A bar valve for an electrically controlled switch

Abstract

This utility model discloses a bar valve for an electrically controlled switch, relating to the field of bar valve technology. The bar valve for the electrically controlled switch includes: a hollow valve shell, with a partition fixedly connected inside the valve shell; short bars and long bars disposed inside the valve shell, one end of each bar extending through the partition and the valve shell to the front end of the valve shell; a short bar push-pull plate fitted onto the front end of the short bar; the front end of the long bar extending through the short bar push-pull plate to the front end; a long bar push-pull plate fitted onto the outer side of the front end of the long bar; synchronizing cylinders fixedly connected to the left and right ends of the upper and lower sides of the valve shell; the extension / retraction end of the outer synchronizing cylinder fixedly connected to the rear side of the short bar push-pull plate; the extension / retraction end of the inner synchronizing cylinder fixedly connected to the rear side of the long bar push-pull plate; the synchronizing cylinders connected to an air supply system; and a fixing mechanism installed at the connection points between the short bar and the short bar push-pull plate, and between the long bar and the long bar push-pull plate.

Description

Technical Field

[0001] This utility model relates to the field of bar valve technology, specifically to a bar valve with an electrically controlled switch. Background Technology

[0002] The coal feeding system in the pulverized coal workshop operates as follows: a loader shovels raw coal into the receiving pit → personnel adjust the opening of the bar valve to control the coal feed rate → the coal is conveyed via belt conveyor to the bucket elevator → the bucket elevator transports the coal to the large crusher for crushing → the raw coal then falls into the raw coal silo. During feeding, personnel must control the opening of the bar valve to adjust the feed rate. This is especially problematic in winter when the raw coal has high moisture content and is prone to caking, making feeding particularly difficult. In such cases, personnel must repeatedly adjust the bar valve to ensure proper feeding. This requires personnel to stand beside the bar valve, consuming manpower and increasing their workload. Furthermore, the raw coal receiving pit is a semi-enclosed area where carbon monoxide can easily accumulate, leading to carbon monoxide poisoning. Existing electrically controlled bar valves are often operated in groups or as a single unit, significantly reducing their effectiveness in initial screening of coal sizes. Therefore, an electrically controlled bar valve is designed to address these issues. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides an electrically controlled bar valve, which solves the problem that the traditional manual insertion and removal method wastes a lot of manpower and may cause carbon monoxide poisoning. Furthermore, existing electrically controlled bar valves are mostly inserted and removed in groups or as a whole, which significantly reduces their initial screening effect on coal mines of different sizes.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a bar valve for an electrically controlled switch, comprising: a hollow valve shell, a partition fixedly connected inside the valve shell, short bars and long bars disposed inside the valve shell, one end of each of the short bars and long bars extending through the partition and the valve shell to the front end of the valve shell, a short bar push-pull plate fitted at the front end of the short bar, the front end of the long bar extending through the short bar push-pull plate to the front end, a long bar push-pull plate fitted on the outer side of the front end of the long bar, and synchronized cylinders fixedly connected to the left and right ends of the upper and lower sides of the valve shell, the telescopic end of the outer synchronized cylinder being fixedly connected to the rear side of the short bar push-pull plate, the telescopic end of the inner synchronized cylinder being fixedly connected to the rear side of the long bar push-pull plate, the synchronized cylinders being connected to an air supply system, the synchronized cylinders being electrically connected to a PLC control system, and a fixing mechanism being installed at the connection between the short bars and the short bar push-pull plate, and between the long bars and the long bar push-pull plate.

[0008] Preferably, the fixing mechanism includes a slider with arc-shaped upper and lower ends, a slot is provided at the lower front end of the short bar and the long bar, a sliding groove is provided inside the short bar push-pull plate and the long bar push-pull plate, the slider is inserted into the sliding groove, and a hole is provided at the lower end of the sliding groove of the short bar push-pull plate and the long bar push-pull plate, an adjusting rod is inserted into the hole, and one end of the adjusting rod is conical.

[0009] Preferably, ball bearing guide sleeves are connected to the connection points of the short bar, the long bar and the valve body and the partition plate, and ball bearing guide sleeves are also fixedly connected to the connection point of the long bar and the short bar push-pull plate.

[0010] Preferably, the rear side of the inner wall of the valve housing is connected with interlocking columns in an array.

[0011] Preferably, a sloping protrusion is fixedly connected to the rear side of the connection between the internal partition of the valve body and the short bar and the long bar.

[0012] Preferably, a limit ring is fixedly connected to the outer side of the front end of both the short bar and the long bar.

[0013] Preferably, the length of the long bar extending from the front side to the valve housing is greater than the stretchable length of the short bar.

[0014] (III) Beneficial Effects

[0015] This utility model provides a bar valve with an electrically controlled switch, which has at least the following advantages compared with the prior art:

[0016] The bar valve of this electronically controlled switch can be adjusted to allow material to fall at intervals of one bar when inserted or removed, which ensures discharge efficiency while still maintaining the traditional coarse filtration effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Bottom view;

[0019] Figure 3 This is a structural diagram of the fixing mechanism of this utility model;

[0020] Figure 4 This utility model Figure 3 A longitudinal sectional view;

[0021] Figure 5 This utility model Figure 3 A cross-sectional view.

[0022] In the diagram: 1. Valve housing; 2. Short bar; 3. Long bar; 4. Short bar push-pull plate; 5. Long bar push-pull plate; 6. Synchronous cylinder; 7. Fixing mechanism; 21. Fitting column; 71. Slider; 72. Adjusting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a bar valve for an electrically controlled switch, comprising: a hollow valve shell 1, a partition fixedly connected inside the valve shell 1, a short bar 2 and a long bar 3 disposed inside the valve shell 1, one end of each of the short bar 2 and the long bar 3 extending through the partition and the valve shell 1 to the front end of the valve shell 1, a short bar push-pull plate 4 sleeved on the front end of the short bar 2, and the front end of the long bar 3 extending through the short bar push-pull plate 4 to the front end, and a sleeve on the outer side of the front end of the long bar 3. A long rod push-pull plate 5 is provided. Synchronous cylinders 6 are fixedly connected to the left and right ends of the upper and lower sides of the valve housing 1. The telescopic end of the outer synchronous cylinder 6 is fixedly connected to the rear side of the short rod push-pull plate 4, and the telescopic end of the inner synchronous cylinder 6 is fixedly connected to the rear side of the long rod push-pull plate 5. The synchronous cylinder 6 is connected to the air supply system and electrically connected to the PLC control system. A fixing mechanism 7 is installed at the connection between the short rod 2 and the short rod push-pull plate 4, and the long rod 3 and the long rod push-pull plate 5.

[0025] In use, the opening at the rear of the upper end of the valve body 1 is connected to the coal hopper, and the lower end is connected to the conveyor belt. The four outer synchronous cylinders 6 form a group, and the four inner synchronous cylinders 6 form a group. When the control terminal extends a group of synchronous cylinders 6, the short bar push-pull plate 4 or the long bar push-pull plate 5 is pushed out, and the corresponding short bar 2 or long bar 3 will be pulled forward, making the gap larger and allowing the material to pass through better. When both groups are pushed out at the same time, the material will fall directly onto the conveyor belt below.

[0026] like Figure 1-5As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, the fixing mechanism 7 includes a slider 71 with arc-shaped upper and lower ends. The lower front ends of the short rod 2 and the long rod 3 are provided with slots. The interior of the short rod push-pull plate 4 and the long rod push-pull plate 5 are provided with sliding grooves. The slider 71 is inserted into the interior of the sliding groove. The lower end of the sliding groove of the short rod push-pull plate 4 and the long rod push-pull plate 5 is provided with a hole. An adjusting rod 72 is inserted into the hole and connected. One end of the adjusting rod 72 is conical.

[0027] Analysis of the above structure shows that when the adjusting rod 72 is inserted into the hole, the conical end of the adjusting rod 72 will push the slider 71 upward, so that the upper end of the slider 71 is inserted into the slot opened at the lower front end of the short rod 2 and the long rod 3. When the short rod push-pull plate 4 or the long rod push-pull plate 5 moves back and forth, the position of the slider 71 is locked, thereby pushing the short rod 2 and the long rod 3 to make corresponding movements. When the equipment malfunctions or manual maintenance occurs, the adjusting rod 72 on the lower side can be pulled out, so that the slider 71 falls back. At this time, the short rod 2 and the long rod 3 are not restricted and can be manually inserted and removed.

[0028] like Figure 1-2 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, ball bearing guide sleeves are connected to the connection points of the short bar 2, the long bar 3 and the valve shell 1 and the partition plate. Ball bearing guide sleeves are also fixedly connected to the connection point of the long bar 3 and the short bar push-pull plate 4.

[0029] Analysis of the above structure shows that the ball bearing guide sleeves at the connection points of the short bar 2, the long bar 3 and the valve body 1 and the partition plate, as well as the ball bearing guide sleeves of the long bar 3 and the short bar push-pull plate 4, can reduce friction and reduce resistance during operation.

[0030] like Figure 1-2 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the rear side of the inner wall of the valve housing 1 is connected with fitting columns 21 in an array.

[0031] Analysis of the above structure shows that the interlocking column 21 corresponds to the front end of the short bar 2 and the long bar 3, and the gap is the same as the gap between the short bar 2 and the long bar 3, preventing material from falling through the gap diameter between the front end of the short bar 2 and the long bar 3.

[0032] like Figure 1-2 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, a sloping protrusion is fixedly connected to the rear side of the connection between the internal partition of the valve housing 1 and the short bar 2 and the long bar 3.

[0033] Analysis of the above structure shows that when there is adhesive on the outer surface of the short bar 2 and the long bar 3 and they are pulled out, the sloping protrusions will scrape off the adhesive.

[0034] like Figure 1-2 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, the outer sides of the front ends of the short bar 2 and the long bar 3 are both fixedly connected with limit rings.

[0035] Analysis of the above structure shows that the limiting rings on the outer sides of the front ends of the short bar 2 and the long bar 3 can act as phase rings to prevent them from being pulled out to the outside of the partition.

[0036] like Figure 1-2 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the length of the long bar 3 extending from the front side to the valve housing 1 is greater than the stretchable length of the short bar 2.

[0037] Analysis of the above structure shows that the length of the long bar 3 extending to the valve body 1 is greater than the stretchable length of the short bar 2, allowing the short bar 2 to be pulled out and pushed out normally.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stick valve with electrically controlled opening, characterized in that include: A hollow valve housing (1) has a partition fixedly connected inside. Short rods (2) and long rods (3) are arranged inside the valve housing (1). One end of each of the short rods (2) and long rods (3) extends through the partition and the valve housing (1) to the front end. A short rod push-pull plate (4) is fitted onto the front end of the short rod (2), and the front end of the long rod (3) extends through the short rod push-pull plate (4) to the front end. A long rod push-pull plate (5) is fitted onto the outer side of the front end of the long rod (3). (1) is fixedly connected to the left and right ends of the upper and lower sides of the sync cylinder (6). The telescopic end of the outer sync cylinder (6) is fixedly connected to the rear side of the short rod push-pull plate (4). The telescopic end of the inner sync cylinder (6) is fixedly connected to the rear side of the long rod push-pull plate (5). The sync cylinder (6) is connected to the air supply system. The sync cylinder (6) is electrically connected to the PLC control system. The short rod (2) and the short rod push-pull plate (4) and the long rod (3) and the long rod push-pull plate (5) are connected by a fixing mechanism (7).

2. A bar valve with electrically controlled opening and closing according to claim 1, characterized in that The fixing mechanism (7) includes a slider (71) with arc-shaped upper and lower ends. The front lower ends of the short bar (2) and the long bar (3) are provided with slots. The interior of the short bar push-pull plate (4) and the long bar push-pull plate (5) is provided with sliding grooves. The slider (71) is inserted into the interior of the sliding groove. The lower end of the sliding groove of the short bar push-pull plate (4) and the long bar push-pull plate (5) is provided with a hole. An adjusting rod (72) is inserted into the hole. One end of the adjusting rod (72) is conical.

3. A bar valve of an electrically controlled switch according to claim 1, characterized in that: Ball bearing guide sleeves are connected to the connection points of the short bar (2), the long bar (3) with the valve body (1) and the partition plate, and ball bearing guide sleeves are also fixedly connected to the connection points of the long bar (3) with the short bar push-pull plate (4).

4. A bar valve of an electrically controlled switch according to claim 1, characterized in that: The valve housing (1) has interlocking columns (21) connected in an array on the rear side of its inner wall.

5. A bar valve of an electrically controlled switch according to claim 1, characterized in that: The valve housing (1) has a sloping protrusion fixedly connected to the rear side of the connection between the internal partition and the short bar (2) and long bar (3).

6. A bar valve of an electrically controlled switch according to claim 1, characterized in that: Limiting rings are fixedly connected to the outer sides of the front ends of both the short bar (2) and the long bar (3).

7. A bar valve of an electrically controlled switch according to claim 1, characterized in that: The length of the long bar (3) extending to the valve body (1) is greater than the stretchable length of the short bar (2).

Images