CN209263149U - A kind of electrical actuator - Google Patents

Abstract

The utility model provides a kind of electrical actuator, comprising: upper housing；Stroke indicates frame structure, can be installed in upper housing up or down, and the valve rod that the driving arm of its bottom end is coupled structure and valve by first connects, and stroke instruction frame structure is moved up and down by driving arm driving stem, to turn off or on valve.Since valve rod follows stroke instruction frame structure to move up and down, therefore, eliminate the second spring resetted in the prior art for driving stem, electrical actuator is more laborsaving when installing with valve, it improves work efficiency, in addition, when the case where rubber and pipeline bonding connection for valve rod bottom end occur, rubber of the stroke instruction frame structure also on energy band ovable valve stem is separated with pipeline, and reliability is higher.

Description

A kind of electrical actuator

Technical field

The utility model relates to furniture heating technology fields, and in particular to a kind of electrical actuator.

Background technique

Electrical actuator, also known as electric heating constant temperature controller are a kind of (cold for remote control system flow, heat Amount) device, suitable for house, market, the heating in hotel and central air-conditioning temperature control, measure by door.Electrical actuator It is mainly used in floor heating heating system, controls the closing and unlatching of pipeline, be applied particularly to water collecting and diversifying device branch road valve, pet-valve Door, dynamic equilibrium valve electrical actuator electrical drive portion.

General electrical actuator include shell, the first spring, paraffin driver and stroke instruction frame, paraffin driver, Spring and stroke instruction frame are respectively set inside the shell, and the first spring one end contradicts on paraffin driver, and the other end contradicts Shell, stroke indicate valve rod of the frame with movable valve, and stroke instruction frame can be moved up and down along shell, interior after paraffin driver is powered It is expanded after the paraffin in portion is heated, the extensible member of paraffin driver lower part is driven to stretch out, stroke indicates that the upper end of frame is contradicted flexible On part, stroke instruction frame moves down under the drive of paraffin driver, so that valve be driven to open or close, wherein valve On be provided with for driving stem reset second spring.The shell of electrical actuator and valve are spirally connected when installing, installation personnel The elastic force for needing to overcome second spring, make stroke instruction frame abutted with valve rod, install in this way it is time-consuming and laborious, reduce work imitate Rate, in addition, valve rod bottom end is provided with the rubber for sealing, and valve is when being in close state for a long time, rubber be easy with Pipeline bonding connection, causes valve rod not to be capable of resetting, needs first to remove electrical actuator at this time, pull valve rod manually, make valve rod bottom The rubber at end is separated with pipeline, increases maintenance cost.

Utility model content

When therefore, the technical problem to be solved by the present invention is to overcome electrical actuator installation fee in the prior art Arduously, the defect that working efficiency is low, maintenance cost is high, to provide, one kind is quickly and expediently installed, work efficiency is high, high reliablity Electrical actuator.

For this purpose, the utility model provides a kind of electrical actuator, comprising:

Upper housing；

Stroke indicates frame structure, can be installed on up or down in the upper housing, and the driving arm of its bottom end passes through First is coupled the valve rod connection of structure and valve, and the stroke instruction frame structure drives the valve by the driving arm Bar moves up and down, to turn off or on the valve.

As a preferred embodiment, it described first is coupled structure and includes:

First through hole and the second through-hole, are set on the bottom plate of the driving arm, and are interconnected, second through-hole Aperture be greater than the first through hole aperture；

Fixture block structure takes shape in the end of the valve rod, has the fixture block for being inserted into the first through hole, the fixture block One end far from stem body portion forms drive block, and the diameter of the drive block is less than the aperture of second through-hole, and big In the aperture of the first through hole, the diameter in the stem body portion is greater than the aperture of the first through hole.

As a preferred embodiment, the stroke instruction frame structure further includes by the first clamping structure and driving branch The stroke that frame is cooperatively connected indicates that frame, first clamping structure include:

Several card holes take shape on the side plate of the driving arm two sides；

First elastic arm takes shape in the bottom of stroke instruction frame, and extends to the driving arm direction, and described the One elastic arm can flexible deformation, towards the side of the side plate form with the card hole cooperation clamping the first fixture block.

As a preferred embodiment, the installation being cooperatively connected with stroke instruction frame is fixedly installed in the upper housing Bracket, the stroke instruction frame and the mounting bracket are enclosed the inner cavity for accommodating paraffin driver；

Wherein, the paraffin driver expands in the energized state, to drive the stroke to indicate frame to far from the valve The direction movement of door.

As a preferred embodiment, forming in the mounting bracket allows the stroke to indicate that the first elastic arm of frame is worn The jack entered, and the mounting bracket can be hindered with the multiple first convex blocks cooperation taken shape on the stroke instruction frame outer wall Gear, to limit the position of the stroke instruction frame；Be provided between first convex block and the inner wall of the upper housing for Stroke instruction frame is biased power, makes it to the bias piece mobile close to the valve direction.

It as a preferred embodiment, further include the lower case being connect by the second clamping structure with the upper housing, it is described Lower case, which is formed, cooperates the internal screw thread being spirally connected with the external screw thread of the valve.

As a preferred embodiment, second clamping structure includes:

Card slot takes shape on the inner wall of the lower case, and is located above the internal screw thread；

Second elastic arm takes shape in the bottom of the upper housing, and extends to the lower case direction, second elasticity Arm can flexible deformation, have with the card slot cooperation clamping the second fixture block.

Technical solutions of the utility model have the advantages that

1. electrical actuator provided by the utility model, since the driving arm of stroke instruction frame structure bottom end passes through first The valve rod connection namely valve rod for being coupled structure and valve follow stroke instruction frame structure to move up and down, to turn off or on Therefore valve eliminates the second spring resetted in the prior art for driving stem, electrical actuator with valve when installing It is more laborsaving, it improves work efficiency, in addition, when the case where rubber and pipeline bonding connection for valve rod bottom end occur, stroke Indicate that rubber of the frame structure also on energy band ovable valve stem is separated with pipeline, reliability is higher.

2. electrical actuator provided by the utility model, first to be coupled structure include: first through hole and the second through-hole, It is set on the bottom plate of driving arm, and is interconnected, the aperture of the second through-hole is greater than the aperture of first through hole；Fixture block structure, The end of valve rod is taken shape in, there is the fixture block for being inserted into first through hole, fixture block forms drive far from the one end in stem body portion Motion block, the diameter of drive block and are greater than the aperture of first through hole less than the aperture of the second through-hole, and the diameter in stem body portion is greater than The aperture of first through hole.When driving arm and valve rod are installed, valve rod is first inserted into the second through-hole, then move driving arm, makes card After block enters the second through-hole, the bottom plate of driving arm can cooperate with stem body portion and drive block driving respectively, to drive valve Bar moves up and down, and the structure setting of above-mentioned valve rod and driving arm is simple, dismounts efficient and convenient.

3. electrical actuator provided by the utility model, the first clamping structure includes: several card holes, takes shape in driving arm On the side plate of two sides；First elastic arm takes shape in the bottom of stroke instruction frame, and extends to driving arm direction, the first elasticity Arm can flexible deformation, towards the side of side plate form with card hole cooperation clamping the first fixture block, above structure setting letter Single, production cost is low.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is that the electrical actuator of the utility model is mounted on the perspective view in diversity water lines；

Fig. 2 is the sectional view of Fig. 1；

Fig. 3 is the enlarged structure schematic diagram of part A in Fig. 2；

Fig. 4 is that stroke indicates frame structure, mounting bracket, the assembling structure schematic diagram of valve rod；

Fig. 5 is the configuration schematic diagram of Fig. 4；

Fig. 6 is the assembling structure schematic diagram of driving arm and valve rod；

Fig. 7 is the perspective view of driving arm；

Fig. 8 is the sectional view of valve.

Description of symbols: 1, upper housing；11, the second elastic arm；12, the second fixture block；2, mounting bracket；21, paraffin drives Dynamic device；22, jack；3, stroke indicates frame；31, the first elastic arm；32, the first fixture block；33, the first convex block；34, bias piece；4, Driving arm；40, bottom plate；41, first through hole；42, the second through-hole；43, side plate；44, card hole；5, valve；6, valve rod；61, block Block；62, stem body portion；63, drive block；7, lower case；71, card slot.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other Not constituting conflict can be combined with each other.

Embodiment

The present embodiment provides a kind of electrical actuators, as shown in Figure 1-3, electrical actuator is mounted in diversity water lines, Comprising: upper housing 1；Stroke indicates frame structure, can be installed on up or down in the upper housing 1, and the driving of its bottom end Bracket 4 is coupled structure by first and connect with the valve rod 6 of valve 5, and the stroke instruction frame structure passes through driving branch Frame 4 drives the valve rod 6 to move up and down, to turn off or on the valve 5.Since valve rod 6 follows in stroke instruction frame structure Therefore lower movement eliminates the second spring resetted in the prior art for driving stem, electrical actuator is pacified with valve 5 It is more laborsaving when dress, it improves work efficiency, in addition, when the case where rubber and pipeline bonding connection for 6 bottom end of valve rod occur, Rubber of the stroke instruction frame structure also on energy band ovable valve stem 6 is separated with pipeline, and reliability is higher.

As shown in figs 6-8, described first to be coupled structure include: first through hole 41 and the second through-hole 42, is set to institute It states on the bottom plate 40 of driving arm 4, and is interconnected, the aperture of second through-hole 42 is greater than the hole of the first through hole 41 Diameter；Fixture block structure takes shape in the end of the valve rod 6, has the fixture block 61 for being inserted into the first through hole 41, the fixture block 61 one end far from stem body portion 62 form drive block 63, and the diameter of the drive block 63 is less than second through-hole 42 Aperture, and it is greater than the aperture of the first through hole 41, the diameter in the stem body portion 62 is greater than the hole of the first through hole 41 Diameter.When driving arm 4 and valve rod 6 are installed, valve rod 6 is first inserted into the second through-hole 42, then move driving arm 4, make fixture block 61 into After entering the second through-hole 42, be clamped with bottom plate 40, the bottom plate 40 of driving arm 4 can respectively with drive block 63 and stem body portion 62 Driving cooperation is moved up and down with band ovable valve stem 6, and the structure setting of above-mentioned valve rod 6 and driving arm 4 is simple, dismounts efficient and convenient.

The stroke instruction frame structure further includes the stroke being cooperatively connected by the first clamping structure and the driving arm 4 Indicate frame 3, first clamping structure includes: several card holes 44, is taken shape on the side plate 43 of 4 two sides of driving arm；The One elastic arm 31, takes shape in the bottom of the stroke instruction frame 3, and extends to 4 direction of driving arm, first elasticity Arm 31 can flexible deformation, towards the side of the side plate 43 form with the card hole 44 cooperation clamping the first fixture block 32。

The mounting bracket 2 being cooperatively connected with stroke instruction frame 3, mounting bracket 2 are fixedly installed in the upper housing 1 Middle part form the cylinder with upper opening, after the stroke instruction frame 3 is sheathed on mounting bracket 2, propped up with the installation The cylinder of frame 2 is enclosed the inner cavity for accommodating paraffin driver 21；Wherein, the paraffin driver 21 is in the energized state Expansion to drive the stroke to indicate that frame 3 is moved to the direction far from the valve 5, and then moves upwards with ovable valve stem 6, makes Valve 5 is opened.In the present embodiment, the top of upper housing 1 forms the through-hole for allowing stroke to indicate that frame 3 is pierced by.

As shown in Figures 4 and 5, forming in the mounting bracket 2 allows the stroke to indicate that the first elastic arm 31 of frame 3 is worn The jack 22 entered, jack 22 takes shape in the two sides of cylinder, and the mounting bracket 2 can indicate frame 3 with the stroke is taken shape in Multiple first convex blocks 33 on outer wall, which cooperate, to be stopped, to limit the position of the stroke instruction frame 3；First convex block 33 and institute It states and is provided between the inner wall of upper housing 1 for being biased power to stroke instruction frame 3, making it to close to 5 direction of valve Mobile bias piece 34, in the present embodiment, bias piece 34 is spring, and paraffin driver 21 expands in the energized state, with driving The stroke indicates that frame 3 is moved to the direction far from the valve 5, and spring puts aside energy, after power-off, paraffin driver at this time 21 shrink, and spring releases energy, and the stroke is driven to indicate that frame 3 move to the direction close to the valve 5, with ovable valve stem 6 to Lower movement, to close valve 5.

Further include the lower case 7 being connect by the second clamping structure with the upper housing 1, the lower case 7 form with The external screw thread of the valve 5 cooperates the internal screw thread being spirally connected.

As shown in figure 3, second clamping structure includes: card slot 71, take shape on the inner wall of the lower case 7, and position Above the internal screw thread；Second elastic arm 11 takes shape in the bottom of the upper housing 1, and prolongs to 7 direction of lower case Stretch, second elastic arm 11 can flexible deformation, have with the card slot 71 cooperation clamping the second fixture block 12.

The course of work of electrical actuator is as follows:

When energization:

Paraffin in paraffin driver 21 expands after being heated in the energized state, and driving trip instruction frame 3 moves up, from The through-hole at 1 top of upper housing stretches out, and stroke indicates 33 compressed spring of the first convex block of frame 3, meanwhile, stroke instruction frame 3 passes through drive The drive block 63 of dynamic bracket 4 and valve rod 6 cooperates, and band ovable valve stem 6 moves up, and valve 5 is opened.

When power-off:

Paraffin in paraffin driver 21 is shunk in the power-off state, and spring releases energy, and is driven by the first convex block 33 Stroke instruction frame 3 moves down, and driving arm 4 and stem body portion 62 cooperate, and band ovable valve stem 6 moves up, and valve 5 is closed.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes among the protection scope created still in the utility model.

Claims (7)

1. a kind of electrical actuator, it is characterised in that: include:

Upper housing (1)；

Stroke indicates frame structure, can be installed on up or down in the upper housing (1), and the driving arm (4) of its bottom end is logical It crosses first and is coupled structure and connect with the valve rod (6) of valve (5), the stroke instruction frame structure passes through the driving arm (4) valve rod (6) is driven to move up and down, to turn off or on the valve (5).

2. electrical actuator according to claim 1, it is characterised in that: described first, which is coupled structure, includes:

First through hole (41) and the second through-hole (42), are set on the bottom plate (40) of the driving arm (4), and are interconnected, The aperture of second through-hole (42) is greater than the aperture of the first through hole (41)；

Fixture block structure takes shape in the end of the valve rod (6), has the fixture block (61) for being inserted into the first through hole (41), The fixture block (61) forms drive block (63) far from the one end of stem body portion (62), and the diameter of the drive block (63) is less than The aperture of second through-hole (42), and it is greater than the aperture of the first through hole (41), the diameter of the stem body portion (62) Greater than the aperture of the first through hole (41).

3. electrical actuator according to claim 1 or 2, it is characterised in that: the stroke instruction frame structure further includes leading to Stroke instruction frame (3) of the first clamping structure and the driving arm (4) mating connection is crossed, first clamping structure includes:

Several card holes (44) take shape on the side plate (43) of the driving arm (4) two sides；

First elastic arm (31) takes shape in the bottom of stroke instruction frame (3), and extends to the driving arm (4) direction, First elastic arm (31) can flexible deformation, form towards the side of the side plate (43) and match with the card hole (44) Close the first fixture block (32) of clamping.

4. electrical actuator according to claim 3, it is characterised in that: be fixedly installed in the upper housing (1) and institute The mounting bracket (2) that stroke instruction frame (3) is cooperatively connected is stated, stroke instruction frame (3) and the mounting bracket (2) encloses shape At the inner cavity for accommodating paraffin driver (21)；

Wherein, the paraffin driver (21) expands in the energized state, to drive stroke instruction frame (3) to far from described The direction of valve (5) moves.

5. electrical actuator according to claim 4, it is characterised in that: forming on the mounting bracket (2) allows institute State the jack (22) that penetrates of the first elastic arm (31) of stroke instruction frame (3), and the mounting bracket (2) can with take shape in institute Multiple first convex blocks (33) cooperation stated on stroke instruction frame (3) outer wall stops, to limit the position of stroke instruction frame (3) It sets；It is provided between first convex block (33) and the inner wall of the upper housing (1) for being biased to stroke instruction frame (3) Power makes it to the bias piece (34) mobile close to the valve (5) direction.

6. electrical actuator according to claim 4 or 5, it is characterised in that: further include by the second clamping structure and institute The lower case (7) of upper housing (1) connection is stated, the lower case (7) forms to be spirally connected with the cooperation of the external screw thread of the valve (5) Internal screw thread.

7. electrical actuator according to claim 6, it is characterised in that: second clamping structure includes:

Card slot (71), takes shape on the inner wall of the lower case (7), and is located above the internal screw thread；

Second elastic arm (11), takes shape in the bottom of the upper housing (1), and extends to the lower case (7) direction, and described the Two elastic arms (11) can flexible deformation, have with the card slot (71) cooperation clamping the second fixture block (12).