Head cover of filter and basket filter

Abstract

The invention relates to a head cover of a filter and a basket filter, the head cover of the filter comprises a high-neck block, a blind plate, a lifting mechanism and a safety locking mechanism, an access hole is formed in the high-neck block, and the blind plate is arranged on the high-neck block through the lifting mechanism and can block the access hole; the safety locking mechanism comprises a safety block, a plugging block, an elastic piece, a locking block and a first adjusting assembly, an external thread is arranged on the safety block, and a first threaded hole in threaded connection with the external thread is formed in the high-neck block; a first through hole and a second through hole communicated with the first through hole are formed in the safety block; the plugging block is slidably arranged in the first through hole through the elastic piece, and the plugging block can plug the second through hole; the locking block is wound on the blind plate in an arc shape through a first adjusting assembly, and a locking groove which communicates with the access hole and is used for containing the locking block is formed in the high-neck block; when the locking block is located in the locking groove, the safety block is located between the two ends of the locking block. The method has the effect of reducing potential safety hazards.

Description

Technical Field

[0001] The present application relates to the technical field of filters, and in particular to a filter head cover and a basket filter. Background Art

[0002] The filter is a purification device that uses structures such as filter elements to filter out various impurities in the gas, such as moisture and tiny particles in the fuel gas.

[0003] At present, a Chinese patent with authorization announcement number CN213610397U discloses a natural gas filter, including a cylinder, a filter element, a flange cover, a head, a positioning pipe, a medium outlet pipe, a medium inlet pipe and a drain port, wherein the filter element is arranged at the upper end of the cylinder and is tightly fitted under the flange cover, the medium outlet pipe is connected to one side of the cylinder and is bent and extended to be connected to the positioning pipe, the positioning pipe is located at the lower end of the filter element and is connected to the filter element, the medium inlet pipe is connected to the bottom of the head and extends upward to the bottom of the medium outlet pipe, and the drain port is obliquely connected to the bottom of the head and is located on one side of the medium inlet pipe.

[0004] When the pressure in the cylinder has not been completely released and the operator opens the flange cover, the air pressure in the cylinder will push the flange cover away, posing a major safety hazard to the operator. Summary of the invention

[0005] In order to reduce potential safety hazards, the present application provides a filter head cover and a basket filter.

[0006] In a first aspect, the present application provides a filter head cover, which adopts the following technical solution: A head cover of a filter, comprising a high neck block, a blind plate and a lifting mechanism, wherein the high neck block is provided with an inlet and outlet hole, the blind plate is arranged on the high neck block through the lifting mechanism and can block the inlet and outlet hole; further comprising a safety locking mechanism, the safety locking mechanism comprising a safety block, a blocking block, an elastic member, a locking block and a first adjusting assembly, the safety block is provided with an external thread, the high neck block is provided with a first threaded hole threadedly connected with the external thread; the safety block is provided with a first through hole, the safety block is provided with a second through hole connected with the first through hole; the blocking block is slidably arranged in the first through hole through the elastic member, and the blocking block can block the second through hole; the locking block is wrapped around the blind plate in an arc shape through the first adjusting assembly, and the high neck block is provided with a locking groove connected with the inlet and outlet hole and used for placing the locking block; when the locking block is located in the locking groove, the safety block is located between the two ends of the locking block.

[0007] By adopting the above technical solution, when the blocking block no longer blocks the second through hole, the operator holds the toggle rod and extends the toggle rod into the second through hole, then rotates the toggle rod, and the toggle rod drives the safety block to rotate, so that the external thread on the safety block is separated from the first threaded hole, and the safety block is separated from the blind plate; then the operator moves the locking block out of the locking groove through the first adjustment component; finally, the blind plate is transferred out of the inlet and outlet hole of the high neck block by the lifting mechanism. When the blocking block blocks the second through hole, the toggle rod cannot be inserted into the second through hole of the safety block, so the operator must wait until there is no pressure in the filter and the blocking block no longer blocks the second through hole before the safety block can be separated from the blind plate; and when the locking block is located in the locking groove, the safety block is located between the two ends of the locking block, so that when the safety block is connected to the blind plate, the operator can avoid adjusting the locking block, thereby reducing safety hazards; therefore, the safety locking mechanism provided in the present application can not only avoid the operator from mistakenly opening the blind plate, thereby reducing safety hazards.

[0008] Optionally, the first adjustment assembly includes a first cylindrical block, a second cylindrical block, a first adjustment block, a horseshoe block, a second adjustment block and a third adjustment block, the first cylindrical block and the second cylindrical block are both arranged on the blind plate, and a defined adjustment space is formed between the first cylindrical block and the second cylindrical block; one end of the first adjustment block is connected to the locking block and the other end passes through the defined adjustment space; one end of the horseshoe block is connected to an end of the first adjustment block passing through the defined adjustment space; one end of the second adjustment block is connected to an end of the horseshoe block away from the first adjustment block, and a third through hole is provided on the second adjustment block; one end of the third adjustment block is connected to the second adjustment block and the other end is connected to the locking block; when the locking block is located in the locking groove, the safety block is located between the first adjustment block and the second adjustment block and corresponds to the opening of the horseshoe block.

[0009] By adopting the above technical solution, when the safety block is separated from the blind plate, the operator inserts the toggle rod into the third through hole of the second adjustment block, and then rotates the toggle rod. The toggle rod drives the second adjustment block to move, and the second adjustment block drives the third adjustment block and the horseshoe block to move. The horseshoe block drives the first adjustment block to move, and the moving first adjustment block and the third adjustment block will drive the locking block to move, so that the locking block moves out of the locking groove. The first adjustment assembly provided in the present application is relatively convenient to operate relative to the bolt flange connection method, which saves time and improves efficiency.

[0010] Optionally, a limiting assembly is provided on the blind plate, and the limiting assembly includes a connecting plate, a limiting block and mounting bolts, the connecting plate is connected to the blind plate via the mounting bolts, the limiting block is provided on the connecting plate, and the locking block can resist the limiting block.

[0011] By adopting the above technical solution, when the locking block moves out of the locking groove, it will conflict with the limiting block, and the limiting block will limit the position of the locking block, so that the locking block is still wrapped around the blind plate, thereby improving the stability of the locking block on the blind plate.

[0012] Optionally, a limiting mechanism is provided on the safety block, and the limiting mechanism includes a connecting block, a fourth adjustment block and a first limiting block, and the connecting block is provided with a fourth through hole for the safety block to pass through; the first limiting block is arranged on the connecting block; the fourth adjustment block is arranged on the safety block and abuts against the connecting block; when the locking block is located in the locking groove, the first limiting block is located in the locking groove, and the two ends of the first limiting block respectively abut against the two ends of the locking block.

[0013] By adopting the above technical solution, when the locking block is located in the locking groove, the two ends of the first limiting block will respectively contact the two ends of the locking block, so that the locking block is better located in the locking groove; therefore, the setting of the limiting component can improve the stability of the locking block in the locking groove.

[0014] Optionally, the lifting mechanism includes a first support block, a second support block, a third support block, a lifting screw, an adjustment disk and a lifting seat, and the lifting seat is arranged on the blind plate; the first support block is arranged on the high neck block, the second support block is rotatably arranged on the first support block, the third support block is arranged on the second support block, and a second threaded hole is provided on the third support block; the lifting screw is threadedly connected to the second threaded hole, and one end of the lifting screw is connected to the lifting seat; the adjustment disk is fixedly arranged on the third support block, and the adjustment disk is provided with a third threaded hole threadedly connected to the lifting screw.

[0015] By adopting the above technical solution, when the locking block is no longer located in the locking groove, the operator rotates the adjusting plate, and the adjusting plate drives the lifting screw to rotate, the lifting screw will be displaced relative to the third support block, and the lifting screw will drive the lifting seat to move relative to the high neck block, and the lifting seat drives the blind plate to move so that the blind plate moves to the top of the high neck block and no longer covers the inlet and outlet holes on the high neck block; then the second support block is rotated, the second support block drives the third support block to move, the lifting screw on the third support block drives the lifting seat to move, and the lifting seat drives the blind plate to move, so that the blind plate is no longer located directly above the high neck block.

[0016] Optionally, a locking mechanism is provided on the first support block, and the locking mechanism includes a first unlocking block, a first spring, a first locking block, a second spring, a second locking block, a second limiting block, a third spring and a second adjustment assembly. A rotation groove is provided on the first support block, and the second support block is rotatably arranged in the rotation groove. A fifth through hole connected to the rotation groove is provided on the first support block; the first unlocking block is slidably arranged in the fifth through hole, and the first spring connects the first unlocking block and the first support block; a first groove is provided on the second support block, and the first locking block is slidably arranged in the first groove, and one end of the first locking block can enter the fifth through hole; the second spring connects the first locking block and the second support block; the second locking block is slidably arranged on the third support block and can press against the lifting screw rod; the second adjustment assembly is provided on the second support block, and both the first locking block and the second locking block can be connected to the second adjustment assembly; a second groove is provided on the second support block, and the second limiting block is slidably arranged in the second groove, and one end of the second limiting block can enter the fifth through hole; the third spring connects the second limiting block and the second support block.

[0017] By adopting the above technical solution, when the operator needs to rotate the second support block, first press the first unlocking block to make the first unlocking block move in the direction close to the second support block, and the first unlocking block pushes the first locking block to move so that the first locking block moves into the first groove; the first locking block drives the second locking block to move through the second adjustment component so that the second locking block is pressed against the lifting screw; then the operator rotates the second support block; at this time, the second locking block pressed against the lifting screw can reduce the phenomenon that the lifting screw moves relative to the third support block when the second support block is rotated. When the first locking block is no longer aligned with the fifth through hole, the operator first releases the first unlocking block; when the second limiting block is aligned with the fifth through hole, the third spring restores elastic deformation, and the elastic force of the third spring drives the second limiting block to move so that one end of the second limiting block enters the fifth through hole, and the second support block will not rotate relative to the first support block; therefore, the locking mechanism provided can improve the stability of the lifting screw on the third support block when the second support block is rotated, and can also improve the stability of the second support block on the first support block.

[0018] In the second aspect, the present application provides a basket filter, which adopts the following technical solution: A basket filter comprises a cylinder, a first connecting pipe, a second connecting pipe, a positioning block, a filter element, a medium outlet pipe and a drain pipe, wherein the cylinder is formed with a flow cavity, the first connecting pipe and the second connecting pipe are both arranged on the cylinder and are both connected to the flow cavity; the positioning block is arranged on the cylinder and is located in the flow cavity, and the filter element abuts against the positioning block; a mounting hole connected to the flow cavity is provided on the cylinder, the high neck block is arranged on the cylinder and covers the mounting hole, and the blind plate abuts against the filter element; a sixth through hole is provided on the positioning block, the medium outlet pipe is arranged on the positioning block and is connected to the sixth through hole, and the sixth through hole on the positioning block and the medium outlet pipe form an outflow channel; the medium outlet pipe is connected to the first connecting pipe or the second connecting pipe; the drain pipe is arranged on the cylinder and is connected to the flow cavity.

[0019] By adopting the above technical solution, the gas enters the flow cavity from the first connecting pipe or the second connecting pipe, then enters the outflow channel through the filter element, and finally flows out through the second connecting pipe or the first connecting pipe; when the filter element needs to be replaced after a period of use, the pressure in the flow cavity is first made to be at normal pressure, and then the blind plate no longer blocks the inlet and outlet holes, and then the filter element is taken out of the flow cavity for replacement.

[0020] Optionally, the medium outlet pipe includes a third connecting pipe, a fourth connecting pipe and a sealing plug, the fourth connecting pipe is slidably arranged on the third connecting pipe, and the fourth connecting pipe is connected to the first connecting pipe or the second connecting pipe; the sealing plug is arranged on the fourth connecting pipe, and the sealing plug can be pressed against the first connecting pipe or the second connecting pipe; the sixth through hole on the positioning block, the third connecting pipe and the fourth connecting pipe form the outflow channel; an adjusting mechanism is arranged in the cylinder, the adjusting mechanism includes a rotating block and an adjusting assembly, the rotating block is rotatably arranged on the positioning block, a seventh through hole connected to the sixth through hole is opened on the rotating block, the third connecting pipe is arranged on the rotating block and is connected to the seventh through hole; the adjusting assembly is arranged on the cylinder, and the rotating block and the fourth connecting pipe are both connected to the adjusting assembly.

[0021] By adopting the above technical solution, the adjusting component first makes the fourth connecting tube slide on the third connecting tube, so that the fourth connecting tube no longer conflicts with the first connecting tube or the second connecting tube; then the adjusting component drives the rotating block to rotate, the rotating block drives the third connecting tube to rotate, and the third connecting tube rotates the fourth connecting tube; finally, the adjusting component drives the fourth connecting tube to move, so that the fourth connecting tube is connected with the second connecting tube or the first connecting tube, and the sealing plug is pressed against the side wall of the second connecting tube or the first connecting tube; therefore, the adjusting mechanism provided can adjust the position of the medium outlet pipe, so that the medium outlet pipe is connected with the first connecting pipe or the second connecting pipe as needed.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The safety locking mechanism provided in the present application can not only prevent the operator from accidentally opening the blind plate, thereby reducing potential safety hazards, but also be more convenient to operate than the bolt flange connection method, saving time and thus improving efficiency; 2. The provided limiting component can improve the stability of the locking block in the locking groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a basket filter of a filter head cover in an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the blind plate blocking the inlet and outlet holes in the embodiment of the present application; Figure 3 This is a schematic diagram of the structure in which the blind plate does not block the inlet and outlet holes in the embodiment of the present application; Figure 4 This is a schematic diagram of the structure of the first adjustment component in the embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the blocking block in the embodiment of the present application; Figure 6 This is a schematic diagram of the structure of the lifting mechanism in the embodiment of the present application; Figure 7 for Figure 6 A magnified view of middle; Figure 8 This is a schematic diagram of the structure of the second adjustment component in the embodiment of the present application; Fig. 9 This is a schematic diagram of the structure of a basket filter in an embodiment of the present application; Fig.10 This is a schematic diagram of the structure of the medium outlet pipe in the embodiment of the present application; Fig.11 This is a schematic diagram of the structure of the seventh through hole in the embodiment of the present application; Fig.12 This is a schematic diagram of the structure of the third locking block in the embodiment of the present application.

[0024] Figure numerals: 11, high neck block; 111, inlet and outlet hole; 112, locking groove; 12, blind plate; 121, first threaded hole; 2, lifting mechanism; 21, first support block; 22, second support block; 221, first groove; 222, second groove; 23, third support block; 24, lifting screw rod; 25, adjustment plate; 26, lifting seat; 3, safety locking mechanism; 31, safety block; 311, external thread; 312, first through hole; 313, second through hole; 32, blocking block; 33, elastic member; 3 4. Locking block; 35. First adjustment assembly; 351. First cylindrical block; 352. Second cylindrical block; 353. First adjustment block; 354. Horseshoe block; 355. Second adjustment block; 356. Third adjustment block; 4. Limiting assembly; 41. Connecting plate; 42. Limiting block; 43. Mounting bolt; 5. Limiting mechanism; 51. Connecting block; 52. Fourth adjustment block; 53. First limiting block; 6. Locking mechanism; 61. First unlocking block; 62. First spring; 63. First locking block; 64. Second spring; 65, second locking block; 66, second limiting block; 67, third spring; 68, second adjustment assembly; 681, first gear; 682, second gear; 683, adjustment shaft; 684, first rack; 685, second rack; 71, cylinder; 711, flow chamber; 72, first connecting pipe; 73, second connecting pipe; 74, positioning block; 741, sixth through hole; 75, filter element; 76, medium outlet pipe; 761, third connecting pipe; 762, fourth connecting pipe; 763, sealing plug; 77, exhaust Sewage pipe; 8. Adjustment mechanism; 81. Rotating block; 811. Seventh through hole; 9. Adjustment assembly; 91. First fixed block; 92. First adjustment rod; 93. Second adjustment rod; 94. Third adjustment rod; 95. Fourth support block; 96. Fifth connecting pipe; 97. Adjustment shaft; 98. First bevel gear; 99. Second bevel gear; 910. Adjustment plate; 911. Adjustment bolt; 912. Second fixed block; 913. Third locking block; 914. Fifth spring; 915. Second unlocking block; 916. Positioning pin. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-12 This application is described in further detail.

[0026] The embodiment of the present application discloses a head cover of a filter.

[0027] refer to Figure 1 , Figure 2 and Figure 3 A head cover of a filter includes a high neck block 11, on which an inlet and outlet hole 111 is opened; a lifting mechanism 2 is arranged on the high neck block 11, and a blind plate 12 for blocking the inlet and outlet hole 111 is connected to the lifting mechanism 2, and a safety locking mechanism 3 is arranged on the blind plate 12.

[0028] refer to Figure 3 , Figure 4 and Figure 5 The blind plate 12 is provided with a first threaded hole 121, and the safety locking mechanism 3 includes a cylindrical safety block 31, and the outer wall of the safety block 31 is provided with an external thread 311 threadedly connected with the first threaded hole 121; the safety block 31 is provided with a first through hole 312 along its vertical direction, and the safety block 31 is provided with a second through hole 313 connected with the first through hole 312, and the axis of the second through hole 313 is perpendicular to the axis of the first through hole 312; the safety block 31 is provided with an eleventh through hole connected with the first through hole 312, and the axis of the eleventh through hole coincides with the axis of the first through hole 312, and the cross section of the eleventh through hole is larger than the cross section of the first through hole 312. When the safety block 31 is connected to the blind plate 12 and the high neck block 11 is connected to the cylinder 71 of the filter, the first threaded hole 121, the eleventh through hole and the first through hole 312 are all connected with the cylinder 71.

[0029] A blocking block 32 with a T-shaped vertical section is slidably connected in the eleventh through hole of the safety block 31, and one end of the blocking block 32 can enter the first through hole 312 and block the second through hole 313. An elastic member 33 is sleeved on the blocking block 32, and the elastic member 33 is a sixth spring, one end of the sixth spring is connected to the blocking block 32 and the other end is connected to the high neck block 11; when the sixth spring is in a compressed state, the blocking block 32 blocks the second through hole 313, and when the sixth spring is in a normal state, the blocking block 32 does not block the second through hole 313.

[0030] refer to Figure 2 , Figure 3 and Figure 4 A locking groove 112 connected to the inlet and outlet hole 111 is provided on the high neck block 11, and an arc-shaped locking block 34 is wound around the blind plate 12. When the blind plate 12 blocks the inlet and outlet hole 111, the locking block 34 can enter the locking groove 112 and the safety block 31 is located between the two ends of the locking block 34.

[0031] The blind plate 12 is provided with a first adjustment assembly 35, which includes a first cylindrical block 351 and a second cylindrical block 352 fixedly connected to the blind plate 12, and a limited adjustment space is formed between the first cylindrical block 351 and the second cylindrical block 352; one end of the locking block 34 is fixedly connected to a first adjustment block 353, and the end of the first adjustment block 353 away from the locking block 34 passes through the limited adjustment space; the end of the first adjustment block 353 away from the locking block 34 is rotatably connected to a horseshoe block 354, and the horseshoe block 354 is away from the first adjustment block One end of the block 353 is rotatably connected to the second adjustment block 355; one end of the second adjustment block 355 away from the horseshoe block 354 is rotatably connected to the third adjustment block 356; one end of the third adjustment block 356 away from the second adjustment block 355 is fixedly connected to one end of the locking block 34 away from the first adjustment block 353, and when the locking block 34 is located in the locking groove 112, there is a certain gap between the third adjustment block 356 and the first adjustment block 353, and the first cylindrical block 351 is located between the first adjustment block 353 and the third adjustment block 356. A third through hole is provided on the second adjustment block 355; when the safety block 31 is threadedly connected to the blind plate 12, the safety block 31 is located between the first adjustment block 353 and the second adjustment block 355 and corresponds to the opening of the horseshoe block 354; when the locking block 34 is separated from the locking groove 112, the gap between the third adjustment block 356 and the first adjustment block 353 becomes smaller, and the third adjustment block 356 abuts against the first cylindrical block 351.

[0032] refer to Figure 2 , Figure 3 and Figure 4 In order to improve the stability of the locking block 34 in the locking groove 112, a limiting mechanism 5 is provided on the blind plate 12, and the limiting mechanism 5 includes a connecting block 51, and a fourth through hole is provided on the connecting block 51 for the safety block 31 to pass through; a first limiting block 53 is fixedly connected to one end of the connecting block 51, and when the locking block 34 is located in the locking groove 112, the first limiting block 53 is located in the locking groove 112, and the two ends of the first limiting block 53 respectively contact the two ends of the locking block 34, and in order for the first limiting block 53 to better contact the first limiting block 53, both ends of the first limiting block 53 are provided with chamfers; a fourth adjusting block 52 is fixedly connected to the safety block 31, and the cross-section of the fourth adjusting block 52 is larger than the cross-section of the fourth through hole, and the fourth adjusting block 52 can contact the connecting block 51.

[0033] refer to Figure 2 and Figure 4In order to reduce the phenomenon of the locking block 34 being separated from the blind plate 12, a plurality of limiting components 4 are provided on the blind plate 12, and the limiting components 4 include a connecting plate 41 that contacts the blind plate 12, and a mounting bolt 43 is provided on the connecting plate 41, and the mounting bolt 43 passes through the connecting plate 41 and is threadedly connected to the blind plate 12; an L-shaped limiting block 42 is fixedly connected to the connecting plate 41, and the locking block 34 can contact the limiting block 42.

[0034] refer to Figure 2 and Figure 6 The lifting mechanism 2 includes a first support block 21 fixedly connected to the outer wall of the high neck block 11. A rotation groove is provided on the first support block 21. An L-shaped second support block 22 is rotatably connected in the rotation groove. A third support block 23 is provided at one end of the second support block 22 away from the first support block 21.

[0035] A lifting seat 26 is fixedly connected to the blind plate 12; a second threaded hole is provided on the third support block 23, and a lifting screw rod 24 is threadedly connected to the second threaded hole, and one end of the lifting screw rod 24 is fixedly connected to the lifting seat 26; an end of the third support block 23 away from the blind plate 12 is rotatably connected to an adjusting disk 25, and a third threaded hole is provided on the adjusting disk 25 that is threadedly connected to the lifting screw rod 24.

[0036] refer to Figure 6 and Figure 7 The second support block 22 located in the rotating groove is provided with a first groove 221, the second support block 22 is provided with a first cavity connected to the first groove 221, and the third support block 23 is provided with a twelfth through hole connected to the first cavity; the second support block 22 located in the rotating groove is provided with two second grooves 222, and the first groove 221 is located between the two second grooves 222; the first support block 21 is provided with a fifth through hole connected to the rotating groove.

[0037] refer to Figure 6 , Figure 7 and Figure 8 A locking mechanism 6 is provided on the first support block 21, and the locking mechanism 6 includes a first unlocking block 61 slidably connected in the fifth through hole, and a first spring 62 is connected to the first unlocking block 61. One end of the first spring 62 away from the first unlocking block 61 is connected to the first support block 21. When the first spring 62 is in a normal state, there is a certain distance between the first unlocking block 61 and the rotating groove.

[0038] A first locking block 63 is slidably connected in the first groove 221 of the second support block 22, and a second spring 64 is arranged in the first groove 221. One end of the second spring 64 is connected to the first locking block 63 and the other end is connected to the second support block 22; when the second spring 64 is in a normal state, one end of the first locking block 63 can extend into the fifth through hole to contact the first unlocking block 61.

[0039] A second locking block 65 is slidably connected in the twelfth through hole of the third support block 23 . One end of the second locking block 65 can press against the lifting screw 24 in the second threaded hole and the other end is located in the first cavity of the second support block 22 .

[0040] refer to Figure 6 , Figure 7 and Figure 8 A second adjustment assembly 68 is provided on the second support block 22, and the second adjustment assembly 68 includes a first rack 684 fixedly connected to the first locking block 63, and a second rack 685 fixedly connected to the second locking block 65 located in the first cavity; an adjustment shaft 683 is rotatably connected in the first cavity, one end of the adjustment shaft 683 is keyed to a first gear 681 meshing with the first rack 684, and the end of the adjustment shaft 683 away from the first gear 681 is keyed to a second gear 682 meshing with the second rack 685.

[0041] A second limiting block 66 is slidably connected in each second groove 222 of the second supporting block 22, and a third spring 67 is arranged in the second groove 222. One end of the third spring 67 is connected to the second limiting block 66 and the other end is connected to the second supporting block 22. When the third spring 67 is in a normal state, one end of the second limiting block 66 can extend into the fifth through hole to contact the first unlocking block 61.

[0042] The implementation principle of the head cover of a filter in the embodiment of the present application is as follows: initially, the blind plate 12 blocks the inlet and outlet holes 111 on the high neck block 11, the locking block 34 is located in the locking groove 112 of the high neck block 11, and there is a certain distance between the first adjustment block 353 and the second adjustment block 355. The first locking block 63 is located in the fifth through hole and abuts against the first unlocking block 61.

[0043] When the sixth spring is in a normal state and the blocking block 32 no longer blocks the second through hole 313, the operator holds the toggle lever and extends the toggle lever into the second through hole 313, and then rotates the toggle lever, which drives the safety block 31 to rotate, so that the external thread 311 on the safety block 31 is separated from the first threaded hole 121, and the safety block 31 is separated from the blind plate 12; then the operator transfers the connecting block 51 and takes the first limiting block 53 out of the locking groove 112.

[0044] The operator then moves the toggle rod into the third through hole of the second adjustment block 355 and then rotates the toggle rod. The toggle rod drives the second adjustment block 355 to move. The second adjustment block 355 drives the third adjustment block 356 and the horseshoe block 354 to move. The horseshoe block 354 drives the first adjustment block 353 to move. The moving first adjustment block 353 and the third adjustment block 356 will drive the locking block 34 to move, so that the locking block 34 moves out of the locking groove 112, and the third adjustment block 356 abuts against the first cylindrical block 351, and the locking block 34 abuts against the limiting block 42.

[0045] Then the operator rotates the adjusting disk 25, and the adjusting disk 25 drives the lifting screw 24 to rotate. The lifting screw 24 will be displaced relative to the third support block 23, and the lifting screw 24 will drive the lifting seat 26 to move relative to the high neck block 11. The lifting seat 26 drives the blind plate 12 to move so that the blind plate 12 moves to the top of the high neck block 11 and no longer covers the inlet and outlet holes 111 on the high neck block 11.

[0046] Then the operator presses the first unlocking block 61 to move the first unlocking block 61 toward the second supporting block 22, and the first unlocking block 61 pushes the first locking block 63 to move, so that the first locking block 63 moves into the first groove 221; when the first locking block 63 moves, it will drive the first rack 684 to move, the first rack 684 drives the first gear 681 to rotate, the first gear 681 drives the adjusting shaft 683 to rotate, the adjusting shaft 683 drives the second gear 682 to rotate, the second gear 682 drives the second rack 685 to move, and the second rack 685 drives the second locking block 65 to move, so that the second locking block 65 is pressed against the lifting screw 24. Then the operator rotates the second support block 22, the second support block 22 drives the third support block 23 to rotate, the third support block 23 drives the lifting screw 24 to rotate, and the lifting seat 26 on the lifting screw 24 drives the blind plate 12 to move, so that the blind plate 12 is no longer located directly above the high neck block 11; when the first locking block 63 is no longer aligned with the fifth through hole, the operator first releases the first unlocking block 61; when the second limiting block 66 is aligned with the fifth through hole, the third spring 67 restores its elastic deformation, and the elastic force of the third spring 67 drives the second limiting block 66 to move, so that one end of the second limiting block 66 enters the fifth through hole.

[0047] The embodiment of the present application discloses a basket filter.

[0048] refer to Fig. 9A basket filter comprises a cylinder 71, a flow cavity 711 is formed in the cylinder 71, a mounting hole connected to the flow cavity 711 is opened at the upper end of the cylinder 71, a high neck block 11 is fixedly connected to the cylinder 71 and covers the mounting hole, and the inlet and outlet holes 111 on the high neck block 11 are connected to the mounting hole, the first threaded hole 121 on the blind plate 12, the eleventh through hole on the safety block 31 and the first through hole 312 on the first safety block 31 are all connected to the mounting hole; a first connecting pipe 72 and a second connecting pipe 73 are fixedly connected to the peripheral side wall of the cylinder 71, and the first connecting pipe 72 and the second connecting pipe 73 are both connected to the flow cavity 711; a sewage pipe 77 is fixedly connected to the lower end of the cylinder 71.

[0049] A positioning block 74 is provided in the flow cavity 711 of the cylinder 71, the positioning block 74 is fixedly connected to the cylinder 71, and a sixth through hole 741 is opened on the positioning block 74; a filter element 75 is placed on the positioning block 74, and one end of the filter element 75 away from the positioning block 74 abuts against the blind plate 12 that blocks the inlet and outlet holes 111.

[0050] refer to Fig. 9 , Fig.10 and Fig.11 The positioning block 74 is provided with an adjustment mechanism 8, which includes a rotating block 81 rotatably connected to the side of the positioning block 74 away from the high neck block 11, and a seventh through hole 811 is provided on the rotating block 81 and is connected to the sixth through hole 741. The rotating block 81 is provided with a medium outlet pipe 76, which includes a third connecting pipe 761 fixedly connected to the rotating block 81 and in an L shape, and a fourth connecting pipe 762 is slidably connected to the end of the third connecting pipe 761 away from the rotating block 81, and a sealing plug 763 is fixedly connected to the outer wall of the fourth connecting pipe 762 away from the end of the third connecting pipe 761, and the vertical section of the sealing plug 763 gradually increases toward the direction close to the third connecting pipe 761. The end of the fourth connecting pipe 762 away from the third connecting pipe 761 and the sealing plug 763 can enter the first connecting pipe 72 or the second connecting pipe 73, and the sealing plug 763 is pressed against the side wall of the first connecting pipe 72 or the second connecting block 51.

[0051] The sixth through hole 741 on the positioning block 74 , the seventh through hole 811 on the rotating block 81 , the third connecting pipe 761 and the fourth connecting pipe 762 form an outflow channel communicating with the first connecting pipe 72 or the second connecting pipe 73 .

[0052] refer to Fig.10 and Fig.12The cylinder 71 is provided with an adjustment assembly 9, which includes a first fixed block 91 fixedly connected to the positioning block 74, and the first fixed block 91 is provided with an eighth through hole along its vertical direction, and a first adjustment rod 92 is slidably connected in the eighth through hole, and the first adjustment rod 92 can rotate and slide in the eighth through hole; the first adjustment rod 92 is hinged to a second adjustment rod 93 at one end away from the high neck block 11; a slide groove is provided in the third connecting tube 761, and a third adjustment rod 94 is slidably connected in the slide groove, one end of the third adjustment rod 94 is hinged to the second adjustment rod 93 and the other end is fixedly connected to the fourth connecting tube 762. A fourth support block 95 is fixedly connected to the third connecting tube 761, and a thirteenth through hole is provided on the fourth support block 95 for the first adjustment rod 92 to pass through, and the first adjustment rod 92 can rotate in the thirteenth through hole; a fourth spring is connected to the first adjustment rod 92, and one end of the fourth spring is connected to the first adjustment rod 92 and the other end is connected to the fourth support block 95.

[0053] refer to Fig.10 and Fig.11 A fifth connecting pipe 96 is fixedly connected to the side wall of the cylinder 71, and a rotating hole is opened on the fifth connecting pipe 96. An adjusting shaft 97 is rotatably connected in the rotating hole. One end of the adjusting shaft 97 is in the flow chamber 711 and the other end is located outside the cylinder 71; a first bevel gear 98 is keyed to the adjusting shaft 97 located in the flow chamber 711, and a second bevel gear 99 meshing with the first bevel gear 98 is keyed to the rotating block 81; an adjusting plate 910 is fixedly connected to the adjusting shaft 97 located outside the cylinder 71, and an adjusting bolt 911 is provided on the adjusting plate 910, and the adjusting bolt 911 passes through the adjusting plate 910 and is threadedly connected to the fifth connecting block 51.

[0054] refer to Fig.10 , Fig.11 and Fig.12 A ninth through hole is opened along the axial direction of the adjusting shaft 97, a second unlocking block 915 is slidably connected inside the adjusting shaft 97, a first positioning hole and a second positioning hole are opened on the second unlocking block 915, and a plurality of third positioning holes are opened on the adjusting shaft 97 located outside the cylinder 71; a connecting rope is connected to the fifth connecting tube 96, a positioning pin 916 is connected to the connecting rope, one end of the positioning pin 916 is engaged with the third positioning hole and the other end is engaged with the first positioning hole or the second positioning hole on the adjusting shaft 97.

[0055] The positioning block 74 is fixedly connected with a second fixing block 912, and a tenth through hole is formed on the second fixing block 912. A third locking block 913 is slidably connected in the tenth through hole, and one end of the third locking block 913 away from the first adjusting rod 92 can extend into the ninth through hole; a fifth spring 914 is connected to the third locking block 913, and one end of the fifth spring 914 away from the third locking block 913 is connected to the second fixing block 912. The third locking block 913 is rectangular, and when one end of the third locking block 913 is located in the ninth through hole of the adjusting shaft 97, the adjusting shaft 97 cannot rotate, that is, the vertical section of the ninth through hole near the third locking block 913 is rectangular.

[0056] The implementation principle of a basket filter in an embodiment of the present application is as follows: taking the initial connection between the fourth connecting pipe 762 and the first connecting pipe 72 as an example, the end of the positioning pin 916 away from the third positioning block 74 is engaged with the first positioning hole on the second unlocking block 915, and one end of the third locking block 913 is located in the ninth through hole of the adjusting shaft 97.

[0057] The gas enters the flow cavity 711 of the cylinder 71 through the second connecting tube 73 , then enters the outflow channel through the filter element 75 , and finally moves out of the cylinder 71 through the second connecting tube 73 .

[0058] When the fourth connecting tube 762 needs to be connected to the second connecting tube 73, the operator first pushes the second unlocking block 915, and the second unlocking block 915 pushes the third locking block 913 to move, so that the third locking block 913 is no longer located in the ninth through hole of the adjustment shaft 97; then one end of the positioning pin 916 is engaged with the third positioning hole and the other end is engaged with the second positioning hole. At this time, the fourth spring and the fifth spring 914 are both in a deformed state.

[0059] When the second unlocking block 915 pushes the third locking block 913 to move, the third locking block 913 will push the first adjusting rod 92 to move, the first adjusting rod 92 drives the second adjusting rod 93 to move, the second adjusting rod 93 drives the third adjusting rod 94 to move, and the third adjusting rod 94 drives the fourth connecting tube 762 to move in the direction away from the first connecting tube 72; rotate the adjusting shaft 97, the adjusting shaft 97 drives the first bevel gear 98 to rotate, the first bevel gear 98 drives the second bevel gear 99 to rotate, the second bevel gear 99 drives the rotating block 81 to rotate, the rotating block 81 drives the third connecting tube 761 to rotate, the third connecting tube 761 drives the fourth connecting tube 762 to rotate, so that the end of the fourth connecting tube 762 away from the third connecting tube 761 rotates to the vicinity of the second connecting tube 73.

[0060] Then, the positioning pin 916 is no longer engaged with the second positioning hole and the third positioning hole, and the force of the fifth spring 914 to restore the elastic deformation drives the third locking block 913 to move toward the direction close to the adjustment shaft 97, so that the end of the third locking block 913 away from the first adjustment rod 92 enters the ninth through hole of the adjustment shaft 97, and the second unlocking block 915 returns to the original position, and then the positioning pin 916 is engaged with the third positioning hole and the first positioning hole. Finally, the adjusting bolt 911 passes through the adjustment plate 910 and is threadedly connected to the fifth connecting pipe 96.

[0061] When the third locking block 913 moves away from one end of the first adjusting rod 92 and enters into the ninth through hole, the fourth spring restores its elastic deformation. Under the action of the elastic force of the fourth spring, the first adjusting rod 92 will return to its original position. The second adjusting rod 93 on the first adjusting rod 92 drives the third adjusting rod 94 to move. The third adjusting rod 94 drives the fourth connecting tube 762 to move toward the direction close to the second connecting tube 73, so that the end of the fourth connecting tube 762 away from the third connecting tube 761 enters into the second connecting tube 73 and is connected to the second connecting tube 73, and the sealing plug 763 presses against the inner wall of the second connecting tube 73.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A filter head cover, comprising a high neck block (11), a blind plate (12) and a lifting mechanism (2), wherein the high neck block (11) is provided with an inlet and outlet hole (111), and the blind plate (12) is arranged on the high neck block (11) through the lifting mechanism (2) and is capable of blocking the inlet and outlet hole (111); It is characterized in that It also includes a safety locking mechanism (3), the safety locking mechanism (3) comprising a safety block (31), a blocking block (32), an elastic member (33), a locking block (34) and a first adjustment component (35). The safety block (31) is provided with an external thread (311), and the high neck block (11) is provided with a first threaded hole (121) threadedly connected to the external thread (311); The safety block (31) is provided with a first through hole (312), and the safety block (31) is provided with a second through hole (313) communicating with the first through hole (312); The blocking block (32) is slidably disposed in the first through hole (312) via the elastic member (33), and the blocking block (32) is capable of blocking the second through hole (313); The locking block (34) is wound around the blind plate (12) in an arc shape through the first adjustment assembly (35); the high neck block (11) is provided with a locking groove (112) which is in communication with the inlet and outlet hole (111) and is used to place the locking block (34); When the locking block (34) is located in the locking groove (112), the safety block (31) is located between the two ends of the locking block (34).

2. A filter head cover according to claim 1, characterized in that: The first adjustment assembly (35) comprises a first cylindrical block (351), a second cylindrical block (352), a first adjustment block (353), a horseshoe block (354), a second adjustment block (355) and a third adjustment block (356). The first cylindrical block (351) and the second cylindrical block (352) are both arranged on the blind plate (12), and a limited adjustment space is formed between the first cylindrical block (351) and the second cylindrical block (352); One end of the first adjustment block (353) is connected to the locking block (34) and the other end passes through the limited adjustment space; One end of the horseshoe block (354) is connected to one end of the first adjustment block (353) passing through the limited adjustment space; One end of the second adjustment block (355) is connected to an end of the horseshoe block (354) away from the first adjustment block (353), and a third through hole is formed on the second adjustment block (355); One end of the third adjustment block (356) is connected to the second adjustment block (355) and the other end is connected to the locking block (34); When the locking block (34) is located in the locking groove (112), the safety block (31) is located between the first adjustment block (353) and the second adjustment block (355) and corresponds to the opening of the horseshoe block (354).

3. A filter head cover according to claim 1, characterized in that: A limiting assembly (4) is arranged on the blind plate (12), the limiting assembly (4) comprising a connecting plate (41), a limiting block (42) and a mounting bolt (43), the connecting plate (41) being connected to the blind plate (12) via the mounting bolt (43), the limiting block (42) being arranged on the connecting plate (41), and the locking block (34) being capable of contacting the limiting block (42).

4. A filter head cover according to claim 1, characterized in that: The safety block (31) is provided with a limiting mechanism (5), the limiting mechanism (5) comprising a connecting block (51), a fourth adjustment block (52) and a first limiting block (53). The connection block (51) is provided with a fourth through hole for the safety block (31) to pass through; The first limiting block (53) is arranged on the connecting block (51); The fourth adjustment block (52) is arranged on the safety block (31) and contacts the connection block (51); When the locking block (34) is located in the locking groove (112), the first limiting block (53) is located in the locking groove (112), and two ends of the first limiting block (53) respectively abut against two ends of the locking block (34).

5. The filter head cover according to claim 1, characterized in that: The lifting mechanism (2) comprises a first support block (21), a second support block (22), a third support block (23), a lifting screw rod (24), an adjustment plate (25) and a lifting seat (26). The lifting seat (26) is arranged on the blind plate (12); The first support block (21) is arranged on the high neck block (11), the second support block (22) is rotatably arranged on the first support block (21), the third support block (23) is arranged on the second support block (22), and a second threaded hole is formed on the third support block (23); The lifting screw rod (24) is threadedly connected to the second threaded hole, and one end of the lifting screw rod (24) is connected to the lifting seat (26); The adjustment disk (25) is fixedly arranged on the third support block (23), and a third threaded hole threadedly connected to the lifting screw rod (24) is provided on the adjustment disk (25).

6. A filter head cover according to claim 5, characterized in that: The first support block (21) is provided with a locking mechanism (6), the locking mechanism (6) comprising a first unlocking block (61), a first spring (62), a first locking block (63), a second spring (64), a second locking block (65), a second limiting block (66), a third spring (67) and a second adjustment assembly (68). The first support block (21) is provided with a rotation groove, the second support block (22) is rotatably arranged in the rotation groove, and the first support block (21) is provided with a fifth through hole connected to the rotation groove; The first unlocking block (61) is slidably disposed in the fifth through hole, and the first spring (62) connects the first unlocking block (61) and the first supporting block (21); The second supporting block (22) is provided with a first groove (221), the first locking block (63) is slidably disposed in the first groove (221), and one end of the first locking block (63) can enter the fifth through hole; The second spring (64) connects the first locking block (63) and the second supporting block (22); The second locking block (65) is slidably disposed on the third supporting block (23) and is capable of pressing against the lifting screw rod (24); The second adjustment component (68) is arranged on the second support block (22), and the first locking block (63) and the second locking block (65) are both connectable to the second adjustment component (68); The second support block (22) is provided with a second groove (222), the second limiting block (66) is slidably arranged in the second groove (222), and one end of the second limiting block (66) can enter the fifth through hole; the third spring (67) connects the second limiting block (66) and the second support block (22).

7. A basket filter comprising a head cover of the filter as claimed in claim 1, characterized in that: It comprises a cylinder (71), a first connecting pipe (72), a second connecting pipe (73), a positioning block (74), a filter element (75), a medium outlet pipe (76) and a sewage discharge pipe (77). The cylinder (71) is formed with a flow cavity (711), and the first connecting pipe (72) and the second connecting pipe (73) are both arranged on the cylinder (71) and are both in communication with the flow cavity (711); The positioning block (74) is provided on the cylinder (71) and is located in the flow cavity (711), and the filter element (75) abuts against the positioning block (74); The cylinder (71) is provided with a mounting hole communicating with the flow chamber (711); the high neck block (11) is arranged on the cylinder (71) and covers the mounting hole; and the blind plate (12) abuts against the filter element (75); A sixth through hole (741) is provided on the positioning block (74), the medium outlet pipe (76) is arranged on the positioning block (74) and communicates with the sixth through hole (741), and the sixth through hole (741) on the positioning block (74) and the medium outlet pipe (76) form an outflow channel; The medium outlet pipe (76) is in communication with the first connecting pipe (72) or the second connecting pipe (73); The sewage discharge pipe (77) is arranged on the cylinder (71) and is in communication with the flow chamber (711).

8. A basket filter according to claim 7, characterized in that: The medium outlet pipe (76) comprises a third connecting pipe (761), a fourth connecting pipe (762) and a sealing plug (763); the fourth connecting pipe (762) is slidably arranged on the third connecting pipe (761), and the fourth connecting pipe (762) is in communication with the first connecting pipe (72) or the second connecting pipe (73); the sealing plug (763) is arranged on the fourth connecting pipe (762), and the sealing plug (763) can be pressed against the first connecting pipe (72) or the second connecting pipe (73); the sixth through hole (741) on the positioning block (74), the third connecting pipe (761) and the fourth connecting pipe (762) form the outflow channel; An adjusting mechanism (8) is arranged in the cylinder (71), and the adjusting mechanism (8) comprises a rotating block (81) and an adjusting assembly (9). The rotating block (81) is rotatably arranged on the positioning block (74); a seventh through hole (811) communicating with the sixth through hole (741) is provided on the rotating block (81); and the third connecting pipe (761) is arranged on the rotating block (81) and communicates with the seventh through hole (811); The adjusting component (9) is arranged on the cylinder (71), and the rotating block (81) and the fourth connecting pipe (762) are both connected to the adjusting component (9).

Images