Bottle clamping mechanism and filling equipment

Abstract

The utility model discloses a bottle clamping mechanism and filling equipment, and belongs to the technical field of filling. The bottle clamping mechanism comprises a rotating shaft, a rotating disc and a plurality of clamps installed on the rotating disc at intervals in the circumferential direction of the rotating disc, each clamp comprises a clamping piece, a shifting piece and a positioning piece, and the two clamping pieces are rotatably installed on the upper surface of the rotating disc through pivots and are oppositely arranged; the shifting piece rotatably penetrates through the mounting hole of the turntable and is used for driving the two clamping pieces to rotate, and the part, located in the mounting hole, of the shifting piece is provided with a positioning groove extending in the circumferential direction of the shifting piece; and one end of the positioning piece is in threaded connection with the fixing hole of the rotating disc and can extend into the positioning groove, so that the shifting piece is positioned and mounted, and the shifting piece is prevented from being separated from the mounting hole. Due to the fact that the positioning piece is assembled from the side face of the rotary disc, workers can conveniently disassemble and assemble the positioning piece, then the workers can conveniently disassemble and assemble the shifting piece, the replacement efficiency is high, and the operation efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the field of filling technology, and in particular to a bottle clamping mechanism and filling equipment. Background Art

[0002] In the field of filling, during the cleaning, sterilization, filling, and sealing processes of bottles, the bottles need to be transferred using a bottle clamping mechanism. In related technologies, the bottle clamping mechanism usually includes a turntable and a number of clamps evenly spaced along the circumference of the turntable. The clamps are used to clamp the bottlenecks of the bottles. The turntable can rotate around its axis so that the clamps can transfer the bottles to the required workstations. The clamps include a first clamping member, a second clamping member, and a toggle member. By driving the toggle member to rotate, the first clamping member and the second clamping member rotate to clamp the bottleneck of the bottle. Due to the high-frequency rotation of the toggle member, it is easy to wear and is a consumable part that needs to be replaced frequently. The original toggle member has a complex installation structure, and disassembly and assembly is time-consuming and labor-intensive, affecting work efficiency.

[0003] This section provides background information related to the present application which is not necessarily prior art. Utility Model Content

[0004] The purpose of the present application is to solve or at least alleviate part or all of the above problems. To this end, the purpose of the present application is to provide a bottle clamping mechanism and filling equipment, the clamping structure of which is simple, easy to disassemble and assemble, and conducive to improving operating efficiency.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a bottle clamping mechanism, comprising a rotating shaft, a rotating disk, and a clamp, wherein the rotating disk is connected to the rotating shaft, and a plurality of clamps are installed on the rotating disk at intervals along the circumference of the rotating disk, wherein the rotating disk has a mounting hole extending along its axial direction and a fixing hole perpendicularly connected to the mounting hole; each of the clamps comprises:

[0007] Clamping members, wherein the two clamping members are rotatably mounted on the upper surface of the turntable via a pivot and are arranged opposite to each other, and the clamping ends of the two clamping members cooperate to form a clamping cavity for clamping the bottleneck of the bottle;

[0008] a toggle member rotatably inserted into the mounting hole and used to drive the two clamping members to rotate, wherein the portion of the toggle member located in the mounting hole has a positioning groove extending along its circumference;

[0009] A positioning member, one end of which is threadedly connected to the fixing hole and can extend into the positioning groove.

[0010] As an optional solution of the bottle clamping mechanism, the bottle clamping mechanism further includes a fixing seat and a fixing cover, the fixing seat is fixed to the rotating shaft, the fixing cover is detachably fixedly connected to the fixing seat, and the turntable is clamped between the fixing seat and the fixing cover.

[0011] As an optional solution for the bottle clamping mechanism, the bottle clamping mechanism also includes a locking piece, the turntable has an avoidance hole, the fixing seat has a through hole, the fixing cover has a threaded blind hole that can be connected to the through hole, and the locking piece passes through the through hole and the avoidance hole in sequence and is threadedly connected to the threaded blind hole.

[0012] As an optional solution for the bottle clamping mechanism, the center line of the avoidance hole coincides with the rotation axis of the turntable, the fixed cover includes a cover portion and a connecting portion, the connecting portion extends into the avoidance hole, and the threaded blind hole is provided on the connecting portion, and at least a portion of the cover portion can abut against the upper surface of the turntable.

[0013] As an optional solution of the bottle clamping mechanism, the avoidance hole is circular in shape, the connecting portion is cylindrical in shape, and the connecting portion is clearance-matched with the avoidance hole.

[0014] As an optional solution of the bottle clamping mechanism, the turntable includes a coaxially arranged large diameter portion and a small diameter portion, the pivot is fixed to the outer edge of the large diameter portion, and the fixing hole is opened in the outer peripheral wall of the small diameter portion.

[0015] As an optional solution of the bottle clamping mechanism, the lower surface of the large-diameter portion has a guide groove corresponding to the fixing hole and extending along the radial direction thereof.

[0016] As an optional solution for the bottle clamping mechanism, the toggle member includes a driving part, a rotating part and a toggle part, the driving part passes through the mounting hole and extends between the two oppositely arranged clamping members, the rotating part rotates with the mounting hole, and the outer peripheral wall of the rotating part has the positioning groove, and the toggle part is located outside the mounting hole.

[0017] As an optional solution of the bottle clamping mechanism, the bottle clamping mechanism further includes a shaft seat and a clamp driving assembly, the shaft seat is rotatably sleeved outside the rotating shaft, and the clamp driving assembly is fixed to the shaft seat and is used to drive the toggle part to rotate.

[0018] In a second aspect, the present application provides a filling device, comprising a bottle supporting mechanism and a bottle clamping mechanism as described above, wherein the bottle supporting mechanism is used to support the bottle, and the bottle clamping mechanism is used to clamp the bottleneck of the bottle conveyed by the bottle supporting mechanism.

[0019] The beneficial effects of this application are:

[0020] The bottle clamping mechanism provided by the present application includes a rotating shaft, a rotating disk, and a plurality of clamps installed on the rotating disk at intervals along the circumference of the rotating disk. Each clamp includes a clamping member, a toggle member, and a positioning member. The two clamping members are rotatably mounted on the upper surface of the rotating disk via a pivot and are arranged relative to each other. The toggle member is rotatably inserted into the mounting hole of the rotating disk and is used to drive the two clamping members to rotate. The portion of the toggle member located in the mounting hole has a positioning groove extending along its circumference. One end of the positioning member is threadedly connected to the fixing hole of the rotating disk and can extend into the positioning groove, thereby achieving the positioning installation of the toggle member and preventing the toggle member from being separated from the mounting hole. Since the positioning member is assembled from the side of the rotating disk, it is convenient for workers to disassemble and install the positioning member, and thus the toggle member. The replacement efficiency is high, which can improve work efficiency.

[0021] The filling equipment provided in this application is beneficial to improving operating efficiency by applying the above-mentioned bottle clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without any creative work.

[0023] Figure 1 A structural schematic diagram of a bottle clamping mechanism provided in an embodiment of the present application is shown.

[0024] Figure 2 A cross-sectional schematic diagram of a bottle clamping mechanism provided in an embodiment of the present application is shown.

[0025] Figure 3 Shown Figure 2 A partial enlarged view of the clamp of the middle bottle clamping mechanism.

[0026] Figure 4 A partial structural schematic diagram of a bottle clamping mechanism provided in an embodiment of the present application is shown.

[0027] Figure 5 Shown Figure 2 A partial enlarged view of the turntable of the middle bottle clamping mechanism.

[0028] Reference numerals:

[0029] 100. Bottle;

[0030] 1. Rotating shaft;

[0031] 2. Turntable; 201. Avoidance hole; 202. Mounting hole; 21. Large diameter portion; 211. Guide groove; 22. Small diameter portion; 221. Fixing hole;

[0032] 31. Clamping member; 32. Driving member; 321. Driving portion; 322. Rotating portion; 3221. Positioning slot; 323. Driving member; 33. Positioning member; 34. Elastic member; 35. Pressing plate; 36. Pivot;

[0033] 4. Fixing seat; 41. Through hole;

[0034] 5. Fixed cover; 50. Accommodating groove; 51. Cover portion; 52. Connecting portion; 521. Threaded blind hole;

[0035] 6. Locking parts;

[0036] 7. Axle seat;

[0037] 81. Mounting frame; 811. First frame; 812. Second frame; 82. First driving column; 83. Second driving column. DETAILED DESCRIPTION

[0038] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0039] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0040] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0041] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0042] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0043] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0044] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0045] The present application provides a filling device comprising a bottle supporting mechanism and a bottle clamping mechanism. The bottle supporting mechanism is used to support bottles, and the bottle clamping mechanism is used to clamp the necks of bottles conveyed by the bottle supporting mechanism. There are multiple bottle clamping mechanisms, which are arranged in sequence, with adjacent bottle clamping mechanisms arranged tangentially, to enable transfer and delivery of bottles, thereby enabling bottles to be conveyed to desired workstations using multiple bottle clamping mechanisms.

[0046] Figure 1 A structural schematic diagram of a bottle clamping mechanism provided in an embodiment of the present application is shown. Figure 2 FIG1 shows a cross-sectional schematic diagram of the bottle clamping mechanism provided in an embodiment of the present application. Figures 1 to 2As shown, the bottle clamping mechanism includes a rotating shaft 1, a turntable 2 and a clamp. The turntable 2 is mounted on the rotating shaft 1. A plurality of clamps are mounted on the turntable 2 at intervals along the circumference of the turntable 2. Each clamp is used to clamp the bottleneck of the bottle 100. The turntable 2 is driven to rotate by the rotating shaft 1 so that the clamp transfers the bottle 100 to the desired position.

[0047] It should be noted that the bottle clamping mechanism provided in the embodiment of the present application can be used for clamping and transporting empty plastic bottles, and can also be used for clamping and transporting empty glass bottles. During the transportation process, there is no need to set up bottle body protective parts, which can reduce equipment costs.

[0048] Figure 3 Shown Figure 2 A partial enlarged view of the clamp of the bottle clamping mechanism. Figure 3 Combined with Figures 1 to 2 As shown, the turntable 2 has a mounting hole 202 extending along its axial direction and a fixing hole 221 vertically connected to the mounting hole 202; each clamp includes a clamping member 31, a toggle member 32 and a positioning member 33, and the two clamping members 31 are rotatably mounted on the upper surface of the turntable 2 through a pivot 36 and are arranged opposite to each other, and the clamping ends of the two clamping members 31 cooperate to form a clamping cavity for clamping the bottleneck of the bottle 100; the toggle member 32 is rotatably inserted into the mounting hole 202 and is used to drive the two clamping members 31 to rotate, and the portion of the toggle member 32 located in the mounting hole 202 has a positioning groove 3221 extending along its circumference; one end of the positioning member 33 is threadedly connected to the fixing hole 221 and can extend into the positioning groove 3221, thereby realizing the positioning installation of the toggle member 32 and preventing the toggle member 32 from disengaging from the mounting hole 202. Since the positioning member 33 is assembled from the side of the turntable 2, it is convenient for the staff to disassemble and assemble the positioning member 33, and then it is convenient for the staff to disassemble and assemble the toggle member 32, the replacement efficiency is high, and the working efficiency can be improved.

[0049] The turntable 2 includes a coaxially arranged large-diameter portion 21 and a small-diameter portion 22. A pivot 36 is fixed to the outer edge of the large-diameter portion 21, and a fixing hole 221 is defined in the outer peripheral wall of the small-diameter portion 22. This arrangement shortens the length of the pivot 36, facilitating connection between the pivot 36 and the turntable 2. It also shortens the length of the positioning member 33, facilitating connection between the positioning member 33 and the turntable 2.

[0050] The lower surface of the large-diameter portion 21 has a guide groove 211 extending radially from the fixing hole 221 and corresponding thereto. This guide groove 211 serves to position and guide the positioning member 33, facilitating its assembly and positioning. In this embodiment, the positioning member 33 is a headed bolt, and the guide groove 211 serves to position and guide the head of the headed bolt. Specifically, the guide groove 211 is in the shape of an arc.

[0051] The toggle member 32 includes a driving portion 321, a rotating portion 322 and a toggle portion 323. The driving portion 321 passes through the mounting hole 202 and extends between the two oppositely arranged clamping members 31. The rotating portion 322 rotates with the mounting hole 202, and the outer peripheral wall of the rotating portion 322 has a positioning groove 3221. The toggle portion 323 is located outside the mounting hole 202. Toggling the toggle portion 323 can rotate the driving portion 321 to drive the two clamping members 31 to rotate to an open state.

[0052] The clamp further includes an elastic member 34, one end of which is connected to one of the clamping members 31, and the other end of which is connected to the other clamping member 31. The elastic member 34 is used to restore the two clamping members 31 to the clamped state. For example, the elastic member 34 can be a tension spring, which has a sufficiently large elastic force to ensure that the clamp stably clamps the bottle 100.

[0053] In this embodiment, the clamp further includes a pressing plate 35 , which is fixed to the upper surface of the turntable 2 and covers the rear half of the two clamping members 31 , thereby preventing foreign matter such as dust from falling and reducing potential safety hazards.

[0054] It should be noted that the working principle of the toggle member 32 driving the two clamping members 31 to rotate to clamp the bottleneck of the bottle 100 or release the bottleneck of the bottle 100 belongs to the conventional technology of the bottle clamping mechanism in the filling field and will not be repeated here.

[0055] To achieve automatic opening or clamping of the clamp, the bottle clamping mechanism further includes a shaft seat 7 and a clamp drive assembly. The shaft seat 7 is rotatably mounted on the outer surface of the rotating shaft 1. The clamp drive assembly is fixed to the shaft seat 7 and is used to drive the toggle portion 323 to rotate. In other words, while the turntable 2 drives the clamp to rotate, the shaft seat 7 and the clamp drive assembly do not rotate. When the clamp rotates to the clamp drive assembly, the clamp drive assembly drives the clamp to open or clamp.

[0056] Figure 4 FIG. 1 shows a partial structural diagram of the bottle clamping mechanism provided in an embodiment of the present application. Figure 4 Combine Figure 2As shown, the clamp drive assembly includes a mounting frame 81, a first drive column 82 and a second drive column 83, the mounting frame 81 is fixed to the shaft seat 7, the first drive column 82 and the second drive column 83 are both installed on the mounting frame 81, and the connecting line between the first drive column 82 and the second drive column 83 passes through the rotation axis of the turntable 2, and the distance from the first drive column 82 to the rotation axis of the turntable 2 is greater than the distance from the second drive column 83 to the rotation axis of the turntable 2. During the process of the turntable 2 driving the clamp thereon to rotate, when the clamp rotates to the first driving column 82, the first driving column 82 abuts against the toggle part 323 of the toggle member 32, and the toggle part 323 is driven to drive the entire toggle member 32 to rotate, so that the driving part 321 of the toggle member 32 drives the two clamping members 31 to rotate to the open state; when the clamp continues to rotate to the second driving column 83, the second driving column 83 abuts against the toggle part 323 of the toggle member 32, and the toggle part 323 is driven to drive the entire toggle member 32 to rotate in the opposite direction. At this time, the driving part 321 has no force on the two clamping members 31, and the two clamping members 31 can be rotated to the clamping state under the action of the elastic member 34.

[0057] In this embodiment, the mounting frame 81 includes a first frame body 811 and a second frame body 812, which are independently fixed to the shaft seat 7. The first driving column 82 is fixed to the first frame body 811, and the second driving column 83 is fixed to the second frame body 812.

[0058] Figure 5 Shown Figure 2 A partial enlarged view of the turntable 2 of the bottle clamping mechanism. Figure 5 Combine Figure 1 As shown, the bottle clamping mechanism further includes a fixing seat 4 and a fixing cover 5. The fixing seat 4 is fixed to the rotating shaft 1. The fixing cover 5 is detachably fixedly connected to the fixing seat 4. The turntable 2 is clamped between the fixing seat 4 and the fixing cover 5 so that the turntable 2 rotates with the rotating shaft 1.

[0059] The bottle clamping mechanism further includes a locking member 6. The turntable 2 has an escape hole 201, the fixing base 4 has a through hole 41, and the fixing cover 5 has a threaded blind hole 521 that communicates with the through hole 41. The locking member 6 passes through the through hole 41 and the escape hole 201 in sequence and is threadedly connected to the threaded blind hole 521. This arrangement, on the one hand, eliminates the need for a through hole in the fixing cover 5, which not only facilitates cleaning of the fixing cover 5 but also improves the overall aesthetics of the bottle clamping mechanism.

[0060] In this embodiment, the centerline of the clearance hole 201 coincides with the rotational axis of the turntable 2. The fixed cover 5 includes a cover portion 51 and a connecting portion 52. The connecting portion 52 extends into the clearance hole 201 and defines a threaded blind hole 521. At least a portion of the cover portion 51 is capable of abutting against the upper surface of the turntable 2. This arrangement increases the connection length between the locking member 6 and the fixed cover 5 to a certain extent, thereby improving the connection strength of the locking member 6 to the fixing base 4 and the fixed cover 5, ensuring stable clamping of the turntable 2.

[0061] Furthermore, the avoidance hole 201 is a circular hole, and the connecting portion 52 of the fixing cover 5 extending into the avoidance hole 201 is cylindrical. The connecting portion 52 is loosely fitted with the avoidance hole 201, so that the connecting portion 52 can also support and position the turntable 2, making it easy to adjust the installation position of the turntable 2 during installation. In addition, the turntable 2 is clamped between the fixing seat 4 and the fixing cover 5, and the connecting portion 52 of the fixing cover 5 is loosely rotatably fitted with the avoidance hole 201, so that the turntable 2 is not locked and fixed to the rotating shaft 1. On the one hand, the turntable 2 rotates with the rotating shaft 1. On the other hand, when the clamp on the turntable 2 encounters an obstacle, the turntable 2 can rotate relative to the fixing seat 4, the fixing cover 5 and the rotating shaft 1, thereby preventing the power source of the rotating shaft 1 from being overloaded and damaged.

[0062] During the installation of the turntable 2, the turntable 2 is first placed on the fixing base 4, and then the fixing cover 5 is placed on the turntable 2, and then the fixing base 4 and the fixing cover 5 are locked using the locking piece 6. Before the locking piece 6 is completely tightened, the clamping force of the fixing base 4 and the fixing cover 5 on the turntable 2 is relatively small, and the turntable 2 can be rotated 360° relative to the fixing base 4 and the fixing cover 5 to facilitate the adjustment of the position of the turntable 2 and improve the installation accuracy of the turntable 2.

[0063] The surface of the fixing cover 5 facing the fixing base 4 has a receiving groove 50 for accommodating a fastener between the fixing base 4 and the rotating shaft 1. Specifically, the fixing base 4 is first fixed to the end of the rotating shaft 1, wherein the center of the fixing base 4 is fixedly connected to the rotating shaft 1 via a fastener. Because the head of the fastener is exposed on the upper surface of the fixing base 4, when the fixing cover 5 is installed, the receiving groove 50 on the fixing cover 5 can accommodate the head of the fastener. This not only ensures stable assembly of the fixing cover 5 and the fixing base 4, but also reduces the weight of the fixing cover 5 and reduces material costs.

[0064] The above shows and describes the basic principles, main features and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of this application.

Claims

1. A bottle clamping mechanism, characterized in that: The invention comprises a rotating shaft (1), a rotating disk (2) and a clamp, wherein the rotating disk (2) is connected to the rotating shaft (1), and a plurality of clamps are installed on the rotating disk (2) at intervals along the circumference of the rotating disk (2), and the rotating disk (2) has a mounting hole (202) extending along its axial direction and a fixing hole (221) vertically connected to the mounting hole (202); each of the clamps comprises: Clamping members (31), two clamping members (31) are rotatably mounted on the upper surface of the turntable (2) via a pivot (36) and are arranged opposite to each other, and the clamping ends of the two clamping members (31) cooperate to form a clamping cavity for clamping the bottleneck of the bottle (100); A toggle member (32) is rotatably inserted into the mounting hole (202) and is used to drive the two clamping members (31) to rotate. The portion of the toggle member (32) located in the mounting hole (202) has a positioning groove (3221) extending along its circumference. A positioning member (33) has one end threadedly connected to the fixing hole (221) and capable of extending into the positioning groove (3221).

2. The bottle clamping mechanism according to claim 1, characterized in that: The bottle clamping mechanism further comprises a fixing seat (4) and a fixing cover (5), wherein the fixing seat (4) is fixed to the rotating shaft (1), the fixing cover (5) is detachably fixedly connected to the fixing seat (4), and the turntable (2) is clamped between the fixing seat (4) and the fixing cover (5).

3. The bottle clamping mechanism according to claim 2, characterized in that: The bottle clamping mechanism further comprises a locking member (6); the turntable (2) has a relief hole (201); the fixing seat (4) has a through hole (41); the fixing cover (5) has a threaded blind hole (521) capable of communicating with the through hole (41); the locking member (6) sequentially passes through the through hole (41) and the relief hole (201) and is threadedly connected to the threaded blind hole (521).

4. The bottle clamping mechanism according to claim 3, characterized in that: The center line of the avoidance hole (201) coincides with the rotation axis of the turntable (2); the fixed cover (5) comprises a cover portion (51) and a connecting portion (52); the connecting portion (52) extends into the avoidance hole (201), and the threaded blind hole (521) is provided on the connecting portion (52); at least a portion of the cover portion (51) is capable of abutting against the upper surface of the turntable (2).

5. The bottle clamping mechanism according to claim 4, characterized in that: The avoidance hole (201) is circular in shape, the connecting portion (52) is cylindrical in shape, and the connecting portion (52) and the avoidance hole (201) are clearance-matched.

6. The bottle clamping mechanism according to claim 1, characterized in that: The turntable (2) comprises a coaxially arranged large-diameter portion (21) and a small-diameter portion (22); the pivot (36) is fixed to the outer edge of the large-diameter portion (21); and the fixing hole (221) is opened on the outer peripheral wall of the small-diameter portion (22).

7. The bottle clamping mechanism according to claim 6, characterized in that: The lower surface of the large diameter portion (21) has a guide groove (211) corresponding to the fixing hole (221) and extending along the radial direction thereof.

8. The bottle clamping mechanism according to any one of claims 1 to 7, characterized in that: The toggle member (32) comprises a driving portion (321), a rotating portion (322) and a toggle member (323); the driving portion (321) passes through the mounting hole (202) and extends between the two clamping members (31) arranged opposite to each other; the rotating portion (322) is rotationally engaged with the mounting hole (202); the outer peripheral wall of the rotating portion (322) has the positioning groove (3221); and the toggle member (323) is located outside the mounting hole (202).

9. The bottle clamping mechanism according to claim 8, characterized in that: The bottle clamping mechanism further comprises an axle seat (7) and a clamp driving assembly, wherein the axle seat (7) is rotatably sleeved outside the rotating shaft (1), and the clamp driving assembly is fixed to the axle seat (7) and is used to drive the toggle portion (323) to rotate.

10. A filling device, characterized in that: It comprises a bottle supporting mechanism and a bottle clamping mechanism according to any one of claims 1 to 9, wherein the bottle supporting mechanism is used to support a bottle (100), and the bottle clamping mechanism is used to clamp the bottleneck of the bottle (100) conveyed by the bottle supporting mechanism.

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