Air volume adjusting valve for central air conditioner

Abstract

The utility model relates to the technical field of air volume adjusting valves, and discloses an air volume adjusting valve for a central air conditioner, which comprises a valve body, a flange edge is fixedly mounted outside the valve body, an adjusting mechanism is arranged outside the flange edge, and an extrusion mechanism is arranged outside the valve body. The positioning work of the adjusting blade is facilitated through the arranged positioning block, the preliminary limiting of the extension plate is facilitated through the arranged insertion block, the bolt and the positioning block are in threaded installation by rotating the bolt, the stability of the adjusting blade is conveniently ensured, the bolt is far away from the positioning block through repeated operation, and the sliding plate extrudes the spring by pulling the pull ring; and by rotating a first rotating handle, a worm is rotated, and a rotating shaft is rotated under the cooperation of a worm gear, so that the angle of the adjusting blade is conveniently adjusted, the air volume is conveniently controlled, the operation is convenient, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of air volume regulating valves, in particular to an air volume regulating valve for a central air conditioner. 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 mixing and adjustment of fresh air and return air.

[0003] According to the description of the air volume regulating valve for air conditioners disclosed on the patent website (authorization announcement number: CN 212672419 U), "The utility model relates to an air volume regulating valve for air conditioners, which includes a valve body, the valve body includes a first body, a second body and a fixed frame, a rotating shaft is provided in the valve body, an adjusting blade is provided on the rotating shaft, a gear is sleeved on the rotating shaft, the gear is located on the side of the fixed frame away from the valve body, a mounting frame is provided on the surface of the fixed frame away from the valve body, the mounting frame includes a connecting plate 1 arranged on the fixed frame and a mounting plate arranged on the connecting plate 1, the connecting plate 1 is parallel to the length direction of the rotating shaft, a locking rod is penetrated on the mounting plate, the locking rod is perpendicular to the mounting plate, a baffle is provided at one end of the locking rod away from the fixed frame, the baffle is arranged perpendicular to the locking rod, a spring is sleeved on the locking rod, one end of the spring is fixedly connected to the mounting plate, and the other end is fixedly connected to the baffle, and the end of the locking rod away from the baffle is located between two adjacent teeth of the gear and abuts against the teeth. The utility model has the effect of reducing the amount of rotation of the adjusting blade under the action of airflow and stabilizing the air volume of the air conditioner."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use of the utility model, the locking rod is stuck between two adjacent teeth of the gear by setting the mounting frame, locking rod, spring, baffle and gear, thereby locking the gear and the rotating shaft. Therefore, when the airflow acts on the adjusting blade, the adjusting blade will not rotate, thereby achieving stable air outlet. However, in actual use, the staff is required to pull the pull ring while rotating the rotating wheel. After rotating the adjusting blade to the appropriate angle, the staff is required to continue holding the rotating wheel, which consumes a lot of physical strength. When the central air conditioner is outlet, it is easy to cause the airflow to leak out from the gap between the adjusting blade and the valve body. This has certain limitations. Therefore, it is necessary to improve an air volume regulating valve for a central air conditioner to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an air volume regulating valve for a central air conditioner to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a central air-conditioning air volume regulating valve, comprising a valve body, a flange edge is fixedly installed on the outside of the valve body, an adjusting mechanism is arranged on the outside of the flange edge, and an extrusion mechanism is arranged on the outside of the valve body.

[0008] The adjustment mechanism comprises a rotating assembly and a positioning assembly. The rotating assembly is arranged outside the flange edge, and the positioning assembly is arranged outside the rotating assembly.

[0009] Preferably, the rotating assembly includes a vertical plate, which is fixedly mounted on the top of the flange edge, a first connecting shell is fixedly mounted on the outside of the vertical plate, a worm is rotatably mounted inside the first connecting shell, a first handle is fixedly mounted on one end of the worm, a worm wheel is meshed on the outside of the worm, a rotating shaft is fixedly mounted on the inside of the worm wheel, the rotating shaft is rotatably mounted with the first connecting shell, and a positioning block is fixedly mounted on the outside of the rotating shaft to facilitate the adjustment of the air volume.

[0010] Preferably, a through hole is opened inside the vertical plate at a position corresponding to the rotating shaft, and the rotating shaft is rotatably installed in the through hole to facilitate the rotation of the rotating shaft.

[0011] Preferably, the positioning assembly includes an adjusting blade, which is slidably mounted on the outside of the rotating shaft, and the adjusting blade is slidably mounted on the positioning block. A sealing gasket is fixedly mounted on the outside of the adjusting blade, an extension plate is fixedly mounted on one side of the adjusting blade, and a bolt is mounted on the internal thread of the extension plate. A second connecting shell is fixedly mounted on the top of the extension plate, and a slide plate is slidably mounted on the inner wall of the second connecting shell. An insert block is fixedly mounted on the bottom of the slide plate, and the insert block is slidably mounted on the extension plate, and the insert block is slidably mounted on the second connecting shell. A sliding column is fixedly mounted on the top of the slide plate, and the sliding column is slidably mounted on the second connecting shell. A pull ring is fixedly mounted on the top of the sliding column, and a spring is fixedly mounted between the top of the slide plate and the second connecting shell to facilitate the installation and disassembly of the adjusting blade.

[0012] Preferably, a threaded hole is provided inside the positioning block at a position corresponding to the bolt, and the bolt is threadedly installed in the threaded hole, so as to facilitate the limiting work of the adjusting blade.

[0013] Preferably, a groove is provided inside the positioning block at a position corresponding to the inserting block, and the inserting block is inserted into the groove to facilitate the limiting work of the adjusting blade.

[0014] Preferably, the extrusion mechanism includes a connecting block, which is fixedly mounted on the outside of the valve body, a two-way threaded rod is rotatably mounted inside the connecting block, a second rotating handle is fixedly mounted on one end of the two-way threaded rod, a threaded plate is mounted on the external thread of the two-way threaded rod, a sliding cover is fixedly mounted on the inner side of the threaded plate, the sliding cover is slidably mounted on the valve body, and the sliding cover is movably mounted on the rotating shaft to reduce airflow leakage.

[0015] Compared with the prior art, the utility model provides an air volume regulating valve for central air conditioning, which has the following beneficial effects:

[0016] The air volume regulating valve for a central air conditioner has an adjusting mechanism. During use, the positioning block is provided to facilitate the positioning of the adjusting blade. The insert block is provided to facilitate the initial limiting of the extension plate. The bolt is rotated to threadably mount the bolt with the positioning block to ensure the stability of the adjusting blade. Repeated operations can keep the bolt away from the positioning block. The pull ring is pulled to squeeze the slide plate against the spring, so that the insert block is away from the positioning block, which is convenient for disassembly and cleaning of the adjusting blade. The worm is rotated by rotating the first rotating handle, and the rotating shaft is rotated with the cooperation of the worm wheel, so that the angle of the adjusting blade is adjusted to control the air volume. The operation is convenient, saving time and effort.

[0017] The central air-conditioning air volume regulating valve has an extrusion mechanism, during use, by rotating the second turning handle, the threaded plate on which the external thread of the bidirectional threaded rod is threadedly mounted moves, thereby moving the sliding cover away from the sealing pad, making it easier to rotate or disassemble the regulating blade. Repeating the operation allows the sliding cover to approach the sealing pad, squeezing the sealing pad, thereby preventing airflow from flowing out of the gap between the sealing pad and the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 3 This is a schematic diagram of the structure of the rotating assembly of the utility model;

[0022] Figure 4This is a schematic diagram of the position relationship of the positioning components of the utility model;

[0023] Figure 5 This is a schematic diagram of the spring position relationship of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the extrusion mechanism of the utility model;

[0025] Figure 7 It is a schematic diagram of the position relationship of the sliding cover of the utility model.

[0026] In the figure: 1. valve body; 2. flange edge; 3. adjusting mechanism; 31. rotating assembly; 311. vertical plate; 312. first connecting shell; 313. worm; 314. first rotating handle; 315. worm wheel; 316. rotating shaft; 317. positioning block; 32. positioning assembly; 321. adjusting blade; 322. sealing gasket; 323. extension plate; 324. bolt; 325. second connecting shell; 326. sliding plate; 327. insert block; 328. sliding column; 329. pull ring; 3210. spring; 4. extrusion mechanism; 401. connecting block; 402. bidirectional threaded rod; 403. second rotating handle; 404. threaded plate; 405. sliding cover. DETAILED DESCRIPTION

[0027] 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.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0029] See also Figure 1-5 The utility model provides a technical solution: an air volume regulating valve for a central air conditioner, comprising a valve body 1, a flange 2 is fixedly mounted on the outside of the valve body 1, an adjusting mechanism 3 is arranged on the outside of the flange 2, and an extrusion mechanism 4 is arranged on the outside of the valve body 1.

[0030] The adjustment mechanism 3 includes a rotating assembly 31 and a positioning assembly 32 . The rotating assembly 31 is arranged outside the flange 2 , and the positioning assembly 32 is arranged outside the rotating assembly 31 .

[0031] Furthermore, the rotating assembly 31 includes a vertical plate 311, which is fixedly installed on the top of the flange edge 2. A first connecting shell 312 is fixedly installed on the outside of the vertical plate 311, a worm 313 is rotatably installed inside the first connecting shell 312, a first handle 314 is fixedly installed on one end of the worm 313, a worm wheel 315 is meshed on the outside of the worm 313, a rotating shaft 316 is fixedly installed inside the worm wheel 315, the rotating shaft 316 is rotatably installed with the first connecting shell 312, and a positioning block 317 is fixedly installed on the outside of the rotating shaft 316 to facilitate the adjustment of the air volume.

[0032] Furthermore, a through hole is opened inside the vertical plate 311 at a position corresponding to the rotating shaft 316 , and the rotating shaft 316 is rotatably installed in the through hole to facilitate the rotation of the rotating shaft 316 .

[0033] Further, the positioning assembly 32 includes an adjusting blade 321, the adjusting blade 321 is slidably mounted on the outside of the rotating shaft 316, the adjusting blade 321 and the positioning block 317 are slidably mounted, a sealing gasket 322 is fixedly mounted on the outside of the adjusting blade 321, an extension plate 323 is fixedly mounted on one side of the adjusting blade 321, a bolt 324 is installed on the internal thread of the extension plate 323, a second connecting shell 325 is fixedly mounted on the top of the extension plate 323, and a The slide plate 326 has an insert block 327 fixedly installed at the bottom thereof, the insert block 327 is slidably installed with the extension plate 323, the insert block 327 is slidably installed with the second connecting shell 325, a slide column 328 is fixedly installed at the top of the slide plate 326, the slide column 328 is slidably installed with the second connecting shell 325, a pull ring 329 is fixedly installed at the top of the slide column 328, a spring 3210 is fixedly installed between the top of the slide plate 326 and the second connecting shell 325, to facilitate the installation and disassembly of the adjusting blade 321.

[0034] Furthermore, a threaded hole is provided inside the positioning block 317 at a position corresponding to the bolt 324 , and the bolt 324 is threadedly installed in the threaded hole, so as to facilitate the limiting work of the adjusting blade 321 . Example 2

[0035] See also Figure 6-7 In combination with the first embodiment, it is further obtained that a groove is provided inside the positioning block 317 at a position corresponding to the inserting block 327 , and the inserting block 327 is inserted into the groove, so as to facilitate the limiting work of the adjusting blade 321 .

[0036] Furthermore, the extrusion mechanism 4 includes a connecting block 401, which is fixedly mounted on the outside of the valve body 1, and a bidirectional threaded rod 402 is rotatably mounted inside the connecting block 401, a second rotating handle 403 is fixedly mounted on one end of the bidirectional threaded rod 402, a threaded plate 404 is threadedly mounted on the external thread of the bidirectional threaded rod 402, a sliding cover 405 is fixedly mounted on the inner side of the threaded plate 404, the sliding cover 405 is slidably mounted on the valve body 1, and the sliding cover 405 is movably mounted on the rotating shaft 316 to reduce leakage of airflow.

[0037] In actual operation, when the device is used, the positioning block 317 is provided to facilitate the positioning of the adjusting blade 321, and the insert block 327 is provided to facilitate the initial limiting of the extension plate 323. The bolt 324 is rotated to be threadedly installed with the positioning block 317 to ensure the stability of the adjusting blade 321. The bolt 324 is repeatedly operated to keep the bolt away from the positioning block 317. The pull ring 329 is pulled to make the slide plate 326 squeeze the spring 3210, so that the insert block 327 is away from the positioning block 317, which is convenient for disassembly and cleaning of the adjusting blade 321. The first handle 314 is rotated to make the bolt 324 move away from the positioning block 317. The worm 313 is rotated, and with the cooperation of the worm wheel 315, the rotating shaft 316 is rotated, so that it is convenient to adjust the angle of the adjusting blade 321 and control the air volume. The operation is convenient, time-saving and labor-saving. By rotating the second rotating handle 403, the threaded plate 404 installed with the external thread of the bidirectional threaded rod 402 is moved, so that the sliding cover 405 is away from the sealing gasket 322, which is convenient for rotating or disassembling the adjusting blade 321. Repeating the operation makes the sliding cover 405 close to the sealing gasket 322, squeezes the sealing gasket 322, thereby preventing the airflow from flowing out from the gap between the sealing gasket 322 and the valve body 1.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. An air volume regulating valve for a central air conditioner, comprising a valve body (1), characterized in that: A flange (2) is fixedly mounted on the outside of the valve body (1), an adjustment mechanism (3) is arranged on the outside of the flange (2), and an extrusion mechanism (4) is arranged on the outside of the valve body (1); The adjustment mechanism (3) comprises a rotating assembly (31) and a positioning assembly (32); the rotating assembly (31) is arranged outside the flange edge (2), and the positioning assembly (32) is arranged outside the rotating assembly (31).

2. The air volume regulating valve for central air conditioner according to claim 1, characterized in that: The rotating assembly (31) comprises a vertical plate (311), the vertical plate (311) being fixedly mounted on the top of the flange edge (2), a first connecting shell (312) being fixedly mounted on the outside of the vertical plate (311), a worm (313) being rotatably mounted inside the first connecting shell (312), a first rotating handle (314) being fixedly mounted on one end of the worm (313), a worm wheel (315) being meshed on the outside of the worm (313), a rotating shaft (316) being fixedly mounted inside the worm wheel (315), the rotating shaft (316) being rotatably mounted on the first connecting shell (312), and a positioning block (317) being fixedly mounted on the outside of the rotating shaft (316).

3. The air volume regulating valve for central air conditioner according to claim 2, characterized in that: A through hole is provided inside the vertical plate (311) at a position corresponding to the rotating shaft (316), and the rotating shaft (316) is rotatably mounted in the through hole.

4. The air volume regulating valve for central air conditioner according to claim 2, characterized in that: The positioning assembly (32) comprises an adjusting blade (321), the adjusting blade (321) being slidably mounted on the outside of the rotating shaft (316), the adjusting blade (321) being slidably mounted on the positioning block (317), a sealing gasket (322) being fixedly mounted on the outside of the adjusting blade (321), an extension plate (323) being fixedly mounted on one side of the adjusting blade (321), a bolt (324) being mounted on the internal thread of the extension plate (323), a second connecting shell (325) being fixedly mounted on the top of the extension plate (323), and an inner wall of the second connecting shell (325) A slide plate (326) is slidably mounted on the upper surface, an insert block (327) is fixedly mounted on the bottom of the slide plate (326), the insert block (327) is slidably mounted on the extension plate (323), the insert block (327) is slidably mounted on the second connecting shell (325), a slide column (328) is fixedly mounted on the top of the slide plate (326), the slide column (328) is slidably mounted on the second connecting shell (325), a pull ring (329) is fixedly mounted on the top of the slide column (328), and a spring (3210) is fixedly mounted between the top of the slide plate (326) and the second connecting shell (325).

5. The air volume regulating valve for central air conditioner according to claim 4, characterized in that: A threaded hole is provided inside the positioning block (317) at a position corresponding to the bolt (324), and the bolt (324) is threadedly installed in the threaded hole.

6. The air volume regulating valve for central air conditioner according to claim 4, characterized in that: A groove is provided inside the positioning block (317) at a position corresponding to the inserting block (327), and the inserting block (327) is inserted into the groove.

7. The air volume regulating valve for central air conditioner according to claim 4, characterized in that: The extrusion mechanism (4) comprises a connecting block (401), wherein the connecting block (401) is fixedly mounted on the outside of the valve body (1), a bidirectional threaded rod (402) is rotatably mounted inside the connecting block (401), a second rotating handle (403) is fixedly mounted on one end of the bidirectional threaded rod (402), a threaded plate (404) is threadedly mounted on the outside of the bidirectional threaded rod (402), a sliding cover (405) is fixedly mounted on the inside of the threaded plate (404), the sliding cover (405) is slidably mounted on the valve body (1), and the sliding cover (405) is movably mounted on the rotating shaft (316).

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