Variable-pitch pickup mechanism

Abstract

The utility model relates to a variable-pitch pickup mechanism. The device can comprise a suction module, an adjustable support and a stand column. The suction module comprises a first suction nozzle and a second suction nozzle, and the first suction nozzle and the second suction nozzle are used for sucking a target object; the adjustable bracket comprises a first adjustable bracket and a second adjustable bracket; the first suction nozzle is arranged on the first adjustable support, and the second suction nozzle is arranged on the second adjustable support. The first adjustable support and the second adjustable support are movably connected with the stand column. According to the technical scheme provided by the utility model, the suction device can adapt to various suction objects with different sizes so as to meet the production requirements of different products, meanwhile, the production cost, the operation difficulty and the loading and unloading complexity can be reduced, and the production efficiency and the loading and unloading efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic equipment technical field especially, relates to a variable distance pickup mechanism. BACKGROUND

[0002] In the loading and unloading process of narrow frame product, two vacuum nozzles are needed to suck the surface of narrow frame product, so as to realize accurate pickup of the product. However, the distance between the vacuum nozzles in the current pickup mechanism is fixed and cannot be adjusted. Since the narrow frame product has the characteristics of long and narrow, and the position available for suction is not fixed, it is necessary to constantly replace the vacuum nozzles with corresponding distance, which not only increases the production cost, but also brings complexity and difficulty in replacing the variable distance pickup mechanism, and reduces the production efficiency. SUMMARY

[0003] The utility model provides a variable distance pickup mechanism to at least solve the problems such as how to accurately adjust the distance between the first suction nozzle and the second suction nozzle in the related art. The technical scheme of the utility model is as follows:

[0004] According to the first aspect of the utility model embodiment, a variable distance pickup mechanism is provided, which comprises a suction module, an adjustable support and a column;

[0005] The suction module comprises a first suction nozzle and a second suction nozzle, and the first suction nozzle and the second suction nozzle are used for sucking target objects; the adjustable support comprises a first adjustable support and a second adjustable support; the first suction nozzle is arranged on the first adjustable support, and the second suction nozzle is arranged on the second adjustable support; the first adjustable support and the second adjustable support are respectively connected with the column in a movable manner.

[0006] In a possible implementation manner, the variable distance pickup mechanism further comprises a screw assembly; the screw assembly comprises at least two first screws and at least two second screws;

[0007] A first threaded hole is formed on one side of the column, and a second threaded hole is formed on the other side of the column; the first threaded hole is adapted to the thread of the first screw; the second threaded hole is adapted to the thread of the second screw.

[0008] In a possible implementation manner, the first adjustable support is provided with a first waist-shaped hole, and the second adjustable support is provided with a second waist-shaped hole; the first screw is threadedly connected with the first threaded hole through the first waist-shaped hole; the second screw is threadedly connected with the second threaded hole through the second waist-shaped hole.

[0009] In one possible implementation, the variable-distance pickup mechanism further includes a connecting rod, which comprises at least two first connecting rods and at least two second connecting rods;

[0010] At least two connecting holes are provided on both the first adjustable bracket and the second adjustable bracket along their axial directions, and the size of the connecting rod is adapted to the connecting holes.

[0011] In one possible implementation, the column is provided with at least two first connecting parts and at least two second connecting parts, the first connecting rod passes through the connecting hole and engages with the first connecting part, and the second connecting rod passes through the second connecting hole and engages with the second connecting part.

[0012] In one possible implementation, a first slide rail is provided on one side of the column, and a second slide rail is provided on the other side of the column; the first adjustable bracket is configured as a first slider, and the second adjustable bracket is configured as a second slider.

[0013] The first slide rail and the first slider are adapted to each other, and the second slide rail and the second slider are adapted to each other; the first slide rail and the first slider are slidably connected; the second slide rail and the second slider are slidably connected.

[0014] In one possible implementation, the first slider is provided with a first locking structure, and the second slider is provided with a second locking structure. The first locking structure is used to lock the position of the first slider on the first slide rail, and the second locking structure is used to lock the position of the second slider on the second slide rail.

[0015] In one possible implementation, the first adjustable bracket has a first vent hole at the end away from the column, and the second adjustable bracket has a second vent hole at the end away from the column; one end of the first vent hole is connected to a first air pipe connector, and the other end of the first vent hole is connected to the first suction nozzle; one end of the second vent hole is connected to a second air pipe connector, and the other end of the second vent hole is connected to the second suction nozzle.

[0016] In one possible implementation, the variable-distance pickup mechanism further includes a first air tube, a second air tube, and an air intake device; a third vent is provided on the column, and a sealing ring is provided at the top of the third vent; the air intake device is sealed to the third vent through the sealing ring; one end of the first air tube is connected to one side of the third vent, and the other end of the first air tube is connected to the first air tube connector; one end of the second air tube is connected to the other side of the third vent, and the other end of the second air tube is connected to the second air tube connector.

[0017] In one possible implementation, the variable-distance pickup mechanism further includes a gas sensor, which is connected to the first vent, the second vent, and the third vent, respectively.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the present invention.

[0019] The technical solutions provided by the embodiments of this utility model bring at least the following beneficial effects:

[0020] By using the first and second suction nozzles to pick up the target object, the stability and reliability of the suction can be improved, and the target object can be prevented from falling during the suction process.

[0021] The first and second adjustable brackets are movably connected to the column, allowing for flexible adjustment of the distance between the nozzles according to the size of the target object. This adapts to various sizes of objects to meet different product production needs. It also avoids frequent replacement of nozzles with different spacing, reducing production costs. The adjustable brackets move and are fixed on the column, allowing for quick adjustment of the nozzle spacing, reducing operational difficulty and complexity, and improving assembly and production efficiency.

[0022] Other features and aspects of the present invention will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions and advantages in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural diagram of a variable-distance pickup mechanism according to an exemplary embodiment.

[0025] Figure 2 This is a top view of a target object according to an exemplary embodiment.

[0026] Figure 3 This is a structural diagram of an adjustable bracket according to an exemplary embodiment.

[0027] Figure 4 This is a structural diagram of a column according to an exemplary embodiment.

[0028] In the diagram, 1-first suction nozzle, 2-first adjustable bracket, 3-first air tube connector, 4-first air tube, 5-post, 6-third air tube connector, 7-first screw, 8-second suction nozzle, 9-second adjustable bracket, 10-second air tube connector, 11-second air tube, 12-hole, 13-fourth air tube connector, 14-fixing block, 15-first suction point, 16-second suction point, 17-third vent, 18-first vent, 19-second vent, 20-first waist-shaped hole, 21-second waist-shaped hole. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in the specification, and not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0031] Various exemplary embodiments, features, and aspects of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0032] The term "exemplary" as used herein means "serving as an example, embodiment, or illustration." Any embodiment illustrated herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships may exist, for example, A and / or B, which can represent: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more of a plurality, for example, including at least one of A, B, and C, which can represent including any one or more elements selected from the set consisting of A, B, and C.

[0033] Furthermore, to better illustrate this utility model, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this utility model can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this utility model.

[0034] It should be noted that the following diagram shows one possible sequence of steps, and it is not strictly required to follow this order. Some steps can be performed in parallel without interdependence. The user information (including but not limited to user device information, user personal information, user behavior information, etc.) and data (including but not limited to data used for display, training data, etc.) involved in this utility model are all information and data authorized by the user or fully authorized by all parties.

[0035] A pickup mechanism is a mechanical structure used in automated equipment or robots to grasp products or objects. Through precise operation, pickup mechanisms can significantly improve production efficiency, reduce labor costs, and ensure operational accuracy and consistency. Pickup mechanisms can be of several types, including vacuum pickup mechanisms, mechanical pickup mechanisms, pneumatic pickup mechanisms, and turbine pickup-tilting mechanisms. The variable-distance pickup mechanism in this invention is primarily used for picking up narrow-bezel products. Narrow-bezel products typically refer to products with narrow bezels, high screen-to-body ratios, and large display areas, such as smartphones, tablets, laptops, and monitors; this invention does not limit the scope to these. Preferably, this invention uses a vacuum pickup mechanism to pick up narrow-bezel products.

[0036] Figure 1 This is a structural diagram illustrating a variable-distance pickup mechanism according to an exemplary embodiment. Figure 1 As shown, it includes an absorption module, an adjustable bracket, and a column 5.

[0037] The suction module may include a first suction nozzle 1 and a second suction nozzle 8, which combine to suction a target object.

[0038] The target object can refer to the narrow-bezel product being absorbed. The narrow-bezel product can have a width of less than 3 mm, a length of more than 100 mm, and a thickness of less than 1.5 mm; this utility model does not limit the dimensions in this regard.

[0039] Figure 2 This is a top view of a target object according to an exemplary embodiment. For example... Figure 2 As shown, the target object, i.e., the narrow-bezel product, has a length of 120 mm, a width of 2.24 mm, and a thickness of 1.3 mm. The target object has target suction points, corresponding to the positions for picking up the target object, namely the first suction point 15 and the second suction point 16. During the picking process of the variable-distance picking mechanism, the first suction point 15 corresponds to the first suction nozzle 1, and the second suction point 16 corresponds to the second suction nozzle 8. When adsorbing the target object, the first suction nozzle 1 picks up the first suction point 15, while the second suction nozzle 8 picks up the second suction point 16, thus enabling the variable-distance picking mechanism to stably and reliably pick up the target object.

[0040] Figure 3 This is a structural diagram illustrating an adjustable bracket according to an exemplary embodiment. For example... Figure 3 As shown, the adjustable support includes a first adjustable support 2 and a second adjustable support 9. A first suction nozzle 1 is disposed on the first adjustable support 2, and a second suction nozzle 8 is disposed on the second adjustable support 9. A first vent 18 may be provided at the end of the first adjustable support 2 away from the column 5, and a second vent 19 may be provided at the end of the second adjustable support 9 away from the column 5. One end of the first vent 18 is sealed to the first air pipe connector 3, and the other end of the first vent 18, i.e., the end used to suction the target object, is sealed to the first suction nozzle 1. Correspondingly, one end of the second vent 19 is sealed to the second air pipe connector 10, and the other end of the second vent 19, i.e., the end used to suction the target object, is sealed to the second suction nozzle 8.

[0041] The variable-distance pickup mechanism also includes a first air tube 4, a second air tube 11, and a suction device. The suction device is a key component for generating a vacuum or negative pressure. By evacuating air, the pressure inside the air tube is reduced, thereby enabling the variable-distance pickup mechanism to stably adsorb the target object. The suction device can refer to a miniature vacuum pump, a vacuum generator, or other types of suction devices, and this utility model does not limit it to these.

[0042] Figure 4 This is a structural diagram of a column according to an exemplary embodiment. For example... Figure 4As shown, a third vent 17 is provided on the column 5. The third vent 17 can be configured as a three-pronged structure, that is, it has three ports, and all three ports are connected. This utility model does not limit this. A sealing ring is provided on the top port of the third vent 17. The air suction device is sealed to the top port of the third vent 17 through the sealing ring. After the air suction device is connected to the top of the third vent 17, the fixing block 14 and the column 5 are immediately fixedly connected with screws, thereby improving the stability and reliability of the connection between the air blowing device and the third vent 17. One end of the first air pipe 4 is connected to one side of the third vent 17. Specifically, a third air pipe connector 6 is provided on one side port of the third air pipe. One end of the first air pipe 4 is sealed to the third air pipe connector 6, thereby sealing the first air pipe 4 to one side of the third vent 17. The other end of the first air pipe 4 is connected to the first air pipe connector 3.

[0043] One end of the second air tube 11 is connected to the other side of the third vent 17. Specifically, a fourth air tube connector 13 is provided on the other side of the third vent tube, and one end of the second air tube 11 is sealed to the fourth air tube connector 13, thereby sealing the first air tube 4 to the other side of the third vent 17. The other end of the second air tube 11 is connected to the second air tube connector 10. This arrangement allows the suction device to simultaneously perform vacuum suction on both nozzles, namely the first nozzle 1 and the second nozzle 8, effectively distributing the negative pressure generated by the suction device to the first nozzle 1 and the second nozzle 8. In this way, both nozzles can simultaneously obtain sufficient suction to pick up the same target object.

[0044] In one possible implementation, the variable-distance pickup mechanism further includes a gas sensor connected to the first vent 18, the second vent 19, and the third vent 17, respectively. This gas sensor monitors the air pressure or vacuum level within the vents in real time, ensuring that the suction device provides stable and sufficient suction to the first nozzle 1 and the second nozzle 8. The gas sensor also monitors the first air connector 3, the second air connector 10, and the third air connector 6 in real time to prevent leaks or aging of the air connectors, which could prevent the pickup mechanism from picking up the target object, i.e., the narrow-bezel product.

[0045] In one possible implementation, the first adjustable bracket 2 and the second adjustable bracket 9 are movably connected to the column 5, respectively.

[0046] For example, the first adjustable bracket 2 and the second adjustable bracket 9 can be movably connected to the column 5 by threaded connections. Specifically, the variable-pitch pickup mechanism further includes a screw assembly; the screw assembly includes at least one first screw 7 and at least one second screw, with at least two first threaded holes on one side of the column 5 and at least two second threaded holes on the other side. The number of first screws 7 corresponds to the number of first threaded holes, and the number of second screws and second threaded holes corresponds to the number of second screws. The threads of the first screws 7 are adapted to the first threaded holes, and the threads of the second screws are adapted to the second threaded holes.

[0047] The first adjustable bracket 2 has a first oblong hole 20, and the second adjustable bracket 9 has a second oblong hole 21. The first screw 7 includes a first screw body and a first nut, and the second screw includes a second screw body and a second nut. The diameter of the first nut is larger than the width of the first oblong hole 20, and correspondingly, the diameter of the second nut is larger than the width of the second oblong hole 21. This arrangement can limit the movement of the first adjustable bracket 2 and the second adjustable bracket 9 to ensure the stability of the first adjustable bracket 2 and the second adjustable bracket 9 on the column 5.

[0048] The first screw 7 can pass through the first oblong hole 20 and be threaded into the first threaded hole, and the second screw can pass through the second oblong hole 21 and be threaded into the second threaded hole. When adjusting the distance between the first suction nozzle 1 and the second suction nozzle 8, the first screw 7 and the second screw can be loosened. Then, the first adjustable bracket 2 can be adjusted within the length range of the first oblong hole 20, and correspondingly, the second adjustable bracket 9 can also be adjusted within the length range of the second oblong hole 21. After determining the distance between the first suction nozzle 1 and the second suction nozzle 8—specifically, the distance between the first suction nozzle 1 and the second suction nozzle 8 is equal to the distance between the first suction point 15 and the second suction point 16 of the target object—the first screw 7 is then rotated to fix the first adjustable bracket 2 onto the column 5, while the second screw fixes the second adjustable bracket 9 onto the column 5. This arrangement allows for convenient direct adjustment of the position of the adjustable brackets without disassembling the first screw 7 and the second screw, improving the flexibility and convenience of the variable-distance pickup mechanism, as well as its disassembly and production efficiency.

[0049] In another embodiment, the first adjustable bracket 2 and the second adjustable bracket 9 are movably connected to the column 5 by a snap-fit ​​connection. The variable-distance pickup mechanism may also include multiple identical connecting rods, comprising at least two first connecting rods and at least two second connecting rods. Multiple connecting holes can be provided on both the axial direction of the first adjustable bracket 2 and the axial direction of the second adjustable bracket 9. For example, based on the distance between the first pickup point 15 and the second pickup point 16 of various target objects, i.e., the spacing between the target pickup points of various narrow-bezel products, multiple connecting holes are correspondingly provided on the first adjustable bracket 2 and the second adjustable bracket 9, and the size and shape of the connecting rods are adapted to the connecting holes.

[0050] The column 5 may have a first connecting part corresponding to the first connecting rod and a second connecting part corresponding to the second connecting rod. The connecting hole can be configured to fit the first connecting part and the second connecting part. After the variable distance pickup mechanism determines the pickup position of the target object, the connecting hole on the first adjustable bracket 2 is aligned with the first connecting part, and then the first connecting rod passes through the connecting hole on the first adjustable bracket 2 and engages with the first connecting part. Correspondingly, the connecting hole on the second adjustable bracket 9 is aligned with the second connecting part, and then the second connecting rod passes through the connecting hole on the second adjustable bracket 9 and engages with the first connecting part.

[0051] For example, the first connecting rod and the second connecting rod can be configured as threaded rods, and the first connecting part and the second connecting part on the column 5 can also be configured as threaded holes. The first connecting rod passes through the connecting hole and is threadedly connected to the first connecting part; correspondingly, the second connecting rod passes through the connecting hole and is threadedly connected to the second connecting part.

[0052] The first and second connecting parts on the column 5 can also be configured with locking mechanisms such as snap-fit ​​structures. By rotating or pressing, the first connecting rod can be snapped onto the snap-fit ​​structure of the first connecting part, and the second connecting rod can be snapped onto the snap-fit ​​structure of the second connecting part. This securely locks both the first adjustable bracket 2 and the second adjustable bracket 9 onto the column 5, maintaining the stability and reliability of the connection when the variable-distance pickup mechanism picks up the target object, i.e., a narrow-frame product. When it is necessary to adjust the distance between the first suction nozzle 1 and the second suction nozzle 8, the mechanism can be rotated in the opposite direction to release the snap-fit ​​structure and adjust the spacing of the adjustable brackets. This reduces assembly time and improves assembly and production efficiency. This invention does not limit the snap-fit ​​connection method.

[0053] In one possible implementation, the first adjustable bracket 2 and the second adjustable bracket 9 can be movably connected to the column 5 via a sliding connection. Specifically, a first slide rail is provided on one side of the column 5, and a second slide rail is provided on the other side of the column 5. The first and second slide rails can be straight, curved, or other shapes, and this invention does not limit their configuration. Preferably, both the first and second slide rails are straight slide rails.

[0054] The first adjustable bracket 2 can be configured as a first slider, and the second adjustable bracket 9 can be configured as a second slider. The first slider and the first slide rail are matched in shape and size, and the second slider and the second slide rail are matched in shape and size, that is, to ensure that the first slider can fit tightly against the first slide rail and ensure that the first slider slides smoothly on the first slide rail; correspondingly, to ensure that the second slider can fit tightly against the second slide rail and ensure that the second slider slides smoothly on the second slide rail.

[0055] Both the first and second sliders are equipped with rolling bearings, sliding bearings, or other friction-reducing components; this invention does not limit the specific components. This allows the sliders to slide stably on the slide rail. Furthermore, the spacing of the adjustable brackets can be adjusted on the column 5 by sliding the sliders and slide rails, thereby accurately determining the positional relationship between the first suction nozzle 1 and the second suction nozzle 8.

[0056] The first slider is provided with a first locking structure, and the second slider is provided with a second locking structure. The locking structure can be of many types, including mechanical locking devices. For example, screws or nuts can be used for locking. After determining the corresponding target suction point of the target object, the slider is pressed onto the slide rail by tightening the screws or nuts, using friction or direct contact to fix the slider. If it is necessary to adjust the target suction point on the target object, the screws or nuts can be loosened, thereby adjusting the position of the slider on the slide rail to determine the distance between the first suction nozzle 1 and the second suction nozzle 8.

[0057] Alternatively, a retaining ring or buckle can be used for locking, i.e., a retaining ring made of spring steel or a plastic buckle is inserted into the groove between the slider and the slide rail to achieve locking. Specifically, corresponding grooves are provided between the first slide rail and the first slider, and between the second slide rail and the second slider. The retaining ring or buckle is inserted into the corresponding groove between the first slide rail and the second slider, and between the second slide rail and the second slider, thereby fixing the slide rail and the slider together. This utility model does not limit the first locking structure and the second locking structure; they can be determined according to the actual situation.

[0058] The variable-pitch pickup mechanism can also be configured with other variable-pitch structures, such as adjusting the angle of the adjustable bracket to adjust the distance between the first suction nozzle 1 and the second suction nozzle 8; it can also be configured with an electric drive structure, such as setting a corresponding drive motor on the adjustable bracket to adjust the spacing of the adjustable bracket. This utility model does not limit the variable-pitch structure, and the specific structure can be determined according to the actual situation.

[0059] The column 5 is also provided with multiple holes 12, which can effectively remove some material, thereby reducing the overall weight of the column 5. This can reduce production costs and improve the flexibility and stability of the variable distance picking mechanism.

[0060] The variable-distance pickup mechanism of this invention can be mounted on a robotic arm, which is equipped with a corresponding position sensor. The position sensor is used to detect the target object, i.e., the pickup position of the narrow-bezel product, specifically the first pickup point 15 and the second pickup point 16, in real time. After correctly detecting the first and second pickup points 15 and 16 of the target object, the robotic arm accurately moves the variable-distance pickup mechanism above the narrow-bezel product, thereby aligning the first nozzle 1 on the variable-distance pickup mechanism with the first pickup point 15 of the target object, and the second nozzle 8 with the second pickup point 16 of the target object, thus improving the pickup efficiency of the variable-distance pickup mechanism.

[0061] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0062] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A variable-distance pickup mechanism, characterized in that, Includes suction module, adjustable bracket and column; The suction module includes a first suction nozzle and a second suction nozzle, which are used to suction the target object; The adjustable bracket includes a first adjustable bracket and a second adjustable bracket; the first suction nozzle is disposed on the first adjustable bracket, and the second suction nozzle is disposed on the second adjustable bracket; The first adjustable bracket and the second adjustable bracket are respectively movably connected to the column.

2. The variable-distance pickup mechanism according to claim 1, characterized in that, The variable-distance pickup mechanism further includes a screw assembly; the screw assembly includes at least two first screws and at least two second screws; A first threaded hole is provided on one side of the column, and a second threaded hole is provided on the other side of the column; the first threaded hole is adapted to the thread of the first screw; the second threaded hole is adapted to the thread of the second screw.

3. The variable-distance pickup mechanism according to claim 2, characterized in that, The first adjustable bracket has a first oblong hole, and the second adjustable bracket has a second oblong hole; The first screw passes through the first oblong hole and is threaded into the first threaded hole; the second screw passes through the second oblong hole and is threaded into the second threaded hole.

4. The variable-distance pickup mechanism according to claim 1, characterized in that, The variable-distance pickup mechanism further includes connecting rods, which include at least two first connecting rods and at least two second connecting rods; At least two connecting holes are provided on both the first adjustable bracket and the second adjustable bracket along their axial directions, and the size of the connecting rod is adapted to the connecting holes.

5. The variable-distance pickup mechanism according to claim 4, characterized in that, The column is provided with at least two first connecting parts and at least two second connecting parts. The first connecting rod passes through the connecting hole and engages with the first connecting part, and the second connecting rod passes through the second connecting part and engages with the second connecting part.

6. The variable-distance pickup mechanism according to claim 1, characterized in that, A first slide rail is provided on one side of the column, and a second slide rail is provided on the other side of the column; the first adjustable bracket is configured as a first slider, and the second adjustable bracket is configured as a second slider; The first slide rail and the first slider are adapted to each other, and the second slide rail and the second slider are adapted to each other; the first slide rail and the first slider are slidably connected; the second slide rail and the second slider are slidably connected.

7. The variable-distance pickup mechanism according to claim 6, characterized in that, The first slider is provided with a first locking structure, and the second slider is provided with a second locking structure. The first locking structure is used to lock the position of the first slider on the first slide rail, and the second locking structure is used to lock the position of the second slider on the second slide rail.

8. The variable-distance pickup mechanism according to claim 1, characterized in that, The first adjustable bracket has a first vent hole at the end away from the column, and the second adjustable bracket has a second vent hole at the end away from the column. One end of the first vent is connected to the first air pipe connector, and the other end of the first vent is connected to the first suction nozzle. One end of the second vent is connected to the second air pipe connector, and the other end of the second vent is connected to the second suction nozzle.

9. The variable-distance pickup mechanism according to claim 8, characterized in that, The variable distance pickup mechanism also includes a first air tube, a second air tube, and an air intake device; The column is provided with a third vent hole, and a sealing ring is provided at the top of the third vent hole. The air intake device is sealed to the third vent hole through the sealing ring. One end of the first trachea is connected to one side of the third vent, and the other end of the first trachea is connected to the first trachea connector; one end of the second trachea is connected to the other side of the third vent, and the other end of the second trachea is connected to the second trachea connector.

10. The variable-distance pickup mechanism according to claim 9, characterized in that, The variable distance pickup mechanism also includes a gas sensor, which is connected to the first vent, the second vent, and the third vent, respectively.

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