CN219628070U - PLC control cabinet for natural gas pressure regulation control - Google Patents

Abstract

The utility model relates to a PLC control cabinet for regulating and controlling natural gas pressure, which comprises a plurality of cabinet bodies distributed side by side, wherein the front sides of the plurality of cabinet bodies are respectively provided with a cabinet door which can be opened and closed; the parts of the bottoms of the front sides of the plurality of cabinet bodies, which are close to the left sides of the cabinet bodies, are vertically and fixedly provided with positioning cylinders with open upper ends, and the parts of the bottoms of the front sides of the two cabinet bodies, which are close to the right sides of the cabinet bodies, are provided with positioning frames which can slide up and down and are positioned; the positioning frame on each cabinet body can be moved up to tightly press the cabinet door on the cabinet body or moved down to be detachably connected with the positioning cylinder on the adjacent cabinet body; the rear sides of two adjacent cabinet bodies are detachably connected through a connecting plate. The utility model has the advantages that the structure is simple, the design is reasonable, the quick connection between two adjacent cabinet bodies can be realized through the L-shaped frame, the orderly arrangement of a plurality of cabinet bodies is realized, and the displacement of the cabinet bodies is avoided; meanwhile, the cabinet door can be temporarily closed, a locking piece is not required to be used for locking the cabinet door, and the cabinet door is convenient to use.

Description

PLC control cabinet for natural gas pressure regulation control

Technical Field

The utility model relates to the technical field of control cabinets, in particular to a PLC control cabinet for natural gas pressure regulation control.

Background

The natural gas station control system mainly collects data such as liquid level, pressure, gasification sled temperature, pressure, water bath liquid level, temperature, odorizing liquid level, natural gas concentration, instantaneous flow, accumulated flow, valve state and the like of a natural gas storage tank and a tank box in real time through a natural gas PLC control cabinet.

Although single natural gas PLC switch board convenient to use, there is certain drawback to a plurality of PLC switch boards combination aspect: when a plurality of PLC control cabinets are used side by side, the single cabinet body is easy to shift after being collided, and the inclination of the position of the single cabinet body can influence the arrangement uniformity of a row of cabinet bodies; the existing cabinet body and cabinet door are opened and closed through the door lock assembly, and the door lock is used under the condition of temporarily closing the door, so that the subsequent opening is complicated, and the operation is inconvenient.

Disclosure of Invention

The utility model aims to solve the technical problem of the prior art by providing a PLC control cabinet for regulating and controlling the pressure of natural gas.

The technical scheme for solving the technical problems is as follows:

a PLC control cabinet for regulating and controlling the pressure of natural gas comprises a plurality of cabinet bodies which are distributed side by side, wherein the front sides of the plurality of cabinet bodies are respectively provided with a cabinet door which can be opened and closed; the parts, close to the left side, of the bottoms of the front sides of the cabinet bodies are vertically and fixedly provided with positioning cylinders with open upper ends, and the parts, close to the right side, of the bottoms of the front sides of the cabinet bodies are provided with positioning frames which can slide up and down and are positioned; the positioning frame on each cabinet body can be moved upwards to tightly press the cabinet door on the cabinet body or downwards to be detachably connected with the positioning cylinder on the adjacent cabinet body; the rear sides of two adjacent cabinet bodies are detachably connected through a connecting plate.

The beneficial effects of the utility model are as follows: when the cabinet is used, the positioning frame on each cabinet body can be moved upwards to tightly press the cabinet door on the cabinet body, so that the temporary closing of the cabinet door is realized, and a locking piece on the cabinet door is not required to be adopted to lock the cabinet door; or the locating rack moves down to be connected with the locating cylinder on the adjacent cabinet body in a detachable way, so that connection between the two adjacent cabinet bodies is realized, displacement of the cabinet bodies is prevented, and a plurality of cabinet bodies are ensured to be orderly arranged.

The utility model has simple structure and reasonable design, and can realize the quick connection between two adjacent cabinet bodies through the positioning frame, thereby realizing the orderly arrangement of a plurality of cabinet bodies and avoiding the displacement of the cabinet bodies; meanwhile, the cabinet door can be temporarily closed, a locking piece is not required to be used for locking the cabinet door, and the cabinet door is convenient to use.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the positioning frame comprises an L-shaped frame, the bending part of the L-shaped frame is in sliding connection with the bottom of the front side of the cabinet body through a sliding block, one end of the L-shaped frame extends vertically upwards, and the other end of the L-shaped frame extends horizontally; the L-shaped frame can be moved up to one end of the L-shaped frame to be tightly pressed against the corresponding cabinet door, or moved down to the other end of the L-shaped frame to be detachably connected with the corresponding positioning cylinder.

The beneficial effect of adopting the further scheme is that when in use, the L-shaped frame can be moved up to one end of the L-shaped frame to press the corresponding cabinet door, thereby realizing temporary closing of the cabinet door without locking the cabinet door by adopting a locking piece on the cabinet door; or the L-shaped frame moves downwards to the other end of the L-shaped frame to be detachably connected with the corresponding positioning cylinder, so that the connection between two adjacent cabinet bodies is realized, the displacement of the cabinet bodies is prevented, and the orderly arrangement of a plurality of cabinet bodies is ensured;

the scheme has simple structure and reasonable design, can realize temporary closing of the cabinet door by utilizing the special structure of the L-shaped frame, and can connect two adjacent cabinet bodies, thereby being convenient to use.

Further, a vertically extending chute is arranged at the bottom of the front side of the cabinet body close to the right side of the cabinet body, the sliding block can be installed in the chute in an up-down sliding mode, and the L-shaped frame is fixedly connected with the sliding block.

The beneficial effect of adopting above-mentioned further scheme is simple structure, reasonable in design, utilizes the cooperation of spout and slider can increase the stability that L shape frame reciprocated.

Further, an elastic pressure head used for tightly pressing the corresponding cabinet door is fixedly connected to one end of the L-shaped frame.

The cabinet door has the beneficial effects that the structure is simple, the design is reasonable, the cabinet door is tightly pressed by the elastic pressure head, the cabinet door can be temporarily closed, rigid contact between the L-shaped frame and the cabinet door can be avoided, and the cabinet door is protected.

Further, the sliding block is fixedly connected with the lower end of the sliding groove through a spring, and the spring can push the L-shaped frame to move to one end of the L-shaped frame to press the cabinet door when being naturally stretched.

The beneficial effect of adopting above-mentioned further scheme is when needs temporarily close the cabinet door, can make the other end and the corresponding locating cylinder separation of L shape frame earlier, then L shape frame moves to the one end of L shape frame and sticiss the cabinet door under the elasticity effect of spring, need not manual promotion, labour saving and time saving.

Further, an inserting block is arranged at the other end of the L-shaped frame, and the inserting block can be inserted into the corresponding positioning cylinder and detachably connected with the positioning cylinder or withdrawn from the corresponding positioning cylinder.

The beneficial effect of adopting above-mentioned further scheme is that utilize the removable connection of inserted block and positioning tube to realize the connection of L shape frame and positioning tube, it is convenient to connect.

Further, the upper end of the insertion block is fixedly connected with one end of the L-shaped frame, and the other end of the insertion block is provided with a positioning groove; the positioning cylinder is provided with a positioning hole penetrating inside and outside, the insertion block is inserted into the positioning cylinder until the positioning groove is communicated with the positioning hole, and the bolt can be inserted into the positioning hole and the positioning groove to connect the insertion block and the positioning cylinder.

The beneficial effect of adopting above-mentioned further scheme is when using, in the inserted block inserts the positioning cylinder to constant head tank and locating hole intercommunication, can insert in locating hole and the constant head tank with the bolt to connect inserted block and positioning cylinder, easy and simple to handle, labour saving and time saving.

Further, a mounting ring is fixedly arranged at the other end of the L-shaped frame, the insertion block is arranged in the mounting ring in a threaded manner, and the insertion block can rotate until the lower end of the insertion block is in threaded connection with the positioning cylinder.

The beneficial effect of adopting above-mentioned further scheme is when using, rotates the inserted block and can realize the connection of inserted block and positioning tube, easy and simple to handle, labour saving and time saving.

Further, the plurality of cabinet bodies are respectively in a rectangular structure.

The beneficial effect of adopting above-mentioned further scheme is that the shape is regular, neat pleasing to the eye.

Further, a plurality of operation buttons are respectively arranged on the plurality of cabinet doors.

The beneficial effect of adopting above-mentioned further scheme is when using, can carry out multiple different operations, convenient to use through a plurality of operating button.

Drawings

FIG. 1 is a schematic view of a single cabinet according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of a first embodiment of the present utility model, wherein a plurality of cabinets are not connected;

FIG. 3 is an enlarged view of FIG. 2A;

FIG. 4 is a schematic view of a first embodiment of the present utility model, in which a plurality of cabinets are connected;

FIG. 5 is an enlarged view of B in FIG. 4;

FIG. 6 is a schematic view of a single cabinet according to a second embodiment of the present utility model;

FIG. 7 is a schematic view of a structure of a plurality of cabinets according to a second embodiment of the present utility model when the cabinets are not connected;

FIG. 8 is an enlarged view of C in FIG. 7;

FIG. 9 is a schematic view illustrating a structure of a plurality of cabinets according to a second embodiment of the present utility model;

fig. 10 is an enlarged view of D in fig. 9.

In the drawings, the list of components represented by the various numbers is as follows:

1. a cabinet body; 2. a cabinet door; 3. a positioning cylinder; 4. an L-shaped frame; 5. a slide block; 6. a chute; 7. operating a button; 8. an elastic pressure head; 9. a spring; 10. inserting blocks; 11. a plug pin; 12. a mounting ring; 13. a handle; 14. an observation window; 15. and (5) connecting a plate.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

As shown in fig. 1 to 10, the present embodiment provides a PLC control cabinet for controlling pressure regulation of natural gas, which includes a plurality of cabinet bodies 1 distributed side by side, and openable and closable cabinet doors 2 are respectively installed at front sides of the plurality of cabinet bodies 1; the front bottoms of the plurality of cabinet bodies 1 are vertically and fixedly provided with positioning cylinders 3 with open upper ends near the left sides of the cabinet bodies, and the positions of the front bottoms of the two cabinet bodies 1 near the right sides of the cabinet bodies can slide up and down and are provided with positioning frames for positioning; the positioning frame on each cabinet body 1 can be moved up to press the cabinet door 2 on the cabinet body 1 or moved down to be detachably connected with the positioning cylinder 3 on the adjacent cabinet body 1; the rear sides of two adjacent cabinet bodies 1 are detachably connected through a connecting plate 15.

When the cabinet is used, the positioning frame on each cabinet body 1 can be moved upwards to tightly press the cabinet door 2 on the cabinet body 1, so that the cabinet door 2 is temporarily closed, and a locking piece on the cabinet door 2 is not required to be adopted to lock the cabinet door 2; or the locating rack moves down to and can dismantle with the locating section of thick bamboo 3 on the adjacent cabinet body 1 and be connected to realize the connection between two adjacent cabinet bodies 1, prevent that cabinet body 1 from taking place the displacement, guarantee that a plurality of cabinet bodies 1 are neatly arranged.

Preferably, in this embodiment, the front side of each cabinet 1 is provided with an opening, the cabinet door 2 is mounted on the opening in an openable and closable manner, the left side of the cabinet door is rotatably connected with the left side of the opening, and the right side of the cabinet door is rotatable to be attached to the right side of the opening and detachably connected with the cabinet 1 through a lock (prior art).

In addition, the handle 13 is fixedly arranged on the right side of the cabinet door 2, so that the cabinet door 2 can be conveniently opened and closed, and time and labor are saved.

Preferably, in this embodiment, each positioning cylinder 3 has a cylindrical structure, and its lower end may be closed or open.

Preferably, in this embodiment, each cabinet door 2 is also fixedly provided with an observation window 14.

Preferably, in this embodiment, two ends of each connecting plate 15 are detachably connected to the rear sides of the two adjacent cabinet bodies 1 respectively through screws, so as to ensure the connection stability of the two adjacent cabinet bodies 1.

The embodiment has simple structure and reasonable design, and can realize the quick connection between two adjacent cabinet bodies 1 through the positioning frame, thereby realizing the orderly arrangement of a plurality of cabinet bodies 1 and avoiding the displacement of the cabinet bodies 1; meanwhile, the cabinet door 2 can be temporarily closed, the cabinet door 2 is not required to be locked by a locking piece, and the use is convenient.

Example 2

On the basis of the embodiment 1, in the embodiment, the positioning frame comprises an L-shaped frame 4, the bending part of the L-shaped frame 4 is connected with the bottom of the front side of the cabinet body 1 in a sliding way through a sliding block 5, one end of the positioning frame extends vertically upwards, and the other end of the positioning frame extends horizontally; the L-shaped frame 4 can be moved up to one end of the L-shaped frame to press the corresponding cabinet door 2, or moved down to the other end of the L-shaped frame to be detachably connected with the corresponding positioning cylinder 3.

When in use, the L-shaped frame 4 can be moved up to one end of the L-shaped frame to press the corresponding cabinet door 2, so that the temporary closing of the cabinet door 2 is realized, and the cabinet door 2 is not required to be locked by adopting a locking piece on the cabinet door 2; or the L-shaped frame 4 moves downwards to the other end of the L-shaped frame and is detachably connected with the corresponding positioning cylinder 3, so that the connection between two adjacent cabinet bodies 1 is realized, the displacement of the cabinet bodies 1 is prevented, and the orderly arrangement of a plurality of cabinet bodies 1 is ensured;

the scheme has simple structure and reasonable design, can realize temporary closing of the cabinet door 2 by utilizing the special structure of the L-shaped frame 4, and can connect two adjacent cabinet bodies 1, thereby being convenient to use.

Example 3

On the basis of embodiment 2, in this embodiment, a vertically extending chute 6 is provided at a position near the right side of the bottom of the front side of the cabinet body 1, and a slider 5 is slidably mounted in the chute 6 up and down, and an L-shaped frame 4 is fixedly connected with the slider 5.

The scheme has simple structure and reasonable design, and the stability of the up-and-down movement of the L-shaped frame 4 can be increased by utilizing the matching of the sliding groove 6 and the sliding block 5.

Preferably, in this embodiment, the chute 6 is preferably an elongated chute.

In addition, the sliding block 5 is preferably a T-shaped block, so that the sliding of the sliding block 5 in the sliding groove 6 can be realized, and the sliding of the sliding block 5 and the sliding groove 6 can be avoided.

Example 4

In this embodiment, on the basis of embodiment 3, an elastic pressing head 8 for pressing the corresponding cabinet door 2 is fixedly connected to one end of the L-shaped frame 4.

The scheme has simple structure and reasonable design, and the cabinet door 2 is tightly pressed by the elastic pressure head 8, so that the cabinet door 2 can be temporarily closed, rigid contact between the L-shaped frame 4 and the cabinet door 2 can be avoided, and the cabinet door 2 is protected.

Preferably, in this embodiment, the elastic pressing head 8 is preferably a rubber head.

Example 5

On the basis of any one of the embodiment 3 to the embodiment 4, in this embodiment, the sliding block 5 is fixedly connected with the lower end of the sliding groove 6 through the spring 9, and when the spring 9 naturally stretches, the L-shaped frame 4 can be pushed to move to one end of the L-shaped frame to press the cabinet door 2.

When the cabinet door 2 needs to be temporarily closed, the other end of the L-shaped frame 4 can be separated from the corresponding positioning cylinder 3, then the L-shaped frame 4 moves up to one end of the L-shaped frame 4 under the action of the elastic force of the spring 9 to tightly press the cabinet door 2, manual pushing is not needed, and time and labor are saved.

When the other end of the L-shaped frame 4 is connected with the corresponding positioning cylinder 3, the spring 9 is in a compressed state; when the other end of the L-shaped frame 4 is separated from the corresponding positioning cylinder 3, the spring 9 automatically stretches at the moment and pushes the L-shaped frame 4 to move upwards.

Example 6

In this embodiment, the insertion block 10 is mounted on the other end of the L-shaped frame 4 on the basis of any one of embodiments 3 to 5, and the insertion block 10 is inserted into the corresponding positioning cylinder 3 and detachably connected to the positioning cylinder 3 or withdrawn from the corresponding positioning cylinder 3.

The plug 10 is detachably connected with the positioning cylinder 3, so that the connection between the L-shaped frame 4 and the positioning cylinder 3 is realized, and the connection is convenient.

Preferably, in this embodiment, the insert 10 is preferably of cylindrical structure, and has a diameter equal to or smaller than the inner diameter of the positioning cylinder 3.

Example 7

On the basis of embodiment 6, as shown in fig. 1 to 5, in this embodiment, the upper end of the insert block 10 is fixedly connected with one end of the L-shaped frame 4, and the other end is provided with a positioning groove; the positioning cylinder 3 is provided with positioning holes penetrating inside and outside, and the plug 10 is inserted into the positioning cylinder 3 until the positioning groove is communicated with the positioning holes, so that the plug 11 can be inserted into the positioning holes and the positioning groove to connect the plug 10 and the positioning cylinder 3.

When in use, the plug 10 is inserted into the positioning cylinder 3 until the positioning groove is communicated with the positioning hole, and the plug 11 can be inserted into the positioning hole and the positioning groove to connect the plug 10 and the positioning cylinder 3, so that the operation is simple and convenient, and the time and the labor are saved.

Example 8

On the basis of embodiment 6, as shown in fig. 6 to 10, in this embodiment, a mounting ring 12 is fixedly installed on the other end of the L-shaped frame 4, and an insert 10 is screwed into the mounting ring 12, and is rotatable until its lower end is screwed with the positioning cylinder 3.

When in use, the rotary insert block 10 can realize the connection between the insert block 10 and the positioning cylinder 3, and the operation is simple and convenient, and the time and the labor are saved.

Preferably, in this embodiment, the inner side of the mounting ring 12 is provided with an internal thread, the inner side of the positioning cylinder 3 is also provided with an internal thread, and the insert 10 is provided with an external thread.

Example 9

Based on the above embodiments, in this embodiment, the plurality of cabinets 1 are each in a rectangular body structure.

The scheme has regular shape, tidiness and beautiful appearance.

Example 10

On the basis of the above embodiments, in the present embodiment, a plurality of operation buttons 7 are mounted on a plurality of cabinet doors 2, respectively.

When in use, a plurality of operation buttons 7 can be used for carrying out a plurality of different operations, and the use is convenient.

The working principle of the utility model is as follows:

when the novel multifunctional cabinet is used, the L-shaped frame 4 can be manually moved down to the other end of the L-shaped frame and the corresponding positioning cylinder 3 in a detachable mode, so that the connection between two adjacent cabinet bodies 1 is realized, the cabinet bodies 1 are prevented from being displaced, the plurality of cabinet bodies 1 are ensured to be orderly arranged, and the springs 9 are in a compressed state;

when the cabinet door 2 needs to be temporarily closed, the positioning cylinder 3 is manually separated from the other end of the L-shaped frame 4, and the L-shaped frame 4 can move upwards to one end of the L-shaped frame to tightly press the corresponding cabinet door 2 under the action of the elastic force of the spring 9, so that the cabinet door 2 is temporarily closed, and a locking piece on the cabinet door 2 is not required to be adopted to lock the cabinet door 2.

It should be noted that, all the electronic components related to the present utility model adopt the prior art, and the above components are electrically connected to the controller, and the control circuit between the controller and the components is the prior art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. A PLC control cabinet for natural gas pressure regulation control is characterized in that: comprises a plurality of cabinet bodies (1) which are distributed side by side, wherein the front sides of the plurality of cabinet bodies (1) are respectively provided with a cabinet door (2) which can be opened and closed; the positioning cylinders (3) with open upper ends are vertically and fixedly arranged at the positions, close to the left side, of the bottoms of the front sides of the cabinet bodies (1), and positioning frames are arranged at the positions, close to the right side, of the bottoms of the front sides of the cabinet bodies (1) in a sliding and positioning mode; the positioning frame on each cabinet body (1) can be moved up to tightly press the cabinet door (2) on the cabinet body (1) or moved down to be detachably connected with the positioning cylinder (3) on the adjacent cabinet body (1); the rear sides of two adjacent cabinet bodies (1) are detachably connected through a connecting plate (15).

2. The PLC control cabinet for natural gas pressure regulating control according to claim 1, wherein: the positioning frame comprises an L-shaped frame (4), wherein the bending part of the L-shaped frame (4) is in sliding connection with the bottom of the front side of the cabinet body (1) through a sliding block (5), one end of the L-shaped frame extends vertically upwards, and the other end of the L-shaped frame extends horizontally; the L-shaped frame (4) can be moved up to one end of the L-shaped frame to be tightly pressed against the corresponding cabinet door (2), or moved down to the other end of the L-shaped frame to be detachably connected with the corresponding positioning cylinder (3).

3. The PLC control cabinet for natural gas pressure regulating control according to claim 2, wherein: the cabinet is characterized in that a vertically extending chute (6) is arranged at the bottom of the front side of the cabinet body (1) close to the right side of the cabinet body, the sliding block (5) can be installed in the chute (6) in an up-down sliding mode, and the L-shaped frame (4) is fixedly connected with the sliding block (5).

4. The PLC control cabinet for natural gas pressure regulating control according to claim 3, wherein: one end of the L-shaped frame (4) is fixedly connected with an elastic pressure head (8) for pressing the corresponding cabinet door (2).

5. The PLC control cabinet for natural gas pressure regulating control according to claim 3, wherein: the sliding block (5) is fixedly connected with the lower end of the sliding groove (6) through a spring (9), and the spring (9) can push the L-shaped frame (4) to move to one end of the L-shaped frame to press the cabinet door (2) when being naturally stretched.

6. The PLC control cabinet for controlling pressure regulation of natural gas according to any one of claims 3 to 5, wherein: the other end of the L-shaped frame (4) is provided with an inserting block (10), and the inserting block (10) can be inserted into the corresponding positioning cylinder (3) and detachably connected with the positioning cylinder (3) or withdrawn from the corresponding positioning cylinder (3).

7. The PLC control cabinet for natural gas pressure regulating control according to claim 6, wherein: the upper end of the insertion block (10) is fixedly connected with one end of the L-shaped frame (4), and the other end of the insertion block is provided with a positioning groove; the positioning cylinder (3) is provided with positioning holes penetrating inside and outside, the insertion block (10) is inserted into the positioning cylinder (3) until the positioning groove is communicated with the positioning holes, and the bolt (11) can be inserted into the positioning holes and the positioning groove to connect the insertion block (10) and the positioning cylinder (3).

8. The PLC control cabinet for natural gas pressure regulating control according to claim 6, wherein: the other end of the L-shaped frame (4) is fixedly provided with a mounting ring (12), the insertion block (10) is arranged in the mounting ring (12) in a threaded manner, and the insertion block can rotate until the lower end of the insertion block is in threaded connection with the positioning cylinder (3).

9. The PLC control cabinet for controlling pressure regulation of natural gas according to any one of claims 1 to 5, wherein: the plurality of cabinet bodies (1) are respectively in rectangular structures.

10. The PLC control cabinet for controlling pressure regulation of natural gas according to any one of claims 1 to 5, wherein: a plurality of operation buttons (7) are respectively arranged on the cabinet doors (2).