A base for fixing a cup body

Abstract

The present invention relates to the field of experimental instruments, and provides a base for fixing a cup body, comprising: a supporting shell, comprising a first plate, a second plate and a side panel; a clamping assembly, comprising a slide rail, a slider, a support rod, and a cross-type variable diameter ring guard, the first plate comprising at least three grooves, the three grooves being radially evenly distributed on the first plate, the slide rail being arranged in the groove, the slider connecting the slide rail, one end of the support rod being fixed to the slider, and the other end being connected to the cross-type variable diameter ring guard, when the diameter of the cross-type variable diameter ring guard changes under the action of an external force, the support rod and the slider are driven to move on the slide rail; a suction cup assembly, comprising a soft suction cup, the soft suction cup being fixed on a side of the second plate away from the first plate; when the inner side of the cross-type variable diameter ring guard contacts the cup body, the support rod does not contact the cup body. The base for fixing the cup body of the present invention solves the technical problems of a single function and complex driving of the fixed base, and achieves the technical effect of a base with multiple functions and simple driving.

Description

Technical Field

[0001] The invention relates to the field of experimental instruments, and in particular to a base for fixing a cup body. Background Art

[0002] In chemical and biological experiments, beakers and measuring cylinders are essential experimental equipment. During the experiment, researchers may accidentally touch the beaker or measuring cylinder, causing it to tip over. On the one hand, this will cause liquid to flow out and waste materials. Most importantly, these liquids may cause harm to the human body. Therefore, there is a need to fix the beaker and measuring cylinder on the table during the experiment.

[0003] The existing beaker or measuring cylinder fixing device, if both can be fixed, will be the kind of shelf that occupies a relatively large desktop area, which obviously squeezes the experimental space; therefore, this kind of fixing device is generally separate, with a relatively simple function, and can only fix the beaker or the measuring cylinder. Because the diameter of the beaker is the same at the top and bottom, but the diameter of the bottom and the body of the measuring cylinder are different, and the measuring cylinder is thin and tall, and the center of gravity is higher, which makes it easier to tip over. Taking the beaker and measuring cylinder with a capacity of 5ml-1000ml as an example, the outer diameter of the beaker ranges from 20mm-105mm and the height ranges from 32mm-158mm, while the outer diameter of the measuring cylinder at the largest diameter ranges from 32mm-100mm, and the height range of the measuring cylinder is 115mm-430mm. If the clamping part can clamp the side wall of the beaker, but can only clamp the part with the largest diameter at the bottom of the measuring cylinder, then the beaker can be clamped, but the measuring cylinder may still tip over because there is a gap between the body and the clamping part.

[0004] In addition to the single function, the existing cup body fixing device has another disadvantage. If the fixing device is to be able to clamp cups of different specifications and be easy to use and move, the design of the driving and clamping components of the fixing device will be very complicated. For example, Chinese patent application CN201811618915.3 discloses a portable cup holder with an adjustment function, which uses a set of complex transmission rods, pressure rods, worms, worm gears, and clamps to clamp the outer wall of the water cup. This complex design will increase the manufacturing cost on the one hand, and increase the risk of failure due to too many transmission parts on the other hand.

[0005] Therefore, a multifunctional base which can fix both the beaker and the measuring cylinder and has a simple driving mode and is convenient to use is needed. Summary of the invention

[0006] The purpose of the present invention is to provide a base for fixing a cup body, so as to solve the technical problems existing in the prior art that the fixing base has a single function and is complex to drive.

[0007] The embodiment of the present invention provides a base for fixing a cup body, comprising: a supporting shell, the supporting shell comprising a first plate, a second plate and a side panel; a clamping assembly, the clamping assembly comprising a slide rail, a slider, a support rod, and a cross-type reducer, the first plate comprising at least three grooves, the three grooves being radially and evenly distributed on the first plate, the slide rail being arranged in the groove, the slider being connected to the slide rail, one end of the support rod being fixed to the slider, the other end of the support rod being connected to the cross-type reducer, and when the diameter of the cross-type reducer changes under the action of an external force, the support rod and the slider are driven to move on the slide rail; a suction cup assembly, the suction cup assembly comprising a soft suction cup, the soft suction cup being fixed to a side of the second plate away from the first plate; when the inner side of the cross-type reducer contacts the cup body, the support rod does not contact the cup body.

[0008] Furthermore, the cross-type variable diameter ring guard includes a plurality of ribs, a connecting shaft and a locking strip, through holes are arranged at both ends and the middle of the ribs, the plurality of ribs are cross-connected to each other in an X-shape to form a ring, the connecting shaft passes through the overlapping through holes to connect the ribs, a protrusion is arranged on the surface of the connecting shaft in the middle of any two adjacent X-shaped cross connections, and the locking strip is clamped on the protrusion.

[0009] Furthermore, a flexible contact portion is provided on a side of the connecting shaft close to the cup body.

[0010] Furthermore, the support rod includes a first horizontal section and a first vertical section, the end of the first horizontal section is connected to the cross-type reducer ring, and the end of the first vertical section is fixed to the slider; or the support rod is inclined relative to the first plate.

[0011] Furthermore, the soft suction cup includes an air outlet hole at the top, a pit is provided at the center of the first plate, a center hole is opened in the middle of the pit, and the suction cup assembly also includes a soft cover pad, a hard cover plate, a spring, a connecting part and a pull ring; the soft cover pad covers the air outlet hole, the hard cover plate is located above the soft cover pad, one end of the spring is against the hard cover plate, and the other end of the spring is against the inner side of the first plate; the connecting part passes through the spring and the center hole, one end is connected to the hard cover plate, and the other end is connected to the pull ring, and the pull ring is located in the pit and stuck above the center hole.

[0012] Furthermore, the soft cover pad is fixedly connected to the hard cover sheet.

[0013] Furthermore, the edge of the soft cover pad is discontinuously connected to the edge of the hard cover sheet.

[0014] Furthermore, the suction cup assembly also includes a soft cover pad fixing seat, a clamping portion is provided on the side of the second plate close to the first plate, the soft cover pad fixing seat includes a ring foot portion and a fixing ring, the ring foot portion is clamped in the clamping portion, and the soft cover pad is located inside the fixing ring.

[0015] Furthermore, the soft cover pad includes an outer flat portion and an inner concave portion, the outer flat portion is clamped on the soft cover pad fixing seat, and the inner concave portion is pressed on the air outlet.

[0016] Furthermore, the height of the pull ring is smaller than the height of the pit.

[0017] Furthermore, the connecting portion includes a pull rod or a pull rope.

[0018] Furthermore, the second plate is provided with a recessed area on a side away from the first plate, and when the soft suction cup squeezes the air for adsorption, the soft suction cup is located in the recessed area.

[0019] The embodiments of the present invention have at least the following technical effects:

[0020] The embodiment of the present invention provides a base for fixing a cup body, wherein a clamping assembly is arranged on the support shell, and a cross-type variable diameter ring guard can change its diameter under the external force of a human hand, driving the support rod and the slider to move on the slide rail, and can clamp beakers or measuring cylinders of different diameters; the slide rail is arranged in a groove, so that the bottom of the cup body to be clamped can contact more with the upper surface of the first plate, and the placement is more stable. When in use, first use a soft suction cup to adsorb the entire base on the desktop, then expand the cross-type variable diameter ring guard outward, and at the same time drive the three support rods to move outward, then place the beaker or measuring cylinder on the first plate, and then manually retract the cross-type variable diameter ring guard inward until the inner side of the cross-type variable diameter ring guard contacts the outer wall of the beaker or measuring cylinder, lock the cross-type variable diameter ring guard so that it cannot expand outward, and the three support rods are distributed on the first plate in a tripod. At this time, when the beaker or measuring cylinder is moved, it cannot expand outward because the cross-type reducing ring guard has been locked, and the three support rods are fixed by the cross-type reducing ring guard and will not move due to external force. The three support rods and the cross-type reducing ring guard provide strong support for the beaker or measuring cylinder. At the same time, because the diameters of the bottom and the body of the measuring cylinder are different, the support rods do not contact the cup body when the inner side of the cross-type reducing ring guard contacts the cup body, leaving enough space for the bottom of the measuring cylinder. However, the cross-type reducing ring guard can lock the body of the measuring cylinder, so that the measuring cylinder can be firmly fixed on the base.

[0021] In the present invention, a soft suction cup is used to adsorb the base on the desktop, and the cross-type variable diameter ring guard drives the support rod and the slider to move on the slide rail. When the inner side of the cross-type variable diameter ring guard contacts the cup body, the support rod does not contact the cup body, thereby solving the technical problems of single function and complex driving of the fixed base, and achieving the technical effect that one base can fix both the beaker and the measuring cylinder, and the driving method is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A three-dimensional schematic diagram of a base for fixing a cup body provided by an embodiment of the present invention;

[0024] Figure 2 A cross-sectional schematic diagram of a base for fixing a cup body provided by an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of a lock bar structure provided by an embodiment of the present invention;

[0026] Figure 4 A partial cross-sectional schematic diagram of a base for fixing a cup body provided by an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the connecting shaft structure provided by an embodiment of the present invention;

[0028] Figure 6 A partial structural schematic diagram of a base for fixing a cup body provided by an embodiment of the present invention;

[0029] Figure 7 A schematic diagram of the structure of a soft cover pad fixing seat provided in an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the soft cover pad structure provided by an embodiment of the present invention.

[0031] Icons: 11-first plate; 12-second plate; 13-side panel; 21-slide rail; 22-slider; 23-support rod; 24-cross-type reducer; 31-soft suction cup; 32-soft cover pad; 33-hard cover plate; 34-spring; 35-connecting part; 36-pull ring; 37-soft cover pad fixing seat; 111-groove; 112-pit; 121-locking part; 122-recessed area; 231-first horizontal section; 232-first vertical section; 241-rib; 242-connecting shaft; 243-locking strip; 310-air vent; 321-outer flat part; 322-inner recessed part; 371-ring foot; 372-fixing ring; 2421-protrusion; 2422-flexible contact part. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0034] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0035] For the first aspect, see Figures 1 to 6The embodiment of the present invention provides a base for fixing a cup body, comprising: a supporting shell, the supporting shell comprising a first plate 11, a second plate 12 and a side panel 13; a clamping assembly, the clamping assembly comprising a slide rail 21, a slider 22, a support rod 23, and a cross-type variable diameter ring guard 24, the first plate 11 comprises at least three grooves 111, the three grooves 111 are radially and evenly distributed on the first plate 11, the slide rail 21 is arranged in the groove 111, the slider 22 is connected to the slide rail 21, one end of the support rod 23 is fixed to the slider 22, and the other end of the support rod 23 is connected to the cross-type variable diameter ring guard 24, when the diameter of the cross-type variable diameter ring guard 24 changes under the action of external force, the support rod 23 and the slider 22 are driven to move on the slide rail 21; a suction cup assembly, the suction cup assembly comprises a soft suction cup 31, and the soft suction cup is fixed on the side of the second plate 12 away from the first plate 11; when the inner side of the cross-type variable diameter ring guard 24 contacts the cup body, the support rod 23 does not contact the cup body.

[0036] In this embodiment, the clamping assembly is arranged on the support shell, and the cross-type variable diameter ring guard 24 can change its diameter under the external force of the human hand, driving the support rod 23 and the slider 22 to move on the slide rail 21, and can clamp beakers or measuring cylinders of different diameters; the slide rail 21 is arranged in the groove 111, so that the bottom of the cup body to be clamped can contact the upper surface of the first plate 11 more, and the placement is more stable. When in use, first use the soft suction cup 31 to adsorb the entire base on the desktop, the soft suction cup 31 will not damage the desktop, and it is also convenient to install the base in various places; then the cross-type variable diameter ring guard 24 is expanded outward, and the three support rods 23 are moved outward at the same time, and then the beaker or measuring cylinder is placed on the first plate 11, and then the cross-type variable diameter ring guard 24 is manually retracted inward until the inner side of the cross-type variable diameter ring guard 24 contacts the outer wall of the beaker or measuring cylinder, and the cross-type variable diameter ring guard 24 is locked so that it cannot expand outward, and the three support rods 23 are distributed on the first plate 11 in a tripod. At this time, when the beaker or measuring cylinder is moved, it cannot expand outward because the cross-type reducing ring guard 24 has been locked, and the three support rods 23 are fixed by the cross-type reducing ring guard 24 and will not move due to external force. The three support rods 23 and the cross-type reducing ring guard 24 provide strong support for the beaker or measuring cylinder; at the same time, because the diameters of the bottom and the body of the measuring cylinder are different, it is necessary that when the inner side of the cross-type reducing ring guard 24 contacts the cup body, the support rods 23 do not contact the cup body, leaving enough space for the bottom of the measuring cylinder, but the cross-type reducing ring guard 24 can lock the body of the measuring cylinder, so that the measuring cylinder can be firmly fixed on the base.

[0037] In this embodiment, the base is adsorbed on the desktop by a soft suction cup 31, and the cross-type reducer ring guard 24 drives the support rod 23 and the slider 22 to move on the slide rail 21. When the inner side of the cross-type reducer ring guard 24 contacts the cup body, the support rod 23 does not contact the cup body, thereby achieving a technical effect that a base can fix both the beaker and the measuring cylinder, and the driving method is simple and easy to use.

[0038] Optionally, the cross-type variable diameter ring guard 24 includes a plurality of ribs 241, a connecting shaft 242 and a locking strip 243, through holes are set at both ends and the middle of the ribs 241, and the plurality of ribs 241 are cross-connected to each other in an X-shape to form a circle, and the connecting shaft 242 passes through the overlapping through holes to connect the ribs, and a protrusion 2421 is set on the surface of the connecting shaft 242 in the middle of any two adjacent X-shaped cross connections, and the locking strip 243 is stuck on the protrusion 2421.

[0039] In this embodiment, the design of the rib 241 allows the cross-type variable diameter ring guard 24 to flexibly change its diameter when subjected to external force, so as to adapt to cups of different sizes. The stability of the structure during deformation is ensured by the X-shaped cross connection and the fixation of the connecting shaft 242, and structural failure caused by deformation is avoided. It is easy to lock and unlock, and the combination of the protrusion 2421 and the locking bar 243 provides a simple and effective locking mechanism. The protrusion 2421 is set on the surface of the connecting shaft 242 in the middle of any two adjacent X-shaped cross connections. When the cross-type variable diameter ring guard 24 is adjusted to a suitable diameter and contacts the cup body, the locking bar 243 can be easily stuck on the protrusion 2421 to achieve locking and prevent the ring guard from accidentally expanding. Here, the role of the locking bar 243 is to ensure that the ring guard does not expand. The unlocking process is also simple, and only the locking bar 243 needs to be moved to disengage it from the protrusion 2421. Such a design is also conducive to maintenance and replacement. If a part of the cross-type reducer ring guard 24 (such as a rib or a lock bar) is damaged or worn, the part can be replaced separately without replacing the entire clamping assembly. This reduces maintenance costs and simplifies the maintenance process.

[0040] Furthermore, one end of the lock bar 243 can be fixedly connected to a protrusion 2421 to prevent the lock bar 243 from being lost. Figure 3 The locking strip 243 shown is only an example, and it is easy to think that more strip-shaped objects with buttonholes can play the role of the locking strip 243. The number and length of the ribs 241 can be adjusted according to actual needs, and are not limited to the number shown in the figure.

[0041] Optionally, a flexible contact portion 2422 is provided on the side of the connecting shaft 242 close to the cup body. In this embodiment, the flexible contact portion 2422 can protect the surface of the cup body and reduce the direct contact between the connecting shaft 242 and the cup body, thereby avoiding scratches or damage when the cup body is fixed. This is especially important for precision laboratory vessels that need to keep the surface intact. It can also improve stability, and the flexible contact portion 2422 can better fit the shape of the cup body, especially when there are tiny bumps or irregular shapes on the surface of the cup body. This fit enhances the friction between the cross-type reducer ring guard 24 and the cup body, making the entire base more stable when fixing the cup body. Preferably, the flexible contact portion 2422 is usually made of a soft and elastic material, such as rubber or silicone.

[0042] Optionally, the support rod 23 includes a first transverse section 231 and a first vertical section 232, the end of the first transverse section 231 is connected to the cross-type reducer ring 24, and the end of the first vertical section 232 is fixed to the slider 22; or the support rod 23 is inclined relative to the first plate 11.

[0043] In this embodiment, if the support rod 23 includes a first transverse section 231 and a first vertical section 232, as shown in FIG. Figure 2 The existence of the first transverse section 231 and the first vertical section 232 shown in the figure will enable the fixed cup body, such as the lower part of the measuring cylinder, to be completely accommodated under the support rod 23. Of course, the length of the first transverse section 231 is greater than the difference between the radius of the lower part of the measuring cylinder (the lower part of the measuring cylinder, i.e., the part that is inconsistent with the diameter of the measuring cylinder body) and the radius of the measuring cylinder body, and the height of the first vertical section 232 is greater than the height of the lower part of the measuring cylinder, so that the inner side of the cross-type reducer ring guard 24 can be closely attached to the outer wall of the cup body to provide support; or the support rod 23 is inclined relative to the first plate 11, such as Figure 4 The support rod 23 is a straight rod, and the area formed by the inclined support rod 23 and the plane where the upper surface of the first plate 11 is located can still accommodate a measuring cylinder with a large lower diameter and a small upper diameter. Based on this, it is easy to think that the cup body that can be fixed can also be a flask, such as a conical flask or a round-bottom flask, by simply adjusting the length of the first horizontal section 231 and the height of the first vertical section 232, or adjusting the length and inclination of the support rod 23.

[0044] Optional, such as Figure 2As shown, the soft suction cup 31 includes an air outlet 310 at the top, a pit 112 is provided at the center of the first plate 11, and a center hole is opened in the middle of the pit 112. The suction cup assembly also includes a soft cover pad 32, a hard cover plate 33, a spring 34, a connecting portion 35 and a pull ring 36; the soft cover pad 32 covers the air outlet 310, the hard cover plate 33 is located above the soft cover pad 32, one end of the spring 34 is against the hard cover plate 33, and the other end of the spring 34 is against the inner side of the first plate 11; the connecting portion 35 passes through the spring 34 and the center hole, one end is connected to the hard cover plate 33, and the other end is connected to the pull ring 36, and the pull ring 36 is located in the pit 112 and stuck above the center hole.

[0045] In this embodiment, considering that after the base is sucked on the desktop by the soft suction cup 31, it is rather laborious to remove it, and the soft suction cup 31 is fixed together with the second plate 12, and repeated pulling may cause the soft suction cup 31 to fall off, an air vent 310 is designed on the top of the soft washing dish, and the soft cover pad 32 covers the air vent 310. The elastic force of the spring 34 causes the hard cover sheet 33 to press on the soft cover pad 32. The shapes of the hard cover sheet 33 and the soft cover pad 32 match. When the soft suction cup 31 is sucked on the desktop, a closed space is formed inside the suction cup, and the entire base is firmly fixed to the desktop. If you want to move the base, pull up the pull ring 36, the connecting part 35 overcomes the elastic force of the spring 34 and drives the hard cover plate 33 to move upward. At this time, only the soft cover pad 32 is left covering the air outlet 310 due to air pressure. However, because the soft cover pad 32 is soft, it will be deformed when pressed. Therefore, after the external force is removed, the soft cover pad 32 will recover by itself. The self-recovery process combined with the external force shaking will make it easier for the soft suction cup 31 to deflate from the air outlet 310, making it easier to move.

[0046] In addition, the pull ring 36 is set in the pit 112 to take into account the "foolproof design" when using this base. If you want to remove the base, there must be no cup placed on it. Compared with setting the deflation switch around the side plate of the base, setting it in the center of the first plate 11 can obviously prevent the experimenter from accidentally touching it, resulting in the base not being adsorbed, and the safety hazard caused if a cup is placed on the base. Preferably, the diameter of the pit 112 is less than 1.5 cm, so that even a 5 ml beaker (with an outer diameter of 2 cm) can be stably placed on the first plate 11.

[0047] Optionally, the soft cover pad 32 is fixedly connected to the hard cover sheet 33. In this embodiment, the soft cover pad 32 is fixedly connected to the hard cover sheet 33 to more surely pull up the soft cover pad 32 with the pull ring, and release the gas from the gas outlet 310, which helps to ensure that when the gas needs to be released, it can be operated quickly and effectively.

[0048] Optionally, the edge of the soft cover pad 32 is intermittently connected to the edge of the hard cover sheet 33. In this embodiment, the edge of the soft cover pad 32 is intermittently connected to the edge of the hard cover sheet 33 to facilitate gas release. When the hard cover sheet 33 is lifted by the pull ring 36 to release the gas inside the soft suction cup 31, if the soft cover pad 32 is completely in contact with the hard cover sheet 33 and fits tightly, the release of gas will be hindered to a certain extent (at this time, the soft cover pad 32 and the hard cover sheet 33 are also subject to the pressure of external air pressure). By adopting the intermittent connection method, that is, the middle part of the soft cover pad 32 is not connected to the hard cover sheet 33, and the edge of the soft cover pad 32 is not completely connected to the hard cover sheet 33, but a part of the edge of the soft cover pad 32 is connected to the hard cover sheet 33, it can be easier to deform the edge of the soft cover pad 32 when the hard cover sheet 33 is lifted, thereby more effectively opening the air outlet 310, so that the gas can be released smoothly, improving the gas release efficiency, and making the base easier to move.

[0049] Furthermore, an air hole can be set in the middle part of the hard cover plate 33, so that when lifting, the external air pressure can more easily press the middle part of the soft cover pad 32. When the hard cover plate 33 wants to lift part of the edge of the soft cover pad 32, it is more conducive to the deformation of the soft cover pad 32, and it will be more labor-saving to lift it up.

[0050] Optionally, the suction cup assembly further includes a soft cover pad fixing seat 37, a clamping portion 121 is provided on one side of the second plate 12 close to the first plate 11, the soft cover pad fixing seat 37 includes a ring foot portion 371 and a fixing ring 372, the ring foot portion 371 is clamped in the clamping portion 121, and the soft cover pad 32 is located inside the fixing ring 372. In this embodiment, Figure 7 As shown, by introducing the soft cover pad fixing seat 37 and clamping its ring foot portion 371 on the clamping portion 121 of the second plate 12, a stable support structure is formed. This helps to ensure that the soft cover pad 32 maintains its position unchanged on the plane and does not translate, thereby enhancing the structural stability of the entire suction cup assembly. The matching design of the clamping portion 121 and the ring foot portion 371 enables the soft cover pad fixing seat 37 to be accurately installed in a predetermined position. This positioning accuracy helps to ensure the correct alignment between the soft cover pad 32 and the hard cover sheet 33 and other related components, thereby improving the overall performance and reliability of the suction cup assembly. Moreover, such a design is also conducive to installation and disassembly. By designing the shape and size of the clamping portion 121 and the ring foot portion 371 reasonably, the installation and disassembly process can be made simpler and faster. In addition, the space inside the fixing ring 372 also provides sufficient flexibility for the installation of the soft cover pad 32.

[0051] Optional, such as Figure 8As shown, the soft cover pad 32 includes an outer flat portion 321 and an inner concave portion 322, wherein the outer flat portion 321 is clamped on the soft cover pad fixing seat 37, and the inner concave portion 322 is pressed on the air outlet 310. In this embodiment, the outer flat portion 321 is clamped on the soft cover pad fixing seat 37, ensuring the stable installation of the soft cover pad 32 and preventing the soft cover pad from shifting or falling off during use. The inner concave portion 322 is more closely pressed on the air outlet 310, forming a tight sealing structure, preventing gas from leaking from the air outlet 310, and ensuring the adsorption effect.

[0052] Optionally, the height of the pull ring 36 is less than the height of the pit 112. In this embodiment, when the height of the pull ring 36 is less than the height of the pit 112, the pull ring 36 will not protrude from the surface of the first plate 11 during normal use. This helps prevent the experimenter from accidentally touching the pull ring 36 when operating or placing the cup body, thereby avoiding unnecessary loosening of the base or gas release. At the same time, the lower pull ring 36 will not interfere with the cup body placed on the base, ensuring the smooth progress of the experiment.

[0053] Optionally, the connection portion 35 includes a pull rod or a pull rope. In this embodiment, if the connection portion 35 adopts a pull rod, its advantage is high strength: the pull rod is made of a rigid material, has high strength and stability, and can withstand large pulling force. Accurate positioning: the pull rod connection is stable, and the relative position and accuracy between the various components can be ensured. Good durability: the connection method of the pull rod is usually relatively firm and can maintain stable performance for a long time. If a pull rod is used, its length needs to be designed so that after assembly, the pull rod can press the hard cover plate 33 on the soft cover pad 32, and cannot make the upper surface of the pull ring protrude from the upper surface of the first plate 11. If a pull rope is used, it is only necessary to press the hard cover plate 33 on the soft cover pad 32.

[0054] Optional, such as Figure 2 As shown, the second plate 12 is provided with a recessed area 122 on a side away from the first plate 11. When the soft suction cup 31 squeezes the air for adsorption, the soft suction cup 31 is located in the recessed area 122. In this embodiment, the recessed area 122 provides an additional space for the soft suction cup 31. When the soft suction cup 31 squeezes the air for adsorption, it can ensure that the soft suction cup 31 has enough space for deformation and adsorption operation. This helps to enhance the adsorption effect and improve the stability and reliability of adsorption.

[0055] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes discussed in the present invention may be alternated, modified, combined, or deleted. Further, other steps, measures, and schemes in the various operations, methods, and schemes discussed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and schemes in the prior art that are similar to those disclosed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0056] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

[0059] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A base for fixing a cup body, characterized in that: include: A support shell, the support shell comprising a first plate, a second plate and a side panel; A clamping assembly, the clamping assembly includes a slide rail, a slider, a support rod, and a cross-type variable diameter ring guard, the first plate includes at least three grooves, the three grooves are radially evenly distributed on the first plate, the slide rail is arranged in the groove, the slider is connected to the slide rail, one end of the support rod is fixed to the slider, and the other end of the support rod is connected to the cross-type variable diameter ring guard, and when the diameter of the cross-type variable diameter ring guard changes under the action of an external force, the support rod and the slider are driven to move on the slide rail; A suction cup assembly, the suction cup assembly comprising a soft suction cup, the soft suction cup being fixed to a side of the second plate away from the first plate; The cross-type variable diameter ring guard comprises a plurality of ribs, a connecting shaft and a locking strip, through holes are arranged at both ends and in the middle of the ribs, the plurality of ribs are mutually connected in an X-shaped cross to form a ring, the connecting shaft passes through the overlapping through holes to connect the ribs, a protrusion is arranged on the surface of the connecting shaft in the middle of any two adjacent X-shaped cross connections, and the locking strip is clamped on the protrusion; The support rod includes a first horizontal section and a first vertical section, the end of the first horizontal section is connected to the cross-type reducer ring guard, and the end of the first vertical section is fixed to the slider; or the support rod is inclined relative to the first plate; when the inner side of the cross-type reducer ring guard contacts the cup body, the support rod does not contact the cup body.

2. The base for fixing the cup body according to claim 1, characterized in that: A flexible contact portion is provided on one side of the connecting shaft close to the cup body.

3. The base for fixing a cup body according to claim 1, characterized in that: The soft suction cup includes an air outlet at the top, a pit is provided at the center of the first plate, a center hole is provided in the middle of the pit, and the suction cup assembly also includes a soft cover pad, a hard cover sheet, a spring, a connecting part and a pull ring; The soft cover pad covers the air outlet, the hard cover sheet is located above the soft cover pad, one end of the spring abuts against the hard cover sheet, and the other end of the spring abuts against the inner side of the first plate; The connecting portion passes through the spring and the center hole, one end of which is connected to the hard cover plate, and the other end of which is connected to the pull ring. The pull ring is located in the pit and is stuck above the center hole.

4. The base for fixing the cup body according to claim 3, characterized in that: The soft cover pad is fixedly connected to the hard cover sheet.

5. The base for fixing the cup body according to claim 4, characterized in that: The edge of the soft cover pad is discontinuously connected to the edge of the hard cover sheet.

6. The base for fixing a cup body according to claim 3, characterized in that: The suction cup assembly also includes a soft cover pad fixing seat, a clamping portion is provided on one side of the second plate close to the first plate, the soft cover pad fixing seat includes a ring foot portion and a fixing ring, the ring foot portion is clamped in the clamping portion, and the soft cover pad is located inside the fixing ring.

7. The base for fixing a cup body according to claim 6, characterized in that: The soft cover pad comprises an outer flat portion and an inner concave portion, wherein the outer flat portion is clamped on the soft cover pad fixing seat, and the inner concave portion is pressed on the air outlet.

8. The base for fixing a cup body according to claim 3, characterized in that: The height of the pull ring is smaller than the height of the pit.

9. The base for fixing a cup body according to claim 3, characterized in that: The connecting part includes a pull rod or a pull rope.

10. The base for fixing a cup body according to claim 3, characterized in that: The second plate is provided with a recessed area on a side away from the first plate, and when the soft suction cup squeezes the air for adsorption, the soft suction cup is located in the recessed area.

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