Multipath nozzle baffle structure for positioner

Abstract

The multi-path nozzle baffle structure comprises a multi-path nozzle and a baffle, the multi-path nozzle comprises a shell, a nozzle body and an arch-shaped sealing ring, and an air channel is formed in the shell; the nozzle body comprises a head part, a nozzle main body and three nozzles which are connected into a whole, the three nozzles are uniformly distributed in the circumferential direction of the outer end face of the nozzle main body and correspond to the baffle in position, the nozzle main body is provided with three nozzle air inlet and outlet groups which are uniformly distributed in the circumferential direction of the nozzle main body, and the three nozzle air inlet and outlet groups are respectively communicated with the three nozzles; the head and the nozzle body are both located in the shell and rotationally connected. The arch-shaped sealing ring is fixed in the shell and rotationally connected with the nozzle body, and the arch-shaped sealing ring surrounds the two nozzle air inlet and outlet sets, so that the remaining nozzle air inlet and outlet set communicates with the air channel. When one nozzle channel is blocked by a foreign matter, the nozzle body is rotated by a certain angle so that the unblocked nozzle channel can be connected into the air channel, and the positioner fault caused by blockage of the nozzle can be rapidly solved.

Description

Technical Field

[0001] The present invention relates to the technical field of nozzle baffles, and more particularly to a multi-channel nozzle baffle structure for a positioner. Background Art

[0002] The nozzles used in the nozzle baffle structure of the IP component for the current positioner usually have a micropore diameter of only a few tenths of a millimeter. Under complex working conditions on site, due to unclean air source and failure of the pre-filter device, or when the site is in a maintenance cycle and the positioner is cut off from air and power for a long time, the micropores are easily blocked by oil or other foreign matter, resulting in failure. The positioner needs to be returned to the manufacturer for professional technicians to use professional equipment for repair and cleaning. In short, the micropores of the nozzle baffle structure for the current positioner are easily blocked, and it is complicated to clean after blockage, which will cause equipment failure and lead to production suspension, resulting in economic losses.

[0003] Therefore, providing a multi-way nozzle baffle structure for a positioner is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0004] In view of this, the present invention provides a multi-way nozzle baffle structure for a positioner, which can quickly solve the positioner failure caused by nozzle blockage.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A multi-way nozzle baffle structure for a positioner, comprising a multi-way nozzle and a baffle, the multi-way nozzle comprising a shell, a nozzle body and an arched sealing ring, the shell having an air passage inside; the nozzle body comprising a head, a nozzle body and N nozzles connected as a whole in sequence from left to right, the N nozzles being evenly distributed along the circumference of the outer end surface of the nozzle body and corresponding to the position of the baffle, the nozzle body having N nozzle inlet and outlet groups evenly distributed along its circumference, the N nozzle inlet and outlet groups being connected to the N nozzles respectively; the head and the nozzle body are both located inside the shell and rotatably connected; the arched sealing ring is fixed inside the shell and rotatably connected to the nozzle body, and the arched sealing ring is arranged around N-1 nozzle inlet and outlet groups, so that the remaining one nozzle inlet and outlet group is connected to the air passage.

[0007] By adopting the above technical solution, the present invention produces the following beneficial effects:

[0008] When one of the nozzle channels is blocked by foreign matter, the nozzle body is rotated at a certain angle to connect the unblocked nozzle channel to the airway, so that the positioner can resume normal use in a short time, thereby improving work efficiency and reducing production and maintenance costs.

[0009] Furthermore, the arched sealing ring is arranged around the N-1 nozzle air inlet and outlet groups located at the upper part, so that the remaining nozzle air inlet and outlet group located at the lower part is connected to the airway; a first alignment line is arranged at the bottom center of the outer side surface of the shell, and N second alignment lines are arranged on the outer side surface of the head, respectively corresponding to the positions of the N nozzles.

[0010] The beneficial effect of adopting the above further technical solution is to ensure the accuracy of the rotation angle.

[0011] Furthermore, the outer side surface of the head has a rotation driving groove.

[0012] The beneficial effect of adopting the above further technical solution is that the rotation operation is facilitated.

[0013] Furthermore, N=3.

[0014] Furthermore, each of the nozzles has a nozzle baffle air outlet corresponding to the baffle position; the nozzle inlet and outlet group includes a nozzle air inlet and a nozzle air outlet that are connected, the nozzle air inlet is connected to the airway air inlet, the nozzle air outlet is connected to the airway air outlet, and the nozzle baffle air outlet is connected to the nozzle air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of a multi-way nozzle baffle structure for a positioner provided by the present invention;

[0017] Figure 2 The accompanying drawing is a cross-sectional view of a multi-way nozzle baffle structure for a positioner provided by the present invention;

[0018] Figure 3 The accompanying drawing is a schematic structural diagram of the multi-channel nozzle provided by the present invention without the housing;

[0019] Figure 4 The accompanying drawing is a structural schematic diagram of the multi-channel nozzle provided by the present invention with the shell removed from another viewing angle;

[0020] Figure 5 The accompanying drawing is a schematic structural diagram of the multi-way nozzle conversion seal provided by the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-5 As shown, an embodiment of the present invention discloses a multi-way nozzle baffle structure for a positioner, including a multi-way nozzle 1 and a baffle 2. The multi-way nozzle 1 includes a shell 11, a nozzle body 12 and an arched sealing ring 13. The shell 11 has an air passage 111 inside; the nozzle body 12 includes a head 121, a nozzle body 122 and N nozzles 123 connected as one from left to right. In this embodiment, N=3, and the three nozzles 123 are evenly distributed along the circumferential direction of the outer end surface of the nozzle body 122 and correspond to the position of the baffle 2. The nozzle body 122 has three nozzle inlet and outlet groups 1221 evenly distributed along its circumference, and the three nozzle inlet and outlet groups 1221 are respectively connected to the three nozzles 123; the head 121 and the nozzle body 122 are both located inside the shell 11 and are rotatably connected; the arched sealing ring 13 is fixed inside the shell 11 and is rotatably connected to the nozzle body 122, and the arched sealing ring 13 is surrounded on two nozzle inlet and outlet groups 1221, so that the remaining nozzle inlet and outlet group 1221 is connected to the airway 111. In the present invention, when one of the nozzle channels is blocked by foreign matter, the nozzle body 12 is rotated at a certain angle to connect the unblocked nozzle channel to the airway, so that the positioner can be restored to normal use in a short time, which improves work efficiency and reduces production and maintenance costs.

[0023] In order to further optimize the technical solution of the present invention, the arched sealing ring 13 is arranged around the two nozzle inlet and outlet groups 1221 located at the upper part, so that the remaining nozzle inlet and outlet group 1221 located at the lower part is connected to the airway 111; a first alignment line 3 is arranged at the center of the bottom of the outer side surface of the shell 11, and three second alignment lines 4 corresponding to the positions of the three nozzles 123 are arranged on the outer side surface of the head 121, that is, the angular interval between the second alignment lines 4 is 120° to ensure the accuracy of the rotation angle.

[0024] In order to further optimize the technical solution of the present invention, the outer side surface of the head 121 is provided with a rotation driving groove 5 to facilitate the rotation operation.

[0025] Specifically, each nozzle 123 has a nozzle baffle air outlet 1231 corresponding to the position of the baffle 2; the nozzle inlet and outlet group 1221 includes a nozzle air inlet 12211 and a nozzle air outlet 12212 that are connected to each other, the nozzle air inlet 12211 is connected to the airway air inlet 1111, the nozzle air outlet 12212 is connected to the airway air outlet 1112, and the nozzle baffle air outlet 1231 is connected to the nozzle air inlet 12211.

[0026] Specifically, the structure driving the baffle 2 to translate includes an iron core, a coil, an armature and a terminal. When the positioner works normally, the terminal receives an electrical signal from the outside and transmits the electrical signal to the coil. When the coil is energized, a magnetic field of corresponding strength is generated to attract the armature to approach the coil, thereby driving the baffle 2 to move toward the multi-way nozzle 1. When the distance between the multi-way nozzle 1 and the baffle 2 is reduced, the gas output of the nozzle baffle outlet 1231 of the corresponding nozzle 123 is reduced, and more gas enters the subsequent pneumatic amplifier through the airway inlet 1111, the nozzle inlet 12211, the nozzle outlet 12212 and the airway outlet 1112. This process converts the electrical signal into a pneumatic signal and then amplifies it for use.

[0027] Working principle of the present invention:

[0028] When a nozzle channel is blocked by foreign matter, use a screwdriver to insert into the rotation drive groove 5, rotate the nozzle body 12 in the clockwise direction, and stop rotating when the second alignment line 4 corresponding to the other nozzle 123 is aligned with the first alignment line 3 on the shell 11. At this time, the other nozzle air inlet 12211 of the nozzle body 122 is connected with the airway air inlet 1111, and the other nozzle air outlet 12212 is connected with the airway air outlet 1112 to form the entire passage, and the remaining nozzle air inlet 12211 and nozzle air outlet 12212 are rotated to the arch sealing ring 13 and are completely sealed to be disconnected from the airway air inlet 1111 and the airway air outlet 1112.

[0029] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-way nozzle baffle structure for a positioner, comprising a multi-way nozzle and a baffle, characterized in that: The multi-way nozzle includes a shell, a nozzle body and an arched sealing ring, and an air passage is provided inside the shell; the nozzle body includes a head, a nozzle body and N nozzles connected as a whole in sequence from left to right, the N nozzles are evenly distributed along the circumference of the outer end surface of the nozzle body and correspond to the position of the baffle, the nozzle body has N nozzle inlet and outlet groups evenly distributed along its circumference, and the N nozzle inlet and outlet groups are respectively connected to the N nozzles; the head and the nozzle body are both located inside the shell and rotatably connected; the arched sealing ring is fixed inside the shell and rotatably connected to the nozzle body, and the arched sealing ring is arranged around N-1 nozzle inlet and outlet groups, so that the remaining one nozzle inlet and outlet group is connected to the air passage.

2. A multi-way nozzle baffle structure for a positioner according to claim 1, characterized in that: The arched sealing ring is arranged around the N-1 nozzle air inlet and outlet groups located at the upper part, so that the remaining nozzle air inlet and outlet group located at the lower part is connected to the airway; a first alignment line is arranged at the center of the bottom of the outer side surface of the shell, and N second alignment lines are arranged on the outer side surface of the head, respectively corresponding to the positions of the N nozzles.

3. A multi-way nozzle baffle structure for a positioner according to claim 1 or 2, characterized in that: The outer side surface of the head is provided with a rotation driving groove.

4. A multi-way nozzle baffle structure for a positioner according to claim 1 or 2, characterized in that: N＝3。 5. A multi-way nozzle baffle structure for a positioner according to claim 1, characterized in that: Each of the nozzles has a nozzle baffle air outlet corresponding to the baffle position; the nozzle inlet and outlet group includes a nozzle air inlet and a nozzle air outlet that are connected, the nozzle air inlet is connected to the airway air inlet, the nozzle air outlet is connected to the airway air outlet, and the nozzle baffle air outlet is connected to the nozzle air inlet.

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