speed, causing the blind plate cover to fly out of the ball receiving device and cause casualties. At present, most blind plates are equipped with spring-structured anti-collision devices, which will produce a large rebound impact when a collision occurs, affecting the structural stability of the blind plate and the pipe cleaner. At the same time, after long-term use, the corrosion resistance and structural stability of the spring-structured anti-collision device will decrease.

[0003] Therefore, it is a technical problem that technical personnel in this field urgently need to solve to design the anti-collision device on the quick-opening blind plate, improve the service life of the blind plate cover and the anti-collision device, and improve the buffering effect and impact resistance. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a quick-opening blind plate anti-collision device, which increases the service life of the blind plate cover and the anti-collision device, and improves the buffering effect and impact resistance.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A quick-opening blind plate anti-collision device comprises: a blind plate cover, a pressure plate fixedly arranged on the inner side of the blind plate cover, and an anti-collision buffer pad fastened to the inner side of the blind plate cover through the pressure plate, the anti-collision buffer pad protrudes from the pressure plate, a side of the anti-collision buffer pad close to the blind plate cover is provided with a protrusion structure extending in a direction away from the axis of the blind plate cover, and a side of the pressure plate close to the blind plate cover is provided with a groove structure cooperating with the protrusion structure to press the anti-collision buffer pad.

[0007] Preferably, the anti-collision buffer pad is a polyurethane pad.

[0008] Preferably, the pressure plate is provided with more than two limiting holes at circumferential intervals, the blind plate cover is provided with threaded holes corresponding one to one to the limiting holes in the circumferential direction, and fasteners threadedly connected to the threaded holes are provided through the limiting holes to fasten the anti-collision buffer pad to the blind plate cover.

[0009] Preferably, the limiting holes are circular holes arranged at equal intervals in the circumferential direction of the pressure plate.

[0010] Preferably, the pressure plate is a circular ring structure, and the anti-collision buffer pad is a cylindrical structure that matches the middle area of ​​the ring structure.

[0011] Preferably, the number of the pressure plates is at least two, and the pressure plates are arranged at intervals in the circumferential direction of the anti-collision buffer.

[0012] The utility model also discloses a quick-opening blind plate, comprising the quick-opening blind plate anti-collision device described above, and further comprising:

[0013] A blind plate seat matched with the blind plate cover;

[0014] A locking mechanism is provided on the blind plate cover and the blind plate seat, and the locking mechanism is used to realize the clamping of the blind plate cover and the blind plate seat;

[0015] A switch mechanism with one end arranged on the blind plate cover and the other end arranged on the blind plate seat, wherein the switch mechanism is used to realize the movable connection between the blind plate cover and the blind plate seat.

[0016] Preferably, the locking mechanism comprises:

[0017] A locking ring having a notch is provided;

[0018] A locking ring groove for accommodating the locking ring and arranged on the circumferential direction of the outer wall of the blind plate cover;

[0019] An annular groove for realizing the locking of the locking ring is arranged corresponding to the locking ring groove, and the annular groove is arranged on the circumference of the inner wall of the blind plate seat;

[0020] A connecting piece with one end hinged to the first end of the locking ring, and a horseshoe component with one end hinged to the second end of the locking ring, the other end of the connecting piece is hinged to the other end of the horseshoe component, and the connecting piece is provided with a wrench socket for inserting an operating wrench;

[0021] A limiting plate is arranged between the notches and one end of which is inserted into the annular groove. The other end of the limiting plate extends to the outside of the blind plate cover and is fixed to the blind plate cover through a pressure relief screw threadedly connected to the blind plate cover.

[0022] Preferably, the blind plate cover is circumferentially provided with a buckle for axially limiting the locking ring.

[0023] Preferably, the switch mechanism includes a base arranged on the blind plate cover, a rotating shaft seat arranged on the blind plate seat, and a rotating arm plate having one end fixedly connected to the base and the other end rotatably connected to the rotating shaft base, and a handle is arranged on the rotating arm plate near the base.

[0024] The circumference of the blind plate seat in the quick-opening blind plate of the utility model is welded to the circumference of the pipe to be cleaned. When the quick-opening blind plate is closed by the switch mechanism, the quick-opening blind plate anti-collision device is arranged inside the pipe to be cleaned. In the utility model, when the quick-opening blind plate is closed, the side of the blind plate cover facing the inside of the pipe to be cleaned is the inner side of the blind plate cover, and the side of the blind plate cover facing the outside of the pipe to be cleaned is the outer side of the blind plate cover.

[0025] Compared with the prior art, the utility model has achieved the following technical effects:

[0026] A pressure plate is used to press the anti-collision buffer pad on the inner side of the blind plate cover, the anti-collision buffer pad protrudes from the pressure plate, and the anti-collision buffer pad is provided with a protrusion structure extending away from the axis of the blind plate cover near the inner side of the blind plate cover, and a groove structure for pressing the anti-collision buffer pad cooperating with the protrusion mechanism is provided on the pressure plate near the inner side of the blind plate cover. The cooperation between the protrusion structure and the groove structure can ensure that the anti-collision buffer pad is firmly installed on the inner side of the blind plate cover. When the pipe cleaner collides with the blind plate cover, the anti-collision buffer pad can effectively absorb the kinetic energy of the pipe cleaner, thereby resisting the damage to the blind plate cover caused by the pipe cleaner. In addition, compared with the current method of using springs as buffer components, the anti-collision buffer pad also has the advantages of corrosion resistance and structural stability, which can effectively extend the service life of the blind plate cover and protect the overall safety of the pipe cleaning receiving device.

[0027] Since the quick-opening blind plate disclosed in the utility model adopts the quick-opening blind plate anti-collision device mentioned above, the quick-opening blind plate has the corresponding technical advantages of the quick-opening blind plate anti-collision device mentioned above, and this application document will not elaborate on this. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Attached Figure 1 It is a partial cross-sectional schematic diagram of the quick-opening blind plate disclosed in the utility model;

[0030] Attached Figure 2 for Figure 1 A schematic cross-sectional view of a quick-opening blind plate anti-collision device;

[0031] Attached Figure 3 It is a top view schematic diagram of the quick-opening blind plate anti-collision device disclosed in the utility model;

[0032] Attached Figure 4 This is an axonometric diagram of the quick-opening blind plate disclosed in the utility model;

[0033] Attached Figure 5 It is a schematic diagram of the rotating shaft seat plate of the quick-opening blind plate disclosed in the utility model;

[0034] Attached Figure 6 It is a schematic diagram of the rotating arm plate of the quick-opening blind plate disclosed in the utility model;

[0035] Among them, 1. Anti-collision buffer pad; 2. Fastener; 3. Pressure plate; 4. Blind plate cover; 5. Blind plate seat; 6. Locking ring; 7. Rotating shaft seat plate; 8. Locking ring groove; 9. Annular groove; 10. Rotating arm plate; 11. Base; 12. Handle; 13. Pressure relief screw; 14. Operating wrench; 15. Connector; 16. Horseshoe component; 17. Limiting plate; 18. Buckle. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The utility model aims to provide a quick-open blind plate anti-collision device, which can prolong the service life of the blind plate cover and the anti-collision device, and improve the buffering effect and impact resistance.

[0038] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] refer to Figure 1 and Figure 2The quick-opening blind plate anti-collision device disclosed in the embodiment of the utility model at least comprises a blind plate cover 4, an anti-collision buffer pad 1 and a pressing device for pressing the anti-collision buffer pad 1 on the inner side of the blind plate cover 4. The pressing device can be any device for pressing or fixing the anti-collision buffer pad 1 and the inner side of the blind plate cover 4, such as using an elastic member to press the anti-collision buffer pad 1 on the inner side of the blind plate cover 4 or using a fixing member to fix the blind plate cover 4 and the anti-collision buffer pad 1, as long as the anti-collision buffer pad 1 can protrude from the inner side of the blind plate cover 4. The inner side of the blind plate cover 4 mentioned here refers to the side located inside the pipeline to be cleaned when the blind plate cover 4 is closed;

[0040] In this embodiment, a pressure plate 3 is preferably used to press the anti-collision buffer pad 1 on the inner side of the blind plate cover 4, the anti-collision buffer pad 1 protrudes (i.e., is higher than) the pressure plate 3, and the anti-collision buffer pad 1 is provided with a protrusion structure extending away from the axis of the blind plate cover 4 near the inner side of the blind plate cover 4, and the pressure plate 3 is provided with a groove structure for pressing the anti-collision buffer pad 1 which cooperates with the protrusion structure near the inner side of the blind plate cover 4. When the pipe cleaner collides with the blind plate cover 4, the above-mentioned anti-collision buffer pad can make the blind plate resist the damage caused by the impact of the pipe cleaner during operation, thereby extending the service life of the blind plate cover 4 and protecting the overall safety of the pipe cleaning receiving device; at the same time, since the anti-collision buffer pad is generally made of non-metallic material, its corrosion resistance and stability are also significantly improved compared with the spring used in the prior art.

[0041] refer to Figure 1 and Figure 2 In one embodiment, the anti-collision cushion 1 is a polyurethane cushion, which has excellent corrosion resistance, and the material is a typical nonlinear material, and its stress deformation has hysteresis. There are many tiny "pores" in the polyurethane material, which are equivalent to a spring with multiple airbag damping during the impact process. This special structure enables it to absorb external impact and vibration forces, and convert the energy into its own internal elastic deformation for consumption, protecting the blind plate cover from the impact of the pipe cleaner, and can effectively avoid the problem of reduced corrosion resistance after long-term use of springs for buffering;

[0042] refer to Figure 1 and Figure 2As a preferred manner, the pressure plate 3 is provided with more than two limiting holes at circumferential intervals, the blind plate cover 4 is provided with threaded holes corresponding to the limiting holes in the circumferential direction, and fasteners 2 threadedly connected with the threaded holes are provided through the limiting holes to achieve the fastening of the anti-collision buffer pad 1. The fasteners 2 can be one of a variety of fixing parts such as bolts or screws, as long as the pressure plate 3 can be pressed against the inner side of the blind plate cover 4, the pressure plate 3 can be pressed by the fasteners 2, and then the groove structure of the pressure plate 3 is pressed against the convex structure of the anti-collision buffer pad 1, so as to achieve the compression of the anti-collision buffer pad 1, avoid the problem of displacement of the anti-collision buffer pad 1 when hit by the pipe cleaner, not only can the anti-collision effect be improved, but also the replacement of the anti-collision buffer pad 1 can be facilitated.

[0043] refer to Figure 1 and 2 As a preferred method, the limiting holes are circular holes arranged at equal intervals in the circumferential direction of the pressure plate 3. The limiting holes are arranged at equal intervals, so that the pressure plate 3 is subjected to uniform force in the circumferential direction, and the clamping effect of the anti-collision buffer pad 1 and the pressure plate 3 is further improved.

[0044] refer to Figure 2 and Figure 3 The pressure plate 3 is a circular ring structure, and the anti-collision buffer pad 1 is a cylindrical structure that cooperates with the middle area of ​​the circular ring structure. Setting the pressure plate 3 as a circular ring structure can achieve compression of the entire circumference of the anti-collision buffer pad 1, thereby improving the compression effect of the anti-collision buffer pad 1.

[0045] Of course, the pressure plate 3 may not be an integral annular component, but may be a plurality of plates distributed around the anti-collision buffer pad 1. For example, in the present embodiment, there are more than two pressure plates 3, which are spaced apart around the anti-collision buffer pad 1. The pressure plates 3 may also be equally spaced apart around the anti-collision buffer pad 1.

[0046] refer to Figure 1-6 The utility model also discloses a quick-open blind plate, which includes the quick-open blind plate anti-collision device in any of the above embodiments, and also includes a blind plate seat 5 matched with the blind plate cover 4, a locking mechanism arranged on the blind plate cover 4 and the blind plate seat 5, the locking mechanism is used to realize the clamping of the blind plate cover 4 and the blind plate seat 5, and a switch mechanism is arranged between the blind plate seat 5 and the blind plate cover 4, such as Figure 4 As shown in the figure, one end of the switch mechanism is arranged on the blind plate cover 4 and the other end is arranged on the blind plate seat 5. Through the switch mechanism, the blind plate cover 4 can be rotatably connected with the blind plate seat 5 to realize the opening and closing of the blind plate cover 4. When the blind plate cover 4 is closed, the blind plate cover 4 and the blind plate seat 5 are clamped together through the locking mechanism.

[0047] Reference Figure 4The locking mechanism includes a locking ring 6 with a notch, a first end of the locking ring 6 is hinged to one end of a connecting piece 15, a second end of the locking ring 6 is hinged to one end of a horseshoe component 16, and the other end of the connecting piece 15 is hinged to the other end of the horseshoe component 16. The connecting piece 15 is provided with a wrench socket for inserting an operating wrench 14. A locking ring groove 8 for accommodating the locking ring 6 is circumferentially provided on the outer wall of the blind plate cover 4, and an annular groove 9 corresponding to the locking ring groove 8 and used to realize the clamping of the locking ring 6 is circumferentially provided on the inner wall of the blind plate seat 5. When the operating wrench 14 drives the connecting piece 15 to rotate, the horseshoe component 1 6, thereby driving the lock ring 6 to shrink or expand. When the blind plate cover 4 is closed, the operating wrench 14 is rotated, the lock ring 6 expands, and the lock ring 6 swells in the circumferential direction. In the circumferential direction of the lock ring 6, one end is clamped in the annular groove 9, and the other end is clamped in the lock ring groove 8, so that the blind plate cover 4 and the blind plate seat 5 are clamped. When the blind plate cover 4 is opened, the operating wrench 14 is rotated, the lock ring 6 shrinks, and in this case, the lock ring 6 shrinks in the circumferential direction. In the circumferential direction of the lock ring 6, one end is still clamped in the lock ring groove 8, and the other end is out of the annular groove 9, so that the blind plate cover 4 and the blind plate seat 5 are no longer clamped, so that the blind plate cover 4 can be opened;

[0048] The locking mechanism also includes a limiting plate 17 arranged between the notches of the locking ring groove 8, one end of which is inserted into the annular groove 9, and the other end of which extends to the outside of the blind plate cover 4 and is fixedly connected to the outside of the blind plate cover 4. The outside of the blind plate cover 4 mentioned here refers to the position of the blind plate cover 4 when the blind plate cover 4 is closed, which is located on the outside of the pipeline to be cleaned. A through hole is provided at the position where the limiting plate 17 is fixed to the outside of the blind plate cover 4, and the pressure relief screw 13 passes through the through hole to realize the threaded connection between the pressure relief screw 13 and the blind plate cover 4. The limiting plate 17 is pressed by the pressure relief screw 13 to fix the limiting plate 17. Through the arrangement of the pressure relief screw 13 and the limiting plate 17, one end of the limiting plate 17 is clamped with the annular groove 9 on the blind plate seat 5, and the other end of the limiting plate 17 is fixedly connected to the blind plate cover 4, which can not only realize the secondary locking of the blind plate cover 4 and the blind plate seat 5, but also realize the pressure relief of the pipeline to be cleaned through the pressure relief screw 13, so as to avoid the problem that the pipe cleaner hits the blind plate cover 4 at high speed due to excessive pressure, causing equipment damage or even casualties.

[0049] Reference Figure 4 The switch mechanism includes a base 11 arranged on the blind plate cover 4, a rotating shaft seat plate 7 arranged on the blind plate seat 5, and a rotating arm plate 10 having one end fixedly connected to the base 11 and the other end rotatably connected to the rotating shaft seat plate 7. A handle 12 is arranged near the base 11 of the rotating arm plate 10. The rotating arm plate 10 is rotated around the connecting axis between the rotating arm plate 10 and the rotating shaft base 11 by pushing and pulling the handle 12 to realize the opening and closing of the blind plate cover 4.

[0050] Reference Figure 4The blind plate cover 4 is circumferentially provided with a buckle 18 for axially limiting the locking ring 6. The buckle 18 can be provided in plurality to achieve axial limiting of the locking ring 6 and avoid the problem of the locking ring 6 falling out of the locking ring groove 8 when expanding.

[0051] The use process of the utility model is as follows: when cleaning the pipeline to be cleaned, the pipe cleaner hits the anti-collision buffer pad 1. Through the buffering effect of the anti-collision buffer pad 1, it can achieve noiseless and sparkless, with reliable explosion-proof performance, avoid damage to the blind plate cover 4 and the pipe cleaner, and improve the service life of the blind plate cover and the pipe cleaner. When the pipeline is cleaned, open the blind plate cover 4, first unscrew the pressure relief screw 13 from the outside of the blind plate cover 4 to achieve pressure relief in the pipeline, and remove the limit plate 17 from the annular groove 9. At this time, rotate the operating wrench 14 to make the connecting piece 15 and the horseshoe component 16 realize linkage, thereby shrinking the locking ring 6 and escaping from the annular groove 9, so that the blind plate cover 4 and the blind plate seat 5 are no longer clamped, and pull the handle 12 to make the swing arm plate 10 rotate around the connecting axis of the swing arm plate 10 and the rotating shaft base 11 to realize the opening of the blind plate cover 4. The closing and opening processes of the blind plate cover 4 are similar, and no further description is given here.

[0052] Adaptive changes made according to actual needs are all within the protection scope of this utility model.

[0053] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A quick-opening blind plate anti-collision device, characterized in that: include: A blind plate cover, a pressure plate fixedly arranged on the inner side of the blind plate cover, and an anti-collision buffer pad fastened to the inner side of the blind plate cover by the pressure plate, the anti-collision buffer pad protrudes from the pressure plate, the anti-collision buffer pad is provided with a protrusion structure extending away from the axis of the blind plate cover on one side close to the blind plate cover, and the pressure plate is provided with a groove structure cooperating with the protrusion structure to press the anti-collision buffer pad on one side close to the blind plate cover.

2. The quick-opening blind plate anti-collision device according to claim 1 is characterized in that: The anti-collision buffer pad is a polyurethane pad.

3. The quick-opening blind plate anti-collision device according to claim 1, characterized in that: The pressure plate is provided with more than two limiting holes at circumferential intervals, the blind plate cover is provided with threaded holes corresponding to the limiting holes in a one-to-one manner, and fasteners threadedly connected to the threaded holes are provided through the limiting holes to fasten the anti-collision buffer pad to the blind plate cover.

4. The quick-opening blind plate anti-collision device according to claim 3 is characterized in that: The limiting holes are circular holes arranged at equal intervals in the circumferential direction of the pressing plate.

5. The quick-opening blind plate anti-collision device according to claim 1, characterized in that: The pressure plate is a circular ring structure, and the anti-collision buffer pad is a cylindrical structure matched with the middle area of ​​the ring structure.

6. The quick-opening blind plate anti-collision device according to claim 1 is characterized in that: The number of the pressure plates is at least two, and the pressure plates are arranged at intervals in the circumferential direction of the anti-collision buffer pad.

7. A quick-opening blind plate, comprising the quick-opening blind plate anti-collision device according to any one of claims 1 to 6, characterized in that: Also includes: A blind plate seat matched with the blind plate cover; A locking mechanism is provided on the blind plate cover and the blind plate seat, and the locking mechanism is used to realize the clamping of the blind plate cover and the blind plate seat; A switch mechanism with one end arranged on the blind plate cover and the other end arranged on the blind plate seat, wherein the switch mechanism is used to realize the movable connection between the blind plate cover and the blind plate seat.

8. The quick-opening blind plate according to claim 7, characterized in that: The locking mechanism comprises: A locking ring having a notch is provided; A locking ring groove for accommodating the locking ring and arranged on the circumferential direction of the outer wall of the blind plate cover; An annular groove for realizing the locking of the locking ring is arranged corresponding to the locking ring groove, and the annular groove is arranged on the circumference of the inner wall of the blind plate seat; A connecting piece with one end hinged to the first end of the locking ring, and a horseshoe component with one end hinged to the second end of the locking ring, the other end of the connecting piece is hinged to the other end of the horseshoe component, and the connecting piece is provided with a wrench socket for inserting an operating wrench; A limiting plate is arranged between the notches and one end of which is inserted into the annular groove. The other end of the limiting plate extends to the outside of the blind plate cover and is fixed to the blind plate cover through a pressure relief screw threadedly connected to the blind plate cover.

9. The quick-opening blind plate according to claim 8, characterized in that: The blind plate cover is circumferentially provided with a buckle for axially limiting the locking ring.

10. The quick-opening blind plate according to claim 7, characterized in that: The switch mechanism includes a base arranged on the blind plate cover, a rotating shaft base arranged on the blind plate seat, and a rotating arm plate with one end fixedly connected to the base and the other end rotatably connected to the rotating shaft base, and a handle is arranged on the rotating arm plate near the base.

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