A quartz tube turnover device and a turnover method thereof

Abstract

This invention belongs to the technical field of quartz products, and particularly relates to a quartz tube turnover device and its turnover method. The quartz tube turnover device includes a trolley body, a first placement component, and a second placement component. The trolley body includes two side plates connected to a rear plate, and a base plate connected to the lower end of the side plates. A base frame assembly is fixedly connected below the base plate. The first placement component is used for vertically placing the quartz tube; the second placement component is used for vertically placing the spray tube. This turnover device can be used for the turnover of quartz tubes and spray tubes, and allows for vertical placement, regardless of tube length. It also allows for cleaning and draining during turnover, facilitating product testing, and has strong versatility.

Description

Technical Field

[0001] This invention belongs to the field of quartz product technology, and particularly relates to a quartz tube turnover device and its turnover method. Background Technology

[0002] Quartz products are a general term for various products made from high-purity silicon dioxide as the core raw material, through high-temperature melting, molding, and precision processing. The raw material is usually refined quartz sand or natural crystal with a purity of 99.5% or higher, while some high-end products use synthetic quartz raw materials. Its microstructure is mostly amorphous, possessing core characteristics such as high temperature resistance, low coefficient of thermal expansion, strong chemical stability, excellent electrical insulation, and broad-spectrum light transmittance. It encompasses categories such as quartz glass tubes, rods, sheets, crucibles, fibers, ceramics, and synthetic quartz products, and is widely used in semiconductors, photovoltaics, optical communications, aerospace, precision optics, chemicals, and high-end laboratories.

[0003] Quartz tubes are a core category of quartz products, specifically referring to amorphous special glass tubes made from high-purity silicon dioxide (SiO2 purity ≥ 99.9%, semiconductor grade up to 99.999%) through high-temperature melting and drawing or centrifugal forming. Their softening point is approximately 1730℃, and they can be used stably for extended periods at 1100-1200℃. They have an extremely low coefficient of thermal expansion, are resistant to corrosion from most chemical media except hydrofluoric acid and hot phosphoric acid, have high light transmittance in the 180-3500nm ultraviolet-infrared band, and exhibit excellent electrical insulation properties. Based on function, they can be categorized into transparent, UV-filtering, colored, and high-purity synthetic quartz tubes, etc. They are key basic materials in semiconductor diffusion / oxidation processes, photovoltaic single-crystal pulling, electric light sources, optical instruments, high-temperature reaction vessels, and precision manufacturing.

[0004] Currently, the turnover method for quartz tubes on site is to place them flat in large turnover devices. Some tubes that are too long are manually carried for turnover. This method is inefficient, the operation is not standardized, and the large turnover devices occupy a lot of space and are not easy to manage uniformly. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a quartz tube turnover device and its turnover method. This device is applicable to the turnover of quartz tubes and jet tubes, and can be vertically arranged. It is not limited by the length of the tubes. It can also drain water during the cleaning and turnover process, facilitating product testing and demonstrating strong versatility.

[0006] In view of this, the present invention provides a quartz tube turnover device, comprising: The trolley body includes two side panels, a rear panel connecting the two side panels, a bottom plate connecting the lower ends of the side panels, and a base frame assembly fixedly connected to the bottom of the bottom plate. A first mounting component is used to vertically mount a quartz tube; The second mounting assembly is used to vertically mount the injection pipe.

[0007] In this technical solution, the turnover device can be used for the turnover of quartz tubes and jet tubes, and can be installed vertically. It is not limited by the length of the tube. The washing and turnover can also drain water to facilitate product testing, and it has strong versatility.

[0008] Furthermore, the first placement component includes: A clamping plate is fixedly mounted on a side plate, and a clamping groove is provided on the clamping plate; The backing plate is parallel to the base plate, and the base plate is inclined relative to the horizontal plane at an angle of less than or equal to 30°. The two ends of the backing plate are respectively inserted into the clamping grooves of the two side plates. The side of the backing plate away from the rear plate is provided with a V-shaped inclined surface for the outer circumference of the quartz tube to lean against.

[0009] In this technical solution, the lower end face of the quartz tube is placed on the base plate, and the outer peripheral surface rests on the V-shaped inclined surface, so that the quartz tube is placed in a slightly inclined state relative to the vertical plane. This allows for quick placement, and due to the weight of the quartz tube itself, the quartz tube does not move arbitrarily in the inclined state, making it safe and reliable.

[0010] Furthermore, the second placement component includes: A pad is fixedly mounted on the rear plate. The pad has multiple notches along the width of the trolley body for inserting a spray pipe. A baffle strip, which is detachably inserted into the pad, is used to prevent the spray pipe from disengaging from the notch.

[0011] Furthermore, there is an insertion space between the lower end of the rear plate and the bottom plate, and the two side plates are in a figure-eight position relationship, with the maximum distance between the two side plates directly below the rear plate.

[0012] In this technical solution, the insertion space allows the trolley body of the next turnover device to be inserted, so that the turnover devices can be stacked when not performing turnover work, occupying little space. The trolley body of the next turnover device is inserted from the maximum distance between the two side plates of the previous trolley body, which facilitates operation.

[0013] Furthermore, a limiting hole is provided on one of the side panels of each trolley body, away from the rear panel. A threaded hole is provided in the middle of the side panel, and a locking shaft is threaded into the threaded hole. One end of the locking shaft is rotatably connected to the limiting hole, and the other end is fixedly connected to the first gear. A threaded section is provided in the middle of the locking shaft. A drive hole is provided below the threaded hole on the side panel, and a drive shaft is rotatably connected into the drive hole. A cam is connected to one end of the drive shaft, and a second gear is connected to the other end of the drive shaft. A first toothed belt and a second toothed belt are provided on the front and back of the rack, respectively. The first toothed belt and the second toothed belt are offset from the length direction of the rack. The rack is slidably disposed in the side panel, and the first toothed belt and the second toothed belt mesh with the first gear and the second gear, respectively. A foot pedal perpendicular to the rack is also connected to the lower end of the rack.

[0014] In this technical solution, when the two trolley bodies are not stacked, the locking shaft is threaded into the side plate, and the head of the locking shaft away from the first gear end is retracted into the threaded hole. The drive shaft is rotatably connected to the drive hole, and the protruding section of the cam points away from the rear plate. The rack is located in approximately the middle position. When the trolley body of the rear turnover device is inserted into the trolley body of the front turnover device from the insertion space, pressing the foot pedal causes the rack to move down. Because the first toothed belt meshes with the first gear, it will cause the first gear to rotate, thereby causing the head of the locking shaft to be inserted into the limiting hole under the action of the threaded connection. At this time, the stacked state of the two trolley bodies is locked, and they will not be pulled apart during the movement and storage process. At this time, the foot pedal is at the lowest position. When the two trolley bodies need to be separated, lift the foot pedal upwards to move the rack upwards. The first toothed belt engages with the first gear, causing the locking shaft to rotate in the opposite direction. The head of the locking shaft retracts into the threaded hole, unlocking the stacked state of the two trolley bodies. Then, the rack continues to move upwards, engaging the second toothed belt with the second gear, rotating the drive shaft. This causes the protruding section of the cam on the drive shaft head to turn towards the rear plate. The protruding section then presses against the side plate of the rear trolley body, moving the trolley body backwards. This facilitates the separation of the two trolley bodies. This structure requires no additional motor or other power source; it only requires manual footwork to lock and unlock the stacked trolley bodies and provides pre-force for pulling a trolley body out of the front trolley body. The operation is simple, labor-saving, and quick.

[0015] Furthermore, a limiting block is provided on the side wall inside the side plate. The limiting block is used to limit the position of the rack moving up and down. When the lower end of the first toothed belt contacts the upper end of the limiting block, the stacked state of the two trolley bodies is locked. When the upper end of the foot pedal contacts the lower end of the limiting block, the stacked state of the two trolley bodies is unlocked and pre-pushed out.

[0016] In this technical solution, the limiting block allows the operator to accurately locate the locked position of the two trolley bodies in the stacked state and the unlocked and pre-pull-out position of the two trolley bodies in the stacked state during operation, which facilitates operation.

[0017] Furthermore, the base frame assembly includes: A vehicle underbody support, the top of which is connected to the base plate; The caster base plate is fixedly connected to the side of the vehicle undercarriage support away from the base plate, and a travel wheel is connected to the lower end of the caster base plate.

[0018] Furthermore, a placement groove is provided on the back of the rear panel for placing a backing plate.

[0019] In this technical solution, backplates of different specifications can be stored, and the appropriate backplate is selected according to the specifications of the quartz tube.

[0020] Furthermore, a handle is provided on the back of the rear panel.

[0021] Furthermore, the turnover method for the quartz tube turnover device includes: Take the cart, lift the foot pedal upwards to move the rack upwards to its limit position, unlocking the stacked state of the two cart bodies and preparing to push them out, then remove the rear cart body; Place the backing plate, select the backing plate from the placement slot, and insert both ends of the backing plate into the clamping slots of the two side plates respectively; To place the quartz product, place the lower end of the quartz tube on the base plate, with the outer circumference resting on the V-shaped inclined surface, push the spray tube into the notch of the pad, and then insert the stop bar. The material is unloaded after being moved around and transferred by pushing the trolley. Lock the cart so that the rack is at the middle height position. Insert the trolley body of the turnover device into the trolley body of the front turnover device from the insertion space. Then, step on the foot pedal to move the rack down to the limit position and lock the stacked state of the two trolley bodies.

[0022] The beneficial effects of this invention are: 1. The turnover device can be used for the turnover of quartz tubes and jet tubes, and can be installed vertically. It is not limited by the length of the tube. It can be washed and turned over while draining water to facilitate product testing. It has strong versatility.

[0023] 2. The lower end of the quartz tube is placed on the base plate, and the outer circumference is supported by the V-shaped inclined surface, so that the quartz tube is placed at a slight inclination to the vertical plane. This allows for quick placement, and due to the weight of the quartz tube, it will not move arbitrarily in the inclined state, making it safe and reliable.

[0024] 3. An insertion space allows the trolley body of the next turnover device to be inserted, so that the turnover devices can be stacked when not performing turnover work, taking up little space. The trolley body of the next turnover device is inserted from the maximum distance between the two side plates of the previous trolley body, which is convenient for operation.

[0025] 4. The rack and pinion assembly structure does not require an additional motor or other power source. It only requires manual footwork to lock and unlock the stacked trolley bodies and also provides pre-power for pulling the trolley body out from the previous trolley body. The operation is simple, labor-saving and quick.

[0026] 5. The limit block allows operators to accurately locate the locked position of the two trolley bodies in the stacked state and the unlocked and pre-pull-out position of the two trolley bodies in the stacked state during operation, which facilitates operation. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the invention from another angle; Figure 3 This is a side view of the present invention; Figure 4 This is a diagram showing the state of the invention after the quartz tube and the jet tube are installed; Figure 5 It is a state diagram of multiple turnover devices stacked together; Figure 6 yes Figure 5 Side view; Figure 7 yes Figure 6 Sectional view of part A in the middle; Figure 8 yes Figure 5 A magnified view of a section at point B in the middle; Figure 9 This is a 3D view of the rack and pinion assembly.

[0028] The markings in the diagram are as follows: 1. Cart body; 2. Side panel; 3. Rear panel; 4. Base plate; 5. Base frame assembly; 6. Quartz tube; 7. Injection pipe; 8. Clamping plate; 9. Clamping groove; 10. Backrest plate; 11. V-shaped ramp; 12. Pad block; 13. Notch; 14. Stop bar; 15. Insertion space; 16. Limiting hole; 17. Locking shaft; 18. First gear; 19. Threaded section; 22. Drive hole; 23. Threaded hole; 24. Drive shaft; 25. Cam; 26. Second gear; 27. First toothed belt; 28. Second toothed belt; 29. ​​Foot pedal; 30. Limiting block; 31. Cart base bracket; 32. Caster plate; 33. Traveling wheel; 34. Placement groove; 35. Handle. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0033] It should be noted that, in this application, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0034] Example 1: like Figure 1-4 As shown, a quartz tube 6-turnover device includes: The trolley body 1 includes two side panels 2, a rear panel 3 connecting the two side panels 2, a bottom plate 4 connecting the lower ends of the side panels 2, and a base frame assembly 5 fixedly connected to the bottom of the bottom plate 4. The first mounting component is used to vertically mount the quartz tube 6; The second mounting assembly is used to vertically mount the injection pipe 7.

[0035] The turnover device can be used for the turnover of quartz tubes 6 and spray tubes 7, and can be installed vertically. It is not limited by the length of the tubes. It can be washed and turned over while draining water to facilitate product testing. It is highly versatile.

[0036] The first placement component includes: Clamping plate 8, which is fixedly mounted on side plate 2, and clamping groove 9 is provided on clamping plate 8; The backing plate 10 is parallel to the base plate 4. The base plate 4 is inclined relative to the horizontal plane at an angle of less than or equal to 30°. The two ends of the backing plate 10 are respectively inserted into the clamping grooves 9 of the two side plates 2. The side of the backing plate 10 away from the rear plate 3 is provided with a V-shaped inclined surface 11V for the outer peripheral surface of the quartz tube 6 to lean against.

[0037] The lower end of the quartz tube 6 is placed on the base plate 4, and the outer circumference is supported by the V-shaped inclined surface 11V, which makes the quartz tube 6 slightly inclined to the vertical plane. It can be quickly installed, and due to the self-weight of the quartz tube 6, the quartz tube 6 will not move at will in the inclined state, which is safe and reliable.

[0038] The second mounting component includes: A pad 12 is fixedly mounted on the rear plate 3. Multiple notches 13 are provided on the pad 12 along the width direction of the trolley body 1. The notches 13 are used to insert the spray pipe 7. A baffle 14 is detachably inserted into the pad 12 and is used to prevent the spray pipe 7 from disengaging from the notch 13.

[0039] Example 2: like Figure 5-6 As shown, there is an insertion space 15 between the lower end of the rear plate 3 and the bottom plate 4. The two side plates 2 are positioned in a V-shape, with the maximum distance between the two side plates 2 directly below the rear plate 3. The insertion space 15 allows the trolley body 1 of the next turnover device to be inserted. In this way, the turnover devices can be stacked when not performing turnover work, occupying little space. The trolley body 1 of the next turnover device is inserted from the maximum distance between the two side plates 2 of the previous trolley body 1, which facilitates operation.

[0040] Example 3: like Figure 6-9 As shown, a limiting hole 16 is provided on one of the side plates 2 of each trolley body 1 at a position away from the rear plate 3. A threaded hole 23 is provided in the middle of the side plate 2. A locking shaft 17 is threadedly connected to the threaded hole 23. One end of the locking shaft 17 is rotatably connected to the limiting hole 16, and the other end is fixedly connected to the first gear 18. A threaded section 19 is provided in the middle section of the locking shaft 17. A drive hole 22 is provided on the lower side of the threaded hole 23 on the side plate 2. A drive shaft 24 is rotatably connected to the drive hole 22. A cam 25 is connected to one end of the drive shaft 24, and a second gear 26 is connected to the other end of the drive shaft 24. A first toothed belt 27 and a second toothed belt 28 are provided on the front and back of the rack, respectively. The first toothed belt 27 and the second toothed belt 28 are offset from the length direction of the rack. The rack is slidably disposed in the side plate 2, and the first toothed belt 27 and the second toothed belt 28 are meshed with the first gear 18 and the second gear 26, respectively. A foot pedal 29 perpendicular to the rack is also connected to the lower end of the rack.

[0041] When the two trolley bodies 1 are not stacked, the locking shaft 17 is threaded into the side plate 2, and the head of the locking shaft 17 away from the end of the first gear 18 is retracted into the threaded hole 23. The drive shaft 24 is rotatably connected into the drive hole 22, and the protruding section of the cam 25 points away from the rear plate 3. The rack is located in approximately the middle position. When the trolley body 1 of the rear turnover device is inserted into the trolley body 1 of the front turnover device through the insertion space 15, the foot pedal 29 is pressed down, causing the rack to move down. Because the first toothed belt 27 meshes with the first gear 18, it will cause the first gear 18 to rotate, thereby causing the head of the locking shaft 17 to be inserted into the limiting hole 16 under the action of the threaded connection. At this time, the stacked state of the two trolley bodies 1 is locked, and they will not be pulled apart during the movement and storage process. At this time, the foot pedal 29 is at the lowest position. When the two trolley bodies 1 need to be separated, lift the foot pedal 29 upwards to move the rack upwards. The first toothed belt 27 then engages with the first gear 18, causing the locking shaft 17 to rotate in the opposite direction. The head of the locking shaft 17 retracts into the threaded hole 23, thus unlocking the stacked state of the two trolley bodies 1. Then, the rack continues to move upwards, causing the second toothed belt 28 to engage with the second gear 26, rotating the drive shaft 24. This causes the protruding section of the cam 25 at the head of the drive shaft 24 to turn towards the rear plate 3. The protruding section then presses against the side plate 2 of the rear trolley body 1, causing the trolley body 1 to move backwards. This facilitates the separation of the two trolley bodies 1 from each other. This structure requires no additional power source such as a motor; it only requires manual footwork to lock and unlock the stacked state of the trolley bodies 1 and provides pre-force for pulling the trolley body 1 out of the front trolley body 1. The operation is simple, labor-saving, and quick.

[0042] A limiting block 30 is provided on the side wall inside the side plate 2. The limiting block 30 is used to limit the vertical movement of the rack. When the lower end of the first toothed belt 27 contacts the upper end of the limiting block 30, the two trolley bodies 1 are locked in a stacked state. When the upper end of the foot pedal 29 contacts the lower end of the limiting block 30, the two trolley bodies 1 are unlocked and pre-pushed out. The limiting block 30 allows the operator to accurately find the locked and unlocked / pre-pushed positions of the two trolley bodies 1 during operation, facilitating operation.

[0043] Example 4: like Figure 2 As shown, the base frame assembly 5 includes: The vehicle undercarriage support 31 is connected to the base plate 4 at its top. Caster base plate 4, which is fixedly connected to the side of the vehicle under bracket 31 away from the base plate 4, and a traveling wheel 33 is connected to the lower end of the caster base plate 4.

[0044] The back of the rear plate 3 is provided with a placement groove 34 for placing the backrest 10. It can store backrests 10 of different specifications, which can be selected according to the specifications of the quartz tube 6.

[0045] A handle 35 is provided on the back of the rear plate 3.

[0046] The turnover method of the quartz tube 6-turnover device includes: Take the cart, lift the foot pedal 29 upwards with your foot to move the rack upwards to the limit position, unlock the stacked state of the two cart bodies 1 and pre-push out, and remove the rear cart body 1; Place the backing plate 10, select the backing plate 10 from the placement slot 34, and insert the two ends of the backing plate 10 into the clamping slots 9 of the two side plates 2 respectively; Place the quartz product, place the lower end face of the quartz tube 6 on the base plate 4, and the outer peripheral surface rests on the V-shaped inclined surface 11V. Push the spray tube 7 into the notch 13 of the pad block 12, and then insert the stop bar 14. After unloading, the main body of the trolley is moved around and transferred; Lock the cart so that the rack is at the middle height position. Insert the trolley body 1 of the turnover device into the front trolley body 1 of the turnover device through the insertion space 15. Then step on the foot pedal 29 to move the rack down to the limit position so that the front and rear trolley bodies 1 are locked in a stacked state.

[0047] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A quartz tube turnover device, characterized in that... ,include: The trolley body (1) includes two side plates (2), a rear plate (3) is connected between the two side plates (2), a bottom plate (4) is connected to the lower end of the side plates (2), and a base frame assembly (5) is fixedly connected to the bottom of the bottom plate (4). First mounting component, the first mounting component is used to vertically mount the quartz tube (6); The second mounting assembly is used to vertically mount the injection pipe (7).

2. The quartz tube turnover device according to claim 1, characterized in that, The first placement component includes: A clamping plate (8) is fixedly mounted on a side plate (2), and a clamping groove (9) is provided on the clamping plate (8). The backing plate (10) is parallel to the bottom plate (4). The bottom plate (4) is inclined relative to the horizontal plane at an angle of less than or equal to 30°. The two ends of the backing plate (10) are respectively inserted into the clamping grooves (9) of the two side plates (2). The side of the backing plate (10) away from the rear plate (3) is provided with a V-shaped inclined surface (11V) for the outer peripheral surface of the quartz tube (6) to lean against.

3. A quartz tube turnover device according to claim 2, characterized in that, The second mounting component includes: A pad (12) is fixedly mounted on the rear plate (3). Multiple notches (13) are provided on the pad (12) along the width direction of the trolley body (1). The notches (13) are used to insert the spray pipe (7). A baffle (14) is detachably inserted into a pad (12) and is used to prevent the spray pipe (7) from disengaging from the notch (13).

4. A quartz tube turnover device according to claim 1, characterized in that, There is an insertion space (15) between the lower end of the rear plate (3) and the bottom plate (4). The two side plates (2) are in a figure-eight position relationship, and the distance between the two side plates (2) directly below the rear plate (3) is the maximum value.

5. A quartz tube turnover device according to claim 4, characterized in that, On one of the side plates (2) of each trolley body (1), a limiting hole (16) is provided at a position away from the rear plate (3). A threaded hole (23) is provided in the middle of the side plate (2). A locking shaft (17) is threadedly connected to the threaded hole (23). One end of the locking shaft (17) is rotatably connected to the limiting hole (16), and the other end is fixedly connected to the first gear (18). A threaded section (19) is provided in the middle section of the locking shaft (17). A drive hole (22) is provided below the threaded hole (23) on the side plate (2). A gear (18) is rotatably connected to the drive hole (22). A drive shaft (24) is connected to a cam (25) at one end and a second gear (26) at the other end. A first toothed belt (27) and a second toothed belt (28) are respectively provided on the front and back of the rack. The first toothed belt (27) and the second toothed belt (28) are offset from the length direction of the rack. The rack is slidably disposed in the side plate (2) and the first toothed belt (27) and the second toothed belt (28) mesh with the first gear (18) and the second gear (26) respectively. A foot pedal (29) perpendicular to the rack is also connected to the lower end of the rack.

6. A quartz tube turnover device according to claim 5, characterized in that, A limiting block (30) is provided on the side wall inside the side plate (2). The limiting block (30) is used to limit the position of the rack moving up and down. When the lower end of the first toothed belt (27) contacts the upper end of the limiting block (30), the two trolley bodies (1) are locked in a stacked state. When the upper end of the foot pedal (29) contacts the lower end of the limiting block (30), the two trolley bodies (1) are unlocked in a stacked state and are ready to be pushed out.

7. A quartz tube turnover device according to claim 1, characterized in that, The base frame assembly (5) includes: The bottom support (31) is connected to the bottom plate (4) at its top. Caster plate (32), the caster plate (32) is fixedly connected to the side of the vehicle under bracket (31) away from the base plate (4), and the lower end of the caster plate (32) is connected to a walking wheel (33).

8. A quartz tube turnover device according to claim 2, characterized in that, The back of the rear plate (3) is provided with a placement groove (34) for placing the back plate (10).

9. A quartz tube turnover device according to claim 1, characterized in that, The back panel (3) is provided with a handle (35) on its back.

10. A method for turning over a quartz tube turnover device, characterized in that, A quartz tube turnover device according to claim 5 includes the following steps: Take the cart, lift the foot pedal (29) upward with your foot to move the rack upward to the limit position, unlock the stacked state of the two cart bodies (1) and pre-push out, and remove the rear cart body (1). Place the quartz products on the trolley body (1) by placing the quartz tube (6) and the jet pipe (7); After unloading, the main body of the cart (1) is moved around and transferred. Lock the cart so that the rack is at the middle height position. Insert the trolley body (1) of the turnover device into the trolley body (1) of the front turnover device from the insertion space (15). Then step on the foot pedal (29) to move the rack down to the limit position so that the front and rear trolley bodies (1) are locked in a stacked state.

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