Vertical vacuum quartz tube sealing machine

By designing clamping and sealing components, the complex problem of connecting the quartz tube to the vacuum machine's inlet end in the quartz tube vacuum sealing machine is solved, achieving convenient fixed connection and efficient sealing effect, preventing material deterioration and improving the equipment's practicality.

CN224062672UActive Publication Date: 2026-03-31HEFEI CPI EQUIP & TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing quartz tube vacuum sealing machines have a complex connection process between the quartz tube and the vacuum machine's air inlet during sealing, resulting in poor sealing performance. This may cause the material inside the quartz tube to deteriorate, leading to economic losses.

Method used

The device employs a clamping and fixing assembly and a sealing assembly. The clamping and fixing assembly achieves a convenient fixed connection between the quartz tube and the air inlet end of the vacuum machine through a sealing rubber ring and a limiting structure. The sealing assembly can adjust the sealing position according to the length of the quartz tube to ensure sealing performance and ease of operation.

Benefits of technology

The process of connecting the quartz tube to the vacuum machine's inlet end has been simplified, improving the sealing performance, preventing material deterioration, and enhancing the equipment's practicality and operational efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of quartz tube sealing, solves the technical problem that the butt joint process of a quartz tube and the air inlet end of a vacuum machine is complex, and particularly relates to a vertical vacuum quartz tube sealing machine which comprises a supporting plate serving as a supporting foundation, and one side of the top end of the supporting plate is fixedly connected with a vertical supporting rod. A transmission motor is installed at the top end of the vertical supporting rod through a base, a connecting box is arranged on one side of the bottom end of the vertical supporting rod, a clamping and fixing assembly used for clamping and fixing a glass tube is fixedly connected to the bottom end of the connecting box, and the clamping and fixing assembly comprises a butt joint supporting seat fixedly connected to one side of the bottom end of the connecting box. According to the utility model, due to the arrangement of the clamping and fixing assembly, the fixed connection process between the top end of the quartz tube and the suction end of the vacuum machine is more convenient and quicker, and due to the fact that the plurality of sealing rubber rings are fixedly connected in the clamping seats at equal intervals, the sealing performance is better after the two clamping seats are fixed.
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Description

Technical Field

[0001] This utility model relates to the technical field of quartz tube sealing, and in particular to a vertical vacuum quartz tube sealing machine. Background Technology

[0002] Quartz tube sealing machines are primarily used for the oxygen-free and anhydrous vacuum sealing and preservation of samples, as well as high-temperature solid-phase synthesis. Their applications are wide-ranging, including thermoelectric materials research laboratories, materials chemistry synthesis solutions, materials device research solutions, biopharmaceutical solutions, and solid-phase synthesis research laboratories. Existing quartz tube vacuum sealing machines utilize an oxyhydrogen flame gun during sealing. The oxyhydrogen gas is ignited by the flame gun to produce a high-intensity hydrogen flame, used for sintering and necking the quartz tube and for sealing. However, the connection process between the quartz tube and the vacuum tube inlet is overly complex, requiring multiple clamps for fixation. This process is cumbersome, and the connection position between the quartz tube and the vacuum inlet must be calibrated during fixing to prevent loose fit. Poor fit can result in air remaining inside the quartz tube, leading to deterioration of the stored material and economic losses. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a vertical vacuum quartz tube sealing machine, which solves the technical problem of complex docking process between quartz tube and vacuum machine inlet end, thereby improving the practicality of the equipment.

[0004] To solve the above technical problems, the present invention provides the following technical solution: a vertical vacuum quartz tube sealing machine, including a support plate as a support base, a vertical support rod fixedly connected to one side of the top of the support plate, a drive motor mounted on one side of the top of the vertical support rod via a base, a connecting box provided on one side of the bottom of the vertical support rod, and a clamping and fixing component for clamping and fixing the glass tube fixedly connected to the bottom of the connecting box;

[0005] The clamping and fixing assembly includes a docking support fixedly connected to one side of the bottom end of the connecting box. Two rotating rods are rotatably connected above and below the end of the docking support away from the vertical support rod. Clamping seats are fixedly connected to the ends of the two rotating rods on the same vertical line. Several sealing rubber rings are fixedly connected at equal intervals to the inner sides of the opposite ends of the two clamping seats. A quartz tube is clamped and fixed at the opposite ends of the two clamping seats. A sealing quartz block is placed on the upper inner side of the quartz tube. A limiting screw is screwed to the end of one of the two clamping seats away from the vertical support rod through the base. An anti-detachment limiting plate is fixedly connected to the end of the limiting screw near the other clamping seat. A limiting card seat that engages with the limiting screw is fixedly connected to the end of the other clamping seat away from the vertical support rod.

[0006] Preferably, a vacuum pump is installed inside the connector box via a base, and the air inlet end of the vacuum pump is connected to a connecting pipe. The end of the connecting pipe away from the vacuum pump extends to the inside of the two clamping seats and fits against the top of the quartz tube.

[0007] Preferably, the transmission end of the drive motor passes through one side of the top of the vertical support rod and is fixedly connected to the top of the connecting box.

[0008] Preferably, a sealing assembly for heat-sealing the glass tube opening is installed on one side of the top of the support plate;

[0009] The sealing assembly includes a sealing support frame fixedly connected to one side of the top of the support plate. A vertical position limiter is installed on the upper outer side of the sealing support frame. One end of the vertical position limiter is connected to an air inlet pipe, and the other end of the vertical position limiter is connected to a sealing nozzle. An air outlet limit valve is installed in the middle section of the sealing nozzle.

[0010] Preferably, the end of the sealing nozzle furthest from the sealing support frame is close to the quartz tube, and the two are on the same vertical plane.

[0011] Preferably, one end of the sealing nozzle passes through a vertical position limiter and is connected to the air inlet pipe, and the air inlet end of the air inlet pipe is connected to the air outlet end of an external hydrogen-oxygen generator.

[0012] By employing the above technical solution, this utility model provides a vertical vacuum quartz tube sealing machine, which has at least the following beneficial effects:

[0013] 1. Due to the setting of the clamping and fixing components, the fixed connection process between the top of the quartz tube and the suction end of the vacuum machine is more convenient and faster. Furthermore, the fact that several sealing rubber rings are fixedly connected at equal intervals inside the clamping seat can improve the sealing performance after the two clamping seats are fixed.

[0014] 2. Due to the design of the sealing component, this utility model can adjust the position of the sealing end of the sealing component in the vertical direction according to the different lengths of the quartz tube, thereby making the equipment more versatile and practical. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2This is a schematic diagram of the drive motor mounting structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the clamping base installation structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the docking support base of this utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the anti-detachment limiting plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the sealing nozzle installation structure of this utility model.

[0023] In the diagram: 1. Support plate; 2. Vertical support rod; 3. Drive motor; 4. Connecting box; 5. Clamping and fixing assembly; 51. Docking support seat; 52. Rotating rod; 53. Clamping seat; 54. Sealing rubber ring; 55. Quartz tube; 56. Sealing quartz block; 57. Limiting screw; 58. Anti-detachment limiting plate; 59. Limiting bracket;

[0024] 6. Sealing assembly; 61. Sealing support frame; 62. Vertical position limiter; 63. Sealing nozzle; 64. Air inlet pipe; 65. Air outlet limit valve;

[0025] 7. Vacuum pump; 8. Connecting pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] The existing sealing machine's connection process between the quartz tube and the vacuum tube inlet is overly complex, requiring multiple clamps for fixation. This process is cumbersome, and furthermore, the connection position between the quartz tube and the vacuum inlet must be calibrated during fixing to prevent loose fit. Otherwise, air may remain inside the quartz tube, leading to spoilage of the stored material and economic losses. Please refer to [reference needed]. Figures 1-6This embodiment provides a vertical vacuum quartz tube sealing machine, solving the technical problem of complex docking process between the quartz tube and the air inlet of the vacuum machine. The device includes a support plate 1 as a supporting base, a vertical support rod 2 fixedly connected to one side of the top of the support plate 1, a drive motor 3 mounted on one side of the top of the vertical support rod 2 via a base, and a connecting box 4 provided on one side of the bottom of the vertical support rod 2. A clamping and fixing assembly 5 for clamping and fixing the glass tube is fixedly connected to the bottom of the connecting box 4. The support plate 1 and the vertical support rod 2 serve as the supporting base, and the clamping and fixing assembly 5 clamps and fixes the glass tube to the air inlet of the vacuum equipment.

[0029] Existing quartz tube sealing machines typically require multiple pipe clamps and bolts to fix the glass tube to the vacuum equipment during operation. This fixing process is not only cumbersome, but also requires constant adjustment of the position of the two tube openings at the fixing point to ensure that they are always in a fully fitted state, thereby preventing insufficient sealing. In order to facilitate the operation process and solve such problems, a clamping and fixing component 5 is proposed. The clamping and fixing assembly 5 includes a docking support 51 fixedly connected to one side of the bottom of the connecting box 4. Two rotating rods 52 are rotatably connected above and below the end of the docking support 51 away from the vertical support rod 2. The ends of the two rotating rods 52, which are on the same vertical line, are fixedly connected to clamping seats 53. Several sealing rubber rings 54 are fixedly connected at equal intervals on the inner sides of the opposite ends of the two clamping seats 53. Quartz tubes 55 are clamped and fixed at the opposite ends of the two clamping seats 53. A sealing quartz block 56 is placed on the upper inner side of the quartz tube 55. One of the clamping seats 53 is screwed to a limiting screw 57 through a base at the end away from the vertical support rod 2. An anti-detachment limiting plate 58 is fixedly connected to the end of the limiting screw 57 near the other clamping seat 53. A limiting card seat 59 that fits into the limiting screw 57 is fixedly connected to the end of the other clamping seat 53 away from the vertical support rod 2.

[0030] A vacuum pump 7 is installed inside the connector box 4 via a base. The inlet end of the vacuum pump 7 is connected to a connecting pipe 8. The end of the connecting pipe 8 away from the vacuum pump 7 extends to the inside of the two clamping seats 53 and fits against the top of the quartz tube 55. In order to ensure a better seal between the inlet end of the vacuum pump 7 and the top of the quartz tube 55 after the connection is completed by the clamping and fixing assembly 5, the drive end of the drive motor 3 passes through one side of the top of the vertical support rod 2 and is fixedly connected to the top of the connector box 4.

[0031] During operation, the operator inserts the quartz tube 55 into a groove inside a clamping seat 53, at which point the top of the quartz tube 55 is completely in contact with the inlet of the vacuum pump 7. The operator then rotates the two clamping seats 53, which rotate within the docking support seat 51 via a connecting rotating rod 52, until the opposite ends of the two clamping seats 53 are completely in contact. During this process, several sealing rubber rings 54 fixedly connected to the inner side of the clamping seats 53 are completely in contact with the quartz tube 55 and the inlet of the vacuum pump 7. On the outside of the air end, to ensure sealing, during this period, the limiting screw 57 on one clamping seat 53 will flip and engage with the limiting seat 59 fixedly connected to the other clamping seat 53. Then, the operator rotates the limiting screw 57, at which time the limiting screw 57 will move horizontally until the anti-detachment limiting plate 58 at the end of the limiting screw 57 is in contact with the limiting seat 59. At that time, the anti-detachment limiting plate 58 and the limiting seat 59 will limit each other, thereby preventing the two clamping seats 53 from flipping outward, thus reducing the sealing performance.

[0032] Example 2

[0033] Based on Example 1, Example 1 solved the technical problem of the complex docking process between the quartz tube and the vacuum machine inlet. However, it still has the problem that the height of the hot-melt component cannot be adjusted according to the length of the quartz tube. Figures 1-6 As shown, the specific implementation process is as follows: In order to accommodate quartz tubes 55 of greater length, a sealing assembly 6 for heat-sealing the glass tube opening is installed on one side of the top of the support plate 1. The sealing assembly 6 includes a sealing support frame 61 fixedly connected to one side of the top of the support plate 1. A vertical position limiter 62 is installed on the upper outer side of the sealing support frame 61. One end of the vertical position limiter 62 is connected to an air inlet pipe 64, and the other end of the vertical position limiter 62 is connected to a sealing nozzle 63. An outlet limit valve 65 is installed in the middle section of the sealing nozzle 63. The end of the sealing nozzle 63 away from the sealing support frame 61 is close to the quartz tube 55, and the two are on the same vertical plane. One end of the sealing nozzle 63 passes through the vertical position limiter 62 and is connected to the air inlet pipe 64. The air inlet end of the air inlet pipe 64 is connected to the outlet end of an external hydrogen-oxygen generator.

[0034] After the quartz tube 55 is fixed, the operator adjusts the position of the sealing nozzle 63 according to the position of the sealing quartz block 56 inside the quartz tube 55. During this process, the operator can adjust the vertical position of the vertical position limiter 62 on the sealing support frame 61 by loosening the vertical position limiter 62, thereby moving the position of the sealing nozzle 63 connected to the vertical position limiter 62. After the movement is completed, the operator starts the vacuum pump 7, which will extract the air inside the quartz tube 55 through the connecting pipe 8. Then, the operator opens the exhaust limit valve 65 on the sealing nozzle 63, and the air inlet pipe 64 connected to the sealing nozzle 63 will supply fuel from the external hydrogen-oxygen generator. Then, the operator ignites the fuel sprayed from the sealing nozzle 63 to heat the joint between the quartz tube 55 and the sealing quartz block 56. Then, the operator starts the drive motor 3, which will drive the clamping and fixing component 5 to rotate through the connecting box 4, making the heating of the outer wall of the quartz tube 55 more uniform.

[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical vacuum quartz tube sealer comprising a support plate (1) as a support base, characterized in that: The top end of the support plate (1) is fixedly connected with a vertical support rod (2), the top end of the vertical support rod (2) is provided with a transmission motor (3) through a base, and the bottom end of the vertical support rod (2) is provided with a connecting box (4). The clamping and fixing assembly (5) comprises a butt joint support base (51) fixedly connected to the bottom end of the connecting box (4), two rotating rods (52) rotatably connected above and below the end of the butt joint support base (51) away from the vertical support rod (2), a clamping base (53) fixedly connected to the end of each of the two rotating rods (52) on the same vertical line, a plurality of sealing rubber rings (54) equidistantly fixedly connected to the inner side of the opposite end of the two clamping bases (53), a quartz tube (55) clamped and fixed to the opposite end of the two clamping bases (53), a sealing quartz block (56) placed on the inner side of the quartz tube (55), a limiting screw rod (57) screw-connected to the end of one of the two clamping bases (53) away from the vertical support rod (2) through a base, a anti-dropping limiting plate (58) fixedly connected to the end of the limiting screw rod (57) close to the other clamping base (53), and a limiting clamping base (59) fixedly connected to the end of the other clamping base (53) away from the vertical support rod (2) and embedded with the limiting screw rod (57).

2. A vertical vacuum quartz tube sealer according to claim 1, characterized in that: The inner side of the connecting box (4) is provided with a vacuum pump (7) through a base, the gas inlet end of the vacuum pump (7) is connected with a butt joint pipe (8), and the end of the butt joint pipe (8) away from the vacuum pump (7) extends to the inner side of the two clamping bases (53) and is in close contact with the top end of the quartz tube (55).

3. A vertical vacuum quartz tube sealer according to claim 1, characterized in that: The transmission end of the transmission motor (3) penetrates through the top end of the vertical support rod (2) and is fixedly connected with the top end of the connecting box (4).

4. A vertical vacuum quartz tube sealer according to claim 1, characterized in that: The top end of the support plate (1) is provided with a sealing assembly (6) for heat sealing the glass tube. The sealing assembly (6) comprises a sealing support frame (61) fixedly connected to the top end of the support plate (1), a vertical position limiter (62) mounted on the outer side of the sealing support frame (61), a gas inlet pipe (64) connected to one end of the vertical position limiter (62), and a sealing nozzle (63) connected to the other end of the vertical position limiter (62).

5. A vertical vacuum quartz tube sealer according to claim 4, characterized in that: The end of the sealing nozzle (63) away from the sealing support frame (61) is close to the quartz tube (55) and is on the same vertical plane.

6. A vertical vacuum quartz tube sealer according to claim 4, characterized in that: The end of the sealing nozzle (63) penetrates through the vertical position limiter (62) and is connected with the gas inlet pipe (64), and the gas inlet end of the gas inlet pipe (64) is connected with the gas outlet end of the external hydrogen oxygen machine.