Coupling

Abstract

The utility model relates to the technical field of couplers, and discloses a coupler which comprises a coupler body, two inserting rods are inserted into the inner walls of the two ends of the coupler body, one ends of the two inserting rods are arranged on one sides of two fixing plates correspondingly, and two connecting sleeves are arranged on the other sides of the two fixing plates; the inner walls of the two connecting sleeves are arranged on the outer surfaces of the middles of the two connecting plates in a sleeving mode, and two casing pipes are arranged on one sides of the two connecting plates. According to the coupler, the fixing plate is pushed to move towards the coupler body, the inserting rod is inserted into the coupler body, the distance between the two connecting sleeves is adjusted, the two connecting sleeves and the coupler body can enter the position between two shafts, the inserting rod is pulled out of the coupler body, and the connecting plates installed on the shafts are sleeved with the connecting sleeves; and the effects that different lengths between the two shafts can be adapted, the length between the two shafts does not need to be adjusted according to the length of the coupler, and the coupler can be rapidly installed are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of couplings, and in particular to a coupling. Background Art

[0002] Couplings are commonly used connectors in mechanical transmissions. Their main function is to connect two shafts to facilitate power transmission and are widely used.

[0003] The existing installation steps are relatively cumbersome and cannot adapt to different lengths between the two shafts. The length between the two shafts needs to be readjusted during installation, and the coupling cannot be installed quickly. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the present application provides a coupling that has the advantages of being able to adapt to different lengths between the two shafts, without the need to adjust the length between the two shafts according to the length of the coupling, and being able to quickly install the coupling. It solves the problem that the existing installation steps are relatively cumbersome, cannot adapt to different lengths between the two shafts, needs to readjust the length between the two shafts during installation, and cannot quickly install the coupling.

[0005] The two ends of the two guide rails are connected with the up-down knob on the top of the two guide rails, and the two guide rails are connected with the up-down knob on the bottom of the two guide rails, so that the guide rails can be connected with the up-down knob on the bottom of the two guide rails.

[0006] Through the above scheme, by pushing the fixed plate toward the coupling body, the insertion rod is inserted into the coupling body. The distance between the two connecting sleeves allows the two connecting sleeves and the coupling body to enter between the two shafts. The insertion rod is pulled out of the coupling body, and the connecting sleeve is connected to the connecting plate installed on the shaft, thereby achieving the effect of adapting to different lengths between the two shafts. There is no need to adjust the length between the two shafts according to the length of the coupling, and the coupling can be installed quickly.

[0007] Furthermore, a spring is provided inside the telescopic outer tube, and both ends of the spring are respectively provided at one end of the two telescopic inner rods.

[0008] Through the above scheme, the setting of the spring can apply a thrust to the telescopic inner rod. After the coupling body and the two connecting sleeves enter between the two shafts, the insertion rod can be quickly pushed out of the coupling body, and the connecting sleeve can be quickly pushed to be connected to the connecting plate, which is convenient for the installation of the coupling.

[0009] Furthermore, a first limiting strip is provided on the middle outer surface of the insertion rod, and the middle outer surface of the first limiting strip is slidably connected to the inner wall of the first limiting groove, and the first limiting groove is opened on the inner wall of one end of the coupling body.

[0010] Through the above solution, the first limiting strip cooperates with the first limiting groove to fix the angle of the plug rod in the coupling body, so that the plug rod can drive the coupling body to rotate, and then the two plug rods can be linked through the coupling body.

[0011] Furthermore, a second limiting strip is provided on the middle outer surface of the connecting plate, and the middle outer surface of the second limiting strip is slidably connected to the inner wall of the second limiting groove, and the second limiting groove is opened on the inner wall of the connecting sleeve.

[0012] Through the above scheme, the angle between the connecting plate and the fixed plate can be fixed by sliding the second limiting groove on the second limiting bar, which facilitates the alignment of the threaded holes of the connecting plate and the fixed plate and increases the stability of the linkage between the connecting plate and the fixed plate.

[0013] Furthermore, both sides of the inner wall of the entrance at one end of the second limiting groove are chamfered.

[0014] Through the above solution, the chamfered setting of the entrance at one end of the second limiting groove can make one end of the second limiting strip conveniently inserted into the second limiting groove, without the need for the one end of the second limiting strip to be precisely aligned with the entrance at one end of the second limiting groove.

[0015] Furthermore, the edge of the inner wall of the inlet at one end of the connecting sleeve is chamfered.

[0016] With the above solution, the connecting plate can be conveniently inserted into the connecting sleeve by chamfering the inner wall edge of the inlet at one end of the connecting sleeve, without the need for the connecting plate to be precisely aligned with the inlet at one end of the connecting sleeve.

[0017] Furthermore, a threaded rod is rotatably provided on one side of the middle outer surface of the coupling body through a support plate, and the outer surfaces on both sides of the middle part of the threaded rod are respectively threadedly connected to the inner walls of one side of the two connecting rings. The thread directions of the outer surfaces on both sides of the middle part of the threaded rod are set in opposite directions, and a positioning rod is provided at one end of the two connecting rings away from each other.

[0018] Through the above scheme, the two connecting rings can be driven to move in opposite directions by rotating the threaded rod, and the distance between the two connecting rings can be adjusted so that the two connecting rings can synchronously drive the positioning rod to move, pushing the positioning rod to abut against the side of the fixed plate close to the coupling body, so that the two connecting rings cooperate with the positioning rod to fix the distance between the two fixed plates and the coupling body, thereby avoiding the insertion rod from moving in the coupling body during operation and causing noise, thereby improving the stability of the coupling during operation.

[0019] Furthermore, the inner wall of one side of the connecting ring is slidably arranged on the outer surface of one side of the middle part of the limiting rod, and the two ends of the limiting rod are arranged on one side of the outer surface of the middle part of the coupling body through a support plate.

[0020] With the above solution, the stability of the connecting ring during movement can be improved by sliding the inner wall of one side of the connecting ring on the outer surface of one side of the middle portion of the limiting rod.

[0021] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0022] This coupling pushes the fixed plate toward the coupling body so that the insertion rod is inserted into the coupling body. The distance between the two connecting sleeves allows the two connecting sleeves and the coupling body to enter between the two shafts. The insertion rod is pulled out of the coupling body so that the connecting sleeve is connected to the connecting plate installed on the shaft, thereby achieving the effect of adapting to different lengths between the two shafts. There is no need to adjust the length between the two shafts according to the length of the coupling, and the coupling can be installed quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of this application;

[0024] Figure 2 This is a schematic diagram of the front structure of this application;

[0025] Figure 3 This is a schematic cross-sectional structural diagram of the coupling body of this application;

[0026] Figure 4 This is a schematic diagram of the explosion structure of this application;

[0027] Figure 5 This is a schematic cross-sectional view of the telescopic outer tube of this application.

[0028] In the picture:

[0029] 1. Coupling body; 2. Insert rod; 3. Fixed plate; 4. Connecting sleeve; 5. Connecting plate; 6. Sleeve; 7. Fixing bolt; 8. Nut; 9. Telescopic outer tube; 10. Telescopic inner rod; 11. Spring; 12. First limit strip; 13. First limit groove; 14. Second limit strip; 15. Second limit groove; 16. Threaded rod; 17. Connecting ring; 18. Positioning rod; 19. Limit rod; 20. Third limit groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] See also Figure 2 、 Figure 3 and Figure 4 , a coupling in this embodiment includes a coupling body 1, two plug rods 2 are inserted into the inner walls at both ends of the coupling body 1, one end of the two plug rods 2 is respectively arranged on one side of the two fixed plates 3, and two connecting sleeves 4 are provided on the other side of the two fixed plates 3. The inner walls of the two connecting sleeves 4 are sleeved on the outer surface of the middle part of the two connecting plates 5, and two sleeves 6 are provided on one side of the two connecting plates 5. A third limiting groove 20 is opened on one side of the inner wall of the two sleeves 6, and a fixing bolt 7 is inserted in the threaded holes on one side of the fixing plate 3 and the connecting plate 5. A nut 8 is threadedly connected to the outer surface of one end of the fixing bolt 7. A telescopic outer tube 9 is provided on the inner wall of the middle part of the coupling body 1 through the fixing rod, and two telescopic inner rods 10 are inserted into the inner walls at both ends of the telescopic outer tube 9, and one end of the two telescopic inner rods 10 is arranged on one end of the two plug rods 2.

[0032] See also Figure 5 A spring 11 is provided inside the telescopic outer tube 9, and the two ends of the spring 11 are respectively provided at one end of the two telescopic inner rods 10. The setting of the spring 11 can apply a thrust to the telescopic inner rod 10. After the coupling body 1 and the two connecting sleeves 4 enter between the two shafts, the inserted rod 2 can be quickly pushed out of the coupling body 1, and the connecting sleeve 4 can be quickly pushed to be sleeved on the connecting plate 5, which is convenient for the installation of the coupling.

[0033] See also Figure 2 、 Figure 3 and Figure 4A first limiting strip 12 is provided on the outer surface of the middle part of the insertion rod 2. The outer surface of the middle part of the first limiting strip 12 is slidably connected to the inner wall of the first limiting groove 13. The first limiting groove 13 is opened on the inner wall of one end of the coupling body 1. The first limiting strip 12 cooperates with the first limiting groove 13 to fix the angle of the insertion rod 2 in the coupling body 1, so that the insertion rod 2 can drive the coupling body 1 to rotate, and then the two insertion rods 2 can be linked through the coupling body 1.

[0034] See also Figure 1 、 Figure 3 and Figure 4 A second limiting strip 14 is provided on the outer surface of the middle part of the connecting plate 5. The outer surface of the middle part of the second limiting strip 14 is slidably connected to the inner wall of the second limiting groove 15. The second limiting groove 15 is opened on the inner wall of the connecting sleeve 4. The second limiting groove 15 is slidably sleeved on the second limiting strip 14 to fix the angle between the connecting plate 5 and the fixed plate 3, which is convenient for aligning the threaded holes of the connecting plate 5 and the fixed plate 3, and can increase the stability of the linkage between the connecting plate 5 and the fixed plate 3.

[0035] See also Figure 1 and Figure 4 The two sides of the inner wall of the entrance at one end of the second limiting groove 15 are chamfered. Through the chamfered setting of the entrance at one end of the second limiting groove 15, one end of the second limiting strip 14 can be easily inserted into the second limiting groove 15, without the need for the second limiting strip 14 to be more accurately aligned with the entrance at one end of the second limiting groove 15.

[0036] See also Figure 1 and Figure 4 The edge of the inner wall of the inlet at one end of the connecting sleeve 4 is chamfered. The chamfered edge of the inner wall of the inlet at one end of the connecting sleeve 4 allows the connecting plate 5 to be easily inserted into the connecting sleeve 4 without the need for the connecting plate 5 to be precisely aligned with the inlet at one end of the connecting sleeve 4.

[0037] See also Figure 1 、 Figure 2 and Figure 3The two connecting rings 17 are fixed to the side of the coupling body 1 by the positioning rod 18, so as to avoid the plug rod 2 from moving in the coupling body 1 during operation, thereby causing noise to be generated, thereby improving the stability of the coupling during operation.

[0038] See also Figure 3 and Figure 4 The inner wall of one side of the connecting ring 17 is slidably arranged on the outer surface of one side of the middle part of the limiting rod 19, and the two ends of the limiting rod 19 are arranged on one side of the outer surface of the middle part of the coupling body 1 through the support plate. The stability of the connecting ring 17 during movement can be improved by sliding the inner wall of one side of the connecting ring 17 on the outer surface of one side of the middle part of the limiting rod 19.

[0039] A coupling in this embodiment pushes the fixed plate 3 toward the coupling body 1 so that the insertion rod 2 is inserted into the coupling body 1. The distance between the two connecting sleeves 4 is such that the two connecting sleeves 4 and the coupling body 1 can enter between the two shafts. The insertion rod 2 is pulled out of the coupling body 1 so that the connecting sleeve 4 is sleeved on the connecting plate 5 installed on the shaft, thereby achieving the effect of adapting to the different lengths between the two shafts. There is no need to adjust the length between the two shafts according to the length of the coupling, and the coupling can be installed quickly.

[0040] The working principle of the above embodiment is as follows: the two sleeves 6 are respectively sleeved on the two shafts that need to be linked, and the third limiting groove 20 is sleeved on the outer surface of the positioning strip on the shaft, the sleeve 6 is fixed to the shaft through the threaded hole on the sleeve 6, and the two connecting sleeves 4 are pushed toward the coupling body 1, so that the insertion rod 2 is inserted into the coupling body 1, and the telescopic inner rod 10 is pushed to be inserted into the telescopic outer tube 9, and the spring 11 is squeezed to reduce the distance between the two connecting sleeves 4, so that the two connecting sleeves 4 and the coupling body 1 can enter between the two shafts, and the two connecting sleeves 4 and the coupling body 1 are placed between the two shafts, and the push on the two connecting sleeves 4 is released, and the spring 11 is pressed. The spring 11 releases the thrust, pushing the telescopic inner rod 10 out of the telescopic outer tube 9, driving the inserted rod 2 to extend from the coupling body 1, pushing the connecting sleeve 4 to be sleeved on the connecting plate 5, and making the second limiting groove 15 sleeved on the second limiting strip 14, so that the connecting plate 5 is in fit with the fixed plate 3, and the connecting plate 5 and the fixed plate 3 are fixed with the fixing bolt 7 and the nut 8, and the threaded rod 16 is rotated to drive the two connecting rings 17 to move in opposite directions, increasing the distance between the two connecting rings 17, so that the connecting ring 17 drives the positioning rod 18 to move toward the fixed plate 3, so that one end of the positioning rod 18 abuts against one side of the fixed plate 3, and the position of the fixed plate 3 is fixed.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0042] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A coupling, comprising a coupling body (1), characterized in that: Two insertion rods (2) are inserted into the inner walls at both ends of the coupling body (1), one end of the two insertion rods (2) is respectively arranged on one side of the two fixing plates (3), and two connecting sleeves (4) are arranged on the other side of the two fixing plates (3). The inner walls of the two connecting sleeves (4) are sleeved on the outer surfaces of the middle parts of the two connecting plates (5), and two sleeves (6) are arranged on one side of the two connecting plates (5). A third limiting groove (20) is opened on one side of the inner wall of each of the two sleeves (6). A fixing bolt (7) is inserted into the threaded holes on one side of the fixing plate (3) and the connecting plate (5), and a nut (8) is threadedly connected to the outer surface of one end of the fixing bolt (7). A telescopic outer tube (9) is provided on the inner wall of the middle part of the coupling body (1) through the fixing rod, and two telescopic inner rods (10) are inserted into the inner walls at both ends of the telescopic outer tube (9), and one end of the two telescopic inner rods (10) is arranged on one end of the two insertion rods (2).

2. A coupling according to claim 1, characterized in that: A spring (11) is provided inside the telescopic outer tube (9), and two ends of the spring (11) are respectively provided at one end of the two telescopic inner rods (10).

3. A coupling according to claim 1, characterized in that: A first limiting strip (12) is provided on the middle outer surface of the insertion rod (2), and the middle outer surface of the first limiting strip (12) is slidably connected to the inner wall of a first limiting groove (13), and the first limiting groove (13) is provided on the inner wall of one end of the coupling body (1).

4. A coupling according to claim 1, characterized in that: A second limiting strip (14) is provided on the middle outer surface of the connecting plate (5), and the middle outer surface of the second limiting strip (14) is slidably connected to the inner wall of the second limiting groove (15), and the second limiting groove (15) is opened on the inner wall of the connecting sleeve (4).

5. A coupling according to claim 4, characterized in that: Both sides of the inner wall of the entrance at one end of the second limiting groove (15) are chamfered.

6. The coupling according to claim 1, characterized in that: The edge of the inner wall of the inlet at one end of the connecting sleeve (4) is chamfered.

7. The coupling according to claim 1, characterized in that: A threaded rod (16) is rotatably provided on one side of the middle outer surface of the coupling body (1) through a support plate. The outer surfaces on both sides of the middle portion of the threaded rod (16) are respectively threadedly connected to the inner walls of one side of two connecting rings (17). The thread directions of the outer surfaces on both sides of the middle portion of the threaded rod (16) are arranged in opposite directions. A positioning rod (18) is provided at one end of the two connecting rings (17) that are away from each other.

8. A coupling according to claim 7, characterized in that: The inner wall of one side of the connecting ring (17) is slidably arranged on the outer surface of one side of the middle portion of the limiting rod (19), and both ends of the limiting rod (19) are arranged on one side of the outer surface of the middle portion of the coupling body (1) through a support plate.

Images