A graphite crucible that is easy to clamp

Abstract

The invention discloses a graphite crucible which is easy to clamp and relates to the technical field of crucibles. The crucible comprises a crucible body and a base fixedly installed at the bottom of the crucible body, the top of the crucible body is snap-connected with a crucible cover, and further comprises: a protective collar, which is sleeved on the lower outer part of the crucible body, a friction sleeve is fixedly connected to the outer side of the upper part of the crucible body, a protective component is arranged on the inner side of the protective collar, and a clamping component is arranged on the outer side of the lower part of the crucible body; a top edge, which is fixedly connected to the top of the friction sleeve, and a joint pipe is symmetrically installed on the outer side of the friction sleeve; the protective component comprises a groove, a vertical groove is provided in the middle part of the outer side of the crucible body, and a horizontal groove is provided on the outer side of the crucible body, so that the arc-shaped clamp surface is easy to adhere to debris, and is also directly affected by high temperature and is easy to be damaged, and the arc-shaped clamp needs to clamp the crucible all the time to realize the cooling of the crucible by the internal coolant, which has limitations when used.

Description

Technical Field

[0001] The invention relates to the technical field of crucibles, in particular to a graphite crucible which is easy to clamp. Background Art

[0002] A crucible is a cup-shaped vessel used in laboratories to heat solids at high temperatures. There are many types and specifications of crucibles. When used, they are not restricted by production scale, batch size, and type of smelting materials. They can be selected at will, have strong applicability, and can ensure the purity of the smelted material.

[0003] For example, a crucible that is convenient to move and cool and has a publication number of CN208223170U comprises a crucible body, a crucible body is arranged on the crucible body, a crucible groove is arranged in the crucible body, a fixed arc clamp is arranged on one side of the outside of the crucible body, the fixed arc clamp is fixedly connected to the crucible body by two fixing bolts, one end of the fixed arc clamp is provided with a connecting shaft, the other end of the fixed arc clamp is connected, the fixed arc clamp is connected to the movable arc clamp by the connecting shaft, the fixed arc clamp is arranged on the outside of the device body and connected to the movable arc clamp, and a cooling liquid tank is arranged in the movable arc clamp, so as to solve the existing The crucible in the prior art needs to be clamped with separate pliers or tweezers, which is complicated to operate and easy to slip. At the same time, it is difficult to cool the solid and liquid reagents in the crucible after the test. The utility model has a compact structure, is easy to use, and has practical functions. However, the arc clamp of the device is directly sleeved on the outside of the crucible, and debris is easily adhered to the surface. When the crucible needs to be heated as a whole, the arc clamp is directly exposed to high temperature and is easily damaged. It is inconvenient to use. In addition, when the arc clamp is used subsequently, the crucible needs to be clamped all the time to achieve internal cooling of the crucible, which has limitations in use.

[0004] Therefore, we propose a graphite crucible that is easy to clamp, so as to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a graphite crucible that is easy to clamp, so as to solve the problems that the curved pliers surface is easy to adhere to debris, is also directly affected by high temperature and is easy to be damaged, and the curved pliers need to clamp the crucible all the time to achieve internal cooling liquid to cool the crucible, which has limitations when used.

[0006] To achieve the above object, the present invention provides the following technical solution: a graphite crucible that is easy to clamp, comprising a crucible body and a base fixedly installed at the bottom of the crucible body, wherein the top of the crucible body is snap-connected with a crucible cover;

[0007] Also includes:

[0008] A protective collar is sleeved on the lower outer part of the crucible body, a friction sleeve is fixedly connected to the outer upper part of the crucible body, a protection component is arranged on the inner side of the protective collar, and a clamping component is arranged on the outer lower part of the crucible body;

[0009] A top edge is fixedly connected to the top of the friction sleeve, and a joint pipe is symmetrically installed on the outer side of the friction sleeve;

[0010] The protection component includes a groove, the groove is provided at the lower part of the outer side of the crucible body, a vertical groove is provided at the middle part of the outer side of the crucible body, a horizontal groove is provided at the outer side of the crucible body, the horizontal groove is connected with the vertical groove, the horizontal groove is located at one side of the vertical groove, a sliding block is fixedly connected to the inner side of the protection collar, the sliding block is slidably connected with the vertical groove, and the sliding block is slidably connected with the horizontal groove;

[0011] The clamping assembly includes a clamping rod and an end block, the clamping rod is located on the inner side of the groove, two clamping rods are provided, the two clamping rods are rotatably connected, a cavity is opened inside the clamping rod, a mounting side plate is symmetrically fixed on the inner side of the clamping rod, the inner side of the mounting side plate is rotatably connected to the main rotating shaft, the outer side of the main rotating shaft is fixedly connected to a connecting plate, and one side of the connecting plate is fixedly connected to a mounting block;

[0012] A connecting rod is rotatably connected to the inner side of the mounting block, and the end of the connecting rod away from the mounting block is connected to a fixed block, one side of the fixed block is fixedly connected to a sealing block, a sealing groove is provided on the side of the clamping rod close to the sealing block, a connecting groove is provided inside the sealing block, a connecting pipe is connected to the side of the sealing block away from the clamping rod, and one side of the connecting pipe is connected to an inclined pipe.

[0013] Preferably, the protective collar is slidably connected to the crucible body, the vertical grooves are vertically opened, the vertical grooves are circumferentially arranged, the vertical grooves are not less than three, and the number of the horizontal grooves matches the number of the vertical grooves.

[0014] By adopting the above technical solution, a protection component is provided, and the operator can slide up the protection collar to facilitate the taking and use of the clamping rod. After use, the protection collar blocks and protects the clamping rod again, reducing damage to the clamping rod.

[0015] Preferably, a positioning groove is provided on the outer side of the protective collar, the end block is located on the inner side of the positioning groove, the sliding blocks are provided in an array, and the number of the sliding blocks matches the vertical groove.

[0016] By adopting the above technical solution, the protective ring is slid up, which drives the sliding block to move up, and the sliding block slides inside the vertical groove until the sliding block fits with the inner top surface of the vertical groove. Then the protective ring is rotated clockwise, and the protective ring drives the sliding block to rotate horizontally, so that the sliding block rotates from the vertical groove to the horizontal groove. At this time, the sliding block is stuck in the horizontal groove, which is convenient for taking and using the clamping rod.

[0017] Preferably, the end block is located at one end of the clamping rod, the clamping rod is arranged in an arc shape, and a return spring is installed on the inner side of the two end blocks, and the two ends of the return spring are respectively fixedly connected to the two end blocks.

[0018] By adopting the above technical solution, by pressing the end block, the end block squeezes the reset spring and drives the two clamping rods to unfold, thereby facilitating the removal of the clamping rods from the groove.

[0019] Preferably, the main shaft is symmetrically arranged in the upper and lower parts, two connecting plates are provided, the two connecting plates are located on the inner side of the mounting side plate, the connecting rod is rotatably connected to the fixed block, and the sealing block is snap-connected to the sealing groove.

[0020] By adopting the above technical solution, the abutment wheel is pressed against the outer side of the friction sleeve, so that the magnets of the inclined tube and the joint tube are attracted to each other, and the side plate is installed to limit the connecting plate, so that the two abutment wheels are close to the center, and the connecting plate rotates around the main shaft. The rotation of the connecting plate drives the connecting rod to rotate, so that the connecting rod pulls the sealing block to move, and the sealing block is separated from the sealing groove. At this time, the cavity is connected to the connecting groove.

[0021] Preferably, an abutment wheel is installed on the side of the connecting plate away from the mounting block, the abutment wheel is rotatably connected to the connecting plate, the abutment wheel is located on the outer side of the mounting side plate, the abutment wheel is symmetrically arranged up and down, and there are no less than two abutment wheels.

[0022] By adopting the above technical solution, the rotation of the connecting plate can pull the connecting rod to rotate, which facilitates the separation of the sealing block from the sealing groove. The coolant is output through the connecting groove, and then passes through the connecting pipe and the inclined pipe in turn, so that the coolant flows into the joint pipe through the inclined pipe.

[0023] Preferably, the communicating grooves are symmetrically opened, the communicating grooves are inclinedly arranged, one end of the communicating grooves is connected to the cavity, and the other end of the communicating grooves is connected to the connecting pipe.

[0024] By adopting the above technical solution, the coolant flows into the inner cavity of the friction sleeve, which is convenient for cooling the friction sleeve and the crucible body. After the clamping rod is released, the coolant can still cool the crucible body, thereby improving the convenience of use.

[0025] Preferably, the connecting pipe is connected to the inclined pipe, the inclined pipe is arranged obliquely, the inclined pipe is located between the two connecting plates, and the connecting pipe is located between the two connecting rods.

[0026] By adopting the above technical solution, the inclined setting of the inclined tube facilitates the diversion of the internal coolant.

[0027] Preferably, a first magnet is connected to the outer side of one end of the inclined tube away from the connecting tube, a second magnet is connected to the outer side of the connecting tube, and the first magnet is attracted to the second magnet.

[0028] By adopting the above technical solution, the magnets 1 and 2 of the inclined tube and the joint tube are adsorbed, thereby improving the convenience of positioning.

[0029] Compared with the prior art, the invention has the following beneficial effects: a protective assembly is provided, and the operator can slide up the protective collar to facilitate the use of the clamping rod. After use, the protective collar blocks and protects the clamping rod again, thereby reducing damage to the clamping rod.

[0030] 1. A protection component is provided. After the high-temperature processing of the crucible body is completed, the operator slides up the protective collar, which drives the sliding block to move up. The sliding block slides inside the vertical groove until the sliding block fits with the inner top surface of the vertical groove. Then the protective collar is rotated clockwise, and the protective collar drives the sliding block to rotate horizontally, so that the sliding block rotates from the vertical groove to the horizontal groove. At this time, the sliding block is stuck in the horizontal groove, which is convenient for taking and using the clamping rod. Similarly, after use, the protective collar is operated in the reverse direction, so that the protective collar blocks and protects the clamping rod again, reducing the damage to the clamping rod and solving the problem that the arc-shaped clamp surface is easy to adhere to debris and is directly affected by high temperature and is more easily damaged.

[0031] 2. A clamping assembly is provided. By pressing the end block, the end block squeezes the reset spring and drives the two clamping rods to expand, so that the clamping rod is easily removed from the groove. Then the clamping rod is sleeved on the outside of the friction sleeve, and the end block is pressed to adjust the size between the two clamping rods, so that the abutment wheel is pressed against the outside of the friction sleeve, so that the magnets of the inclined tube and the joint tube are adsorbed, and the side plate is installed to limit the connection plate, so that the two abutment wheels are close to the center, and the connection plate rotates with the main shaft as the axis. The rotation of the connection plate drives the connecting rod to rotate, so that the connecting rod pulls the seal The block moves, and the sealing block is separated from the sealing groove. At this time, the cavity is connected with the connecting groove, and the coolant is output through the connecting groove, and then passes through the guide of the connecting pipe and the inclined pipe in sequence. Since the inclined pipe is inclined, the coolant flows into the joint pipe through the inclined pipe, and finally flows into the inner cavity of the friction sleeve, which is convenient for cooling the friction sleeve and the crucible body. After the clamping rod is released, the coolant can still cool the crucible body, which improves the convenience of use and solves the problem that the arc pliers need to clamp the crucible all the time to realize the cooling of the crucible by the internal coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional overall structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the overall explosion structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the cross-sectional structure of the protective sleeve ring of the present invention;

[0035] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0036] Figure 5 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0037] Figure 6 It is a schematic diagram of the cross-sectional structure of the clamping rod of the present invention;

[0038] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0039] Figure 8 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0040] Fig. 9 This is a schematic diagram of the cross-sectional structure of the sealing block of the present invention;

[0041] Fig.10 This is a schematic diagram of clamping the clamping rod of the present invention.

[0042] In the figure: 1. crucible body; 2. base; 3. crucible cover; 4. protective collar; 5. friction sleeve; 6. protection assembly; 61. groove; 62. vertical groove; 63. horizontal groove; 64. sliding block; 65. positioning groove; 7. clamping assembly; 71. clamping rod; 72. end block; 73. reset spring; 74. cavity; 75. mounting side plate; 76. main shaft; 77. connecting plate; 78. mounting block; 79. connecting rod; 710. fixing block; 711. sealing block; 712. sealing groove; 713. abutting wheel; 714. connecting groove; 715. connecting pipe; 716. inclined pipe; 8. top edge; 9. joint pipe. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0044] See also Figure 1-Figure 10 The present invention provides a technical solution: a graphite crucible that is easy to clamp, comprising a crucible body 1 and a base 2 fixedly installed at the bottom of the crucible body 1, and a crucible cover 3 is snap-connected to the top of the crucible body 1;

[0045] A protective collar 4 is sleeved on the lower outer portion of the crucible body 1, and a friction sleeve 5 is fixedly connected to the outer upper portion of the crucible body 1;

[0046] The top edge 8 is fixedly connected to the top of the friction sleeve 5, and the outer side of the friction sleeve 5 is symmetrically mounted with a joint pipe 9;

[0047] A protective assembly 6 is provided on the inner side of the protective collar 4, and the protective assembly 6 includes a groove 61, which is opened at the lower outer part of the crucible body 1, a vertical groove 62 is opened in the middle of the outer side of the crucible body 1, and a transverse groove 63 is opened on the outer side of the crucible body 1, and the transverse groove 63 is connected to the vertical groove 62, and the transverse groove 63 is located on one side of the vertical groove 62, and a sliding block 64 is fixedly connected to the inner side of the protective collar 4, and the sliding block 64 is slidably connected to the vertical groove 62, and the sliding block 64 is slidably connected to the transverse groove 63.

[0048] The protective collar 4 is slidably connected to the crucible body 1 . The vertical grooves 62 are vertically opened and arranged circumferentially. There are no less than three vertical grooves 62 , and the number of the transverse grooves 63 matches that of the vertical grooves 62 .

[0049] A positioning groove 65 is provided on the outer side of the protective collar 4 , and the end block 72 is located on the inner side of the positioning groove 65 . The sliding blocks 64 are provided in an array, and the number of the sliding blocks 64 matches the vertical groove 62 .

[0050] Embodiment 1: Figure 1-Figure 4 As shown, a protection component 6 is provided. After the high-temperature processing of the crucible body 1 is completed, the operator slides up the protection collar 4, and the protection collar 4 drives the sliding block 64 to move up. The sliding block 64 slides inside the vertical groove 62 until the sliding block 64 fits with the inner top surface of the vertical groove 62. Then, the protection collar 4 is rotated clockwise, and the protection collar 4 drives the sliding block 64 to rotate horizontally, so that the sliding block 64 rotates from the vertical groove 62 to the horizontal groove 63. At this time, the sliding block 64 is stuck in the horizontal groove 63, so as to facilitate the taking and use of the clamping rod 71.

[0051] After use, the protective collar 4 is operated in reverse so that the protective collar 4 blocks and protects the clamping rod 71 again, reducing damage to the clamping rod 71 and solving the problem that the arc-shaped clamp surface is easily adhered to debris and is directly affected by high temperature and is easily damaged.

[0052] A clamping assembly 7 is provided on the outer side of the lower part of the crucible body 1. The clamping assembly 7 includes a clamping rod 71 and an end block 72. The clamping rod 71 is located on the inner side of the groove 61. Two clamping rods 71 ​​are provided. The two clamping rods 71 ​​are rotatably connected. A cavity 74 is provided inside the clamping rod 71. A mounting side plate 75 is symmetrically fixed on the inner side of the clamping rod 71. A main shaft 76 is rotatably connected to the inner side of the mounting side plate 75. A connecting plate 77 is fixedly connected to the outer side of the main shaft 76. A mounting block 78 is fixedly connected to one side of the connecting plate 77.

[0053] The end block 72 is located at one end of the clamping rod 71 . The clamping rod 71 is arc-shaped. Return springs 73 are installed on the inner sides of the two end blocks 72 . The two ends of the return spring 73 are fixedly connected to the two end blocks 72 .

[0054] A connecting rod 79 is rotatably connected to the inner side of the mounting block 78, and the end of the connecting rod 79 away from the mounting block 78 is connected to a fixed block 710, and a sealing block 711 is fixedly connected to one side of the fixed block 710. A sealing groove 712 is provided on the side of the clamping rod 71 close to the sealing block 711, and a connecting groove 714 is provided inside the sealing block 711. A connecting pipe 715 is connected to the side of the sealing block 711 away from the clamping rod 71, and an inclined pipe 716 is connected to one side of the connecting pipe 715.

[0055] The main shaft 76 is symmetrically arranged in the upper and lower parts. Two connecting plates 77 are arranged. The two connecting plates 77 are located on the inner side of the mounting side plate 75 . The connecting rod 79 is rotatably connected to the fixing block 710 . The sealing block 711 is engaged with the sealing groove 712 .

[0056] An abutment wheel 713 is installed on one side of the connecting plate 77 away from the mounting block 78. The abutment wheel 713 is rotatably connected to the connecting plate 77 and is located on the outer side of the mounting side plate 75. The abutment wheel 713 is symmetrically arranged up and down, and there are no less than two abutment wheels 713.

[0057] The connecting groove 714 is symmetrically arranged and inclined. One end of the connecting groove 714 is connected to the cavity 74 , and the other end of the connecting groove 714 is connected to the connecting pipe 715 .

[0058] The connecting pipe 715 is connected to the inclined pipe 716 . The inclined pipe 716 is inclined. The inclined pipe 716 is located between the two connecting plates 77 . The connecting pipe 715 is located between the two connecting rods 79 .

[0059] The outer side of one end of the inclined tube 716 away from the connecting tube 715 is connected to a magnet 1, and the outer side of the connecting tube 9 is connected to a magnet 2, and the magnet 1 is attracted to the magnet 2.

[0060] Embodiment 2: Figure 5-Figure 10As shown, a clamping assembly 7 is provided. By pressing the end block 72, the end block 72 squeezes the return spring 73 and drives the two clamping rods 71 ​​to expand, thereby facilitating the removal of the clamping rod 71 from the groove 61. Then, the clamping rod 71 is sleeved on the outside of the friction sleeve 5, and the end block 72 is pressed to adjust the size between the two clamping rods 71, so that the abutment wheel 713 is pressed against the outside of the friction sleeve 5, so that the inclined tube 716 and the magnet of the joint tube 9 are attracted, and the side plate 75 is installed to limit the connecting plate 77, so that the two abutment wheels 713 are close to the center, and the connecting plate 77 rotates around the main shaft 76. The rotation of the connecting plate 77 drives the connecting rod 79 to rotate, so that the connecting rod 79 pulls the sealing block 711 to move, and the sealing block 711 is separated from the sealing groove 712.

[0061] At this time, the cavity 74 is connected with the connecting groove 714, and the coolant is output through the connecting groove 714, and then passes through the connecting pipe 715 and the inclined pipe 716 in turn. Due to the inclined setting of the inclined pipe 716, the coolant flows into the joint pipe 9 through the inclined pipe 716, and finally flows into the inner cavity of the friction sleeve 5, which is convenient for cooling the friction sleeve 5 and the crucible body 1. After the clamping rod 71 is released, the coolant can still cool the crucible body 1, which improves the convenience of use and solves the problem that the arc pliers need to clamp the crucible all the time to realize the cooling of the crucible by the internal coolant.

[0062] Working principle: When using the device, first, Figure 1-Figure 10 As shown, after the high-temperature processing of the crucible body 1 is completed, the operator slides up the protective collar 4, and the protective collar 4 drives the sliding block 64 to move up. The sliding block 64 slides inside the vertical groove 62 until the sliding block 64 fits with the inner top surface of the vertical groove 62. Then, the protective collar 4 is rotated clockwise, and the protective collar 4 drives the sliding block 64 to rotate horizontally, so that the sliding block 64 rotates from the vertical groove 62 to the transverse groove 63. At this time, the sliding block 64 is stuck in the transverse groove 63, which facilitates the taking and use of the clamping rod 71. Similarly, after use, the protective collar 4 is operated in the reverse direction, so that the protective collar 4 blocks and protects the clamping rod 71 again, thereby reducing damage to the clamping rod 71.

[0063] By pressing the end block 72, the end block 72 squeezes the return spring 73 and drives the two clamping rods 71 ​​to expand, so that it is easy to remove the clamping rod 71 from the groove 61. Then, the clamping rod 71 is sleeved on the outside of the friction sleeve 5, and the end block 72 is pressed to adjust the size between the two clamping rods 71, so that the abutment wheel 713 is pressed against the outside of the friction sleeve 5, so that the inclined tube 716 is adsorbed with the magnet of the joint tube 9.

[0064] The side plate 75 is installed to limit the connecting plate 77 so that the two abutting wheels 713 approach the center, and the connecting plate 77 rotates around the main shaft 76. The rotation of the connecting plate 77 drives the connecting rod 79 to rotate, so that the connecting rod 79 pulls the sealing block 711 to move, and the sealing block 711 is separated from the sealing groove 712. At this time, the cavity 74 is connected with the connecting groove 714, and the coolant is output through the connecting groove 714, and then passes through the connecting pipe 715 and the inclined pipe 716 in turn.

[0065] Due to the inclined setting of the inclined tube 716, the coolant flows into the joint tube 9 through the inclined tube 716 and finally flows into the inner cavity of the friction sleeve 5, which is convenient for cooling the friction sleeve 5 and the crucible body 1. After the clamping rod 71 is released, the coolant can still cool the crucible body 1.

[0066] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0067] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A graphite crucible that is easy to clamp, comprising a crucible body (1) and a base (2) fixedly mounted on the bottom of the crucible body (1), wherein a crucible cover (3) is snap-fitted to the top of the crucible body (1); It is characterized in that Also includes: A protective collar (4) is sleeved on the lower outer portion of the crucible body (1); a friction sleeve (5) is fixedly connected to the outer upper portion of the crucible body (1); a protective component (6) is provided on the inner side of the protective collar (4); and a clamping component (7) is provided on the outer lower portion of the crucible body (1); A top edge (8) is fixedly connected to the top of the friction sleeve (5), and a joint pipe (9) is symmetrically mounted on the outer side of the friction sleeve (5); The protection component (6) comprises a groove (61), the groove (61) is provided at the lower part of the outer side of the crucible body (1), a vertical groove (62) is provided at the middle part of the outer side of the crucible body (1), a horizontal groove (63) is provided at the outer side of the crucible body (1), the horizontal groove (63) is connected to the vertical groove (62), the horizontal groove (63) is located on one side of the vertical groove (62), a sliding block (64) is fixedly connected to the inner side of the protection collar (4), the sliding block (64) is slidably connected to the vertical groove (62), and the sliding block (64) is slidably connected to the horizontal groove (63); The clamping assembly (7) comprises a clamping rod (71) and an end block (72), the clamping rod (71) being located on the inner side of the groove (61), two clamping rods (71) being provided, the two clamping rods (71) being rotatably connected, a cavity (74) being provided inside the clamping rod (71), a mounting side plate (75) being symmetrically fixed on the inner side of the clamping rod (71), a main rotating shaft (76) being rotatably connected on the inner side of the mounting side plate (75), a connecting plate (77) being fixedly connected to the outer side of the main rotating shaft (76), and a mounting block (78) being fixedly connected to one side of the connecting plate (77); A connecting rod (79) is rotatably connected to the inner side of the mounting block (78); an end of the connecting rod (79) away from the mounting block (78) is connected to a fixing block (710); a sealing block (711) is fixedly connected to one side of the fixing block (710); a sealing groove (712) is provided on a side of the clamping rod (71) close to the sealing block (711); a connecting groove (714) is provided inside the sealing block (711); a connecting pipe (715) is connected to a side of the sealing block (711) away from the clamping rod (71); and an inclined pipe (716) is connected to one side of the connecting pipe (715).

2. The graphite crucible that is easy to clamp according to claim 1, characterized in that: The protective collar (4) is slidably connected to the crucible body (1); the vertical grooves (62) are vertically opened, the vertical grooves (62) are arranged circumferentially, the number of the vertical grooves (62) is not less than three, and the number of the transverse grooves (63) matches the number of the vertical grooves (62).

3. The graphite crucible that is easy to clamp according to claim 1, characterized in that: A positioning groove (65) is provided on the outer side of the protective collar (4), the end block (72) is located on the inner side of the positioning groove (65), and the sliding blocks (64) are provided in an array, and the number of the sliding blocks (64) matches the vertical groove (62).

4. The graphite crucible that is easy to clamp according to claim 1, characterized in that: The end block (72) is located at one end of the clamping rod (71), and the clamping rod (71) is arranged in an arc shape. A return spring (73) is installed on the inner side of the two end blocks (72), and the two ends of the return spring (73) are respectively fixedly connected to the two end blocks (72).

5. The graphite crucible that is easy to clamp according to claim 1, characterized in that: The main rotating shaft (76) is symmetrically arranged in the upper and lower parts, two connecting plates (77) are provided, and the two connecting plates (77) are located on the inner side of the mounting side plate (75). The connecting rod (79) is rotatably connected to the fixing block (710), and the sealing block (711) is engaged and connected to the sealing groove (712).

6. The graphite crucible that is easy to clamp according to claim 1, characterized in that: An abutment wheel (713) is installed on one side of the connecting plate (77) away from the mounting block (78); the abutment wheel (713) is rotatably connected to the connecting plate (77); the abutment wheel (713) is located outside the mounting side plate (75); the abutment wheels (713) are symmetrically arranged up and down; and there are no less than two abutment wheels (713).

7. The graphite crucible that is easy to clamp according to claim 1, characterized in that: The communicating grooves (714) are symmetrically arranged, and the communicating grooves (714) are inclined. One end of the communicating grooves (714) is connected to the cavity (74), and the other end of the communicating grooves (714) is connected to the connecting pipe (715).

8. The graphite crucible that is easy to clamp according to claim 7, characterized in that: The connecting tube (715) is connected to the inclined tube (716); the inclined tube (716) is arranged at an angle; the inclined tube (716) is located between the two connecting plates (77); and the connecting tube (715) is located between the two connecting rods (79).

9. The graphite crucible that is easy to clamp according to claim 8, characterized in that: A first magnet is connected to the outer side of one end of the inclined tube (716) away from the connecting tube (715), and a second magnet is connected to the outer side of the connecting tube (9), and the first magnet is attracted to the second magnet.

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