A static pressure box with adjustable air volume

Abstract

This utility model relates to the technical field of static pressure boxes, and in particular to a static pressure box with adjustable airflow, which makes it easier to open and close the maintenance slot, greatly reducing time consumption and effectively improving maintenance efficiency. It includes a static pressure box body, a maintenance cover, and a bidirectional threaded rod. The maintenance cover has a T-shaped structure, with a carrying ring fixedly connected to the middle of both the front and rear ends. A maintenance slot is opened at the top of the static pressure box body, and the maintenance cover is installed on the maintenance slot. A handle is fixedly sleeved in the middle of the bidirectional threaded rod. Two sets of threaded sleeves are symmetrically screwed onto the bidirectional threaded rod, and the inner side of the connecting plate is aligned with the inner side of the pressure plate. The two sets of pressure plates symmetrically press against the top of the maintenance cover. A rotating shaft is fixedly connected to the middle of both the front and rear ends of the two sets of pressure plates. Connecting rods are rotatably mounted on each of the four sets of rotating shafts. Two sets of connecting shafts are symmetrically fixedly connected to the left and right sides of both the front and rear ends of the static pressure box body, and the bottom ends of the four sets of connecting rods are rotatably mounted on the four sets of connecting shafts.

Description

Technical Field

[0001] This utility model relates to the technical field of static pressure boxes, and in particular to a static pressure box with adjustable air volume. Background Technology

[0002] A plenum chamber is an essential component of an air supply system for reducing dynamic pressure, increasing static pressure, stabilizing airflow, and reducing airflow vibration. It can make the air supply effect more ideal and is a device that can both allow airflow to pass through and effectively prevent or reduce the outward transmission of sound energy.

[0003] When a static pressure box is in use, it is usually equipped with horizontal and vertical adjustment fans inside to change the air volume of the static pressure box. For example, a static pressure box with adjustable air volume disclosed in utility model patent publication number CN219976716U has multiple vertical and horizontal adjustment fans inside. Through the cooperation of a maintenance slot, connecting plate, sealing block, support plate, rotating plate, threaded column, and extrusion plate, the connecting plate drives the sealing block to interlock with the inner cavity of the maintenance slot, the threaded column rotates on the support plate, and simultaneously pushes the extrusion plate to move. The extrusion plate extrudes the connecting plate, thus facilitating maintenance operations inside the static pressure box.

[0004] The adjustable air volume static pressure box in the aforementioned patented technology allows for maintenance of the internal parts of the static pressure box by opening the maintenance slot. However, opening and closing the maintenance slot is cumbersome and time-consuming, thus affecting maintenance efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an adjustable air volume static pressure box that makes it easier to open and close the maintenance slot, greatly reduces the time spent, and effectively improves maintenance efficiency.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable air volume static pressure box, comprising a static pressure box body, an inspection cover, and a pressure holding mechanism. The inspection cover has a T-shaped structure, with a handle ring fixedly connected to the middle of both the front and rear ends of the inspection cover. An inspection groove is provided at the top of the static pressure box body, and the inspection cover is mounted on the inspection groove. The pressure holding mechanism includes a bidirectional threaded rod, with a handle fixedly sleeved in the middle of the bidirectional threaded rod. Two sets of threaded sleeves are symmetrically screwed onto the bidirectional threaded rod. Connecting plates are fixedly connected to the outer sides of both sets of threaded sleeves. Pressure plates are fixedly connected to the bottom ends of both sets of connecting plates, and the inner sides of the connecting plates are aligned with the inner sides of the pressure plates. The two sets of pressure plates symmetrically press against the top of the inspection cover. Rotating shafts are fixedly connected to the middle of both the front and rear ends of both sets of pressure plates. Connecting rods are rotatably mounted on each of the four sets of rotating shafts. Two sets of connecting shafts are symmetrically fixedly connected to the left and right sides of both the front and rear ends of the static pressure box body, and the bottom ends of the four sets of connecting rods are rotatably mounted on the four sets of connecting shafts.

[0008] Preferably, a sealing strip is fixedly connected to the edge of the inspection slot.

[0009] Preferably, the inspection cover has an observation opening in the middle, and an observation window is fixedly installed inside the observation opening.

[0010] Preferably, both sets of pressure plates have a fastening pad fixedly connected to their bottom ends.

[0011] Preferably, a reinforcing plate is fixedly connected between the outer side of the connecting plate and the top of the pressure plate.

[0012] Preferably, the handle has multiple sets of anti-slip protrusions integrally formed on both the upper and lower sides.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, by turning the double-sided threaded rod with the handle, the pressure plate can be raised and lowered through the threaded sleeve. After the pressure plate is raised, the inspection cover can be removed to open the inspection slot. After the inspection is completed, the inspection cover is put back on the inspection slot. By lowering the pressure plate, the pressure plate is pressed tightly onto the inspection cover, thus fixing the inspection cover and closing the inspection slot. When opening and closing the inspection slot, it is only necessary to turn the double-sided threaded rod with the handle, which makes it more convenient to open and close the inspection slot, greatly reduces the time spent, and effectively improves the inspection efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is an isometric structural schematic diagram of the static pressure tank body in this utility model;

[0016] Figure 3 This is an isometric structural diagram of the holding mechanism in this utility model;

[0017] Figure 4This is an isometric structural diagram of the inspection cover in this utility model;

[0018] Figure 5 This is an isometric structural diagram of the sealing strip in this utility model;

[0019] Figure 6 This is a partially enlarged structural diagram of point A of this utility model;

[0020] The following are labels in the attached diagram: 1. Static pressure box body; 2. Inspection cover; 3. Inspection slot; 4. Two-way threaded rod; 5. Tightening handle; 6. Threaded sleeve; 7. Connecting plate; 8. Pressure plate; 9. Rotating shaft; 10. Connecting rod; 11. Connecting shaft; 12. Sealing strip; 13. Handle ring; 14. Observation window; 15. Fastening pad; 16. Reinforcing plate; 17. Anti-slip ridge. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] Example

[0023] Please see Figures 1-6 This utility model discloses an adjustable airflow static pressure box, comprising a static pressure box body 1, an inspection cover 2, and a bidirectional threaded rod 4. The inspection cover 2 has a T-shaped structure, with a carrying ring 13 fixedly connected to the middle of both the front and rear ends of the inspection cover 2. The top of the static pressure box body 1 has an inspection groove 3, and the inspection cover 2 is fitted onto the inspection groove 3. A handle 5 is fixedly sleeved in the middle of the bidirectional threaded rod 4. Two sets of threaded sleeves 6 are symmetrically screwed onto the bidirectional threaded rod 4. Connecting plates 7 are fixedly connected to the outer sides of the two sets of threaded sleeves 6. Pressure plates 8 are fixedly connected to the bottom ends of the two sets of connecting plates 7, with the inner sides of the connecting plates 7 aligned with the inner sides of the pressure plates 8. The two sets of pressure plates 8 symmetrically press against the top of the inspection cover 2. Rotating shafts 9 are fixedly connected to the middle of both the front and rear ends of the two sets of pressure plates 8. Each of the four sets of rotating shafts 9 is rotatably fitted with a... The connecting rods 10 and the static pressure box body 1 are symmetrically fixed with two sets of connecting shafts 11 at both ends. The bottom ends of the four sets of connecting rods 10 are respectively rotatably fitted onto the four sets of connecting shafts 11. In use, by turning the double-threaded rod 4 by turning the handle 5, the pressure plate 8 can be raised and lowered through the threaded sleeve 6. After the pressure plate 8 is raised, the inspection cover 2 can be removed to open the inspection slot 3. After the inspection is completed, the inspection cover 2 is put back on the inspection slot 3. By lowering the pressure plate 8, the pressure plate 8 is pressed tightly onto the inspection cover 2, thus fixing the inspection cover 2 and closing the inspection slot 3. When opening and closing the inspection slot 3, it is only necessary to turn the double-threaded rod 4 by turning the handle 5, which makes it easier to open and close the inspection slot, greatly reduces the time spent, and effectively improves the maintenance efficiency.

[0024] A sealing strip 12 is fixedly connected to the edge of the inspection groove 3; by setting the sealing strip 12, the inspection cover 2 can be more tightly closed when it is installed, effectively improving the sealing performance.

[0025] The inspection cover 2 has an observation port in the middle, and an observation window 14 is fixedly installed inside the observation port; by setting the observation window 14, it is convenient to observe the internal operation of the static pressure box body 1 so as to carry out maintenance in a timely manner.

[0026] Both sets of pressure plates 8 are fixedly connected to the bottom end with fastening rubber pads 15; by setting fastening rubber pads 15, the pressure plates 8 can be pressed more tightly and securely on the inspection cover 2, so as to prevent slippage between the bottom end of the pressure plates 8 and the top end of the inspection cover 2.

[0027] A reinforcing plate 16 is fixedly connected between the outer side of the connecting plate 7 and the top of the pressure plate 8; by setting the reinforcing plate 16, the connection between the connecting plate 7 and the pressure plate 8 can be made more firm and stable.

[0028] The handle 5 is integrally provided with multiple sets of anti-slip protrusions 17 on both the upper and lower sides; by setting the anti-slip protrusions 17, the hand can be effectively prevented from slipping when the bidirectional threaded rod 4 is rotated by the handle 5.

[0029] This utility model discloses an adjustable airflow static pressure box. Its working principle is as follows: Initially, the threaded sleeve 6 is screwed onto the double-threaded rod 4 in a retracted state, causing the pressure plate 8 to press against the top of the inspection cover 2. The connecting rod 10 is tilted and blocks the front and rear ends of the inspection cover 2, thus firmly securing the inspection cover 2 onto the inspection slot 3. When maintenance is required on the interior of the static pressure box body 1, the double-threaded rod 4 is rotated clockwise by the handle 5. This causes the threaded sleeve 6 to move outward. Simultaneously, the threaded sleeve 6, through the connecting plate 7, moves the pressure plate 8 outward, causing the pressure plate 8 to rotate outward, thus raising the pressure plate 8. The connecting shaft 11 is positioned on both sides of the inspection slot 3. When the connecting rod 10 rotates to a vertical position, the pressure plate 8 rises to its highest point and moves to both sides of the inspection slot 3, allowing airflow to be cleared. Lift and remove the inspection cover 2 using the handle 13, open the inspection slot 3, and then inspect the inside of the static pressure box body 1. After removing the inspection cover 2, the bidirectional threaded rod 4 and the threaded sleeve 6 are at a sufficient height and will not obstruct the inspection of the inside of the static pressure box body 1. After the inspection is completed, replace the inspection cover 2 and rotate the bidirectional threaded rod 4 counterclockwise using the handle 5 to press the pressure plate 8 back onto the inspection cover 2. Then, tilt the connecting rod 10 back to block the front and rear ends of the inspection cover 2. The static pressure box body 1 in this utility model is referenced from a static pressure box with adjustable air volume disclosed in patent publication number CN2199767 Reinforcing Plate 16U, which belongs to the disclosed prior art. Its specific structure and working principle have been described in detail in the published patent, so they will not be elaborated here.

[0030] The static pressure box with adjustable air volume of this utility model can be installed, connected or set in a common mechanical way, and can be implemented as long as it can achieve its beneficial effect.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An adjustable volume static pressure tank comprising a static pressure tank body (1), characterized in that, It also includes an inspection cover (2) and a pressing mechanism; Inspection cover (2), the inspection cover (2) is T-shaped, and a handle ring (13) is fixedly connected to the middle of both the front and rear ends of the inspection cover (2). The top of the static pressure box body (1) is provided with an inspection groove (3), and the inspection cover (2) is installed on the inspection groove (3). The pressing mechanism includes a bidirectional threaded rod (4), a screw handle (5) is fixedly sleeved in the middle of the bidirectional threaded rod (4), two sets of threaded sleeves (6) are symmetrically screwed on the bidirectional threaded rod (4), a connecting plate (7) is fixedly connected to the outside of the two sets of threaded sleeves (6), a pressure plate (8) is fixedly connected to the bottom of the two sets of connecting plates (7), and the inner side of the connecting plate (7) is aligned with the inner side of the pressure plate (8). The two sets of pressure plates (8) are symmetrically pressed on the top of the inspection cover (2). A rotating shaft (9) is fixedly connected to the middle of the front and rear ends of the two sets of pressure plates (8). A connecting rod (10) is rotatably sleeved on the four sets of rotating shafts (9). Two sets of connecting shafts (11) are symmetrically fixedly connected to the front and rear ends of the static pressure box body (1). The bottom ends of the four sets of connecting rods (10) are rotatably sleeved on the four sets of connecting shafts (11).

2. The adjustable airflow static pressure box as described in claim 1, characterized in that, A sealing strip (12) is fixedly connected to the edge of the inspection groove (3).

3. A static pressure box with adjustable air volume as described in claim 2, characterized in that, The inspection cover (2) has an observation port in the middle, and an observation window (14) is fixedly installed inside the observation port.

4. A static pressure box with adjustable air volume as described in claim 3, characterized in that, Both sets of pressure plates (8) are fixedly connected to the bottom end with fastening rubber pads (15).

5. A static pressure box with adjustable air volume as described in claim 4, characterized in that, A reinforcing plate (16) is fixedly connected between the outer side of the connecting plate (7) and the top of the pressure plate (8).

6. A static pressure box with adjustable air volume as described in claim 5, characterized in that, The handle (5) has multiple anti-slip ridges (17) integrally formed on both the upper and lower sides.

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