Silica gel foaming weight-bearing dumbbell and preparation method thereof

Abstract

The invention discloses a silica gel foaming load-bearing dumbbell and a preparation method, the silica gel foaming load-bearing dumbbell comprises a dumbbell sleeve formed by foaming a silica gel material, the dumbbell sleeve is of a hollow structure, and the dumbbell sleeve is filled with a balance weight body used for achieving dumbbell balance weight; the dumbbell structure is mainly prepared from the following materials in percentage by weight: 30-35% of silica gel, 45-60% of iron powder and 10% of auxiliary agent; the auxiliary agent comprises 5% of an iron powder catalyst and 5% of an iron powder curing agent; the whole dumbbell structure is composed of the dumbbell sleeve made of the silica gel material and the balance weight body filled in the dumbbell sleeve, and the whole dumbbell sleeve made of the silica gel material is of a soft structure and has the protection performance. The user can be prevented from being hurt due to falling of the dumbbell or being hurt due to collision with the dumbbell in the using process.

Description

Technical Field

[0001] The present invention belongs to the technical field of weighted dumbbells, and relates to a silicone foam weighted dumbbell and a preparation method thereof. Background Art

[0002] Dumbbells are common auxiliary equipment for weightlifting and fitness exercises and can be used in muscle strength training and compound muscle movement training. During the use of dumbbells, due to the certain structural weight of the dumbbells themselves, it is easy to experience hand slippage during use, especially for users with relatively small strength. If the dumbbell falls out of the hand, due to the large weight of the dumbbell and the impact force of the fall, if it hits the user's foot, it will cause harm to the user and may even lead to fractures. Therefore, to avoid this technical problem, the present application proposes a dumbbell with a silicone protection structure, which can avoid the situation of the dumbbell falling and injuring the user or the user being injured due to collision with the dumbbell, improving safety. Summary of the Invention

[0003] To solve the above technical problems, the present invention adopts the following technical solutions:

[0004] A silicone foam weighted dumbbell includes: a dumbbell sleeve made of foamed silicone material, the dumbbell sleeve is a hollow structure, and a weight body for realizing the weight of the dumbbell is filled inside the dumbbell sleeve.

[0005] As a further solution of the present invention: filling ports for filling the weight body are provided at both ends of the dumbbell sleeve, and a sleeve cover body for sealing the filling port is formed on the filling port.

[0006] A preparation method of a silicone foam weighted dumbbell is used for the preparation of the above-mentioned silicone foam weighted dumbbell and is made of the following proportion of materials: 30-35% of silicone, 45-60% of iron powder, and 10% of auxiliary additives;

[0007] The auxiliary additives include: 5% of iron powder catalyst and 5% of iron powder curing agent;

[0008] It includes the following preparation steps:

[0009] S1: Using silicone as the base material of the dumbbell sleeve, adding it to a plasticator to form the dumbbell sleeve and the sleeve body; then performing surface treatment on the dumbbell sleeve and the sleeve body, and increasing the smoothness of the product feel by removing burrs and spraying oil;

[0010] S2: Mixing iron powder, iron powder catalyst, and iron powder curing agent in equal proportions to form a weight filling material; and filling it into the dumbbell sleeve from the filling port, and forming a weight body structure after curing;

[0011] S3: Feed the filled dumbbell sleeve and the sleeve housing into a heating and foaming device. Through the method of heating, baking, and foaming, the dumbbell sleeve and the sleeve housing are foamed and formed, and the sleeve housing is fixedly formed on the filling port of the dumbbell sleeve to complete the preparation of the silica gel foamed weighted dumbbell.

[0012] As a further solution of the present invention: The silica gel matrix material of the dumbbell sleeve is a modified silica gel material; according to the weight ratio, it includes: 40 - 60 parts of silica gel, 20 - 30 parts of reinforcing agent, 5 - 10 parts of curing agent, 5 - 10 parts of control agent, 3 - 5 parts of catalyst, 1 - 2 parts of lubricant, and 1 - 2 parts of vulcanizing agent.

[0013] It includes the following preparation steps:

[0014] S1: Add silica gel into a plasticator and knead it at room temperature for 3 - 5 min; then add the curing agent in batches, and knead it for 5 - 10 min each time after adding the curing agent until the curing agent is completely dispersed.

[0015] S2: Add the curing agent, control agent, catalyst, and lubricant into the plasticator and continue to knead for 10 - 15 minutes to fully mix each component.

[0016] S3: Take out the kneaded rubber compound from the plasticator and put it into a roll mill. Thin - pass it on the roll mill 3 - 5 times to remove the air bubbles in the rubber compound; then add the vulcanizing agent and mix it evenly.

[0017] S4: Take out the kneaded rubber compound from the roll mill and put it into a foaming and vulcanizing molding process to carry out the vulcanizing molding work to obtain the finished products of the dumbbell sleeve and the sleeve cover.

[0018] As a further solution of the present invention: The reinforcing agent is a fumed silica material.

[0019] As a further solution of the present invention: The control agent is a hydroxyl silicone oil material, and the function of the control agent is to improve the processing performance of silica gel and enhance the flexibility of silica gel.

[0020] As a further solution of the present invention: In the dumbbell sleeve preparation step, a reinforcing additive can also be added to improve the structural performance of the dumbbell sleeve; and the reinforcing additive, according to the weight ratio, includes but is not limited to one or a mixture of more than one of: 1 - 2 parts of antioxidant, 10 - 20 parts of flame retardant, and 3 - 5 parts of anti - corrosive agent.

[0021] As a further solution of the present invention: The antioxidant is pentaerythritol tetrakis [β - (3,5 - di - tert - butyl - 4 - hydroxyphenyl) propionate].

[0022] As a further solution of the present invention: The flame retardant is aluminum hydroxide material.

[0023] As a further solution of the present invention: the corrosion inhibitor is a polyethylene glycol material.

[0024] The beneficial effects of the present invention: The dumbbell structure as a whole is composed of a dumbbell sleeve made of silica gel material and a weight body filled inside the dumbbell sleeve. The dumbbell sleeve made of silica gel material is a soft structure as a whole and has a protective performance; it can prevent the user from being injured by the dumbbell falling and hitting or colliding with the dumbbell during use.

[0025] At the same time, the dumbbell sleeve has excellent wear resistance, pressure resistance, tension and flexibility; it also has better chemical stability and resistance to sweat invasion, can prevent the dumbbell from breaking, peeling, etc. after long-term use, and can effectively improve the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the present invention.

[0027] Figure 2 It is a schematic exploded view of the structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. It should be understood that the present application is not limited by the exemplary embodiments disclosed herein. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0031] Please refer to Figure 1-2, in the embodiments of the present invention, a silica gel foamed weighted dumbbell includes: a dumbbell sleeve 1 foamed from silica gel material, the dumbbell sleeve 1 is a hollow structure, and a weight body (not shown in the figure) for realizing the weight of the dumbbell is filled inside the dumbbell sleeve 1;

[0032] Among them, the dumbbell sleeve 1 made of silica gel material is a soft structure as a whole and has a protective performance; it can prevent the user from being injured by the falling of the dumbbell or colliding with the dumbbell during use;

[0033] The function of the weight body is to realize the shape support of the dumbbell structure and at the same time achieve the effect of weighting; the user can select dumbbell structures with different weight weight bodies according to different usage requirements to meet the usage needs.

[0034] Further, filling ports 11 for filling the weight body are provided at both ends of the dumbbell sleeve 1, and a sleeve cover body 2 for sealing the filling port 11 is formed on the filling port 11.

[0035] In order to realize the preparation of the above-mentioned silica gel foamed weighted dumbbell, the embodiments of the present invention also provide a preparation method of the silica gel foamed weighted dumbbell, which is made of the following proportion of materials: 30-35% of silica gel, 45-60% of iron powder, and 10% of auxiliary additives;

[0036] The auxiliary additives include: 5% of iron powder catalyst and 5% of iron powder curing agent;

[0037] It includes the following preparation steps:

[0038] S1: Use silica gel as the base material of the dumbbell sleeve, add it to a plasticator, and perform the forming work of the dumbbell sleeve and the sleeve body; then perform the surface treatment of the dumbbell sleeve and the sleeve body, and increase the smoothness of the product feel by removing burrs and spraying oil;

[0039] S2: Mix iron powder, iron powder catalyst and iron powder curing agent in equal proportion to form a weight filling material; and fill it into the dumbbell sleeve from the filling port, and form a weight body structure after curing;

[0040] S3: Send the filled dumbbell sleeve and the sleeve body into a heating and foaming device, and make the dumbbell sleeve and the sleeve body foam and form by heating and baking, and make the sleeve body fixed on the dumbbell sleeve to drive the filling port, and complete the preparation of the silica gel foamed weighted dumbbell.

[0041] During the preparation process, the component ratio between silica gel and iron powder can be adjusted according to different weight requirements to realize the weight adjustment of the dumbbell structure.

[0042] Furthermore, the silicone matrix material of the dumbbell sleeve 1 is a modified silicone material; by weight ratio, it includes: 40-60 parts of silicone, 20-30 parts of reinforcing agent, 5-10 parts of curing agent, 5-10 parts of controlling agent, 3-5 parts of catalyst, 1-2 parts of lubricant, and 1-2 parts of vulcanizing agent;

[0043] It includes the following preparation steps:

[0044] S1: Add silicone into a plasticator and knead at room temperature for 3-5 min; then add the curing agent in batches, and knead for 5-10 min each time after adding the curing agent until the curing agent is completely dispersed;

[0045] S2: Add the curing agent, controlling agent, catalyst, and lubricant into the plasticator and continue to knead for 10-15 minutes to fully mix each component;

[0046] S3: Take out the kneaded rubber compound from the plasticator and put it into an open mill, and thin pass it 3-5 times on the open mill to remove the air bubbles in the rubber compound; then add the vulcanizing agent and mix evenly;

[0047] S4: Take out the kneaded rubber compound from the open mill and put it into a foaming vulcanization molding machine to carry out vulcanization molding work to obtain the finished products of the dumbbell sleeve 1 and the sleeve cover 2.

[0048] Among them:

[0049] Preferably, the reinforcing agent is a fumed silica material, and the function of the reinforcing agent is: to make the dumbbell sleeve 1 made of silicone material have better structural strength and wear resistance.

[0050] Preferably, the controlling agent is a hydroxyl silicone oil material, and the function of the controlling agent is: to improve the processing performance of silicone and improve the flexibility of silicone.

[0051] The catalyst, curing agent, lubricant, and vulcanizing agent are used as the forming auxiliary aids for the silicone dumbbell sleeve 1 to improve the processing performance of the silicone dumbbell sleeve 1 and improve the forming efficiency.

[0052] Furthermore, in the preparation steps of the dumbbell sleeve 1, a reinforcing auxiliary agent can also be added to improve the structural performance of the dumbbell sleeve 1; and the reinforcing auxiliary agent, by weight ratio, includes but is not limited to: one or a mixture of more than one of 1-2 parts of antioxidant, 10-20 parts of flame retardant, and 3-5 parts of corrosion inhibitor.

[0053] Among them, preferably, the antioxidant is pentaerythritol tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] (antioxidant 1010), and the function of the antioxidant is: to prevent the aging of silicone and improve its weather resistance.

[0054] Preferably, the flame retardant is aluminum hydroxide material, and the function of the flame retardant is to improve the fire resistance of the silica gel.

[0055] Preferably, the corrosion inhibitor is polyethylene glycol material, and the function of polyethylene glycol is to improve the ability of the silica gel to resist sweat attack.

[0056] It should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0057] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A silicone foam weight-bearing dumbbell, characterized in that: include: The dumbbell cover is made of foamed silicone material and has a hollow structure. The interior of the dumbbell cover is filled with a counterweight body for achieving dumbbell weight counterweighting.

2. A silicone foam weight-bearing dumbbell according to claim 1, characterized in that: Both ends of the dumbbell sleeve are provided with filling ports for filling the counterweight body, and the filling ports are formed with sleeve shell covers for sealing the filling ports.

3. A method for preparing a silicone foam weight-bearing dumbbell, used for preparing a silicone foam weight-bearing dumbbell as claimed in claim 1, characterized in that: Made of the following materials: 30-35% silica gel, 45-60% iron powder and 10% auxiliary agent; Auxiliary additives include: 5% iron powder catalyst and 5% iron powder curing agent; The method comprises the following preparation steps: S1: Add silicone as the base material of the dumbbell cover into the mold, put it into the hydraulic press to form the dumbbell cover and the cover shell; then perform surface treatment on the dumbbell cover and the cover shell, by deburring and spraying oil, to increase the smoothness of the product; S2: Mixing iron powder, iron powder catalyst and iron powder curing agent in equal proportions to form a counterweight filler; and filling the mixture into the dumbbell sleeve from the filling port, and forming a counterweight structure after curing; S3: The filled dumbbell cover and cover shell are sent to the heating foaming equipment, and the dumbbell cover and cover shell are foamed and formed by heating, baking and foaming, and the cover shell is fixed and formed on the filling port driven by the dumbbell cover, thereby completing the preparation of the silicone foam weight-bearing dumbbell.

4. The method for preparing a silicone foam weight-bearing dumbbell according to claim 2, characterized in that: The silicone base material of the dumbbell cover is a modified silicone material; According to the weight ratio, it includes: 40-60 parts of silica gel, 20-30 parts of reinforcing agent, 5-10 parts of curing agent, 5-10 parts of controlling agent, 3-5 parts of catalyst, 1-2 parts of lubricant, and 1-2 parts of vulcanizing agent; The method comprises the following preparation steps: S1: Add silica gel to a plasticizer and mix at room temperature for 3-5 minutes; then add curing agent in batches and mix for 5-10 minutes after each addition of curing agent until the curing agent is completely dispersed; S2: Add curing agent, control agent, catalyst and lubricant into the plasticator, and continue mixing for 10-15 minutes to fully mix the components; S3: Take the mixed rubber material out of the plasticator and put it into the open mixer. Pass it through the open mixer for 3-5 times to remove the bubbles in the rubber material. Then add the vulcanizing agent and mix it evenly. S4: taking the mixed rubber material out of the open mixer, putting it into the foaming vulcanization molding, and performing the vulcanization molding work to obtain the finished dumbbell sleeve and the sleeve cover.

5. The method for preparing a silicone foam weight-bearing dumbbell according to claim 3, characterized in that: The reinforcing agent is fumed silica material.

6. The method for preparing a silicone foam weight-bearing dumbbell according to claim 3, characterized in that: The control agent is a hydroxy silicone oil material. The function of the control agent is to improve the processing performance of silicone and increase the flexibility of silicone.

7. The method for preparing a silicone foam weight-bearing dumbbell according to claim 3, characterized in that: In the dumbbell cover preparation step, a reinforcing agent can also be added to improve the structural performance of the dumbbell cover; and the reinforcing agent includes, but is not limited to, a mixture of one or more of 1-2 parts of antioxidant, 10-20 parts of flame retardant and 3-5 parts of corrosion inhibitor in terms of weight ratio.

8. The method for preparing a silicone foam weight-bearing dumbbell according to claim 7, characterized in that: The antioxidant is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate.

9. The method for preparing a silicone foam weight-bearing dumbbell according to claim 7, characterized in that: The flame retardant is aluminum hydroxide material.

10. The method for preparing a silicone foam weight-bearing dumbbell according to claim 7, characterized in that: The anti-corrosion agent is polyethylene glycol material.

Images