Bottle protecting device

By designing a planar protective plate and assembly gap structure in the bottle protection device, the problems of cumbersome processing and inconvenient disassembly and assembly of existing devices are solved, achieving low-cost and efficient disassembly and assembly results.

CN224258240UActive Publication Date: 2026-05-19GUANGZHOU TECH LONG PACKAGING MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU TECH LONG PACKAGING MACHINERY CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing bottle protection devices suffer from cumbersome processes and high costs during manufacturing and installation, and are inconvenient to disassemble and assemble.

Method used

A bottle protection device is designed, wherein the protective plate of the second disc is flat on the opposite side and an assembly gap is left between the sides. The protective plate is connected by a support column and a fastener. The support column is provided with an annular fixing groove and a stepped slot for easy disassembly and assembly. The positioning component is used for stable connection.

Benefits of technology

It simplifies the process of disassembling and assembling the protective panel, reduces processing and raw material costs, and improves disassembly and assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of filling equipment, and discloses a bottle protecting device which comprises a star wheel seat, a first wheel disc, a second wheel disc and a supporting column, the first wheel disc and the second wheel disc are vertically arranged at intervals, and the star wheel seat penetrates through the second wheel disc to be connected with the first wheel disc; a plurality of second bottle clamping openings are annularly formed in the periphery of the second wheel disc at intervals, and the first bottle clamping openings correspond to the second bottle clamping openings one to one; the second wheel disc comprises a plurality of protection plates, each protection plate is connected with the first wheel disc through a plurality of supporting columns, and all the protection plates form an annular structure. In the circumferential direction of the second wheel disc, every two adjacent protection plates are provided with two opposite side faces, the two side faces are both planes, and an assembling gap used for disassembling and assembling the protection plates is formed between the two side faces. When any one of the protective plates is disassembled and assembled, the two adjacent protective plates do not interfere with each other, the protective plates do not need to be disassembled and assembled according to the sequence, and the disassembly and assembly efficiency of the protective plates is improved. The utility model has the advantages of simple structure and low processing cost.
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Description

Technical Field

[0001] This utility model relates to the field of filling equipment technology, and in particular to a bottle protection device. Background Technology

[0002] Currently, for the transportation of liquids such as alcoholic beverages, bottles are generally used for filling. Bottle conveying equipment typically uses bottle guards to transfer multiple bottles.

[0003] like Figure 1 As shown, the existing bottle protection device includes a star wheel seat 1', an upper wheel 2', and a lower wheel 3'. The upper wheel 2' and the lower wheel 3' are connected by a support column 4'. The star wheel seat 1' passes through the lower wheel 3' and is connected to the upper wheel 2'. The lower wheel 3' includes at least two disc bodies 31'. The two disc bodies 31' have upper steps 311' and lower steps 312' that are staggered on their adjacent sides. During assembly, the upper steps 311' and lower steps 312' are connected to each other.

[0004] The existing bottle protection star wheel has the following defects in practical application:

[0005] (i) For the lower wheel 3', the upper step 311' and lower step 312' of the wheel body 31' must be processed separately. The processing requires flipping, which is complicated and expensive.

[0006] (ii) When installing the lower wheel 3', the disc body 31' with the lower step 312' must be installed first, and then the disc body 31' with the upper step 311' must be installed, which is not convenient for quick disassembly and assembly. Utility Model Content

[0007] The purpose of this utility model embodiment is to provide a bottle protection device that has a simple structure, is easy to assemble and disassemble, and has low processing cost.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A bottle protection device is provided, comprising a star wheel base, a first wheel, a second wheel, and support pillars. The first wheel and the second wheel are arranged vertically at intervals. The star wheel base passes through the second wheel and is connected to the first wheel. The outer circumference of the first wheel is provided with a plurality of first bottle-holding openings, and the outer circumference of the second wheel is provided with a plurality of second bottle-holding openings, with each first bottle-holding opening corresponding to a second bottle-holding opening. The second wheel includes a plurality of protective plates, each of which is connected to the first wheel through a plurality of support pillars, and all the protective plates form a ring structure. Along the circumference of the second wheel, two adjacent protective plates have two opposite sides, both of which are planar, and there is an assembly gap between the two sides for assembling and disassembling the protective plates.

[0010] As a further embodiment of the bottle protection device, each of the protective plates is provided with a plurality of fixing holes spaced apart. Each fixing hole includes a first through hole and a second through hole. The diameter of the first through hole is larger than the diameter of the second through hole. The radial side of the first through hole communicates with the radial side of the second through hole. An annular fixing groove is provided on the outer periphery of the support column and near its lower end. The support column can pass through the first through hole, and the annular fixing groove is directly opposite the communication point between the first through hole and the second through hole. The protective plate can move toward the support column along the circumference of the second wheel so that the bottom of the annular fixing groove abuts against the wall of the second through hole. The bottle protection device also includes a first fixing member, through which the support column is fixedly connected to the protective plate.

[0011] Wherein, L is the minimum distance between the two opposite sides of two adjacent protective plates; with the axis of the second wheel as the center, the axis of the first through hole and the axis of the second through hole are located on the same arc, and the central angle of the arc between the axis of the first through hole and the axis of the second through hole is α; with the axis of the second wheel as the center, the distance between the axis of the bottle and the center is the radius of the arc, and the length of the arc corresponding to the central angle α is B, LB>0.

[0012] As a further option for the bottle protection device, LB = 1~5mm.

[0013] As a further embodiment of the bottle protection device, the protective plate is also provided with a stepped groove. The stepped groove is located on the upper surface of the protective plate. The stepped groove is coaxial with and connected to the second through hole. The radial side of the stepped groove is connected to the radial side of the first through hole. When the bottom of the annular fixing groove abuts against the hole wall of the second through hole, the support column is engaged with the stepped groove.

[0014] As a further embodiment of the bottle protection device, it also includes multiple sets of positioning components, with each of the protective plates corresponding to at least one set of positioning components; each set of positioning components includes a fixing plate and a positioning rod connected to the fixing plate, the fixing plate being sleeved on the support column, the positioning rod protruding from the lower surface of the fixing plate and spaced apart from the support column, the protective plate being provided with a positioning hole corresponding to the positioning rod, and the positioning rod being able to be inserted into the positioning hole.

[0015] As a further embodiment of the bottle protection device, the first fixing member includes a first bolt and a first washer. The lower end of the support column is provided with a first threaded hole. The first bolt passes through the first washer and is screwed into the first threaded hole for fixation. The outer diameter of the first washer is larger than the inner diameter of the fixing plate sleeved on the support column and smaller than the diameter of the first through hole.

[0016] As a further embodiment of the bottle protection device, the width of the two opposite sides of two adjacent protective plates extends radially along the second disc.

[0017] As a further embodiment of the bottle protection device, the lengths of the two opposite sides of two adjacent protective plates extend in the vertical direction.

[0018] As a further embodiment of the bottle protection device, each of the protective plates has the same central angle.

[0019] As a further embodiment of the bottle protection device, each of the protective plates has at least one mounting groove on its upper surface for mounting a marker block, and each mounting groove has a vent hole extending through its bottom.

[0020] Beneficial effects: This invention designs both sides of two adjacent guard plates along the circumference of the second disc as flat surfaces, and creates an assembly gap between the two sides to allow for the removal and installation of either guard plate. This ensures that the adjacent guard plates do not interfere with each other when removing or installing either guard plate, eliminating the need for a traditional sequential removal and installation process and improving the efficiency of guard plate removal and installation. Furthermore, the assembly gap between adjacent guard plates also saves on raw materials and processing costs. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a cross-sectional schematic diagram of an existing bottle protection device;

[0023] Figure 2 This is a cross-sectional schematic diagram of the bottle protection device (including the bottle body) described in an embodiment of the present utility model;

[0024] Figure 3 This is a cross-sectional schematic diagram of the bottle protection device described in an embodiment of the present utility model;

[0025] Figure 4 This is a top view of the second wheel in an embodiment of the present invention;

[0026] Figure 5 for Figure 4 A magnified view of part A in the middle;

[0027] Figure 6 This is a top view of the second disc after one of the guard plates is rotated, as described in an embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram showing the cooperation between the support column and the first fixing member according to an embodiment of the present utility model.

[0029] Figure 1 middle:

[0030] 1', Star Wheel; 2', Upper Wheel; 3', Lower Wheel; 31', Wheel Body; 311', Upper Step; 312', Lower Step; 4', Support;

[0031] Figures 2 to 7 middle;

[0032] 1. Bottle body;

[0033] 100. First wheel; 101. First bottle opening; 200. Second wheel; 201. Second bottle opening; 210. Protective plate; 211. First through hole; 212. Second through hole; 213. Stepped groove; 214. Positioning hole; 215. Mounting groove; 216. Vent hole; 220. Assembly gap; 300. Support column; 301. Annular fixing groove; 302. First threaded hole; 303. Second threaded hole; 304. Groove-shaped opening; 400. First fastener; 410. First bolt; 420. First washer; 500. Second fastener; 600. Fixing plate. Detailed Implementation

[0034] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are merely used for distinction in description and have no special meaning.

[0038] like Figure 2 and Figure 3 As shown, the bottle protection device of this utility model embodiment includes a star wheel seat (not shown in the figure), a first wheel 100, a second wheel 200, and a support column 300. The first wheel 100 and the second wheel 200 are arranged vertically at intervals. The star wheel seat passes through the second wheel 200 and is connected to the first wheel 100. The outer circumference of the first wheel 100 is provided with a plurality of first bottle-holding openings 101, and the outer circumference of the second wheel 200 is provided with a plurality of second bottle-holding openings 201. The first bottle-holding openings 101 and the second bottle-holding openings 201 correspond one-to-one. The second wheel 200 includes a plurality of protective plates 210. Each protective plate 210 is connected to the first wheel 100 through a plurality of support columns 300. All the protective plates 210 form a ring structure. Along the circumference of the second wheel 200, two adjacent protective plates 210 have two opposite sides. Both sides are flat, and there is an assembly gap 220 between the two sides for assembling and disassembling the protective plates 210.

[0039] In this embodiment, the second disc 200 is a ring structure composed of multiple guard plates 210. A star wheel seat can pass through the inner hole of this ring structure and connect to the first disc 100 located above it. The star wheel seat drives the first disc 100 to drive the second disc 200 to rotate synchronously, thereby realizing the conveying and transfer of the bottle 1. In this embodiment, by designing the opposing sides of two adjacent guard plates 210 along the circumference of the second disc 200 as flat, and spacing an assembly gap 220 between the two sides to allow for the disassembly and assembly of any one of the guard plates 210, the two adjacent guard plates 210 will not interfere with each other when disassembling or assembling any one of them, eliminating the need for a traditional sequential disassembly and assembly process, thus improving the efficiency of guard plate disassembly and assembly. Furthermore, spacing the adjacent guard plates 210 with an assembly gap 220 also saves raw materials and processing costs.

[0040] Furthermore, such as Figure 4 , Figure 5 and Figure 7 As shown, each protective plate 210 is provided with a plurality of fixing holes spaced apart. Each fixing hole includes a first through hole 211 and a second through hole 212. The diameter of the first through hole 211 is larger than the diameter of the second through hole 212. One radial side of the first through hole 211 communicates with one radial side of the second through hole 212. An annular fixing groove 301 is provided on the outer periphery of the support column 300 and near its lower end. The support column 300 can pass through the first through hole 211, and the annular fixing groove 301 is directly opposite the connection between the first through hole 211 and the second through hole 212. The protective plate 210 can move toward the support column 300 along the circumference of the second wheel 200 so that the bottom of the annular fixing groove 301 abuts against the hole wall of the second through hole 212. The bottle protection device also includes a first fixing member 400, through which the support column 300 is fixedly connected to the protective plate 210.

[0041] like Figure 6 As shown, L is the minimum distance between two opposite sides of two adjacent guard plates 210; with the axis of the second wheel 200 as the center, the axis of the first through hole 211 and the axis of the second through hole 212 are located on the same arc, and the central angle of the arc between the axis of the first through hole 211 and the axis of the second through hole 212 is α; with the axis of the second wheel 200 as the center, the distance between the axis of the bottle body 1 and the center is the radius of the arc, and the length of the arc corresponding to the central angle α is B, LB>0.

[0042] Understandably, after the upper end of the support column 300 is connected to the first wheel 100, the position of the support column 300 remains relatively fixed. When installing the second wheel 200, the first through hole 211 on the guard plate 210 needs to be aligned with the support column 300, so that the support column 300 passes through the first through hole 211 and the annular fixing groove 301 near its lower end is aligned with the connection between the first through hole 211 and the second through hole 212. Then, the guard plate 210 is pushed towards the support column 300 along the circumference of the second wheel 200. The annular fixing groove 301 of the support column 300 passes through the connection between the first through hole 211 and the second through hole 212 until the annular fixing groove 301 abuts against the hole wall of the second through hole 212. At this time, the side wall of the annular fixing groove 301 abuts against the upper and lower sides of the guard plate 210 to limit the position of the support column 300. Then, the first fixing member 400 is used to fix the support column 300 on the guard plate 210.

[0043] In this embodiment, the minimum distance between the two opposite sides of two adjacent guard plates 210 is L; the path when the guard plate 210 moves circumferentially along the second wheel 200 can be approximated as an arc between the axis of the first through hole 211 and the axis of the second through hole 212 when the axis of the second wheel 200 is the center; with the axis of the second wheel 200 as the center, the distance between the axis of the bottle body 1 and the center of the arc is the radius of the arc, and the length of the arc corresponding to the central angle α is B. When L is greater than B, the minimum distance between the two opposite sides of two adjacent guard plates 210 is greater than the length of the path of movement of the bottle axis, so that the disassembly and assembly of the two adjacent guard plates 210 will not interfere with each other.

[0044] Furthermore, LB = 1–5 mm. For example, the difference between L and B can be 1 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2 mm, 2.2 mm, 2.5 mm, 2.8 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, or 5 mm, etc. By controlling the difference between L and B to 1–5 mm, it is possible to ensure that there is sufficient assembly clearance 220 between adjacent protective plates 210, and that a sufficient number of second bottle openings 201 can be opened on the outer periphery of each protective plate 210, thereby improving the transfer efficiency of the bottle body 1 of the bottle protection device.

[0045] As shown in the figure, the guard plate 210 is also provided with a stepped groove 213. The stepped groove 213 is located on the upper surface of the guard plate 210. The stepped groove 213 is coaxial with and connected to the second through hole 212. The radial side of the stepped groove 213 is connected to the radial side of the first through hole 211. When the bottom of the annular fixing groove 301 abuts against the hole wall of the second through hole 212, the support column 300 is engaged with the stepped groove 213, thereby further improving the engagement stability between the support column 300 and the guard plate 210.

[0046] In this embodiment, a stepped groove 213 is provided on the upper surface of the guard plate 210, so that the upper surface of the guard plate 210 only needs to be processed once, reducing the processing and flipping process. For example, the depth of the stepped groove 213 is 1-3mm, which can reduce the processing depth and save processing time.

[0047] In this embodiment, the upper end of the support column 300 is fixedly connected to the first wheel 100 via a second fixing member 500. The second fixing member 500 includes a second bolt and a second washer. A second threaded hole 303 is provided at the upper end of the support column 300. The upper end of the support column 300 passes through the first wheel 100, and the second bolt passes through the second washer and is screwed to the second threaded hole 303 for fixation.

[0048] Furthermore, such as Figure 2 , Figure 3 and Figure 5 As shown, the bottle protection device also includes positioning components, with each protective plate 210 corresponding to at least one set of positioning components; each set of positioning components includes a fixed plate 600 and a positioning rod (not shown in the figure) connected to the fixed plate 600. The fixed plate 600 is sleeved on the support column 300, and the positioning rod protrudes from the lower surface of the fixed plate 600 and is spaced apart from the support column 300. The protective plate 210 is provided with a positioning hole 214 corresponding to the positioning rod in the vertical direction, and the positioning rod can be inserted into the positioning hole 214.

[0049] In this embodiment, the fixing plate 600 is sleeved on the support column 300 and is inserted into the positioning hole 214 on the guard plate 210 through the positioning rod to prevent the support column 300 from shaking relative to the guard plate 210.

[0050] In the prior art, when a certain guard plate 210 is removed, the fixing plate 600 and the positioning rod will slide down along the support column 300. Therefore, as... Figure 2 , Figure 3 and Figure 7 As shown, in this embodiment, a first washer 420 is provided at the lower end of the support column 300, and the first washer 420 is fixed to the lower end of the support column 300 by a first bolt 410 to prevent the fixing plate 600 and the positioning rod from slipping off. Specifically, the first fixing member 400 in this embodiment includes a first bolt 410 and a first washer 420. The outer diameter of the first washer 420 is larger than the inner diameter of the fixing plate 600 sleeved on the support column 300 and smaller than the diameter of the first through hole 211. A first threaded hole 302 is provided at the lower end of the support column 300, and the first bolt 410 passes through the first washer 420 and is screwed into the first threaded hole 302 for fixation.

[0051] Furthermore, the width of the two opposite sides of two adjacent guard plates 210 extends radially along the second wheel 200. In other words, the two sides are set at a certain angle. Therefore, L is the minimum distance between the two opposite sides of two adjacent guard plates 210 after the second wheel 200 is assembled. Since the movement path of the guard plate 210 is arc-shaped when it is pushed, this embodiment designs the width of the two opposite sides of two adjacent guard plates 210 to extend radially along the second wheel 200, which can better match the movement trajectory of the guard plate 210.

[0052] Of course, in other embodiments, the two opposite sides of two adjacent guard plates 210 can also be designed to be parallel to each other, that is, the distance between the two sides is consistent, which is L. When the guard plate 210 is pushed, one side will tilt relative to the other side and be set at an angle, but the two sides will not contact each other and will not interfere with each other.

[0053] When disassembling a certain guard plate 210, lift the fixing plate 600 and the positioning rod upwards to separate the positioning rod from the positioning hole 214 on the guard plate 210. Then rotate the guard plate 210 so that the support column 300 is located in the first through hole 211. Then pull down the guard plate 210 to complete the disassembly. Since the outer diameter of the first washer 420 is smaller than the diameter of the first through hole 211, the first washer 420 can pass smoothly through the first through hole 211 when the guard plate 210 is pulled down. Since the outer diameter of the first washer 420 is larger than the inner diameter of the fixing plate 600, the first washer 420 will block the fixing plate 600 and prevent the fixing plate 600 from causing the positioning rod to slide down along the support column 300.

[0054] Furthermore, the lengths of the two opposite sides of two adjacent guard plates 210 extend vertically to facilitate the design of the assembly gap 220 between the two sides.

[0055] In this embodiment, each guard plate 210 has the same central angle, that is, the second wheel 200 is divided into n equal parts to improve the assembly efficiency of the second wheel 200.

[0056] For example, the second wheel 200 consists of four guard plates 210 with a central angle of approximately 90°.

[0057] In this embodiment, each guard plate 210 has at least one mounting groove 215 for mounting the marker block on its upper surface. Each mounting groove 215 has a vent hole 216 through its bottom. This structural design allows the marker block to be smoothly embedded into the mounting groove 215 and improves the installation stability of the marker block.

[0058] In this embodiment, the outer periphery of the support column 300 is also provided with a groove-shaped bayonet 304. The support column 300 is clamped by using a wrench to clamp the groove-shaped bayonet 304, which is convenient to operate.

[0059] The installation steps of the bottle protection device in this embodiment are as follows: First, fix the star wheel seat, the first wheel 100 and the support column 300 (the first bolt 410 and the first washer 420 are always fixed at the lower end of the support column 300). Then, align the first through hole 211 on the protective plate 210 with the support column 300 and push the protective plate 210 upward. Then, rotate the protective plate 210 so that the support column 300 is engaged with the protective plate 210, so that the bottom of the annular fixing groove 301 abuts against the hole wall of the second through hole 212 and the support column 300 is engaged with the stepped groove 213. Then, insert the positioning rod into the corresponding positioning hole 214.

[0060] Compared with the prior art, the guard plate 210 of the second wheel 200 in this embodiment has a simple structure, which can reduce processing costs, and the disassembly and assembly can be done in any order, making disassembly and assembly quick and efficient.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A bottle protection device, characterized in that, The device includes a star wheel base, a first wheel, a second wheel, and support pillars. The first wheel and the second wheel are spaced apart vertically. The star wheel base passes through the second wheel and connects to the first wheel. The outer circumference of the first wheel has multiple first bottle-holding openings, and the outer circumference of the second wheel has multiple second bottle-holding openings. The first bottle-holding openings correspond one-to-one with the second bottle-holding openings. The second wheel includes multiple guard plates, each guard plate being connected to the first wheel via several support pillars. All the guard plates form a ring structure. Along the circumference of the second wheel, adjacent guard plates have two opposite sides, both of which are planar, and there is an assembly gap between the two sides for assembling and disassembling the guard plates.

2. The bottle protection device according to claim 1, characterized in that, Each of the protective plates is provided with a plurality of fixing holes spaced apart. Each fixing hole includes a first through hole and a second through hole. The diameter of the first through hole is larger than the diameter of the second through hole. The radial side of the first through hole communicates with the radial side of the second through hole. An annular fixing groove is provided on the outer periphery of the support column and near its lower end. The support column can pass through the first through hole, and the annular fixing groove is directly opposite the communication point between the first through hole and the second through hole. The protective plate can move toward the support column along the circumference of the second wheel so that the bottom of the annular fixing groove abuts against the wall of the second through hole. The bottle protection device also includes a first fixing member, through which the support column is fixedly connected to the protective plate. Wherein, L is the minimum distance between the two opposite sides of two adjacent protective plates; with the axis of the second wheel as the center, the axis of the first through hole and the axis of the second through hole are located on the same arc, and the central angle of the arc between the axis of the first through hole and the axis of the second through hole is α; with the axis of the second wheel as the center, the distance between the axis of the bottle and the center is the radius of the arc, and the length of the arc corresponding to the central angle α is B, LB>0.

3. The bottle protection device according to claim 2, characterized in that, LB = 1-5 mm.

4. The bottle protection device according to claim 2, characterized in that, The guard plate is also provided with a stepped groove, which is located on the upper surface of the guard plate. The stepped groove is coaxial with and connected to the second through hole, and one radial side of the stepped groove is connected to one radial side of the first through hole. When the bottom of the annular fixing groove abuts against the hole wall of the second through hole, the support column is engaged with the stepped groove.

5. The bottle protection device according to claim 2, characterized in that, It also includes multiple sets of positioning components, with each of the guard plates corresponding to at least one set of positioning components; each set of positioning components includes a fixing plate and a positioning rod connected to the fixing plate, the fixing plate is sleeved on the support column, the positioning rod protrudes from the lower surface of the fixing plate and is spaced apart from the support column, the guard plate is provided with a positioning hole corresponding to the positioning rod, and the positioning rod can be inserted into the positioning hole.

6. The bottle protection device according to claim 5, characterized in that, The first fastener includes a first bolt and a first washer. The lower end of the support column has a first threaded hole. The first bolt passes through the first washer and is screwed into the first threaded hole for fixation. The outer diameter of the first washer is larger than the inner diameter of the fixing plate sleeved on the support column and smaller than the diameter of the first through hole.

7. The bottle protection device according to any one of claims 1 to 6, characterized in that, The width of the two opposite sides of two adjacent guard plates extends radially along the second disc.

8. The bottle protection device according to any one of claims 1 to 6, characterized in that, The lengths of the two opposite sides of two adjacent guard plates extend in the vertical direction.

9. The bottle protection device according to any one of claims 1 to 6, characterized in that, Each of the aforementioned guard plates has the same central angle.

10. The bottle protection device according to any one of claims 1 to 6, characterized in that, Each of the protective plates has at least one mounting groove on its upper surface for mounting a marker block, and each mounting groove has a vent hole extending through its bottom.