Coal blockage switch protection device

Abstract

The utility model relates to the technical field of material level detection, in particular to a coal blocking switch protection device which comprises a supporting component, a fixing plate, a supporting plate and a connecting plate, one side of the fixing plate and one side of the supporting plate are connected to the two sides of the connecting plate respectively, and a containing groove is defined by the fixing plate, the supporting plate and the connecting plate. The protection component comprises a protection plate and a plug board, and the plug board is arranged at one end of the protection plate; wherein the plug board is suitable for being matched with the accommodating groove; the protection angle of the protection plate is adjustable through the arrangement of the insertion holes and the insertion columns, and the device is easy and convenient to install and easy to replace through the arrangement of the fixing plate.

Description

Technical Field

[0001] This utility model relates to the field of material level detection technology, and in particular to a protective device for a coal blockage switch. Background Technology

[0002] Coal blockage switches, a commonly used level gauge, work by using a permanent magnet motor to drive blades to rotate. When the detected material rises to the position of the coal blockage switch blades, the blades are obstructed from rotating. This resistance is transmitted to the detection mechanism inside the coal blockage switch housing, which then outputs an alarm signal so that the operator can take further action to prevent the coal blockage from worsening. Coal blockage switches are usually installed on the side wall of the coal silo. When falling coal blocks collide with the coal blockage switch blades, it will cause the coal blockage switch to falsely alarm.

[0003] Currently, the method to prevent coal blockage switch blades from being hit by coal blocks is to install a protective cover above the coal blockage switch blades. However, the protective cover is easily deformed or even damaged due to frequent impacts from coal blocks, which affects the protection of the coal blockage switch blades. Furthermore, the protective cover is not easy to replace after it is damaged. At the same time, the installation position of the protective cover is fixed, which is not convenient for blocking the impact of coal blocks falling at different angles on the coal blockage switch blades. Utility Model Content

[0004] In view of the problems of inconvenient installation and non-adjustable angle of the protective cover for the coal blockage switch in the above or existing technologies, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a protective device for a coal blockage switch.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a support component, including a fixing plate, a support plate and a connecting plate, wherein one side of the fixing plate and one side of the support plate are respectively connected to the two sides of the connecting plate, and the fixing plate, the support plate and the connecting plate form a receiving groove.

[0007] The protective component includes a protective plate and a plug plate, wherein the plug plate is disposed at one end of the protective plate;

[0008] The plug-in plate is adapted to fit into the receiving groove.

[0009] As a preferred embodiment of the coal blockage switch protection device of this utility model, the fixing plate is arranged in a fan shape, and a semi-circular notch is opened at the center of the fixing plate; the supporting plate is arranged in a fan shape, and a semi-circular notch is opened at the center of the supporting plate; the semi-circular notch of the fixing plate and the semi-circular notch of the supporting plate are concentric and have the same radius.

[0010] As a preferred embodiment of the coal blockage switch protection device of this utility model, the connecting plate is arranged in a semi-circular ring shape, and the arc length of the inner ring of the connecting plate is equal to the arc length of the semi-circular notch of the fixed plate and the arc length of the semi-circular notch of the support plate.

[0011] As a preferred embodiment of the coal blockage switch protection device of this utility model, the inner ring radius of the connecting plate is concentric with and of equal diameter to the semi-circular notch of the fixing plate and the semi-circular notch of the support plate.

[0012] As a preferred embodiment of the coal blockage switch protection device of this utility model, the receiving groove is arranged in a ring shape, and its opening is opened in the radial direction.

[0013] As a preferred embodiment of the coal blockage switch protection device of this utility model, the protective plate has a semi-circular cross-section, and the inner diameter of the protective plate is equal to the outer diameter of the support plate.

[0014] As a preferred embodiment of the coal blockage switch protection device of this utility model, the plug-in plate is arranged in a fan shape, and a semi-circular notch is opened at the center of the plug-in plate. The inner diameter of the semi-circular notch of the plug-in plate is equal to the outer diameter of the connecting plate.

[0015] As a preferred embodiment of the coal blockage switch protection device of this utility model, the supporting component further includes a number of insertion holes, which are evenly distributed on the connecting plate.

[0016] As a preferred embodiment of the coal blockage switch protection device of this utility model, the protection component further includes a plug-in post, which is located at the midpoint of the semi-circular notch of the plug-in plate and extends towards the center of the plug-in plate.

[0017] As a preferred embodiment of the coal blockage switch protection device of this utility model, the plug-in post is adapted to be matched with the plug-in hole.

[0018] The beneficial effects of the coal blockage switch protection device of this utility model are as follows: the setting of plug-in holes and plug-in posts makes the protection angle of the protective plate adjustable, and the setting of the fixing plate makes the device easy to install and easy to replace. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the overall protective device for the coal blockage switch.

[0021] Figure 2 This is a structural schematic diagram of the supporting component.

[0022] Figure 3 This is a structural schematic diagram of the protective component.

[0023] Figure 4 This is a side sectional view of the coal blockage switch protection device.

[0024] Figure 5 This is a schematic diagram of a protective device installed on a coal blockage switch. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1, referring to Figures 1 to 4 This is the first embodiment of the present invention. This embodiment provides a coal blockage switch protection device to prevent the coal blockage switch blades from being hit by falling coal blocks, which would cause the coal blockage switch to falsely alarm.

[0029] Specifically, it includes a support component 100, which is installed on the side wall of the coal silo to fix and support the protective component 200.

[0030] The support component 100 includes a fixing plate 101, a support plate 102, and a connecting plate 103. The fixing plate 101 is bolted to the side wall of the coal silo, the support plate 102 is used to support the protective component 200, and the connecting plate 103 is used to connect the fixing plate 101 and the support plate 102.

[0031] The fixing plate 101 and the support plate 102 are respectively welded to both sides of the connecting plate 103. The fixing plate 101, the support plate 102 and the connecting plate 103 form a receiving groove 105, which is used to insert the plug-in plate 202.

[0032] It should be noted that the outer diameter of the fixing plate 101 is larger than the outer diameter of the connecting plate 103, which makes it easier for the fixing plate 101 to be bolted to the side wall of the coal silo.

[0033] The protective component 200 is used to prevent the coal blockage switch blade from being hit by falling coal chunks. The protective component 200 includes a protective plate 201 and a plug-in plate 202; the protective plate 201 is disposed above the coal blockage switch blade and is made of aluminum-magnesium alloy material. It is used to protect the coal blockage switch blade from being hit by falling coal chunks, which would affect the continuous rotation of the coal blockage switch blade and cause a false alarm; the plug-in plate 202 is welded to one end of the protective plate 201 and is used to insert into the receiving groove 105 to fix the protective plate 201 to the support component 100.

[0034] Furthermore, the fixing plate 101 is arranged in a fan shape, and a semi-circular notch is opened at the center of the fixing plate 101. The support plate 102 is arranged in a fan shape, and a semi-circular notch is opened at the center of the support plate 102. The semi-circular notch of the fixing plate 101 and the semi-circular notch of the support plate 102 are concentric and have the same radius.

[0035] The connecting plate 103 is arranged in a semi-circular ring shape. The shape of the connecting plate 103 allows the device to be installed as close as possible to the coal blockage switch blade, while avoiding interference between the device and the coal blockage switch blade after installation. The inner ring arc length of the connecting plate 103 is equal to the arc length of the semi-circular notch of the fixing plate 101 and the arc length of the semi-circular notch of the support plate 102.

[0036] Preferably, the outer ring radius of the connecting plate 103 is concentric and of equal diameter with the semi-circular notch of the fixing plate 101 and the semi-circular notch of the support plate 102, so as to facilitate the welding of the fixing plate 101 and the support plate 102 to the outer ring surface of the connecting plate 103.

[0037] The receiving groove 105 is a receiving space formed by the fixing plate 101, the support plate 102, and the connecting plate 103. As can be seen from the shape and positional relationship of the fixing plate 101, the support plate 102, and the connecting plate 103, the receiving groove 105 is annular, and its opening direction is set in the radial direction. The opening direction of the receiving groove 105 facilitates the insertion of the plug-in plate 202 into it.

[0038] It should be noted that the protective plate 201 has a semi-circular cross-section, and the inner diameter of the protective plate 201 is set to be equal to the outer diameter of the support plate 102. This is to facilitate the insertion of the plug plate 202 into the receiving groove 105, so that the protective plate 201 fits better against the support plate 102 and is better supported.

[0039] Furthermore, the plug-in plate 202 is fan-shaped, and a semi-circular notch is provided at the center of the plug-in plate 202. The inner diameter of the semi-circular notch of the plug-in plate 202 is equal to the outer diameter of the connecting plate 103, so that after the plug-in plate 202 is inserted into the receiving groove 105, the plug-in plate 202 fits better against the connecting plate 103.

[0040] It should be noted that the width of the annulus of the plug-in plate 202 is equal to the width of the annulus of the support plate 102.

[0041] Example 2, refer to Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a structure for adjusting the protection angle of the coal blockage switch protection device, which solves the problem that the protection angle of the coal blockage switch is inconvenient to adjust.

[0042] Specifically, the support component 100 also includes insertion holes 104. Several insertion holes 104 are provided and are evenly distributed on the connecting plate 103. The interval angle of the insertion holes 104 is determined according to the falling angle of the coal block on site.

[0043] The two ends of the insertion hole 104 are machined with rounded corners to avoid interference between the insertion post 203 and the insertion hole 104 when the insertion post 203 is inserted or removed, which would cause damage to the insertion post 203.

[0044] Furthermore, the protective component 200 also includes a plug post 203, which is located at the midpoint of the semi-circular notch sidewall of the plug plate 202 and extends toward the center of the plug plate 202.

[0045] Furthermore, the top of the plug post 203 is machined with an angle to facilitate the insertion of the plug post 203 into the plug hole 104.

[0046] After the plug pin 203 is inserted into the plug hole 104, the position of the protective component 200 is further fixed.

[0047] The rest of the structure is the same as in Example 1.

[0048] When in use, first bolt the fixing plate 101 to the side wall of the coal silo, then insert the plug plate 202 into the receiving groove 105, and at the same time align the plug pin 203 with the plug hole 104 in the middle of the connecting plate 103, insert the plug pin 203 into the plug hole 104, and complete the fixed connection between the protective component 200 and the support component 100.

[0049] If a coal block falls from the side, the protective component 200 can be pulled out from the support component 100. Select the corresponding insertion hole 104 according to the coal falling angle, insert the insertion post 203 into the insertion hole 104, and then adjust the protective angle of the protective plate 201 on the coal blockage switch blade M.

[0050] In summary, the protective device, through the installation of the insertion hole 104 and the insertion post 203, makes the protective angle of the protective plate 201 adjustable, and the installation of the fixing plate 101 makes the device easy to install and replace.

[0051] Example 3, referring to Figure 5 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides an installation method for the fixing plate 101, which solves the problem of inconvenient replacement of the protective device.

[0052] Specifically, countersunk holes are provided on the fixing plate 101. When the fixing plate 101 is bolted to the side wall of the coal silo, the bolt head is buried in the countersunk hole, which avoids the protruding bolt head interfering with the plug plate 202 when it is inserted into the receiving groove 105.

[0053] Furthermore, the countersunk hole on the fixing plate 101 is positioned to correspond to the threaded hole position of the coal blockage switch flange. When installing the coal blockage switch, align the countersunk hole with the threaded hole of the coal blockage switch flange and fit the fixing plate 101 with the coal blockage switch flange. Then, use bolts to fix the device and the coal blockage switch to the side wall of the coal silo simultaneously. There is no need to drill additional holes on the side wall of the coal silo, as both share bolts and mounting holes.

[0054] The rest of the structure is the same as in the above embodiments.

[0055] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0056] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0057] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A protective device for a coal blockage switch, characterized in that: include, The support component (100) includes a fixing plate (101), a support plate (102) and a connecting plate (103), wherein the fixing plate (101) and the support plate (102) are respectively connected to the connecting plate (103), and the fixing plate (101), the support plate (102) and the connecting plate (103) together form a receiving groove (105); The protective component (200) includes a protective plate (201) and a plug plate (202), wherein the plug plate (202) is disposed at one end of the protective plate (201); The plug-in plate (202) is adapted to the receiving groove (105).

2. The coal blockage switch protection device as described in claim 1, characterized in that: The fixing plate (101) is arranged in a fan shape, and a semi-circular notch is opened at the center of the fixing plate (101). The support plate (102) is arranged in a fan shape, and a semi-circular notch is opened at the center of the support plate (102). The semi-circular notch of the fixing plate (101) and the semi-circular notch of the support plate (102) are concentric and have the same radius.

3. The coal blockage switch protection device as described in claim 2, characterized in that: The connecting plate (103) is arranged in a semi-circular ring shape, and the inner ring arc length of the connecting plate (103) is equal to the arc length of the semi-circular notch of the fixing plate (101) and the arc length of the semi-circular notch of the support plate (102).

4. The coal blockage switch protection device as described in claim 3, characterized in that: The inner circumference of the connecting plate (103) is concentric with and of equal diameter to the semi-circular notch of the fixing plate (101) and the semi-circular notch of the support plate (102).

5. The coal blockage switch protection device as described in claim 4, characterized in that: The receiving groove (105) is arranged in a ring shape, and its opening is opened in the radial direction.

6. The coal blockage switch protection device as described in claim 1, characterized in that: The protective plate (201) has a semi-circular cross-section, and the inner diameter of the protective plate (201) is equal to the outer diameter of the support plate (102).

7. The coal blockage switch protection device as described in claim 6, characterized in that: The plug plate (202) is arranged in a fan shape, and a semi-circular notch is provided at the center of the plug plate (202). The inner diameter of the semi-circular notch of the plug plate (202) is the same as the outer diameter of the connecting plate (103).

8. The coal blockage switch protection device as described in claim 1, characterized in that: The support component (100) also includes a number of insertion holes (104) evenly distributed on the connecting plate (103).

9. The coal blockage switch protection device as described in claim 8, characterized in that: The protective component (200) also includes a plug post (203), which is located at the midpoint of the semi-circular notch of the plug plate (202) and extends toward the center of the plug plate (202).

10. The coal blockage switch protection device as described in claim 9, characterized in that: The plug (203) is adapted to the plug hole (104).

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