Quick-opening blind plate suitable for receiving and sending ball cylinder and filter

Abstract

The utility model relates to a quick-opening blind plate suitable for a ball receiving and sending cylinder and a filter, which comprises a cylinder body, a head cover, a connecting assembly, an adjusting assembly and a limiting assembly, and a bushing is arranged on the cylinder body; the connecting assembly is arranged on the barrel, and the head cover is hinged to the barrel through the connecting assembly. The adjusting assembly is arranged on the connecting assembly and arranged on the peripheral surface of the barrel in a sleeving mode, the adjusting assembly is provided with a contact surface, the contact surface is used for making contact with the surface of the barrel and the surface of the head cover, and the adjusting assembly further has an opening state and a locking state; the limiting assembly is connected with the adjusting assembly, a through hole is formed in the limiting assembly, the limiting assembly comprises a safety screw plug, and the safety screw plug is in threaded connection with the lining; when the head cover is closed and the adjusting assembly is in a locking state, the contact surface abuts against the surface of the cylinder body and the surface of the head cover, and the through hole is coaxial with the lining. When the adjusting assembly is in the open state, a gap is formed between the contact face and the surface of the barrel. According to the utility model, when the head cover is opened, the safety plug screw is taken down to adjust the adjusting assembly to the open state, and then the head cover can be opened.

Description

Technical Field

[0001] The present application relates to the field of quick-opening blind plates, and in particular to a quick-opening blind plate suitable for transmitting and receiving ball cylinders and filters. Background Art

[0002] The quick-opening blind plate is a mechanical device used on the circular opening of a pressure pipe or pressure vessel and can be opened or closed quickly. It is widely used in the natural gas field on equipment that needs to be opened and closed frequently.

[0003] Large quick-opening blind plates, especially those with heavy clamps, are time-consuming and laborious to open and close. Utility Model Content

[0004] The present application provides a quick-opening blind plate suitable for sending and receiving ball cylinders and filters, which can solve the problem that the quick-opening blind plate with a heavy clamp mass is time-consuming and laborious to open and close in the related art.

[0005] The present application provides a quick-opening blind plate suitable for sending and receiving ball cylinders and filters, which comprises: a cylinder body, a head cover, a connecting assembly, an adjusting assembly and a limiting assembly, wherein a bushing is arranged on the cylinder body; the connecting assembly is arranged on the cylinder body, and the head cover is hinged to the cylinder body through the connecting assembly; the adjusting assembly is arranged on the connecting assembly and is sleeved on the outer peripheral surface of the cylinder body, the adjusting assembly has a contact surface, the contact surface is used to contact with the cylinder body surface and the head cover surface, and the adjusting assembly also has an open state and a locked state; the limiting assembly is connected to the adjusting assembly, a through hole is provided on the limiting assembly, the limiting assembly comprises a safety screw plug, and the safety screw plug is threadedly connected to the bushing; when the head cover is closed and the adjusting assembly is in a locked state, the contact surface abuts against the cylinder body surface and the head cover surface, and the through hole is coaxial with the bushing; when the adjusting assembly is in an open state, there is a gap between the contact surface and the cylinder body surface.

[0006] In some embodiments, the connecting assembly includes: a support plate, a connecting rod and a connecting plate, the support plate is fixedly connected to the cylinder; the connecting rod is fixedly connected to the support plate; the connecting plate is rotatably connected to the connecting rod, and the connecting plate is fixed to the head cover.

[0007] In some embodiments, the adjustment assembly includes: a pillar, two clamps, two connecting rods and a handle, wherein the pillar is fixedly connected to the connecting assembly; the two clamps are respectively located on both sides of the outer circumferential surface of the cylinder, and one end of the clamp is connected to the pillar; the two connecting rods are respectively arranged at the other ends of the two clamps, and the two connecting rods are hinged through a connecting rod; the handle is hinged to the connecting rod.

[0008] In some embodiments, the clamp member includes: a rotating ear and a clamp body, wherein the rotating ear is hinged to the pillar; one end of the clamp body is fixed to the rotating ear, and the other end is provided with a connecting rod.

[0009] In some embodiments, the connecting rod member includes: a connecting block and an adjusting rod, wherein the connecting block is fixed on the clamp member; one end of the adjusting rod is hinged to the connecting block, and the other end of the adjusting rod is hinged to the connecting rod.

[0010] In some embodiments, a nut is threadedly connected to the pillar, and a washer is provided between the nut and the clamp.

[0011] In some embodiments, the limit assembly includes: two limit plates, the through hole is opened on the limit plates, when the contact surface abuts against the surface of the cylinder and the surface of the head cover, there is an overlapping area between the two limit plates, the through hole is located in the overlapping area, and the through hole is used for passing the safety screw plug.

[0012] In some embodiments, the middle portion of the inner wall of the head cover is protruding, and a recessed space is formed between the head cover and the inner wall, and the recessed space is engaged with the end portion of the cylinder.

[0013] In some embodiments, a sealing ring is provided on the outer peripheral surface of the barrel and / or the inner wall of the head cover.

[0014] In some embodiments, a handle and a snap ring are provided on the head cover.

[0015] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0016] The embodiment of the present application provides a quick-opening blind plate suitable for a receiving and sending ball cylinder and a filter. When the head cover is closed and the adjustment component is in a locked state, the contact surface on the adjustment component abuts against the surface of the cylinder body and the surface of the head cover, and at the same time, the safety screw plug is passed through the through hole and connected to the bushing, so that the cylinder body and the head cover can be fixed; when opening the head cover, remove the safety screw plug, adjust the adjustment component to the open state, and the head cover can be opened, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the quick-open blind plate for transmitting and receiving ball cylinders and filters provided in an embodiment of the present application when opened (viewing angle 1);

[0019] Figure 2 A schematic diagram of the quick-open blind plate for transmitting and receiving ball cylinders and filters provided in an embodiment of the present application when opened (viewing angle 2);

[0020] Figure 3 A schematic diagram of the quick-open blind plate for transmitting and receiving ball cylinders and filters provided in an embodiment of the present application when opened (viewing angle three);

[0021] Figure 4 A schematic diagram of a quick-open blind plate closed for a transmitting and receiving ball barrel and a filter provided in an embodiment of the present application (viewing angle 1);

[0022] Figure 5 A schematic diagram of the closed quick-open blind plate for the transmitting and receiving ball cylinder and the filter provided in the embodiment of the present application (viewing angle 2);

[0023] Figure 6 A schematic diagram of the closed quick-open blind plate for the transmitting and receiving ball cylinder and the filter provided in the embodiment of the present application (viewing angle 3);

[0024] Figure 7 A cross-sectional view of a quick-open blind plate when closed, which is suitable for a transmitting and receiving ball cylinder and a filter, provided in an embodiment of the present application.

[0025] In the figure: 1, cylinder; 10, sealing ring;

[0026] 2. Head cover; 20. Handle; 21. Clamp;

[0027] 3. Connecting assembly; 30. Support plate; 31. Connecting rod; 32. Connecting plate;

[0028] 4. Adjustment assembly; 40. Pillar; 41. Rotating ear; 42. Washer; 43. Clamp body; 44. Connecting block; 45. Adjustment rod; 46. Handle; 47. Connecting rod; 48. Nut;

[0029] 5. Limiting assembly; 50. Limiting plate; 51. Through hole; 52. Safety screw plug; 53. Bushing. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] The embodiment of the present application provides a quick-opening blind plate suitable for sending and receiving ball cylinders and filters, which can solve the problem that the quick-opening blind plate with a large clamp mass is time-consuming and laborious to open and close in the related art.

[0032] See also Figures 1 to 7The embodiment of the present application provides a quick-opening blind plate suitable for a ball receiving and sending cylinder and a filter, which comprises: a cylinder body 1, a head cover 2, a connecting component 3, an adjusting component 4 and a limiting component 5, wherein the cylinder body 1 is provided with a bushing 53; the connecting component 3 is provided on the cylinder body 1, and the head cover 2 is hinged to the cylinder body 1 through the connecting component 3; the adjusting component 4 is provided on the connecting component 3 and sleeved on the outer peripheral surface of the cylinder body 1, and the adjusting component 4 has a contact surface, and the contact surface is used to contact with the surface of the cylinder body 1 and the surface of the head cover 2 The adjusting component 4 also has an open state and a locked state; the limiting component 5 is connected to the adjusting component 4, a through hole 51 is provided on the limiting component 5, the limiting component 5 includes a safety plug 52, and the safety plug 52 is threadedly connected with the bushing 53; when the head cover 2 is closed and the adjusting component 4 is in a locked state, the contact surface abuts against the surface of the cylinder 1 and the surface of the head cover 2, and the through hole 51 is coaxial with the bushing 53; when the adjusting component 4 is in an open state, there is a gap between the contact surface and the surface of the cylinder 1.

[0033] In the present application, when the head cover 2 is closed and the adjustment component 4 is in a locked state, the contact surface on the adjustment component 4 abuts against the surface of the cylinder 1 and the surface of the head cover 2, and at the same time, the safety screw plug 52 is passed through the through hole 51 and connected to the bushing 53, so that the cylinder 1 and the head cover 2 can be fixed; when opening the head cover 2, remove the safety screw plug 52, adjust the adjustment component 4 to the open state, and the head cover 2 can be opened, which is simple and convenient to operate.

[0034] Specifically, when the quick-open blind plate is closed, the head cover 2 seals the mouth of the cylinder 1. At this time, the state of the adjustment component 4 can be adjusted to change the adjustment component 4 to a locked state, so that the contact surface on the adjustment component 4 abuts against the surface of the cylinder 1 and the head cover 2. When the adjustment component 4 is in a locked state, the through hole 51 and the bushing 53 are coaxially arranged, the limit component 5 is connected to the adjustment component 4, and the safety screw plug 52 is passed through the through hole 51 and then threadedly connected with the bushing 53 to limit and fix the limit component 5 on the cylinder 1, thereby keeping the adjustment component 4 in a locked state. When the head cover 2 is opened, the safety screw plug 52 is removed so that the limit component 5 loses the limit of the safety screw plug 52, and the adjustment component 4 can be adjusted from the locked state to the open state.

[0035] Based on the above embodiments, in this embodiment, see Figure 1 and Figure 7 As shown, the middle part of the inner wall of the head cover 2 is protruding, and a recessed space is formed between the head cover 2 and the inner wall, and the recessed space is engaged with the end of the cylinder body 1.

[0036] Specifically, when the head cover 2 is closed with the cylinder body 1, the protruding portion of the middle of the inner wall of the head cover 2 is located inside the cylinder mouth of the cylinder body 1, and the cylinder wall at the end of the cylinder body 1 is engaged in the recessed space in the inner wall of the head cover 2, so that the head cover 2 and the cylinder body 1 are closed more tightly.

[0037] Furthermore, a sealing ring 10 is provided on the outer peripheral surface of the cylinder 1 and / or the inner wall of the head cover 2.

[0038] Specifically, in some possible embodiments, a sealing ring 10 is provided on the outer peripheral surface of the cylinder 1. When the head cover 2 and the cylinder 1 are closed, the sealing ring 10 on the cylinder 1 fits with the inner wall surface of the recessed space on the head cover 2;

[0039] In some other possible embodiments, a sealing ring 10 is provided on the inner wall surface of the recessed space on the head cover 2. When the head cover 2 and the cylinder body 1 are closed, the sealing ring 10 on the head cover 2 fits with the outer peripheral surface of the cylinder body 1.

[0040] In some possible embodiments, a sealing ring 10 is provided on the inner wall surface of the recessed space on the head cover 2 and the outer peripheral surface of the cylinder 1. When the head cover 2 and the cylinder 1 are closed, the sealing ring 10 on the cylinder 1 fits with the inner wall surface of the recessed space on the head cover 2, and the sealing ring 10 on the head cover 2 fits with the outer peripheral surface of the cylinder 1; or the sealing ring 10 on the cylinder 1 fits with the sealing ring 10 on the head cover 2.

[0041] The above embodiments are merely multiple possible implementations of the embodiments of the present application, and the embodiments of the present application are not limited thereto.

[0042] On the basis of the above embodiments, in this embodiment, the connecting assembly 3 includes: a support plate 30, a connecting rod 31 and a connecting plate 32, the support plate 30 is fixedly connected to the cylinder 1; the connecting rod 31 is fixedly connected to the support plate 30; the connecting plate 32 is rotatably connected to the connecting rod 31, and the connecting plate 32 is fixed to the head cover 2.

[0043] Specifically, the support plate 30 is fixed to the cylinder 1, and the connecting rod 31 is fixed on the support plate 30, so that the connecting plate 32 is sleeved on the connecting rod 31, and the connecting plate 32 is rotatably connected to the connecting rod 31, and one end of the connecting plate 32 is fixed to the head cover 2. When the connecting plate 32 rotates on the connecting rod 31, it can drive the head cover 2 to open and close.

[0044] In addition, in other embodiments, the support plate 30 is fixedly connected to the cylinder 1; the connecting rod 31 is rotatably connected to the support plate 30; the connecting plate 32 is fixedly connected to the connecting rod 31, and the connecting plate 32 is fixed to the head cover 2.

[0045] That is: fix the support plate 30 to the cylinder 1, and rotatably connect the connecting rod 31 on the support plate 30, so that the connecting plate 32 is sleeved on the connecting rod 31, and the connecting plate 32 and the connecting rod 31 are fixed, and one end of the connecting plate 32 is fixed to the head cover 2. When the connecting rod 31 rotates on the support plate 30, it can drive the head cover 2 to open and close.

[0046] Further, the head cover 2 is provided with a handle 20 and a snap ring 21. The handle 20 and the snap ring 21 are fixedly connected to the surface of the head cover 2, and by pulling the handle 20 or the snap ring 21, it is convenient for the user to quickly open and close the head cover 2.

[0047] On the basis of the above embodiments, in this embodiment, the adjustment component 4 includes: a pillar 40, two clamps, two connecting rods and a handle 46, the pillar 40 is fixedly connected to the connecting component 3; the two clamps are respectively located on both sides of the outer circumferential surface of the cylinder 1, and one end of the clamp is connected to the pillar 40; the two connecting rods are respectively arranged at the other ends of the two clamps, and the two connecting rods are hinged by a connecting rod 47; the handle 46 is hinged to the connecting rod 47.

[0048] See also Figure 1 As shown, the support 40 is fixedly connected to the support plate 30 on the connecting assembly 3, so that the adjusting assembly 4 is connected to the connecting assembly 3 through the support 40. Two clamps are sleeved on the surface of the support 40, and the inner wall of the clamp is a contact surface, so that the clamp is rotatably connected with the support 40, so when the clamp rotates around the support 40, the contact surface of the clamp can approach or move away from the outer surface of the cylinder 1. In order to facilitate adjustment, a connecting rod is set on the clamp, and the connecting rods on the two clamps are hinged through a connecting rod 47 to limit the opening range of the clamp; and a handle 46 is hinged on the connecting rod 47, and the two clamps can be controlled to rotate around the support 40 by operating the handle 46.

[0049] More specifically, the clamp comprises: a rotating ear 41 and a clamp body 43 , wherein the rotating ear 41 is hinged to the support 40 ; one end of the clamp body 43 is fixed to the rotating ear 41 , and the other end is provided with a connecting rod.

[0050] See also Figure 7 As shown, the rotating ear 41 is sleeved on the surface of the pillar 40 and is hinged with the pillar 40. After the two rotating ears 41 are set on the pillar 40, a nut 48 is set on the topmost rotating ear 41, that is, the pillar 40 is threaded with a nut 48, the nut 48 is threadedly connected to the pillar 40, and a washer 42 is set between the nut 48 and the clamp; since a limiting ring is fixed on the surface of the pillar 40 near the bottom, the two rotating ears 41 can be clamped and limited by the nut 48 and the limiting ring, that is, the two rotating ears 41 can be limited to move in the axial direction of the pillar 40.

[0051] A clamp body 43 is fixed to one end of each rotating ear 41, and the contact surface is the inner wall surface of the clamp body 43. The width dimension of the inner wall surface of the clamp body 43 should be set sufficient. Sufficient here means that when the head cover 2 seals the barrel mouth of the cylinder 1 and the adjustment assembly 4 is in a locked state, the inner wall surface of the clamp body 43 can simultaneously resist the outer peripheral surface of the cylinder 1 and the outer peripheral surface of the head cover 2.

[0052] Furthermore, a groove is opened on the inner wall surface of the clamp body 43, and the cylinder body 1 and the head cover 2 are further limited by the groove: when the inner wall surface of the clamp body 43 simultaneously abuts against the outer peripheral surface of the cylinder body 1 and the outer peripheral surface of the head cover 2, the contact part of the outer peripheral surface of the cylinder body 1 and the outer peripheral surface of the head cover 2 with the clamp body 43 is located inside the groove.

[0053] See also Figure 2 and Figure 3 As shown, the connecting rod member includes: a connecting block 44 and an adjusting rod 45 , wherein the connecting block 44 is fixed on the clamp member; one end of the adjusting rod 45 is hinged to the connecting block 44 , and the other end is hinged to the connecting rod 47 .

[0054] Specifically, the connecting block 44 is fixedly connected to the outer surface of the clamp body 43, and the adjusting rod 45 is hinged to the connecting block 44 at the end of the connecting block 44 away from the clamp body 43, and the two adjusting rods 45 are hinged through a connecting rod 47 to connect the two clamp parts; the handle 46 is sleeved on the surface of the connecting rod 47, and the handle 46 and the connecting rod 47 are hinged; when the safety screw plug 52 is taken out from the bushing 53, the distance between the two connecting blocks 44 can be adjusted by operating the handle 46 by adjusting the posture of the adjusting rod 45: the larger the distance between the two connecting blocks 44, the farther the contact surface on the clamp body 43 is from the outer peripheral surface of the cylinder 1, and conversely, the smaller the distance between the two connecting blocks 44, the closer the contact surface on the clamp body 43 is to the outer peripheral surface of the cylinder 1.

[0055] On the basis of the above embodiments, in this embodiment, the limit assembly 5 includes: two limit plates 50, the through hole 51 is opened on the limit plate 50, when the contact surface abuts against the surface of the cylinder 1 and the surface of the head cover 2, there is an overlapping area between the two limit plates 50, the through hole 51 is located in the overlapping area, and the through hole 51 is used for the safety screw plug 52 to pass through.

[0056] In this embodiment, through holes 51 are formed on the two limit plates 50. When the clamp body 43 is in contact with the surfaces of the cylinder 1 and the head cover 2, the two limit plates 50 overlap, and the through holes 51 are located in the overlapping area.

[0057] The two limit plates 50 are fixed to the two clamp bodies 43 respectively, and a through hole 51 is formed on the limit plate 50, and the diameter of the through hole 51 is equal to the diameter of the safety screw plug 52. When the adjustment assembly 4 is in the locked state, the two through holes 51 are coaxially arranged with the bushing 53, and the two through holes 51 are located above the bushing 53; it should be noted that the above here is Figure 2The placement of the cylinder 1 shown is taken as an example for explanation. When the cylinder 1 is placed in different ways, the relative positions of the through hole 51 and the bushing 53 are also different. No matter how the cylinder 1 is placed, when fixing the adjustment component 4, the safety screw plug 52 first needs to pass through the two through holes 51 and then be threadedly connected with the bushing 53.

[0058] When the diameter of the through hole 51 is larger than the diameter of the safety screw plug 52, since the diameter of the through hole 51 is too large, after the safety screw plug 52 passes through the through hole 51 and is threadedly connected with the bushing 53, the clamp body 43 will slightly rotate around the support 40. Therefore, the diameter of the through hole 51 is set equal to the diameter of the safety screw plug 52, so that after the safety screw plug 52 passes through the through hole 51, the inner wall of the through hole 51 fits with the outer peripheral surface of the safety screw plug 52, so that the clamp body 43 tightly abuts against the cylinder 1 and the head cover 2.

[0059] A pressure gauge is arranged on the quick-open blind plate. When the pressure gauge reads zero, the limit assembly 5 is opened, that is, the safety screw plug 52 is removed, and the handle 46 is lifted to open the clamp body 43. The two clamp bodies 43 are stretched out, and the head cover 2 can be opened. The operation is simple and convenient. When closing, the handle 46 is pulled down to close the clamp body 43, and the through hole 51 of the limit assembly 5 and the bushing 53 are aligned. At this time, the safety screw plug 52 can be inserted into the through hole 51, and then the safety screw plug 52 is screwed into the bushing 53 to close the head cover 2.

[0060] Since a pressure gauge is provided on the quick-opening blind plate to remind the operator whether there is pressure in the cylinder 1, the limit assembly 5 and the clamp body 43 are designed as a whole. Before the clamp body 43 is opened, the safety screw plug 52 must be removed before the operation can be continued, thereby ensuring the safety and reliability of the operator's operation.

[0061] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0062] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0063] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A quick-opening blind plate suitable for sending and receiving ball cylinders and filters, characterized in that: It includes: A cylinder (1), wherein a bushing (53) is provided on the cylinder (1); Head cover (2); A connecting component (3), wherein the connecting component (3) is arranged on the cylinder (1), and the head cover (2) is hingedly connected to the cylinder (1) via the connecting component (3); An adjusting component (4), the adjusting component (4) being arranged on the connecting component (3) and sleeved on the outer peripheral surface of the cylinder (1), the adjusting component (4) having a contact surface, the contact surface being used to contact the surface of the cylinder (1) and the surface of the head cover (2), the adjusting component (4) also having an open state and a locked state; A limit assembly (5), the limit assembly (5) is connected to the adjustment assembly (4), a through hole (51) is provided on the limit assembly (5), the limit assembly (5) comprises a safety screw plug (52), and the safety screw plug (52) is threadedly connected to the bushing (53); When the head cover (2) is closed and the adjustment assembly (4) is in a locked state, the contact surface abuts against the surface of the cylinder (1) and the surface of the head cover (2), and the through hole (51) and the bushing (53) are coaxial; When the adjustment component (4) is in an open state, there is a gap between the contact surface and the surface of the cylinder (1).

2. The quick-opening blind plate suitable for sending and receiving ball cylinders and filters as claimed in claim 1, characterized in that: The connection component (3) comprises: A support plate (30), wherein the support plate (30) is fixedly connected to the cylinder (1); A connecting rod (31), wherein the connecting rod (31) is fixedly connected to the support plate (30); A connecting plate (32), wherein the connecting plate (32) is rotatably connected to the connecting rod (31), and the connecting plate (32) is fixed to the head cover (2).

3. The quick-opening blind plate suitable for sending and receiving ball cylinders and filters as claimed in claim 1, characterized in that: The regulating component (4) comprises: A support (40), wherein the support (40) is fixedly connected to the connecting assembly (3); Two clamping members, the two clamping members are respectively located on both sides of the outer peripheral surface of the cylinder (1), and one end of the clamping member is connected to the support (40); Two connecting rods, the two connecting rods are respectively arranged at the other ends of the two clamping members, and the two connecting rods are hingedly connected via a connecting rod (47); A handle (46) is hinged to a connecting rod (47).

4. The quick-opening blind plate suitable for sending and receiving ball cylinders and filters as claimed in claim 3, characterized in that: The clamp comprises: A rotating ear (41), wherein the rotating ear (41) is hinged to the support (40); A clamp body (43), one end of which is fixed to the rotating ear (41), and the other end of which is provided with a connecting rod.

5. The quick-opening blind plate suitable for sending and receiving ball cylinders and filters as claimed in claim 3, characterized in that: The connecting rod comprises: A connecting block (44), wherein the connecting block (44) is fixed on the clamping member; An adjusting rod (45), one end of which is hinged to the connecting block (44), and the other end of which is hinged to the connecting rod (47).

6. The quick-opening blind plate suitable for sending and receiving ball cylinders and filters as claimed in claim 3, characterized in that: A nut (48) is threadedly connected to the support column (40), and a washer (42) is arranged between the nut (48) and the clamp.

7. The quick-opening blind plate suitable for sending and receiving ball cylinders and filters as claimed in claim 1, characterized in that: The limiting component (5) comprises: Two limiting plates (50), the through hole (51) being formed on the limiting plates (50); when the contact surface abuts against the surface of the cylinder (1) and the surface of the head cover (2), there is an overlapping area between the two limiting plates (50); the through hole (51) is located in the overlapping area; and the through hole (51) is used for the safety screw plug (52) to pass through.

8. The quick-opening blind plate suitable for sending and receiving ball cylinders and filters as claimed in claim 1, characterized in that: The middle part of the inner wall of the head cover (2) is protruding, and a recessed space is formed between the head cover and the inner wall, and the recessed space is engaged with the end of the cylinder body (1).

9. The quick-opening blind plate suitable for sending and receiving ball cylinders and filters as claimed in claim 8, characterized in that: A sealing ring (10) is provided on the outer peripheral surface of the cylinder (1) and / or the inner wall of the head cover (2).

10. The quick-opening blind plate suitable for sending and receiving ball cylinders and filters as claimed in claim 1, characterized in that: The head cover (2) is provided with a handle (20) and a clamping ring (21).

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