Manual-automatic integrated electric heating actuator

Abstract

The utility model discloses a manual-automatic integrated electric heating actuator, and relates to the field of heating technology, and the manual-automatic integrated electric heating actuator comprises a hand wheel which can be manually turned to adjust opening and closing, the interior of the hand wheel is in threaded connection with a shell, an indication cover movably penetrates through the interior of the shell, the indication cover is sleeved with a first spring which abuts against an inner cavity of the shell, and a temperature bulb is inserted into the indication cover; a base abuts against the lower portion of the temperature bulb, a movable seat clamped with the indicating cover is slidably arranged on the lower portion of an inner cavity of the base, a toothed nut is in threaded connection with the outer ring face of the lower portion of the base, and a terminal electric wire used for electric heating is arranged on one side of the temperature bulb. The problems that the structure is complex and manual opening and closing are inconvenient due to the stroke problem are solved.

Description

Technical Field

[0001] The present application relates to the field of heating technology, and in particular to a manual-automatic electric heating actuator. Background Art

[0002] A manual-automatic electric heating actuator, also known as a hand-controlled electric heating actuator, is a device that converts electrical energy into heat energy and drives mechanical motion to achieve control functions. It combines both electric and manual operation modes, allowing manual operation in the event of a power failure or other special circumstances.

[0003] For example, the Chinese patent application number CN202121738720.X is a manual-automatic electric heating actuator, which has the following shortcomings:

[0004] The above patent drives the clutch nut by rotating the adjusting handle, and the clutch nut drives the clutch seat and then drives the slide to move axially, so that the slide moves upward and drives the valve stem a to control the branch opening flow to increase. When the adjusting handle is adjusted in the reverse direction, the slide spring pushes the clutch seat and then drives the slide to reset, so that the branch opening flow becomes smaller or closed. The structure of this device is relatively complex, and due to the short stroke, the use of manual switch will bring great inconvenience. Utility Model Content

[0005] In order to improve the problem of complex structure and inconvenience of manual switching due to travel problems, the present application provides a manual-automatic electric heating actuator.

[0006] The present application provides a manual-automatic electric heating actuator adopting the following technical solutions:

[0007] A manual-automatic electric heating actuator, including a manual-automatic electric heating actuator, characterized in that: it includes a hand wheel for manually adjusting the opening and closing with a manual knob, the hand wheel is internally threadedly connected to a shell, an indicator cover is movably provided through the middle of the inner cavity of the shell and is movably provided with the indicator cover and the middle of the inner cavity of the hand wheel, a first spring is externally sleeved on the indicator cover and is in contact with the inner surface of the shell, a space is left between the outer surface of the indicator cover and the inner surface of the shell to allow the first spring to move longitudinally, and the upper surface of the inner cavity of the indicator cover and the upper outer surface of a temperature bulb having a T-shape are mutually in contact and plugged together;

[0008] The outer surface of the lower part of the temperature bag is inserted into the inner cavity of the outer sleeve, and the lower part of the outer sleeve is fixed with a base that is clamped and fixed with the lower part of the inner cavity of the shell, and the lower part of the inner cavity of the base is slidably provided with a movable seat that is clamped with the indicator cover, the lower part of the movable seat and the valve stem are arranged to abut each other, and a space is provided between the upper part of the movable seat and the base for the movable seat to move longitudinally with the indicator cover, and the outer ring surface of the lower part of the base is threadedly connected to a toothed nut connected to the valve, and a terminal wire for electric heating is provided on one side of the temperature bag, and the terminal wire passes through a hole opened at the clamping position of the base and the shell.

[0009] By adopting the above technical solution, the handwheel and the thread inside the shell cooperate with each other to control the indicator cover, and can cooperate with the indicator cover, the first spring and the movable seat to open and close the valve in the power-off state, and can realize automatic opening and closing of the valve through the cooperation between the temperature bag, the push rod and the indicator cover in the power-on state.

[0010] Preferably, a plurality of arc-shaped clips which are symmetrical to each other and have the same structure are fixed along the upper opening ring on the upper part of the inner cavity of the hand wheel, and a top cover fixed on the upper part of the indicator cover is clamped inside the arc-shaped clips.

[0011] By adopting the above technical solution, several arc-shaped clips are connected end to end to form a circle, which can provide a good clamping and limiting effect on the top cover. In addition, a certain distance is left between each arc-shaped clip, which can enable each individual arc-shaped clip to have a certain deformation ability, thereby facilitating the disassembly of the top cover.

[0012] Preferably, a second spring is fixedly provided at the lower portion of the temperature bag and is arranged to abut against the middle portion of the upper surface of the base.

[0013] By adopting the above technical solution, when the handwheel lifts the indicator cover and the valve is in the open state, the temperature bulb may be stringed up. The second spring can also provide support for the electrode with the terminal wire and contact it with the temperature bulb to prevent the occurrence of power outage.

[0014] Preferably, a top rod is slidably provided in the inner cavity of the temperature bag and abuts against the middle part of the inner surface of the top cover.

[0015] By adopting the above technical solution, the push rod can be pushed upward after the temperature package is energized, helping the temperature package to push the indicator cover out of the upper top surface of the first wheel.

[0016] Preferably, several movable cards B with the same structure are symmetrically arranged on the upper part of the movable seat, and several of the movable cards B pass through several guide card slots symmetrically opened on the upper part of the base cavity and are fixed with several limit card slots symmetrically opened on the lower part of the indicator cover.

[0017] By adopting the above technical solution, the guide slot can guide and laterally limit the movable card B, and the movable card B can be quickly installed and removed from the limiting slot.

[0018] Preferably, the height of the outer sleeve fixed to the middle of the upper surface of the base is two-thirds of the height of the temperature package, and the inner diameter of the outer sleeve is consistent with the outer diameter of the lower part of the temperature package, so that the temperature package and the outer sleeve fit tightly.

[0019] By adopting the above technical solution, the outer sleeve can provide protection and support for the temperature pack.

[0020] Preferably, a plurality of movable clips A with the same structure are symmetrically arranged on the lower part of the base, and the outward protrusions on the lower part of the outer surface of the plurality of movable clips A can be engaged with the inside of the toothed nut.

[0021] By adopting the above technical solution, a plurality of movable clamps A can effectively clamp and fix the toothed nuts.

[0022] Preferably, a scale line is fixed on one side of the outer ring surface of the upper portion of the indicator cover for judging the height of the indicator cover after opening and thus accurately controlling the opening and closing degree of the valve.

[0023] By adopting the above technical solution, the scale line can facilitate the judgment of the stroke height when the actuator automatically opens by observing the scale line after the indicator cover is lifted to the upper part of the handwheel.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The clever design of the hand wheel and the housing enables the indicator cover to drive the movable seat to move up and down to realize the valve opening and closing function. The structure is simple and reliable and easy to install.

[0026] 2. The push rod is raised and lowered by heating the temperature package, and then the indicator cover drives the movable seat to rise and fall synchronously to realize the valve opening and closing function. It also has the advantages of long stroke and easy use of manual switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall picture of this application;

[0028] Figure 2 A cross-sectional view of the present application;

[0029] Figure 3 A half-section view of the present application;

[0030] Figure 4 This is an exploded view of the application;

[0031] Figure 5 This is an enlarged view of the lower exploded structure of this application;

[0032] Figure 6 This is an enlarged view of the upper explosion structure of this application.

[0033] Reference numerals: 1, hand wheel; 2, housing; 3, temperature bulb; 4, first spring; 5, indicator cover; 6, second spring; 7, wire with terminal; 8, movable seat; 9, base;

[0034] 10. Toothed nut; 11. Scale line; 12. Push rod; 13. Outer sleeve; 14. Guide slot; 15. Movable card A; 16. Movable card B; 17. Limiting slot; 18. Arc card; 19. Top cover. DETAILED DESCRIPTION

[0035] The following is combined with Figures 1-6 This application is described in further detail.

[0036] The embodiments of the present application disclose a manual-automatic electric heating actuator.

[0037] Reference Figure 1-Figure 4 、 Figure 6 A manual-automatic electric heating actuator includes a handwheel 1 that can be used to manually adjust the opening and closing of the handwheel 1, and four arc-shaped clips 18 are fixedly provided on the upper part of the inner cavity of the handwheel 1, and the four arc-shaped clips 18 are arranged in a ring along the lower part of the upper opening and are symmetrical to each other. The structures of the four arc-shaped clips 18 are the same, and the lower part is provided with a barb, and a top cover 19 is provided inside the arc-shaped clip 18. The outer ring surface of the top cover 19 is provided with an outward protrusion, and the arc-shaped clip 18 is clamped with the protrusion provided on the outer ring surface of the top cover 19 through the barb provided on its lower part, and the top cover 19 is fixedly provided on the upper part of the indicator cover 5.

[0038] Reference Figure 1-Figure 4 、 Figure 6 , and the lower part of the handwheel 1 is provided with a shell 2, and the inner surface of the handwheel 1 is provided with an internal thread from the middle to the lower part, and is threadedly connected to the external thread provided on the upper part of the shell 2 and tightened, and the inside of the shell 2 and the indicator cover 5 are movably penetrated, and a scale line 11 is fixedly provided on one side of the upper outer ring surface of the indicator cover 5, and the scale line 11 can be used to judge the valve opening and closing degree by observing how much the scale line 11 on the indicator cover 5 is higher than the handwheel when the valve is automatically opened and closed. A first spring 4 is sleeved on the outside of the indicator cover 5, and the first spring 4 and the indicator cover 5 are arranged in the inner cavity of the shell 2 together and abut against the upper part of the inner cavity of the shell 2, and the lower part of the first spring 4 abuts against the lower part of the indicator cover 5, so that the indicator cover 5 can be pushed back to its original position when the upward thrust is lost, and the indicator cover 5 not only movably penetrates the shell 2, but also movably penetrates the handwheel 1, and the top cover 19 fixed on the upper part of the indicator cover 5 has a diameter smaller than the diameter of the opening on the handwheel 1 by 1-2 mm, so that the indicator cover 5 can move in the handwheel 1 without being affected.

[0039] Reference Figure 1-Figure 5 , and the temperature bag 3 is inserted into the inside of the indicator cover 5, and the inner ring surface of the indicator cover 5 abuts against the outer ring surface of the upper part of the temperature bag 3, and a push rod 12 is slidably provided in the inner cavity of the temperature bag 3, and the upper surface of the push rod 12 abuts against the middle part of the inner surface of the top cover 19, so that the push rod 12 can vertically push the top cover 19 upward, and a terminal wire 7 is provided on one side of the temperature bag 3, and the terminal wire 7 can be used to energize and heat the temperature bag 3. After the temperature bag 3 is heated, the push rod 12 will be pushed upward, thereby pushing the top cover 19 and the indicator cover 5 upward, and the lower surface of the temperature bag 3 is fixedly connected to the upper end of the second spring 6, and the lower end of the second spring 6 abuts against the middle part of the upper surface of the base 9.

[0040] Reference Figure 1-Figure 5 , and an outer sleeve 13 is fixed to the middle part of the upper surface of the base 9, and the inner cavity surface of the outer sleeve 13 and the outer surface of the middle and lower part of the temperature package 3 are fitted together and plugged into each other, so as to achieve the effect of the base 9 supporting the temperature package 3 through the outer sleeve 13, and the outer annular surface of the outer sleeve 13 and the inner cavity annular surface of the indicator cover 5 are fitted together and slidably arranged with each other, and are slidably arranged with the movable seat 8 at the lower part of the inner cavity of the base 9, and the outer diameter of the movable seat 8 is 2-3 mm smaller than the inner diameter of the base 9, reducing the friction between the outer annular surface and the inner annular surface of the base 9 when the movable seat 8 moves and causing wear, resulting in poor sealing effect of the movable seat 8.

[0041] Reference Figure 1-Figure 5 , and a number of movable cards B16 with the same structure are fixedly provided on the upper part of the movable seat 8, and a number of movable cards B16 with the same structure are symmetrically arranged on the upper part of the movable seat 8, and can be increased or decreased as needed, but at least three are required, and a number of movable cards B16 are provided with outward flat hooks on the upper ends, and the upper ends of the several movable cards B16 are mutually engaged with a number of limit card slots 17, and a number of limit card slots 17 are opened at the lower part of the indicator cover 5, and the number of limit card slots 17 is consistent with the number of movable cards B16, and the middle parts of the several movable cards B16 are slidably connected with the guide card slots 14, and a number of guide card slots 14 are opened at the upper part of the inner cavity of the base 9, and a number of guide card slots 14 are connected to the movable seat 8. The number of movable cards B16 is the same, and before the movable card B16 is engaged with the limit card slot 17, the movable card B16 needs to pass through the guide card slot 14, and then it can be engaged with the limit card slot 17. The function of the guide card slot 14 is not only to guide, but also to limit the movable card B16 to prevent the movable card B16 from sliding left and right. A number of movable cards A15 are fixed in a ring at the lower part of the base 9, and the several movable cards A15 are symmetrical with each other and have the same structure. The lower part of the outer surface of the several movable cards A15 arranged in a ring is provided with outward protrusions, and these outward protrusions on the lower part of the movable card A15 can correspond one by one to the card slots provided on the upper part of the inner ring surface of the toothed nut 10 and be engaged and fixed to each other.

[0042] The function of the handwheel 1 is to cooperate with the outer shell 2 thread, thereby controlling the indicator cover 5, and the function of the outer shell is not only to cooperate with the handwheel 1 to control the indicator cover 5, but also to decorate and protect the internal parts together with the handwheel 1. When the temperature package 3 is energized, the internal push rod 12 extends, thereby pushing the indicator cover 5 upward, and when the indicator cover 5 is pushed upward, it will drive the movable seat 8 to rise at the same time, and realize the release of the compressed valve stem, so that the valve is opened, and the first spring 4 can be 120N (the second spring force can be adjusted or replaced as needed), and the first spring 4 is compressed by the indicator cover 5, thereby driving the movable seat 8 to move, and then loosening the valve stem on the user valve, thereby opening the valve, and the indicator cover 5 The scale line 11 set on it can display the working status of the actuator in real time, and the second spring 6 set at the lower part of the temperature bag 3 can support the temperature bag 3, and the terminal wire 7 set on one side of the temperature bag 3 can energize and heat the temperature bag 3, thereby pushing the top rod 12, and the top rod 12 pushes the top cover 19 and the indicator cover 5 upward, thereby driving the movable seat 8 and the movable card B16 to move upward together, and the movable seat 8 and the indicator cover 5 are linked to each other, and can press the valve stem in contact with the movable seat 8 through the first spring 4 to close the valve, and the base 9 can be used as a connection carrier and support structure for the indicator cover 5, the movable seat 8, the terminal wire 7, the toothed nut 10, etc., and the toothed nut 10 can cooperate with the valve body to position the entire device.

[0043] The implementation principle of a manual-automatic electric heating actuator in the embodiment of the present application is as follows: the toothed nut 10 is connected to the valve, and the movable seat 8 and the valve stem are abutted against each other, the toothed nut 10 is tightened, and then in the automatic state, electricity is applied to the temperature bag 3 through the terminal wire 7 to heat it, so that the top rod 12 in the temperature bag 3 pushes the top cover 19 and the indicator cover 5 upward to a certain distance, and the upward movement of the indicator cover 5 will drive the movable seat 8 to move upward synchronously by a certain distance, and the movable seat 8 and the indicator cover 5 are lifted upward by the same distance, so that the movable seat 8 no longer presses the valve stem, and the valve is opened. In the manual state, by rotating the hand wheel 1, the hand wheel 1 is matched with the housing 2, and the indicator cover 5 is controlled to squeeze or release the first spring 4, and then the valve stem in contact with the movable seat 8 is compressed or released by the first spring 4, thereby realizing manual closing or opening of the valve.

[0044] The above are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A manual-automatic electric heating actuator, characterized by: The invention comprises a hand wheel (1) for adjusting opening and closing with a manual knob, wherein the hand wheel (1) is internally threadedly connected to a housing (2), an indicator cover (5) is movably provided in the middle of the inner cavity of the housing (2) and is movably provided in the middle of the inner cavity of the hand wheel (1), a first spring (4) is provided on the outer surface of the indicator cover (5) and is fitted with the inner surface of the housing (2), a space for the longitudinal movement of the first spring (4) is reserved between the outer surface of the indicator cover (5) and the inner cavity surface of the housing (2), and the upper surface of the inner cavity of the indicator cover (5) and the upper outer surface of the temperature package (3) which is set in a T-shape are fitted with each other and plugged into each other; The outer surface of the lower part of the temperature bag (3) is inserted into the inner cavity of the outer sleeve (13), and the lower part of the outer sleeve (13) is fixed with a base (9) that is clamped and fixed with the lower part of the inner cavity of the outer shell (2). The lower part of the inner cavity of the base (9) is slidably provided with a movable seat (8) that is clamped with the indicator cover (5). The lower part of the movable seat (8) and the valve stem are mutually abutted and a space is provided between the upper part of the movable seat (8) and the base for the movable seat (8) to move longitudinally with the indicator cover (5). The outer ring surface of the lower part of the base (9) is threadedly connected with a toothed nut (10) connected to the valve. A terminal wire (7) for electric heating is provided on one side of the temperature bag (3), and the terminal wire (7) passes through a hole opened at the clamping position of the base (9) and the outer shell (2).

2. The manual-automatic electric heating actuator according to claim 1, characterized in that: A plurality of arc-shaped clips (18) having the same structure and being symmetrical to each other are fixedly provided along the upper opening ring on the upper part of the inner cavity of the hand wheel (1), and a top cover (19) fixedly provided on the upper part of the indicator cover (5) is clamped inside the arc-shaped clips (18).

3. The manual-automatic electric heating actuator according to claim 1, characterized in that: A second spring (6) is fixedly provided at the lower portion of the temperature bag (3) and is arranged to abut against the middle portion of the upper surface of the base (9).

4. The manual-automatic electric heating actuator according to claim 1, characterized in that: A top rod (12) is slidably arranged in the inner cavity of the temperature bag (3) and is arranged to abut against the middle part of the inner surface of the top cover (19).

5. The manual-automatic electric heating actuator according to claim 1, characterized in that: A plurality of movable cards B (16) having the same structure are symmetrically arranged on the upper part of the movable seat (8). The plurality of movable cards B (16) pass through a plurality of guide card slots (14) symmetrically arranged on the upper part of the inner cavity of the base (9) and are fixedly engaged with a plurality of limit card slots (17) symmetrically arranged on the lower part of the indicator cover (5).

6. The manual-automatic electric heating actuator according to claim 1, characterized in that: The height of the outer sleeve (13) fixed in the middle of the upper surface of the base (9) is two-thirds of the height of the temperature bag (3), and the inner diameter of the outer sleeve (13) is consistent with the outer diameter of the lower part of the temperature bag (3), so that the temperature bag (3) and the outer sleeve (13) fit tightly.

7. The manual-automatic electric heating actuator according to claim 1, characterized in that: The lower part of the base (9) is symmetrically provided with a plurality of movable clamps A (15) of the same structure. The outward protrusions on the lower parts of the outer surfaces of the plurality of movable clamps A (15) can be clamped with the inside of the toothed nut (10).

8. The manual-automatic electric heating actuator according to claim 1, characterized in that: A scale line (11) is fixedly provided on one side of the outer ring surface of the upper portion of the indicator cover (5) for judging the height of the indicator cover after opening and thus accurately controlling the opening and closing degree of the valve.

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