CN201687326U - Simple high-strength rotary buffer - Google Patents

Abstract

The utility model discloses a simple high-strength rotary buffer, which comprises a composite support, a rotary shaft core, a valve block, a sealing ring, a composite support outer sleeve and a sealing end cover, wherein the rotary shaft core is connected with the composite support in a switching way, the valve block is clamped on the rotary shaft core, the sealing ring is arranged between the composite support and the rotary shaft core, the composite support comprises the composite support outer sleeve, the composite support inner sleeve is tightly connected with the composite support outer sleeve in a clamping way, and the sealing end cover is arranged at the outer end of the; the inner cavity wall of the composite support outer sleeve is provided with a plurality of grooves, and the bottom end of the inner cavity of the composite support outer sleeve is provided with a positioning groove; the outer wall of the composite support inner sleeve is provided with an anti-rotation flange correspondingly matched with a groove on the inner cavity wall of the composite support outer sleeve, and the outer bottom end of the composite support inner sleeve and the bottom end of the inner cavity of the composite support outer sleeve are provided with positioning flanges correspondingly matched with positioning grooves. The utility model discloses simple structure, installation are easy, the assembly is simple and easy, compressive capacity is extremely strong, can reach the long-term life more than 6 ten thousand times.

Description

Simple high-strength rotary buffer

technical field

The utility model relates to a buffer device for reducing the closing impact force installed at the rotary hinge between the door, cover and the body of the refrigerator, toilet cover and other fields, especially relates to a heavy-duty flip product with convenient installation. A simple high-strength rotary buffer with long service life and strong pressure resistance.

Background technique

The existing rotary buffer includes a support and a buffer oil core connected to the support, wherein the support is generally processed and manufactured by a single alloy or plastic. One of its installation methods is shown in Figures 1 to 2. The outer circle of the buffer oil core 201 and the inner hole of the support 203 are tightly clamped in a tight fit to prevent the buffer oil core from loosening and retreating. Turn the groove 207 to prevent the buffer oil core from rotating. This method has the following defects: 1. The buffer oil core 201 and the support 203 are closely matched to prevent loosening. Due to the existence of manufacturing errors, the cooperation between the two will be too tight or too tight. Loose, when the fit is too tight, it is easy to crush the parts, and when the fit is too loose, the buffer oil core 201 is easy to loosen; 2, rely on the anti-rotation boss 205 of the buffer oil core and the anti-rotation groove 207 of the support to prevent rotation , when subjected to a higher torque, the soft side of the anti-rotation boss 205 and the anti-rotation groove 207 is easily crushed; 3. When the support 203 is made of plastic or a single metal, A. When the support 203 is made of plastic , the surface finish of the support can be better through polishing abrasives (such as electroplating, spraying, printing, etc.), which is easy to decorate the surface of the support product, but when the torque is high, the anti-rotation groove inside the support 207 is easy to crush; B. When the support 203 is made of alloy material or high-strength composite material, a. The surface of each product needs to be polished before surface decoration (such as electroplating, water transfer printing, etc.) ), which leads to a substantial increase in the surface treatment cost of the product; b. When the support is completely made of alloy materials, although the strength is high, the product cost is also greatly increased compared with plastic. The second installation method is as shown in Fig. 3 to Fig. 4. The buffer oil core 201 is installed in the inner hole of the support 203, and the anti-rotation is prevented by the anti-rotation boss 205 and the anti-rotation groove 207, and by the fastening screw 209 and the stopper. Withdrawing the outer cover 211 prevents the buffer oil core 201 from loosening and retreating. This method has the following defects: 1. In terms of preventing the buffer oil core 201 from loosening and retreating, the effect is slightly better than that of the installation method one, but due to the increase of the fastening screw 209 and the outer stopper. The cover 211 makes the assembly process complicated and increases the manufacturing cost of the product; 2. The anti-rotation is prevented by the anti-rotation boss of the buffer oil core and the anti-rotation groove of the support. When a higher torque is applied, the anti-rotation The soft side of the boss and the anti-rotation groove is easy to be crushed; 3. The support is made of a single plastic or a single metal. ), so that the surface finish of the support is better, and it is easy to decorate the surface of the support product. However, when the torque is high, the anti-rotation groove inside the support is easy to be crushed; B. When the support is made of alloy material or high-strength When using composite materials, a. The surface of each product needs to be polished before surface decoration treatment (such as: electroplating, spraying, printing, etc.), which will lead to a significant increase in the surface treatment cost of the product; b. When The support is entirely made of alloy material. Although the strength is high, the product cost is also greatly increased compared with plastic. It can be seen that the design and manufacture of the existing rotary buffer is not perfect, and further improvement is needed.

Utility model content

The purpose of this utility model is to overcome the above-mentioned defects of the prior art, and provide a simple high-strength rotary buffer with simple structure, easy installation, long service life and strong compression resistance.

In order to achieve the above purpose, the technical solution provided by the utility model is as follows: The utility model discloses a simple high-strength rotary buffer, which includes a composite support, a rotating shaft core connected to the composite support, and a The valve plate on the shaft core is arranged as a sealing ring between the composite support and the rotating shaft core. The composite support includes a composite support outer cover, a composite support inner cover closely clamped with the composite support outer cover, and a sealing end cover arranged on the outer end of the composite support cover; the inner cavity wall of the composite support cover is provided with A plurality of grooves, the bottom end of the inner cavity of the composite bearing outer casing is provided with a positioning groove; the outer wall of the composite bearing inner sleeve is provided with an anti-rotation flange corresponding to the groove of the inner cavity wall of the composite bearing outer casing, The outer bottom end of the inner sleeve of the composite support and the bottom end of the inner cavity of the outer sleeve of the composite bearing are positioning flanges corresponding to the positioning grooves; the inner cavity wall of the inner sleeve of the composite bearing is provided with two symmetrical The sealing rib is provided, and the middle part of the bottom end of the inner sleeve of the composite support is provided with a positioning hole; the sealing rib and the positioning hole are respectively closely connected with the corresponding parts of the rotating shaft core.

The composite bearing inner sleeve can be a high-strength composite bearing inner sleeve made of metal, alloy, new composite material, high-strength engineering plastic, or other high-strength new materials.

The composite support cover is made of PS, PP, ABS, PC and other materials with low cost, easy molding and surface decoration treatment.

The inner cover of the composite support and the outer cover of the composite support are integrally processed and formed.

The sealing end cap is tightly welded to the outer end of the composite bearing jacket.

The utility model has the advantages of simple structure, easy installation, simple assembly, strong pressure resistance, and a long service life of more than 60,000 times, which is 5 times that of the existing rotary buffer. times, and it does not increase too much cost, so it is worthy of vigorous promotion and use in the industry.

Description of drawings

The specific technical solution of the simple high-strength rotary buffer described in the utility model will be further described below in conjunction with the accompanying drawings and preferred embodiments.

Fig. 1 is an exploded view of the installation mode 1 of the existing rotary buffer;

Fig. 2 is a cross-sectional structure diagram of the first installation method of the existing rotary buffer;

Fig. 3 is an exploded view of the second installation mode of the existing rotary buffer;

Fig. 4 is a sectional structure diagram of the second installation mode of the existing rotary buffer;

Fig. 5 is a perspective view of the utility model;

Figure 6 is an exploded view of the composite bearing of the present invention;

Fig. 7 is a three-dimensional view of the inner sleeve of the composite bearing of the present invention;

Fig. 8 is a left view of the utility model;

Fig. 9 is the A-A sectional structure diagram of Fig. 8;

Fig. 10 is a sectional structure diagram of the first embodiment of the rotating shaft core;

Fig. 11 is an exploded view of the first embodiment of the rotating shaft core;

Fig. 12 is a sectional structure diagram of the second embodiment of the rotating shaft core;

Fig. 13 is an exploded view of the second embodiment of the rotating shaft core;

Detailed ways

Referring to the simple high-strength rotary buffer shown in Figures 5 to 9, it includes a composite support 1, a rotating shaft core 3 connected to the composite support, a valve plate 4 clamped on the rotating shaft core, and a The sealing ring 5 between the composite support 1 and the rotating shaft core 3, the composite support 1 includes a support outer cover 12, and the composite support inner cover 14 tightly clamped with the composite support outer cover is arranged outside the composite support outer cover The sealing end cap 16 at the end; the inner cavity wall of the composite bearing outer cover 12 is provided with several grooves 121, and the bottom end of the inner cavity of the composite bearing outer cover is provided with a positioning groove 123; the outer wall of the composite bearing inner sleeve 14 An anti-rotation flange 141 correspondingly matched with the cavity wall groove 121 of the composite bearing overcoat is provided. Corresponding to the matching positioning flange 143; the inner cavity wall of the inner sleeve 14 of the composite support is provided with two symmetrical sealing ribs 145, 147 extending toward the center, and the middle part of the inner cavity bottom of the inner sleeve of the composite bearing is provided with a positioning The hole 149; the sealing ribs 145, 147 and the positioning hole 149 are closely connected with the corresponding parts of the rotating shaft core 3 respectively. .

The composite bearing inner sleeve 14 can be a high-strength composite bearing inner sleeve made of metal, alloy, new composite material, high-strength engineering materials, or other high-strength new materials.

The composite bearing cover 12 is made of materials such as PS, PP, ABS, PC, etc., which are low in cost, easy to shape, and easy to carry out surface decoration treatment.

The composite bearing inner sleeve 14 and the composite bearing outer sleeve 12 are integrally processed and formed, but the materials used in the composite bearing outer sleeve 12 and the composite bearing inner sleeve 14 are very different, and the material of the composite bearing inner sleeve 14 emphasizes High strength, the material of the composite bearing jacket 12 is easy to process and shape and easy to surface treatment, so that high-quality and high-quality products can be produced at an appropriate cost, and the cost performance of the product is greatly improved.

The sealing end cap 16 is tightly welded to the outer end of the composite bearing jacket 14, but it is not limited to welding, and equivalent techniques such as threaded screw connection, buckle buckle connection and the like can also be used.

Referring to FIGS. 10 to 11 , in the first embodiment of the rotating shaft core, the valve plate 4 is clamped on the side of the one-way valve plate hole 32 of the rotating shaft core 3 .

Referring to FIGS. 12 to 13 , in the second embodiment of the rotating shaft core, the valve plate 4 is inserted into the one-way valve hole 34 of the rotating shaft core 3 .

Please refer to the utility model patent (patent application number 200920175256.0) previously applied by the applicant for the internal structure and working principle of the above two rotating shaft core embodiments, and will not be repeated here.

What has been described above is only the principle and preferred embodiments of the present utility model. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the principle of the utility model, which should also be regarded as belonging to the protection scope of the utility model.

Claims (5)

1. A simple high-strength rotary buffer, including a composite support, a rotating shaft core connected to the composite support, a valve plate clamped on the rotating shaft core, and arranged between the composite support and the rotating shaft core The sealing ring is characterized in that: the composite support includes a composite support outer cover, a composite support inner cover tightly clamped with the composite support cover, and a sealing end cover arranged at the outer end of the composite support cover; the composite support The inner cavity wall of the outer cover is provided with several grooves, and the bottom end of the inner cavity of the composite support outer cover is provided with positioning grooves; the outer wall of the inner cover of the composite support is provided with a corresponding The matching anti-rotation flange, the outer bottom end of the inner sleeve of the composite support and the bottom end of the inner cavity of the outer sleeve of the composite bearing are positioning flanges corresponding to the positioning groove; the inner cavity wall of the inner sleeve of the composite bearing is provided with There are two symmetrical sealing ribs extending toward the center, and a positioning hole is opened in the middle of the bottom end of the inner cavity of the inner sleeve of the composite support; the sealing ribs and the positioning holes are respectively closely connected with the corresponding parts of the rotating shaft core. 2. The simple high-strength rotary buffer according to claim 1, characterized in that: the inner sleeve of the composite support and the outer sleeve of the support are integrally formed. 3. The simple high-strength rotary buffer according to claim 1, characterized in that: the sealing end cover is closely connected with the outer end of the composite support sleeve. 4. The simple high-strength rotary buffer according to claim 1, wherein the valve plate is clamped on the side of the hole of the one-way valve plate of the rotating shaft core. 5. The simple high-strength rotary buffer according to claim 1, wherein the valve plate is plugged into the one-way valve hole of the rotary shaft core.

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