Electric heating actuator

Abstract

The utility model belongs to the technical field of heating, and particularly relates to an electric heating actuator which comprises a base and an outer cover connected to the base, a moving block is arranged in the outer cover in a sliding mode, the lower end of the moving block is connected with a sliding seat, a temperature bulb is arranged between the moving block and the base, a lifting plate is arranged above the outer cover, a rotating shaft is arranged on the lifting plate, and the rotating shaft is connected with the sliding seat. The upper end of the moving block extends out of the outer cover, the extending part is provided with a mounting hole allowing the rotating shaft to penetrate through, the lifting plate is rotationally connected with the moving block through the rotating shaft, the distance D1 between the axis of the rotating shaft and the lower surface of the lifting plate is smaller than the distance D2 between the axis of the rotating shaft and the side face of the lifting plate, and the side face is parallel to the axis of the rotating shaft. The sliding seat is high in ascending and descending speed, labor-saving to operate and convenient to operate.

Description

Technical field:

[0001] The utility model belongs to the technical field of heating, in particular to an electric heating actuator. Background technology:

[0002] The electric actuator is mainly used in floor heating systems to control the closing and opening of pipelines. It is specifically used in the electric drive part of the electric actuator of manifold branch valves, small valves, and dynamic balancing valves.

[0003] The Chinese utility model patent (publication number CN214946793U, application date 2021.07.28, publication date 2021.11.30) discloses a manual-automatic electric heating actuator valve, including a shell base, a clutch seat (i.e., a moving block) and a slide seat which can slide in the axial direction relative to the shell base are respectively provided above and below the shell base, and a plurality of snap-on claws are evenly distributed along the circumferential direction of the slide seat, passing through the shell base and connected to the clutch seat; a temperature bag is provided between the clutch seat and the shell base, and an electric heating device is provided at the bottom of the temperature bag, which pushes the clutch seat upward by heating the push rod of the temperature bag, so that the clutch seat drives the slide seat upward; and also includes a shell upper cover located above the shell base, which is engaged with the shell base and sleeved on the outside of the clutch seat, and a clutch hole is provided in the center of the shell upper cover, and the shell upper cover outer cover The spool of said valve body is pressed downwardly and the ... The adjusting handle protrudes outwardly from the top of the outer cover, and the outer wall of the adjusting handle facing the bottom of the outer cover is provided with a positioning edge, and the positioning edge is stuck between the inner end surface of the closing opening at the top of the outer cover and the upper cover of the shell body. The center of the adjusting handle facing the bottom of the outer cover is provided with an adjusting screw; the end of the clutch seat facing away from the bottom of the shell base is provided with a clutch claw evenly arranged along its circumferential direction, and the outer wall of the clutch claw is provided with a clutch slide groove, and the inner wall of the clutch hole is provided with a clutch slider adapted to the clutch slide groove, so that the clutch seat maintains axial sliding while limiting its circumferential rotation; the end of the clutch claw is provided with a claw hook extending toward the center direction of the clutch seat, and a clutch nut that cooperates with the adjusting screw thread is provided between the claw hook and the upper end surface of the clutch seat, and the outer wall of the clutch nut is provided with a nut slide groove, and the inner wall of the side of the clutch claw facing the center of the clutch seat is provided with a guide strip adapted to the nut slide groove, so that axial sliding occurs between the clutch nut and the clutch claw while limiting its circumferential rotation. During installation, the actuator can be opened manually first, that is, the adjusting handle is turned to raise the slide seat to provide installation space for the valve stem. At this time, the threaded sleeve can easily dock with the valve core mounting seat to avoid the top-to-bottom state with the valve core spring on the valve stem, making installation easier.

[0004] The disadvantage of the above-mentioned manual-automatic electric heating actuator valve is that: during installation, it is laborious to raise the slide seat by turning the adjustment handle, and the slide seat rises slowly, which is inconvenient to operate. Summary of the invention:

[0005] The utility model aims to provide an electrothermal actuator, the slide seat of which has fast rising and falling speeds, is labor-saving and easy to operate.

[0006] The utility model is achieved in this way:

[0007] An electrothermal actuator comprises a base and an outer cover connected to the base, a moving block is slidably arranged in the outer cover, a sliding seat is connected to the lower end of the moving block, a temperature bag is arranged between the moving block and the base, a lifting plate is arranged above the outer cover, a rotating shaft is arranged on the lifting plate, the upper end of the moving block extends out of the outer cover, and a mounting hole is arranged on the extending part for the rotating shaft to pass through, the lifting plate is rotatably connected to the moving block through the rotating shaft, a distance D1 between the axis of the rotating shaft and the lower surface of the lifting plate is smaller than a distance D2 between the axis of the rotating shaft and the side of the lifting plate, and the side is parallel to the axis of the rotating shaft.

[0008] In the above-mentioned electrothermal actuator, a plurality of buckling claws are arranged on the top of the slide seat, which are evenly distributed along the circumferential direction of the slide seat and pass through the base to be connected with the moving block.

[0009] In the above-mentioned electrothermal actuator, the upper end of the moving block is cylindrical, and the lifting plate is provided with an assembly hole for avoiding the moving block. The mounting hole penetrates the moving block along the diameter direction of the moving block, and the middle part of the rotating shaft is passed through the mounting hole and connected to the lifting plate at both ends.

[0010] In the above-mentioned electrothermal actuator, the mounting hole is a long strip hole arranged vertically in the length direction.

[0011] In the above-mentioned electrothermal actuator, the interior of the moving block is a hollow structure, and a mounting block for setting a mounting hole is provided in the moving block.

[0012] In the above-mentioned electrothermal actuator, support bars are provided on both sides of the mounting block.

[0013] In the above-mentioned electrothermal actuator, the rotating shaft is tightly matched with the lifting plate, and the rotating shaft can rotate relative to the mounting hole.

[0014] In the above-mentioned electrothermal actuator, a handle is provided on a side of the lifting plate away from the side surface, and the handle is protruded from the outer cover.

[0015] In the above-mentioned electrothermal actuator, a limiting portion for limiting the lifting plate is provided on the outer cover, and the limiting portion is arranged on one side of the side surface, the lower surface is connected to the side surface through arc surface 1, and the side surface is connected to the upper surface of the lifting plate through arc surface 2.

[0016] In the above-mentioned electrothermal actuator, the arc surface one and the arc surface two are circular arc surfaces, and the radius of the arc surface one is greater than the radius of the arc surface two.

[0017] The outstanding advantages of the utility model compared with the prior art are:

[0018] 1. The utility model realizes the rise and fall of the movable slide by rotating the lifting plate. The slide rises and falls quickly, saves effort and is easy to operate;

[0019] 2. The mounting hole of the utility model is a long strip hole arranged vertically along the length direction, which effectively prevents the lifting plate from affecting the rise and fall of the moving block during normal use. Description of the drawings:

[0020] Figure 1 It is a three-dimensional diagram of the movable block of the utility model in an unlifted state;

[0021] Figure 2 It is a three-dimensional diagram of the lifting state of the movable block of the utility model;

[0022] Figure 3 It is an exploded view of the utility model;

[0023] Figure 4 It is a cross-sectional view of the utility model;

[0024] Figure 5 It is a left side view of the handle plate of the utility model.

[0025] Figure numerals: 1. base; 2. outer cover; 3. moving block; 4. slide seat; 5. lifting plate; 6. rotating shaft; 7. mounting hole; 8. lower surface; 9. side; 10. assembly hole; 11. mounting block; 12. handheld part; 13. limiting part; 14. arc surface 1; 15. upper surface; 16. arc surface 2; 17. buckle claw. Specific implementation method:

[0026] The present invention is further described below with reference to specific embodiments. Figure 1 —5:

[0027] An electrothermal actuator comprises a base 1 and an outer cover 2 connected to the base 1, a moving block 3 is slidably provided inside the outer cover 2, a slide seat 4 is connected to the lower end of the moving block 3, a temperature bag is provided between the moving block 3 and the base 1, a lifting plate 5 is provided above the outer cover 2, a rotating shaft 6 is provided on the lifting plate 5, the upper end of the moving block 3 extends out of the outer cover 2, and the extending part is provided with a mounting hole 7 for the rotating shaft 6 to pass through, the lifting plate 5 is rotatably connected to the moving block 3 through the rotating shaft 6, the distance D1 between the axis of the rotating shaft 6 and the lower surface 8 of the lifting plate 5 is less than the distance D2 between the axis of the rotating shaft 6 and the side 9 of the lifting plate 5, and the side 9 is parallel to the axis of the rotating shaft 6.

[0028] The working principle of the utility model is as follows: Figure 1-5 As shown, when not installed, the lower surface 8 of the lifting plate 5 is attached to the outer cover 2; when installed, the lifting plate 5 is rotated upward so that the side surface 9 of the lifting plate 5 is attached to the outer cover 2. Since the distance D1 between the axis of the rotating shaft 6 and the lower surface 8 of the lifting plate 5 is smaller than the distance D2 between the axis of the rotating shaft 6 and the side surface 9 of the lifting plate 5, after the lifting plate 5 is rotated upward, the moving block 3 rises, driving the slide 4 to rise, and the rising distance is the difference between D1 and D2; after the installation is completed, the lifting plate 5 is rotated downward, the moving block 3 falls, driving the slide 4 to fall and reset, and the falling distance is the difference between D1 and D2;

[0029] The utility model realizes the rising and falling of the movable slide 4 by rotating the lifting plate 5, the rising and falling speed of the slide 4 is fast, the operation is labor-saving, and the operation is convenient.

[0030] The connection structure between the slide 4 and the moving block 3: The top of the slide 4 is provided with a plurality of buckling claws 17 which are evenly distributed along the circumferential direction of the slide 4 and pass through the base 1 to be connected with the moving block 3.

[0031] Furthermore, after the temperature package is heated, its push rod extends to push the moving block 6 to move upward, and after the temperature package is cooled, its push rod retracts, and the moving block 6 moves downward and resets.

[0032] In order to facilitate the smooth rise and fall of the moving block 3, as Figure 1-4 As shown, the upper end of the moving block 3 is cylindrical, and the lifting plate 5 is provided with an assembly hole 10 for avoiding the moving block 3. The mounting hole 7 penetrates the moving block 3 along the diameter direction of the moving block 3. The middle part of the rotating shaft 6 is penetrated in the mounting hole 7 and connected to the lifting plate 5 at both ends.

[0033] In order to ensure that the lifting plate 5 does not affect the rise and fall of the moving block 3 during normal use, Figure 3 , 4 As shown, the mounting hole 7 is a long strip hole arranged vertically in the length direction. In normal use, when the moving block 3 is rising and falling, the lifting plate 5 is stationary.

[0034] In order to reduce the weight of the moving block 3 as much as possible, facilitate the lifting and lowering of the moving block 3 , and save materials, the interior of the moving block 3 is a hollow structure, and a mounting block 11 for setting the mounting hole 7 is provided in the moving block 3 .

[0035] In order to enhance the strength of the mounting block 11 , support bars are provided on both sides of the mounting block 11 .

[0036] In order to prevent the rotating shaft 6 from falling out, the rotating shaft 6 is tightly matched with the lifting plate 5 , and the rotating shaft 6 can rotate relative to the mounting hole 7 .

[0037] In order to facilitate the rotation of the handle plate 5, as Figure 1-4 As described, a handle portion 12 is provided on a side of the lifting plate 5 away from the side surface 9 , and the handle portion 12 is protruded from the outer cover 2 .

[0038] Furthermore, the outer cover 2 is provided with a limiting portion 13 for limiting the lifting plate 5, and the limiting portion 13 is arranged on the side of the side 9. The lower surface 8 is connected to the side 9 through an arc surface 14, and the side 9 is connected to the upper surface 15 of the lifting plate 5 through an arc surface 2 16, which effectively prevents rotation interference and facilitates the rotation of the handle plate 5.

[0039] Furthermore, the arc surface 1 14 and the arc surface 2 16 are arc surfaces, and the radius of the arc surface 1 14 is greater than the radius of the arc surface 2 16 .

[0040] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An electrothermal actuator, comprising a base (1) and an outer cover (2) connected to the base (1), a moving block (3) being slidably arranged inside the outer cover (2), a sliding seat (4) being connected to the lower end of the moving block (3), a temperature bag being arranged between the moving block (3) and the base (1), characterized in that: A lifting plate (5) is provided above the outer cover (2), and a rotating shaft (6) is provided on the lifting plate (5). The upper end of the moving block (3) extends out of the outer cover (2), and a mounting hole (7) is provided on the extending portion for the rotating shaft (6) to pass through. The lifting plate (5) is rotatably connected to the moving block (3) via the rotating shaft (6), and the distance between the axis of the rotating shaft (6) and the lower surface (8) of the lifting plate (5) is smaller than the distance between the axis of the rotating shaft (6) and the side surface (9) of the lifting plate (5), and the side surface (9) is parallel to the axis of the rotating shaft (6).

2. An electrothermal actuator according to claim 1, characterized in that: The upper end of the moving block (3) is cylindrical, the lifting plate (5) is provided with an assembly hole (10) for avoiding the moving block (3), the mounting hole (7) penetrates the moving block (3) along the diameter direction of the moving block (3), the middle part of the rotating shaft (6) is penetrated in the mounting hole (7), and the two ends are connected to the lifting plate (5).

3. The electrothermal actuator according to claim 1, characterized in that: The mounting hole (7) is a long strip-shaped hole arranged vertically in the length direction.

4. An electrothermal actuator according to claim 3, characterized in that: The interior of the moving block (3) is a hollow structure, and a mounting block (11) for setting a mounting hole (7) is provided inside the moving block (3).

5. The electrothermal actuator according to claim 1, characterized in that: The rotating shaft (6) is tightly matched with the lifting plate (5), and the rotating shaft (6) can rotate relative to the mounting hole (7).

6. The electrothermal actuator according to claim 1, characterized in that: A handle (12) is provided on the side of the lifting plate (5) away from the side surface (9), and the handle (12) is arranged to protrude from the outer cover (2).

7. The electrothermal actuator according to claim 1, characterized in that: The outer cover (2) is provided with a limiting portion (13) for limiting the position of the lifting plate (5); the limiting portion (13) is arranged on one side of the side surface (9); the lower surface (8) is connected to the side surface (9) through an arc surface 1 (14); and the side surface (9) is connected to the upper surface (15) of the lifting plate (5) through an arc surface 2 (16).

8. An electrothermal actuator according to claim 7, characterized in that: The arc surface one (14) and the arc surface two (16) are arc surfaces, and the radius of the arc surface one (14) is greater than the radius of the arc surface two (16).

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