Adjustable air valve connecting rod mechanism

Abstract

The utility model belongs to the field of air valve connecting rod mechanisms, and particularly relates to an adjustable air valve connecting rod mechanism which comprises an inverted L-shaped connecting lever, two U-shaped forks which are symmetrically distributed up and down are installed on the outer side of the inverted L-shaped connecting lever through bolts, a screw rod is installed in each U-shaped fork through a bearing, and the outer side of each screw rod is connected with an adjusting rod through threads. A locking mechanism is arranged in the U-shaped fork, the end, away from the screw, of the adjusting rod is connected with a connecting fork through threads, and a crank arm frame is installed in the connecting fork through a bolt. According to the utility model, the screw rod, the adjusting rod, the guide frame and other structures are additionally arranged on the U-shaped fork, so that the distance between the connecting fork and the U-shaped fork can be adjusted through the screw-thread fit between the screw rod and the adjusting rod in the on-site construction process, and the numerical value of the connecting rod mechanism can be finely adjusted according to the specific numerical value of an error; and the connecting rod mechanism can be mounted more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of air valve connecting rod mechanisms, in particular to an adjustable air valve connecting rod mechanism. Background Art

[0002] Air valves are mainly used in combustion furnaces, metal smelting furnaces and other waste gas treatment occasions in VOC waste gas treatment systems. In the treatment system, they mainly intercept the medium or adjust the flow of the medium in the smoke and air duct system. However, during the on-site construction process, the size of each air valve in the system is different, and the installation position will have errors during the production process. When the error is large, it will affect the installation of the connecting rod mechanism, resulting in the failure of the connecting rod to be assembled normally. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0003] The utility model aims to provide an adjustable air valve connecting rod mechanism, which solves the problem that the air valve shaft cannot be assembled normally when the error of the air valve shaft is large.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable air valve connecting rod mechanism, including a crank arm, the outer side of the crank arm is equipped with two U-shaped forks symmetrically distributed up and down by bolts, the inside of the U-shaped fork is equipped with a screw rod through a bearing, the outer side of the screw rod is connected with an adjusting rod by a thread, the inside of the U-shaped fork is provided with a locking mechanism, the end of the adjusting rod away from the screw rod is connected with a connecting fork by a thread, the inside of the connecting fork is equipped with a crank arm frame by bolts, the inside of the crank arm frame is equipped with a air valve stem by bolts, and the outside of the U-shaped fork is fixedly connected with a guide rod.

[0005] Preferably, a hexagonal ring is fixedly connected to the outer side of the screw rod, and the hexagonal ring is in contact with the U-shaped fork, so that the wrench can drive the screw rod to rotate through the hexagonal ring.

[0006] Preferably, a guide frame is fixedly connected to the outer side of the adjusting rod, and the guide frame is slidably connected to the guide rod, and the guide frame can guide the movement of the adjusting rod.

[0007] Preferably, a nut is threadedly connected to the outer side of the adjusting rod, and the nut is in contact with the connecting fork. The nut can be locked along with the threaded fit between the adjusting rod and the connecting fork.

[0008] Preferably, the locking mechanism includes a fixing plate, the interior of the U-shaped fork is fixedly connected to the fixing plate, the interior of the fixing plate is slidably connected to two symmetrically distributed sliding rods, a spring is provided on the outer side of the sliding rod, one end of the sliding rod close to the spring is fixedly connected to a button, the upper end of the screw rod is fixedly connected to a gear, and the end of the sliding rod away from the button is fixedly connected to a limiting frame, and the limiting frame can limit the screw rod by means of gears to prevent the screw rod from rotating on its own.

[0009] Preferably, the button is slidably connected to the U-shaped fork, the limiting frame is engaged with the gear, the limiting frame is in contact with the screw rod, and the button can drive the limiting frame to move via the sliding rod.

[0010] Preferably, one end of the spring is fixedly connected to the fixing plate, and the other end of the spring is fixedly connected to the button, and the spring can drive the button to automatically reset through elastic force.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model adds structures such as a screw rod, an adjusting rod and a guide frame to the U-shaped fork. During the on-site construction process, the distance between the connecting fork and the U-shaped fork can be adjusted through the threaded cooperation between the screw rod and the adjusting rod, so that the value of the connecting rod mechanism can be fine-tuned according to the specific value of the error, which can make the installation of the connecting rod mechanism more convenient.

[0013] 2. The utility model adds structures such as a limit frame, a slide rod and a button inside the U-shaped fork. After the screw is rotated, the limit frame can be driven by the elastic force of the spring to slide into the gear at the upper end of the screw to limit the screw, thereby making the connecting rod mechanism more stable after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;

[0015] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 ;

[0016] Figure 3 For the utility model Figure 1 A three-dimensional cross-sectional view of

[0017] Figure 4 For the utility model Figure 1 A front cross-sectional enlarged view of the U-shaped fork;

[0018] Figure 5 For the utility model Figure 3 A magnified view of the structure of part A;

[0019] Figure 6 For the utility model Figure 5 A magnified three-dimensional image of the screw.

[0020] In the figure: 1. crank arm; 2. U-shaped fork; 3. screw; 4. adjusting rod; 5. locking mechanism; 6. connecting fork; 7. crank arm frame; 8. air valve stem; 9. hexagonal ring; 10. guide frame; 11. guide rod; 12. nut; 51. fixing plate; 52. sliding rod; 53. limit frame; 54. gear; 55. button; 56. spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , an adjustable air valve connecting rod mechanism, including a crank arm 1, two U-shaped forks 2 symmetrically distributed up and down are installed on the outer side of the crank arm 1 by bolts, a screw rod 3 is installed inside the U-shaped fork 2 through a bearing, an adjusting rod 4 is connected to the outer side of the screw 3 by thread, a locking mechanism 5 is arranged inside the U-shaped fork 2, an end of the adjusting rod 4 away from the screw 3 is connected to a connecting fork 6 by thread, a crank arm frame 7 is installed inside the connecting fork 6 by bolts, a damper stem 8 is installed inside the crank arm frame 7 by bolts, and a guide rod 11 is fixedly connected to the outer side of the U-shaped fork 2.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 The outer side of the screw rod 3 is fixedly connected with a hexagonal ring 9, which contacts the U-shaped fork 2. The wrench can use the hexagonal ring 9 to drive the screw rod 3 to rotate. The outer side of the adjusting rod 4 is fixedly connected with a guide frame 10, which is slidably connected to the guide rod 11. The guide frame 10 can guide the movement of the adjusting rod 4. The outer side of the adjusting rod 4 is threadedly connected with a nut 12, which contacts the connecting fork 6. The nut 12 can be locked with the threaded cooperation between the adjusting rod 4 and the connecting fork 6.

[0024] See also Figure 1 , Figure 4The locking mechanism 5 includes a fixed plate 51, a fixed plate 51 is fixedly connected to the inside of the U-shaped fork 2, and two symmetrically distributed sliding rods 52 are slidably connected to the inside of the fixed plate 51. A spring 56 is arranged on the outside of the sliding rod 52, and a button 55 is fixedly connected to one end of the sliding rod 52 close to the spring 56. A gear 54 is fixedly connected to the upper end of the screw 3, and a limit frame 53 is fixedly connected to the end of the sliding rod 52 away from the button 55. The limit frame 53 can limit the screw 3 through the gear 54 to prevent the screw 3 from rotating. The button 55 is slidably connected to the U-shaped fork 2, the limit frame 53 is engaged with the gear 54, the limit frame 53 contacts the screw 3, and the button 55 can drive the limit frame 53 to move through the sliding rod 52. One end of the spring 56 is fixedly connected to the fixed plate 51, and the other end of the spring 56 is fixedly connected to the button 55. The spring 56 can drive the button 55 to automatically reset through elastic force.

[0025] The specific implementation process of the utility model is as follows: when in use, the button 55 is pressed, and the button 55 drives the limit frame 53 to move through the slide rod 52 and compresses the spring 56. When the limit frame 53 is disengaged from the gear 54, the limit on the screw rod 3 can be released, and then the hexagonal ring 9 can be driven to rotate by the wrench, and the hexagonal ring 9 can drive the screw rod 3 to rotate. During the rotation process, the screw rod 3 can drive the adjusting rod 4 and the connecting fork 6 to move through the thread cooperation between the adjusting rod 4, so as to fine-tune the installation range. After the adjustment is completed, stop rotating the hexagonal ring 9, and then release the button 55, and the spring 56 is reset. The spring 56 can drive the limit frame 53 to slide into the inside of the gear 54 through the elastic force, so as to complete the limit on the screw rod 3, thereby making the adjustment of the connecting rod mechanism more stable.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable damper linkage mechanism, comprising a crank arm (1), characterized in that: The outer side of the crank arm (1) is provided with two U-shaped forks (2) symmetrically distributed up and down by bolts, the inside of the U-shaped fork (2) is provided with a screw rod (3) by bearings, the outer side of the screw rod (3) is connected with an adjusting rod (4) by threads, a locking mechanism (5) is arranged inside the U-shaped fork (2), the end of the adjusting rod (4) away from the screw rod (3) is connected with a connecting fork (6) by threads, the inside of the connecting fork (6) is provided with a crank arm frame (7) by bolts, the inside of the crank arm frame (7) is provided with a damper stem (8) by bolts, and the outer side of the U-shaped fork (2) is fixedly connected with a guide rod (11).

2. The adjustable air valve connecting rod mechanism according to claim 1, characterized in that: A hexagonal ring (9) is fixedly connected to the outer side of the screw rod (3), and the hexagonal ring (9) is in contact with the U-shaped fork (2).

3. The adjustable air valve connecting rod mechanism according to claim 1, characterized in that: A guide frame (10) is fixedly connected to the outer side of the adjustment rod (4), and the guide frame (10) is slidably connected to the guide rod (11).

4. The adjustable air valve connecting rod mechanism according to claim 1, characterized in that: The outer side of the adjusting rod (4) is connected to a nut (12) via a thread, and the nut (12) is in contact with the connecting fork (6).

5. The adjustable air valve connecting rod mechanism according to claim 1, characterized in that: The locking mechanism (5) comprises a fixing plate (51), the interior of the U-shaped fork (2) is fixedly connected to the fixing plate (51), the interior of the fixing plate (51) is slidably connected to two symmetrically distributed sliding rods (52), the outer sides of the sliding rods (52) are provided with springs (56), one end of the sliding rod (52) close to the spring (56) is fixedly connected to a button (55), the upper end of the screw rod (3) is fixedly connected to a gear (54), and one end of the sliding rod (52) away from the button (55) is fixedly connected to a limiting frame (53).

6. The adjustable air valve connecting rod mechanism according to claim 5, characterized in that: The button (55) is slidably connected to the U-shaped fork (2), the limiting frame (53) is engaged with the gear (54), and the limiting frame (53) is in contact with the screw rod (3).

7. The adjustable air valve connecting rod mechanism according to claim 5, characterized in that: One end of the spring (56) is fixedly connected to the fixing plate (51), and the other end of the spring (56) is fixedly connected to the button (55).

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