Adjustable main shaft protective cover

Abstract

The utility model relates to an adjustable main shaft protective cover which comprises two sets of external protection adjusting structures which are oppositely arranged, and the bottom end of the external protection adjusting structure on one side is provided with an internal protection adjusting structure through a connecting column. Each external protection adjusting structure comprises an outer left sleeve plate, an outer right protection plate and an outer bottom fixing plate, the outer left sleeve plates, the outer right protection plates and the outer bottom fixing plates are all of an L-shaped structure, the two ends of each outer left sleeve plate are of a non-face hollow structure, the top end of each outer right protection plate extends outwards to form an insertion plate structure, and due to the fact that the length of the interior is two times that of the exterior, during moving, the outer bottom of the outer bottom fixing plates is fixed to the outer bottom fixing plates. The inner right sleeve plate and the inner right protection plate are arranged on the inner right sleeve plate and can play a full-covering role, the structure which is arranged inside and similar to the external structure can be matched with the external structure to adjust the height and the width, the inner right sleeve plate and the inner right protection plate are fixed to a set of external protection and adjustment corresponding structures through the connecting columns respectively, and the collision phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spindle protection cover devices, in particular to an adjustable spindle protection cover. Background Art

[0002] Centrifugal fans play an important role in industries, construction and other fields. They are multifunctional ventilation equipment that can provide good ventilation and air flow, reduce temperature, control air quality, etc. Centrifugal fans can create a comfortable, safe and healthy working environment, and improve production efficiency and employees' work experience.

[0003] The motor of the centrifugal fan is connected to the main shaft through a coupling. The main shaft is installed on two bearing boxes. The main shaft between the two bearing boxes is exposed to the outside. According to production regulations, the main shaft needs to be protected to prevent production safety accidents.

[0004] In Chinese patent: CN202320115080.X, a coupling adjustable shield for a ventilator is introduced, in which the shield is adjustable in length, width and height. At the same time, the shield has the beneficial effects of easy disassembly and assembly, saving time and effort. However, in actual use, the adjustment and extension of the height and width can be achieved through a set of structures, and when the length needs to be adjusted synchronously, the extended length remains consistent with the length when not extended, and the area of ​​the shield after extension is significantly larger than that before extension, resulting in the extension position being uncovered, posing a safety hazard. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides an adjustable spindle protective cover, which can effectively solve the problem in the prior art that the spindle needs to be covered and protected.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides an adjustable spindle protective cover, comprising an external protection adjustment structure, wherein the external protection adjustment structure is arranged in two opposite groups, and the bottom end of the external protection adjustment structure on one side is provided with an internal protection adjustment structure through a connecting column, and the two groups of the external protection adjustment structures each comprise an outer left sleeve, an outer right guard plate and an outer bottom fixing plate, the outer left sleeve, the outer right guard plate and the outer bottom fixing plate are all L-shaped structures, and both ends of the outer left sleeve are hollow structures without faces, the top end of the outer right guard plate extends outwards and the bottom end is a hollow structure without faces; The top end of the outer bottom fixing plate is an outwardly extending plug-in plate structure, and the top and bottom ends of the outer left sleeve and the bottom end of the outer right guard plate are all provided with circular notches. A positioning hole is provided in the middle of the plug-in plate of each group of the outer bottom fixing plate and the outer right guard plate, and a locking assembly is inserted into the positioning hole and the circular notch. The internal protection adjustment structure includes an inner left sleeve, an inner right guard plate and an inner bottom fixing plate. The inner left sleeve is an outer left sleeve structure without a circular notch, the inner right guard plate is an outer right guard plate without a circular notch and a positioning hole, and the inner bottom fixing plate is an outer bottom fixing plate without a positioning hole.

[0008] The front end plug-in structure of the outer right guard plate is inserted into the hollow structure at the front end of the outer left cover plate, and the front end plug-in structure of the inner right guard plate is inserted into the hollow structure at the front end of the inner left cover plate.

[0009] The locking assembly is a combination structure of a fastening bolt and a locking nut.

[0010] The length of the internal protection adjustment structure is twice that of the external protection adjustment structure, and the heights are the same. The outer diameter of the internal protection adjustment structure matches the inner diameter of the external protection adjustment structure.

[0011] The top end of the inner left cover plate is fixed to the bottom inner side wall of the outer left cover plate through a connecting column, and the top end of the inner right guard plate is fixed to the bottom inner side wall of the outer right guard plate through a connecting column.

[0012] One side of each group of the outer bottom fixing plates and the inner bottom fixing plates is penetrated by a connecting hole.

[0013] Compared with the known public technologies, the technical solution provided by this utility model has the following beneficial effects:

[0014] The utility model is provided with an external protection adjustment structure and an internal protection adjustment structure connected by a connecting column. When the present invention is in use, the extension and retraction can be adjusted according to the spacing of the main shafts. Among them, the adjustment of height and width can be achieved by two sets of external protection adjustment structures provided at the front and rear. By positioning the fastening bolts in the locking assembly in the circular notch and locking them with the locking nut and the fastening bolts, the length adjustment of the three sets of combined structures, namely, the front end plug-in plate of the outer right guard plate - the front end hollow of the outer left sleeve plate, the bottom hollow of the outer left sleeve plate - the front end plug-in plate of the outer bottom fixing plate, and the bottom hollow of the outer right guard plate - the front end plug-in plate of the outer bottom fixing plate, can be achieved. , to adapt to the main shaft structures of different sizes, the above-mentioned height and width adjustments can be achieved through a set of external protection adjustment structures, and as for the length adjustment, the two sets of external protection adjustment structures arranged in the front and rear can provide auxiliary protection through the internal temporal protection adjustment structure when the distance is stretched. Since the length of the inner part is twice that of the outer part, it can achieve full coverage when moving, and the structure arranged inside is similar to the external structure, which can be adjusted in height and width in conjunction with the external structure, and the inner right cover plate and the inner right guard plate are respectively fixed to the corresponding structures of the external set of protection adjustments through connecting columns, so that there will be no collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural breakdown diagram of the utility model;

[0018] Figure 3 It is a structural diagram of the external protection adjustment structure and the internal protection adjustment structure in the present utility model;

[0019] Figure 4 This is a structural breakdown diagram of the external protection adjustment structure in the utility model.

[0020] Figure numerals: 1. External protection adjustment structure; 11. Outer left cover; 12. Outer right guard plate; 13. Outer bottom fixing plate; 2. Connecting column; 3. Internal protection adjustment structure; 31. Inner left cover; 32. Inner right guard plate; 33. Inner bottom fixing plate; 4. Circular notch; 41. Positioning hole; 5. Locking assembly. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Example: An adjustable spindle protective cover, see attached Figure 1 -Attached Figure 4 , including an external protection adjustment structure 1, two groups of external protection adjustment structures 1 are arranged oppositely, and the bottom end of the external protection adjustment structure 1 on one side is provided with an internal protection adjustment structure 3 through a connecting column 2, and the two groups of external protection adjustment structures 1 include an outer left cover plate 11, an outer right guard plate 12 and an outer bottom fixing plate 13, the outer left cover plate 11, the outer right guard plate 12 and the outer bottom fixing plate 13 are all L-shaped structures, and both ends of the outer left cover plate 11 are hollow structures without faces, the top of the outer right guard plate 12 extends outwards as a plug-in structure, and the bottom end is a hollow structure without faces; the top of the outer bottom fixing plate 13 is a plug-in plate extending outwards Structure, the top and bottom ends of the outer left cover plate 11 and the bottom end of the outer right guard plate 12 are provided with circular notches 4, and the middle part of the plug-in plate of each group of outer bottom fixing plates 13 and outer right guard plate 12 is provided with positioning holes 41, and the interior of the positioning holes 41 and the circular notches 4 is inserted with locking components 5. The internal protection adjustment structure 3 includes an inner left cover plate 31, an inner right guard plate 32 and an inner bottom fixing plate 33. The inner left cover plate 31 is the structure of the outer left cover plate 11 without the circular notch 4, the inner right guard plate 32 is the outer right guard plate 12 without the circular notch 4 and the positioning hole 41, and the inner bottom fixing plate 33 is the outer bottom fixing plate 13 without the positioning hole 41;

[0024] The front end plug-in structure of the outer right guard plate 12 is inserted into the hollow structure at the front end of the outer left sleeve 11, and the front end plug-in structure of the inner right guard plate 32 is inserted into the hollow structure at the front end of the inner left sleeve 31; the locking assembly 5 is a combination structure of a fastening bolt and a locking nut; the length of the internal protection adjustment structure 3 is twice the length of the external protection adjustment structure 1, and the height is the same, and the outer diameter of the internal protection adjustment structure 3 is adapted to the inner diameter of the external protection adjustment structure 1; the top end of the inner left sleeve 31 is fixed to the bottom inner wall of the outer left sleeve 11 through the connecting column 2, and the top end of the inner right guard plate 32 is fixed to the bottom inner wall of the outer right guard plate 12 through the connecting column 2; a connecting hole is opened on one side of each group of outer bottom fixing plates 13 and inner bottom fixing plates 33.

[0025] By setting the external protection adjustment structure 1 and the internal protection adjustment structure 3 connected by the connecting column 2, when used in the present application, the extension and retraction can be adjusted according to the spacing of the main shafts, wherein the adjustment of the height and width can be achieved by the two sets of external protection adjustment structures 1 set in the front and rear, and the position of the fastening bolts in the locking assembly 5 in the circular groove 4 is achieved, and the locking nut and the fastening bolts are used to lock the front end plug plate of the outer right guard plate 12 - the front end hollow of the outer left cover plate 11, the bottom hollow of the outer left cover plate 11 - the front end plug plate of the outer bottom fixing plate 13, and the bottom hollow of the outer right guard plate 12 - the front end plug plate of the outer bottom fixing plate 13. The length of the structure can be adjusted to adapt to the main shaft structures of different sizes. The above-mentioned height and width adjustments can be achieved through a group of external protection adjustment structures 1, and the length adjustment is placed. The two groups of external protection adjustment structures 1 set in the front and back can be assisted by the internal protection adjustment structure when the distance is stretched. Since the length of the inner part is twice that of the outer part, it can have a full coverage effect when moving, and the structure similar to the external structure set inside can be adjusted in height and width in conjunction with the external structure, and the inner right sleeve and the inner right guard plate 32 are respectively fixed to the corresponding structures of the external group of protection adjustments through the connecting column 2, and there will be no collision.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An adjustable spindle protective cover, characterized in that: The invention comprises an external protection adjustment structure (1), wherein two groups of the external protection adjustment structures (1) are arranged opposite to each other, and an internal protection adjustment structure (3) is arranged at the bottom end of one side of the external protection adjustment structure (1) through a connecting column (2). The two groups of external protection adjustment structures (1) both include an outer left cover plate (11), an outer right guard plate (12) and an outer bottom fixing plate (13); the outer left cover plate (11), the outer right guard plate (12) and the outer bottom fixing plate (13) are all L-shaped structures, and both ends of the outer left cover plate (11) are hollow structures without faces, the top end of the outer right guard plate (12) is a plug-in structure extending outward, and the bottom end is a hollow structure without faces; the top end of the outer bottom fixing plate (13) is a plug-in structure extending outward, the top and bottom ends of the outer left cover plate (11) and the bottom end of the outer right guard plate (12) are both provided with circular notches (4), and the middle part of the plug-in plate of each group of the outer bottom fixing plate (13) and the outer right guard plate (12) is provided with a positioning hole (41), and a locking assembly (5) is inserted into the positioning hole (41) and the circular notch (4); The internal protection adjustment structure (3) comprises an inner left cover plate (31), an inner right guard plate (32) and an inner bottom fixing plate (33); the inner left cover plate (31) is a structure of an outer left cover plate (11) without a circular notch (4); the inner right guard plate (32) is an outer right guard plate (12) without a circular notch (4) and a positioning hole (41); and the inner bottom fixing plate (33) is an outer bottom fixing plate (13) without a positioning hole (41).

2. The adjustable spindle protective cover according to claim 1, characterized in that: The front end plug-in structure of the outer right guard plate (12) is inserted into the hollow structure at the front end of the outer left cover plate (11), and the front end plug-in structure of the inner right guard plate (32) is inserted into the hollow structure at the front end of the inner left cover plate (31).

3. The adjustable spindle protective cover according to claim 1, characterized in that: The locking assembly (5) is a combined structure of a fastening bolt and a locking nut.

4. The adjustable spindle protective cover according to claim 1, characterized in that: The length of the internal protection adjustment structure (3) is twice the length of the external protection adjustment structure (1), and the height is the same; the outer diameter of the internal protection adjustment structure (3) is adapted to the inner diameter of the external protection adjustment structure (1).

5. The adjustable spindle protective cover according to claim 4, characterized in that: The top end of the inner left cover plate (31) is fixed to the bottom inner side wall of the outer left cover plate (11) via a connecting column (2), and the top end of the inner right guard plate (32) is fixed to the bottom inner side wall of the outer right guard plate (12) via a connecting column (2).

6. The adjustable spindle protective cover according to claim 1, characterized in that: A connection hole is provided through one side of each set of the outer bottom fixing plate (13) and the inner bottom fixing plate (33).

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