Cover opening and closing device for straw

Abstract

The utility model discloses a straw cover opening and closing device which comprises a gripper mechanism and a straw carrying and clamping mechanism. The straw carrying clamping mechanism supports the straw, the gripper mechanism can ascend and descend to abut against the straw carrying clamping mechanism, meanwhile, the straw carrying clamping mechanism clamps the straw, and the gripper mechanism can conduct cover opening and closing operation on the straw on the straw carrying clamping mechanism. The straw cover opening and closing device has the advantages that cover opening and closing are achieved through forward and reverse rotation of the driving part, the lifting driving assembly drives the gripper assembly to descend to be close to the straw, the driving part drives the clamping sleeve to clamp the straw cover, then the cover is unscrewed, the lifting driving assembly drives the gripper assembly to ascend, cover opening is completed, and otherwise, the cover is closed; the sliding guide rail reserves a floating space, is located at the bottom of the sliding guide rail under the influence of the self weight of the gripper assembly in the initial state, and floats upwards along the sliding guide rail under the pressure from the straw after the positioning clamping piece descends to make contact with the straw, so that the straw is prevented from being damaged by the pressure of the positioning clamping piece.

Description

Technical Field

[0001] This utility model relates to the field of sample storage technology, and in particular to a straw opening and closing device. Background Technology

[0002] In the field of biological samples, sample tubes are the most common sample containers. When using samples in experimental research, the samples need to be taken out of the sample tubes. Since biological samples need to be preserved at low temperatures, the sample tubes are often kept at low temperatures. The low temperature of the sample tubes makes it impossible to open them by manually twisting the cap. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above or prior art, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a straw opening and closing device that can open or close the straw / sample tube without manual closing.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a straw opening and closing device, which includes a gripping mechanism and a straw clamping mechanism; the straw clamping mechanism supports the straw, the gripping mechanism can be raised and lowered to abut against the straw clamping mechanism, and at the same time the straw clamping mechanism clamps the straw, and the gripping mechanism can perform opening and closing operation on the straw on the straw clamping mechanism.

[0007] In a preferred embodiment of the straw opening and closing device of this utility model, the gripping mechanism includes a lifting drive assembly and a gripping assembly; the gripping assembly is mounted on the lifting drive assembly, which can drive the gripping assembly to lift and lower, and the gripping assembly can clamp and rotate the straw cover on the straw clamping mechanism.

[0008] In a preferred embodiment of the straw opening and closing device of this utility model, the gripper assembly includes a driving component, a rotating component, and a positioning clamping component; the driving component is connected to the rotating component, and the positioning clamping component is disposed on the rotating component; the positioning clamping component can position and clamp the straw cover, the rotating component can drive the positioning clamping component to rotate, and the driving component can drive the rotating component and the positioning clamping component.

[0009] As a preferred embodiment of the straw opening and closing device of this utility model, the positioning clamping component includes a clamping guide rail, a clamping sleeve, a positioning block, and a positioning hole; the positioning clamping component is provided with at least two sets of clamping sleeves, which clamp or release the straw cover when the positioning clamping component moves towards or away from each other; the clamping guide rail is provided with a positioning block, and the positioning block is provided with a positioning hole, which can position the straw cover.

[0010] In a preferred embodiment of the straw opening and closing device of this utility model, the gripper assembly further includes a buffer connector; the driving component is connected to the lifting driving component through the buffer connector, and the buffer connector can buffer the positioning clamp when it contacts the straw.

[0011] In a preferred embodiment of the straw opening and closing device of this utility model, the buffer connector includes a sliding guide rail and a slider; the sliding guide rail is mounted on the lifting drive assembly, the slider can slide on the sliding guide rail, and one side of the slider is connected to the drive assembly.

[0012] In a preferred embodiment of the straw opening and closing cover device of this utility model, the lifting drive assembly includes a lifting drive component, a driven component, and a support block; the lifting drive component drives the driven component to rotate, the support block is disposed on the driven component, the support block can move up and down on the driven component, and the support block can drive the gripper assembly to move up and down.

[0013] As a preferred embodiment of the straw opening and closing device of this utility model, the straw clamping mechanism includes a straw holder assembly and a support rod assembly; the straw holder assembly can hold the straw, and the gripper mechanism can clamp the straw in the straw holder assembly through the support rod assembly, which is mounted on the straw holder assembly.

[0014] In a preferred embodiment of the straw opening and closing device of this utility model, the straw carrier assembly includes an outer carrier, an inner carrier, and an elastic connector; the outer and inner carriers can store straws, and the elastic connectors are provided in the outer and inner carriers, allowing the outer carrier to be moved away from the inner carrier through the elastic connectors.

[0015] In a preferred embodiment of the wheat straw opening and closing cover device of this utility model, the elastic connecting member includes a connecting rod and a bearing; an elastic element is provided inside the connecting rod, the connecting rod can drive the outer carrier to move, the bearing is provided at one end of the connecting rod and on one side of the support rod assembly, and the support rod assembly can drive the connecting rod and the outer carrier to clamp the wheat straw.

[0016] In a preferred embodiment of the straw opening and closing device of this utility model, the support rod assembly includes a buffer block and a limiting rod. The buffer block is mounted on the gripper mechanism, and the limiting rod is mounted on the straw carrier assembly. The limiting rod can limit the buffer block, and under the contact of the buffer block, the limiting rod can push the elastic connector and the outer carrier to clamp the straw.

[0017] In a preferred embodiment of the straw opening and closing device of this utility model, the limiting rod includes a limiting rod body, a limiting top block is provided at the upper end of the limiting rod body and the limiting top block is located above the inner carrier, a limiting bottom block is provided at the lower end of the limiting rod body and the limiting bottom block is located below the inner carrier, a vertical rod is provided between the limiting top block and the limiting bottom block, and a supporting inclined surface is provided at the lower end of the vertical rod near the limiting bottom block. The supporting inclined surface has a certain slope and can compress and limit the elastic connecting member.

[0018] As a preferred embodiment of the straw switch cover device of this utility model, the vertical rod can move vertically within the inner carrier, and the inner carrier and the limiting top block are provided with mounting holes. The limiting top block is provided with a spring-loaded component, which can drive the limiting rod body to return to the initial position upward.

[0019] As a preferred embodiment of the straw opening and closing device of this utility model, it further includes a control component, which is disposed on one side of the straw clamping mechanism and can control the gripper mechanism to open and close the cover.

[0020] The beneficial effects of this utility model are:

[0021] 1. The lid is opened and closed by the forward and reverse rotation of the drive component. The lifting drive component drives the gripper component to descend and approach the straw. The drive component drives the clamp to clamp the straw lid, and then the lid is opened by twisting. The lifting drive component drives the gripper component to rise to complete the opening of the lid. Conversely, the lid is closed by rotating the gripper component to open the lid.

[0022] 2. The tube holder assembly consists of inner and outer seats, which are linked with the gripper assembly to press down and rise. When the equipment is not started, a certain gap is left to facilitate the insertion of straws. When the equipment is started, the buffer block presses down the limit rod body, and the support slope at the tail end of the limit rod body contacts the bearing. As the support slope on the limit rod body presses down on the bearing, it drives the connecting rod to move backward. The bearing is connected to the outer seat through the connecting rod and moves backward together, so that the outer seat is close to the inner seat and locks the straw, so as to complete the opening and closing operation of the cover. Then the gripper assembly rises, the spring pushes the limit rod body to rise, the support slope disengages from the bearing, and the bearing, connecting rod and outer seat return to their original positions. A gap appears between the outer seat and the inner seat, making it easy to remove the straw.

[0023] 3. The sliding guide rail has floating space. In the initial state, it is located at the bottom of the sliding guide rail due to the weight of the gripper assembly. After the positioning clamping part descends and contacts the straw, it will float upward along the sliding guide rail due to the pressure from the straw, preventing the pressure of the positioning clamping part from damaging the straw.

[0024] 4. The limiting rod and buffer block work together to prevent excessive downward pressure. After the gripper assembly descends to a certain extent, the buffer block connected to the lower end of the support block contacts the upper end of the limiting rod, pushing the limiting rod to descend. After the limiting rod descends a certain distance, it abuts against the inner carrier, thus limiting the descent height of the gripper assembly and ensuring safety. Attached Figure Description

[0025] 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. Among them:

[0026] Figure 1 This is a schematic diagram of the overall device for opening and closing the straw cover.

[0027] Figure 2 This is a schematic diagram of the gripper assembly of the straw opening and closing device.

[0028] Figure 3 This is a front view of the straw opening and closing device.

[0029] Figure 4 for Figure 3 A cross-sectional view of the AA section of the Zhongmai pipe switch cover device.

[0030] Figure 5 for Figure 4 Enlarged view of F1 of the Zhongmai tube switch cover device.

[0031] Figure 6 for Figure 4 Enlarged view of point F2 of the Zhongmai tube switch cover device.

[0032] Reference numerals: 1. Gripper mechanism; 2. Pipe clamping mechanism; 11. Lifting drive assembly; 12. Gripper assembly; 12. Drive component; 121. Rotating component; 122. Positioning and gripping component; 123. Clamping guide rail; 1231. Jacket; 1232. Positioning block; 1233. Positioning hole; 1234. Buffer connector; 124. Sliding guide rail; 1241. Slider; 1242. Lifting drive component; 111. Driven component; 112. Support Support block, 113; Carrier tube assembly, 21; Support rod assembly, 22; Outer carrier, 211; Inner carrier, 212; Elastic connector, 213; Connecting rod, 2131; Bearing, 2132; Buffer block, 221; Limiting rod, 222; Limiting rod body, 2221; Limiting top block, 2222; Limiting bottom block, 2223; Vertical rod, 2224; Supporting inclined surface, 2225; Mounting hole, 2226; Control assembly, 3; Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Example 1

[0037] Reference Figures 1-2 This is the first embodiment of the present invention. This embodiment provides a straw opening and closing device, which includes a gripper mechanism 1 and a straw clamping mechanism 2. By setting the gripper mechanism 1, the straw cover on the straw clamping mechanism 2 can be opened or closed. During the descent process, the gripper mechanism 1 will abut against the straw clamping mechanism 2, so that the straw clamping mechanism 2 clamps the straw.

[0038] Specifically, it includes a gripper mechanism 1 and a tube clamping mechanism 2; the tube clamping mechanism 2 supports the straw, the gripper mechanism 1 can be raised and lowered to resist the tube clamping mechanism 2, and at the same time the tube clamping mechanism 2 clamps the straw, the gripper mechanism 1 can open and close the cap on the straw on the tube clamping mechanism 2.

[0039] In summary, by lowering the gripper mechanism 1, it can come into contact with the pipe clamping mechanism 2, thereby clamping the straw on the pipe clamping mechanism 2. This makes it convenient for the gripper mechanism 1 to open or close the cap of the straw. As the gripper mechanism 1 rises away from the pipe clamping mechanism 2, the pipe clamping mechanism 2 automatically releases the straw, making it convenient to pick up and put away the straw on the pipe clamping mechanism 2. This device replaces manual labor and greatly improves work efficiency.

[0040] Example 2

[0041] Reference Figures 1-6This is the second embodiment of the present invention. In the previous embodiment, the straw opening and closing device includes a gripper mechanism 1 and a straw clamping mechanism 2. By setting the gripper mechanism 1, the straw cover on the straw clamping mechanism 2 can be opened or closed. During the descent process, the gripper mechanism 1 will abut against the straw clamping mechanism 2, so that the straw clamping mechanism 2 clamps the straw.

[0042] Specifically, it includes a gripper mechanism 1 and a tube clamping mechanism 2; the tube clamping mechanism 2 supports the straw, the gripper mechanism 1 can be raised and lowered to resist the tube clamping mechanism 2, and at the same time the tube clamping mechanism 2 clamps the straw, the gripper mechanism 1 can open and close the cap on the straw on the tube clamping mechanism 2.

[0043] Furthermore, the gripper mechanism 1 includes a lifting drive assembly 11 and a gripper assembly 12; the gripper assembly 12 is mounted on the lifting drive assembly 11, the lifting drive assembly 11 can drive the gripper assembly 12 to lift and lower, and the gripper assembly 12 can clamp and rotate the straw cap on the straw clamping mechanism 2.

[0044] Preferably, the gripper assembly 12 can clamp the cap of the straw, and then rotate the clamped cap to achieve the process of opening or closing the cap.

[0045] Furthermore, the gripper assembly 12 includes a drive member 121, a rotating member 122, and a positioning clamping member 123; the drive member 121 is connected to the rotating member 122, and the positioning clamping member 123 is disposed on the rotating member 122; the positioning clamping member 123 can position and clamp the straw cap, the rotating member 122 can drive the positioning clamping member 123 to rotate, and the drive member 121 can drive the rotating member 122 and the positioning clamping member 123.

[0046] Preferably, the driving component 121 can be a motor drive, or it can be a driving method in the prior art.

[0047] Preferably, the drive component 121 can drive the rotating component 122 to rotate, and can drive the positioning clamping component 123 to clamp the straw.

[0048] Preferably, the lower end face of the rotating member 122 is connected to the positioning clamping member 123, and the rotation of the rotating member 122 can drive the positioning clamping member 123 to rotate.

[0049] Furthermore, the positioning clamping component 123 includes a clamping guide rail 1231, a clamping sleeve 1232, a positioning block 1233, and a positioning hole 1234; at least two sets of clamping sleeves 1232 are provided on the positioning clamping component 123, and the two sets of clamping sleeves 1232 clamp or release the straw cap when the positioning clamping component 123 moves towards each other or away from each other; the clamping guide rail 1231 is provided with a positioning block 1233, and the positioning block 1233 is provided with a positioning hole 1234, which can position the straw cap.

[0050] Preferably, the two sets of clamps 1232 can slide towards the center of the clamping guide 1231, or slide away from the center, thereby achieving the clamping or releasing process.

[0051] Preferably, the clamping guide rail 1231 can support and guide the two sets of clamps 1232.

[0052] It should be noted that multiple sets of clamping guide rails 1231 can be provided, and correspondingly, clamps 1232 are provided on multiple sets of clamping guide rails 1231. The target object is clamped by multiple sets of clamps 1232, thereby adapting to products of different specifications and making it more applicable.

[0053] Ideally, the clips 1232 are semi-circular, but of course, they can also be set to the corresponding shape according to the needs of the product to facilitate easy clamping.

[0054] Preferably, the positioning block 1233 is positioned between the two sets of clamps 1232. The positioning hole 1234 on the positioning block 1233 is used to conveniently position the top of the straw, thereby facilitating clamping.

[0055] Furthermore, the gripper assembly 12 also includes a buffer connector 124; the drive unit 121 is connected to the lifting drive assembly 11 through the buffer connector 124, and the buffer connector 124 can provide cushioning when the positioning gripper 123 contacts the straw.

[0056] Preferably, the buffer connector 124 can serve as a connection, facilitating the lifting drive assembly 11 to drive the drive component 121, the rotating component 122, and the positioning clamping component 123 to lift and lower via the buffer connector 124.

[0057] Preferably, the buffer connector 124 also has an important function: when the positioning clamp 123 comes into contact with the straw of the straw clamping mechanism 2, the buffer connector 124 can buffer the positioning clamp 123 under the resistance of the straw, so as to avoid damage to the straw by the positioning clamp 123.

[0058] Furthermore, the buffer connector 124 includes a sliding guide rail 1241 and a slider 1242; the sliding guide rail 1241 is disposed on the lifting drive assembly 11, and the slider 1242 can slide on the sliding guide rail 1241, with one side of the slider 1242 connected to the drive assembly 121.

[0059] Preferably, the sliding guide rail 1241 moves up and down in tandem with the lifting drive assembly 11, and the bottom of the sliding guide rail 1241 can support the slider 1242.

[0060] Preferably, during use, the gripper assembly 12, under the action of gravity, will drive the slider 1242 to move to the bottom of the sliding guide rail 1241; when the lifting drive assembly 11 drives the sliding guide rail 1241, slider 1242, drive member 121, rotating member 122, and positioning clamping member 123 to descend, the positioning clamping member 123 plays a certain buffering role when it encounters the straw on the straw clamping mechanism 2, so that the drive member 121 can drive the slider 1242 to slide along the sliding guide rail 1241. The purpose of this is to avoid damage to the straw when the positioning clamping member 123 contacts the straw.

[0061] Preferably, the sliding guide rail 1241 has floating space. In the initial state, it is located at the bottom of the sliding guide rail 1241 due to the weight of the gripper assembly 12. After the positioning clamp 123 descends and contacts the straw, it will float upward along the sliding guide rail 1241 due to the pressure from the straw, thus preventing the pressure of the positioning clamp 123 from damaging the straw.

[0062] Furthermore, the lifting drive assembly 11 includes a lifting drive component 111, a driven component 112, and a support block 113; the lifting drive component 111 drives the driven component 112 to rotate, the support block 113 is disposed on the driven component 112, the support block 113 can move up and down on the driven component 112, and the support block 113 can drive the gripper assembly 12 to move up and down.

[0063] Preferably, the lifting drive component 111 can be driven by a motor or by any existing driving method; the driven component 112 is a lead screw, but it can also be other structures, as long as it can drive the support block 113 to lift.

[0064] Preferably, the support block 113 is engaged with the lead screw, the bracket housing limits the support block 113 to ensure that the support block 113 can only move vertically, and the support block 113 is fixedly connected to the sliding guide rail 1241 and the buffer block 221.

[0065] Furthermore, the tube clamping mechanism 2 includes a tube holder assembly 21 and a strut assembly 22; the tube holder assembly 21 can hold wheat straws, and the gripper mechanism 1 can clamp the wheat straws in the tube holder assembly 21 through the strut assembly 22, which is mounted on the tube holder assembly 21.

[0066] Preferably, when the strut assembly 22 is resisted by the buffer block 221, the strut assembly 22 will clamp the straw on the tube carrier assembly 21.

[0067] Preferably, when the buffer block 221 rises with the gripper assembly 12, the buffer block 221 will disengage from the strut assembly 22, thereby canceling the work done by the strut assembly 22 on the tube clamping mechanism 2, and the tube holder assembly 21 will loosen the cap, making it convenient to put in and take out the tubes in the tube holder assembly 21.

[0068] Furthermore, the tube carrier assembly 21 includes an outer carrier 211, an inner carrier 212, and an elastic connector 213; the outer carrier 211 and the inner carrier 212 can store wheat tubes, and the elastic connector 213 is provided in the outer carrier 211 and the inner carrier 212, so that the outer carrier 211 can be moved away from the inner carrier 212 through the elastic connector 213.

[0069] Preferably, in the initial state, the gripper assembly 12 moves the buffer block 221 away from the strut assembly 22. At this time, the elastic connector 213 will move the outer carrier 211 away from the inner carrier 212, leaving a gap between the outer carrier 211 and the inner carrier 212, which facilitates the picking and putting of the straw.

[0070] Furthermore, the elastic connector 213 includes a connecting rod 2131 and a bearing 2132; the connecting rod 2131 is provided with an elastic element, and the connecting rod 2131 can drive the outer carrier 211 to move; the bearing 2132 is provided at one end of the connecting rod 2131 and on one side of the support rod assembly 22, and the support rod assembly 22 can drive the connecting rod 2131 and the outer carrier 211 to clamp the straw.

[0071] Preferably, by providing an elastic element, such as a spring, in the connecting rod 2131, the outer carrier 211 can be moved away from the inner carrier 212 without external force intervention.

[0072] Furthermore, the strut assembly 22 includes a buffer block 221 and a limiting rod 222. The buffer block 221 is mounted on the gripper mechanism 1, and the limiting rod 222 is mounted on the pipe carrier assembly 21. The limiting rod 222 can limit the buffer block 221. Under the resistance of the buffer block 221, the limiting rod 222 can push the elastic connector 213 and the outer carrier 211 to clamp the straw.

[0073] Preferably, the buffer block 221 is fixedly connected to the support block 113, and the buffer block 221 is located below the drive component 121. The buffer block 221 moves up and down together with the gripper assembly 12.

[0074] Preferably, when the buffer block 221 comes into contact with the limiting rod 222 during descent, it will press the limiting rod 222 downward. The limiting rod 222, under force, will press the elastic connector 213, thereby pushing the elastic connector 213, and finally causing the outer carrier 211 to move towards the inner carrier 212, thus clamping the straw.

[0075] It should be noted that after the limiting rod 222 descends to a certain distance, it will limit the buffer block 221, thereby preventing the gripper assembly 12 from continuing to descend.

[0076] Furthermore, the limiting rod 222 includes a limiting rod body 2221. A limiting top block 2222 is provided at the upper end of the limiting rod body 2221 and is positioned above the inner carrier 212. A limiting bottom block 2223 is provided at the lower end of the limiting rod body 2221 and is positioned below the inner carrier 212. A vertical rod 2224 is provided between the limiting top block 2222 and the limiting bottom block 2223. A supporting inclined surface 2225 is provided at the lower end of the vertical rod 2224 near the limiting bottom block 2223. The supporting inclined surface 2225 has a certain slope and can compress and limit the elastic connector 213.

[0077] Preferably, when the vertical rod 2224 drives the supporting inclined surface 2225 to descend, it will push the bearing 2132 backward, thereby driving the connecting rod 2131 and the outer carrier 211 to move towards the inner carrier 212, thus clamping the straw.

[0078] Preferably, by setting a limiting top block 2222, the limiting top block 2222 can contact and limit the upper end surface of the inner carrier 212, thereby causing the limiting rod body 2221 to descend to the designated position. At this point, it has descended to the designated position and cannot descend further, thereby limiting and resisting the gripper assembly 12 and preventing it from descending further.

[0079] Furthermore, the vertical rod 2224 can move vertically within the inner carrier 212. The inner carrier 212 and the limiting top block 2222 are provided with mounting holes 2226. The limiting top block 2222 is provided with a spring-loaded component, which can drive the limiting rod body 2221 to return to the initial position.

[0080] Ideally, the rebound element can be a spring, but it can also be any other elastic structure.

[0081] Preferably, by setting a spring-loaded component, after the buffer block 221 is disengaged from the limiting rod body 2221, the spring-loaded component pushes the limiting rod body 2221 upward, causing the supporting inclined surface 2225 to disengage from the bearing 2132. Under the action of the connecting rod 2131, the outer carrier 211 automatically moves away from the inner carrier 212, making it convenient to pick up and put down the straw.

[0082] Preferably, by setting a limiting bottom block 2223, the spring-loaded component can be prevented from detaching the limiting rod body 2221 from the inner carrier 212.

[0083] Furthermore, it also includes a control component 3, which is located on one side of the tube clamping mechanism 2. The control component 3 can control the gripper mechanism 1 to open and close the cover.

[0084] In summary, this utility model achieves the opening and closing of the cap through the forward and reverse rotation of the drive component 121. The lifting drive assembly 11 drives the gripper assembly 12 to descend and approach the straw. The drive component 121 drives the clamp 1232 to clamp the straw cap, and then the cap is unscrewed to open it. The lifting drive assembly 11 drives the gripper assembly 12 to rise, completing the opening of the cap. Conversely, the reverse rotation closes the cap. The straw carrier assembly 21 is divided into inner and outer carriers, which are linked with the downward and upward movement of the gripper assembly 12. When the equipment is not started, a certain gap is left to facilitate the insertion of the straw. When the equipment is started... After activation, the buffer block 221 presses down the limit rod body 2221. The support slope 2225 at the tail end of the limit rod body 2221 contacts the bearing 2132. As the support slope 2225 on the limit rod body 2221 presses down on the bearing 2132, it drives the connecting rod 2131 to move backward. The bearing 2132 is connected to the outer carrier 211 through the connecting rod 2131, and they move backward together, so that the outer carrier 211 is close to the inner carrier 212, locking the straw to facilitate the opening and closing of the cover. Then the gripper assembly... When component 12 rises, the rebound component pushes the limit rod body 2221 to rise, the support inclined surface 2225 disengages from the bearing 2132, the bearing 2132, the connecting rod 2131 and the outer carrier 211 return to their original positions, and a gap appears between the outer carrier 211 and the inner carrier 212, making it easier to remove the straw; by leaving floating space in the sliding guide rail 1241, it is initially positioned at the bottom of the sliding guide rail 1241 due to the weight of the gripper assembly 12. After the positioning clamping component 123 descends and contacts the straw, it is subjected to the force of the straw. The pressure will float upward along the sliding guide rail 1241 to prevent the pressure of the positioning clamp 123 from damaging the straw; the limiting rod 222, together with the buffer block 221, prevents excessive downward pressure. After the gripper assembly 12 descends to a certain extent, the buffer block 221 connected to the lower end of the support block 113 contacts the upper end of the limiting rod 222, pushing the limiting rod 222 down. After the limiting rod 222 descends a certain distance, it abuts against the inner carrier 212, thus limiting the descent height of the gripper assembly 12 and ensuring safety.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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 straw opening and closing device, characterized in that: It includes a gripper mechanism (1) and a tube clamping mechanism (2); the tube clamping mechanism (2) supports the straw, the gripper mechanism (1) can move up and down to abut against the tube clamping mechanism (2), and at the same time the tube clamping mechanism (2) clamps the straw, the gripper mechanism (1) can open and close the cap on the straw on the tube clamping mechanism (2); The gripper mechanism (1) includes a lifting drive assembly (11) and a gripper assembly (12); the gripper assembly (12) is mounted on the lifting drive assembly (11), the lifting drive assembly (11) can drive the gripper assembly (12) to lift and lower, and the gripper assembly (12) can clamp and rotate the straw cap on the straw clamping mechanism (2); The gripper assembly (12) includes a drive member (121), a rotating member (122), and a positioning clamping member (123); the drive member (121) is connected to the rotating member (122), and the positioning clamping member (123) is disposed on the rotating member (122); the positioning clamping member (123) can position and clamp the straw cap, the rotating member (122) can drive the positioning clamping member (123) to rotate, and the drive member (121) can drive the rotating member (122) and the positioning clamping member (123); The tube clamping mechanism (2) includes a tube holder assembly (21) and a strut assembly (22); the tube holder assembly (21) can hold wheat straw, and the gripper mechanism (1) can clamp the wheat straw in the tube holder assembly (21) through the strut assembly (22). The strut assembly (22) is set on the tube holder assembly (21). The tube carrier assembly (21) includes an outer carrier (211), an inner carrier (212), and an elastic connector (213); the outer carrier (211) and the inner carrier (212) can store wheat tubes, and the outer carrier (211) and the inner carrier (212) are provided with elastic connectors (213), and the outer carrier (211) can be moved away from the inner carrier (212) through the elastic connectors (213).

2. The straw opening and closing device as described in claim 1, characterized in that: The positioning clamp (123) includes a clamping guide rail (1231), a sleeve (1232), a positioning block (1233), and a positioning hole (1234). At least two sets of sleeves (1232) are provided on the positioning clamp (123). The two sets of sleeves (1232) clamp or release the straw cap when the positioning clamp (123) moves towards each other or away from each other. The clamping guide rail (1231) is provided with a positioning block (1233), and the positioning block (1233) is provided with a positioning hole (1234). The positioning hole (1234) can position the straw cap.

3. The straw opening and closing device as described in claim 1, characterized in that: The gripper assembly (12) also includes a buffer connector (124); the drive unit (121) is connected to the lifting drive assembly (11) through the buffer connector (124), and the buffer connector (124) can buffer the positioning gripper (123) when it contacts the straw.

4. The straw opening and closing cover device as described in claim 3, characterized in that: The buffer connector (124) includes a sliding guide rail (1241) and a slider (1242); the sliding guide rail (1241) is disposed on the lifting drive assembly (11), the slider (1242) can slide on the sliding guide rail (1241), and one side of the slider (1242) is connected to the drive assembly (121).

5. The straw opening and closing device as described in claim 1, characterized in that: The lifting drive assembly (11) includes a lifting drive component (111), a driven component (112), and a support block (113); the lifting drive component (111) drives the driven component (112) to rotate, the support block (113) is disposed on the driven component (112), the support block (113) can move up and down on the driven component (112), and the support block (113) can drive the gripper assembly (12) to move up and down.

6. The straw opening and closing device as described in claim 1, characterized in that: The elastic connector (213) includes a connecting rod (2131) and a bearing (2132); the connecting rod (2131) is provided with an elastic element, the connecting rod (2131) can drive the outer carrier (211) to move, the bearing (2132) is provided at one end of the connecting rod (2131) and on one side of the support rod assembly (22), the support rod assembly (22) can drive the connecting rod (2131) and the outer carrier (211) to clamp the straw.

7. The straw opening and closing device as described in claim 1, characterized in that: The strut assembly (22) includes a buffer block (221) and a limiting rod (222). The buffer block (221) is mounted on the gripper mechanism (1), and the limiting rod (222) is mounted on the tube carrier assembly (21). The limiting rod (222) can limit the buffer block (221). Under the contact of the buffer block (221), the limiting rod (222) can push the elastic connector (213) and the outer carrier (211) to clamp the straw.

8. The straw opening and closing device as described in claim 7, characterized in that: The limiting rod (222) includes a limiting rod body (2221). The upper end of the limiting rod body (2221) is provided with a limiting top block (2222), which is located above the inner carrier (212). The lower end of the limiting rod body (2221) is provided with a limiting bottom block (2223), which is located below the inner carrier (212). A vertical rod (2224) is provided between the limiting top block (2222) and the limiting bottom block (2223). The lower end of the vertical rod (2224) is provided with a supporting inclined surface (2225) near the limiting bottom block (2223). The supporting inclined surface (2225) has a certain slope and can squeeze and limit the elastic connector (213).

9. The straw opening and closing device as described in claim 8, characterized in that: The vertical rod (2224) can move vertically within the inner carrier (212). The inner carrier (212) and the limiting top block (2222) are provided with mounting holes (2226). The limiting top block (2222) is provided with a spring-loaded component. The spring-loaded component can drive the limiting rod body (2221) to return to the initial position.

10. The straw opening and closing device as described in claim 1, characterized in that: It also includes a control component (3), which is located on one side of the tube clamping mechanism (2). The control component (3) can control the gripper mechanism (1) to open and close the cover.

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