Novel electric heating actuator

Abstract

The novel electric heating actuator comprises a shell, a base, an ejector rod, a paraffin propeller, an ejector rod connecting seat and a knob, the base is arranged at the bottom of the shell, the knob is arranged at the top of the shell, the paraffin propeller and the ejector rod are both arranged in the base, the ejector rod is located below the paraffin propeller, the ejector rod connecting seat is arranged in the shell, and the ejector rod connecting seat is arranged in the shell. The upper end of the ejector rod connecting seat is connected with the knob, and the lower end is connected with the ejector rod. The actuator has the advantages that when the circuit structure breaks down, switching of the normally-open state and the normally-closed state of the actuator can be completed by manually operating the knob, the actuator does not need to be disassembled in the operation process, and operation can be completed according to needs even if related professional knowledge is not provided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of heating ventilation air conditioning, specifically relates to a novel electric heating actuator. BACKGROUND

[0002] Electric heating actuator is a kind of automation device that is driven by heating paraffin propellant, commonly known as hot motor to control the up and down action of driver, and controls the opening and closing of valve by up and down action valve stem, mainly used for temperature regulation of floor heating system or central air conditioning. Its core components include hot motor, spring reset device, sensor and control circuit, and the precise control of fluid medium is realized by receiving temperature controller signal. In floor heating system, it is usually installed on the branch valve of distribution water heater, and according to the automatic opening and closing of heating waterway according to the change of room temperature, the temperature control of subroom or sublayer is realized. Compared with traditional manual adjustment, electric heating actuator has the characteristics of zero noise, low power consumption and small size, and can form an intelligent temperature control system with temperature controller, for example, when the room temperature reaches the set value, the waterway of the corresponding area is automatically closed to save energy.

[0003] How to improve the stability of electric heating actuator, service life and fault response is the direction of continuous improvement and optimization for the technical personnel in the field. CONTENT OF THE UTILITY MODEL

[0004] To solve the problems and deficiencies in the prior art, the utility model aims at providing a novel electric heating actuator, which can simplify the assembly process, has good stability, and also provides an emergency handling manual operation structure.

[0005] A novel electric heating actuator, including shell, base, top rod, paraffin propeller, top rod connecting seat and knob, the base is arranged at the bottom of the shell, the knob is arranged at the top of the shell, the paraffin propeller and the top rod are arranged in the base, the top rod is below the paraffin propeller, the top rod connecting seat is arranged in the shell, the top rod connecting seat upper end is connected with the knob, and the top rod connecting seat lower end is connected with the top rod.

[0006] Further, the base includes upper cavity and lower cavity, the paraffin propeller is arranged in the upper cavity, the top rod is arranged in the upper cavity, three hooks are arranged on the top rod, the three hooks penetrate through the upper part of the lower cavity, the surface of the top rod connecting seat is provided with first clamping groove corresponding to the hook, and the hook is buckled with the first clamping groove.

[0007] Further, the paraffin propeller includes heat-sensitive part, propeller shell and propeller thimble, the heat-sensitive part is arranged at the bottom of the upper cavity, the propeller shell is arranged in the upper cavity, one end of the propeller thimble is inserted into the propeller shell, and the other end abuts against the inner wall of the top rod connecting seat.

[0008] Further, the base outer contour surface is also provided with a second clamping groove, the shell bottom edge is provided with a first clamping structure, the first clamping structure is matched with the second clamping groove, and the assembly between the base and the shell is realized.

[0009] Further, the shell top is provided with an opening, the upper end of the top rod connecting seat is provided with a boss structure for being connected with the knob, the upper edge of the boss structure is provided with a second clamping structure, and the inner wall of the knob is provided with a third clamping groove corresponding to the second clamping structure.

[0010] Further, three convex column structures are further arranged in the knob, and three inclined surfaces are arranged at the opening edges of the shell top; the convex column structures are matched with the inclined surfaces during rotation, and drive the top rod connecting seat to move up and down.

[0011] Further, the inclined surface is two-section type, and the terminal ends of the two-section inclined surfaces are provided with planes.

[0012] The novel electric heating actuator has the advantages that:

[0013] 1. The assembly of the internal parts of the actuator is completed through the clamping structure, the assembly is convenient, the production cost is reduced, and the production efficiency is improved.

[0014] 2. When the circuit structure fails, the normally open and normally closed state switching of the actuator can be completed through manual operation of the knob, and the operation process does not need to disassemble the actuator, and even without relevant professional knowledge, the operation can be completed according to the needs. DRAWINGS

[0015] Figure 1 It is an external structure schematic view of the novel electric heating actuator.

[0016] Figure 2 It is a structure schematic view of the novel electric heating actuator (not containing the knob).

[0017] Figure 3 It is a structure schematic view of the novel electric heating actuator (not containing the shell).

[0018] Figure 4 It is a structure schematic view of the novel electric heating actuator (not containing the top rod connecting seat).

[0019] Figure 5 It is an internal structure schematic view of the top rod connecting seat in the novel electric heating actuator.

[0020] Figure 6 It is a structure schematic view of the knob in the novel electric heating actuator.

[0021] Figure 7 It is a cross-sectional structure schematic view of the knob in the novel electric heating actuator.

[0022] Reference signs: knob 1, shell 2, base 3, inclined surface 4, boss structure 5, second buckle structure 6, second clamping groove 7, hook foot 8, paraffin pusher 9, top rod connecting seat 10, top rod 11, convex column structure 12, third clamping groove 13. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] A novel electric heating actuator comprises a shell, a base, a top rod, a paraffin pusher, a top rod connecting seat and a knob. The base is arranged at the bottom of the shell, the knob is arranged at the top of the shell, the paraffin pusher and the top rod are arranged in the base, the top rod is below the paraffin pusher, the top rod connecting seat is arranged in the shell, the upper end of the top rod connecting seat is connected with the knob, and the lower end of the top rod connecting seat is connected with the top rod. The base comprises an upper cavity and a lower cavity. The paraffin pusher is arranged in the upper cavity, and the top rod is arranged in the upper cavity. Three hook feet are arranged on the top rod, and the three hook feet penetrate through the upper part of the lower cavity. The surface of the top rod connecting seat is provided with a first clamping groove corresponding to the hook feet, and the hook feet are buckled with the first clamping groove. The paraffin pusher comprises a heat-sensitive part, a pusher shell and a pusher thimble. The heat-sensitive part is arranged at the bottom of the upper cavity, the pusher shell is arranged in the upper cavity, one end of the pusher thimble is inserted into the pusher shell, and the other end of the pusher thimble abuts against the inner wall of the top rod connecting seat. The outer contour surface of the base is further provided with a second clamping groove, the bottom edge of the shell is provided with a first buckle structure, the first buckle structure cooperates with the second clamping groove, and the assembly between the base and the shell is realized. The top of the shell is provided with an opening, the upper end of the top rod connecting seat is provided with a boss structure for connecting with the knob, the upper edge of the boss structure is provided with a second buckle structure, and the inner wall of the knob is provided with a third clamping groove corresponding to the second buckle structure. Three convex column structures are further arranged in the knob, three inclined surfaces are arranged at the opening edge of the top of the shell, the convex column structures cooperate with the inclined surfaces when rotating, and the top rod connecting seat is driven to move up and down. The inclined surface is two-section type, and the end of the two-section inclined surface is provided with a flat surface.

[0025] The actual use method is as follows: the paraffin pusher is arranged in the upper cavity of the base. When the paraffin pusher is heated, the thimble gradually pushes up, the thimble drives the top rod and the top rod connecting seat to move up, and the top rod releases the valve rod in the process of moving up, so that the valve is switched from the normally closed state to the open state. As the paraffin pusher gradually cools down, a spring (not shown in the figure) is arranged between the thimble connecting seat and the knob, the spring force makes the top rod reset, and the valve returns to the normally closed state.

[0026] In the manual state, the rotation of the knob controls the opening and closing of the valve, and when the knob is rotated, the three convex column structures in the knob gradually contact the inclined surface, and the top rod connecting seat and the top rod are gradually moved up through the inclined surface, and when they are moved up to the flat position, the knob can be loosened to keep the valve in the normally open state. When resetting, the knob is rotated in the opposite direction, and through the spring force, it naturally slides to the bottom of the inclined surface, so that the valve returns to the normally closed state.

[0027] The above only discloses the preferred embodiments of the utility model, and of course cannot limit the scope of the utility model, so equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.

Claims

1. A novel electrothermal actuator characterized by: The application relates to a wax propeller device, which comprises a shell, a base, a top rod, a wax propeller, a top rod connecting base and a knob, wherein the base is arranged at the bottom of the shell, the knob is arranged at the top of the shell, the wax propeller and the top rod are arranged in the base, the top rod is arranged below the wax propeller, the top rod connecting base is arranged in the shell, the upper end of the top rod connecting base is connected with the knob, the lower end of the top rod connecting base is connected with the top rod, the base comprises an upper cavity and a lower cavity, the wax propeller is arranged in the upper cavity, the top rod is arranged in the upper cavity, three hook feet are arranged on the top rod, the three hook feet penetrate through the upper part of the lower cavity, the surface of the top rod connecting base is provided with first clamping grooves corresponding to the hook feet, the hook feet are buckled with the first clamping grooves, the wax propeller comprises a heat-sensitive part, a propeller shell and a propeller thimble, the heat-sensitive part is arranged at the bottom of the upper cavity, the propeller shell is arranged in the upper cavity, one end of the propeller thimble is inserted into the propeller shell, and the other end of the propeller thimble abuts against the inner wall of the top rod connecting base.

2. A novel electrothermal actuator as claimed in claim 1, characterized in that: The outer contour surface of the base is further provided with a second clamping groove, the bottom edge of the shell is provided with a first clamping buckle structure, the first clamping buckle structure is matched with the second clamping groove, and the assembly between the base and the shell is realized.

3. A novel electrothermal actuator as claimed in claim 2, characterized in that: The top part of the shell is provided with an opening, the upper end of the top rod connecting base is provided with a boss structure used for being connected with the knob, the upper edge of the boss structure is provided with a second clamping buckle structure, and the inner wall of the knob is provided with a third clamping groove corresponding to the second clamping buckle structure.

4. A novel electrothermal actuator as claimed in claim 3, characterized in that: Three convex column structures are further arranged in the knob, three inclined surfaces are arranged at the edge of the opening of the top part of the shell, the convex column structures are matched with the inclined surfaces during rotation, and the top rod connecting base is driven to move up and down.

5. A novel electrothermal actuator as claimed in claim 4, characterized in that: The inclined surface is two-section type, and the terminal ends of the two-section inclined surface are provided with planes.

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