CN209638503U - A kind of pneumatic actuator with limit switches - Google Patents

Abstract

The utility model relates to pneumatic actuator technical fields, and disclose a kind of pneumatic actuator with limit switches, including shell, the bottom of the shell is fixedly installed with the first mounting base, the internal activity of first mounting base is equipped with through the first mounting base and extends to the shaft of interior of shell, and the outside of the shaft is fixedly installed with the gear inside the first mounting base.The pneumatic actuator with limit switches, entered by gas by the air inlet that outer casing frontispiece is arranged, drive the pneumatic actuator running of interior of shell, to drive shaft to rotate, the rotation of shaft rotation driven gear, to be moved left and right with carry-over bar, to drive connecting plate to move left and right, when shaft, which rotates, limits angle, limit switches work, to stop giving air inlet air inlet, so that the pneumatic actuator can close gas in time, reduce pneumatic actuator hair into the probability of failure, is effectively increased the service life of the pneumatic actuator.

Description

A kind of pneumatic actuator with limit switches

Technical field

The utility model relates to pneumatic actuator technical field, specially a kind of pneumatic actuator with limit switches.

Background technique

Pneumatic actuator is the executive device with the opening and closing of air pressure power drive or control valve, but by title pneumatic actuator or Pneumatic device, but general popular referred to as pneumatic head, pneumatic actuator are also equipped with certain auxiliary device sometimes, commonly There are valve positioner and handwheel, the effect of valve positioner is to improve the performance of actuator using feedback principle, makes to hold Row device can realize that accurately positioning, the effect of handwheel are when control system is because having a power failure, stopping by the control signal of controller Gas, controller without output or when executing agency's failure, using it can direct manipulation and control valve, with maintain production it is normal into Row.

Gas can not close existing pneumatic controller in time when in use, be easy so that event occurs for pneumatic controller Barrier, reduces the service life of pneumatic controller, while the installation of pneumatic controller is more troublesome, is not easy to operate, so mention A kind of pneumatic actuator with limit switches is gone out.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of pneumatic actuator with limit switches, has just In the installation the advantages that, solving existing pneumatic controller, gas can not close in time when in use, be easy so that pneumatic control Device processed breaks down, and reduces the service life of pneumatic controller, while the installation of pneumatic controller is more troublesome, is not easy to grasp The problem of making.

(2) technical solution

To realize the above-mentioned purpose being easily installed, the utility model provides the following technical solutions: a kind of with limit switches Pneumatic actuator, including shell, the bottom of the shell are fixedly installed with the first mounting base, and the inside of first mounting base is living The dynamic shaft for being equipped with through the first mounting base and extending to interior of shell, the outside of the shaft is fixedly installed with positioned at first Gear inside mounting base, the internal activity of first mounting base are equipped with the rack gear positioned at gear back, rack and pinion It engages, the connecting plate extended on the right side of the first mounting base is fixedly installed on the right side of the rack gear, the right side of the connecting plate is solid Dingan County is equipped with the limit switches positioned at outer casing bottom, and the bottom of the shaft is fixedly installed with the company positioned at the first mounting base bottom Block is connect, the bottom of first mounting base is fixedly installed with the attachment base outside link block, and the inside of the link block is solid Dingan County is equipped with the first stabilizing spring, and the internal activity of the link block is equipped with the second installation positioned at the first stabilizing spring bottom Seat, the bottom of second mounting base are movably installed with connecting shaft, and the bottom of the attachment base is fixedly installed with positioned at connecting shaft External pedestal, the bottom of the pedestal are fixedly installed with valve pocket, and the bottom of the connecting shaft is fixedly installed in valve pocket The spool in portion, the bottom of the attachment base are fixedly installed with the fixation fixture block positioned at chassis interior, the internal activity of the pedestal Active fastening block is installed, the outside of the active fastening block is socketed with the second stabilizing spring positioned at chassis interior, the active card Block is fixedly installed with the handle positioned at base exterior far from the side of fixed fixture block.

Preferably, cross protrusion is provided at the top of the connecting shaft, the bottom of the second mounting base offers cross Groove, protrusion are adapted with groove, and protrusion is located at the inside of groove.

Preferably, the inner wall of the link block offers sliding slot, and the quantity of sliding slot is four, and four sliding slots are uniformly distributed in The inner wall of link block.

Preferably, the outside of second mounting base is provided with sliding block, and the quantity of sliding block is four, and sliding block is mutually fitted with sliding slot Match, four sliding blocks are uniformly distributed in the inside of four sliding slots.

Preferably, the inside of the pedestal offers loose slot, and the quantity of loose slot is two, loose slot and fixed fixture block It is adapted, the quantity of fixed fixture block is two, and two fixed fixture blocks are located at the inside of two loose slots.

Preferably, the inside of the pedestal offers limit hole, and the outside of active fastening block is provided with limit plate, limit plate with Limit hole is adapted, and limit plate is located at the inside of limit hole.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of pneumatic actuator with limit switches, and having following has Beneficial effect:

The pneumatic actuator with limit switches is entered by the air inlet that outer casing frontispiece is arranged by gas, drives shell Internal pneumatic actuator running, so that shaft is driven to rotate, shaft rotation driven gear rotation, thus with carry-over bar or so It is mobile, so that connecting plate is driven to move left and right, when shaft, which rotates, limits angle, limit switches work, to stop to air inlet Gas inlet hole reduces pneumatic actuator hair into the probability of failure so that the pneumatic actuator can close gas in time, It is effectively increased the service life of the pneumatic actuator, when installing the pneumatic actuator, passes through what is be arranged at the top of connecting shaft The cross groove that cross protrusion and the second mounting base bottom open up, while increasing shaft and connecting shaft transmission stability, The case where avoiding setup error, by fixed fixture block, active fastening block, the first stabilizing spring and the second stabilizing spring, not only just In the installation of the pneumatic actuator, it is also effectively increased the stability of the pneumatic actuator.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is structure enlargement diagram at the utility model A.

In figure: 1 shell, 2 first mounting bases, 3 shafts, 4 gears, 5 rack gears, 6 connecting plates, 7 limit switches, 8 link blocks, 9 Attachment base, 10 first stabilizing springs, 11 second mounting bases, 12 connecting shafts, 13 pedestals, 14 valve pockets, 15 spools, 16 fixed fixture blocks, 17 active fastening blocks, 18 second stabilizing springs, 19 handles.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

A kind of pneumatic actuator with limit switches referring to FIG. 1-2, including shell 1, the front of shell 1 be provided with into Stomata and venthole, shell 1 are internally provided with pneumatic actuator, and the bottom of shell 1 is fixedly installed with the first mounting base 2, The internal activity of first mounting base 2 is equipped with through the first mounting base 2 and extends to the shaft 3 inside shell 1, outside shaft 3 Portion is fixedly installed with the gear 4 inside the first mounting base 2, and the internal activity of the first mounting base 2 is equipped with to be carried on the back positioned at gear 4 The rack gear 5 in portion, rack gear 5 are engaged with gear 4, and the right side of rack gear 5 is fixedly installed with the connecting plate for extending to 2 right side of the first mounting base 6, the right side of connecting plate 6 is fixedly installed with the limit switches 7 positioned at 1 bottom of shell, and the model HL-5030 of limit switches 7 turns The bottom of axis 3 is fixedly installed with the link block 8 positioned at 2 bottom of the first mounting base, and the inner wall of link block 8 offers sliding slot, sliding slot Quantity be four, four sliding slots are uniformly distributed in the inner wall of link block 8, and the bottom of the first mounting base 2, which is fixedly installed with, to be located at Attachment base 9 outside link block 8, the inside of link block 8 are fixedly installed with the first stabilizing spring 10, the internal activity of link block 8 The second mounting base 11 positioned at 10 bottom of the first stabilizing spring is installed, the outside of the second mounting base 11 is provided with sliding block, sliding block Quantity be four, sliding block is adapted with sliding slot, and four sliding blocks are uniformly distributed in the inside of four sliding slots, the second mounting base 11 Bottom is movably installed with connecting shaft 12, and the top of connecting shaft 12 is provided with cross protrusion, and the bottom of the second mounting base 11 opens up There is cross groove, protrusion is adapted with groove, and protrusion is located at the inside of groove, and the bottom of attachment base 9, which is fixedly installed with, to be located at Pedestal 13 outside connecting shaft 12, the bottom of pedestal 13 are fixedly installed with valve pocket 14, and the bottom of connecting shaft 12 is fixedly installed with position Spool 15 inside valve pocket 14, the bottom of attachment base 9 are fixedly installed with the fixation fixture block 16 inside pedestal 13, pedestal 13 Inside offer loose slot, the quantity of loose slot is two, and loose slot is adapted with fixed fixture block 16, the number of fixation fixture block 16 Amount is two, and two fixed fixture blocks 16 are located at the inside of two loose slots, and the internal activity of pedestal 13 is equipped with active card Block 17, the inside of pedestal 13 offer limit hole, and the outside of active fastening block 17 is provided with limit plate, and limit plate is mutually fitted with limit hole Match, limit plate is located at the inside of limit hole, and the outside of active fastening block 17 is socketed with the second stabilizing spring inside pedestal 13 18, active fastening block 17 is fixedly installed with the handle 19 outside pedestal 13 far from the side of fixed fixture block 16, the band limit valve The pneumatic actuator of door is entered by the air inlet of 1 front setting of shell by gas, drives the pneumatic gearing machine inside shell 1 Structure running, so that shaft 3 is driven to rotate, 3 rotation driven gear 4 of shaft rotation, to be moved left and right with carry-over bar 5, thus band Dynamic connecting plate 6 moves left and right, and when shaft 3, which rotates, limits angle, limit switches 7 work, thus stop giving air inlet air inlet, from And the pneumatic actuator is enabled to close gas in time, reduce pneumatic actuator hair into the probability of failure, effective increasing The service life for having added the pneumatic actuator passes through the cross being arranged at the top of connecting shaft 12 when installing the pneumatic actuator The cross groove that protrusion and 11 bottom of the second mounting base open up is kept away while increasing shaft 3 and 12 transmission stability of connecting shaft The case where having exempted from setup error, by fixing fixture block 16, active fastening block 17, the first stabilizing spring 10 and the second stabilizing spring 18, It is not only convenient for the installation of the pneumatic actuator, is also effectively increased the stability of the pneumatic actuator.

In conclusion the pneumatic actuator with limit switches, by gas by 1 front setting of shell air inlet into Enter, drives the pneumatic actuator running inside shell 1, so that shaft 3 is driven to rotate, the rotation of 3 rotation driven gear 4 of shaft, To be moved left and right with carry-over bar 5, so that connecting plate 6 is driven to move left and right, when shaft 3, which rotates, limits angle, limit switches 7 Work, so that the pneumatic actuator can close gas in time, reduces this and pneumatically holds to stop giving air inlet air inlet Row device sends out the probability at failure, is effectively increased the service life of the pneumatic actuator, when installing the pneumatic actuator, leads to It crosses the cross protrusion being arranged at the top of connecting shaft 12 and cross groove that 11 bottom of the second mounting base opens up, increases by 3 He of shaft While 12 transmission stability of connecting shaft, the case where avoiding setup error, passes through fixed fixture block 16, active fastening block 17, first Stabilizing spring 10 and the second stabilizing spring 18, are not only convenient for the installation of the pneumatic actuator, are also effectively increased this and pneumatically hold The stability of row device, solving existing pneumatic controller, gas can not close in time when in use, be easy so that pneumatic control Device processed breaks down, and reduces the service life of pneumatic controller, while the installation of pneumatic controller is more troublesome, is not easy to grasp The problem of making.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of pneumatic actuator with limit switches, including shell (1), it is characterised in that: the bottom of the shell (1) is fixed It is equipped with the first mounting base (2), the internal activity of first mounting base (2) is equipped with through the first mounting base (2) and extends The shaft (3) internal to shell (1), the outside of the shaft (3) are fixedly installed with the gear internal positioned at the first mounting base (2) (4), the internal activity of first mounting base (2) is equipped with the rack gear (5) positioned at gear (4) back, rack gear (5) and gear (4) it engages, is fixedly installed with the connecting plate (6) extended on the right side of the first mounting base (2), the company on the right side of the rack gear (5) The limit switches (7) positioned at shell (1) bottom are fixedly installed on the right side of fishplate bar (6), the bottom of the shaft (3) is fixedly mounted There is the link block (8) positioned at the first mounting base (2) bottom, the bottom of first mounting base (2), which is fixedly installed with, is located at connection The external attachment base (9) of block (8), the inside of the link block (8) is fixedly installed with the first stabilizing spring (10), the link block (8) internal activity is equipped with the second mounting base (11) positioned at the first stabilizing spring (10) bottom, second mounting base (11) bottom is movably installed with connecting shaft (12), and the bottom of the attachment base (9) is fixedly installed with positioned at connecting shaft (12) outside The bottom of the pedestal (13) in portion, the pedestal (13) is fixedly installed with valve pocket (14), the fixed peace in the bottom of the connecting shaft (12) Equipped with valve pocket (14) internal spool (15) is located at, the bottom of the attachment base (9) is fixedly installed with internal positioned at pedestal (13) Fixation fixture block (16), the internal activity of the pedestal (13) is equipped with active fastening block (17), the active fastening block (17) it is outer Portion is socketed with second stabilizing spring (18) internal positioned at pedestal (13), and the active fastening block (17) is far from fixed fixture block (16) Side is fixedly installed with the handle (19) external positioned at pedestal (13).

2. a kind of pneumatic actuator with limit switches according to claim 1, it is characterised in that: the connecting shaft (12) Top be provided with cross protrusion, the bottom of the second mounting base (11) offers cross groove, and protrusion is adapted with groove, Protrusion is located at the inside of groove.

3. a kind of pneumatic actuator with limit switches according to claim 1, it is characterised in that: the link block (8) Inner wall offer sliding slot, the quantity of sliding slot is four, and four sliding slots are uniformly distributed in the inner wall of link block (8).

4. a kind of pneumatic actuator with limit switches according to claim 3, it is characterised in that: second mounting base (11) outside is provided with sliding block, and the quantity of sliding block is four, and sliding block is adapted with sliding slot, and four sliding blocks are uniformly distributed in four The inside of sliding slot.

5. a kind of pneumatic actuator with limit switches according to claim 1, it is characterised in that: the pedestal (13) Inside offers loose slot, and the quantity of loose slot is two, and loose slot is adapted with fixed fixture block (16), fixed fixture block (16) Quantity is two, and two fixed fixture blocks (16) are located at the inside of two loose slots.

6. a kind of pneumatic actuator with limit switches according to claim 1, it is characterised in that: the pedestal (13) Inside offers limit hole, and the outside of active fastening block (17) is provided with limit plate, and limit plate is adapted with limit hole, limit plate position In the inside of limit hole.