A high-safety U-shaped hot water bag for nursing and its production method

Abstract

The present invention discloses a high-safety U-shaped hot water bag for nursing and a production method thereof, which relates to the field of hot water bags and aims to solve the problem that the location of water leakage points is random, hot water may directly contact the human body to cause scalding accidents, and the use safety needs to be improved. The main points of the technical solution are that a smooth connection part is connected to the U-shaped inner side of the U-shaped bag body, a flat connection part is provided on the U-shaped outer side of the U-shaped bag body, the smooth connection part is connected to the U-shaped bag body and is formed in one step, a mold core entry and exit seam is provided on the flat connection part, and the mold core entry and exit seam is filled with glue, thereby preventing the hot water from leaking and contacting the human body in the first time, and the leaked hot water will lose a lot of heat in the process of contacting the human body through other media, which effectively prevents the hot water from scalding the human body.

Description

Technical Field

[0001] The invention relates to the technical field of hot water bags, in particular to a high-safety U-shaped hot water bag for nursing and a production method thereof. Background Art

[0002] Hot water bags are often used for hot compress care for patients. Warmth can stimulate tissue regeneration and relieve pain and enhance tissue nutrition. When warmth acts on wounds on the body surface, a large amount of serous exudate increases, which can help remove pathological products. Heat can dilate blood vessels and enhance vascular permeability, which is beneficial to the excretion of tissue metabolic products and the absorption of nutrients, inhibiting the development of inflammation and promoting healing. Different methods of hot compress use different hot compress tools. Hot water bag is used for water hot compress therapy because hot compress needs to be carried out for a long time.

[0003] A type of nursing hot water bag currently on the market is a U-shaped hot water bag, which is made of two U-shaped sheets stacked together, with raw materials added to the edges to be bonded together. When applying hot compress, the neck, limbs and other parts of the human body can be stuck into the U-shaped groove for all-round wrapping hot compress care.

[0004] The above-mentioned prior art solutions have the following defects: due to the edge bonding treatment, the edge tensile strength and tear resistance of the U-shaped hot water bag are basically the same, resulting in random leakage points when it leaks due to long-term use, aging or overpressure. When the leakage point is located inside the U-shaped groove close to the human body, hot water will directly contact the human body and cause scalding accidents. Therefore, the safety of use needs to be improved. Summary of the invention

[0005] The invention aims to provide a high-safety U-shaped hot water bag for nursing and a production method thereof.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] It includes a U-shaped bag body, which is characterized in that a smooth connection part is connected to the U-shaped inner side of the U-shaped bag body, a flat connection part is opened on the U-shaped outer side of the U-shaped bag body, the smooth connection part is connected to the U-shaped bag body in one-time molding, the flat connection part is opened with a mold core entry and exit seam, the mold core entry and exit seam is filled with glue, and the glue seals the mold core entry and exit seam filling.

[0008] Furthermore, a water injection end and a balancing end are fixedly provided at both ends of the U-shaped bag body, the water injection end is connected to the U-shaped bag body and a water injection port is provided inside, the water injection port is sealed and bonded with a mother ring component, the mother ring component is threadedly sealed and connected with a sealing plug, and the balancing end is fixedly provided with a counterweight rubber block of the same weight as the water injection end.

[0009] Furthermore, the water injection end and the balancing end are extended with protruding hooking parts, and the hooking parts are penetrated by hooking holes.

[0010] Furthermore, the outer edge of the U-shaped bag body is extended to a plurality of heat dissipation ridges.

[0011] Furthermore, the U-shaped bag body, the smooth connection part and the flat connection part are all made of rubber material, the cross section of the smooth connection part is semicircular, and the cross section width of the smooth connection part is greater than the cross section width of the smooth connection part.

[0012] A method for producing a high-safety U-shaped hot water bag for nursing, comprising the following steps:

[0013] S1, preparation stage: cut out a whole piece of adhesive strip and fold it;

[0014] S2, mold fixing: fix the upper mold shell and the lower mold shell on the upper and lower trays of the compression molding machine respectively, and then fix the U-shaped mold core on the lower mold shell;

[0015] S3, set temperature parameters; operate the control interface of the compression molding machine to adjust the temperature of the upper mold shell and the lower mold shell to 160-180°C;

[0016] S4, first mold closing: start the compression molding machine, and use the compression molding machine to close the lower mold shell, the U-shaped mold core, and the upper mold shell. The molding time is 60-80 seconds;

[0017] S5, first mold separation: control the compression molding machine to perform mold separation, and extract the U-shaped mold core from the mold core entrance and exit seam (31) at the tail of the U-shaped bag body (1), and tear off the leftover scraps by hand;

[0018] S6, adding rubber: after the U-shaped mold core is pulled out, adding raw rubber at the mold core inlet and outlet seam (31);

[0019] S7, second mold closing and inflation: the raw rubber material is hot-pressed and molded by the compression molding machine, the mold closing temperature is 170-190°C, the molding time is 60-80 seconds, and then the semi-finished product in the mold is inflated by the air compressor to check whether there is leakage, and the inflation time is 100-200 seconds;

[0020] S8, second mold separation: mold separation again, take out the finished product, tear off the leftover materials by hand, and the finished product is formed.

[0021] In summary, the beneficial technical effects of the present invention are:

[0022] 1. Smooth connection parts and flat connection parts are used. The smooth connection parts and the U-shaped bag body are formed in one time with high connection strength. The flat connection parts and the U-shaped bag body are formed in two times. Since the flat connection parts are matured in advance during the one-time forming process, when the raw rubber is added for sealing and bonding, the bonding strength will be lower than the smooth connection parts formed in one time. When subjected to excessive internal pressure, the leakage point will first appear in the smooth connection parts far away from the human body, thereby preventing the hot water from leaking and contacting the human body in the first place. The leaked hot water will lose a lot of heat in the process of contacting the human body through other media, which effectively prevents the human body from being scalded by hot water;

[0023] 2. The smooth connection part is used. Compared with the flat connection part, the smooth connection part formed in one step does not need to reserve seams and large-area external rubber strips, so it has the effects of high molding strength, less material, and soft and smooth surface. While saving rubber and reducing production costs, the soft and smooth surface fits the human body much more than the traditional U-shaped hot water bag, which is more comfortable and has a larger hot compress area for the human body and a better hot compress effect;

[0024] 3. During the water filling process, the balancing end is easily affected by gravity, causing the U-shaped bag body to twist. After the twisting, the internal cavity of the U-shaped bag body is separated, resulting in the inability to smoothly pour in hot water. The smooth connection part adopts a semicircular wider cross-section design with a narrower flat connection part. On the one hand, the smooth connection part as a whole acts as a reinforcing rib to inhibit the vertical sagging of the balancing end. On the other hand, the cross-section design with a wide top and a narrow bottom has good support for the U-shaped bag body and inhibits the twisting of the bag body, thereby producing an excellent lifting and shaping effect, avoiding the U-shaped bag body from twisting and closing the inner cavity. The inner cavity is always open, ensuring that the normal injection of hot water is affected, and avoiding the situation where the suddenly closed inner cavity is squeezed and the internal hot water is sprayed out during the hot water injection.

[0025] 4. The setting of the counterweight rubber block is to keep the two ends of the U-shaped bag balanced. When using the hanging rope and the hook hole for hooking, the two ends of the U-shaped bag are equally weighted and will not shift easily, ensuring that the user's body parts can always be well placed in the U-shaped groove of the U-shaped bag for hot compress. If necessary, it can also be used with a cloth cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 The overall structure of the present invention shows the explosion intention;

[0029] Figure 3It is an enlarged schematic diagram of the structure of part A in the figure;

[0030] Figure 4 It is a schematic diagram of the cross-sectional structure of the U-shaped bag body in the present invention.

[0031] Figure 5 This is a schematic diagram of the natural state twisting of the product of Example 1;

[0032] Figure 6 This is a schematic diagram of the natural state twisting of the product of Example 1.

[0033] In the figure, 1, U-shaped bag body; 2, smooth connection part; 3, flat connection part; 31, mold core entry and exit seam; 4, water injection end; 41, water injection port; 42, mother ring component; 43, sealing plug; 5, balance end; 51, counterweight rubber block; 6, hook part; 61, hook hole; 7, heat dissipation ridge. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings.

[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] See also Figure 1-3 , the present invention provides a technical solution:

[0037] The utility model comprises a U-shaped bag body 1, wherein a smooth connection part 2 is connected to the U-shaped inner side of the U-shaped bag body 1, a flat connection part 3 is provided on the U-shaped outer side of the U-shaped bag body 1, the smooth connection part 2 is connected to the U-shaped bag body 1 for one-step molding, a core entry and exit seam 31 is provided on the flat connection part 3, the core entry and exit seam 31 is filled with rubber material, and the rubber material seals the core entry and exit seam 31.

[0038] A water injection end 4 and a balancing end 5 are fixedly provided at both ends of the U-shaped bag body 1. The water injection end 4 is connected to the U-shaped bag body 1 and a water injection port 41 is provided inside. The water injection port 41 is sealed and bonded with a mother ring component 42. The mother ring component 42 is threadedly sealed and connected with a sealing plug 43. The balancing end 5 is fixedly provided with a counterweight rubber block 51 of the same weight as the water injection end 4.

[0039] A protruding hook portion 6 is extended from the water injection end 4 and the balance end 5 , and a hook hole 61 is formed through the hook portion 6 .

[0040] The outer edge of the U-shaped bag body 1 extends to a plurality of heat dissipation ridges 7 .

[0041] The U-shaped bag body 1, the smooth connection part 2 and the flat connection part 3 are all made of rubber. The cross section of the smooth connection part 2 is semicircular, and the cross section width of the smooth connection part 2 is larger than the cross section width of the smooth connection part 2.

[0042] A smooth connection part 2 and a flat connection part 3 are used. The smooth connection part 2 and the U-shaped bag body 1 are formed once to have a higher connection strength. The flat connection part 3 and the U-shaped bag body 1 are formed twice. Since the flat connection part 3 is matured in advance during the first forming process, when the raw rubber is added for sealing and bonding, the bonding strength will be lower than the smooth connection part 2 formed once. When subjected to excessive internal pressure, the leakage point will first appear in the smooth connection part 2 far away from the human body, thereby preventing the hot water from leaking and contacting the human body in the first place. The leaked hot water will lose a lot of heat in the process of contacting the human body through other media, which effectively prevents the hot water from scalding the human body.

[0043] The smooth connection part 2 is adopted. Compared with the flat connection part 3, the smooth connection part 2 formed in one step does not need to reserve seams and large-area external rubber strips, so it has the effects of high molding strength, less material, and soft, smooth and flat surface. While saving rubber and reducing production costs, the soft and smooth surface fits the human body in a much larger area than the traditional U-shaped hot water bag, which is more comfortable and has a larger hot compress area for the human body and a better hot compress effect.

[0044] Under the action of gravity, the balancing end 5 is easily affected by gravity, causing the U-shaped bag body 1 to twist. After the twisting, the internal cavity of the U-shaped bag body 1 is divided, resulting in the inability to smoothly pour in hot water. The smooth connection part 2 adopts a semicircular wider cross-section design with a narrower flat connection part 3. On the one hand, the smooth connection part 2 as a whole acts as a reinforcing rib to suppress the vertical sagging of the balancing end 5. On the other hand, the cross-section design with a wide top and a narrow bottom has a good supporting force for the U-shaped bag body 1, suppressing the twisting of the bag body, thereby producing an excellent lifting and shaping effect, avoiding the U-shaped bag body 1 from twisting and closing the inner cavity. The inner cavity is always open and kept unobstructed, ensuring that the normal injection of hot water is affected, and avoiding the situation where the inner cavity is squeezed and the internal hot water is sprayed out when the hot water is poured.

[0045] The counterweight block is provided to keep the two ends of the U-shaped bag body 1 balanced. When the hanging rope is used in conjunction with the hook hole 61 for hooking, the two ends of the U-shaped bag body 1 are equally weighted and will not shift easily, ensuring that the user's body parts can always be well placed on the U-shaped inner side of the U-shaped bag body 1 for stable wrapping and hot compressing. If necessary, it can also be used in conjunction with a cloth cover wrap.

[0046] Embodiment 1: A high-safety U-shaped hot water bag for nursing use, the production method comprising the following steps:

[0047] S1, preparation stage: cut out a whole piece of adhesive strip and fold it;

[0048] S2, mold fixing: fix the upper mold shell and the lower mold shell on the upper and lower trays of the compression molding machine respectively, and then fix the U-shaped mold core on the lower mold shell;

[0049] S3, set temperature parameters; operate the control interface of the compression molding machine to adjust the temperature of the upper mold shell and the lower mold shell to 160-180°C;

[0050] S4, first mold closing: start the compression molding machine, and use the compression molding machine to close the lower mold shell, the U-shaped mold core, and the upper mold shell. The molding time is 60-80 seconds;

[0051] S5, first mold separation: control the compression molding machine to perform mold separation, and extract the U-shaped mold core from the mold core entrance and exit seam (31) at the tail of the U-shaped bag body (1), and tear off the leftover scraps by hand;

[0052] S6, adding rubber: after the U-shaped mold core is pulled out, adding raw rubber at the mold core inlet and outlet seam (31);

[0053] S7, second mold closing and inflation: the raw rubber material is hot-pressed and molded by the compression molding machine, the mold closing temperature is 170-190°C, the molding time is 60-80 seconds, and then the semi-finished product in the mold is inflated by the air compressor to check whether there is leakage, and the inflation time is 100-200 seconds;

[0054] S8, second mold separation: mold separation again, take out the finished product, tear off the leftover materials by hand, and the finished product is formed.

[0055] Comparative Example 1:

[0056] S1, cut out pairs of U-shaped strips;

[0057] S2, sending the U-shaped rubber strip to the upper and lower trays of the compression molding machine for hot pressing;

[0058] S3, operate the compression molding machine, adjust the molding temperature to 140-160°C, perform hot compression molding for 60-80 seconds, take out the paired U-shaped sheets after vulcanization and stack them;

[0059] S4. Stack raw rubber at the joint of the U-shaped sheet;

[0060] S5. Operate the compression molding machine, adjust the molding temperature to 170-190°C, and perform hot compression molding for 60-80 seconds;

[0061] S6, the finished product in the mold is inflated by an air compressor to check whether there is leakage, and the inflation time is 100-200 seconds;

[0062] S7, separate the mold, take out the finished product, tear off the leftover materials by hand, and the finished product is formed.

[0063] The products of Example 1 and Comparative Example 1 were subjected to tensile strength test and tear resistance test using a cutting mold. Samples were taken from the middle of the U-shaped bag, the inside of the U-shaped bag, and the outside of the U-shaped bag for testing. The shape of the sample for tensile strength test was rectangular, with a width of 5 mm, a thickness of 3 mm, and an area of ​​15 mm. 2 The shape of the sample for the tear strength test is a concave butterfly shape, and the area and thickness are consistent with the parameters in the tensile strength test, and the following table is obtained:

[0064]

[0065]

[0066] It can be seen from Table 1 and Table 2 that the strength of the middle part of the U-shaped bag body formed once and the inner side of the U-shaped bag body in Example 1 are basically the same, and are much higher than the outer side of the U-shaped bag body formed twice. When the hot water bag is under pressure and leaks, the water outlet will appear on the outer side of the U-shaped bag body with the lowest strength. In Comparative Example 1, the same material of rubber is used, and the strength of the middle part of the U-shaped bag body of the two is basically the same, but the strength of the inner and outer sides of the U-shaped bag body is much lower than the strength of the middle part of the U-shaped bag body. When the hot water bag is under pressure and leaks, the water outlet may appear at random positions on the inside and outside of the U-shaped bag body.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0068] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-safety U-shaped hot water bag for nursing care, comprising a U-shaped bag body (1), characterized in that: The U-shaped inner side of the U-shaped bag body (1) is connected with a smooth connection part (2), and the U-shaped outer side of the U-shaped bag body (1) is provided with a flat connection part (3). The smooth connection part (2) is connected to the U-shaped bag body (1) in a one-step molding arrangement, and the flat connection part (3) is provided with a mold core entry and exit seam (31). The mold core entry and exit seam (31) is filled with rubber, and the rubber seals the mold core entry and exit seam (31).

2. A high-safety U-shaped hot water bag for nursing use according to claim 1, characterized in that: The U-shaped bag body (1) is fixedly provided with a water injection end (4) and a balancing end (5) at both ends; the water injection end (4) is connected to the inside of the U-shaped bag body (1) and is provided with a water injection port (41); the water injection port (41) is sealed and bonded with a mother ring component (42); the mother ring component (42) is threadedly sealed and provided with a sealing plug (43); and the balancing end (5) is fixedly provided with a counterweight rubber block (51) of the same weight as the water injection end (4).

3. A high-safety U-shaped hot water bag for nursing use according to claim 2, characterized in that: The water injection end (4) and the balance end (5) are extended with a protruding hook portion (6), and the hook portion (6) is penetrated by a hook hole (61).

4. A high-safety U-shaped hot water bag for nursing use and the like according to claim 1, characterized in that: The outer edge of the U-shaped bag body (1) is extended to a plurality of heat dissipation ridges (7).

5. A high-safety U-shaped hot water bag for nursing use according to claim 1, characterized in that: The U-shaped bag body (1), the smooth connection part (2) and the flat connection part (3) are all made of rubber material. The cross section of the smooth connection part (2) is semicircular, and the cross-sectional width of the smooth connection part (2) is greater than the cross-sectional width of the smooth connection part (2).

6. A method for producing a high-safety U-shaped hot water bag for nursing use according to claims 1-5, characterized in that: The steps include: S1, preparation stage: cut out a whole piece of adhesive strip and fold it; S2, mold fixing: fix the upper mold shell and the lower mold shell on the upper and lower trays of the compression molding machine respectively, and then fix the U-shaped mold core on the lower mold shell; S3, set temperature parameters; operate the control interface of the compression molding machine to adjust the temperature of the upper mold shell and the lower mold shell to 160-180°C; S4, first mold closing: start the compression molding machine, and use the compression molding machine to close the lower mold shell, the U-shaped mold core, and the upper mold shell. The molding time is 60-80 seconds; S5, first mold separation: control the compression molding machine to perform mold separation, and extract the U-shaped mold core from the mold core entrance and exit seam (31) at the tail of the U-shaped bag body (1), and tear off the leftover scraps by hand; S6, adding rubber: after the U-shaped mold core is pulled out, adding raw rubber at the mold core inlet and outlet seam (31); S7, second mold closing and inflation: the raw rubber material is hot-pressed and molded by the compression molding machine, the mold closing temperature is 170-190°C, the molding time is 60-80 seconds, and then the semi-finished product in the mold is inflated by the air compressor to check whether there is leakage, and the inflation time is 100-200 seconds; S8, second mold separation: mold separation again, take out the finished product, tear off the leftover materials by hand, and the finished product is formed.

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