Universal coupling

Abstract

The invention relates to the technical field of machinery, and discloses a universal coupling which comprises a universal coupling body. According to the universal coupling, the protective sleeve is installed on the surface of the connector, then the telescopic sleeve is installed on the surface of the fixing plate and the surface of the main body, and then an anti-skid pad is attached to the surface of the connector, so that the anti-skid effect on the protective sleeve and the telescopic sleeve is achieved, and the phenomenon that the protective sleeve and the telescopic sleeve move is avoided; through installation of the protective sleeve and the telescopic sleeve, the effects of shock absorption and impact resistance on the main body, the fixing plate and the interface in the working state are achieved, and the problems that in the using process of an existing universal coupling, the universal coupling is a fragile connecting piece in mechanical equipment, vibration and impact of a mechanical transmission system easily cause damage to the universal coupling, and the service life of the universal coupling is prolonged are solved. And meanwhile, maintenance needs to be paid attention to in the using process, otherwise, the performance is reduced due to abrasion and other reasons.

Description

TECHNICAL FIELD

[0001] The present application relates to the mechanical field, and in particular to a universal joint. BACKGROUND

[0002] The universal joint, also known as universal joint or universal transmission, is a mechanical transmission device that can withstand high-speed rotation and large-angle rotation while transmitting the rotation direction to another shaft, thereby playing the role of transmitting power and connecting shafts. There are various structural types of universal joints, such as cross shaft type, ball cage type, ball fork type, bump type, ball pin type, ball hinge type, ball hinge plunger type, three-pin type, three-pronged rod type, three-ball pin type, and hinge rod type. The most commonly used is the cross shaft type, followed by the ball cage type. In practical applications, according to the size of the transmitted torque, it is divided into heavy, medium, light and small types.

[0003] A small universal joint is disclosed in a Chinese patent (Grant Announcement No. CN 210178785 U), which has a simple structure and low cost.

[0004] At present, universal joints are often used in daily work to facilitate the continuous rotation of two shafts that are not on the same axis and reliably transmit torque and motion in the presence of an axis angle. However, the existing universal joints are vulnerable to damage due to the vibration and impact of the mechanical transmission system during use. In addition, maintenance is required during use, otherwise performance may be reduced due to wear and tear. Furthermore, the interface is prone to falling off during rotation. Therefore, improvements are needed for the universal joint.

[0005] In order to solve the above problems, we have made improvements and propose a universal joint. SUMMARY

[0006] The present application aims to provide a universal joint to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] A universal joint comprises a universal joint body, the universal joint body comprises a main body, both sides of the inner cavity of the main body are movably connected with a rotating block, the top and bottom of the rotating block are movably connected with a fixed plate, the outer side of the fixed plate is fixedly connected with an interface, and the surface of the main body is provided with a protection mechanism.

[0009] The protection mechanism comprises a telescopic sleeve, the inner cavities of the telescopic sleeves are movably connected to the surfaces of the main body and the fixed plate, both sides of the telescopic sleeves are fixedly connected with a protective sleeve, and the inner cavity of the protective sleeve is movably connected to the surface of the interface.

[0010] As a further scheme of the present application: the inner cavity of the protective sleeve is fixedly connected with an anti-skid pad, the inner cavity of the anti-skid pad is fixedly connected to the surface of the interface, and the protective sleeve and the telescopic sleeve are both made of rubber material.

[0011] As a further scheme of the present application: the inner cavity of the protective sleeve is fixedly connected with an anti-skid pad, the inner cavity of the anti-skid pad is fixedly connected to the surface of the interface, and the protective sleeve and the telescopic sleeve are both made of rubber material.

[0012] As a further scheme of the present application: the inner cavity of the protective sleeve is fixedly connected with an anti-skid pad, the inner cavity of the anti-skid pad is fixedly connected to the surface of the interface, and the protective sleeve and the telescopic sleeve are both made of rubber material.

[0013] As a further scheme of the present application: the inner cavity of the protective sleeve is fixedly connected with an anti-skid pad, the inner cavity of the anti-skid pad is fixedly connected to the surface of the interface, and the protective sleeve and the telescopic sleeve are both made of rubber material.

[0014] As a further scheme of the present application: the inner cavity of the protective sleeve is fixedly connected with an anti-skid pad, the inner cavity of the anti-skid pad is fixedly connected to the surface of the interface, and the protective sleeve and the telescopic sleeve are both made of rubber material.

[0015] As a further scheme of the present application: the inner cavity of the protective sleeve is fixedly connected with an anti-skid pad, the inner cavity of the anti-skid pad is fixedly connected to the surface of the interface, and the protective sleeve and the telescopic sleeve are both made of rubber material.

[0016] As a further scheme of the present application: the inner cavity of the protective sleeve is fixedly connected with an anti-skid pad, the inner cavity of the anti-skid pad is fixedly connected to the surface of the interface, and the protective sleeve and the telescopic sleeve are both made of rubber material.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1、The present application through the installation of protective cover to the surface of the interface, then make the telescopic cover is installed on the surface of the fixed plate and the main body, and then through the non-slip pad with the surface of the interface, so as to achieve the effect of anti-skid of protective cover and telescopic cover, avoid the phenomenon of protective cover and telescopic cover movement, through the installation of protective cover and telescopic cover, realize the shockproof effect of the main body, fixed plate and interface in working state, solve the existing universal joint in the process of use, universal coupling is a kind of connecting piece in mechanical equipment, mechanical transmission system vibration and impact is easy to cause its damage, at the same time need to pay attention to maintenance in the process of use, otherwise will cause performance decline because of wear and tear and other reasons, and the interface is connected, in the process of rotation, easy to appear the problem of falling off.

[0019] 2、The present application through the setting of non-slip pad, achieve the effect of anti-skid of protective cover and telescopic cover in working state, avoid the phenomenon of protective cover and telescopic cover in the working process, through the material of protective cover and telescopic cover is rubber, make the rotating block and fixed plate can smoothly rotate in the inner cavity of telescopic cover and protective cover, through hand rotating the rotating plate, through the rotation of the rotating plate drive screw rotation, then under the action of screw thread make the clamping plate move to the inside, then make the spring be elongated, then make the inside of clamping plate and the surface of mechanical parts are attached, in turn realize the mechanical parts and interface after installation prevent falling off. DETAILED DESCRIPTION

[0020] Figure 1 It is a structure diagram of a universal joint;

[0021] Figure 2 It is a structure connection diagram of the main body in a universal joint;

[0022] Figure 3 It is a structure connection diagram of telescopic cover in a universal joint;

[0023] Figure 4 It is a disassembly connection diagram of fixed ring and moving sleeve in a universal joint;

[0024] Figure 5 It is a structure diagram of a universal joint Figure 4 The local enlarged diagram of A in the middle.

[0025] In the figure: 1, universal joint body; 101, interface; 102, fixed plate; 103, shaft one; 104, limit plate one; 105, limit plate two; 106, main body; 107, shaft two; 108, rotating block; 2, anti-falling mechanism; 201, fixed ring; 202, limit ring; 203, round plate; 204, clamping plate; 205, spring; 206, rotating plate; 207, screw; 208, moving sleeve; 209, screw sleeve; 3, protection mechanism; 301, protection sleeve; 302, telescopic sleeve; 303, non-slip pad. DETAILED DESCRIPTION

[0026] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0027] EMBODIMENT

[0028] Please refer to Figure 1 and 3 A universal joint, comprising a universal joint body 1, the universal joint body 1 comprises a main body 106, the two sides of the inner cavity of the main body 106 are movably connected with rotating blocks 108, the top and bottom of the rotating blocks 108 are movably connected with fixed plates 102, the outer side of the fixed plates 102 is fixedly connected with an interface 101, and the surface of the main body 106 is provided with a protection mechanism 3.

[0029] The protection mechanism 3 comprises telescopic sleeves 302, the inner cavities of the telescopic sleeves 302 are movably connected to the surfaces of the main body 106 and the fixed plates 102, the two sides of the telescopic sleeves 302 are fixedly connected with protection sleeves 301, and the inner cavities of the protection sleeves 301 are movably connected to the surface of the interface 101.

[0030] The inner cavity of the protective sleeve 301 is fixedly connected with the anti-skid pad 303, the inner cavity of the anti-skid pad 303 is fixedly connected to the surface of the interface 101, the protective sleeve 301 and the telescopic sleeve 302 are both made of rubber material, through the setting of the anti-skid pad 303, the anti-skid effect of the protective sleeve 301 and the telescopic sleeve 302 in the working state is achieved, the deviation of the protective sleeve 301 and the telescopic sleeve 302 in the working process is avoided, through the rubber material of the protective sleeve 301 and the telescopic sleeve 302, the rotating block 108 and the fixed plate 102 can smoothly rotate in the inner cavities of the telescopic sleeve 302 and the protective sleeve 301, the front side and the back side of the clamping plate 204 are fixedly connected with the springs 205, the outer side of the spring 205 is fixedly connected to the inner cavity of the moving sleeve 208, through the setting of the spring 205, when the screw rod 207 moves, the clamping plate 204 is driven to move, so that the generated force is absorbed, further, when the screw rod 207 loses the force, the clamping plate 204 returns to the original position, so that the clamping plate 204 can be guided by the spring 205, and the clamping plate 204 can be easily recovered by the operator.

[0031] Please refer to Figure 1 、 2 , 4 and 5, a universal joint, both sides of the inner cavity of the main body 106 are movably connected with the rotating shaft two 107, the surface of the rotating shaft two 107 is movably connected to the inner cavity of the rotating block 108, the inner side of the inner cavity of the rotating block 108 is movably connected with the rotating shaft one 103, the top and bottom of the surface of the rotating shaft one 103 are movably connected to the inner cavity of the fixed plate 102, through the setting of the rotating shaft two 107, the rotating block 108 can smoothly rotate on the surface of the rotating shaft two 107, through the setting of the rotating shaft one 103, the fixed plate 102 can smoothly rotate on the surface of the rotating block 108, so that the mechanical parts of different angles can be connected and rotated.

[0032] The top and bottom of the surface of the rotating shaft one 103 are fixedly connected with the limiting plate one 104, the inner side of the limiting plate one 104 is tightly combined with the outer side of the fixed plate 102, the front side and the back side of the surface of the rotating shaft two 107 are fixedly connected with the limiting plate two 105, the inner side of the limiting plate two 105 is tightly combined with the outer side of the main body 106, through the setting of the limiting plate one 104 and the limiting plate two 105, the limiting effect of the rotating shaft one 103 and the rotating shaft two 107 in the working state is achieved, the falling phenomenon of the rotating shaft one 103 and the rotating shaft two 107 in the working process is avoided.

[0033] The outer side of the interface 101 surface is equipped with anti-falling mechanism 2, the anti-falling mechanism 2 includes fixed ring 201, the outer side of the inner cavity of fixed ring 201 is movably connected with moving sleeve 208, the outer side of moving sleeve 208 is fixedly connected with circular plate 203, the top and bottom of the outer side of the inner cavity of moving sleeve 208 are fixedly connected with screw sleeve 209, the inner cavity of screw sleeve 209 is threadedly connected with screw rod 207, the inner side of screw rod 207 is movably connected with clamping plate 204, clamping plate 204 is arranged in annular structure, by hand rotating rotating plate 206, the rotation of rotating plate 206 drives screw rod 207 to rotate, then the clamping plate 204 moves inwards under the action of screw thread, then the spring 205 is elongated, then the inner side of clamping plate 204 is attached to the surface of mechanical parts, thereby realizing the anti-falling phenomenon after the installation of mechanical parts and interface 101.

[0034] The outer side of screw rod 207 is fixedly connected with rotating plate 206, the inner cavity of rotating plate 206 is provided with hand holding groove, and the number is multiple, by the setting of rotating plate 206, it is more convenient for the rotation of screw rod 207, then the mechanical parts are clamped and fixed, the inner side of moving sleeve 208 is fixedly connected with limiting ring 202, the surface of limiting ring 202 is movably connected in the inner cavity of fixed ring 201, the outer side of limiting ring 202 is tightly attached to the outer side of the inner cavity of fixed ring 201, by the setting of limiting ring 202, the moving sleeve 208 in the moving process is limited, avoiding the falling phenomenon of moving sleeve 208 in the moving process from the inner cavity of fixed ring 201.

[0035] The working principle of the present application is that: firstly, the protective sleeve 301 is installed on the surface of the interface 101, then the telescopic sleeve 302 is installed on the surface of the fixed plate 102 and the main body 106, and then the non-slip pad 303 is attached to the surface of the interface 101, so as to achieve the effect of preventing the protective sleeve 301 and the telescopic sleeve 302 from moving, and realize the effect of shock absorption and impact prevention of the main body 106, the fixed plate 102 and the interface 101 in the working state; secondly, the mechanical parts are inserted into the inner cavity of the interface 101, then the circular plate 203 is tightly attached to the surface of the mechanical parts, then the circular plate 203 is moved inward by the insertion of the mechanical parts, then the moving sleeve 208 is moved, then the limiting ring 202 is moved, then when the moving sleeve 208 reaches the specified position, the clamping plate 204 is moved inward by rotating the rotating plate 206, then the spring 205 is elongated, then the inner side of the clamping plate 204 is attached to the surface of the mechanical parts, thereby realizing the effect of preventing the mechanical parts from falling off after being installed in the interface 101; finally, due to the different angles of the mechanical parts during installation, the interface 101 is rotated, then the fixed plate 102 is rotated on the surface of the rotating shaft one 103, then the rotating block 108 is rotated on the surface of the rotating shaft two 107, thereby realizing the effect of connecting the parts with different angles and positions.

[0036] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A universal joint comprising a universal joint body (1), characterized in that: The universal joint body (1) comprises a main body (106), the two sides of the inner cavity of the main body (106) are movably connected with rotating blocks (108), the top and bottom of the rotating blocks (108) are movably connected with fixed plates (102), the outer side of the fixed plates (102) is fixedly connected with interfaces (101), and the surface of the main body (106) is provided with a protection mechanism (3). The protection mechanism (3) comprises telescopic sleeves (302), the inner cavities of the telescopic sleeves (302) are movably connected to the surfaces of the main body (106) and the fixed plates (102), the two sides of the telescopic sleeves (302) are fixedly connected with protective sleeves (301), and the inner cavities of the protective sleeves (301) are movably connected to the surfaces of the interfaces (101).

2. A universal joint according to claim 1, characterised in that: The inner cavities of the protective sleeves (301) are fixedly connected with anti-skid pads (303), the inner cavities of the anti-skid pads (303) are fixedly connected to the surfaces of the interfaces (101), and the protective sleeves (301) and the telescopic sleeves (302) are made of rubber material.

3. A universal joint according to claim 1, wherein: The two sides of the inner cavity of the main body (106) are movably connected with rotating shafts two (107), the surface of the rotating shafts two (107) is movably connected to the inner cavity of the rotating blocks (108), the inner sides of the inner cavities of the rotating blocks (108) are movably connected with rotating shafts one (103), and the top and bottom of the surface of the rotating shafts one (103) are movably connected to the inner cavities of the fixed plates (102).

4. A universal joint according to claim 3, characterised in that: The top and bottom of the surface of the rotating shafts one (103) are fixedly connected with limiting plates one (104), the inner side of the limiting plates one (104) is tightly attached to the outer side of the fixed plates (102), and the front side and back side of the surface of the rotating shafts two (107) are fixedly connected with limiting plates two (105).

5. A universal joint according to claim 1, characterized in that: The inner side of the limiting plates two (105) is tightly attached to the outer side of the main body (106).

6. A universal joint according to claim 5, characterised in that: The outer sides of the surfaces of the interfaces (101) are provided with anti-falling mechanisms (2), the anti-falling mechanisms (2) comprise fixed rings (201), the outer sides of the inner cavities of the fixed rings (201) are movably connected with moving sleeves (208), the outer sides of the moving sleeves (208) are fixedly connected with circular plates (203), the top and bottom of the inner cavities of the moving sleeves (208) are fixedly connected with screw sleeves (209), the inner cavities of the screw sleeves (209) are threadedly connected with screw rods (207), the inner sides of the screw rods (207) are movably connected with clamping plates (204), and the clamping plates (204) are in an annular structure.

7. A universal joint according to claim 5 wherein: The outer sides of the screw rods (207) are fixedly connected with rotating plates (206), the inner cavities of the rotating plates (206) are provided with hand holding grooves, and the number of the hand holding grooves is plural.

8. A universal joint according to claim 5 wherein: The inner sides of the moving sleeves (208) are fixedly connected with limiting rings (202), the surface of the limiting rings (202) is movably connected to the inner cavities of the fixed rings (201), and the outer side of the limiting rings (202) is tightly attached to the outer side of the inner cavities of the fixed rings (201). The front side and back side of the outer side of the clamping plates (204) are fixedly connected with springs (205), and the outer side of the springs (205) is fixedly connected to the inner cavities of the moving sleeves (208).

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