Stethoscope heating and heat preservation device and manufacturing process thereof

Abstract

The stethoscope heating and heat preservation device comprises a bag body, a partition plate is arranged in the bag body, the interior of the bag body is divided into a heat preservation cavity and an installation cavity through the partition plate, a stethoscope head can be placed in the heat preservation cavity, a power source is arranged in the installation cavity, a heating ring is arranged in the partition plate, and the heating ring is connected with the power source through a wire harness. The heating ring can heat the stethoscope head. The bag body and the partition plate are made into the heat preservation bag, heating and heat preservation can be conducted on the stethoscope head, auscultation can be conducted on a patient through the warm stethoscope head in cold winter, and the discomfort of the patient is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary products, and more specifically, to a stethoscope heating and heat preservation device and a manufacturing process thereof. Background Art

[0002] Stethoscopes play an important role in clinical practice and are essential tools for doctors, especially cardiovascular and respiratory physicians. Stethoscopes have the advantages of simple operation, low cost and wide use. In the structure of the flat stethoscope head commonly used in clinical practice, the middle of the surface in contact with the patient is a thin film, and the outer edge is metal. When patients seek medical treatment in cold weather, medical staff need to put the stethoscope in direct contact with the patient's skin for auscultation. However, since there is a metal part in contact with the patient's skin, it will bring a cold and uncomfortable experience to the patient, resulting in poor auscultation effect. Therefore, it is urgent to improve this. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a stethoscope heating and insulation device and its manufacturing process. By making the bag body and the partition into an insulation bag, the stethoscope head can be heated and insulated, so that the patient can be auscultated with the warm stethoscope head in the cold winter, thereby reducing the patient's discomfort.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] The present invention discloses a stethoscope heating and heat preservation device, comprising a bag body, wherein a partition is arranged inside the bag body, and the bag body is separated by the partition to form a heat preservation cavity and an installation cavity, wherein a stethoscope head can be placed in the heat preservation cavity, a power supply is arranged in the installation cavity, a heating ring is arranged inside the partition, and the heating ring is connected to the power supply through a wiring harness, and the heating ring can heat the stethoscope head.

[0006] Furthermore, the partition includes a sheet body and a film sheet, one side of the sheet body is connected to the bag body and the other side is fixed to the film sheet by hot melting, and the heating ring is located between the sheet body and the film sheet.

[0007] Furthermore, the stethoscope head includes a metal sleeve and a film, an insulating ring is provided inside the heating ring, the outer diameter of the insulating ring is larger than the inner diameter of the metal sleeve and smaller than the outer diameter of the metal sleeve, the inner diameter of the heating ring is larger than the outer diameter of the film and smaller than the outer diameter of the metal sleeve, and the outer diameter of the heating ring is larger than the outer diameter of the metal sleeve.

[0008] Furthermore, a groove is provided on one side of the sheet body facing the heat preservation cavity, the groove is located in the heat insulation ring, the sheet body located at the groove is fixed to the adhesive film sheet by hot melting, and the film faces the groove.

[0009] Furthermore, the bag body includes an integrally formed rear guard, front guard and flap, the flap is arranged on the upper part of the rear guard, the sheet body is fixed to the rear guard, the heat preservation cavity is located between the rear guard and the partition, and the installation cavity is located between the front guard and the partition.

[0010] Furthermore, a first magnet is fixed on the inner side of the rear barrier, and a second magnet is fixed on the outer side of the front barrier. The first magnet can be attracted to the second magnet so that the flip cover covers the heat preservation cavity and the installation cavity, and a cutout is provided inside the flip cover.

[0011] Furthermore, a heat insulating sheet is provided in the bag body, and the heat insulating sheet is respectively fixed to the inner side of the rear windshield and the partition on one side of the film sheet.

[0012] Furthermore, the thermal insulation sheet includes a first thermal insulation part and a second thermal insulation part, a second adhesive sheet is provided on one side of the first thermal insulation part, and a third adhesive sheet is provided on the side of the second thermal insulation part away from the second adhesive sheet, the second adhesive sheet is adhered and fixed to the inner side of the rear windshield, and the third adhesive sheet is adhered and fixed to the partition on one side of the film sheet.

[0013] Furthermore, a U-shaped first adhesive sheet is provided on one side of the sheet body away from the adhesive film sheet, and the first adhesive sheet is adhered and fixed to the first heat insulating part.

[0014] A manufacturing process of a stethoscope heating and heat preservation device comprises the following steps:

[0015] S1. unfold the bag body, place the heat insulation sheet flat on the surface of the bag body, with the first heat insulation portion of the heat insulation sheet located at the rear windshield, and the second heat insulation portion located at the front windshield, and the first heat insulation portion and the rear windshield are fixed by gluing with the second adhesive sheet;

[0016] S2, placing a partition on the surface of the first heat insulation part with the wiring harness facing upward, and adhering and fixing the partition to the first heat insulation part through a first adhesive sheet, so that a heat preservation cavity is formed between the rear baffle and the partition;

[0017] S3, turning the second heat insulating part upward along the lower edge of the partition, and sticking and fixing the second heat insulating part to the partition on one side of the adhesive film through the third adhesive sheet;

[0018] S4, turning the front guard upward along the fold line so that the two side edges of the front guard are close to the two side edges of the rear guard, and sewing the front guard and the rear guard by a sewing machine;

[0019] S5. Complete the production.

[0020] The beneficial effects of the present invention are:

[0021] 1. When in use, insert the stethoscope head into the insulation cavity. The insulation cavity can be heated by the heating ring, thereby heating the stethoscope head. This is beneficial for auscultating patients with the warm stethoscope head in the cold winter, reducing the patient's discomfort;

[0022] 2. By arranging a heat-insulating ring inside the heating ring, the heating ring can directly heat the metal sleeve, thereby improving the heating effect of the metal sleeve and greatly reducing the heating effect of the heating ring on the film, effectively avoiding the heating ring directly heating the film and thus reducing the service life of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of the invention;

[0024] Figure 2 is a cross-sectional view of the present invention;

[0025] Figure 3 This is the unfolded view of the bag;

[0026] Figure 4 It is a schematic diagram of the structure of the thermal insulation sheet;

[0027] Figure 5 This is a process diagram for manufacturing the partition;

[0028] Figure 6 It is the manufacturing process diagram of the present invention;

[0029] Figure 7 A schematic diagram of the structure of a pressing machine for making partitions in a first state;

[0030] Figure 8 for Figure 7 A partial schematic diagram of

[0031] Fig. 9 A schematic diagram of the structure of a pressing machine for making partitions in a second state;

[0032] Fig.10 It is a partial cross-sectional view of the pressing machine;

[0033] Fig.11 for Fig.10 Enlarged view at A.

[0034] Figure numerals: 1, bag body; 11, rear guard; 12, front guard; 13, flip cover; 14, first magnet; 15, second magnet; 16, incision; 17, heat preservation cavity; 18, installation cavity; 19, fold line; 2, partition; 21, sheet body; 211, groove; 22, heating ring; 221, wiring harness; 23, heat insulation ring; 24, film sheet; 25, first adhesive sheet; 3, heat insulation sheet; 31, first heat insulation part; 32, second heat insulation part; 33, second adhesive sheet; 34, third adhesive sheet ; 4. Power supply; 5. Base; 51. Workbench; 511. Hinge seat; 52. Support frame; 53. Lifter; 54. Bracket; 6. Hot melt table; 61. Limiting groove; 62. Positioning groove; 63. Avoidance groove; 7. Flip plate; 71. Avoidance opening; 72. Handle; 8. Stamping mechanism; 81. Stamping block; 811. Boss; 812. Ring table; 813. Notch; 82. Press plate; 83. Push plate; 84. Spring; 9. Stethoscope head; 91. Metal sleeve; 92. Film; 100. Infrared instrument. DETAILED DESCRIPTION

[0035] 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.

[0036] like Figures 1 to 6 As shown, a stethoscope heating and heat preservation device comprises a bag body 1, wherein a partition 2 is arranged inside the bag body 1, and the bag body 1 is separated by the partition 2 to form a heat preservation cavity 17 and an installation cavity 18, wherein a stethoscope head 9 can be placed in the heat preservation cavity 17, and a power supply 4 is arranged in the installation cavity 18, and a heating ring 22 is arranged inside the partition 2, wherein the heating ring 22 is a composite superconducting fiber heating ring, and the heating ring 22 is connected to the power supply 4 through a wiring harness 221, and the heating ring 22 can heat the stethoscope head 9, and the heating ring 22 is electrically heated, and the method of heating the heating ring 22 by the power supply 4 is a prior art, and its principle is not elaborated in this specification, when in use, the stethoscope head 9 is inserted into the heat preservation cavity 17, and the heat preservation cavity 17 can be heated by the heating ring 22, thereby heating the stethoscope head 9, which is beneficial for auscultating the patient with the warm stethoscope head 9 in the cold winter, thereby reducing the patient's discomfort.

[0037] like Figure 3As shown, the bag body 1 includes an integrally formed rear baffle 11, a front baffle 12 and a flip cover 13, the flip cover 13 is arranged on the upper part of the rear baffle 11, a first magnet 14 is fixed to the inner side of the rear baffle 11, and a second magnet 15 is fixed to the outer side of the front baffle 12, the first magnet 14 can be attracted with the second magnet 15 so that the flip cover 13 covers the insulation cavity 17 and the installation cavity 18, and a cutout 16 is arranged inside the flip cover 13, the stethoscope is composed of a stethoscope head 9, a stethoscope tube and an ear piece, the stethoscope tube can pass through the cutout 16, thereby realizing the connection between the bag body 1 and the stethoscope, so that the stethoscope head 9 can be inserted into the insulation cavity 17 after the stethoscope is used, and through the cooperation of the first magnet 14 and the second magnet 15, not only the insulation effect of the insulation cavity 17 can be improved, but also it is convenient to open the flip cover 13 and take out the stethoscope head 9, which is convenient to use.

[0038] like Figure 2 As shown, the partition 2 includes a sheet 21 and a film sheet 24, the sheet 21 is fixed to the rear bumper 11, the insulation cavity 17 is located between the rear bumper 11 and the partition 2, the installation cavity 18 is located between the front bumper 12 and the partition 2, one side of the sheet 21 is connected to the bag body 1 and the other side is fixed to the film sheet 24 by hot melt, the method of hot melt fixing of the sheet 21 and the film sheet 24 is the prior art, and the principle of hot melt fixing is not elaborated in this specification, the heating ring 22 is located between the sheet 21 and the film sheet 24, the material of the sheet 21 is cloth, the size of the sheet 21 is larger than the size of the film sheet 24, the sheet 21 and the film sheet 24 are fixed by hot melt, and the heating ring 22 can be effectively fixed therebetween, which can not only realize the fixation of the heating ring 22, but also protect the heating ring 22 and prevent the heating ring 22 from directly contacting the stethoscope head 9.

[0039] The stethoscope head 9 includes a metal sleeve 91 and a film 92. An insulating ring 23 is provided inside the heating ring 22. The outer diameter of the insulating ring 23 is larger than the inner diameter of the metal sleeve 91 and smaller than the outer diameter of the metal sleeve 91. The inner diameter of the heating ring 22 is larger than the outer diameter of the film 92 and smaller than the outer diameter of the metal sleeve 91. The outer diameter of the heating ring 22 is larger than the outer diameter of the metal sleeve 91.

[0040] By arranging the insulating ring 23 inside the heating ring 22, the heating ring 22 can directly heat the metal sleeve 91, thereby improving the heating effect of the metal sleeve 91, and can also greatly reduce the heating effect of the heating ring 22 on the film 92, effectively avoiding the heating ring 22 directly heating the film 92 and reducing the service life of the film 92.

[0041] The sheet 21 is provided with a groove 211 on the side facing the insulation cavity 17, and the groove 211 is located in the insulation ring 23. The sheet 21 located at the groove 211 is fixed to the adhesive film 24 by heat melting, and the film 92 is opposite to the groove 211. By setting the insulation ring 23, when the sheet 21 is heat melted with the adhesive film 24, the area located in the middle of the insulation ring 23 can also be heat melted together to pass through the groove 211 structure, which not only makes the position fixation of the heating ring 22 and the insulation ring 23 more reliable, but also can reduce the contact area between the film 92 and the sheet 21, thereby preventing the film 92 from being squeezed and deformed when the stethoscope head 9 is inserted into the insulation cavity 17.

[0042] like Figure 2 and Figure 4 As shown, a heat insulating sheet 3 is provided in the bag body 1, and the heat insulating sheet 3 is respectively fixed to the inner side of the rear bumper 11 and the partition 2 on one side of the adhesive film sheet 24. Specifically, the heat insulating sheet 3 includes a first heat insulating portion 31 and a second heat insulating portion 32. The first heat insulating portion 31 and the second heat insulating portion 32 are integrally formed and are made of heat insulating cotton material. A second adhesive sheet 33 is provided on one side of the first heat insulating portion 31, and a third adhesive sheet 34 is provided on the side of the second heat insulating portion 32 away from the second adhesive sheet 33. The second adhesive sheet 33 and the third adhesive sheet 34 are double-sided adhesive tapes of heat insulating aluminum foil. The second adhesive sheet 33 is adhered and fixed to the inner side of the rear bumper 11, and the third adhesive sheet 34 is double-sided adhesive tapes of heat insulating aluminum foil. The second adhesive sheet 33 is adhered and fixed to the inner side of the rear bumper 11, and the third adhesive sheet 34 is double-sided adhesive tapes of heat insulating aluminum foil. The sheet 34 and the partition 2 are glued and fixed on one side of the adhesive film sheet 24, and a U-shaped first adhesive sheet 25 is provided on the side of the sheet body 21 away from the adhesive film sheet 24. The first adhesive sheet 25 is glued and fixed to the first heat insulating and heat preserving part 31. The thickness of the first adhesive sheet 25 is three millimeters. By providing the heat insulating and heat preserving sheet 3, not only can the heat preservation cavity 17 be insulated and heat preserved, but also the heat conduction of the heating ring 22 to the installation cavity 18 can be reduced to prevent the power supply 4 from overheating. By providing a U-shaped first adhesive sheet 25 with a certain thickness, a U-shaped heat preservation cavity 17 can be formed, which can not only realize the placement limit effect on the stethoscope head 9, but also reduce the squeezing of the stethoscope head 9 by the heat preservation cavity 17.

[0043] like Figure 2 , Figure 3 and Figure 6 As shown, a manufacturing process of a stethoscope heating and heat preservation device comprises the following steps:

[0044] S1, such as Figure 6 As shown in a and 6b, unfold the bag body 1, place the heat insulation sheet 3 flat on the surface of the bag body 1, the first heat insulation portion 31 of the heat insulation sheet 3 is located at the rear window 11, the second heat insulation portion 32 is located at the front window 12, and the first heat insulation portion 31 and the rear window 11 are fixed by the second adhesive sheet 33;

[0045] S2, such as Figure 6 As shown in c, the partition 2 is placed on the surface of the first heat insulation and heat preservation part 31, with the harness 221 facing upward, and the partition 2 and the first heat insulation and heat preservation part 31 are glued and fixed by the first adhesive sheet 25, so that a heat preservation cavity 17 is formed between the rear windshield 11 and the partition 2;

[0046] S3, such as Figure 6 As shown in FIG. d, the second heat insulating and heat retaining part 32 is turned upward along the lower edge of the partition 2, and the second heat insulating and heat retaining part 32 is adhered and fixed to the partition 2 on one side of the adhesive film 24 through the third adhesive sheet 34;

[0047] S4, such as Figure 6 As shown in FIG. 5 , the front guard 12 is turned upward along the fold line 19 so that the two side edges of the front guard 12 are close to the two side edges of the rear guard 11, and the front guard 12 and the rear guard 11 are sewn together by a sewing machine;

[0048] S5. Complete the production.

[0049] Before production, the bag body 1 has been installed with the first magnet 14 and the second magnet 15, and is also provided with a cross cut 16. During production, the thermal insulation sheet 3 is glued and fixed to the bag body 1, and the partition 2 is glued and fixed to the thermal insulation sheet 3, thereby realizing a detachable design of the partition 2, which is beneficial to the replacement of the partition 2.

[0050] like Figure 5 , Figures 7 to 11 As shown, the partition 2 is made by a pressing machine, and the pressing machine includes a base 5, a workbench 51 and a support frame 52 are provided on the upper part of the base 5, a hot melt table 6 is installed inside the workbench 51, and a lifter 53 is installed on the upper part of the support frame 52. The lifter 53 is a cylinder, and a stamping mechanism 8 is fixed at the end of the telescopic rod of the lifter 53. The stamping mechanism 8 is located above the hot melt table 6. The stamping mechanism 8 can be lifted and lowered to abut or stay away from the upper surface of the hot melt table 6. When it is necessary to make When making the partition 2, first, the hot melt table 6 is heated, and the adhesive film sheet 24 is placed flat on the surface of the hot melt table 6. The adhesive film sheet 24 is heated by the hot melt table 6, and then the heating ring 22 and the insulation ring 23 are placed on the surface of the adhesive film sheet 24, and then the sheet body 21 is covered on the surface of the heating ring 22 and the insulation ring 23. Finally, the lifter 53 drives the stamping mechanism 8 to descend, squeezes the sheet body 21 and the adhesive film sheet 24, and fixes the sheet body 21 and the adhesive film sheet 24 by hot melting through the hot melt table 6. The operation is convenient and the fixation is reliable.

[0051] A plurality of hot-melt zones are provided on the surface of the hot-melt table 6, and the hot-melt zones include a limiting groove 61, a positioning groove 62 and an avoidance groove 63. The bottom of the limiting groove 61 can be heated, and the adhesive film sheet 24 can be placed in the limiting groove 61 for limiting. The positioning groove 62 is located at the outer periphery of the limiting groove 61, and the internal size of the positioning groove 62 is consistent with the sheet body 21, so that the placement of the sheet body 21 can be positioned, making the processing more precise. The avoidance groove 63 is located on the surface of the hot-melt table 6 and is connected with the limiting groove 61. When the heating ring 22 is placed on the surface of the adhesive film sheet 24, the wiring harness 221 of the heating ring 22 can be inserted into the avoidance groove 63 to prevent the stamping mechanism 8 from squeezing the wiring harness 221 during stamping.

[0052] The stamping mechanism 8 includes a pressing plate 82, and a stamping block 81 corresponding to the hot melting zone is provided at the lower part of the pressing plate 82. A boss 811 and an annular platform 812 are provided at the lower part of the stamping block 81. The outer diameter of the boss 811 is smaller than the inner diameter of the heat insulating ring 23, and the outer dimension of the annular platform 812 is smaller than the side wall dimension of the limiting groove 61. The inner diameter of the annular platform 812 is larger than the inner diameter of the heating ring 22, and a notch 813 is provided on one side of the avoidance groove 63 of the annular platform 812 for avoiding the wiring harness 221. When stamping and hot melting, the boss 811 can push the sheet 21 to insert into the center of the heat insulating ring 23 so that the sheet 21 of this part is fused with the film sheet 24, thereby forming a groove 211 structure, and the lower part of the annular platform 812 can abut and squeeze the sheet 21 and the film sheet 24 so that the two are hot-melted and fixed.

[0053] The stamping mechanism 8 includes a push plate 83, which is fixed to the telescopic rod of the lifter 53. A spring 84 is arranged between the push plate 83 and the pressure plate 82. The push plate 83 and the pressure plate 82 are connected by a connecting rod. When the stamping block 81 abuts against the surface of the hot melt table 6, the push plate 83 can continue to descend and compress the spring 84, thereby playing a buffering role.

[0054] Among them, a flap 7 is arranged on the upper part of the workbench 51, and the flap 7 is hinged to the upper part of the workbench 51 through a hinge seat 511. A plurality of avoidance openings 71 corresponding to the hot melting zone are arranged inside the flap 7. The size of the avoidance openings 71 is larger than the size of the stamping block 81 and smaller than the size of the positioning groove 62. When the sheet 21 is placed in the hot melting zone, the flap 7 rotates along the hinge seat 511 to abut against the surface of the workbench 51, and the flap 7 can press the sheet 21, so as to prevent the sheet 21 from shifting, thereby improving the reliability of hot melting, and a handle 72 is provided on one side of the flap 7. By setting the handle 72, it is convenient to move the flap 7.

[0055] A bracket 54 is fixed to the outside of the support frame 52, and an infrared instrument 100 corresponding to the hot melting zone is provided on the side of the bracket 54 facing the workbench 51. The infrared rays of the infrared instrument 100 are directly facing the center of the limiting groove 61. Through the above design, the positioning function of the heating ring 22 can be achieved by line of sight, thereby improving the accuracy of the placement of the positioning ring 22.

[0056] The manufacturing process of the partition 2 comprises the following steps:

[0057] S1, placing the adhesive film sheet 24 in the limiting groove 61 of the hot melt table 6 of the pressing machine, and heating the limiting groove 61;

[0058] S2, placing the heating ring 22 and the heat-insulating ring 23 on the surface of the adhesive film 24, and embedding the wiring harness 221 of the heating ring 22 into the avoidance groove 63;

[0059] S3, cover the sheet 21 on the surface of the heating ring 22 and the insulation ring 23, the sheet 21 is larger than the film sheet 24, and the edge of the sheet 21 is close to the edge of the positioning groove 62;

[0060] S4, flip the flap 7 to cover the surface of the workbench 51;

[0061] S5, the lifter 53 drives the punching mechanism 8 to descend, and the punching block 81 squeezes the sheet body 21 and the adhesive film sheet 24, and hot-melts the sheet body 21 and the adhesive film sheet 24 to fix them;

[0062] S6, remove the partition 2, and stick the first adhesive sheet 25 on the side of the sheet 21 away from the adhesive film sheet 24;

[0063] S7, completing the production of the partition 2.

[0064] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A stethoscope heating and heat preservation device, characterized in that: The invention comprises a bag body (1), wherein a partition (2) is arranged inside the bag body (1), and the bag body (1) is separated by the partition (2) to form a heat preservation chamber (17) and a mounting chamber (18), wherein a stethoscope head (9) can be placed inside the heat preservation chamber (17), and a power source (4) is arranged inside the mounting chamber (18), and a heating ring (22) is arranged inside the partition (2), and the heating ring (22) is connected to the power source (4) via a wiring harness (221), and the heating ring (22) can heat the stethoscope head (9).

2. A stethoscope heating and heat preservation device according to claim 1, characterized in that: The partition (2) comprises a sheet body (21) and an adhesive film sheet (24); one side of the sheet body (21) is connected to the bag body (1) and the other side is fixed to the adhesive film sheet (24) by hot melting; the heating ring (22) is located between the sheet body (21) and the adhesive film sheet (24).

3. A stethoscope heating and heat preservation device according to claim 2, characterized in that: The stethoscope head (9) comprises a metal sleeve (91) and a film (92); a heat insulating ring (23) is arranged inside the heating ring (22); the outer diameter of the heat insulating ring (23) is larger than the inner diameter of the metal sleeve (91) and smaller than the outer diameter of the metal sleeve (91); the inner diameter of the heating ring (22) is larger than the outer diameter of the film (92) and smaller than the outer diameter of the metal sleeve (91); and the outer diameter of the heating ring (22) is larger than the outer diameter of the metal sleeve (91).

4. A stethoscope heating and heat preservation device according to claim 3, characterized in that: A groove (211) is provided on one side of the sheet body (21) facing the heat preservation chamber (17); the groove (211) is located in the heat insulation ring (23); the sheet body (21) located at the groove (211) is fixed to the adhesive film (24) by hot melting; and the film (92) is directly opposite to the groove (211).

5. A stethoscope heating and heat preservation device according to claim 2, characterized in that: The bag body (1) comprises an integrally formed rear baffle (11), a front baffle (12) and a flip cover (13); the flip cover (13) is arranged on the upper part of the rear baffle (11); the sheet body (21) is fixed to the rear baffle (11); the heat preservation cavity (17) is located between the rear baffle (11) and the partition (2); and the installation cavity (18) is located between the front baffle (12) and the partition (2).

6. A stethoscope heating and heat preservation device according to claim 5, characterized in that: A first magnet (14) is fixed on the inner side of the rear baffle (11), and a second magnet (15) is fixed on the outer side of the front baffle (12); the first magnet (14) can be attracted to the second magnet (15) so that the flip cover (13) covers the heat preservation cavity (17) and the installation cavity (18); and a cutout (16) is provided inside the flip cover (13).

7. A stethoscope heating and heat preservation device according to claim 5, characterized in that: A heat insulating sheet (3) is provided in the bag body (1), and the heat insulating sheet (3) is respectively fixed to the inner side of the rear baffle (11) and to one side of the partition (2) located on the adhesive film sheet (24).

8. A stethoscope heating and heat preservation device according to claim 7, characterized in that: The heat insulating sheet (3) comprises a first heat insulating portion (31) and a second heat insulating portion (32); a second adhesive sheet (33) is provided on one side of the first heat insulating portion (31); a third adhesive sheet (34) is provided on the side of the second heat insulating portion (32) facing away from the second adhesive sheet (33); the second adhesive sheet (33) is adhesively fixed to the inner side of the rear bumper (11); and the third adhesive sheet (34) is adhesively fixed to the partition (2) on one side of the adhesive film sheet (24).

9. A stethoscope heating and heat preservation device according to claim 8, characterized in that: A U-shaped first adhesive sheet (25) is provided on one side of the sheet body (21) away from the adhesive film sheet (24), and the first adhesive sheet (25) is adhered and fixed to the first heat insulating and heat retaining part (31).

10. A manufacturing process of a stethoscope heating and heat preservation device, characterized in that: The following steps are involved: S1, unfolding the bag body (1), placing the heat insulating sheet (3) flat on the surface of the bag body (1), with the first heat insulating portion (31) of the heat insulating sheet (3) located at the rear bumper (11), and the second heat insulating portion (32) located at the front bumper (12), and the first heat insulating portion (31) and the rear bumper (11) being fixed by gluing them together via a second adhesive sheet (33); S2, placing the partition (2) on the surface of the first heat-insulating and heat-retaining portion (31), with the wiring harness (221) facing upward, and gluing and fixing the partition (2) and the first heat-insulating and heat-retaining portion (31) together via a first adhesive sheet (25), so that a heat-retaining cavity (17) is formed between the rear baffle (11) and the partition (2); S3, turning the second heat insulating and heat retaining part (32) upward along the lower edge of the partition (2), and adhering and fixing the second heat insulating and heat retaining part (32) to the partition (2) on one side of the adhesive film (24) through the third adhesive sheet (34); S4, turning the front guard (12) upward along the fold line (19) so that the two side edges of the front guard (12) are close to the two side edges of the rear guard (11), and sewing the front guard (12) and the rear guard (11) together by a sewing machine; S5. Complete the production.

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