Angle grinder cushioning structure

Abstract

The utility model relates to the technical field of angle grinders, and discloses an angle grinder cushioning structure which comprises a machine body, a base integrated with the machine body and a multi-layer composite cushioning bandage arranged on the base. The base is made of high-strength engineering plastics, a metal reinforcing ring is embedded in the base, the base is of a U-shaped groove body structure, and staggered reinforcing ribs are arranged in the groove body. The multi-layer composite cushioning bandage comprises an outer protective layer, a middle damping layer and an inner comfortable layer, the multi-layer composite cushioning bandage is detachably connected with the base through a high-strength nylon fastener tape, and the base is provided with a precise clamping groove system used for installing the nylon fastener tape. Through the innovative multi-layer composite damping design, the vibration transmissibility is lower than 0.15 within the working rotating speed range of 2800-11000 rpm, and the working vibration is effectively reduced by 90% or above; after 100,000 times of reciprocating bending tests, the damping performance attenuation does not exceed 5%; the product has the advantages of being stable in structure, good in damping effect, long in service life, convenient to maintain and the like, and can be widely applied to damping systems of various angle grinders.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of angle grinders, particularly relates to an angle grinder shock absorption structure, aiming to improve operation stability and use comfort through innovative shock absorption technology. BACKGROUND

[0002] In the prior art, as a common electric tool, angle grinders are widely used in metal processing, wood cutting, stone polishing and other fields. However, the traditional design of angle grinders often has a large vibration problem, which not only affects the processing accuracy, but also causes the operator to be tired, and even may cause occupational diseases. The current market shock absorption solutions mainly focus on simple elastic material coating of the handle part or the use of basic rubber pads, which often have limited effect and short service life.

[0003] In particular, some designs use ordinary rubber shock absorption elements, which not only have unsatisfactory shock absorption effect, but also are prone to aging deformation after long-term use, losing the shock absorption effect. In addition, the existing shock absorption structure is not reliable in connection with the machine body, and is easy to loosen or fall off during use. SUMMARY

[0004] The present application provides an angle grinder shock absorption structure that can effectively reduce working vibration, improve operation stability and prolong service life.

[0005] One of the purposes of the present application is achieved by the following technical solution: an angle grinder shock absorption structure, comprising: a machine body; a base integrated with the machine body, the base being arranged at the holding part of the machine body, the base being made of high-strength engineering plastic, having a metal reinforcing ring embedded inside, and having a "concave" groove structure, the groove inside being provided with staggered reinforcing ribs; a multi-layer composite shock absorption band arranged on the base, the multi-layer composite shock absorption band comprising an outer protective layer, an intermediate shock absorption layer and an inner comfort layer, wherein the intermediate shock absorption layer has a corrugated structure, the corrugated structure being uniformly distributed in the transverse and longitudinal directions to ensure omnidirectional shock absorption effect, and the intermediate shock absorption layer has a honeycomb shock absorption structure; and the multi-layer composite shock absorption band is detachably connected with the base through a high-strength nylon buckle, and the base is provided with a precision slot system for mounting the nylon buckle. The beneficial effects of this technical solution are: through the "concave" groove structure and the internal staggered reinforcing ribs of the base, combined with the embedded metal reinforcing ring, the overall structural strength is significantly improved; the innovative design of the multi-layer composite shock absorption band, especially the combination of the corrugated structure and the honeycomb shock absorption structure of the intermediate shock absorption layer, achieves omnidirectional shock absorption effect; and the use of high-strength nylon buckle and precision slot system ensures the reliability of the connection and facilitates maintenance and replacement.

[0006] Preferably, the intermediate damping layer is made of TPE material with Shore A hardness of 45, thickness of 8±0.5mm, the honeycomb damping structure has a pore size of 3mm, a pitch of 2mm and a porosity of 65%; the corrugated structure has a pitch of 4±0.2mm, a depth of 2.8±0.1mm, a compression deformation rate of not more than 15% and a compression permanent deformation rate of not more than 5%; the outer protective layer is made of 3D mesh material, with a thickness of 1.2mm, and is bonded to the damping layer by using environmentally friendly hot melt adhesive, with a peel strength of not less than 12N / cm. The beneficial effects of the scheme are: by accurately controlling the material hardness and structure parameters, the damping layer has ideal elastic deformation characteristics; the honeycomb structure provides excellent buffering performance; the corrugated structure ensures long-lasting damping effect; the selection of the outer protective material and the optimization of the bonding process ensure the durability and safety of the product.

[0007] Compared with the prior art, the present application has the following advantages:

[0008] Through the innovative multi-layer composite damping strap design, the vibration transmission rate is less than 0.15 in the working speed range of 2800-11000rpm, effectively reducing the working vibration by more than 90%; the base adopts a "concave" groove structure of high-strength engineering plastic combined with a metal reinforcing ring, and the interlaced reinforcing rib design significantly improves the overall strength and stability; the intermediate damping layer innovatively uses TPE material with Shore A hardness of 45 and designs a corrugated and honeycomb double damping structure, so that the product has a damping performance attenuation of not more than 5% after 100,000 times of reciprocating bending test, and the overall service life is more than 2 years; the humanized design of an adjustable range of 150-220mm combined with the application of 3D mesh material (air permeability of 3000g / m² / 24h) greatly improves the use comfort; the use of high-frequency heat sealing process and plasma surface treatment and other advanced processes ensures that the product has excellent interlayer bonding strength and durability; all materials meet the RoHS environmental protection certification and the EU REACH regulation requirements, and remain stable in a wide temperature range of-20℃ to 60℃ and reach the IPX4 protection level; the modular design facilitates maintenance and replacement, and the standardized components reduce maintenance costs, not only improving work efficiency, but also effectively reducing the risk of occupational diseases, creating significant economic benefits for enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 is a working schematic diagram of the angle grinder of the present application;

[0010] Fig. 2 is a structural schematic diagram of the base 031 in the position of the angle grinder body;

[0011] Fig. 3 is a whole schematic diagram of the body 01 part.

[0012] Marked in the figure: body 01, multi-layer composite shock absorption strap 02, base 031, metal reinforcing ring 032. DETAILED DESCRIPTION

[0013] The application will be further described below in conjunction with the embodiments represented by all the drawings:

[0014] Example 1:

[0015] Figs. 1-3 As shown, a kind of angle grinder shock absorption structure, the base 031 of body 01 integral, base 031 is preferably set in body holding part. Base 031 is the high-strength engineering plastic structure of integral production with body 01, surface uses anti-slip texture processing, improves operating stability. The shock absorption structure adopts multi-layer composite shock absorption strap 02 design, including outer protective layer, intermediate shock absorption layer and inner comfort layer, to form complete shock absorption system. To improve overall strength, base 031 is embedded metal reinforcing ring 032 when injection molding, and adopts "concave" shape groove structure, groove width 38mm, depth 22mm, wall thickness 4.5mm, it is equipped with staggered reinforcing rib inside.

[0016] The structural features of base 031 include: using modified PC / ABS engineering plastic material, with excellent mechanical strength and wear resistance;Surface is treated by plasma, to improve the bonding strength of strap;Adopting integrated injection molding process, to ensure the structural integrity;Internal design has the precision slot system for installing strap fixing assembly, slot depth 6±0.2mm, pitch 42mm, to ensure the stability of strap installation. To enhance the shock absorption effect, a special corrugated support structure is designed inside the base 031, which is made of high-strength carbon fiber reinforced composite material, and the surface is treated by plasma.

[0017] The main structural features of multi-layer composite shock absorption strap 02 are as follows: base connecting part uses high-strength nylon buckle to fix, fixed strength ≥80N, contact area not less than 45cm², the surface of buckle is treated by special process, to improve the service life to more than 10000 times. The intermediate shock absorption layer uses TPE material with Shore A 45 hardness, thickness 8±0.5mm, adopts honeycomb shock absorption structure, aperture 3mm, pitch 2mm, porosity reaches 65%. The strap body width is 40±2mm, length adjustable range is 150-220mm, surface is treated by anti-slip pile surface, seam strength ≥120N / 5cm. The overall structure maintains stable shock absorption performance in the temperature range of-20℃ to 60℃.

[0018] The shock-absorbing layer adopts an innovative corrugated structure design with a corrugation spacing of 4±0.2mm and a depth of 2.8±0.1mm, made of high-elasticity TPE material. This material has excellent resilience, with a compression deformation rate ≤15% and a compression permanent deformation rate ≤5%. The corrugated structure is uniformly distributed in both the transverse and longitudinal directions, ensuring omnidirectional shock-absorbing effect. The outer layer uses 3D mesh material with a thickness of 1.2mm, bonded to the shock-absorbing layer with environmentally friendly hot melt glue, with a peel strength ≥12N / cm. The mesh material uses modified nylon 6 fibers, which have excellent wear resistance and air permeability, with an air permeability of 3000g / m² / 24h.

[0019] The overall structure adopts an advanced modular design, and the manufacturing process mainly includes the following steps: first, the shock-absorbing layer is embedded into the fabric outer layer through high-frequency heat sealing process, with a heat sealing temperature controlled at 165±5℃, a pressure of 0.6MPa, and a time of 3.5s; then, the fixing band and adjusting buckle are made using ultrasonic sewing technology, with a sewing strength ≥150N / 5cm; finally, the Velcro fixing system is installed, with imported high-strength nylon material used for the Velcro, with a fastening force ≥12N / cm². All materials are RoHS environmentally friendly certified, ensuring safe use.

[0020] In actual application, this shock-absorbing structure exhibits excellent performance: through experimental testing, the vibration transmission rate is less than 0.15 within the working speed range of 2800-11000rpm of the angle grinder, effectively reducing more than 90% of the working vibration. Durability testing shows that after 100,000 times of reciprocating bending test, the shock-absorbing performance decays by no more than 5%. After temperature cycle testing (-20℃ to 60℃, 1000 cycles), the product's performance indicators remain stable. Waterproof testing shows that the product functions well under IPX4 protection level.

[0021] The band-type shock-absorbing structure of this embodiment has the following significant advantages: it adopts ergonomic design, and the band can be adjusted according to different user hand shapes; the structure of the multi-layer composite shock-absorbing band 02 provides durable shock-absorbing effect, with a service life of more than 2 years; the air-permeable design ensures comfort during long-term use, effectively reducing hand fatigue; the modular structure is convenient for maintenance and replacement, with low replacement cost; the selected materials all meet the requirements of the EU REACH regulation, with excellent environmental performance. Through special material combination and innovative structure design, this band-type shock-absorbing system successfully realizes high-efficiency, stable, and durable shock-absorbing effect.

[0022] Under high-intensity working conditions, this structure exhibits excellent adaptability: the vibration attenuation performance is stable and not affected by temperature changes in the working environment; the flexibility of the band structure makes operation more flexible while providing reliable tool fixation; the unique design of the shock-absorbing layer ensures ideal shock-absorbing effect under different working conditions. These features make this structure particularly suitable for industrial application scenarios that require precise operation.

[0023] The specific embodiments described herein are merely illustrative of the spirit of the application. Various modifications or changes in addition or substitution to the specific embodiments described herein can be made by those skilled in the art without departing from the spirit of the application or exceeding the scope of the technical solutions defined by the appended claims.

Claims

1. An angle grinder cushioning structure, characterized in that, It comprises: a machine body; a base integrated with the machine body, which is arranged at a holding position of the machine body, made of high-strength engineering plastic, internally embedded with a metal reinforcing ring, and has a "concave" groove structure, the groove body is provided with staggered reinforcing ribs; a multi-layer composite shock-absorbing bandage arranged on the base, which comprises an outer protective layer, an intermediate shock-absorbing layer and an inner comfortable layer, wherein the intermediate shock-absorbing layer has a corrugated structure, which is uniformly distributed in the transverse and longitudinal directions to ensure omnidirectional shock-absorbing effect, and has a honeycomb shock-absorbing structure; and the multi-layer composite shock-absorbing bandage is detachably connected with the base through a high-strength nylon buckle, and the base is provided with a precision slot system for mounting the nylon buckle.

2. The angle grinder shock-absorbing structure according to claim 1, characterized in that: the surface of the base has an anti-skid texture, the width of the groove body is 38 mm, the depth is 22 mm, and the wall thickness is 4.5 mm.

3. The angle grinder shock-absorbing structure according to claim 1, characterized in that: the base is made of modified PC / ABS engineering plastic material, and the surface is subjected to plasma treatment, the depth of the clamping groove of the precision slot system is 6±0.2 mm, and the interval is 42 mm.

4. The angle grinder shock-absorbing structure according to claim 1, characterized in that: the thickness of the intermediate shock-absorbing layer is 8±0.5 mm, the pore size of the honeycomb shock-absorbing structure is 3 mm, the interval is 2 mm, and the porosity is 65%.

5. The angle grinder shock-absorbing structure according to claim 1, characterized in that: the width of the bandage body of the multi-layer composite shock-absorbing bandage is 40±2 mm, the adjustable range of the length is 150-220 mm, the surface is subjected to anti-skid pile surface treatment, and the seam strength is not less than 120 N / 5 cm.

6. The angle grinder shock-absorbing structure according to claim 1, characterized in that: the interval of the corrugated structure is 4±0.2 mm, the depth is 2.8±0.1 mm, the compression deformation rate is not more than 15%, and the compression permanent deformation rate is not more than 5%.

7. The angle grinder shock-absorbing structure according to claim 1, characterized in that: the outer protective layer is made of 3D mesh material, the thickness is 1.2 mm, and is bonded with the shock-absorbing layer by using environmentally friendly hot melt adhesive, the peel strength is not less than 12 N / cm, the mesh material is made of modified nylon 6 fiber, and the air permeability is 3000 g / m² / 24 h.

8. The angle grinder shock-absorbing structure according to claim 1, characterized in that: the fixing strength of the high-strength nylon buckle is not less than 80 N, the contact area is not less than 45 cm², the buckle surface is subjected to special treatment, and the service life is not less than 10,000 times.

9. The angle grinder shock-absorbing structure according to claim 1, characterized in that: the shock-absorbing structure has a vibration transmission rate of less than 0.15 in the working speed range of 2800-11000 rpm of the angle grinder, and maintains stable shock-absorbing performance in the temperature range of -20℃ to 60℃.

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