Chimney damper capable of adjusting damping force

Abstract

The utility model belongs to the technical field of chimneys, and particularly relates to a chimney damper capable of adjusting damping force, which comprises a fixing frame, an elastic connecting mechanism is fixedly mounted in the middle of the fixing frame, a hoisting plate is fixedly mounted at the bottom end of the elastic connecting mechanism, and a telescopic mechanism is fixedly mounted at the bottom end of the hoisting plate. A balancing weight is fixedly installed at the bottom end of the telescopic mechanism, the telescopic mechanism is symmetrically arranged hoisting ropes, the hoisting ropes are fixedly connected with the hoisting plate and the balancing weight respectively, and the hoisting plate and the balancing weight are fixedly connected through a telescopic sleeve. According to the chimney damper capable of adjusting the damping force, the elastic connecting mechanism is connected with the hoisting plate, the elastic connecting mechanism can be used for swinging, the balancing weight is connected with the hoisting plate through the telescopic mechanism, and the gravity center of the device can be changed by changing the length of the telescopic mechanism; and therefore, the swing range of the balancing weight can be changed, and the damping force can be adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of chimneys, and in particular relates to a chimney damper with adjustable damping strength. Background Art

[0002] A chimney damper is a device installed on the chimney structure to reduce the vibration and swing of the chimney under the action of wind load, earthquake, etc., so as to protect the structural stability and safety of the chimney.

[0003] For example, Chinese patent publication number CN208108144U discloses a chimney anti-seismic damper for preventing wind-induced vibration resonance in a self-supporting chimney. The damper is mounted at the top of the chimney and includes a housing for connection to the chimney, damping fluid disposed within the housing, and an annular weight suspended in the damping fluid, with the damping fluid level being lower than the height of the housing. The damper is mounted at the top of the chimney. When the damper is shaken by wind, the annular weight is affected by the damping fluid and has a delayed swing.

[0004] In this way, the annular weight and the damping fluid will exert a counterforce on the chimney, reducing the chimney's swing amplitude and its consistency with the wind vibration frequency. This can effectively prevent the chimney's swing frequency from synchronously resonating with the wind vibration frequency, preventing damage to the chimney, improving safety and the chimney's service life, and also increasing the chimney's height-to-diameter ratio. However, the damping provided by this device is not adjustable and cannot adapt to different damping requirements. Utility Model Content

[0005] The purpose of the utility model is to provide a chimney damper with adjustable damping force in order to achieve the effect of adjusting the damping of the damper in order to solve the above-mentioned technical problems.

[0006] In view of this, the utility model provides a chimney damper with adjustable damping force, including a fixed frame, an elastic connecting mechanism fixedly installed in the middle of the fixed frame, a lifting plate fixedly installed at the bottom end of the elastic connecting mechanism, a telescopic mechanism fixedly installed at the bottom end of the lifting plate, a counterweight block fixedly installed at the bottom end of the telescopic mechanism, and the telescopic mechanism is a lifting hydraulic jack.

[0007] Preferably, the top and bottom ends of the fixing frame are threadedly connected with bolts, and the bolts pass through the fixing frame and are threadedly connected to the existing chimney.

[0008] Preferably, a shield is fixedly mounted on the top of the fixing frame, and the shield is sleeved on the top of the chimney and fixedly connected to the chimney from the outside by bolts.

[0009] Preferably, a connecting ring is fixedly installed on one side of the fixing frame and the hanging plate close to each other, and the number of the connecting rings is multiple, and the multiple connecting rings are distributed in a ring array.

[0010] Preferably, the elastic connection mechanism is an elastic rope, and both ends of the elastic rope are fixedly connected to the connecting ring of the fixing frame and the connecting ring of the hanging plate respectively.

[0011] Preferably, the elastic connection mechanism is a tension spring, and both ends of the tension spring are fixedly connected to the connecting ring of the fixing frame and the connecting ring of the hanging plate respectively.

[0012] Preferably, the telescopic mechanism is a symmetrically arranged lifting rope, which is fixedly connected to the lifting plate and the counterweight block respectively, and the lifting plate and the counterweight block are fixedly connected by a telescopic sleeve, and a support frame is fixedly installed on the outer surface of the fixed part of the fixed telescopic sleeve, and a double-headed telescopic hydraulic cylinder is fixedly installed in the middle of the support frame, and a sleeve half ring is fixedly installed on the free end of the double-headed telescopic hydraulic cylinder, and the lifting rope is sleeved on the outer surface of the sleeve half ring.

[0013] Preferably, the counterweight block includes an upper plate, a connecting block is inserted under the upper plate, a plurality of connecting blocks are plugged into each other, and the upper plate and the connecting blocks are connected by a lifting rod.

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

[0015] 1. This chimney damper with adjustable damping force is connected to the hanging plate through an elastic connection mechanism, which can be used to swing. By connecting the counterweight block to the hanging plate through a telescopic mechanism, the center of gravity of the device can be changed by changing the length of the telescopic mechanism, and then the swing range of the counterweight block can be changed, thereby adjusting the magnitude of the damping force.

[0016] 2. This chimney damper with adjustable damping force is composed of a counterweight block consisting of multiple connecting blocks spliced together, and the multiple connecting blocks are connected together by a lifting rod. By assembling different numbers of connecting blocks, the damping effect can be adjusted. At the same time, the counterweight block of a specified mass can be decomposed into multiple blocks and spliced together for easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection of the fixing ring in the present utility model;

[0019] Figure 3 This is a schematic diagram of the connection of the counterweight block in the present utility model;

[0020] Figure 4 This is a schematic diagram of the hydraulic jack connection in the present utility model;

[0021] Figure 5 This is a schematic diagram of the connection of the traction rope in the utility model.

[0022] The marks in the figure are:

[0023] 1. Fixed frame; 2. Elastic connecting mechanism; 3. Lifting plate; 4. Telescopic mechanism; 5. Counterweight; 101. Bolt; 102. Protective cover; 201. Elastic rope; 202. Tension spring; 203. Connecting ring; 401. Hydraulic jack; 402. Lifting rope; 403. Telescopic sleeve; 404. Support frame; 405. Double-headed telescopic cylinder; 406. Connecting half ring; 501. Upper plate; 502. Connecting block; 503. Lifting rod. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0025] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," and "horizontal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0026] An embodiment of the present application discloses a chimney damper with adjustable damping force, including a fixing frame 1, an elastic connecting mechanism 2 fixedly installed in the middle of the fixing frame 1, a lifting plate 3 fixedly installed at the bottom end of the elastic connecting mechanism 2, a telescopic mechanism 4 fixedly installed at the bottom end of the lifting plate 3, a counterweight block 5 fixedly installed at the bottom end of the telescopic mechanism 4, and the telescopic mechanism 4 is a hoisting hydraulic jack 401.

[0027] Based on the above structure,

[0028] In one embodiment, the top and bottom ends of the fixing frame 1 are threadedly connected with bolts 101, which pass through the fixing frame 1 and are threadedly connected to the existing chimney. Specifically, the device can be fixed to the chimney through two sets of upper and lower bolts 101.

[0029] In this embodiment, connection via bolts 101 can provide sufficient support to fix the device.

[0030] Based on the above structure,

[0031] In one embodiment, a shield 102 is fixedly mounted on the top of the mounting frame 1. The shield 102 is sleeved over the top of the chimney and fixedly connected to the chimney from the outside via bolts 101. Specifically, the shield 102 is sleeved over the top of the chimney from the top and then connected via bolts 101, allowing the entire weight of the device to be directly applied to the chimney.

[0032] In this embodiment, such an arrangement can prevent the bolts 101 from being damaged due to excessive weight of the device.

[0033] Based on the above structure,

[0034] In one embodiment, a connecting ring 203 is fixedly installed on one side of the fixing frame 1 and the hanging plate 3 close to each other. The number of the connecting rings 203 is multiple and the connecting rings 203 are distributed in a circular array. Specifically, the connecting ring 203 can be used to connect the elastic connecting mechanism 2.

[0035] In this embodiment, by providing a plurality of connecting rings 203 , a plurality of elastic connecting mechanisms 2 can be adapted thereto, thereby enabling the plurality of elastic connecting mechanisms 2 to share the gravity of the device.

[0036] Based on the above structure,

[0037] In one embodiment, the elastic connection mechanism 2 is an elastic rope 201, and the two ends of the elastic rope 201 are respectively fixedly connected to the connecting ring 203 of the fixing frame 1 and the connecting ring 203 of the hanging plate 3. Specifically, the elastic rope 201 can swing with the fixing frame 1 and has a large swing range.

[0038] Based on the above structure,

[0039] In one embodiment, the elastic connection mechanism 2 is a tension spring 202, and the two ends of the tension spring 202 are respectively fixedly connected to the connecting ring 203 of the fixing frame 1 and the connecting ring 203 of the hanging plate 3. Specifically, the tension spring 202 can be reset by its own elasticity after swinging.

[0040] Based on the above structure,

[0041] In one embodiment, the telescopic mechanism 4 is a symmetrically arranged lifting rope 402, which is fixedly connected to the lifting plate 3 and the counterweight 5, respectively. The lifting plate 3 and the counterweight 5 are fixedly connected via a telescopic sleeve 403. A support frame 404 is fixedly mounted on the outer surface of the fixed portion of the telescopic sleeve 403. A double-headed telescopic hydraulic cylinder 405 is fixedly mounted in the middle of the support frame 404. A sleeve half ring 406 is fixedly mounted on the free end of the double-headed telescopic hydraulic cylinder 405. The lifting rope 402 is sleeved on the outer surface of the sleeve half ring 406. Specifically, when the double-headed telescopic hydraulic cylinder 405 is simultaneously expanded to both sides, the sleeve half ring 406 can be used to tension the lifting rope 402.

[0042] In this embodiment, the counterweight 5 can be brought closer to the hanging plate 3, thereby changing the center of gravity of the device, shortening the swing range, and changing the magnitude of the damping force.

[0043] Based on the above structure,

[0044] In one embodiment, the counterweight 5 includes an upper plate 501, with a connecting block 502 inserted below the upper plate 501. Multiple connecting blocks 502 are plugged into each other, and the upper plate 501 and the connecting blocks 502 are connected by a hanging rod 503. Specifically, by plugging in different numbers of connecting blocks 502, the weight of the counterweight 5 can be changed, thereby changing the magnitude of the damping force. At the same time, the counterweight 5 of a specified mass can be decomposed into multiple pieces and spliced together for easy installation.

[0045] In this embodiment, by providing the plug-in connection blocks 502 , the damping magnitude can be changed by increasing the number of the connection blocks 502 .

[0046] When in use, the chimney damper with adjustable damping force of this embodiment is connected to the hanging plate 3 through an elastic connecting mechanism 2, so that the elastic connecting mechanism 2 can be used for swinging. By connecting the counterweight block 5 to the hanging plate 3 through the telescopic mechanism 4, the center of gravity of the device can be changed by changing the length of the telescopic mechanism 4, and then the swing range of the counterweight block 5 can be changed, so that the magnitude of the damping force can be adjusted.

[0047] By setting the counterweight block 5 to be composed of multiple connecting blocks 502 spliced together, and connecting the multiple connecting blocks 502 together through a lifting rod 503, the effect of adjusting the damping can be achieved by assembling different numbers of connecting blocks 502. At the same time, the counterweight block 5 of a specified mass can be decomposed into multiple pieces and spliced together for easy installation.

[0048] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A chimney damper with adjustable damping force, comprising a fixing frame (1), characterized in that: An elastic connection mechanism (2) is fixedly installed in the middle of the fixed frame (1), a hanging plate (3) is fixedly installed at the bottom end of the elastic connection mechanism (2), a telescopic mechanism (4) is fixedly installed at the bottom end of the hanging plate (3), and a counterweight (5) is fixedly installed at the bottom end of the telescopic mechanism (4); The telescopic mechanism (4) is a hoisted hydraulic jack (401).

2. The chimney damper with adjustable damping force according to claim 1, characterized in that: The top and bottom ends of the fixing frame (1) are threadedly connected with bolts (101), and the bolts (101) pass through the fixing frame (1) and are threadedly connected to the existing chimney.

3. The chimney damper with adjustable damping force according to claim 1, characterized in that: A shield (102) is fixedly mounted on the top of the fixing frame (1), and the shield (102) is sleeved on the top of the chimney and fixedly connected to the chimney from the outside via bolts (101).

4. A chimney damper with adjustable damping force according to any one of claims 1 to 3, characterized in that: A connecting ring (203) is fixedly installed on one side of the fixing frame (1) and the hanging plate (3) close to each other. There are multiple connecting rings (203), and the multiple connecting rings (203) are distributed in a ring array.

5. The chimney damper with adjustable damping force according to claim 4, characterized in that: The elastic connection mechanism (2) is an elastic rope (201), and the two ends of the elastic rope (201) are respectively fixedly connected to the connecting ring (203) of the fixing frame (1) and the connecting ring (203) of the hanging plate (3).

6. The chimney damper with adjustable damping force according to claim 4, characterized in that: The elastic connection mechanism (2) is a tension spring (202), and the two ends of the tension spring (202) are respectively fixedly connected to the connection ring (203) of the fixing frame (1) and the connection ring (203) of the hanging plate (3).

7. A chimney damper with adjustable damping force according to claim 5 or 6, characterized in that: The telescopic mechanism (4) is a symmetrically arranged hoisting rope (402), which is fixedly connected to the hoisting plate (3) and the counterweight (5) respectively. The hoisting plate (3) and the counterweight (5) are fixedly connected via a telescopic sleeve (403). A support frame (404) is fixedly mounted on the outer surface of the fixed portion of the fixed telescopic sleeve (403). A double-headed telescopic hydraulic cylinder (405) is fixedly mounted in the middle of the support frame (404). A sleeve half ring (406) is fixedly mounted on the free end of the double-headed telescopic hydraulic cylinder (405). The hoisting rope (402) is sleeved on the outer surface of the sleeve half ring (406).

8. The chimney damper with adjustable damping force according to claim 7, characterized in that: The counterweight block (5) comprises an upper plate (501), a connecting block (502) is plugged into the lower portion of the upper plate (501), a plurality of connecting blocks (502) are plugged into each other, and the upper plate (501) and the connecting blocks (502) are connected via a hoisting rod (503).

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