CN210600354U

CN210600354U - Fool-proof mounting mechanism for intelligent control valve

Info

Publication number: CN210600354U
Application number: CN201921405237.2U
Authority: CN
Inventors: 陈伟铭; 叶胜娟; 吴祥伟
Original assignee: Anhui Shuilian Water Technology Co ltd
Current assignee: Anhui Shuilian Water Technology Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-22
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to an intelligent control valve technical field, concretely relates to prevent slow-witted formula installation mechanism for intelligent control valve, spliced pole, protection component under spliced pole, first spliced pole, second on last casing, lower casing, screw hole, display screen observation window, control button, first spliced pole, the second. The utility model has the advantages that: through to first last spliced pole, the spliced pole is gone up to the second, first spliced pole, the spliced pole length is injectd under the second, set up the length sum and the last casing of first spliced pole and first spliced pole simultaneously, the high sum of inner chamber of casing is unanimous down, when making the workman assemble, first last spliced pole can only correspond with first spliced pole, spliced pole can only be under with the second on the second simultaneously, otherwise go up the casing, the unable lid of casing closes down, have great space, make the intelligent control valve have at least to a certain extent prevented the function of slow-witted formula installation (assembly), and simple structure.

Description

Fool-proof mounting mechanism for intelligent control valve

Technical Field

The utility model relates to an intelligent control valve technical field, concretely relates to prevent slow-witted formula installation mechanism for intelligent control valve.

Background

The intelligent control valve is a control valve with a microprocessor and capable of realizing intelligent control function, and the control valve is composed of an intelligent servo amplifier, a digital operator, a speed reducing mechanism, a valve position detection and transmission device, an electric control valve and the like. The main difference from the general electric control valve is that a servo amplifier with an intelligent function is adopted. The intelligent servo amplifier is a miniature computer, it receives standard analog current or voltage signal, and converts it into digital signal by A/D conversion, the microprocessor compares the input signal with the set signal, and operates according to a certain control rule, and the output signal drives the corresponding electric control valve after D/A conversion. Similar to the working principle of a pneumatic control valve with an intelligent valve positioner, the intelligent electric control valve has the main difference that the electric control valve is adopted, so that a signal is output to a motor (which can be a single-phase or three-phase motor), and the opening degree of the electric valve is changed after the signal passes through a speed reducer. The intelligent electric valve also adopts the nonlinear characteristic of the set loop to compensate the nonlinear characteristic of the controlled object, thereby avoiding the unstable phenomenon of the control system caused by the nonlinearity of the feedback loop. Meanwhile, due to the fact that nonlinear compensation is achieved in a digital mode, the position of each broken line point in the nonlinear compensation link can be determined according to the pressure drop ratio of the control valve and the required working flow characteristics.

When an upper shell and a lower shell on the existing intelligent control valve are assembled, workers are required to assemble in a manual mode (common small and medium enterprises still adopt the operation mode), namely, four screws are used and penetrate through four screw through holes on the upper shell and are in threaded connection with the lower shell, so that the upper shell is connected with the lower shell, but because a display screen observation window and a control button are generally arranged on the upper shell, the display screen observation window needs to correspond to a display screen arranged in an inner cavity of the lower shell, and the control button also needs to correspond to a control device arranged in the inner cavity of the lower shell, therefore, when the intelligent control valve is assembled by the workers, the electronic components in the lower shell need to be firstly visually observed, then the position of the upper shell is corrected, and the display screen observation window and the control button of the upper shell can respectively correspond to the display screen, the control device electronic components and the like on the lower shell, for example, the worker is a beginner, the product structure is not clear, after the assembly, the upper shell and the lower shell are assembled to fail and need to be reworked again, in addition, the operation mode tests the eyesight and physical strength of the worker, the worker fatigue is caused to a certain extent, and therefore the problem needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that exists among the prior art, provide a prevent slow-witted formula installation mechanism for intelligent control valve, it can realize making the workman to a certain extent at least when assembling the last casing of intelligent control valve, lower casing, reduce the assembly error rate.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

a foolproof installation mechanism for an intelligent control valve comprises an upper shell and a lower shell of the intelligent control valve, wherein the upper shell is connected with the lower shell through screws, four screw holes for screws to pass through are correspondingly arranged on the upper shell, a display screen observation window and a plurality of control buttons are arranged on the upper shell, a first upper connecting column and a second upper connecting column which are coaxial with the screw holes and hollow are correspondingly arranged in pairs in an inner cavity of the upper shell, the length of the first upper connecting column is greater than that of the second upper connecting column and protrudes out of the bottom surface of the upper shell, a first lower connecting column and a second lower connecting column which are corresponding to the first upper connecting column and the second upper connecting column are respectively arranged in the inner cavity of the lower shell, the length of the first upper connecting column and the length of the first lower connecting column are shorter than that of the second lower connecting column and protrude out of the top surface of the lower shell, and the sum of the lengths of the first upper connecting column and the, and the length sum equals to the height sum of the inner cavities of the upper shell and the lower shell, the first lower connecting column and the second lower connecting column are coaxially provided with threaded holes in the form of through holes, and the upper shell is provided with a protection component for protecting the display screen observation window and the control button.

Furthermore, the protection assembly comprises a protection plate and two side plates, the protection plate is horizontally arranged above the upper shell, the two side plates are vertically arranged on two opposite sides of the upper shell, so that a protection space surrounding the upper shell is formed by the protection plate and the two side plates in a surrounding mode, and the protection assembly is connected to the lower shell in a sliding mode.

Further, the protection plate is integrally formed with the two side plates.

Furthermore, a through groove corresponding to the display screen observation window is formed in the protection plate, and a transparent protective cover is installed in the through groove.

Further, the transparent protective cover is acrylic glass.

Furthermore, two outer walls of the lower shell corresponding to the two side plates are respectively provided with a supporting block, the bottoms of the two side plates are horizontally provided with a connecting rod, each connecting rod is horizontally provided with a sliding shaft which penetrates through the supporting block in a sliding manner, the corresponding supporting block is provided with a through hole for the sliding shaft to freely pass through, and the side plates are provided with clearance grooves for avoiding the supporting block.

Furthermore, one end, far away from the connecting rod, of the sliding shaft is provided with an external thread, the external thread is matched with a nut, an elastic piece is arranged between the nut and the connecting rod, and the elastic piece is used for abutting against the nut and driving the nut to move towards the direction far away from the connecting rod.

Furthermore, the elastic part is a spring, the spring is sleeved on the sliding shaft, and two ends of the spring in the elastic direction respectively abut against the nut and the supporting block.

The utility model has the advantages that: the intelligent control valve is provided with the first upper connecting column, the second upper connecting column, the first lower connecting column and the second lower connecting column, the lengths of the first upper connecting column, the second upper connecting column, the first lower connecting column and the second lower connecting column are limited, and the sum of the lengths of the first upper connecting column and the first lower connecting column is consistent with the sum of the heights of the inner cavities of the upper shell and the lower shell, so that when workers assemble the intelligent control valve, the first upper connecting column can only correspond to the first lower connecting column, the second upper connecting column can only correspond to the second lower connecting column, otherwise, the upper shell and the lower shell cannot be covered, and a larger gap is formed, in sum, the intelligent control valve has the function of foolproof installation (assembly) at least to a certain extent through the arrangement, the intelligent control valve is simple in structure and low in manufacturing cost, in addition, a protection component is also arranged, and the control button and a display screen observation window on the upper shell can be protected to a, meanwhile, when the maintenance personnel overhaul the external pipeline, the phenomenon of misoperation is caused by misoperation of the control button, and in addition, the protection assembly can automatically reset without manual operation of operation personnel by arranging parts such as a spring, a connecting rod, a sliding shaft and a nut, so that the loss phenomenon is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the perspective structure of FIG. 1;

fig. 3 is a schematic perspective view of the upper housing of the present invention;

the reference numerals are explained below:

1-upper shell, 2-lower shell, 3-screw hole, 4-display screen observation window, 5-first upper connecting column, 6-second upper connecting column, 7-first lower connecting column, 8-second lower connecting column, 9-protection plate, 10-side plate, 11-through groove, 12-supporting block, 13-connecting rod, 14-sliding shaft, 15-through hole, 16-clearance groove, 17-external thread, 18-nut and 19-spring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-3, the foolproof mounting mechanism for the intelligent control valve comprises an upper shell 1 and a lower shell 2 of the intelligent control valve, wherein the upper shell 1 and the lower shell 2 are connected through screws (not shown in the figure), four screw holes 3 for screws to pass through are correspondingly arranged on the upper shell 1, a display screen observation window 4 and a plurality of control buttons are arranged on the upper shell 1, a first upper connecting column 5 and a second upper connecting column 6 which are coaxial with the screw holes 3 and hollow are correspondingly arranged in pairs in an inner cavity of the upper shell 1, the length of the first upper connecting column 5 is larger than that of the second upper connecting column 6 and protrudes out of the bottom surface of the upper shell 1, a first lower connecting column 7 and a second lower connecting column 8 which are corresponding to the first upper connecting column 5 and the second upper connecting column 6 are respectively arranged in the inner cavity of the lower shell 2, the length of the first lower connecting column 7 is shorter than that of the second, the protective component protrudes out of the top surface of the lower shell 2, the total length of the first upper connecting column 5 and the first lower connecting column 7 is equal to the total length of the second upper connecting column 6 and the second lower connecting column 8, the total length is equal to the total height of the inner cavities of the upper shell 1 and the lower shell 2, the first lower connecting column 7 and the second lower connecting column 8 are coaxially provided with threaded holes in a through hole form respectively, the upper shell 1 is provided with a protective component for protecting the display screen observation window 4 and the control button on the upper shell, the protective component comprises a protective plate 9 and two side plates 10, the protective plate 9 is horizontally arranged above the upper shell 1, the two side plates 10 are vertically arranged at two opposite sides of the upper shell 1, so that a protective space surrounding the upper shell 1 is formed between the protective plate 9 and the two side plates 10, and in addition, the protective plate 9 can be integrally formed with the two side plates 10, for example, the protective component is formed by bending a bending machine, so that the protective component is convenient to mount and dismount, a through groove 11 corresponding to the display screen observation window 4 is formed in the protective plate 9, a transparent protective cover is mounted in the through groove 11, the transparent protective cover can be made of acrylic glass or toughened glass, the protective component is connected to the lower shell 2 in a sliding manner, specifically, two outer walls of the lower shell 2 corresponding to the two side plates 10 are respectively provided with a supporting block 12, the bottoms of the two side plates 10 are horizontally provided with a connecting rod 13, the two connecting rods 13 are respectively horizontally provided with a sliding shaft 14 which is matched with the supporting block 12 in a sliding manner, the corresponding supporting block 12 is provided with a through hole 15 for the sliding shaft 14 to pass through freely, the side plates 10 are provided with clearance grooves 16 for avoiding the supporting blocks 12, and one end of the sliding shaft 14, which is far away from the, the external thread 17 is matched with a nut 18, a spring 19 is arranged between the nut 18 and the connecting rod 13, the spring 19 is sleeved on the sliding shaft 14, two ends of the spring in the elastic direction respectively abut against the nut 18 and the supporting block 12, the spring abuts against the nut 18 to drive the nut 18 to move in the direction away from the connecting rod 13, so that the protective plate 9 can automatically restore to the original position and continue to protect the upper shell 1, and in addition, the expansion amount of the spring 19 can be adjusted within a certain range by screwing the nut 18 on the external thread 17.

The utility model discloses when using: when the upper shell and the lower shell are assembled, firstly, a worker corresponds a first upper connecting column to a first lower connecting column and a second upper connecting column to a second lower connecting column according to the operation concept of 'long-to-short-to-long' and 'short-to-long' (also can be understood as contraposition), at the moment, the upper shell and the lower shell are basically positioned at the assembly position, then the upper shell and the lower shell are covered, at the moment, the key point is that the sum of the lengths of the first upper connecting column and the first lower connecting column and the sum of the lengths of the second upper connecting column and the second lower connecting column is equal to the sum of the heights of the inner cavities of the upper shell and the lower shell, if the sum is greater than the sum of the heights of the inner cavities of the upper shell and the lower shell, the upper shell and the lower shell cannot be assembled, and if the sum is smaller than the sum, a gap exists between the upper shell and the lower shell longitudinally, which influences, The mounting and assembling operation of the upper shell and the lower shell is completed in the threaded hole of the second lower connecting column;

the maintainer is when operating the intelligent control valve, at first the level promotes the guard plate, make the guard plate overcome the spring resistance, the direction of keeping away from the nut removes, and remove to making on the casing display screen observation window, control button homoenergetic is operated the position, then under the promotion prerequisite to the guard plate of not loosening, operate the intelligent control valve by workman oneself or other workman, after the operation finishes, only need loosen the guard plate can, because under the spring supports the top of nut, the guard plate can reset by oneself this moment, continue to protect last casing, to sum up, this intelligent control valve has easy and simple to handle, has to a certain extent at least and prevents slow-witted assembly function.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a prevent slow-witted formula installation mechanism for intelligent control valve, includes last casing (1), lower casing (2) of intelligent control valve, go up casing (1) and lower casing (2) and pass through the screw connection, correspond go up and be equipped with four screw holes (3) that supply the screw to pass on casing (1), it is equipped with display screen observation window (4) and a plurality of control button on going up casing (1), a serial communication port, two liang of correspond in pairs in going up casing (1) inner chamber and be equipped with casing (1) bottom surface on coaxial, hollow first last spliced pole (5) of screw hole (3), the second, first last spliced pole (5) length is greater than the second and goes up spliced pole (6) and its protrusion, be equipped with respectively in casing (2) inner chamber down with first last spliced pole (5), the corresponding first spliced pole (7) of spliced pole (6) on the second, Spliced pole (8) under the second, spliced pole (7) length is less than spliced pole (8) under the second, and its protrusion casing (2) top surface down, the length sum of spliced pole (5) and first spliced pole (7) equals the length sum of spliced pole (6) and spliced pole (8) under the second on the second, and the length sum equals go up casing (1), casing (2) inner chamber height sum down, each coaxial screw hole that is equipped with the through-hole form under first spliced pole (7), the second on spliced pole (8), be equipped with a protective component on last casing (1), be used for to it display screen observation window (4), control button protect.

2. The foolproof mounting mechanism for the intelligent control valve as claimed in claim 1, wherein the protection assembly comprises a protection plate (9) and two side plates (10), the protection plate (9) is horizontally arranged above the upper housing (1), the two side plates (10) are vertically arranged on two opposite sides of the upper housing (1), so that a protection space surrounding the upper housing (1) is defined between the protection plate (9) and the two side plates (10), and the protection assembly is slidably connected to the lower housing (2).

3. Foolproof mounting mechanism for smart control valves according to claim 2, characterized in that said protection plate (9) is integrally formed with two side plates (10).

4. The foolproof mounting mechanism for the intelligent control valve according to claim 2, characterized in that the protection plate (9) is provided with a through groove (11) corresponding to the display screen viewing window (4), and a transparent protective cover is mounted in the through groove (11).

5. The fool-proof mounting mechanism for intelligent control valves as recited in claim 4, wherein the transparent protective cover is acrylic glass.

6. The foolproof mounting mechanism for the intelligent control valve as claimed in claim 2, wherein the lower housing (2) is provided with a support block (12) on each of two outer walls corresponding to the two side plates (10), a connecting rod (13) is horizontally arranged at the bottom of the two side plates (10), a sliding shaft (14) which is slidably matched and penetrates through the support block (12) is horizontally arranged on each of the two connecting rods (13), a through hole (15) for the sliding shaft (14) to freely pass through is arranged on the corresponding support block (12), and a clearance groove (16) for avoiding the support block (12) is arranged on the side plate (10).

7. The foolproof mounting mechanism for the intelligent control valve as claimed in claim 6, wherein an external thread (17) is arranged at one end of the sliding shaft (14) far away from the connecting rod (13), a nut (18) is matched on the external thread (17), an elastic member is arranged between the nut (18) and the connecting rod (13), and the elastic member is used for abutting against the nut (18) to drive the nut (18) to move towards the direction far away from the connecting rod (13).

8. The foolproof mounting mechanism for the intelligent control valve as claimed in claim 7, wherein the elastic member is a spring (19), the spring (19) is sleeved on the sliding shaft (14), and two ends of the spring in the elastic direction respectively abut against the nut (18) and the supporting block (12).