A light flue damper convenient to install and use

Abstract

The present application relates to the field of gate, especially to a light flue gate convenient to install and use, which comprises a fixing frame, a connecting frame, sliding blocks and a control switch mechanism, etc., the control switch mechanism is arranged on the fixing frame, the connecting frame is connected to the control switch mechanism, and the left and right sides of the inner side wall of the connecting frame are symmetrically provided with the sliding blocks in a sliding mode. By rotating the screw rod, the clamping block can loosen and clamp the gate body, achieving the purpose of quickly disassembling and replacing the gate body. Under the action of the sliding block, when the gate body moves downward to the flue position, it can automatically move outward, effectively sealing the flue, avoiding direct contact between the gate body and the flue to generate friction, reducing friction loss, thereby prolonging the service life of the gate body.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gate, especially to a light flue gate convenient to install and use. BACKGROUND

[0002] The flue gate is a device for controlling the flow of gas in the flue, commonly used in industrial production, especially in thermal power plants, cement plants, metallurgical industry and boiler systems, the design of the flue gate usually considers high temperature resistance, corrosion resistance and wear resistance, to ensure long-term stable operation in harsh environment, which can be controlled by manual switch, also can be automatically controlled by electric or pneumatic actuator.

[0003] The existing flue gate is usually installed on the support by screws or other fasteners, the specific installation process is as follows: first, place the gate on the support, make sure it is correctly aligned, second, use wrench to cooperate with screws or other fasteners to fix the gate on the support, then the installation of the flue gate is completed. But this installation method needs to use more screws, not only consumes a lot of screws, but also the installation process is complicated, and it is not convenient to quickly and timely disassemble and repair the flue gate, and the existing flue gate is generally directly contacted with the pipeline on both sides to block the opening of the pipeline, so when the flue gate moves up and down to open and close, the flue gate will rub with the pipeline, which is easy to cause the surface of the flue gate to be worn, thereby shortening the service life of the flue gate.

[0004] In view of the above, there is an urgent need for a light flue gate convenient to install and use to solve the above problems. SUMMARY

[0005] In order to overcome the shortcomings of the existing flue gate, which is very troublesome to install by a large number of screws, and is easy to be worn when directly contacted with the pipeline to move up and down to open and close, thereby shortening the service life of the flue gate, the purpose of the present application is to provide a light flue gate convenient to install and use.

[0006] The technical scheme of the present application is:

[0007] The utility model provides a light flue damper convenient to install and use, which comprises a fixing frame, a connecting frame, sliding blocks, first springs, a damper body, a control switch mechanism, a screw rod, clamping blocks, second springs and a sliding frame, the control switch mechanism is arranged on the fixing frame, the connecting frame is connected with the control switch mechanism, the left and right sides of the inner side wall of the connecting frame are symmetrically provided with sliding blocks in a sliding mode, three first springs are symmetrically connected between the sliding blocks and the connecting frame, screw rods are symmetrically arranged on the outer sides of the four sliding blocks in a screw thread mode, clamping blocks are symmetrically arranged on the side of the four sliding blocks close to each other in a sliding mode, the screw rods abut against the adjacent clamping blocks, the side of the four clamping blocks on the same side close to the screw rod is provided with an inclined surface, two second springs are connected between each of the eight clamping blocks and the adjacent sliding block, the damper body is slidingly connected between the four clamping blocks on the same side, the sliding frame is slidingly arranged in the middle of the connecting frame, the sliding frame is located between the two damper bodies, and the lower part of the sliding frame is provided with an inclined surface on the front and back sides, and the damper body and the sliding block are in contact with the inclined surface of the lower part of the sliding frame.

[0008] Further, the control switch mechanism comprises a motor, a first sleeve shaft, a winding wheel, a belt pulley, a flat belt, a pull rope, a pull block and a protective sleeve, the motor is installed on the top of the fixing frame, the first sleeve shaft is slidingly arranged on the output shaft of the motor, the winding wheels are symmetrically arranged on the upper part of the fixing frame in a rotating mode, the winding wheel on the left side is slidingly connected with the first sleeve shaft, the winding wheels are arranged in a left-right arrangement, the belt pulleys are connected with the winding wheels, the flat belt is wound between the two belt pulleys, the pull rope is wound on the winding wheel, the lower end of the pull rope penetrates through the upper part of the connecting frame, the lower end of the pull rope is connected with the pull block, the pull block is slidingly connected with the connecting frame, the protective sleeve is symmetrically connected between the top of the connecting frame and the fixing frame, and the pull rope is located in the protective sleeve.

[0009] Further, the utility model further comprises a sealing mechanism, the sealing mechanism comprises a sealing ring, a jacking rod and a third spring, the sealing ring is slidingly arranged in the middle of the damper body, the jacking rods are symmetrically slidingly arranged on the front side of the sliding frame, the jacking rods are also symmetrically slidingly arranged on the rear part of the sliding frame, the two jacking rods on the same side are arranged in an up-down arrangement, the sealing rings are located on the front and back sides of the sliding frame respectively, the third spring is connected between the rear side of the jacking rod on the front part and the sliding frame, and the third spring is also connected between the front side of the jacking rod on the rear part and the sliding frame.

[0010] Further, the utility model further comprises a reset mechanism, the reset mechanism comprises a pressing frame, a pressing block and a fourth spring, the pressing frames are slidingly arranged on the upper parts of the front and back sides of the connecting frame, the pressing frames are arranged in a left-right staggered arrangement, the pressing frames block the outer sides of the two sealing rings respectively, the pressing blocks are symmetrically connected on the side close to each other of the two pressing frames, the corresponding pressing blocks on the front and back sides are located on the inner sides of the adjacent pull blocks respectively, the lower part of the pressing block is provided with an inclined surface, and the fourth spring is connected between the left and right parts of the pressing frame and the adjacent connecting frame.

[0011] Further, the handle is connected to the rear side of the rotating knob.

[0012] Further, the first shaft is coaxial with the left winding wheel.

[0013] Further, the handle is connected to the rear side of the rotating knob.

[0014] Further, the outer wall of the front part of the screw rod is provided with a plurality of protrusions. Advantages

[0015] 1. By rotating the screw rod, the clamping block can loosen and clamp the shutter body, achieving the purpose of quickly disassembling and replacing the shutter body. Under the action of the sliding block, when the shutter body moves downward to the flue position, it can automatically move outward to effectively close the flue, avoid direct contact between the shutter body and the flue, reduce friction loss, and prolong the service life of the shutter body.

[0016] 2. The sealing ring moves outward to block the gap between the flue and the shutter body, achieving the purpose of sealing and avoiding gas leakage.

[0017] 3. The second shaft is pulled forward and sleeved on the right winding wheel, and then the rotating knob is rotated, which can drive the right winding wheel to rotate through the second shaft, and drive the left winding wheel to rotate synchronously through the belt pulley and flat belt, so as to be used in emergency in case of motor damage. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the present application.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the present application.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the present application.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the present application.

[0024] Figure 7Fig. 1 is a perspective view of the screw, the clamping block and the second spring of the present application.

[0025] Figure 8 Fig. 2 is a perspective view of the first part of the sealing mechanism of the present application.

[0026] Figure 9 Fig. 3 is a perspective view of the second part of the sealing mechanism of the present application.

[0027] Figure 10 Fig. 4 is a perspective view of the first part of the reset mechanism of the present application.

[0028] Figure 11 Fig. 5 is a perspective view of the second part of the reset mechanism of the present application.

[0029] Figure 12 Fig. 6 is a perspective view of the handle and the second shaft of the present application.

[0030] BRIEF DESCRIPTION OF THE DRAWINGS 1: fixed frame, 2: motor, 3: first shaft, 4: winding wheel, 41: pulley, 42: flat belt, 5: pull rope, 7: connecting frame, 8: pull block, 9: protective sleeve, 10: sliding block, 11: first spring, 12: shutter body, 13: screw, 14: clamping block, 15: second spring, 16: sliding frame, 17: sealing mechanism, 171: sealing ring, 172: jacking rod, 173: third spring, 18: reset mechanism, 181: extrusion frame, 182: extrusion block, 183: fourth spring, 191: handle, 192: second shaft. DETAILED DESCRIPTION

[0031] The technical solutions of the present application are further described below in combination with the drawings.

[0032] Example 1: A light flue shutter convenient to install and use, as shown in Figures 1-8As shown, it comprises a fixed frame 1, a connecting frame 7, a sliding block 10, a first spring 11, a shutter body 12, a control switch mechanism, a screw rod 13, a clamping block 14, a second spring 15 and a sliding frame 16, the control switch mechanism is arranged on the fixed frame 1, the connecting frame 7 is connected to the control switch mechanism, the left and right parts of the inner side wall of the connecting frame 7 are symmetrically provided with sliding blocks 10, the sliding blocks 10 and the connecting frame 7 are symmetrically connected with three first springs 11 respectively, the outer sides of the four sliding blocks 10 are symmetrically provided with screw rods 13 in a threaded manner, a plurality of protrusions are arranged on the outer wall of the front part of the screw rod 13, the side of the four sliding blocks 10 close to each other is symmetrically provided with clamping blocks 14 in a sliding manner, the screw rod 13 abuts against the adjacent clamping blocks 14, the side of the four clamping blocks 14 close to the screw rod 13 is provided with a slope, two second springs 15 are connected between each adjacent clamping block 14 and sliding block 10, the shutter body 12 is slidingly connected between the four clamping blocks 14 on the same side, the up-down movement of the shutter body 12 can control the opening and closing of the flue, the sliding frame 16 is slidingly arranged in the middle of the connecting frame 7, the sliding frame 16 is located between the two shutter bodies 12, and the lower part of the sliding frame 16 is provided with a slope on the front and back sides, the shutter body 12 and the sliding block 10 are in contact with the slope of the lower part of the sliding frame 16, the sliding frame 16 is used to move the shutter body 12 outward to block the flue to close it, avoiding the direct contact between the shutter body 12 and the flue during the up-down movement to generate friction and cause wear.

[0033] As shown in Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 12 , the control switch mechanism comprises a motor 2, a first sleeve shaft 3, a winding wheel 4, a belt pulley 41, a flat belt 42, a pulling rope 5, a pulling block 8 and a protective sleeve 9, the motor 2 is detachably mounted on the top of the fixed frame 1, the first sleeve shaft 3 is slidingly arranged on the output shaft of the motor 2 through a shaft coupling, the winding wheels 4 are symmetrically arranged on the upper part of the fixed frame 1 in a rotating manner, the left winding wheel 4 is slidingly connected with the first sleeve shaft 3, the winding wheels 4 are arranged in a left-right arrangement, the first sleeve shaft 3 and the left winding wheel 4 are coaxial, the belt pulleys 41 are connected to the winding wheels 4, the flat belts 42 are wound between the two belt pulleys 41, the pulling ropes 5 are wound on the winding wheels 4, the lower end of the pulling rope 5 penetrates through the upper part of the connecting frame 7, the loosening and tightening of the pulling rope 5 is used to control the up-down movement of the shutter body 12 to open and close the flue, the pulling block 8 is connected to the lower end of the pulling rope 5, the pulling block 8 is slidingly connected with the connecting frame 7, the protective sleeve 9 is symmetrically connected between the top of the connecting frame 7 and the fixed frame 1, the pulling rope 5 is located inside the protective sleeve 9, and the protective sleeve 9 is used to protect the pulling rope 5.

[0034] When the device needs to be installed at the designated flue, the flue shutter body is located between the two flues, and the motor 2 is started when the flue needs to be closed. The output shaft of the motor 2 rotates to drive the first sleeve shaft 3 to rotate, and the first sleeve shaft 3 rotates to drive the left winding wheel 4 and the belt pulley 41 to rotate. The rotation of the left belt pulley 41 drives the flat belt 42 to rotate, which in turn drives the right belt pulley 41 and the winding wheel 4 to rotate, so that the two winding wheels 4 rotate synchronously and the pull rope 5 is released at the same time, driving the pull block 8 and the connecting frame 7 to move downward. The connecting frame 7 moves downward to drive the flue shutter body 12 and the sliding frame 16 to move downward together, and the protective sleeve 9 is elongated to protect the pull rope 5. When the sliding frame 16 moves downward and contacts the bottom of the fixed frame 1, the pull rope 5 will continue to be released downward. Under the action of the gravity of the connecting frame 7 and the flue shutter body 12, the connecting frame 7 and the flue shutter body 12 will continue to move downward, and the sliding block 10 will also move downward. Since the lower part of the sliding frame 16 is inclined, the sliding block 10 and the flue shutter body 12 will move outward to block the two flues respectively, and the first spring 11 will be compressed, so that the two flues are blocked by the flue shutter body 12, achieving the purpose of cutting off the gas flow between the two flues, realizing the closing of the flue, and the closing motor 2 can be turned off. When the flue needs to be opened for gas flow, the motor 2 is started again and controlled to reverse, and the first spring 11 returns to its original state, driving the sliding block 10 and the flue shutter body 12 to move inward and upward to reset, so that they no longer block the flow of the two flues. Then the closing motor 2 is turned off, so that the opening and closing control of the flue can be realized. When the flue shutter body 12 needs to be disassembled, repaired or replaced, first rotate the screw rod 13 to make the screw rod 13 move outward to loosen the clamping block 14, and the second spring 15 is compressed to loosen the flue shutter body 12. Then the flue shutter body 12 can be quickly removed and repaired or replaced. After the repaired or replaced flue shutter body 12 is placed back in its original position, the screw rod 13 is reversed to make the screw rod 13 move inward and press the adjacent clamping block 14 to move inward to clamp the flue shutter body 12, and the second spring 15 returns to its original state, thereby quickly completing the disassembly, repair and replacement of the flue shutter body 12, which is convenient to operate.

[0035] Example 2: Based on example 1, refer to Figure 1 、 Figure 8 and Figure 9As shown, the sealing mechanism 17 comprises a sealing ring 171, a top rod 172 and a third spring 173. The sealing ring 171 is slidingly arranged in the middle of the shutter body 12 and is circular. The top rod 172 is symmetrically slidingly arranged on the front side of the sliding frame 16 and on the rear side of the sliding frame 16. The two top rods 172 on the same side are arranged in an upper and lower arrangement. The sealing ring 171 is respectively located on the front and rear sides of the sliding frame 16. When the top rod 172 moves outward, it can drive the sealing ring 171 to move outward, so as to block the gap between the flue and the shutter body 12, thereby achieving the purpose of sealing. The third spring 173 is connected between the rear side of the top rod 172 on the front and the sliding frame 16. The third spring 183 is also connected between the front side of the top rod 172 on the rear and the sliding frame 16.

[0036] As shown in Figure 1 , Figure 10 and Figure 11 As shown, the reset mechanism 18 comprises a pressing frame 181, a pressing block 182 and a fourth spring 183. The pressing frame 181 is slidingly arranged on the upper part of the front and rear sides of the connecting frame 7 and is arranged in a left and right staggered arrangement. The pressing frame 181 blocks the outer side of the two sealing rings 171. When the pressing frame 181 moves inward and contacts the sealing ring 171, it can drive the sealing ring 171 to move inward and reset. The pressing block 182 is symmetrically connected on the side close to the other pressing frame 181. The corresponding pressing block 182 on the front and rear is respectively located on the inner side of the adjacent pull block 8. The lower part of the pressing block 182 is in a beveled state. The fourth spring 183 is connected between the left and right parts of the pressing frame 181 and the adjacent connecting frame 7.

[0037] At the beginning, the third spring 173 and the fourth spring 183 are in compression state, when the pull block 8 and the shutter body 12 move downward to close the flue, the pull block 8 no longer abuts against the extrusion block 182, the fourth spring 183 resets, drives the extrusion frame 181 and the extrusion block 182 to move outward to loosen the sealing ring 171, and the downward movement of the shutter body 12 drives the sealing ring 171 to move downward, so that the two sealing rings 171 are in contact with the adjacent top rod 172 respectively, the third spring 173 is stretched, drives the top rod 172 to move outward, so as to push the sealing ring 171 outward to block the gap between the flue and the shutter body 12, achieves the purpose of sealing, avoids gas leakage, when the pull block 8 moves upward and contacts the extrusion block 182, the pull block 8 applies inward pressure to the extrusion block 182 to move inward, drives the extrusion frame 181 to move inward, the fourth spring 183 returns to the original state, the extrusion frame 181 moves inward and contacts the sealing ring 171 to drive the sealing ring 171 to move inward and reset, and can extrude the top rod 172 to move inward and reset, the third spring 173 returns to the original state, finally the sealing ring 171 is pulled upward and reset by the pull rope 5, the resetting process is completed.

[0038] Referring to Figure 12 As shown, it also includes a handle 191 and a second sleeve shaft 192, the handle 191 is rotatably arranged on the upper part of the fixed frame 1, the handle 191 is located right behind the right winding wheel 4, a handle is welded on the rear side of the handle 191, the second sleeve shaft 192 is slidably arranged on the front part of the handle 191, the second sleeve shaft 192 corresponds to the rotating shaft on the right winding wheel 4, the handle 191 can be manually rotated by using the second sleeve shaft 192 to control the opening and closing of the shutter body 12 for emergency.

[0039] When the motor 2 cannot normally operate due to failure, manual emergency measures can be taken, first, the first sleeve shaft 3 is safely pulled out backward from the left winding wheel 4 to ensure that it is completely disconnected with the winding wheel 4, at this time, the second sleeve shaft 192 can be pushed forward to be accurately sleeved on the right winding wheel 4, then the handle 191 is rotated, the right winding wheel 4 can be driven to rotate by using the second sleeve shaft 192, and the left winding wheel 4 can be synchronously rotated by the belt pulley 41 and the flat belt 42, which is used for emergency use in the case of damage of the motor 2.

[0040] Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present application.

Claims

1. A lightweight flue damper that is easy to install and use, comprising a fixing frame (1), characterized in that, It also includes a connecting frame (7), a sliding block (10), a first spring (11), a gate body (12), a control switch mechanism, a screw (13), a locking block (14), a second spring (15), and a sliding frame (16). The control switch mechanism is provided on the fixed frame (1), and the connecting frame (7) is connected to the control switch mechanism. The sliding blocks (10) are symmetrically slidably arranged on the left and right sides of the inner sidewall of the connecting frame (7). Three first springs (11) are symmetrically connected to each of the sliding blocks (10) and the connecting frame (7). The screws (13) are symmetrically threaded on the outer sides of the four sliding blocks (10). The sides of the four sliding blocks (10) that are close to each other are symmetrically slidably arranged. The locking block (14) is provided, the screw (13) abuts against the adjacent locking block (14), the four locking blocks (14) on the same side are inclined on the side near the screw (13), and two second springs (15) are connected between each of the eight locking blocks (14) and the adjacent sliding block (10). The gate body (12) is slidably locked between the four locking blocks (14) on the same side. The sliding frame (16) is slidably provided in the middle of the connecting frame (7). The sliding frame (16) is located between the two gate bodies (12), and the front and rear sides of the lower part of the sliding frame (16) are inclined. The gate body (12) and the sliding block (10) are in contact with the inclined surface of the lower part of the sliding frame (16). The control switch mechanism includes a pull block (8), which is slidably connected to the connecting frame (7); It also includes a sealing mechanism (17), which includes a sealing ring (171), a push rod (172) and a third spring (173). The sealing ring (171) is slidably disposed in the middle of the gate body (12). The push rod (172) is symmetrically slidably disposed in the front of the sliding frame (16) and also symmetrically slidably disposed in the rear of the sliding frame (16). The two push rods (172) on the same side are arranged vertically. The sealing ring (171) is located on the front and rear sides of the sliding frame (16). The third spring (173) is connected between the rear side of the front push rod (172) and the sliding frame (16), and also connected between the front side of the rear push rod (172) and the sliding frame (16). It also includes a reset mechanism (18), which includes a pressing frame (181), a pressing block (182) and a fourth spring (183). The pressing frame (181) is slidably disposed on the upper part of the front and rear sides of the connecting frame (7). The pressing frame (181) is arranged in a staggered manner. The pressing frame (181) blocks the outer side of the two sealing rings (171) respectively. The pressing block is symmetrically connected to the side of the two pressing frames that are close to each other. The pressing blocks (182) corresponding to the front and rear are located on the inner side of the adjacent pull block (8). The lower part of the pressing block (182) is set with an inclined surface. The fourth spring (183) is connected between the left and right parts of the pressing frame (181) and the adjacent connecting frame (7).

2. The lightweight flue damper that is easy to install and use according to claim 1, characterized in that, The control switch mechanism also includes a motor (2), a first shaft (3), a winding wheel (4), a pulley (41), a flat belt (42), a pull rope (5), and a protective sleeve (9). The motor (2) is mounted on the top of the fixed frame (1). The first shaft (3) is slidably mounted on the output shaft of the motor (2). The winding wheel (4) is symmetrically rotated on the upper part of the fixed frame (1). The winding wheel (4) on the left side is slidably connected to the first shaft (3). The pulley (41) The winding wheel (4) is connected to the winding wheel (4), which is arranged in a left-right arrangement. The flat belt (42) is wound between the two belt pulleys (41). The pull rope (5) is wound on the winding wheel (4). The lower end of the pull rope (5) passes through the upper part of the connecting frame (7). The pull block (8) is connected to the lower end of the pull rope (5). The protective sleeve (9) is symmetrically connected between the top of the connecting frame (7) and the fixing frame (1). The pull rope (5) is located inside the protective sleeve (9).

3. The lightweight flue damper that is easy to install and use according to claim 2, characterized in that, It also includes a throttle (191) and a second shaft (192). The throttle (191) is rotatably mounted on the upper part of the fixed frame (1). The throttle (191) is located directly behind the winding wheel (4) on the right side. The second shaft (192) is slidably mounted in front of the throttle (191). The second shaft (192) corresponds to the shaft on the winding wheel (4) on the right side.

4. A lightweight flue damper that is easy to install and use according to claim 3, characterized in that, The first shaft (3) and the winding wheel (4) on the left are coaxial.

5. A lightweight flue damper that is easy to install and use according to claim 4, characterized in that, A handle is connected to the rear side of the throttle (191).

6. A lightweight flue damper that is easy to install and use according to claim 5, characterized in that, The outer wall of the front part of the screw (13) is provided with multiple protrusions.

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