CN207715885U - A kind of manual actuator that can be locked - Google Patents

Abstract

The utility model, which is created, provides a kind of manual actuator that can be locked, including intermeshing worm gear and worm screw, it is cased with pipe sleeve outside the worm screw, the pipe sleeve extends upward locking unit, and worm screw passes through locking unit, locking unit top is equipped with gap, and gap is passed through by a lock-screw, on the output shaft that the worm gear set is rotated synchronously one with worm gear, the low side of the output shaft fixes the output arm of one and output shaft synchronous rotation.The utility model is created locks worm screw in such a way that locking gap becomes smaller nozzle diameter, it is simple in structure, reliable to ensure that manual actuator will not rotate under the influence of external force, using fan-shaped worm gear, remove the redundance of worm gear, reduces space and mechanism overall weight.

Description

A kind of manual actuator that can be locked

Technical field

The invention belongs to manual actuator field, more particularly, to a kind of manual actuator that can be locked.

Background technology

Executing agency is the instrument that manipulating variable is directly changed in control system forward path, there is executing agency and adjusting machine Structure forms, and urges the development of modern industry, pipeline automatic control system executing agency is more widely applied, it is desirable that control valve Opening and closing will with manual actuator, and valve test with checking process in, often occur lose gas, dead electricity feelings Condition, in this case, the hand gear of valve is with regard to particularly significant.

In the operation of manual actuator, it is often necessary to angle change cannot occur in the positioning of some specific position, it is existing There is poor reliability in some manual actuators, processing installation is complicated, takes up an area the shortcomings of big in this respect.

Utility model content

In view of this, the invention is directed to a kind of manual actuator that can be locked, to prevent executing agency from existing When needing to keep certain angle, because unexpected stress changes, provide it is a kind of easy to operate, will not be effected by environmental factors, And process, installation is simple and convenient, securely and reliably.

In order to achieve the above objectives, the technical solution of the invention is realized in：

A kind of manual actuator that can be locked, including intermeshing worm gear and worm screw, the worm screw are cased with pipe sleeve outside, The pipe sleeve extends upward locking unit, and worm screw passes through locking unit, and locking unit top is equipped with gap, and gap is by one Lock-screw passes through, on the output shaft that the worm gear set is rotated synchronously one with worm gear, the low side of the output shaft fix one with The output arm of output shaft synchronous rotation.For by clamping screw, by worm screw locking positioning, stress other than anti-locking mechanism to become Change.

Further, it there are two the gap of the locking unit, and is oppositely arranged.

Further, the internal wall of pipe orifice of the pipe sleeve is equipped with rubber pad.For increasing frictional force.

Further, the worm gear is sector, for mitigating mechanism weight and reducing floor space.

Further, the pointer rotated synchronously is fixed in one end of the output shaft, is equipped with along indicators turn path corresponding Mark, the opening and closing degree for observing and judging valve.

Further, the worm gear is keyed with output shaft.

Further, the worm screw top is equipped with handwheel.

Compared with the existing technology, a kind of manual actuator that can be locked described in the invention；

It has the advantage that：

A kind of manual actuator that can be locked described in the invention, the side for the nozzle diameter that become smaller using locking gap Formula locks worm screw, simple in structure, reliable to ensure that manual actuator will not rotate under the influence of external force；

Using fan-shaped worm gear, remove the redundance of worm gear, reduces space and mechanism overall weight；

Using worm and gear as transmission mechanism, increasing transmission ratio makes the angular adjustment of mechanism more refine.

Description of the drawings

The attached drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound The illustrative embodiments and their description made do not constitute the improper restriction to the invention for explaining the invention. In attached drawing：

Fig. 1 is the invention schematic elevation view；

Fig. 2 is the partial schematic sectional view of the invention；

Fig. 3 is the sectional view along A-A of Fig. 1；

Fig. 4 is locking unit vertical view.

Reference sign：

1- worm gears；2- worm screws；3- pipe sleeves；4- locking units；41- gap；5- lock-screws；6- output shafts；7- output arms； 8- rubber pads；9- pointers；10- is identified；11- handwheels.

Specific implementation mode

It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can To be combined with each other.

In the description of the invention, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies to describe, rather than indicate Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result, Feature can explicitly or implicitly include one or more this feature.In the description of the invention, unless separately It is described, the meaning of " plurality " is two or more.

In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace 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, can also be electrical connection；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, on being understood by concrete condition State concrete meaning of the term in the invention.

The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.

A kind of manual actuator that can be locked, including intermeshing worm gear 1 and worm screw 2, the worm screw 2 are cased with pipe outside Set 3, the pipe sleeve 3 extends upward locking unit 4, and worm screw 2 passes through locking unit 4,4 top of locking unit to be equipped with gap 41, and gap 41 is passed through by a lock-screw 5, the worm gear 1 is sleeved on the output shaft 6 that one rotates synchronously with worm gear 1, described defeated The low side of shaft 6 fixes an output arm 7 rotated synchronously with output shaft 6.For by clamping screw by 2 locking positioning of worm screw, Stress other than anti-locking mechanism, changes.

There are two the gap 41 of the locking unit, and is oppositely arranged.

The internal wall of pipe orifice of the pipe sleeve 3 is equipped with rubber pad 8.For increasing frictional force.

The worm gear 1 is sector, for mitigating mechanism weight and reducing floor space.

The pointer 9 rotated synchronously is fixed in one end of the output shaft 6, and corresponding mark is equipped with along 9 rotation path of pointer 10, the opening and closing degree for observing and judging valve.

The worm gear 1 is keyed with output shaft 6.

2 top of the worm screw is equipped with handwheel 11.

A kind of manual actuator that can be locked described in the utility model, at work, by the switch of valve and output Arm is hinged, drives worm screw, worm gear and output arm to rotate successively by rotating handwheel, when reaching predetermined angular, by tightening locking Bolt makes casing hold worm screw tightly, carries out locking and prevents unintentional rotation.

The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention Protection domain within.

Claims (7)

1. a kind of manual actuator that can be locked, it is characterised in that：It is described including intermeshing worm gear (1) and worm screw (2) Pipe sleeve (3) is cased with outside worm screw (2), the pipe sleeve (3) extends upward locking unit (4), and worm screw (2) passes through locking unit (4), locking unit (4) top is equipped with gap (41), and gap (41) is passed through by a lock-screw (5), and the worm gear (1) is sleeved on On one output shaft (6) rotated synchronously with worm gear (1), the low side of the output shaft (6) is fixed one and is rotated synchronously with output shaft (6) Output arm (7).

2. a kind of manual actuator that can be locked according to claim 1, it is characterised in that：The locking unit slits There are two mouths (41), and is oppositely arranged.

3. a kind of manual actuator that can be locked according to claim 1, it is characterised in that：The nozzle of institute's pipe sleeve (3) Inner wall is equipped with rubber pad (8).

4. a kind of manual actuator that can be locked according to claim 1, it is characterised in that：The worm gear (1) is fan Shape.

5. a kind of manual actuator that can be locked according to claim 1, it is characterised in that：The output shaft (6) The pointer (9) rotated synchronously is fixed in one end, and corresponding mark (10) is equipped with along pointer (9) rotation path.

6. a kind of manual actuator that can be locked according to claim 1, it is characterised in that：The worm gear (1) with it is defeated Shaft (6) is keyed.

7. a kind of manual actuator that can be locked according to claim 1, it is characterised in that：Worm screw (2) top Equipped with handwheel (11).