Plenum chamber for air supply system

Abstract

The plenum chamber for the air supply system comprises a plenum chamber body, the inner wall of the plenum chamber body is fixedly sleeved with a partition plate, a ventilation opening is formed in the surface of one side of the partition plate, a hexagonal sliding groove is formed in the surface of one side of the partition plate, and the inner wall of the hexagonal sliding groove is slidably connected with guide sliding blocks distributed in an annular array. A triangular adjusting plate is fixedly connected to the surface of one side of each guide sliding block, the surfaces of one sides of the multiple triangular adjusting plates make contact with the surface of one side of the partition plate, and every two adjacent triangular adjusting plates make contact with each other. The air volume is automatically adjusted to be weakened and enhanced, so that the air volume adjusting limit of the plenum chamber body is improved, and the use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of static pressure boxes, in particular to a static pressure box for an air supply system. Background Art

[0002] Plenum boxes are widely used in ventilation systems for construction and air conditioning projects. They are essential components for air supply systems, reducing dynamic pressure, increasing static pressure, stabilizing airflow, and reducing airflow vibration, resulting in more efficient air supply. Plenum boxes are devices that allow airflow while effectively preventing or attenuating the outward transmission of sound energy.

[0003] For example, a static pressure box disclosed in a Chinese patent document (Announcement No.: CN219656293U) is composed of two connected rectangular boxes, and the static pressure box body is divided into two groups of inner cavities by a partition. Therefore, when in use, the airflow can achieve a static pressure effect when passing through the small inner cavity. The airflow that has passed the first static pressure effect can achieve a second static pressure effect when it enters the large inner cavity through the air guide hole of the partition. Under the combination of the two static pressure effects, the static pressure effect relative to the large-volume static pressure box body can be achieved. Therefore, the overall size of the static pressure box body can be greatly reduced, which is convenient for installation in some small environments.

[0004] However, there are still the following shortcomings:

[0005] The air outlet of the static pressure box is open and has spiral blades inside. Therefore, when adjusting the air volume of the static pressure box, it can only be adjusted by adjusting the speed of the fan. The speed gear adjustment of the fan is limited, and the wind difference between adjacent gears is large, which cannot meet the daily use needs well, resulting in low practicality. Utility Model Content

[0006] In response to the defects in the existing technology, the utility model provides a static pressure box for an air supply system, which changes the exhaust diameter of the vent through the coordinated movement of multiple triangular adjustment plates, realizes automatic adjustment of the weakening and strengthening of the air volume, thereby improving the air volume adjustment limit of the static pressure box body and meeting the use requirements.

[0007] The utility model provides a static pressure box for an air supply system, comprising a static pressure box body, an inner wall of the static pressure box body being fixedly sleeved with a partition, a side surface of the partition being provided with a vent, a side surface of the partition being provided with a hexagonal slide, an inner wall of the hexagonal slide being slidably connected with a guide slider distributed in a ring array, a side surface of the guide slider being fixedly connected with a triangular adjustment plate, one side surface of a plurality of the triangular adjustment plates being in contact with one side surface of the partition, and two adjacent triangular adjustment plates being in contact with each other;

[0008] An air volume regulating device is provided on the other side surface of the triangular regulating plate, and the air volume regulating device includes a driving rod, one end of which is fixedly connected to the other side surface of the triangular regulating plate.

[0009] Preferably, an annular sliding groove is provided on one side surface of the partition, and arc-shaped sliding blocks distributed in an annular array are slidably sleeved on the inner wall of the annular sliding groove.

[0010] Preferably, one side surface of each of the plurality of arc-shaped sliders is fixedly connected to a rotating ring, one side surface of the rotating ring contacts one side surface of the partition, and an outer surface of the rotating ring is fixedly connected to an arc-shaped rack.

[0011] Preferably, an annular mounting plate is fixedly sleeved on the inner wall of the rotating ring, and a side surface of the annular mounting plate is provided with driving grooves distributed in an annular array.

[0012] Preferably, the inner wall of the driving groove is slidably plugged into the outer surface of the driving rod, the inner bottom wall of the static pressure box body is fixedly connected with a guide rod, and one end of the guide rod is fixedly connected to the inner top wall of the static pressure box body.

[0013] Preferably, a movable rack is movably sleeved on the outer surface of the guide rod, the tooth surface of the movable rack is engaged with the tooth surface of the arc-shaped rack, and a servo electric cylinder is fixedly mounted on one side surface of the partition.

[0014] Preferably, one end of the servo electric cylinder piston rod is fixedly connected to a connecting block, one end of the connecting block is fixedly connected to the front of the movable rack, one side surface of the static pressure box body is fixedly connected to an air inlet pipe, and the other side surface of the static pressure box body is fixedly connected to an air outlet pipe.

[0015] The beneficial effects of the present invention are as follows:

[0016] By setting up an air volume adjustment device and coordinating the movement of multiple triangular adjustment plates, the exhaust diameter of the vent is changed, and the automatic adjustment of the weakening and strengthening of the air volume is achieved, thereby improving the air volume adjustment limit of the static pressure box body and meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a front view of a static pressure box for an air supply system provided by the utility model;

[0019] Figure 2 for Figure 1 A three-dimensional diagram of the static pressure box body structure of a static pressure box for an air supply system is shown;

[0020] Figure 3 for Figure 1 An exploded view of a partition structure of a static pressure box for an air supply system is shown;

[0021] Figure 4 for Figure 1 The figure shows a three-dimensional diagram of the rotating ring structure of a static pressure box for an air supply system.

[0022] In the accompanying drawings, 1. Static pressure box body; 2. Partition; 3. Vent; 4. Hexagonal slide; 5. Guide slider; 6. Triangular adjustment plate; 7. Drive rod; 71. Annular slide; 72. Arc slider; 73. Rotating ring; 74. Arc rack; 75. Annular mounting plate; 76. Drive groove; 77. Guide rod; 78. Moving rack; 79. Servo electric cylinder; 710. Connecting block; 8. Air inlet pipe; 9. Air outlet pipe. DETAILED DESCRIPTION

[0023] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0025] Reference Figure 1-4 A static pressure box for an air supply system includes a static pressure box body 1, a partition 2 is fixedly sleeved on the inner wall of the static pressure box body 1, a ventilation port 3 is opened on one side surface of the partition 2, a hexagonal slide 4 is opened on one side surface of the partition 2, and a guide slider 5 distributed in a ring array is slidably connected to the inner wall of the hexagonal slide 4. A triangular adjustment plate 6 is fixedly connected to one side surface of the guide slider 5. The guide slider 5 plays a role in guiding the translation of the triangular adjustment plate 6. One side surface of multiple triangular adjustment plates 6 is in contact with one side surface of the partition 2, and two adjacent triangular adjustment plates 6 are in contact with each other;

[0026] An air volume regulating device is provided on the other side surface of the triangular regulating plate 6 , and the air volume regulating device includes a driving rod 7 , one end of which is fixedly connected to the other side surface of the triangular regulating plate 6 .

[0027] One side surface of the partition 2 is provided with an annular slide groove 71, and the inner wall of the annular slide groove 71 is slidably sleeved with an arc-shaped slider 72 distributed in an annular array. One side surface of multiple arc-shaped sliders 72 is fixedly connected to a rotating ring 73. The annular slide groove 71 and the arc-shaped slider 72 cooperate with the rotating ring 73 to rotate stably. One side surface of the rotating ring 73 contacts one side surface of the partition 2. The outer surface of the rotating ring 73 is fixedly connected with an arc-shaped rack 74. The inner wall of the rotating ring 73 is fixedly sleeved with an annular mounting plate 75. The rotating ring 73 drives the annular mounting plate 75 to rotate. One side surface of the annular mounting plate 75 is provided with a driving groove 76 distributed in an annular array.

[0028] The inner wall of the driving groove 76 is slidably plugged into the outer surface of the driving rod 7, and the inner bottom wall of the static pressure box body 1 is fixedly connected to a guide rod 77, one end of the guide rod 77 is fixedly connected to the inner top wall of the static pressure box body 1, and the outer surface of the guide rod 77 is movably sleeved with a moving rack 78, which guides the movement of the moving rack 78, and the tooth surface of the moving rack 78 engages with the tooth surface of the arc rack 74. A servo electric cylinder 79 is fixedly installed on one side surface of the partition 2, and one end of the piston rod of the servo electric cylinder 79 is fixedly connected to a connecting block 710, and one end of the connecting block 710 is fixedly connected to the front of the moving rack 78. The servo electric cylinder 79 drives the moving rack 78 to move up and down through the connecting block 710. One side surface of the static pressure box body 1 is fixedly connected to the air inlet pipe 8, and the other side surface of the static pressure box body 1 is fixedly connected to the air outlet pipe 9.

[0029] By setting up an air volume adjustment device and coordinating and moving multiple triangular adjustment plates 6, the exhaust diameter of the vent 3 is changed, and the automatic adjustment of the weakening and strengthening of the air volume is achieved, thereby improving the air volume adjustment limit of the static pressure box body 1 and meeting the use requirements.

[0030] Working principle: Step 1, start the servo electric cylinder 79 piston rod to extend, the extension of the servo electric cylinder 79 piston rod drives the moving rack 78 to move through the connecting block 710, the moving rack 78 is stably moved by the cooperation of the guide rod 77, and drives the rotating ring 73 to rotate through the meshing arc-shaped rack 74, the rotating ring 73 drives the annular mounting plate 75 to rotate stably through the cooperation of the annular slide 71 and the arc-shaped slider 72, the rotation of the annular mounting plate 75 drives the driving rod 7 to move through the driving groove 76, and the movement of the driving rod 7 drives multiple triangular adjustment plates 6 to guide movement through the cooperation of the hexagonal slide 4 and the guide slider 5;

[0031] In step two, the synchronous movement of multiple triangular adjustment plates 6 will open the slot for air circulation at their tips, so that the airflow in the vent 3 is transported to the air outlet 9 through the socket and the annular mounting plate 75. By adjusting the movement distance of the triangular adjustment plate 6, the size of the slot for air circulation is changed, and the air volume can be accurately adjusted. Conversely, the piston rod of the servo electric cylinder 79 is started to retract, so that the multiple triangular plates move in the opposite direction synchronously, which will reduce the size of the slot for air circulation and reduce the air volume.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A static pressure box for an air supply system, comprising a static pressure box body (1), characterized in that: The inner wall of the static pressure box body (1) is fixedly sleeved with a partition (2), a ventilation hole (3) is provided on one side surface of the partition (2), a hexagonal slide groove (4) is provided on one side surface of the partition (2), the inner wall of the hexagonal slide groove (4) is slidably connected with a guide slider (5) distributed in a ring array, and a triangular adjustment plate (6) is fixedly connected to one side surface of the guide slider (5), and one side surface of multiple triangular adjustment plates (6) are in contact with one side surface of the partition (2), and two adjacent triangular adjustment plates (6) are in contact with each other; The other side surface of the triangular adjustment plate (6) is provided with an air volume adjustment device, and the air volume adjustment device includes a driving rod (7), one end of which is fixedly connected to the other side surface of the triangular adjustment plate (6).

2. The static pressure box for an air supply system according to claim 1, characterized in that: An annular sliding groove (71) is provided on one side surface of the partition (2), and an arc-shaped sliding block (72) distributed in an annular array is slidably sleeved on the inner wall of the annular sliding groove (71).

3. The static pressure box for an air supply system according to claim 2, characterized in that: One side surface of each of the arc-shaped sliders (72) is fixedly connected to a rotating ring (73), one side surface of the rotating ring (73) contacts one side surface of the partition (2), and the outer surface of the rotating ring (73) is fixedly connected to an arc-shaped rack (74).

4. The static pressure box for an air supply system according to claim 3, characterized in that: An annular mounting plate (75) is fixedly sleeved on the inner wall of the rotating ring (73), and a side surface of the annular mounting plate (75) is provided with driving grooves (76) distributed in an annular array.

5. The static pressure box for an air supply system according to claim 4, characterized in that: The inner wall of the driving groove (76) is slidably plugged into the outer surface of the driving rod (7), the inner bottom wall of the static pressure box body (1) is fixedly connected with a guide rod (77), and one end of the guide rod (77) is fixedly connected to the inner top wall of the static pressure box body (1).

6. The static pressure box for an air supply system according to claim 5, characterized in that: The outer surface of the guide rod (77) is movably sleeved with a movable rack (78), the tooth surface of the movable rack (78) is meshed with the tooth surface of the arc-shaped rack (74), and a servo electric cylinder (79) is fixedly mounted on one side surface of the partition (2).

7. The static pressure box for an air supply system according to claim 6, characterized in that: One end of the piston rod of the servo electric cylinder (79) is fixedly connected to a connecting block (710), and one end of the connecting block (710) is fixedly connected to the front of the movable rack (78). One side surface of the static pressure box body (1) is fixedly connected to an air inlet pipe (8), and the other side surface of the static pressure box body (1) is fixedly connected to an air outlet pipe (9).

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