Heating and ventilation ventilation valve blade

Abstract

The utility model relates to the technical field of heating ventilation valves, in particular to a heating ventilation valve blade which comprises a center plate, shaft rods are arranged on the two sides of the center plate, clamping grooves are symmetrically formed in the front face and the back face of the center plate, external plates are installed at the positions of the clamping grooves, and installation holes are formed in the clamping grooves and the external plates in a penetrating mode. And the central plate and the external plate are bolted and fixed at the mounting holes through bolts and nuts. The central plate and the external plates are separately designed, and the external plates with different widths are mounted, so that the number of the blades is controlled, different flexible ventilation effects are achieved, the bolted bolts are limited by the clamping grooves, and the nuts are convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of heating and ventilation valves, in particular to a heating and ventilation valve blade. Background Art

[0002] The blades of the ventilation valve are divided into single blades and multiple blades. Using different numbers of blades can achieve flexible ventilation and fierce ventilation. Since the blades are integrally formed, the number of blades is generally fixed under the same frame, so the flexible ventilation effect is similar. Utility Model Content

[0003] The utility model aims to provide a HVAC valve blade to solve the problem in the above background technology that under the same framework, the number of blades is generally fixed, so the flexible ventilation effects are similar.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A HVAC valve blade comprises a central plate, shafts are provided on both sides of the central plate, slots are symmetrically provided on the front and back sides of the central plate, an external plate is installed at the slot position, mounting holes are provided through the slot and the external plate, and the central plate and the external plate are bolted and fixed at the mounting hole position by bolts and nuts.

[0006] As a further description of the above technical solution:

[0007] The external plate is provided with a convex body which fits with the card slot.

[0008] As a further description of the above technical solution:

[0009] The mounting hole is arranged at the convex body position.

[0010] As a further description of the above technical solution:

[0011] One side surface of the external plate is arranged flush with the outer side surface of the central plate, and the other side surface of the external plate is arranged flush with the slot wall of the card slot.

[0012] As a further description of the above technical solution:

[0013] The head of the bolt is located at the slot position.

[0014] As a further description of the above technical solution:

[0015] The external plates are arranged in opposite directions or on the same side.

[0016] Compared with the prior art, the utility model provides a HVAC valve blade, which has the following beneficial effects:

[0017] 1. In the utility model, by separately designing the central plate and the external plate, and by installing external plates of different widths, the number of blades can be controlled, thereby obtaining different flexible ventilation effects;

[0018] 2. In the present invention, the clamping groove is used to limit the bolts of the bolted connection, so as to facilitate the assembly of the nuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.

[0021] Legend:

[0022] 1. Center plate; 2. Axis rod; 3. External plate; 4. Mounting hole. DETAILED DESCRIPTION

[0023] 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.

[0024] Example:

[0025] See also Figure 1-Figure 2 The utility model provides a HVAC valve blade, including a center plate 1, shafts 2 are provided on both sides of the center plate 1, card slots are symmetrically provided on the front and back sides of the center plate 1, an external plate 3 is installed at the card slot position, and mounting holes 4 are provided through the card slot and the external plate 3, and the center plate 1 and the external plate 3 are bolted and fixed at the mounting hole 4 position by bolts and nuts.

[0026] Specifically, Figure 1 As shown, a convex body that fits into the slot is provided on the external plate 3 , and a mounting hole 4 is opened at the position of the convex body to facilitate fixing the external plate 3 .

[0027] Specifically, Figure 1 As shown, one side of the external plate 3 is flush with the outer side of the central plate 1, and the other side of the external plate 3 is flush with the slot wall of the slot, leaving space for installing bolts.

[0028] Specifically, Figure 2 As shown, the protruding head of the bolt is located at the slot position, and the slot limits the protruding head of the bolt to prevent the bolt from rotating when bolted and fixed.

[0029] Specifically, the external plates 3 are arranged in opposite directions or on the same side.

[0030] Working principle:

[0031] By installing external plates 3 of different widths at the slot position of the central plate 1, the overall number of blades can be controlled, and then bolts are installed at the slot position. The slot is used to limit the rotation of the bolt head, making it convenient to install nuts on the other side of the external plate 3.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A HVAC valve blade, comprising a center plate (1), characterized in that: Axles (2) are provided on both sides of the center plate (1); slots are symmetrically provided on the front and back sides of the center plate (1); an external plate (3) is installed at the slot position; mounting holes (4) are provided through the slot and the external plate (3); the center plate (1) and the external plate (3) are bolted and fixed at the mounting holes (4) by bolts and nuts.

2. A HVAC valve blade according to claim 1, characterized in that: The external plate (3) is provided with a convex body which fits with the card slot.

3. A HVAC valve blade according to claim 2, characterized in that: The mounting hole (4) is arranged at the convex position.

4. The HVAC valve blade according to claim 1, characterized in that: One side surface of the external plate (3) is arranged flush with the outer side surface of the central plate (1), and the other side surface of the external plate (3) is arranged flush with the slot wall of the card slot.

5. The HVAC valve blade according to claim 1, characterized in that: The head of the bolt is located at the slot position.

6. The HVAC valve blade according to claim 1, characterized in that: The external plates (3) are arranged in opposite directions or on the same side.

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