Ball type telescopic coupling

Abstract

The utility model relates to the technical field of ball type telescopic couplings, and discloses a ball type telescopic coupler which comprises a telescopic coupler body, one end of the telescopic coupler body is rotationally connected with a connecting installation head through a rotating shaft, and a movable telescopic rod extending to the outer side is installed in the telescopic coupler body in a matched mode. The device is provided with a stabilizing and reinforcing device, fixing between the rotating protective sleeve and the fixed protective sleeve can be conveniently completed, the inner walls of the rotating protective sleeve and the fixed protective sleeve are attached to the outer sides of the corresponding connecting shafts, reinforcing of the connecting part of the connecting column and the connecting mounting head is improved, and the stability after the connecting mounting head and the connecting shafts are mounted is improved; the device is provided with the connecting device, so that the outer side is reinforced after the rotating protective sleeve and the fixed protective sleeve are connected and fixed, and the stability of protecting and reinforcing the outer side of the connecting shaft by the rotating protective sleeve and the fixed protective sleeve is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ball-type telescopic couplings, in particular to a ball-type telescopic coupling. Background Art

[0002] A coupling is a mechanical connection method that connects the driving shaft and the driven shaft of two shafts to transmit torque. The existing couplings have different structures due to their different functions, and the most commonly used one is generally a ball coupling. However, the existing ball coupling only has balls installed between the sleeve and the connecting shaft, so it can only achieve torque transmission and a certain angle compensation. However, in some occasions, it is necessary to achieve both torque transmission and telescopicity, which requires a complex structure to achieve.

[0003] A Chinese patent discloses a ball-type retractable coupling (authorization announcement number CN 212928567 U). The patented technology includes a shell and a fixing hole arranged on the side of the shell and passing through it. The coupling assembly includes an outer half coupling whose outer side is fixedly connected to the inner side of the shell, an outer groove arranged on the inner side of the outer half coupling, an inner half coupling located inside the outer half coupling, an inner groove arranged on the outer side of the inner half coupling and a shaft rod hole arranged inside the inner half coupling. The outer groove and the inner groove are relatively matched. The anti-drop assembly includes a cover body, a slot hole arranged on the side of the cover body and passing through the cover body, and a fixing bolt that passes through the slot hole and the fixing hole respectively and is screwed. The ball is located between the outer groove and the inner groove and can slide relative to the outer groove and the inner groove. The utility model has a simple structure and design, convenient maintenance and installation, high transmission accuracy and low manufacturing cost.

[0004] However, the outer side of the connection part of the ball-type telescopic coupling with the connecting shaft is not reinforced during use, which affects the installation stability. Therefore, those skilled in the art provide a ball-type telescopic coupling to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to provide a ball-type telescopic coupling to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The ball-type telescopic coupling comprises a telescopic coupling body, one end of which is rotatably connected to a connecting and mounting head via a rotating shaft, a movable telescopic rod extending to the outside is cooperatively installed inside the telescopic coupling body, a mounting and connecting sleeve is fixed to one end of the movable telescopic rod, a mounting and connecting head is rotatably connected to the outside of the mounting and connecting sleeve via a rotating shaft, a stabilizing reinforcement device is fixed to the outside of the connecting and mounting head, and a connecting device is arranged on the outside of the connecting and mounting head;

[0008] The stabilizing reinforcement device comprises a rotating protective sleeve, the outer side of which is rotatably connected to a fixed protective sleeve via a rotating shaft, the outer side of which is fixed with an installation connection pad, the outer side of which is fixed with a fixed connection pad, the outer side of which is fixed with a movable semi-threaded column, the outer side of which is fixed with a fixed semi-threaded column, the outer sides of which are movably sleeved with a gasket, the outer sides of which are connected with an installation nut, and the outer sides of which are fixed with a reinforcement block.

[0009] As a further solution of the utility model: the connecting device includes a guide sleeve, a guide groove is provided on the outer side of the guide sleeve, the guide sleeve is slidably connected to a guide metal block through the guide groove, an installation sleeve is fixed to the outer side of the guide metal block, a positioning installation groove is provided on the outer side of the installation sleeve, a fixed metal plate is fixed to the outer side of the rotating protection sleeve, a positioning threaded rod is fixed to the outer side of the fixed metal plate, and a threaded sleeve is threadedly connected to the outer side of the positioning threaded rod.

[0010] As a further solution of the utility model: the size of the positioning installation groove is adapted to the size of the positioning threaded rod, and one side of the installation fixing sleeve is fitted with the outer side of the fixing metal plate.

[0011] As a further solution of the utility model: the outer side of the threaded sleeve is provided with anti-slip grooves, and one side of the threaded sleeve is in contact with the outer side of the mounting and fixing sleeve.

[0012] As a further solution of the utility model: the reinforcement block and the connecting mounting head are fixedly connected, and anti-slip grooves are arranged on the outer side of the mounting nut.

[0013] As a further solution of the utility model: arc grooves are provided inside the rotating protective sleeve and the fixed protective sleeve, and the radius of the arc grooves is equal to the size of the installation groove inside the connecting installation head.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The device is provided with a stabilizing reinforcement device, which can conveniently complete the fixation between the rotating protective sleeve and the fixed protective sleeve. By fitting the inner walls of the rotating protective sleeve and the fixed protective sleeve to the outer side of the corresponding connecting shaft, the connection part between the connecting column and the connecting mounting head is reinforced, and the stability of the connecting mounting head and the connecting shaft after installation is improved;

[0016] 2. The device is provided with a connecting device. When the rotating protective sleeve and the fixed protective sleeve are fixedly connected, the corresponding surface of the threaded sleeve and the outer side of the installation fixing sleeve are fitted to complete the locking, thereby improving the reinforcement of the outer side after the connection between the rotating protective sleeve and the fixed protective sleeve is fixed, and further ensuring the stability of the rotating protective sleeve and the fixed protective sleeve in protecting and reinforcing the outer side of the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a ball-type telescopic coupling;

[0018] Figure 2 It is a schematic diagram of the structure of the stabilizing reinforcement device in the ball-type telescopic coupling;

[0019] Figure 3 It is a schematic diagram of the structure of the connecting device in the ball-type telescopic coupling.

[0020] In the figure: 1. telescopic coupling body; 2. connecting mounting head; 3. movable telescopic rod; 4. installing connecting sleeve; 5. installing connecting head; 6. stabilizing reinforcement device; 61. rotating protective sleeve; 62. fixing protective sleeve; 63. installing connecting pad; 64. fixing connecting pad; 65. movable semi-threaded column; 66. fixed semi-threaded column; 67. gasket; 68. installing nut; 69. reinforcement block; 7. connecting device; 71. guide sleeve; 72. guide groove; 73. guiding metal block; 74. installing fixing sleeve; 75. positioning mounting groove; 76. fixing metal plate; 77. positioning threaded rod; 78. threaded sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3In the embodiment of the utility model, the ball-type telescopic coupling comprises a telescopic coupling body 1, one end of the telescopic coupling body 1 is rotatably connected to a connecting mounting head 2 through a rotating shaft, a movable telescopic rod 3 extending to the outside is installed inside the telescopic coupling body 1, one end of the movable telescopic rod 3 is fixed with a mounting connecting sleeve 4, the outside of the mounting connecting sleeve 4 is rotatably connected to a mounting connecting head 5 through a rotating shaft, a stabilizing reinforcement device 6 is fixed to the outside of the connecting mounting head 2, and a connecting device 7 is arranged on the outside of the connecting mounting head 2;

[0023] The stabilizing reinforcement device 6 includes a rotating protective sleeve 61, the outer side of which is rotatably connected to a fixed protective sleeve 62 via a rotating shaft. Arc grooves are provided inside the rotating protective sleeve 61 and the fixed protective sleeve 62, and the radius of the arc groove is equal to the size of the installation groove inside the connecting mounting head 2. A mounting connection pad 63 is fixed to the outer side of the rotating protective sleeve 61, a fixed connection pad 64 is fixed to the outer side of the fixed protective sleeve 62, a movable semi-threaded column 65 is installed on the outer side of the mounting connection pad 63, a fixed semi-threaded column 66 is fixed to the outer side of the fixed connection pad 64, a gasket 67 is movably sleeved on the outer sides of the movable semi-threaded column 65 and the fixed semi-threaded column 66, a mounting nut 68 is connected to the outer sides of the movable semi-threaded column 65 and the fixed semi-threaded column 66, a reinforcement block 69 is fixed to the outer side of the fixed protective sleeve 62, the reinforcement block 69 and the connection mounting head 2 are fixedly connected, and anti-slip grooves are arranged on the outer side of the mounting nut 68. When the connection mounting head 2 at one end of the telescopic coupling body 1 is being installed and connected, the corresponding connecting shaft and the connection mounting head 2 are fixed by bolts, and the outer side of the fixed protective sleeve 62 can be moved. The rotating protective sleeve 61 is rotated to make the corresponding surface of the installation connection pad 63 on the outside of the rotating protective sleeve 61 fit with the corresponding surface of the fixed connection pad 64 on the outside of the fixed protective sleeve 62. At this time, the corresponding surfaces of the movable semi-threaded column 65 on the outside of the installation connection pad 63 and the fixed semi-threaded column 66 on the outside of the fixed connection pad 64 fit together. Finally, the gasket 67 can be movably sleeved on the outside of the movable semi-threaded column 65 and the fixed semi-threaded column 66, so as to conveniently complete the fixation between the movable semi-threaded column 65 and the fixed semi-threaded column 66, and can conveniently complete the fixation between the rotating protective sleeve 61 and the fixed protective sleeve 62. By fitting the inner walls of the rotating protective sleeve 61 and the fixed protective sleeve 62 to the outside of the corresponding connecting shaft, the connection part between the connecting column and the connecting mounting head 2 is reinforced, and the stability of the connecting mounting head 2 and the connecting shaft after installation is improved.

[0024] As an embodiment of the present utility model, the connecting device 7 includes a guide sleeve 71, a guide groove 72 is provided on the outer side of the guide sleeve 71, and the guide sleeve 71 is slidably connected to a guide metal block 73 through the guide groove 72. A mounting sleeve 74 is fixed to the outer side of the guide metal block 73, and a positioning mounting groove 75 is provided on the outer side of the mounting mounting sleeve 74. A fixed metal plate 76 is fixed to the outer side of the rotating protective sleeve 61, and a positioning threaded rod 77 is fixed to the outer side of the fixed metal plate 76. The outer side of the positioning threaded rod 77 is threadedly connected with a threaded sleeve 78. The size of the positioning mounting groove 75 is adapted to the size of the positioning threaded rod 77. One side of the mounting sleeve 74 is fitted with the outer side of the fixed metal plate 76. The threaded sleeve 78 is threadedly connected to the outer side of the positioning threaded rod 77. The outer side of 8 is provided with anti-slip grooves, and one side of the threaded sleeve 78 is in contact with the outer side of the installation and fixing sleeve 74. When the rotating protective sleeve 61 and the fixed protective sleeve 62 are fixedly connected, the guide metal block 73 can be moved to slide in the corresponding guide groove 72. At this time, the guide metal block 73 drives the installation and fixing sleeve 74 to move, so that the installation and fixing sleeve 74 is movably sleeved on the outer side of the positioning threaded rod 77, and the corresponding surface of the installation and fixing sleeve 74 is in contact with the outer side of the fixed metal plate 76. Finally, the threaded sleeve 78 is threadedly connected to the positioning threaded rod 77, so that the corresponding surface of the threaded sleeve 78 is in contact with the outer side of the installation and fixing sleeve 74 to complete the locking, thereby enhancing the reinforcement of the outer side after the connection and fixation between the rotating protective sleeve 61 and the fixed protective sleeve 62.

[0025] The working principle of the utility model is: when the connecting mounting head 2 at one end of the telescopic coupling body 1 is being installed and connected, after the corresponding connecting shaft and the connecting mounting head 2 are fixed by bolts, the rotating protective sleeve 61 outside the fixed protective sleeve 62 can be rotated to make the corresponding surface of the installation connection pad 63 outside the rotating protective sleeve 61 and the corresponding surface of the fixed connection pad 64 outside the fixed protective sleeve 62 fit together, at this time, the movable semi-threaded column 65 outside the installation connection pad 63 and the corresponding surface of the fixed semi-threaded column 66 outside the fixed connection pad 64 fit together, and finally the gasket 67 can be movably sleeved on the outer side of the movable semi-threaded column 65 and the fixed semi-threaded column 66, so as to conveniently complete the fixation between the movable semi-threaded column 65 and the fixed semi-threaded column 66, and can conveniently complete the fixation between the rotating protective sleeve 61 and the fixed protective sleeve 62, by fitting the inner walls of the rotating protective sleeve 61 and the fixed protective sleeve 62 together. The corresponding outer side of the connecting shaft improves the reinforcement of the connecting part between the connecting column and the connecting mounting head 2, and improves the stability of the connecting mounting head 2 and the connecting shaft after installation; the device is provided with a connecting device 7, when the rotating protective sleeve 61 and the fixed protective sleeve 62 are fixedly connected, the guide metal block 73 can be moved to slide in the corresponding guide groove 72, at this time, the guide metal block 73 drives the installation fixing sleeve 74 to move, so that the installation fixing sleeve 74 is movably sleeved on the outer side of the positioning threaded rod 77, and the corresponding surface of the installation fixing sleeve 74 is in contact with the outer side of the fixed metal plate 76, and finally the threaded sleeve 78 is threadedly connected with the positioning threaded rod 77, so that the corresponding surface of the threaded sleeve 78 is in contact with the outer side of the installation fixing sleeve 74 to complete the locking, thereby improving the reinforcement of the outer side after the connection between the rotating protective sleeve 61 and the fixed protective sleeve 62 is fixed, and further ensuring the stability of the protection and reinforcement of the outer side of the connecting shaft by the rotating protective sleeve 61 and the fixed protective sleeve 62.

[0026] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A ball-type telescopic coupling, comprising a telescopic coupling body (1), characterized in that: One end of the telescopic coupling body (1) is rotatably connected to a connecting and mounting head (2) via a rotating shaft; a movable telescopic rod (3) extending to the outside is mounted inside the telescopic coupling body (1); a mounting connecting sleeve (4) is fixed to one end of the movable telescopic rod (3); the outside of the mounting connecting sleeve (4) is rotatably connected to a mounting connecting head (5) via a rotating shaft; a stabilizing reinforcement device (6) is fixed to the outside of the connecting and mounting head (2); and a connecting device (7) is arranged on the outside of the connecting and mounting head (2); The stabilizing reinforcement device (6) comprises a rotating protective sleeve (61), the outer side of the rotating protective sleeve (61) is rotatably connected to a fixed protective sleeve (62) via a rotating shaft, the outer side of the rotating protective sleeve (61) is fixed with a mounting connection pad (63), the outer side of the fixed protective sleeve (62) is fixed with a fixed connection pad (64), the outer side of the mounting connection pad (63) is installed with a movable semi-threaded column (65), the outer side of the fixed connection pad (64) is fixed with a fixed semi-threaded column (66), the outer sides of the movable semi-threaded column (65) and the fixed semi-threaded column (66) are movably sleeved with a gasket (67), the outer sides of the movable semi-threaded column (65) and the fixed semi-threaded column (66) are connected with a mounting nut (68), and the outer side of the fixed protective sleeve (62) is fixed with a reinforcement block (69).

2. The ball-type telescopic coupling according to claim 1, characterized in that: The connecting device (7) comprises a guide sleeve (71), a guide groove (72) is provided on the outer side of the guide sleeve (71), the guide sleeve (71) is slidably connected to a guide metal block (73) through the guide groove (72), a mounting sleeve (74) is fixed on the outer side of the guide metal block (73), a positioning mounting groove (75) is provided on the outer side of the mounting sleeve (74), a fixing metal plate (76) is fixed on the outer side of the rotating protective sleeve (61), a positioning threaded rod (77) is fixed on the outer side of the fixing metal plate (76), and a threaded sleeve (78) is threadedly connected to the outer side of the positioning threaded rod (77).

3. The ball-type telescopic coupling according to claim 2, characterized in that: The size of the positioning installation groove (75) is adapted to the size of the positioning threaded rod (77), and one side of the installation fixing sleeve (74) is in contact with the outer side of the fixing metal plate (76).

4. The ball-type telescopic coupling according to claim 2, characterized in that: The outer side of the threaded sleeve (78) is provided with anti-slip grooves, and one side of the threaded sleeve (78) is in contact with the outer side of the mounting and fixing sleeve (74).

5. The ball-type telescopic coupling according to claim 1, characterized in that: The reinforcing block (69) and the connecting mounting head (2) are fixedly connected, and the outer side of the mounting nut (68) is provided with anti-slip grooves.

6. The ball-type telescopic coupling according to claim 1, characterized in that: The rotating protective sleeve (61) and the fixed protective sleeve (62) are both provided with arc-shaped grooves inside, and the radius of the arc-shaped grooves is equal to the size of the installation groove inside the connecting installation head (2).

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