Blind plate switch auxiliary device

Abstract

The utility model belongs to the technical field of oil and gas pipelines, and discloses a blind plate opening and closing auxiliary device. The blind plate opening and closing auxiliary device is used for assisting opening or closing of a blind plate, the blind plate can open or block a pipeline, the blind plate opening and closing auxiliary device comprises a frame, a first positioning hook, a second positioning hook and an abutting piece, the length of the frame is adjustable, and the first positioning hook and the second positioning hook are arranged at the two ends of the frame respectively. The blind plate opening and closing auxiliary device is configured to be buckled and positioned with the outer edge of the blind plate, the extension direction of the first positioning hook, the extension direction of the second positioning hook and the extension direction of the abutting piece are parallel to each other, and the abutting piece is in threaded connection with the frame, can rotate relative to the frame, can move in the axial direction of the abutting piece and can abut against the blind plate. The blind plate opening and closing operation efficiency is improved, the blind plate is prevented from being bounced off quickly, airflow impact is reduced, and the operation safety is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil and gas pipeline technical field especially, and relates to blind plate switch auxiliary device. BACKGROUND

[0002] The quick open blind plate device is a kind of quick opening and closing sealing device for pipeline or container, and the quick open blind plate device includes blind plate, flange and sealing structure, one end of the flange is fixedly connected with the pipeline or container, the other end is provided with mounting interface, the blind plate is arranged at the mounting interface and can seal the pipeline or container opening, and the blind plate and the flange are provided with the sealing structure, so that the blind plate is sealingly connected with the pipeline.

[0003] At present, since the maintenance cycle interval of blind plate is long, the sealing surface of blind plate is easy to contact with dirt impurities, and then rust or adhesion occurs at the contact position of blind plate and pipeline, causing difficulty in opening and closing;Because the sealing structure of blind plate has special shape and elastic characteristics, it is difficult to close in place only by relying on manpower;At the same time, due to the fewer auxiliary stress points of blind plate, it is difficult to find the force point of operation tool in operation, resulting in low efficiency of blind plate opening and closing operation;And when the blind plate is opened, the airflow impact in the pipeline is too large, and the blind plate is easy to pop open, which can cause personal injury.

[0004] Therefore, blind plate opening and closing auxiliary device is needed to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing blind plate opening and closing auxiliary device, which can assist force, make up for insufficient manpower, improve the operation efficiency of blind plate opening and closing, avoid the rapid opening of blind plate, reduce airflow impact and significantly improve operation safety.

[0006] To achieve this purpose, the utility model adopts the following technical scheme:

[0007] The blind plate opening and closing auxiliary device is used for assisting the opening or closing of blind plate, the blind plate can open or seal the pipeline, and the blind plate opening and closing auxiliary device comprises:

[0008] Frame, the length of the frame is adjustable;

[0009] First positioning hook and second positioning hook, the first positioning hook and the second positioning hook are respectively arranged at both ends of the frame, and are configured to be buckled and positioned with the outer edge of the blind plate;

[0010] Abutting member, the extension direction of the first positioning hook, the extension direction of the second positioning hook and the extension direction of the abutting member are parallel to each other, the abutting member is threadedly connected with the frame, can rotate relative to the frame and move along the axial direction of the abutting member, and can abut against the blind plate.

[0011] As an optional scheme of the blind plate switch auxiliary device, the frame comprises a first telescopic assembly and a second telescopic assembly, the first telescopic assembly and the second telescopic assembly are arranged in a spaced manner, the two sides of the first positioning hook are connected with the first end of the first telescopic assembly and the first end of the second telescopic assembly respectively, the two sides of the second positioning hook are connected with the second end of the first telescopic assembly and the second end of the second telescopic assembly respectively, and the first telescopic assembly and the second telescopic assembly can be telescopically moved to adjust the distance between the first positioning hook and the second positioning hook.

[0012] As an optional scheme of the blind plate switch auxiliary device, the first telescopic assembly comprises a first movable piece, a second movable piece and a first fixed piece, the first end of the first movable piece and the first end of the second movable piece are slidably connected with the two ends of the first fixed piece respectively;

[0013] The second telescopic assembly comprises a third movable piece, a fourth movable piece and a second fixed piece, the first end of the third movable piece and the first end of the fourth movable piece are slidably connected with the two ends of the second fixed piece respectively;

[0014] The second end of the first movable piece and the second end of the third movable piece are connected with the two sides of the first positioning hook respectively, and the second end of the second movable piece and the second end of the fourth movable piece are connected with the two sides of the second positioning hook respectively.

[0015] As an optional scheme of the blind plate switch auxiliary device, the frame further comprises a first mounting ring, the first mounting ring is arranged between the first movable piece and the third movable piece, the outer circumferential surface of the first mounting ring is connected with the first movable piece and the third movable piece, the abutting piece is arranged in the first mounting ring and is threadedly connected with the first mounting ring; and / or;

[0016] The frame further comprises a second mounting ring, the second mounting ring is arranged between the second movable piece and the fourth movable piece, the outer circumferential surface of the second mounting ring is connected with the second movable piece and the fourth movable piece, the abutting piece is arranged in the second mounting ring and is threadedly connected with the second mounting ring.

[0017] As an optional scheme of the blind plate switch auxiliary device, the abutting piece comprises a first nut, a second nut and a screw rod, the first nut and the second nut are fixedly arranged at the two ends of the screw rod respectively, the screw rod is arranged in the first mounting ring and is threadedly connected with the first mounting ring, the second nut can be rotated to drive the screw rod to rotate, so as to drive the first nut to move along the axial direction of the screw rod and abut against the blind plate; and / or;

[0018] The screw rod is arranged in the second mounting ring and is threadedly connected with the second mounting ring, the second nut can be rotated to drive the screw rod to rotate, so as to drive the first nut to move along the axial direction of the screw rod and abut against the blind plate.

[0019] As an optional scheme of the blind plate switch auxiliary device, the frame further comprises a third mounting ring, which is arranged between the first fixing member and the second fixing member, and the outer circumferential surface of the third mounting ring is connected with the first fixing member and the second fixing member;

[0020] The blind plate switch auxiliary device further comprises a connecting member, which can pass through the two third mounting rings of the two frames and can be fastened with the two third mounting rings.

[0021] As an optional scheme of the blind plate switch auxiliary device, the side of the abutting member abutting against the blind plate is provided with a first elastic member.

[0022] As an optional scheme of the blind plate switch auxiliary device, the first elastic member is a multilayer combined gasket.

[0023] As an optional scheme of the blind plate switch auxiliary device, the side of the first positioning hook and the second positioning hook buckling with the outer edge of the blind plate is provided with a second elastic member.

[0024] As an optional scheme of the blind plate switch auxiliary device, the second elastic member is a flexible gasket.

[0025] Beneficial effects:

[0026] The utility model provides a kind of blind plate switch auxiliary device, when using, first according to blind plate size adjustment frame length, the first positioning hook and second positioning hook are buckled in blind plate outer edge, realize the fixation of frame. When closing blind plate, rotating abutting member, make abutting member movement and with blind plate abutting, abutting member movement can promote blind plate movement, and make blind plate and pipeline port closely adhere to each other;When opening blind plate, rotating abutting member makes it and blind plate reserved spacing, operator opens blind plate, and abutting member can receive the impact force of airflow in pipeline, to avoid that blind plate is quickly opened. The blind plate switch auxiliary device can assist force, make up insufficient manpower, improve the operation efficiency of blind plate switch, avoid that blind plate is quickly opened, reduce airflow impact, significantly improve operation safety, and the blind plate switch auxiliary device is simple and light, and it is fixed conveniently, and it is convenient to carry, manufacturing and use cost are lower, it is favorable to popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the first schematic view of blind plate switch auxiliary device provided by the utility model embodiment;

[0028] Figure 2 It is the second schematic view of blind plate switch auxiliary device provided by the utility model embodiment;

[0029] Figure 3 It is the schematic view of frame provided by the utility model embodiment.

[0030] In the drawings:

[0031] 100, blind plate; 200, pipeline; 300, flange;

[0032] 1, frame; 11, first telescopic assembly; 111, first movable piece; 112, second movable piece; 113, first fixed piece; 12, second telescopic assembly; 121, third movable piece; 122, fourth movable piece; 123, second fixed piece; 13, first mounting ring; 14, second mounting ring; 15, third mounting ring;

[0033] 21, first positioning hook; 22, second positioning hook;

[0034] 3, abutting piece; 31, first nut; 32, second nut; 33, screw rod;

[0035] 41, connecting piece; 42, fastening nut; 5, first elastic piece; 6, second elastic piece. DETAILED DESCRIPTION

[0036] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and are not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0037] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] In the description of the present embodiment, the terms "upper", "lower", "right", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0040] As shown in Figure 1 The quick-opening blind plate device is a quick opening and closing sealing device for a pipeline 200 or a container. The quick-opening blind plate device comprises a blind plate 100, a flange 300, and a sealing structure. One end of the flange 300 is fixedly connected to the pipeline 200 or the container, and the other end is provided with a mounting interface. The blind plate 100 is arranged at the mounting interface and can block the opening of the pipeline 200 or the container. The blind plate 100 and the flange 300 are provided with the sealing structure.

[0041] Because the maintenance cycle interval of the blind plate 100 is long, the sealing surface of the blind plate 100 facing the pipeline 200 is easy to contact with the dirt and impurities in the pipeline 200, which causes corrosion or adhesion at the contact position of the blind plate 100 and the pipeline 200, resulting in difficulty in opening and closing. Because the sealing structure of the blind plate 100 has a special shape and elastic characteristics, it cannot be closed in place by relying on manpower alone. At the same time, because the blind plate 100 has fewer auxiliary stress points, it is difficult to find the stress points of the operating tools during operation, which results in low efficiency of the opening and closing operation of the blind plate 100. In addition, when the blind plate 100 is opened, the airflow in the pipeline 200 is too large, and the rapid rebound of the blind plate 100 can easily cause personal injury.

[0042] A blind plate opening and closing auxiliary device is disclosed in the present embodiment, as shown in Figure 1 The blind plate opening and closing auxiliary device is used to assist in opening or closing the blind plate 100, and the blind plate 100 can open or block the pipeline 200. The blind plate opening and closing auxiliary device comprises a frame 1, a first positioning hook 21, a second positioning hook 22, and an abutting piece 3. The length of the frame 1 is adjustable. The first positioning hook 21 and the second positioning hook 22 are respectively arranged at both ends of the frame 1 and are used to be buckled and positioned with the outer edge of the blind plate 100. The extension direction of the first positioning hook 21, the extension direction of the second positioning hook 22, and the extension direction of the abutting piece 3 are parallel to each other. The abutting piece 3 is threadedly connected with the frame 1, can rotate relative to the frame 1 and move along the axial direction of the abutting piece 3, and can abut against the blind plate 100.

[0043] The blind plate switch auxiliary device provided by the embodiment can assist in applying force, make up for insufficient manpower, improve the operation efficiency of the blind plate 100 switch, avoid the blind plate 100 from being quickly opened, reduce airflow impact, significantly improve operation safety, and the blind plate switch auxiliary device is simple and light, convenient to fix, portable, low in manufacturing and using cost, and beneficial to popularization and use.

[0044] As shown in Figure 1 In the embodiment, the outer edge of the blind plate 100 buckled by the first positioning hook 21 and the second positioning hook 22 is defined as the edge of the flange 300 or the overall outer edge structure of the blind plate 100 after being connected with the pipeline 200.

[0045] As shown in Figure 1 The frame 1 includes the first telescopic assembly 11 and the second telescopic assembly 12, the first telescopic assembly 11 and the second telescopic assembly 12 are arranged at intervals, the two sides of the first positioning hook 21 are connected with the first end of the first telescopic assembly 11 and the first end of the second telescopic assembly 12 respectively, the two sides of the second positioning hook 22 are connected with the second end of the first telescopic assembly 11 and the second end of the second telescopic assembly 12 respectively, and the first telescopic assembly 11 and the second telescopic assembly 12 can telescopically move to adjust the distance between the first positioning hook 21 and the second positioning hook 22. On the one hand, the frame 1 can flexibly adjust the distance between the first positioning hook 21 and the second positioning hook 22 through the telescopic movement of the first telescopic assembly 11 and the second telescopic assembly 12, can be adapted to the outer edge of the blind plate 100 of different sizes, and improves the adaptability and flexibility of the blind plate switch auxiliary device. On the other hand, the first telescopic assembly 11 and the second telescopic assembly 12 arranged at intervals form a stable support structure, can keep the overall force of the frame 1 uniform when adjusting the distance between the first positioning hook 21 and the second positioning hook 22, avoid the device from being skewed or unstable due to one-side telescopic movement, improve the operation stability, and improve the reliability of the blind plate switch auxiliary device.

[0046] As shown in Figure 2As shown, the first telescopic assembly 11 includes a first movable piece 111, a second movable piece 112 and a first fixed piece 113, and the first end of the first movable piece 111 and the first end of the second movable piece 112 are respectively in sliding connection with the two ends of the first fixed piece 113. The second telescopic assembly 12 includes a third movable piece 121, a fourth movable piece 122 and a second fixed piece 123, and the first end of the third movable piece 121 and the first end of the fourth movable piece 122 are respectively in sliding connection with the two ends of the second fixed piece 123. The second end of the first movable piece 111 and the second end of the third movable piece 121 are respectively connected to the two sides of the first positioning hook 21, and the second end of the second movable piece 112 and the second end of the fourth movable piece 122 are respectively connected to the two sides of the second positioning hook 22. The first telescopic assembly 11 and the second telescopic assembly 12 form a bidirectional symmetrical telescopic adjusting structure, which makes the spacing adjustment of the first positioning hook 21 and the second positioning hook 22 more accurate and stable, and can be flexibly expanded or contracted, effectively adapting to the auxiliary operation requirements of blind plate 100 switches of different specifications.

[0047] In this embodiment, the second end of the first movable piece 111 and the second end of the third movable piece 121 are respectively connected to the two sides of the first positioning hook 21 through fasteners, and the second end of the second movable piece 112 and the second end of the fourth movable piece 122 are respectively connected to the two sides of the second positioning hook 22 through fasteners.

[0048] In this embodiment, after the first telescopic assembly 11 is adjusted in place, the first movable piece 111, the second movable piece 112 and the first fixed piece 113 can be locked by fasteners, so that the first telescopic assembly 11 no longer telescopes; after the second telescopic assembly 12 is adjusted in place, the third movable piece 121, the fourth movable piece 122 and the second fixed piece 123 are fastened, so that the second telescopic assembly 12 no longer telescopes, forming a rigid fixed structure, the spacing of the first positioning hook 21 and the second positioning hook 22 remains stable, avoiding the situation of loosening and falling off, which not only guarantees the flexibility of the adjustment process, but also improves the structural reliability during operation through fastening and locking, further enhancing the adaptability and operation safety of the blind plate switch auxiliary device to blind plates 100 switches of different sizes.

[0049] As shown in FIG. 6, the first telescopic assembly 11 and the second telescopic assembly 12 are respectively connected to the two sides of the first positioning hook 21 and the second positioning hook 22 through fasteners, and the first telescopic assembly 11 and the second telescopic assembly 12 are respectively connected to the two sides of the first positioning hook 21 and the second positioning hook 22 through fasteners. Figure 3As shown, in the embodiment, the frame 1 further comprises a first mounting ring 13, which is arranged between the first movable part 111 and the third movable part 121, and the outer circumferential surface of the first mounting ring 13 is connected with the first movable part 111 and the third movable part 121, and the abutting part 3 is arranged in the first mounting ring 13 and is threadedly connected with the first mounting ring 13. First, the first movable part 111 and the third movable part 121 are both connected with the outer circumferential surface of the first mounting ring 13 to form a rigid support structure, which significantly enhances the overall stability of the frame 1 during telescopic adjustment. Second, the position of the first mounting ring 13 can limit the maximum telescopic stroke of the first movable part 111 and the third movable part 121, achieving precise control of the telescopic amount of the first telescopic assembly 11 and avoiding excessive telescoping. Third, the abutting part 3 is threadedly connected with the first mounting ring 13, and the distance of the axial movement of the abutting part 3 can be adjusted by rotation, achieving progressive abutting or loosening of the blind plate 100, and the self-locking characteristic of the thread ensures the stability of the position of the abutting part 3 during operation, enhancing the reliability and controllability of the operation of the blind plate opening and closing auxiliary device.

[0050] As shown in the drawings, Figure 3 As shown, in the embodiment, the frame 1 further comprises a second mounting ring 14, which is arranged between the second movable part 112 and the fourth movable part 122, and the outer circumferential surface of the second mounting ring 14 is connected with the second movable part 112 and the fourth movable part 122, and the abutting part 3 is arranged in the second mounting ring 14 and is threadedly connected with the second mounting ring 14. First, the second movable part 112 and the fourth movable part 122 are both connected with the outer circumferential surface of the second mounting ring 14 to form a rigid support structure, which significantly enhances the overall stability of the frame 1 during telescopic adjustment. Second, the position of the second mounting ring 14 can limit the maximum telescopic stroke of the second movable part 112 and the fourth movable part 122, achieving precise control of the telescopic amount of the second telescopic assembly 12 and avoiding excessive telescoping. Third, the abutting part 3 is threadedly connected with the second mounting ring 14, and the distance of the axial movement of the abutting part 3 can be adjusted by rotation, achieving progressive abutting or loosening of the blind plate 100, and the self-locking characteristic of the thread ensures the stability of the position of the abutting part 3 during operation, enhancing the reliability and controllability of the operation of the blind plate opening and closing auxiliary device.

[0051] It is worth noting that the first mounting ring 13 and the second mounting ring 14 are arranged simultaneously, and the first mounting ring 13 and the second mounting ring 14 are respectively connected with the movable parts on both sides to form a symmetrical support structure, which significantly enhances the overall stability of the frame 1 during telescopic adjustment; the abutting parts 3 arranged on both sides of the first mounting ring 13 and the second mounting ring 14 can be adjusted separately, further improving the operational flexibility of the blind plate opening and closing auxiliary device.

[0052] As shown in the drawings, Figure 3As shown, the abutting member 3 comprises a first nut 31, a second nut 32 and a screw rod 33, the first nut 31 and the second nut 32 are respectively fixedly arranged at two ends of the screw rod 33, the screw rod 33 is arranged in the first mounting ring 13 and is threadedly connected with the first mounting ring 13, the second nut 32 can rotate and drive the screw rod 33 to rotate, so as to drive the first nut 31 to move along the axial direction of the screw rod 33 and abut against the blind plate 100. The screw rod 33 can also be arranged in the second mounting ring 14 and be threadedly connected with the second mounting ring 14, the second nut 32 can rotate and drive the screw rod 33 to rotate, so as to drive the first nut 31 to move along the axial direction of the screw rod 33 and abut against the blind plate 100. The first nut 31 and the second nut 32 are fixedly arranged at two ends of the screw rod 33, the screw rod 33 is driven by the second nut 32 to realize threaded transmission, so as to realize that the first nut 31 accurately approaches the blind plate 100 along the axial direction of the screw rod 33 and stably abuts against the blind plate 100, and the abutting force is stable, and the operation is flexible and convenient.

[0053] In the embodiment, the number of the first mounting ring 13 is one, and the number of the second mounting ring 14 is one, and correspondingly, the number of the abutting member 3 is two. In other embodiments, the number of the first mounting ring 13 can be two, three, four or the like, the number of the second mounting ring 14 can be two, three, four or the like, and correspondingly, the number of the abutting member 3 is adaptively adjusted according to the number of the first mounting ring 13 and the number of the second mounting ring 14, which is not limited here.

[0054] As shown in the figure, Figure 3 The frame 1 further comprises a third mounting ring 15, the third mounting ring 15 is arranged between the first fixing member 113 and the second fixing member 123, and the outer circumferential surface of the third mounting ring 15 is connected with the first fixing member 113 and the second fixing member 123. The blind plate switch auxiliary device further comprises a connecting member 41, the connecting member 41 can pass through the two third mounting rings 15 of the two frames 1 and can be tightly connected with the two third mounting rings 15. First, the first fixing member 113 and the second fixing member 123 are connected with the outer circumferential surface of the third mounting ring 15 to form a rigid support structure, so as to avoid deformation of the fixing member under stress, and significantly enhance the overall stability of the frame 1 during telescopic adjustment. Second, the connecting member 41 passes through the two third mounting rings 15 of the two frames 1 and is tightly connected, so that the two frames 1 form an integral structure, the four positioning hooks can be synchronously buckled with the four points of the outer edge of the blind plate 100, and a balanced restraining force is formed through multi-point symmetrical clamping, so as to effectively prevent displacement or deflection of the blind plate switch auxiliary device during operation, and improve the working reliability of the blind plate switch auxiliary device.

[0055] In this embodiment, the connecting piece 41 penetrates the two third mounting rings 15 of the two frames 1 and fastens and connects the two frames 1 through the two fastening nuts 42, so that the two frames 1 are arranged in a cross shape, the four positioning hooks can be synchronously buckled to the four positions of the outer edge of the blind plate 100, and a symmetrical and balanced clamping force is formed to prevent the frame 1 from being deviated due to unilateral stress.

[0056] In some embodiments, the number of the frames 1 can also be three, the connecting piece 41 penetrates the three third mounting rings 15 of the three frames 1 and fastens and connects the three frames 1 through the fastening nuts 42, and the six positioning hooks can be synchronously buckled to the six positions of the outer edge of the blind plate 100, so that a symmetrical and balanced clamping force is formed to prevent the frame 1 from being deviated due to unilateral stress. In other embodiments, the number of the frames 1 can also be four, five, etc., which is not limited here.

[0057] In this embodiment, the frame 1 is made of metal material, the outer circumferential surface of the first mounting ring 13 is welded to the first movable part 111 and the third movable part 121, the outer circumferential surface of the second mounting ring 14 is welded to the second movable part 112 and the fourth movable part 122, and the outer circumferential surface of the third mounting ring 15 is welded to the first fixed part 113 and the second fixed part 123. By using the high strength of the metal material and the reliability of the welding process, the frame 1 has stable supporting performance and load resistance.

[0058] In other embodiments, the frame 1 is integrally formed by 3D printing, which reduces the number of parts and assembly processes, shortens the manufacturing cycle and reduces assembly errors. The integrally formed structure has high surface precision and does not need additional welding treatment, which simplifies the post-processing process and is suitable for precise equipment with high requirements for compactness and reliability, so that the blind plate switch device is simple and light, easy to carry, low in manufacturing and using cost, and conducive to popularization and use.

[0059] As shown in FIG. 1, Figure 2 As shown in FIG. 1, the side of the abutting piece 3 abutting against the blind plate 100 is provided with the first elastic part 5. That is, the first elastic part 5 is arranged on the side of the first nut 31 facing the blind plate 100, and the elastic buffering effect of the first elastic part 5 avoids damaging the surface of the blind plate 100 by the first nut 31. At the same time, the self-adapting deformation capability of the first elastic part 5 can compensate for the uneven part of the surface of the blind plate 100, so as to ensure the close abutment of the abutting piece 3 and the blind plate 100.

[0060] In this embodiment, the first elastic part 5 is a multi-layer combined gasket, and the number of the gaskets is flexibly adjusted according to the actual distance between the abutting piece 3 and the blind plate 100. On the one hand, the adjusting stroke of the abutting piece 3 can be saved, and on the other hand, the rigid contact between the first nut 31 and the surface of the blind plate 100 is reduced, so as to avoid damaging or scratching the surface of the blind plate 100.

[0061] In this embodiment, the gasket is a tetrafluoroethylene gasket, which is corrosion-resistant and has excellent high and low temperature resistance, thereby prolonging the service life of the blind plate switching auxiliary device.

[0062] In some embodiments, the first elastic member 5 is a rubber elastic member, which can effectively buffer the rigid pressure of the abutting member 3 on the blind plate 100, compensate for the surface error of the blind plate 100, ensure the close abutment of the abutting member 3 and the blind plate 100, prevent vibration and reduce noise, and enhance the reliability of the blind plate switching auxiliary device.

[0063] In some embodiments, the first elastic member 5 is a metal elastic member, which can provide stable elastic support and withstand the pressure of the abutting member 3 on the blind plate 100 under high load, has strong deformation resistance, and improves the structural reliability of the blind plate switching auxiliary device.

[0064] In some embodiments, the first elastic member 5 is a plastic elastic member, which is light in weight and has flexible buffering, can reduce the rigid impact of the abutting member 3 on the blind plate 100, and is suitable for low load scenarios.

[0065] In some embodiments, the first elastic member 5 is a composite material elastic member. The composite material elastic member can combine the advantages of multiple materials, has high strength, wear resistance and elastic buffering performance, and improves the abutting stability of the abutting member 3 on the blind plate 100 and the service life of the blind plate switching auxiliary device.

[0066] As shown in Figure 2 The second elastic member 6 is arranged on the side where the first positioning hook 21 and the second positioning hook 22 are buckled with the outer edge of the blind plate 100. The second elastic member 6 can buffer the operation impact force, prevent damage to the outer edge of the blind plate 100, and improve the reliability of clamping and positioning.

[0067] In this embodiment, the second elastic member 6 is a flexible gasket. The elastic deformation of the flexible gasket can compensate for the buckling gap between the first positioning hook 21 and the second positioning hook 22 and the outer edge of the blind plate 100, enhance the close fit of the first positioning hook 21 and the second positioning hook 22 with the outer edge of the blind plate 100, and improve the reliability of clamping and positioning.

[0068] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A blind switch assisting device for assisting opening or closing of a blind plate (100) capable of opening or blocking a pipe (200), characterized in that, The blind plate switch auxiliary device comprises: a frame (1) with adjustable length; first and second positioning hooks (21 and 22) respectively arranged at two ends of the frame (1) and configured to be positioned by being buckled with the outer edge of the blind plate (100); an abutting piece (3) with extension direction parallel to that of the first and second positioning hooks (21 and 22), threadedly connected with the frame (1) and capable of rotating relative to the frame (1) and moving along the axial direction of the abutting piece (3) and capable of abutting with the blind plate (100).

2. The blind-mat switch assist device according to claim 1, characterized by, The frame (1) comprises first and second telescopic components (11 and 12) arranged at intervals, with the first and second ends of the first telescopic component (11) and the first and second ends of the second telescopic component (12) connected with the two sides of the first and second positioning hooks (21 and 22) respectively, and the first and second telescopic components (11 and 12) capable of telescopic movement to adjust the distance between the first and second positioning hooks (21 and 22).

3. The blind-mat switch assist device of claim 2, wherein, The first telescopic component (11) comprises first and second movable members (111 and 112) and a first fixed member (113) with the first ends of the first and second movable members (111 and 112) slidably connected with the two ends of the first fixed member (113) respectively; The second telescopic component (12) comprises third and fourth movable members (121 and 122) and a second fixed member (123) with the first ends of the third and fourth movable members (121 and 122) slidably connected with the two ends of the second fixed member (123) respectively; The second ends of the first and third movable members (111 and 121) are connected with the two sides of the first positioning hook (21) respectively, and the second ends of the second and fourth movable members (112 and 122) are connected with the two sides of the second positioning hook (22) respectively.

4. The blind-mat assisting device according to claim 3, characterized by The frame (1) further comprises a first mounting ring (13) arranged between the first and third movable members (111 and 121) and connected with the first and third movable members (111 and 121) respectively, and the abutting piece (3) is arranged in the first mounting ring (13) and threadedly connected with the first mounting ring (13); and / or The frame (1) further comprises a second mounting ring (14) arranged between the second movable part (112) and the fourth movable part (122), and the outer circumferential surface of the second mounting ring (14) is connected with the second movable part (112) and the fourth movable part (122), and the abutting part (3) is arranged in the second mounting ring (14) and is threadedly connected with the second mounting ring (14).

5. The blind-mat assisting device according to claim 4, characterized by The abutting part (3) comprises a first nut (31), a second nut (32) and a screw rod (33), the first nut (31) and the second nut (32) are respectively fixedly arranged at two ends of the screw rod (33), the screw rod (33) is arranged in the first mounting ring (13) and is threadedly connected with the first mounting ring (13), the second nut (32) can rotate and drive the screw rod (33) to rotate, so as to drive the first nut (31) to move along the axial direction of the screw rod (33) and abut against the blind plate (100); and / or; The screw rod (33) is arranged in the second mounting ring (14) and is threadedly connected with the second mounting ring (14), the second nut (32) can rotate and drive the screw rod (33) to rotate, so as to drive the first nut (31) to move along the axial direction of the screw rod (33) and abut against the blind plate (100).

6. The blind-mat switch assist device of claim 3, wherein, The frame (1) further comprises a third mounting ring (15) arranged between the first fixed part (113) and the second fixed part (123), and the outer circumferential surface of the third mounting ring (15) is connected with the first fixed part (113) and the second fixed part (123); The blind plate switch auxiliary device further comprises a connecting piece (41) capable of penetrating through two third mounting rings (15) of two frames (1) and being tightly connected with the two third mounting rings (15).

7. The blind switch assist device according to any one of claims 1 to 6, characterized in that, The side of the abutting part (3) abutting against the blind plate (100) is provided with a first elastic piece (5).

8. The blind-mat assisting device according to claim 7, characterized by The first elastic piece (5) is a multi-layer combined gasket.

9. The blind switch assist device of any one of claims 1-6, wherein, The side of the first positioning hook (21) and the second positioning hook (22) engaged with the outer edge of the blind plate (100) is provided with a second elastic piece (6).

10. The blind-mat switch assist device of claim 9, wherein, The second elastic piece (6) is a flexible gasket. The side of the first positioning hook (21) and the second positioning hook (22) engaged with the outer edge of the blind plate (100) is provided with a second elastic piece (6). The second elastic piece (6) is a flexible gasket.

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