Sealing strip for VDV rotating plate

Abstract

The utility model discloses a sealing strip used on a VDV rotating plate. The sealing strip comprises a self-clamping sealing groove (10) and pressed strips (20) which are arranged on the two sides of the self-clamping sealing groove (10) and have positive and negative pressure functions. The sealing strip disclosed by the utility model has a double-sealing effect; the self-clamping sealing groove has the advantages that the self-clamping sealing groove is mounted on the rotating plate through the clamping edge according to the self-toughness resilience characteristic of a rubber material, and the rotating plate blocking part is additionally arranged, so that no gap exists between the rotating plate and the sealing strip, and the air leakage phenomenon between the rotating plate and the sealing strip is effectively prevented; secondly, the pressed strip adopts an arch-shaped strip, a wind shield blocking part and a contact strip, when the rotating plate touches the wind shield and the sealing strip is pressed, the arch-shaped strip is pressed and has a rebounding effect on the contact strip, so that the contact strip is more tightly attached to the wind shield, wind pressure exists on the reverse side of the contact strip, positive pressure thrust is applied to the contact strip, the contact strip is also more tightly attached to the wind shield, and meanwhile, the rotating plate is not prone to falling off. The wind shield presses the wind shield blocking part, if air leaks, the air can be blocked by the wind shield blocking part, and triple insurance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, in particular to a sealing strip for a VDV rotating plate. Background Art

[0002] VDV is the abbreviation of Variableduct ventilation in English, which means variable air duct ventilation air conditioner. It is a new type of indoor and outdoor air conversion device. Its function is the same as that of a central air conditioner, which is to circulate indoor and outdoor air. It can discharge the dirty air in the room outdoors and input the fresh air outdoors into the room after treatment.

[0003] The existing variable air duct ventilation air conditioner unit mainly includes a housing. Four ventilation openings are arranged at intervals along the circumferential direction on the side of the housing. The four ventilation openings are an outdoor air inlet, an indoor air inlet, a return air outlet, and an exhaust outlet in sequence along the circumferential direction of the housing. The outdoor air inlet and the exhaust outlet are communicated with the outside air. The indoor air inlet is communicated with the room through an air treatment device, and the return air outlet is communicated with the room through a return air duct. A rotating plate for mode switching is rotatably arranged inside the housing. When this kind of air conditioner is working: the driving device drives the rotating plate to rotate around the central rotating shaft, so that a gap is generated between the rotating plate and the first wind baffle, and then a fresh air inlet channel is formed between the rotating plate and the indoor air inlet. At this time, the fresh air coming in from the outdoor air inlet is introduced into the air treatment device through this inlet channel and then enters the room. The temperature of the room is reduced by the fresh air at a low temperature outside, and the size of the gap between the rotating plate and the first wind baffle can be accurately controlled by the driving device. Specifically, according to the temperature difference between the indoor temperature and the set temperature, the size of this gap can be changed, so as to ensure the constancy of the indoor temperature.

[0004] The sealing strip on the rotating plate in the existing air treatment unit generally adopts a single-pressure sealing strip, and its sealing effect is not good. When sending and returning air, it is easy to cause air leakage between the rotating plate and the wind baffle.

[0005] The above problems need to be improved and solved urgently. Content of the Utility Model

[0006] In order to overcome the deficiencies of the prior art, a sealing strip for a VDV rotating plate is proposed.

[0007] The technical solution adopted by the utility model is: to provide a sealing strip for a VDV rotating plate, including a self-clamping sealing groove and pressure-receiving strips with positive and negative pressure functions arranged on both sides of the self-clamping sealing groove.

[0008] Preferably, the self-clamping sealing groove includes a bottom edge, clamping edges arranged at both ends of the bottom edge, and a rotating plate blocking portion arranged on the clamping edges; the self-clamping sealing groove is connected to the pressure-receiving strip through the clamping edges.

[0009] Preferably, the pressure-receiving strip includes an arched strip, a wind deflector blocking portion provided on the arched strip, and contact strips provided on both sides of the wind deflector blocking portion; the arched strip is provided on the clamping edge.

[0010] Preferably, at least one turning plate blocking portion is provided.

[0011] Preferably, three turning plate blocking portions are provided.

[0012] Preferably, at least one wind deflector blocking portion is provided.

[0013] Preferably, five wind deflector blocking portions are provided.

[0014] Advantages of the present utility model: For the sealing strip of the present utility model, a self-clamping sealing groove and a pressure-receiving strip with positive and negative pressure functions are adopted, and the two have a double-sealing effect; firstly, the self-clamping sealing groove, through the resilience characteristic of the rubber material itself, is installed on the turning plate through the clamping edge, and together with the turning plate blocking portion, there is no gap between the turning plate and the sealing strip, effectively preventing the air leakage phenomenon between the turning plate and the sealing strip; secondly, the pressure-receiving strip adopts an arched strip, a wind deflector blocking portion and contact strips. When the turning plate touches the wind deflector and the sealing strip is pressed, the arched strip is pressed, which has a rebounding effect on the contact strips, making the contact strips fit more tightly against the wind deflector. Moreover, there is wind pressure on the reverse side of the contact strips, which has a positive pressure thrust on the contact strips and also makes the contact strips fit more tightly against the wind deflector. At the same time, when the wind deflector presses against the wind deflector blocking portion, if there is air leakage, it will also be blocked by the wind deflector blocking portion, playing a triple insurance role; in summary, the sealing strip has an excellent sealing effect. Description of the Drawings

[0015] Figure 1 It is a schematic cross-sectional structure diagram of a sealing strip for a VDV turning plate according to the present utility model;

[0016] Figure 2 is Figure 1 Schematic diagram of the state of the wind pressure action between the installed turning plate and the wind deflector. Detailed Embodiments

[0017] The following further describes the present utility model with reference to specific drawings.

[0018] Specifically, a sealing strip for a VDV turning plate is provided, which includes a self-clamping sealing groove 10 and a pressure-receiving strip 20 with positive and negative pressure functions provided on both sides of the self-clamping sealing groove 10.

[0019] The sealing strip for a VDV turning plate adopts a silica gel material. Silica gel has a transparent and smooth appearance, is soft and elastic, non-toxic and odorless, has good elasticity, is resistant to high and low temperatures (-80°C - 280°C), and is not easy to age, deform, and is resistant to mild acids and alkalis.

[0020] Such asFigure 1 and Figure 2 As shown, the pressure bar 20 is arranged outside the self-clamping sealing groove 10, and the sealing strip is installed on the rotating plate 30 through the self-clamping sealing groove 10; when the rotating plate 30 touches the wind deflector 40, as shown by the left arrow in Figure 2 As shown, the wind pressure acts on one side of the rotating plate 30, causing the pressure bar 20 to be in extrusion contact with the wind deflector 40.

[0021] Furthermore, the self-clamping sealing groove 10 includes a bottom edge 11, clamping edges 12 arranged at both ends of the bottom edge 11, and a rotating plate blocking portion 13 arranged on the clamping edges 12; the self-clamping sealing groove 10 is connected to the pressure bar 20 through the clamping edges 12.

[0022] As shown in Figure 1 and Figure 2 As shown, the self-clamping sealing groove 10 is fastened to the rotating plate 30 through two clamping edges 12; when the sealing strip is in the natural state, the two clamping edges 12 are parallel to the bottom edge 11 (as shown in Figure 1 As shown), after being installed on the rotating plate 30, the clamping edges 12 are perpendicular to the bottom edge 11 (as shown in Figure 2 As shown). Rubber has the property of toughness and resilience, which can fix the sealing strip tightly on the rotating plate 30, playing a sealing role between the sealing strip and the rotating plate 30.

[0023] A rotating plate blocking portion 13 is arranged inside the clamping edge 12. When the clamping edge 12 clamps on the rotating plate 30, the rotating plate 30 has a strong extrusion effect on the rotating plate blocking portion 13. Rubber itself has good sealing performance, and under the extrusion effect, a better sealing effect can be exerted. Therefore, a double sealing effect is achieved between the rotating plate blocking portion 13 and the rotating plate 30, effectively preventing air leakage between the sealing strip and the rotating plate 30.

[0024] Furthermore, the pressure bar 20 includes an arched bar 21, a wind deflector blocking portion 22 arranged on the arched bar 21, and contact strips 23 arranged on both sides of the wind deflector blocking portion 22; the arched bar 21 is arranged on the clamping edge 12.

[0025] As shown in Figure 1 and Figure 2 As shown, the pressure bar 20 is in extrusion contact with the wind deflector 40 through the arched bar 21 and the contact strips 23.

[0026] As shown by the left arrow wind direction in Figure 2 As shown, the pressure bar 20 has a negative pressure effect on the wind deflector 40. Under the negative pressure effect, the arched bar 21 and the contact strips 23 are in extrusion contact with the wind deflector 40, and the arched bar 21 and the contact strips 23 are extruded towards the rotating plate 30, forming a sealing effect between the pressure bar 20 and the wind deflector 40; at the same time, the arched bar 21 bends, having a positive pressure rebound effect on the contact strips 23, making the contact strips 23 contact the wind deflector 40 more closely, strengthening the sealing effect between the pressure bar 20 and the wind deflector 40.

[0027] As Figure 2 shown by the right arrow wind direction as shown, the wind pressure also exerts a positive pressure on the contact strip 23, which also makes the contact strip 23 and the wind deflector 40 contact more tightly, and further strengthens the sealing effect between the pressure-receiving strip 20 and the wind deflector 40.

[0028] As Figure 2 shown, a wind deflector blocking portion 22 is provided outside the arched strip 21. When the pressure-receiving strip 20 and the wind deflector 40 are in extrusion contact, the wind deflector 40 has a strong extrusion effect on the wind deflector blocking portion 22. The rubber material itself has good sealing performance, and can achieve a better sealing effect under the extrusion effect. Therefore, a double sealing effect is achieved between the wind deflector blocking portion 22 and the wind deflector 40.

[0029] Furthermore, at least one turning plate blocking portion 13 is provided.

[0030] Furthermore, three turning plate blocking portions 13 are provided.

[0031] As Figure 1 and Figure 2 shown, when more than two turning plate blocking portions 13 are provided, a groove is formed between adjacent two turning plate blocking portions 13, which can also be regarded as an arched pressure-reducing structure, enabling the sealing strip to withstand greater pressure.

[0032] Furthermore, at least one wind deflector blocking portion 22 is provided.

[0033] Furthermore, five wind deflector blocking portions 22 are provided.

[0034] As Figure 1 and Figure 2 shown, when more than two wind deflector blocking portions 22 are provided, a groove is formed between adjacent two wind deflector blocking portions 22, which can also be regarded as an arched pressure-reducing structure, enabling the sealing strip to withstand greater pressure.

[0035] The foregoing shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A sealing strip for a VDV rotating plate, characterized in that: It comprises a self-clamping sealing groove (10) and pressure-bearing strips (20) with positive and negative pressure functions arranged on both sides of the self-clamping sealing groove (10).

2. The sealing strip for a VDV rotating plate according to claim 1, characterized in that: The self-clamping sealing groove (10) comprises a bottom edge (11), clamping edges (12) arranged at both ends of the bottom edge (11), and a rotating plate blocking portion (13) arranged on the clamping edges (12); the self-clamping sealing groove (10) is connected to the pressure strip (20) via the clamping edges (12).

3. The sealing strip for a VDV rotating plate according to claim 2, characterized in that: The pressure strip (20) comprises an arched strip (21), a windshield blocking portion (22) arranged on the arched strip (21), and contact strips (23) arranged on both sides of the windshield blocking portion (22); the arched strip (21) is arranged on the clamping edge (12).

4. The sealing strip for a VDV rotating plate according to claim 3, characterized in that: The rotating plate blocking portion (13) is provided with at least one.

5. The sealing strip for a VDV rotating plate according to claim 4, characterized in that: The rotating plate blocking parts (13) are provided with three.

6. The sealing strip for a VDV rotating plate according to claim 5, characterized in that: The wind deflector blocking portion (22) is provided with at least one.

7. The sealing strip for a VDV rotating plate according to claim 6, characterized in that: The windshield blocking parts (22) are provided with five.

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