Connection conversion structure for actuator air door output shaft

Abstract

The utility model discloses a connection switching structure for an actuator air door output shaft, which comprises an air door shaft, an actuator and an output shaft fixed in the actuator in a penetrating manner, the air door shaft is connected with the actuator through the output shaft, and the connection switching structure is characterized by further comprising a connection structure connected with the output shaft in a matched manner, the connecting structure comprises a conversion end connected with the output shaft in a matched mode and a fixing end used for fixing the air door shaft. The air door shaft is reasonable in structural design, the connecting structure is designed, the air door shaft is connected with the output shaft of the actuator through the connecting structure, the situation that the air door shaft cannot be used due to the fact that the size and the model of the output shaft are not matched with the size and the model of the air door shaft is avoided, and use limitation of products is reduced.

Description

Technical Field

[0001] The utility model relates to the field of damper actuators, in particular to a connection conversion structure for an output shaft of a damper of an actuator. Background Art

[0002] Air valves are indispensable central air-conditioning terminal accessories in ventilation, air conditioning and air purification projects of industrial plants and civil buildings. They are generally used in air-conditioning and ventilation system pipes to adjust the air volume of branch pipes, and can also be used for mixing and adjusting fresh air and return air.

[0003] The actuator is an essential and important part of the automatic control system. Its function is to receive the control signal sent by the controller, change the size of the controlled medium, and thus maintain the controlled variable at the required value or within a certain range. The damper actuator mainly drives the gear to reduce speed through a micro motor, and then drives the output gear to rotate, outputting a certain speed and torque to drive the rocker arm.

[0004] In the prior art, there are two types of damper shafts: square shafts and round shafts. The output shafts of fire and smoke exhaust actuators all have square shaft holes. Therefore, if the damper shaft is a round shaft, it cannot match the output shaft of the actuator and cannot be used. It must be replaced with a spring return actuator, which has great limitations. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a connection conversion structure for an actuator damper output shaft in view of the current status of the prior art.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a connection conversion structure for the actuator damper output shaft, including a damper shaft, an actuator and an output shaft fixed through the actuator, the damper shaft is connected to the actuator through the output shaft, and also includes a connection structure connected to the output shaft, the connection structure includes a conversion end connected to the output shaft and a fixed end for fixing the damper shaft.

[0007] Preferably, the conversion end comprises a connecting shaft having a size matching that of the output shaft, and an expansion unit for fixing the conversion end and the output shaft is provided on the connecting shaft.

[0008] Preferably, the expansion unit comprises an expander arranged on the connecting shaft, and the expander and the connecting shaft are connected by a fixing screw.

[0009] Preferably, the fixed end comprises an "L"-shaped fixing plate, and the end of the connecting shaft away from the output shaft is plugged and fixed on the fixing plate.

[0010] Preferably, the fixed end also includes a U-shaped bolt fixed to the fixed plate by tightening a nut, and both ends of the U-shaped bolt are fixed to the upper surface of the fixed plate by nuts; a first fixing clamp for clamping the damper shaft is fixed inside the U-shaped bolt, and the top surface of the first fixing clamp is in contact with the inner wall of the fixed plate.

[0011] Preferably, both ends of the first fixing clamp are provided with clamping grooves for cooperating with U-shaped bolts for fixing.

[0012] Preferably, the first fixing clip is further provided with a second fixing clip which is plugged into and matched with the first fixing clip, and the second fixing clip is detachably arranged at the bottom of the first fixing clip.

[0013] Compared with the prior art, the advantages of the present invention are: by designing a connecting structure, the damper shaft is connected to the output shaft of the actuator through the connecting structure, avoiding the situation where the damper shaft cannot be used due to the mismatch between the output shaft and the damper shaft size and model, and reducing the limitations of product use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the utility model.

[0018] Figure numerals: 1. damper shaft; 2. actuator; 3. output shaft; 4. connection structure; 5. conversion end; 51. connecting shaft; 52. expander; 53. fixing screw; 6. fixed end; 61. fixing plate; 62. nut; 63. U-bolt; 7. first fixing clip; 71. clamping groove; 8. second fixing clip. DETAILED DESCRIPTION

[0019] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0020] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] Moreover, some of the above-mentioned terms may be used to express other meanings besides indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain circumstances. A person skilled in the art may understand the specific meanings of these terms in the present utility model according to the specific circumstances.

[0022] In addition, the terms "install", "set", "provided with", "connect", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. The connection methods involved in this article are prior arts, without any improvement, and are all common knowledge of those skilled in the art. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0023] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model. Example 1

[0024] like Figures 1 to 3 As shown, the utility model provides a connection conversion structure for an actuator damper output shaft, comprising a damper shaft 1, an actuator 2 and an output shaft 3 penetrating and fixed in the actuator 2, the damper shaft 1 is connected to the actuator 2 via the output shaft 3; specifically, it also includes a connection structure 4 that cooperates with the output shaft 3, the connection structure 4 includes a conversion end 5 that cooperates with the output shaft 3 and a fixed end 6 for fixing the damper shaft 1.

[0025] The conversion end 5 includes a connecting shaft 51 whose size matches that of the output shaft 3 , and an expansion unit for fixing the conversion end 5 and the output shaft 3 is disposed on the connecting shaft 51 .

[0026] The expansion unit includes an expander 52 disposed on a connecting shaft 51 ; specifically, the expander 52 and the connecting shaft 51 are connected via a fixing screw 53 .

[0027] The fixed end 6 includes an “L”-shaped fixed plate 61 , and one end of the connecting shaft 51 away from the expander 52 is plugged and fixed on the fixed plate 61 .

[0028] The fixed end 6 also includes a U-shaped bolt 63 which is tightened and fixed to the fixed plate 61 by a nut 62, and both ends of the U-shaped bolt 63 are fixed to the upper surface of the fixed plate 61 by nuts 62; specifically, a first fixing clamp 7 for clamping the damper shaft 1 is fixed inside the U-shaped bolt 63, and the top surface of the first fixing clamp 7 is in contact with the inner wall of the fixed plate 61.

[0029] The first fixing clamp 7 has two ends provided with clamping grooves 71 for cooperating with the U-shaped bolts 63 for fixing.

[0030] The working principle of the utility model is as follows: the conversion end 5 of the connection structure 4 is inserted into the output shaft 3 of the actuator 2. Since the cavity inside the output shaft 3 connected to the conversion end 5 is connected at both ends, a fixing screw 53 is inserted from the end of the output shaft 3 away from the conversion end 5 to tighten the screw. The expander 52 uses its own material properties to achieve an expansion effect under the action of external force. Therefore, the expander 52 expands radially, that is, the diameter of the expander 52 increases, until the outer edge of the expander 52 contacts and is stuck with the inner wall of the output shaft 3, so that the conversion end 5 and the output shaft 3 are fixed by clamping.

[0031] One end of the damper shaft 1 is connected to the connecting shaft 51 through a U-shaped bolt 63, and the nuts 62 at both ends of the U-shaped bolt 63 are tightened so that the U-shaped bolt 63 and the first fixing clamp 7 work together to clamp the damper shaft 1, so that damper shafts 1 of different sizes and models can be connected to the output shaft 3 through the connecting structure 4.

[0032] The advantage of the utility model is that by designing the connection structure 4, the damper shaft 1 is connected to the output shaft 3 of the actuator 2 through the connection structure 4, avoiding the situation where the damper shaft 1 cannot be used due to the mismatch between the size and model of the output shaft 3 and the damper shaft 1, and reducing the limitation of product use. Example 2

[0033] like Figure 4As shown, different from the embodiment 1, in this embodiment, the first fixing clip 7 is further provided with a second fixing clip 8 plugged with the first fixing clip 7, and the second fixing clip 8 is detachably arranged at the bottom of the first fixing clip 7; the second fixing clip 8 is plugged under the first fixing clip 7, which is suitable for connecting the damper shaft 1 with a smaller cross-sectional area. The other structures are the same as those of the embodiment 1.

[0034] In the description of this specification, reference is made to the terms "one embodiment", "some embodiments", "examples", "specific examples", etc.

[0035] The description of "example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0036] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0037] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scopes based on the ideas of the present invention. The content of this specification should not be understood as a limitation on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A connection conversion structure for an actuator damper output shaft, comprising a damper shaft, an actuator and an output shaft penetrating and fixed in the actuator, wherein the damper shaft is connected to the actuator via the output shaft, and characterized in that: It also includes a connecting structure that is connected to the output shaft, and the connecting structure includes a conversion end that is connected to the output shaft and a fixed end for fixing the damper shaft.

2. A connection conversion structure for an actuator damper output shaft according to claim 1, characterized in that: The conversion end comprises a connecting shaft matching the size of the output shaft, and an expansion unit for fixing the conversion end and the output shaft is arranged on the connecting shaft.

3. A connection conversion structure for an actuator damper output shaft according to claim 2, characterized in that: The expansion unit comprises an expander arranged on the connecting shaft, and the expander and the connecting shaft are connected by a fixing screw.

4. The connection conversion structure for the output shaft of the actuator damper according to claim 2, characterized in that: The fixed end includes an "L"-shaped fixing plate, and one end of the connecting shaft away from the output shaft is plugged and fixed on the fixing plate.

5. The connection conversion structure for the output shaft of the actuator damper according to claim 4, characterized in that: The fixed end also includes a U-shaped bolt fixed to the fixed plate by tightening a nut, and both ends of the U-shaped bolt are fixed to the upper surface of the fixed plate by nuts; a first fixing clamp for clamping the damper shaft is fixed inside the U-shaped bolt, and the top surface of the first fixing clamp is in contact with the inner wall of the fixed plate.

6. A connection conversion structure for an actuator damper output shaft according to claim 5, characterized in that: Both ends of the first fixing clamp are provided with clamping grooves which cooperate with the U-shaped bolts for fixing.

7. The connection conversion structure for the output shaft of the actuator damper according to claim 5, characterized in that: The first fixing clip is also provided with a second fixing clip which is plugged and matched with the first fixing clip. The second fixing clip is detachably arranged at the bottom of the first fixing clip.

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