Warming fan

Abstract

The utility model discloses a warming fan, which relates to the technical field of ventilators and comprises a warming fan body, two ends of the warming fan body are connected with sliding portions in a sliding mode, one side of the warming fan body is provided with an air pipe connecting portion connected with the sliding portions, and the end portion of each sliding portion is provided with at least two arc-shaped protrusions. Inner arc-shaped protrusions which are the same as the arc-shaped protrusions in number and are fixed in a threaded mode are arranged on the inner wall of one end of the air pipe connecting part, a positioning opening and a sliding groove are reserved between the two arc-shaped protrusions and the inner arc-shaped protrusions on the same side respectively, and an arc-shaped clamping block clamped to the positioning opening is arranged in the axial direction of the sliding groove in a sliding mode. After the arc-shaped protrusion is inserted into the sliding groove, the arc-shaped protrusion is in threaded connection with the inner arc-shaped protrusion through rotation, and finally the arc-shaped clamping block slides into the positioning opening to prevent relative rotation between the arc-shaped protrusion and the inner arc-shaped protrusion, so that the warm-air ventilator is rapidly installed, and the problems that the warm-air ventilator flange and the bolt thereof are long in installation time and not convenient to install are solved. And maintenance and replacement are not easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilators, in particular to a heating and ventilation ventilator. Background Art

[0002] A HVAC fan is a device used for indoor air circulation and temperature regulation. It drives the impeller to rotate through an electric motor to generate airflow, draws indoor air into the machine, and then discharges it after heating or cooling. The HVAC fan can adjust the temperature and humidity of the air as needed, thereby achieving the effect of indoor temperature regulation, air purification and ventilation. It is widely used in commercial buildings, offices, factories, hospitals, schools and other places to provide a comfortable environment indoors.

[0003] In the prior art, the interface installation of the HVAC fan is generally achieved through a flange and its bolts. The installation of the flange and its bolts requires steps such as alignment and fixing, and the installation time is relatively long. At the same time, after the flange and its bolts are installed, if maintenance and replacement are required, the bolts need to be removed, which increases the difficulty of maintenance and is inconvenient to use in the factory ventilation system. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a heating ventilator, which solves the problem that the flange and bolts of the heating ventilator need a long installation time and are difficult to maintain and replace.

[0005] To achieve the above-mentioned purpose, according to an embodiment of the utility model, a heating ventilation fan is proposed, including 1. A heating ventilation fan, characterized in that it includes a heating ventilation fan body, both ends of the heating ventilation fan body are slidably connected with sliding parts, and one side is provided with a duct connecting part connected to the sliding part, at least two arc-shaped protrusions are provided at the end of the sliding part, and the inner wall of one end of the duct connecting part is provided with inner arc-shaped protrusions with the same number as the arc-shaped protrusions and fixed with threads, positioning openings and sliding grooves are respectively reserved between the two arc-shaped protrusions on the same side and the inner arc-shaped protrusions, and the sliding groove has an arc-shaped clamping block that slides in the axial direction of the sliding groove and is clamped in the positioning opening.

[0006] Preferably, an outer end surface of the arc-shaped protrusion is provided with an external thread groove, and an inner thread groove threadably matched with the external thread groove is provided on the inner arc-shaped protrusion.

[0007] Preferably, the air duct connecting portion is hollow and has an annular outer edge at one end.

[0008] Preferably, the arc length of the positioning opening is greater than the arc length of the arc-shaped protrusion.

[0009] Preferably, both ends of the HVAC fan body are provided with blocking edges, and the sliding portion is provided with an anti-slip edge blocked by the blocking edges.

[0010] Preferably, a reset member located at the air duct connection portion is provided at one end of the arc-shaped clamping block away from the positioning opening.

[0011] Preferably, the reset member comprises an annular plate sleeved on the outer wall of the air duct connecting portion, and a sliding rod fixed between the arc-shaped clamping block and the annular plate and penetrating the annular outer edge.

[0012] Preferably, the reset member further comprises a spring which is sleeved on the outside of the sliding rod and located between the annular plate and the air duct connecting portion.

[0013] Preferably, the shape of the arc-shaped block is the same as the shape of the positioning opening.

[0014] Preferably, the outer wall of the sliding portion is provided with a groove for placing the arc-shaped clamping block.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model inserts the arc-shaped protrusion into the sliding groove, and then realizes the threaded connection with the inner arc-shaped protrusion by rotation, and finally slides into the positioning port through the arc-shaped clamping block to prevent the arc-shaped protrusion and the inner arc-shaped protrusion from rotating relative to each other, thereby quickly installing the heating and ventilation fan. In addition, the two adjustment modes of the air duct connection part being threadedly connected to the external air duct and the sliding part being able to slide on the outer wall of the air duct can be used to install the heating and ventilation fan according to different reserved installation spaces, thereby increasing its installation adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a cross-sectional structural diagram of the main body of the heating and ventilation fan of the utility model;

[0019] Figure 3 This is a structural diagram of the air duct connection portion of the utility model;

[0020] Figure 4 It is a structural diagram of the arc-shaped clamping block, the sliding rod and the annular plate of the utility model.

[0021] The numbers in the figure represent: 1. HVAC fan body; 10. retaining edge; 2. sliding part; 20. arc-shaped protrusion; 200. external thread groove; 21. positioning port; 22. anti-slip edge; 3. air duct connection part; 30. internal arc-shaped protrusion; 300. internal thread groove; 31. sliding groove; 32. annular outer edge; 4. arc-shaped block; 5. sliding rod; 6. annular plate; 7. spring. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0023] Reference Figure 1-Figure 4 A heating and ventilation fan comprises a heating and ventilation fan body 1, both ends of the heating and ventilation fan body 1 are slidably connected with sliding parts 2, and one side of the heating and ventilation fan body 1 is provided with a duct connection part 3 connected to the sliding part 2. Among them, the duct connection part 3 is used to connect an external duct.

[0024] Reference Figure 1 At least two arc-shaped protrusions 20 are provided at the end of the sliding part 2, and the outer end surface of the arc-shaped protrusion 20 is provided with an external thread groove 200; correspondingly, the inner wall of one end of the air duct connecting part 3 is provided with an inner arc-shaped protrusion 30 with the same number as the arc-shaped protrusion 20, and the inner arc-shaped protrusion 30 is provided with an internal thread groove 300 threadably matched with the external thread groove 200. The sliding part 2 and the air duct connecting part 3 are locked together through the threaded connection between the external thread groove 200 and the internal thread groove 300.

[0025] As an implementation method of this embodiment, refer to Figure 1 A positioning opening 21 is reserved between the two arc-shaped protrusions 20 on the same side; correspondingly, a sliding groove 31 is reserved between the two inner arc-shaped protrusions 30, and an arc-shaped clamping block 4 that is clamped in the positioning opening 21 slides along the axial direction of the sliding groove 31.

[0026] In addition, the present embodiment also discloses the structural composition of the air duct connection part 3, which is hollow and has an annular outer edge 32 at one end, and a connecting thread is provided at the other end of the air duct connection part 3, through which the external air duct is connected, wherein the connecting thread direction is preferably opposite to the connecting direction of the external thread groove 200 and the internal thread groove 300, so as to ensure the stability of the air duct connection part 3 between the HVAC fan body 1 and the external air duct. It should also be added that the threaded connection between the air duct connection part 3 and the external air duct is also helpful in adjusting the distance between the HVAC fan body 1 and the external air duct, thereby helping to ensure the installation of the HVAC fan body 1.

[0027] Based on the structural arrangement of the sliding portion 2 and the air duct connecting portion 3, the present embodiment discloses an installation process for facilitating the HVAC fan body 1 as follows: first, the air duct connecting portion 3 is installed on the opposite ends of the two air ducts by means of threads, and the reserved position for the installation of the HVAC fan body 1 can be adjusted during the process; then the sliding portion 2 and the air duct connecting portion 3 are installed, and the installation process is as follows: first, the arc-shaped protrusion 20 is extended into the sliding groove 31 to the end, and then the arc-shaped protrusion 20 is screwed toward the inner arc-shaped protrusion 30, so that the threads between the outer thread groove 200 and the inner thread groove 300 are engaged, until the arc-shaped protrusion 20 and the inner arc-shaped protrusion 30 overlap; finally, the arc-shaped clamping block 4 slides out of the sliding groove 31 and extends into the positioning port 21, thereby preventing the arc-shaped protrusion 20 and the inner arc-shaped protrusion 30 from rotating relative to each other, thereby ensuring the stability of the installation of the HVAC fan body 1.

[0028] In this embodiment, in order to ensure the accuracy of the arc-shaped protrusion 20 being screwed toward the inward arc-shaped protrusion 30, the arc length of the positioning opening 21 is greater than the arc length of the arc-shaped protrusion 20. Since the sliding groove 31 is aligned with the positioning opening 21, it is convenient for the arc-shaped protrusion 20 to accurately enter the sliding groove 31.

[0029] In addition, refer to Figure 1 and Figure 2 In order to facilitate the sliding part 2 to slide stably and prevent slipping on the outer surface of the HVAC fan body 1, both ends of the HVAC fan body 1 are provided with retaining edges 10, the sliding part 2 is annular in structure, and an anti-slip edge 22 is provided in the port close to the HVAC fan body 1, and the inner wall of the anti-slip edge 22 fits the outer wall of the HVAC fan body 1.

[0030] As an implementation method of this embodiment, the arc-shaped block 4 slides in the sliding groove 31 and is inserted into the positioning opening 21. Figure 1 , Figure 3 and Figure 4 A reset piece is provided at one end of the arc-shaped block 4 away from the positioning opening 21, and the reset piece is installed on the air duct connecting portion 3. It should be supplemented that the shape of the arc-shaped block 4 is the same as that of the positioning opening 21, and the radial thickness of the arc-shaped block 4 is greater than the radial depth of the sliding groove 31, and the arc-shaped block 4 extends into the positioning opening 21 aligned with the sliding groove 31.

[0031] Reference Figure 1 and Figure 4 The reset member includes a sliding rod 5, an annular plate 6 and a spring 7. The sliding rod 5 is fixed to one side of the arc-shaped block 4, penetrates through and slides relative to the annular outer edge 32, wherein the annular outer edge 32 is provided with a sliding opening corresponding to the sliding rod 5. The annular plate 6 is sleeved on the outer wall of the air duct connecting portion 3, and one end of the sliding rod 5 away from the arc-shaped block 4 is fixed to the annular plate 6.

[0032] Reference Figure 1The spring 7 is sleeved on the outer wall of the sliding rod 5 and is located between the annular plate 6 and the air duct connecting part 3, or the two ends of the spring 7 are fixedly connected between the annular plate 6 and the air duct connecting part 3. Under the action of the spring 7, the movement of the arc block 4 in the sliding groove 31 is controlled by pulling or loosening the annular plate 6.

[0033] As another installation method of this application, Figure 1 , Figure 3 and Figure 4 As shown, the outer wall of the sliding part 2 is provided with a groove for placing the arc-shaped block 4, and the arc-shaped block 4 can rotate along the groove. During installation, first, the threads of the air duct connecting part 3 are installed on the opposite ends of the two air ducts. In this process, the reserved position for the installation of the HVAC fan body 1 can be adjusted; then the sliding part 2 and the air duct connecting part 3 are installed. The installation process is as follows: first, the positioning port 21 is aligned with the sliding slot 31, and the arc-shaped block 4 is driven to move to the annular groove outside the sliding part 2 through the sliding rod 5 by pushing the annular plate 6. The spring 7 stores energy after being compressed, and then the arc-shaped protrusion 20 is screwed toward the inner arc-shaped protrusion 30, so that the threads between the outer thread groove 200 and the inner thread groove 300 are engaged, until the arc-shaped protrusion 20 and the inner arc-shaped protrusion 30 overlap, and the annular plate 6 is loosened. The spring 7 drives the arc-shaped block 4 to move to the positioning port 21 through its own elastic force, thereby preventing the arc-shaped protrusion 20 and the inner arc-shaped protrusion 30 from rotating relative to each other, thereby ensuring the stability of the installation of the HVAC fan body 1.

[0034] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A heating fan, characterized in that: include: A heating and ventilation fan body (1), wherein both ends of the heating and ventilation fan body (1) are slidably connected with sliding parts (2), and one side is provided with a duct connection part (3) connected to the sliding part (2), at least two arc-shaped protrusions (20) are provided at the end of the sliding part (2), and the inner wall of one end of the duct connection part (3) is provided with inner arc-shaped protrusions (30) that are equal in number to the arc-shaped protrusions (20) and are fixed by threads, and positioning openings (21) and sliding grooves (31) are respectively reserved between the two arc-shaped protrusions (20) and the inner arc-shaped protrusions (30) on the same side, and an arc-shaped clamping block (4) that is slidably engaged with the positioning opening (21) in the axial direction of the sliding groove (31).

2. The heating fan according to claim 1, characterized in that: The outer end surface of the arc-shaped protrusion (20) is provided with an external thread groove (200), and the inner arc-shaped protrusion (30) is provided with an internal thread groove (300) threadably matched with the external thread groove (200).

3. The heating fan according to claim 1, characterized in that: The air duct connecting portion (3) is hollow and has an annular outer edge (32) at one end.

4. The heating fan according to claim 1, characterized in that: The arc length of the positioning opening (21) is greater than the arc length of the arc-shaped protrusion (20).

5. The heating fan according to claim 1, characterized in that: Both ends of the heating and ventilation fan body (1) are provided with blocking edges (10), and the sliding part (2) is provided with an anti-slip edge (22) blocked by the blocking edge (10).

6. The heating fan according to claim 3, characterized in that: One end of the arc-shaped clamping block (4) away from the positioning opening (21) is provided with a reset piece located at the air duct connecting portion (3).

7. The heating fan according to claim 6, characterized in that: The reset member comprises an annular plate (6) sleeved on the outer wall of the air duct connecting portion (3), and a sliding rod (5) fixed between the arc-shaped clamping block (4) and the annular plate (6) and penetrating the annular outer edge (32).

8. The heating fan according to claim 7, characterized in that: The reset member also includes a spring (7) which is sleeved on the outside of the sliding rod (5) and located between the annular plate (6) and the air duct connecting portion (3).

9. The heating fan according to claim 1, characterized in that: The shape of the arc-shaped clamping block (4) is the same as the shape of the positioning opening (21).

10. The heating fan according to claim 1, characterized in that: The outer wall of the sliding part (2) is provided with a groove for placing the arc-shaped clamping block (4).

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