Elastic sheet sealing structure of manual split multi-blade regulating valve

Abstract

The utility model relates to the technical field of regulating valves, and provides an elastic sheet sealing structure of a manual split multi-blade regulating valve, which comprises a valve body, a connecting shaft is rotatably connected to one side of a worm and gear box, a chuck assembly is arranged on the outer side wall of the connecting shaft, and a mounting plate is fixedly connected to the outer side wall of the valve body. A clamping piece used for clamping the chuck assembly is arranged on the mounting plate, and one end of the connecting shaft penetrates through the mounting plate and is provided with a rotating disc assembly used for manually driving the connecting shaft to rotate. According to the elastic piece sealing structure of the manual split multi-blade regulating valve, the stability of the valve blades in the opening state or the closing state can be improved, so that the situation that the valve blades shake back and forth after opening and closing regulation is completed, and regulation of the regulating valve on the air volume is affected is prevented; the problem that in the related technology, due to the fact that an adjusting valve is prone to vibration in the ventilation process, valve blades shake back and forth after opening and closing adjustment is completed, and adjustment of the adjusting valve on the air volume is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, and in particular to a spring-type sealing structure of a manual split multi-leaf regulating valve. Background Art

[0002] The air volume regulating valve, also known as the damper, is an indispensable central air-conditioning terminal accessory in the ventilation, air conditioning and air purification projects of industrial plants and civil buildings. It is generally used in air-conditioning and ventilation system pipes to adjust the air volume of the branch pipes. It can also be used for the mixed adjustment of fresh air and return air. It is one of the key equipment to achieve control of ventilation modes in various environments.

[0003] After searching, the existing patent (Announcement No.: CN210484637U) discloses a split multi-leaf regulating valve, including valve blades, a rotating shaft, a valve body and a valve shaft gear, the top of the valve body is installed with a box body through a mounting plate, and a rotating handle is horizontally passed through the interior of the box body, a worm is arranged at the central position of the rotating handle, six rotating shafts are evenly arranged inside the valve body, and valve blades are installed on the rotating shafts, one of the rotating shafts passes through the box body longitudinally, and a worm wheel matching the worm is installed on the rotating shaft inside the box body, a gear box is fixed at the central position of the inner side of the valve body, the rotating shafts all pass through the gear box, and valve shaft gears are installed on the rotating shafts inside the gear box, and bearings are evenly installed on the rotating shafts. The utility model is installed with a valve body and a side plate, and mounting holes are evenly arranged on the side plate, which is convenient for the fixed installation and fixation of the device.

[0004] However, in the implementation of relevant technologies, the following problems were found: in the above, when the rotary handle is rotated, one of the rotating shafts rotates through the relationship between the worm wheel and the worm, and then the valve shaft gear connected to the rotating shaft also rotates, and the rotation process transmits the movement of other valve shaft gears, thereby realizing the opening and closing of the valve blades. However, during the ventilation process, the entire valve body will produce a certain vibration, and the worm and the rotating handle will also produce a certain vibration. The worm may rotate back and forth during the vibration process, and there is no limiting structure for the worm and the rotating handle, which will cause the valve blade to easily swing back and forth after the adjustment is completed, which will affect the accurate adjustment of the air volume by the regulating valve. Utility Model Content

[0005] The utility model proposes a spring seal structure for a manual split multi-leaf regulating valve, which solves the problem in the related art that during ventilation, the regulating valve is prone to vibration, causing the valve blades to shake back and forth after the adjustment is completed, thereby affecting the regulation of the air volume by the regulating valve.

[0006] The technical solution of the utility model is as follows: a spring-type sealing structure of a manual split multi-leaf regulating valve, comprising a valve body, a worm gear box is arranged on the outer side wall of the valve body, a connecting shaft is rotatably connected to one side of the worm gear box, a chuck assembly is arranged on the outer side wall of the connecting shaft, a mounting plate is fixedly connected to the outer side wall of the valve body, a clamping member for clamping the chuck assembly is arranged on the mounting plate, one end of the connecting shaft passes through the mounting plate and is provided with a turntable assembly for manually driving the connecting shaft to rotate.

[0007] Preferably, the chuck assembly includes a first disc, which is fixedly mounted on the outer wall of the connecting shaft, and a plurality of slots for clamping the clamping member are uniformly spaced in a circular shape on the side wall of the first disc, and an annular slide is fixedly connected to the side wall of the first disc, and a plurality of the slots are located in the annular slide.

[0008] Preferably, the clamping member includes a sleeve, the sleeve is fixedly connected to the mounting plate, a sleeve rod is inserted in the sleeve, the lower end of the sleeve rod extends to directly below the sleeve and is fixedly connected to a connecting block, and the connecting block is slidably arranged in the annular slide, the lower end of the connecting block is fixedly connected to a clamping block, and the clamping block is clamped in one of the clamping grooves, a spring is sleeved on the sleeve rod, and the upper end of the spring is fixedly connected to the lower end of the sleeve, and the lower end of the spring is fixedly connected to the upper end of the connecting block.

[0009] Preferably, the connecting block is a circular structure, the clamping groove is a circular structure, the diameter of the connecting block is smaller than the inner ring width of the annular slideway, and the diameter of the connecting block is larger than the diameter of the clamping groove.

[0010] Preferably, the card block is a hemispherical structure, and the diameter of the card block is smaller than the diameter of the card slot.

[0011] Preferably, the upper end of the sleeve rod extends into the sleeve and is fixedly connected to a limiting block, and the limiting block is slidably disposed in the sleeve.

[0012] Preferably, the turntable assembly includes a second disc, the second disc is fixedly connected to one end of the connecting shaft, and a fastening mechanism for fastening the second disc is provided on a side wall of the second disc.

[0013] Preferably, the fastening mechanism comprises a support plate, the support plate is fixedly connected to one side of the mounting plate, a tightening bolt is threadedly connected to the inner wall of the support plate, and the lower end of the tightening bolt extends to the side wall of the second disc.

[0014] The working principle and beneficial effects of the utility model are:

[0015] In the utility model, by manually rotating the turntable assembly through the connecting shaft to adjust the valve blade to an open state or a closed state, the chuck assembly is clamped by the clamping piece to limit the connecting shaft. The connecting shaft will limit the open state or the closed state of the valve blade at this time, which can improve the stability of the valve blade in the open state or the closed state, thereby preventing the valve blade from rocking back and forth after the adjustment of the opening and closing is completed and affecting the adjustment of the air volume by the regulating valve. This solves the problem in the related technology that during the ventilation process, the regulating valve is prone to vibration, which causes the valve blade to rock back and forth after the adjustment of the opening and closing is completed, thereby affecting the adjustment of the air volume by the regulating valve.

[0016] In the utility model, in the process of driving the first disc to rotate through the connecting shaft, the card block will be inserted into a plurality of card slots in sequence. Since the plurality of card slots are distributed in a circle with equal intervals, the rotation angle of the first disc corresponding to each card block being inserted into a card slot is consistent, and the rotation angle of the first disc each time is also corresponding to the rotation angle of the valve blade, so that the opening angle of the valve blade can be conveniently adjusted and limited, and the air volume can be conveniently adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a structural schematic diagram of a spring-type sealing structure of a manual split multi-leaf regulating valve proposed by the utility model;

[0019] Figure 2 A schematic structural diagram of a rotary disc assembly of a spring-type sealing structure of a manual split multi-leaf regulating valve proposed by the utility model;

[0020] Figure 3 A structural schematic diagram of a chuck assembly of a spring-type sealing structure of a manual split multi-leaf regulating valve proposed by the utility model;

[0021] Figure 4 A schematic diagram of the structure of a clamping member of a spring-type sealing structure of a manual split multi-leaf regulating valve proposed by the utility model;

[0022] Figure 5 The utility model discloses a structural cross-sectional view of a clamping member and a chuck assembly of a spring-type sealing structure of a manual split multi-leaf regulating valve when the clamping member and the chuck assembly are used in coordination.

[0023] In the figure: 1. valve body; 2. worm gear box; 3. connecting shaft; 4. chuck assembly; 41. first disc; 42. clamping groove; 43. annular slide; 5. mounting plate; 6. clamping piece; 61. sleeve; 62. sleeve rod; 63. connecting block; 64. clamping block; 65. spring; 66. limit block; 7. turntable assembly; 71. second disc; 72. support plate; 73. tightening bolt; 8. rotating shaft; 9. valve blade; 10. limit baffle; 11. gear box; 12. spring. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1 and Figure 2 The utility model provides a technical solution: a spring-type sealing structure of a manual split multi-leaf regulating valve, comprising a valve body 1, a worm gear box 2 is arranged on the outer side wall of the valve body 1, a connecting shaft 3 is rotatably connected to one side of the worm gear box 2, a chuck assembly 4 is arranged on the outer side wall of the connecting shaft 3, a mounting plate 5 is fixedly connected to the outer side wall of the valve body 1, a clamping piece 6 for clamping the chuck assembly 4 is arranged on the mounting plate 5, one end of the connecting shaft 3 passes through the mounting plate 5 and is provided with a turntable assembly 7 for manually driving the connecting shaft 3 to rotate.

[0026] When in use, by manually rotating the turntable assembly 7, the turntable assembly 7 drives the connecting shaft 3 to rotate, the connecting shaft 3 drives the worm in the worm gear box 2 to rotate, the worm drives the worm gear matched with it to rotate, the worm gear drives the rotating shaft 8 connected to the worm gear in the valve body 1 to rotate, the rotating shaft 8 drives the valve shaft gear connected to the rotating shaft 8 set in the gear box 11 in the valve body 1 to rotate, which will make several valve shaft gears in the gear box 11 that are vertically meshed rotate together, and several valve shaft gears will respectively drive several rotating shafts 8 to rotate together, thereby realizing the opening and closing of several valve blades 9 on the rotating shafts 8; when the valve blade 9 is adjusted to the open state or the closed state by manually rotating the turntable assembly 7, the clamping member 6 is used to clamp the disk assembly 4, which will The chuck assembly 4 is limited, the chuck assembly 4 will limit the connecting shaft 3, and the connecting shaft 3 will limit the worm in the worm gear box 2, thereby limiting the open state or closed state of the valve blade 9 at this time, which can improve the stability of the valve blade 9 in the open state or the closed state, and prevent the valve blade 9 from rocking back and forth after the adjustment of the opening and closing is completed; wherein, when the valve blade 9 is adjusted to the closed state, when the valve blade 9 is rotated to the position where the valve body 1 is completely closed, one end of the valve blade 9 will squeeze the spring piece 12 on the inner wall of the valve body 1, and the spring piece 12 will be under the action of the elastic rebound force. The gap between the valve blade 9 and the inner wall of the valve body 1 can be completely filled, thereby enhancing the sealing of the valve blade 9 when it is fully closed.

[0027] Therefore, by manually rotating the turntable assembly 7 through the connecting shaft 3 to adjust the valve blade 9 to an open state or a closed state, the clamping member 6 is used to clamp the clamping assembly 4 to limit the connecting shaft 3. The connecting shaft 3 will limit the open state or the closed state of the valve blade 9 at this time, which can improve the stability of the valve blade 9 in the open state or the closed state, thereby preventing the valve blade 9 from swinging back and forth after the adjustment of the opening and closing is completed and affecting the adjustment of the air volume by the regulating valve. This solves the problem in the related technology that during the ventilation process, the regulating valve is prone to vibration, causing the valve blade 9 to swing back and forth after the adjustment of the opening and closing is completed, thereby affecting the adjustment of the air volume by the regulating valve.

[0028] See also Figure 2 , Figure 3 and Figure 5 The chuck assembly 4 includes a first disc 41, which is fixedly sleeved on the outer side wall of the connecting shaft 3. A plurality of slots 42 for engaging the clamping member 6 are arranged in a circular pattern and at equal intervals on the side wall of the first disc 41. An annular slide 43 is fixedly connected to the side wall of the first disc 41, and a plurality of slots 42 are located in the annular slide 43. When the connecting shaft 3 rotates, the first disc 41 will be driven to rotate, and the first disc 41 will drive a plurality of slots 42 to rotate. When each slot 42 rotates to the clamping member 6, the clamping member 6 will be clamped into the slot 42, thereby limiting the position of the first disc 41.

[0029] See also Figure 2 , Figure 4 and Figure 5 The clamp 6 includes a sleeve 61, which is fixedly connected to the mounting plate 5. A sleeve rod 62 is inserted into the sleeve 61. The lower end of the sleeve rod 62 extends to the bottom of the sleeve 61 and is fixedly connected to a connecting block 63. The connecting block 63 is slidably arranged in the annular slideway 43. The upper end of the sleeve rod 62 extends into the sleeve 61 and is fixedly connected to a limiting block 66. The limiting block 66 is slidably arranged in the sleeve 61. The connecting block 63 is a circular structure. The card slot 42 is a circular structure. The connecting block 63 is a circular structure. The diameter of block 63 is smaller than the inner ring width of the annular slide 43, and the diameter of connecting block 63 is larger than the diameter of slot 42. A block 64 is fixedly connected to the lower end of connecting block 63, and block 64 is clamped in one of the slots 42. Block 64 is a hemispherical structure, and the diameter of block 64 is smaller than the diameter of slot 42. A spring 65 is sleeved on sleeve rod 62, and the upper end of spring 65 is fixedly connected to the lower end of sleeve 61, and the lower end of spring 65 is fixedly connected to the upper end of connecting block 63.

[0030] When the connecting shaft 3 rotates, it will drive the first disk 41 to rotate, and the first disk 41 will drive several slots 42 to rotate. When each slot 42 rotates to the block 64, the block 64 will automatically snap into the slot 42 under the action of the spring 65, thereby limiting the first disk 41 at this time. When the first disk 41 continues to rotate, the block 64 will be squeezed out of the slot 42 and slide along the side wall of the first disk 41 until the block 64 is snapped into the next slot 42 again. Therefore, in the process of driving the first disc 41 to rotate through the connecting shaft 3, the block 64 will be inserted into the several slots 42 in turn. Since the several slots 42 are distributed in a circle with equal intervals, the rotation angle of the first disc 41 corresponding to each insertion of the block 64 into a slot 42 is consistent, and the rotation angle of the first disc 41 each time is also corresponding to the rotation angle of the valve blade 9, so that the opening angle of the valve blade 9 can be conveniently adjusted and limited, and the air volume can be conveniently adjusted.

[0031] See also Figure 1 and Figure 2 The turntable assembly 7 includes a second disk 71, which is fixedly connected to one end of the connecting shaft 3. A fastening mechanism for fastening the second disk 71 is provided on the side wall of the second disk 71. The fastening mechanism includes a support plate 72, which is fixedly connected to one side of the mounting plate 5. A tightening bolt 73 is threadedly connected to the inner wall of the support plate 72, and the lower end of the tightening bolt 73 extends to the side wall of the second disk 71.

[0032] After loosening the tightening bolt 73, manually turning the second disc 71 will drive the connecting shaft 3 to rotate. When the connecting shaft 3 is rotated to adjust the valve blade 9 to the desired opening angle, tightening the tightening bolt 73 again can secure the second disc 71. The second disc 71 secures the connecting shaft 3, thereby securing the valve blade 9 at this time, thereby improving the stability of the valve blade 9 after the adjustment is completed and preventing the block 64 from popping out of the slot 42 due to vibration.

[0033] The working principle and use process of the utility model are as follows: when in use, first, the tightening bolt 73 is loosened, and the second disc 71 is manually rotated, so that the second disc 71 drives the connecting shaft 3 to rotate, and the connecting shaft 3 drives the worm in the worm gear box 2 to rotate, and the worm drives the worm gear matched with it to rotate, and the worm gear drives the rotating shaft 8 connected to the worm gear in the valve body 1 to rotate, and the rotating shaft 8 drives the valve shaft gear connected to the rotating shaft 8 provided in the gear box 11 in the valve body 1 to rotate, which will make the several valve shaft gears in the gear box 11 that are respectively meshed vertically rotate together, and the several valve shaft gears will respectively drive the several rotating shafts 8 to rotate together, so that The valve blades 9 on the rotating shafts 8 are opened and closed; when the valve blades 9 are adjusted to rotate by manually rotating the second disc 71, the connecting shaft 3 will drive the first disc 41 to rotate, and the first disc 41 will drive the several slots 42 to rotate. When each slot 42 rotates to the block 64, the block 64 will automatically snap into the slot 42 under the action of the spring 65, thereby limiting the first disc 41 at this time. When the first disc 41 continues to rotate, the block 64 will be squeezed out of the slot 42 and slide along the side wall of the first disc 41 until the block 64 is snapped into the next slot 42 again, and the connecting shaft 3 is connected to the connecting shaft 3. In the process of driving the first disc 41 to rotate, the block 64 will be inserted into the plurality of slots 42 in sequence. Since the plurality of slots 42 are distributed in a circular shape with equal spacing, the rotation angle of the first disc 41 corresponding to each insertion of the block 64 into a slot 42 is consistent, and the rotation angle of the first disc 41 each time is also corresponding to the rotation angle of the valve blade 9, so that the opening angle of the valve blade 9 can be conveniently adjusted and limited, and the air volume can be conveniently adjusted; the first disc 41 can be limited by the block 64 when the plurality of slots 42 are connected, and the first disc 41 can be moved to the connecting shaft 3. Limiting, the connecting shaft 3 will limit the worm in the worm gear box 2, thereby limiting the opening angle of the valve blade 9 at this time, which can improve the stability of the opening angle of the valve blade 9 at this time, and prevent the valve blade 9 from shaking back and forth after the adjustment is completed; wherein, when the valve blade 9 is adjusted to a closed state, when the valve blade 9 rotates to a position that completely closes the valve body 1, one end of the valve blade 9 will squeeze the spring sheet 12 on the inner wall of the valve body 1, and the spring sheet 12 will be under the action of elastic rebound force. The gap between the valve blade 9 and the inner wall of the valve body 1 can be completely filled, thereby enhancing the sealing of the valve blade 9 when it is fully closed.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spring-type sealing structure for a manual split multi-leaf regulating valve, comprising a valve body (1), a worm gear box (2) being arranged on the outer wall of the valve body (1), and a connecting shaft (3) being rotatably connected to one side of the worm gear box (2), characterized in that: A chuck assembly (4) is arranged on the outer wall of the connecting shaft (3); a mounting plate (5) is fixedly connected to the outer wall of the valve body (1); a clamping member (6) for clamping the chuck assembly (4) is arranged on the mounting plate (5); one end of the connecting shaft (3) passes through the mounting plate (5) and is provided with a rotating disk assembly (7) for manually driving the connecting shaft (3) to rotate.

2. The spring-type sealing structure of the manual split multi-leaf regulating valve according to claim 1 is characterized in that: The chuck assembly (4) comprises a first disc (41), the first disc (41) being fixedly sleeved on the outer wall of the connecting shaft (3), a plurality of slots (42) for clamping the clamping member (6) being arranged at equal intervals in a circular pattern on the side wall of the first disc (41), an annular slideway (43) being fixedly connected to the side wall of the first disc (41), and a plurality of the slots (42) being located in the annular slideway (43).

3. The spring-type sealing structure of the manual split multi-leaf regulating valve according to claim 2 is characterized in that: The clamping member (6) comprises a sleeve (61), the sleeve (61) being fixedly connected to the mounting plate (5), a sleeve rod (62) being inserted into the sleeve (61), the lower end of the sleeve rod (62) extending to the lower part of the sleeve (61) and being fixedly connected to a connecting block (63), and the connecting block (63) being slidably arranged in the annular slideway (43), the lower end of the connecting block (63) being fixedly connected to a clamping block (64), and the clamping block (64) being clamped in one of the clamping grooves (42), a spring (65) being sleeved on the sleeve rod (62), the upper end of the spring (65) being fixedly connected to the lower end of the sleeve (61), and the lower end of the spring (65) being fixedly connected to the upper end of the connecting block (63).

4. The spring-type sealing structure of the manual split multi-leaf regulating valve according to claim 3 is characterized in that: The connecting block (63) is a circular structure, the clamping groove (42) is a circular structure, the diameter of the connecting block (63) is smaller than the inner circle width of the annular slideway (43), and the diameter of the connecting block (63) is larger than the diameter of the clamping groove (42).

5. The spring-type sealing structure of the manual split multi-leaf regulating valve according to claim 3 is characterized in that: The clamping block (64) is a hemispherical structure, and the diameter of the clamping block (64) is smaller than the diameter of the clamping slot (42).

6. The spring-type sealing structure of the manual split multi-leaf regulating valve according to claim 3 is characterized in that: The upper end of the sleeve rod (62) extends into the sleeve tube (61) and is fixedly connected to a limit block (66), and the limit block (66) is slidably disposed in the sleeve tube (61).

7. The spring-type sealing structure of the manual split multi-leaf regulating valve according to claim 1 is characterized in that: The rotating disk assembly (7) comprises a second disk (71), the second disk (71) being fixedly connected to one end of the connecting shaft (3), and a fastening mechanism for fastening the second disk (71) being provided on a side wall of the second disk (71).

8. The spring-type sealing structure of the manual split multi-leaf regulating valve according to claim 7 is characterized in that: The fastening mechanism comprises a support plate (72), the support plate (72) being fixedly connected to one side of the mounting plate (5), a tightening bolt (73) being threadedly connected to the inner wall of the support plate (72), and a lower end of the tightening bolt (73) extending to the side wall of the second disc (71).

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