Gas container clamping device

Abstract

A gas container clamping device includes a frame with a transmission belt fixed inside the frame, two opposing clamping structures disposed in the middle of the frame, and a supporting structure disposed on the transmission belt; the clamping structure includes a movable frame slidably connected to the side wall of the frame, a plurality of rollers disposed in parallel on the movable frame, and an auxiliary top wheel disposed on the movable frame and located between two adjacent rollers; the supporting structure includes a housing, two slots disposed on both ends of the housing near the frame, a fixed shaft disposed in the slot, and an eccentric wheel disposed on the fixed shaft and rotated by the rollers and the auxiliary top wheel to clamp the cylinder. The present invention does not require manual clamping, locking, and unlocking operations, has high work efficiency, and does not require the use of precision parts to achieve the desired effect, thereby reducing maintenance and equipment costs. It has the advantages of high practicality and high economic efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of special electronic gas filling equipment, and particularly relates to a gas container clamping device. Background Art

[0002] Gases used in the semiconductor industry are collectively referred to as electronic gases. They can be categorized into three main groups: pure gases, high-purity gases, and semiconductor specialty material gases. Specialty material gases are primarily used in epitaxy, doping, and etching processes; high-purity gases are primarily used as dilution and carrier gases.

[0003] In the transportation and use of special gases, they are generally transferred through pipes through steel cylinders, while the existing pipe transfer for empty steel cylinders is mostly carried out by manual transportation and filling, which has low transportation efficiency and certain risks. The document with authorization announcement number CN113048395B discloses an intelligent empty cylinder conveying device and use method of a special electronic gas filling system. In this technical solution, the clamping mechanism includes a fixed bar, a fixed shell, a rotating shaft, a turntable, a limiting mechanism, a vortex bar, a fixed disk, a first slide groove, a first slider, a driving tooth, a U-shaped frame, a clamping roller, a first servo motor, a through groove, a flat gear, a gear ring and a rack. Fixed bars are equidistantly fixed on the surface of the transmission belt, a fixed shell is fixed on the top of the fixed bar, and a rotating shaft is rotatably connected to the bottom of the inner wall of the fixed shell through a bearing. A turntable is fixed at one end of the rotating shaft, a vortex bar is fixed on the upper surface of the turntable, a fixed disk is fixed in the middle of the inner wall of the fixed shell, and a first slide is equidistantly provided on the surface of the fixed disk. The gear train is connected to the transmission gear of the transmission gear and the transmission gear is connected to the transmission gear of the transmission gear by the spring and the spring.

[0004] The clamping mechanism disclosed in this scheme realizes the function of clamping the steel cylinder by meshing the racks and the flat gears on both sides of the frame. When the conveyor belt drives the fixed shell to move, the rack drives the flat gear to rotate, the flat gear drives the turntable meshed with it to rotate, the vortex bar on the turntable drives the drive teeth meshed with the vortex bar to move, and finally drives the first slider to slide on the first slide groove, thereby completing the clamping of the steel cylinder. In this structure, the meshing structure includes the meshing of the flat gear and the rack, the meshing of the rack and the turntable, and the meshing of the vortex bar and the drive teeth, all of which are not on the same plane. In actual operation, it is easy to get stuck or stuck. In addition, the locking and unlocking of the steel cylinder by this clamping structure requires an additional limiting mechanism. Therefore, the clamping structure of this device has very high requirements for the strength and precision of the parts, the cost of equipment operation and subsequent maintenance is high, and the practicality is low. Summary of the Invention

[0005] In response to the above-mentioned problems, the purpose of the present invention is to provide a gas container clamping device, which completes a series of actions of locking and unlocking the cylinder during the transmission process by setting a clamping structure, a supporting structure and a transition structure. There is no need for manual clamping, locking and unlocking operations, which improves work efficiency. There is no need to rely on precision parts to achieve the desired effect, which reduces maintenance costs and equipment costs. It has the advantages of strong practicality and high economy.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] A gas container clamping device comprises a frame, a transmission belt is fixed inside the frame, two clamping structures arranged opposite to each other are arranged in the middle of the frame, and a supporting structure is arranged on the transmission belt;

[0008] The clamping structure includes a movable frame slidably connected to the side wall of the frame, a plurality of rollers arranged in parallel on the movable frame, and an auxiliary top wheel arranged on the movable frame and located between two adjacent rollers;

[0009] The supporting structure includes a shell, two slots respectively arranged on the two ends of the shell close to the frame, a fixed shaft arranged in the slot, and an eccentric wheel arranged on the fixed shaft and rotating under the action of the roller and the auxiliary top wheel to clamp the cylinder.

[0010] As a further preferred embodiment of the present invention, the clamping structure also includes an opening arranged on the frame for passing through the movable frame, two extension plates arranged on the outer wall of the frame and respectively connected to the upper and lower sides of the opening, a guide rail arranged on the extension plate, and a limit block arranged on the movable frame and slidably connected to the guide rail.

[0011] As a further preferred embodiment of the present invention, the movable frame includes a C-shaped plate body with the limit blocks respectively provided at the upper and lower ends, a support plate arranged at the opening of the C-shaped plate body, a first stud arranged on the support plate, a first nut arranged on the first stud and used to limit the roller, a control column arranged on the side of the C-shaped plate body away from the support plate, an opening arranged on the control column, a bar hole arranged on the extension plate, and a first bolt passing through the opening and the bar hole respectively.

[0012] As a further preferred embodiment of the present invention, the supporting structure also includes a slide groove arranged on the bottom surface of the shell, two sliding blocks arranged in the slide groove, two arc-shaped clamping plates respectively arranged on the two sliding blocks and used to enclose and clamp the cylinder under the action of the eccentric wheel, and a lifting spring arranged in the slide groove and respectively connected to the two sliding blocks.

[0013] As a further preferred embodiment of the present invention, the supporting structure also includes a track arranged on the bottom surface of the shell and connected to the slide groove, a moving block slidably connected to the track, two second studs respectively arranged at the lower ends of the two sliding block bodies, a hinge plate whose two ends are respectively socketed with the moving block and the second stud, and a second nut arranged on the second stud.

[0014] As a further preferred embodiment of the present invention, the supporting structure also includes a threaded groove arranged on the lower surface of the moving block, a second bolt connected to the threaded groove, and a limiting column arranged at the lower end of the second bolt; the limiting column is inserted into the positioning bar hole opened on the transmission belt.

[0015] As a further preferred embodiment of the present invention, the movable frame includes a mounting column arranged on the inner side of the C-shaped plate.

[0016] As a further preferred embodiment of the present invention, the eccentric wheel is provided with an outer ring groove, and the roller is provided with an outer ring protrusion engaged with the outer ring groove.

[0017] As a further preferred embodiment of the present invention, the frame is provided with two groups of transition structures on both sides of the clamping structure, each group of the transition structures includes a rotating shaft provided on the side wall of the frame, and a transition wheel provided on the rotating shaft.

[0018] As a further preferred embodiment of the present invention, a plurality of rotating shafts are arranged in parallel, the diameter of the transition wheel increases or decreases along the transmission direction of the transmission belt, and the shortest distance between the transition wheel body and the shell is greater than the shortest distance between the roller wheel body and the shell.

[0019] In summary, the present invention has the following beneficial effects:

[0020] The present invention completes a series of actions of smoothly clamping and unlocking the cylinder during the transmission process through the cooperation of the clamping structure, the supporting structure and the transition structure. The different clamping requirements at each stage are achieved by the distance that the wheel body arranged on the frame protrudes from the side wall. There is no need for manual clamping, locking and unlocking operations, which improves work efficiency.

[0021] The locking and unlocking actions of the cylinders during transportation are achieved through the interaction between the wheel bodies, without the need for precision components such as meshing structures of gears and racks, gears and gears, gears and vortex bars, etc., which reduces the probability of component failure, reduces maintenance costs and equipment costs, is more practical and economical, and has a wide range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attachment Figure 1 It is a structural schematic diagram of the present invention.

[0023] Attachment Figure 2 It is a side structural schematic diagram of the present invention.

[0024] Attachment Figure 3 It is a side structural schematic diagram of the clamping structure of the present invention.

[0025] Attachment Figure 4 It is a schematic diagram of the top structure of the mobile rack of the present invention.

[0026] Attachment Figure 5 It is a partial structural schematic diagram of the mobile rack of the present invention.

[0027] Attachment Figure 6 It is a schematic diagram of the three-dimensional structure of the supporting structure of the present invention.

[0028] Attachment Figure 7 It is a schematic diagram of a partial top view of the supporting structure of the present invention.

[0029] Attachment Figure 8 It is a partial structural schematic diagram of the supporting structure of the present invention.

[0030] Description of the drawings: frame 11, transmission belt 12, positioning strip hole 121, movable frame 21, C-shaped plate 211, support plate 212, first stud 213, top wheel stud 213a, first nut 214, control column 215, opening 216, strip hole 217, first bolt 218, mounting column 219, roller 22, outer ring protrusion 221, auxiliary top wheel 23, opening 24, extension plate 25, guide rail 26, guide rod 26 1. Limit block 27, housing 31, support foot 311, slot 32, fixed shaft 33, eccentric wheel 34, outer ring groove 341, slide groove 35, ball 351, sliding block 36, arc-shaped clamping plate 37, lifting spring 38, track 39, moving block 310, second stud 311, hinge plate 312, second nut 313, threaded groove 314, second bolt 315, limit column 316, rotating shaft 41, transition wheel 42. DETAILED DESCRIPTION Example

[0031] The present invention provides a gas container clamping device, as shown in the attached Figure 1 As shown, it includes a frame 11 with a transmission belt 12 fixed inside. Two oppositely arranged clamping structures are provided in the middle of the frame 11. A supporting structure is provided on the transmission belt 12. Two sets of transition structures are respectively provided on both sides of the clamping structure of the frame 11.

[0032] Among them, as attached Figure 3 As shown, the clamping structure includes a mobile frame 21 slidably connected to the side wall of the frame 11, a plurality of rollers 22 arranged in parallel on the mobile frame 21, an auxiliary top wheel 23 arranged on the mobile frame 21 and located between two adjacent rollers 22, an opening 24 provided on the frame 11 for passing through the mobile frame 21, two extension plates 25 provided on the outer wall of the frame 11 and connected to the upper and lower sides of the opening 24 respectively, a guide rail 26 provided on the extension plate 25, and a limit block 27 provided on the mobile frame 21 and slidably connected to the guide rail 26; a guide rod 261 is provided in the guide rail 26, which matches the channel opened on the limit block 27 to further enhance the translation stability of the limit block 27. Furthermore, as shown in the attached Figure 3 , Attachment Figure 4 and attached Figure 5As shown, the movable frame 21 includes a C-shaped plate 211 with the limit blocks 27 respectively provided at the upper and lower ends, a support plate 212 arranged at the opening of the C-shaped plate 211, a first stud 213 arranged on the support plate 212, a top wheel stud 213a arranged between two adjacent first studs 213, a first nut 214 arranged on the first stud 213 and used to limit the roller 22, an auxiliary nut arranged on the top wheel stud 213a and used to limit the auxiliary top wheel 23, a control column 215 arranged on the side of the C-shaped plate 211 away from the support plate 212, an opening 216 arranged on the control column 215, a strip hole 217 arranged on the extension plate 25, a first bolt 218 passing through the opening 216 and the strip hole 217 respectively, and a mounting column 219 arranged on the inner side of the C-shaped plate 211. The upper and lower edges of the opening 24 are respectively connected to two extension plates 25, so that two parallel extension platforms are formed at the opening 24. Two guide rails 26 are provided on both sides of each extension plate 25, which respectively engage with two limit blocks 27 provided on the C-shaped plate 211, so that the upper and lower ends of the C-shaped plate 211 can slide smoothly on the extension platforms, thereby controlling the position of the roller 22 and the auxiliary top wheel 23 relative to the inner wall of the frame 11, thereby controlling the ejection distance of the eccentric wheel 34, and ultimately achieving the effect of controlling the degree of clamping of the cylinder. The control column 215 facilitates the manipulation of the position of the C-shaped plate 211. After the position is determined, the first bolt 218 is simultaneously inserted into the opening 216 and the bar hole 217 and tightened to fix the position of the C-shaped plate 211. The roller 22 and auxiliary top wheel 23 are both rotatably connected relative to the first stud 213 and the top wheel stud 213a, and their vertical position is fixed by the first nut 214 and the auxiliary nut. The detachable design of the roller 22 and auxiliary top wheel 23 allows for precise control of the clamping effect of cylinders of different sizes by changing the specifications, and the installation method is simple and practical. The mounting column 219 is provided inside the C-shaped plate 211 for accommodating the idle roller 22 and auxiliary top wheel 23.

[0033] As attached Figure 6 , Attachment Figure 7 And attached Figure 8As shown, the support structure includes a housing 31, legs 311 provided on both sides of the lower end of the housing 31, two slots 32 provided on both ends of the housing 31 near the frame 11, a fixed shaft 33 provided in the slot 32, an eccentric wheel 34 provided on the fixed shaft 33 and rotated by the roller 22 and the auxiliary lifting wheel 23 to clamp the cylinder, a sliding groove 35 provided on the bottom surface of the housing 31, balls 351 provided on the upper and lower sides of the sliding groove 35 to reduce wear, two sliding blocks 36 provided in the sliding groove 35, two arc-shaped clamping plates 37 provided on the two sliding blocks 36 and used by the eccentric wheel 34 to enclose and clamp the cylinder, and a lifting spring 38 provided in the sliding groove 35 and connected to the two sliding blocks 36. The eccentric wheel 34 has an outer ring groove 341, and the roller 22 has an outer ring protrusion 221 that engages with the outer ring groove 341.

[0034] The supporting structure further includes a track 39 arranged on the bottom surface of the shell 31 and connected to the sliding groove 35, a moving block 310 slidably connected to the track 39, two second studs 311 respectively arranged at the lower ends of the two sliding block bodies 36, a hinge plate 312 with two ends respectively connected to the moving block 310 and the second stud 311, a second nut 313 arranged on the second stud 311, a threaded groove 314 arranged on the lower surface of the moving block 310, a second bolt 315 connected to the threaded groove 314, and a limiting column 316 arranged at the lower end of the second bolt 315; the limiting column 316 is inserted into the positioning bar hole 121 opened on the transmission belt 12. The track 39 is positioned in the middle of the chute 35 and is perpendicular to the chute 35. The movable block 310 within the track is used to engage one end of a hinge plate 312, the other end of which is engaged with a second stud 311. The hinge plate 312 is secured at both ends by a second nut 313 and a second bolt 315 to prevent displacement. This arrangement ensures that the two sliding blocks 36 move synchronously within the chute 35, preventing the cylinder's position from shifting, which could negatively impact the filling process.

[0035] In this embodiment, each set of transition structures includes a rotating shaft 41 disposed on the side wall of the frame 11 and a transition wheel 42 disposed on the rotating shaft 41. Multiple rotating shafts 41 are provided in parallel, and the diameters of the transition wheels 42 increase or decrease along the transmission direction of the drive belt 12. Furthermore, the shortest distance between the transition wheel 42 and the housing 31 is greater than the shortest distance between the roller 22 and the housing 31. The purpose of providing transition structures in this device is to ensure smoother and more efficient locking and unlocking of the cylinder by the clamping structure, eliminating the possibility of fluctuating clamping forces. This reduces wear on the cylinder and increases its service life.

[0036] The present invention also includes a method of use, comprising:

[0037] (1) The housing 31 is placed on the transmission belt 12, and the position of the housing 31 on the frame 11 is positioned by inserting the limiting column 316 into the positioning bar hole 121, thereby defining the transmission path of the housing 31. The cylinder to be transported is placed in the housing 31 and located between the two arc-shaped clamping plates 37;

[0038] (2) During the transmission process of the transmission belt 12, the eccentric wheel 34 on the shell 31 is pushed into the shell 31 by the gradual expansion of the diameter of the transition wheel 42, and as the transmission belt 12 transports the shell 31 to the middle of the clamping structure, the eccentric wheel 34 rotates to the maximum extent, so that the two arc-shaped clamping plates 37 completely lock the cylinder. After the cylinder is locked, the transmission belt 12 stops and the worker fills the cylinder;

[0039] (3) After the filling is completed, the transmission belt 12 is started again. After the housing 31 transmits the clamping structure, the arc-shaped clamping plate 37 passes through the transition wheel 42 in a gradually decreasing diameter manner, and under the action of the lifting spring 38, the eccentric wheel 34 is pushed out of the housing 31, completing the unlocking of the cylinder. At this time, the filled cylinder can be removed.

[0040] In the above process, the filling and removal of the cylinder can adopt any form in the existing mode without any restriction. The circuits and controls involved are all existing technologies and will not be described in detail.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A gas container clamping device, comprising a frame (11), wherein a transmission belt (12) is fixed inside the frame (11), characterized in that: Two clamping structures arranged opposite to each other are provided in the middle of the frame (11), and a supporting structure is provided on the transmission belt (12); The clamping structure comprises a movable frame (21) slidably connected to a side wall of the frame (11), a plurality of rollers (22) arranged in parallel on the movable frame (21), and an auxiliary top wheel (23) arranged on the movable frame (21) and located between two adjacent rollers (22); The supporting structure comprises a housing (31), two slots (32) respectively provided on both ends of the housing (31) close to the frame (11), a fixed shaft (33) provided in the slot (32), and an eccentric wheel (34) provided on the fixed shaft (33) and rotating under the action of the roller (22) and the auxiliary top wheel (23) for clamping the cylinder; The supporting structure further includes a slide groove (35) provided on the bottom surface of the housing (31), two sliding blocks (36) provided in the slide groove (35), two arc-shaped clamping plates (37) respectively provided on the two sliding blocks (36) and used to enclose and clamp the cylinder under the action of the eccentric wheel (34), a lifting spring (38) provided in the slide groove (35) and respectively connected to the two sliding blocks (36), a track (39) provided on the bottom surface of the housing (31) and connected to the slide groove (35), a moving block (310) slidably connected to the track (39), and two arc-shaped clamping plates (37) respectively provided on the two sliding blocks (36) and used to enclose and clamp the cylinder under the action of the eccentric wheel (34). Two second studs (311) at the lower ends of the two sliding blocks (36), a hinge plate (312) with two ends respectively sleeved with the moving block (310) and the second stud (311), a second nut (313) arranged on the stud of the second stud (311), a threaded groove (314) arranged on the lower surface of the moving block (310), a second bolt (315) connected to the threaded groove (314), and a limiting column (316) arranged at the lower end of the second bolt (315); the limiting column (316) is inserted into the positioning bar hole (121) opened on the transmission belt (12).

2. A gas container clamping device according to claim 1, characterized in that: The clamping structure further includes an opening (24) provided on the frame (11) for passing through the movable frame (21), two extension plates (25) provided on the outer wall of the frame (11) and respectively connected to the upper and lower sides of the opening (24), a guide rail (26) provided on the extension plate (25), and a limit block (27) provided on the movable frame (21) and slidably connected to the guide rail (26).

3. A gas container clamping device according to claim 2, characterized in that: The movable frame (21) comprises a C-shaped plate (211) provided with the limiting blocks (27) at the upper and lower ends, a support plate (212) provided at an opening of the C-shaped plate (211), a first stud (213) provided on the support plate (212), a first nut (214) provided on the first stud (213) and used for limiting the position of the roller (22), a control column (215) provided on a side of the C-shaped plate (211) away from the support plate (212), an opening (216) provided on the control column (215), a strip hole (217) provided on the extension plate (25), and a first bolt (218) passing through the opening (216) and the strip hole (217), respectively.

4. A gas container clamping device according to claim 3, characterized in that: The movable frame (21) includes a mounting column (219) arranged on the inner side of the C-shaped plate (211).

5. A gas container clamping device according to claim 1, characterized in that: The eccentric wheel (34) is provided with an outer ring groove (341), and the roller (22) is provided with an outer ring protrusion (221) engaged with the outer ring groove (341).

6. A gas container clamping device according to claim 1, characterized in that: The frame (11) is provided with two groups of transition structures on both sides of the clamping structure, each group of the transition structures comprising a rotating shaft (41) provided on a side wall of the frame (11) and a transition wheel (42) provided on the rotating shaft (41).

7. A gas container clamping device according to claim 6, characterized in that: A plurality of rotating shafts (41) are arranged in parallel, the diameter of the transition wheel (42) increases or decreases along the transmission direction of the transmission belt (12), and the shortest distance between the wheel body of the transition wheel (42) and the housing (31) is greater than the shortest distance between the wheel body of the roller (22) and the housing (31).

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