Thermal digestion sealing cover

Abstract

The utility model provides a thermal digestion sealing cover, which relates to the field of thermal digestion pipe covers and comprises a cover body covering the open end of a thermal digestion pipe, a vent hole is formed in the center of the outer end surface of the cover body, a cover plate is arranged on the vent hole, a rubber sleeve is arranged at the lower end of the circumferential surface of the cover body, and the rubber sleeve is elastic and can be turned up and down. A trumpet-shaped through pipe is arranged in the center of the inner end face of the cover body, the small opening end of the through pipe faces the thermal desorption pipe, the large opening end of the through pipe faces upwards and is communicated with a vent hole, the vent hole is formed in the center of the outer end face of the cover body, a cover plate is arranged on the vent hole, and the pressure inside and outside the thermal desorption pipe can be balanced by opening and closing the cover plate; a rubber sleeve is arranged at the lower end of the circumferential surface of the cover body, is elastic and can be turned up and down, and when the cover body covers the heat digestion pipe, the rubber sleeve is turned down, so that the sealing performance is improved; the horn-shaped through pipe is arranged in the center of the inner end face of the cover body, and the small opening end of the through pipe faces the hot removal pipe, so that splashing is effectively prevented, and ventilation is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal digestion tube covers, in particular to a thermal digestion sealing cover. Background Art

[0002] When testing the content of trace elements in tissue samples, the tissue samples need to be digested first. Usually nitric acid and hydrogen peroxide are used as digestion solutions and digested at high temperature. During the thermal digestion process, nitric acid evaporates and the sealing of the digestion tube cover is poor, which is prone to splashing, causing safety hazards and affecting the test results.

[0003] The focus of this case is to design a reusable digestion tube cover to achieve a sealing effect and balance the pressure inside and outside the digestion tube after the digestion is completed and cooled to prevent splashing. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a thermal digestion sealing cover, which solves the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a thermal digestion sealing cover, including a cover body, which covers the open end of the thermal digestion tube: a vent hole is opened in the center of the outer end surface of the cover body, a cover plate is arranged on the vent hole, a rubber sleeve is arranged at the lower end of the circumferential surface of the cover body, the rubber sleeve is elastic and can be flipped up and down, a trumpet-shaped through pipe is arranged in the center of the inner end surface of the cover body, the small opening end of the through pipe faces the thermal digestion tube, and the large opening end of the through pipe faces upward and is connected with the vent hole.

[0008] Preferably, the through tube is detachably connected to the inner end surface of the cover body, a group of circular plates are provided on the large opening end of the through tube, and a pair of brackets are correspondingly provided on the inner end surface of the cover body. The through tube is rotated to buckle a group of circular plates on the brackets.

[0009] Preferably, a groove is provided on the vent hole, a protective net is provided on the vent hole, the cover plate is accommodated in the groove, one end of the cover plate is hinged in the groove, and a fixing pin is provided at the other end, and a corresponding positioning hole is provided on the upper end surface of the cover body. When the cover plate is closed on the vent hole, the fixing pin is inserted into the positioning hole.

[0010] Preferably, a lift plate is provided at one end of the cover plate for opening the cover plate.

[0011] Preferably, it also includes a pipe sleeve, a connecting bolt, a bolt sleeve, and a connecting rope. The pipe sleeve is sleeved on the tube body of the thermal digestion tube, the connecting bolt is fixed on the cover body, and the connecting rope connects the pipe sleeve and the bolt sleeve respectively. When the cover body is detached from the thermal digestion tube, the bolt sleeve is sleeved on the connecting bolt.

[0012] Preferably, a plurality of round strips are arranged on the outer circumference of the cover body.

[0013] Preferably, the cover is threadedly connected to the open end of the thermal digestion tube.

[0014] (III) Beneficial effects

[0015] The utility model provides a thermal digestion sealing cover, which has the following beneficial effects:

[0016] 1. The thermal digestion sealing cover has a vent hole at the center of the outer end surface of the cover body, and a cover plate is arranged on the vent hole. Opening and closing the cover plate can balance the pressure inside and outside the digestion tube; a rubber sleeve is arranged at the lower end of the circumferential surface of the cover body. The rubber sleeve is elastic and can be turned up and down. When the cover body is closed on the thermal digestion tube, the rubber sleeve is turned down to improve the sealing performance; a trumpet-shaped through pipe is arranged at the center of the inner end surface of the cover body, and the small opening end of the through pipe faces the thermal digestion tube, which effectively prevents splashing but does not affect ventilation.

[0017] 2. The thermal digestion sealing cover has a group of circular plates at the large opening end of the through pipe, and a pair of brackets are provided on the inner end surface of the corresponding cover body. The through pipe is rotated to buckle the group of circular plates on the brackets, and the through pipe is detachably connected to the inner end surface of the cover body, which is convenient for disassembly of the through pipe, and the cover body and the through pipe can be cleaned separately and reused, which is green and environmentally friendly.

[0018] 3. The thermal digestion sealing cover comprises a tube sleeve, a connecting bolt, a bolt sleeve and a connecting rope. The tube sleeve is sleeved on the tube body of the thermal digestion tube, the connecting bolt is fixed on the cover body, and the connecting rope connects the tube sleeve and the bolt sleeve respectively. When the cover body is separated from the thermal digestion tube, the bolt sleeve is sleeved on the connecting bolt, so that the cover body is not randomly placed and lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 The cover and through-tube structure of the utility model are shown in FIG. Figure 1 ;

[0022] Figure 4 The cover and through-tube structure of the utility model are shown in FIG. Figure 2 .

[0023] In the figure: 1. cover body; 2. thermal digestion tube; 3. vent hole; 4. cover plate; 5. rubber sleeve; 6. through pipe; 7. round plate; 8. bracket; 9. groove; 10. protective net; 11. fixing pin; 12. positioning hole; 13. lifting plate; 14. pipe sleeve; 15. connecting bolt; 16. bolt sleeve; 17. connecting rope; 18. round bar. DETAILED DESCRIPTION

[0024] The utility model embodiment provides a thermal digestion sealing cover, such as Figure 1-4 As shown, it includes a cover body 1, which covers the open end of the thermal digestion tube 2: a vent hole 3 is opened in the center of the outer end surface of the cover body 1, and a cover plate 4 is arranged on the vent hole 3. A rubber sleeve 5 is arranged at the lower end of the circumferential surface of the cover body 1. The rubber sleeve 5 is elastic and can be turned up and down. A trumpet-shaped through pipe 6 is arranged in the center of the inner end surface of the cover body 1. The small opening end of the through pipe 6 faces the thermal digestion tube 2, and the large opening end of the through pipe 6 faces upward and is connected with the vent hole 3.

[0025] like Figure 3 and 4 As shown, the through pipe 6 is detachably connected to the inner end surface of the cover body 1, a group of circular plates 7 are provided at the large open end of the through pipe 6, and a pair of brackets 8 are correspondingly provided on the inner end surface of the cover body 1. The through pipe 6 is rotated to buckle a group of circular plates 7 onto the brackets 8.

[0026] like Figure 3 As shown, a groove 9 is provided on the vent hole 3, a protective net 10 is provided on the vent hole 3, the cover plate 4 is accommodated in the groove 9, one end of the cover plate 4 is hinged in the groove 9, and a fixing pin 11 is provided at the other end. A positioning hole 12 is provided on the upper end surface of the corresponding cover body 1. When the cover plate 4 covers the vent hole 3, the fixing pin 11 is inserted into the positioning hole 12.

[0027] like Figure 2 and 3 As shown, a lift plate 13 is provided at one end of the cover plate 4, and the cover plate 4 can be lifted with a fingernail.

[0028] like Figure 1 and 2 As shown, it also includes a pipe sleeve 14, a connecting bolt 15, a bolt sleeve 16, and a connecting rope 17. The pipe sleeve 14 is sleeved on the tube body of the thermal digestion tube, the connecting bolt 15 is fixed on the cover body 1, and the connecting rope 17 connects the pipe sleeve 14 and the bolt sleeve 16 respectively. When the cover body 1 is separated from the thermal digestion tube, the bolt sleeve 16 is sleeved on the connecting bolt 15 to prevent the cover body 1 from being lost.

[0029] like Figure 1 As shown, a plurality of round bars 18 are arranged on the outer circumference of the cover body 1 to increase the friction force of the circumferential surface of the cover body 1 .

[0030] One of the connection modes between the cover body 1 and the thermal digestion tube is that the cover body 1 is most commonly connected to the open end of the thermal digestion tube through a thread, which has good sealing performance.

[0031] Working principle: When the thermal digestion sealing cover is used, the tissue sample is placed in the thermal digestion tube, and the digestion is performed passively. The cover body 1 with the through pipe 6 installed is screwed into the open end of the thermal digestion tube, and the rubber sleeve 5 is turned down. The rubber sleeve 5 is wrapped around the tube body of the thermal digestion tube to improve the sealing performance. The cover plate 4 is closed, and splashing occurs. After the digestion is completed and cooled, the cover plate 4 is opened. After the digestion is completed and cooled, the gas inside and outside the thermal digestion tube can flow through the through pipe 6 and the vent hole 3. The through pipe 6 is set larger at the top and smaller at the bottom, which can prevent splashing;

[0032] Finally, after opening the cover 1, put the tube sleeve 14 on the tube body of the thermal digestion tube, put the bolt sleeve 16 on the connecting bolt 15 on the cover 1, and hang the cover 1 on the thermal digestion tube to prevent the cover 1 from being lost due to misplacement.

[0033] When cleaning is required, the through-tube 6 is rotated to be removed from the inner end surface of the cover body 1, and the cover body 1 and the through-tube 6 are rinsed separately. After cleaning, they can be installed and used again.

[0034] In summary, the thermal digestion sealing cover has an air vent 3 at the center of the outer end surface of the cover body 1, and a cover plate 4 is arranged on the air vent 3. Opening and closing the cover plate 4 can balance the pressure inside and outside the digestion tube; a rubber sleeve 5 is arranged at the lower end of the circumferential surface of the cover body 1. The rubber sleeve 5 is elastic and can be flipped up and down. When the cover body 1 is covered on the thermal digestion tube, the rubber sleeve 5 is flipped down to improve the sealing performance; a trumpet-shaped through-tube 6 is arranged at the center of the inner end surface of the cover body 1, and the small opening end of the through-tube 6 faces the thermal digestion tube 2, which effectively prevents splashing but does not affect ventilation; the thermal digestion sealing cover has a group of circular plates 7 at the large opening end of the through-tube 6, and a pair of brackets 8 are arranged on the corresponding inner end surface of the cover body 1 The through-tube 6 is rotated to buckle a group of circular plates 7 on the bracket 8. The through-tube 6 is detachably connected to the inner end surface of the cover body 1, which is convenient for disassembly of the through-tube 6. The cover body 1 and the through-tube 6 can be cleaned and reused respectively, which is green and environmentally friendly. The thermal digestion sealing cover includes a pipe sleeve 14, a connecting bolt 15, a bolt sleeve 16, and a connecting rope 17. The pipe sleeve 14 is sleeved on the pipe body of the thermal digestion tube, the connecting bolt 15 is fixed on the cover body 1, and the connecting rope 17 connects the pipe sleeve 14 and the bolt sleeve 16 respectively. When the cover body 1 is separated from the thermal digestion tube, the bolt sleeve 16 is sleeved on the connecting bolt 15, so that the cover body 1 is not randomly placed and caused to be lost.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal digestion sealing cover, comprising a cover body (1), which covers the open end of a thermal digestion tube (2), and is characterized in that: A vent hole (3) is provided at the center of the outer end surface of the cover body (1), and a cover plate (4) is provided on the vent hole (3). A rubber sleeve (5) is provided at the lower end of the circumferential surface of the cover body (1), and the rubber sleeve (5) is elastic and can be flipped up and down. A trumpet-shaped through-tube (6) is provided at the center of the inner end surface of the cover body (1), and the small opening end of the through-tube (6) faces the thermal digestion tube (2), and the large opening end of the through-tube (6) faces upward and is connected to the vent hole (3).

2. A thermal digestion sealing cover according to claim 1, characterized in that: The through pipe (6) is detachably connected to the inner end surface of the cover body (1); a group of circular plates (7) are provided at the large open end of the through pipe (6); a pair of brackets (8) are correspondingly provided on the inner end surface of the cover body (1); the through pipe (6) is rotated to buckle the group of circular plates (7) onto the brackets (8).

3. A thermal digestion sealing cover according to claim 1, characterized in that: The vent hole (3) is provided with a groove (9), the vent hole (3) is provided with a protective net (10), the cover plate (4) is accommodated in the groove (9), one end of the cover plate (4) is hinged in the groove (9), and the other end is provided with a fixing pin (11), and a corresponding positioning hole (12) is opened on the upper end surface of the cover body (1), and when the cover plate (4) covers the vent hole (3), the fixing pin (11) is inserted into the positioning hole (12).

4. A thermal digestion sealing cover according to claim 3, characterized in that: A lifting plate (13) is provided at one end of the cover plate (4) for opening the cover plate (4).

5. The thermal digestion sealing cover according to claim 1, characterized in that: The invention also comprises a pipe sleeve (14), a connecting bolt (15), a bolt sleeve (16), and a connecting rope (17); the pipe sleeve (14) is sleeved on the tube body of the thermal digestion tube (2); the connecting bolt (15) is fixed on the cover body (1); the connecting rope (17) connects the pipe sleeve (14) and the bolt sleeve (16) respectively; when the cover body (1) is separated from the thermal digestion tube (2), the bolt sleeve (16) is sleeved on the connecting bolt (15).

6. The thermal digestion sealing cover according to claim 1, characterized in that: A plurality of round strips (18) are arranged on the outer circumference of the cover body (1).

7. The thermal digestion sealing cover according to claim 1, characterized in that: The cover body (1) is threadedly connected to the open end of the thermal digestion tube (2).

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