Multipurpose eccentric adapter

Abstract

The utility model relates to the technical field of adapters, in particular to a multipurpose eccentric adapter which comprises a first shell and a second shell, the first shell and the second shell are closed and fastened through bolts and nuts, and one end of the first shell and one end of the second shell are respectively cast into a two-hole fixing seat and a three-hole fixing seat. An adapter assembly is assembled between the first shell and the two-hole fixing seat, an adapter assembly is also assembled between the second shell and the three-hole fixing seat, a transmission assembly is arranged between the first shell and the second shell, the two adapter assemblies are connected to the two sides of the transmission assembly respectively, and an adapter assembly is assembled on the three-hole fixing seat. The three-hole fixing seat and the two-hole flange plate are assembled and connected through the adaptive assembly, so that the problem of power transmission between rotating shafts with different axes can be effectively solved, and the flexibility and the stability of equipment are improved; and by arranging the adaptive assembly, connection of different flange plates at the end of the rotating shaft can be adapted, and good universality and interchangeability are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of adapter, especially to a multipurpose eccentric adapter. BACKGROUND

[0002] The adapters on the market can be roughly classified into straight-through type and shaft eccentric type. The straight-through adapter cannot realize angle adjustment and can only be used for simple shaft connection, which limits its flexibility. The existing shaft eccentric adapter has single function and is widely used in connecting components in different specifications of shafts or pipelines and is suitable for the fields of automobiles, machinery, automation equipment and the like. The eccentric adapter can realize flexible eccentric connection, such as eccentric connection of a motor rotating shaft, facilitates user to adjust the connection position and angle, and has the characteristics of visual structure and convenient installation. The working principle of the eccentric adapter is mainly to utilize kinetic energy to transmit to the meshing mechanism through an eccentric shaft to realize the eccentric connection function of the adapter.

[0003] The structure of the existing eccentric adapter is usually two-hole fixed type at both ends. However, in actual operation, when two shafts are misaligned or have height difference, the existing design often cannot meet the requirements. For example, in some precision mechanical equipment and automation devices, in order to meet the specific angle requirements or space limitations between shafts, two shafts need to be connected, and the two shafts may not be in the same plane. The traditional adapter cannot realize such connection.

[0004] At the same time, some application scenarios require stronger connection strength, for example, connecting large mechanical equipment or occasions subjected to large vibration and impact. Only relying on two-hole fixation may not meet the strength requirements. In this case, the traditional adapter structure cannot meet the conversion requirements and can only be solved by a complex customization scheme.

[0005] Therefore, there is an urgent need for an adapter that can connect two shafts without being limited by the shaft line, provide flexible connection mode, and improve connection strength to meet the needs of various specific scenarios. SUMMARY

[0006] In order to solve the above problems, the utility model provides a multipurpose eccentric adapter.

[0007] The multipurpose eccentric adapter comprises a shell one and a shell two, and the shell one and the shell two are closed and fastened by a bolt and a nut. One end of the shell one and the shell two is respectively cast into a two-hole fixing seat and a three-hole fixing seat. The two-hole fixing seat is assembled and connected with a two-hole flange disc by means of a double-headed screw rod one, and the three-hole fixing seat is also assembled and connected with a three-hole flange disc by means of the double-headed screw rod one.

[0008] The two-hole fixing base and the three-hole fixing base are on the same plane but the axes are staggered, the two holes of the two-hole fixing base are symmetrically arranged and are all configured as threaded holes, and the three holes of the three-hole fixing base are uniformly arranged along the center circumference and are all configured as through holes;

[0009] The adapter assembly is assembled between the shell one and the two-hole fixing base, the adapter assembly is also assembled between the shell two and the three-hole fixing base, the transmission assembly is arranged between the shell one and the shell two, the two adapter assemblies are respectively connected to the two sides of the transmission assembly, the adapter assembly is assembled on the three-hole fixing base, and the three-hole fixing base is assembled and connected with the two-hole flange plate through the adapter assembly.

[0010] Preferably, the transmission assembly comprises three groups of transmission shafts, the three groups of transmission shafts are all installed in the cavity formed by the shell one and the shell two through bearings, and transmission gears are installed on the three groups of transmission shafts, and the adjacent two transmission gears are in meshing connection.

[0011] Preferably, a connecting head is integrally formed at one end of the transmission shaft corresponding to the adapter assembly, and the connecting head is located in the corresponding three-hole fixing base or two-hole fixing base, and an external spline is arranged on the outer side wall of the connecting head;

[0012] The adapter assembly comprises a sleeve, an adapter sleeve and a fastening bolt, a plurality of internal splines matched with the external spline are arranged on the inner side wall of the sleeve, the sleeve is slidably sleeved on the outer side wall of the connecting head through the internal splines, the adapter sleeve is integrally formed at one end of the sleeve away from the connecting head, a flat washer is arranged in the adapter sleeve, and the fastening bolt is threadedly connected to the fastening hole formed at the axis of the connecting head after penetrating through the flat washer, so that the adapter sleeve and the connecting head are fixedly connected.

[0013] Preferably, an oil seal is sleeved on the outer side wall of the connecting head, and the oil seal is rotatably arranged on the shell one or the shell two.

[0014] Preferably, the adapter assembly comprises an adapter disc, three groups of mounting holes corresponding to the hole positions of the three-hole fixing base are formed in the adapter disc, and a double-headed screw two is threadedly fixed in the mounting hole;

[0015] A mounting hole corresponding to the hole position of the two-hole fixing base is also formed in the adapter disc, a double-headed screw three is inserted into the mounting hole, and the other end of the double-headed screw three is assembled and connected with the two-hole flange plate.

[0016] Preferably, a plurality of grommets with different thicknesses are sleeved on the double-headed screw two and between the adapter disc and the three-hole fixing base, so as to adjust the distance between the adapter disc and the three-hole fixing base and ensure the parallelism of the two.

[0017] Preferably, the double-headed screw three is clamped and fixed on the three-hole fixing seat through the clamping plate and the clamping plate.

[0018] Preferably, a clamping nut is threadedly connected to the double-headed screw, and the abutting plate is driven by the clamping nut to push the connecting plate tightly against the three-hole fixing seat.

[0019] The abutting plate is provided with an insertion rod, the three-hole fixing seat is provided with a circular hole for the insertion rod to pass through, and the clamping plate is provided with a fixing hole for the insertion rod to pass through.

[0020] Preferably, one side surface of the abutting plate is configured as a flat surface, and a limiting plate is sleeved on the double-headed screw two, and one side surface of the limiting plate is also configured as a flat surface.

[0021] Preferably, a receiving ring is sleeved on the double-headed screw three between the clamping plate and the connecting plate, and the thickness of the receiving ring is the same as the thickness of the three-hole fixing seat.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] First, the utility model can effectively solve the power transmission problem between different shafts, improve the flexibility and stability of the equipment, and is simple to install, widely applicable, suitable for various mechanical transmission scenes, and significantly improves the work efficiency.

[0024] Second, the utility model adopts the sleeve sliding installation and fastening bolt connection mode, ensures the firm connection of the adapter assembly and the connector, realizes the efficient and stable power transmission, and reduces the friction loss of the inner wall of the adapter sleeve and improves the power transmission efficiency.

[0025] Third, the utility model is provided with an adapter assembly, which can adapt to different flange connections of the shaft end, has good universality and interchangeability, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] The utility model will be further described below in combination with the drawings and examples.

[0027] Figure 1 is a structure diagram of the utility model Figure One .

[0028] Figure 2 is a structure diagram of the utility model Figure Two .

[0029] Figure 3It is a structural schematic view of the transmission assembly of the utility model.

[0030] Figure 4 It is a structural schematic view of the adapter assembly of the utility model.

[0031] Figure 5 It is a structural schematic view of the adapter assembly of the utility model Figure One .

[0032] Figure 6 It is a structural schematic view of the adapter assembly of the utility model Figure Two .

[0033] Figure 7 It is a structural schematic view of the adapter assembly of the utility model Figure Three .

[0034] Figure 8 It is a structural schematic view of the adapter assembly of the utility model Figure Four .

[0035] Figure 9 It is a structural schematic view of the adapter assembly of the utility model between the double-end screw three, the abutting plate, the plug-in rod, the connecting plate and the clamp plate.

[0036] In the figure, 10, shell one;11, shell two;101, two-hole fixing seat;111, three-hole fixing seat;12, double-end screw one;30, transmission assembly;301, transmission shaft;302, transmission gear;303, connecting head;304, oil seal;20, adapter assembly;201, sleeve;202, adapter sleeve;203, fastening bolt;204, flat pad;40, adapter assembly;401, adapter disc;402, double-end screw two;403, assembly hole;404, grommet;405, clamp plate;406, connecting plate;407, abutting plate;408, clamping nut;409, plug-in rod;410, fixing hole;411, limiting plate;412, bearing ring;413, double-end screw three. Specific implementation

[0037] The following will be combined with the Figures 1-9 The embodiments of the utility model are explained in detail.

[0038] The utility model discloses a multipurpose eccentric adapter, which effectively solves the power transmission problem between different shaft lines, improves the flexibility and stability of equipment, is simple to install, has wide application range, is suitable for various mechanical transmission scenes, and significantly improves work efficiency.

[0039] Referring to Figures 1 to 3As shown, a multipurpose eccentric adapter includes a shell one 10 and a shell two 11, which are closed and fastened by bolt and nut, wherein one end of the shell one 10 and the shell two 11 is respectively cast into a two-hole fixing seat 101 and a three-hole fixing seat 111, the two-hole fixing seat 101 is assembled and connected with a two-hole flange plate by means of a double-headed screw one 12, and the three-hole fixing seat 111 is also assembled and connected with a three-hole flange plate by means of the double-headed screw one 12.

[0040] The two-hole fixing seat 101 and the three-hole fixing seat 111 are on the same plane but the axes are staggered, the two holes of the two-hole fixing seat 101 are symmetrically arranged and are both configured as threaded holes, and the three holes of the three-hole fixing seat 111 are uniformly arranged along the center circumference and are all configured as through holes.

[0041] The adapter assembly 20 is assembled between the shell one 10 and the two-hole fixing seat 101, and the adapter assembly 20 is also assembled between the shell two 11 and the three-hole fixing seat 111, the transmission assembly 30 is arranged between the shell one 10 and the shell two 11, the two adapter assemblies 20 are respectively connected to the two sides of the transmission assembly 30, and the fitting assembly 40 is assembled on the three-hole fixing seat 111, so that the three-hole fixing seat 111 is assembled and connected with the two-hole flange plate through the fitting assembly 40.

[0042] In the specific implementation process, the transmission assembly 30 is installed between the shell one 10 and the shell two 11, and then the transmission assembly 30, the shell one 10 and the shell two 11 are assembled into an integrated body by means of bolt and nut closed fastening, and then the two adapter assemblies 20 are respectively assembled in the two-hole fixing seat 101 and the three-hole fixing seat 111.

[0043] Then when the eccentric adapter of the present application is needed to realize the transmission of two rotating shafts on different axes, the adapter of the present application is installed between the two rotating shafts, and the specific process is as follows: one end of one rotating shaft is provided with a two-hole flange plate, which is assembled with the two-hole fixing seat 101 of the shell one 10 and is fastened and installed by means of the double-headed screw one 12; the other end of the other rotating shaft is provided with a three-hole flange plate, which is assembled with the three-hole fixing seat 111 of the shell two 11 and is fastened and installed by means of the double-headed screw one 12, so as to realize the eccentric power transmission of the rotating shafts under the action of the transmission assembly 30. Through the eccentric adapter, the problem of power transmission between rotating shafts on different axes can be effectively solved, and the flexibility and stability of the equipment are improved. The installation is simple, the application range is wide, it is suitable for various mechanical transmission scenes, and the work efficiency is significantly improved.

[0044] Referring to Figure 3 and Figure 4, the transmission assembly 30 includes three sets of transmission shafts 301, which are all installed in the cavity formed between the shell one 10 and the shell two 11 through bearings, and each of the three sets of transmission shafts 301 is provided with a transmission gear 302, and the adjacent two transmission gears 302 are connected in meshing mode. Through the three sets of transmission shafts 301 and the transmission gears 302 installed thereon, the eccentric power transmission between the two rotating shafts can be realized.

[0045] The end of the transmission shaft 301 corresponding to the adapter assembly 20 is integrally formed with a connecting head 303, and the connecting head 303 is located in the corresponding three-hole fixing seat 111 or two-hole fixing seat 101, and the outer side wall of the connecting head 303 is provided with external splines;

[0046] The adapter assembly 20 includes a sleeve 201, an adapter sleeve 202, and a fastening bolt 203. The inner side wall of the sleeve 201 is circumferentially provided with a plurality of internal splines matched with the external splines. The sleeve 201 is slidably sleeved on the outer side wall of the connecting head 303 through the internal splines. The end of the sleeve 201 away from the connecting head 303 is integrally formed with the adapter sleeve 202. The adapter sleeve 202 is internally fitted with a flat washer 204. The fastening bolt 203 is threadedly connected to the fastening hole at the axis of the connecting head 303 after penetrating through the flat washer 204, thereby realizing the fixed connection between the adapter sleeve 202 and the connecting head 303.

[0047] In the specific implementation process, the end of the sleeve 201 is slidably sleeved on the connecting head 303, and the internal splines of the sleeve 201 are matched with the external splines of the connecting head 303. Then, the flat washer 204 is inserted into the adapter sleeve 202 and abuts against the side wall of the sleeve 201. The fastening bolt 203 is threadedly connected to the fastening hole in the side wall of the connecting head 303 after penetrating through the flat washer 204, thereby realizing the firm connection between the adapter assembly 20 and the connecting head 303. Through this design, the adapter assembly 20 is closely combined with the rotating shaft, ensuring stable and efficient power transmission. During installation, attention should be paid to the accurate alignment of each component, and the fastening bolt 203 should be moderately tightened to avoid damage caused by excessive force.

[0048] The adapter sleeve 202 of the adapter assembly 20 is connected to the rotating shaft, which can realize the power transmission between the rotating shaft and the connecting head 303. Through this design, the adapter assembly 20 is closely combined with the transmission shaft 301, ensuring stable and efficient power transmission. The inner wall of the adapter sleeve 202 is provided with a wear-resistant coating to reduce friction loss and improve transmission efficiency.

[0049] The outer side wall of the connecting head 303 is sleeved with an oil seal 304, which is rotatably arranged on the shell one 10 or the shell two 11 to stabilize the connecting head 303 and ensure that the connecting head 303 remains stable during rotation. The inner side of the oil seal 304 is provided with a sealing ring to prevent leakage of lubricating oil and improve transmission efficiency.

[0050] Referring to Figures 5 to 9The adapter assembly 40 comprises an adapter disc 401, three groups of mounting holes corresponding to the hole positions of the three-hole fixing seat 111 are formed in the adapter disc 401, and a double-headed screw 402 is fixedly screwed in the mounting holes; the other end of the double-headed screw 402 is inserted into the hole position of the three-hole fixing seat 111 and is fixed by a fixing nut.

[0051] An assembly hole 403 corresponding to the hole position of the two-hole fixing seat 101 is further formed in the adapter disc 401, a double-headed screw 413 is inserted into the assembly hole 403, and the other end of the double-headed screw 413 is assembled and connected with the two-hole flange disc.

[0052] A plurality of grommets 404 with different thicknesses are sleeved on the double-headed screw 402 and between the adapter disc 401 and the three-hole fixing seat 111, so as to adjust the distance between the adapter disc 401 and the three-hole fixing seat 111 and ensure the parallelism of the two.

[0053] In the specific implementation process, the adapter disc 401 and the three-hole fixing seat 111 need to be aligned first, the double-headed screw 402 is inserted and the fixing nut is tightened, and then the grommet 404 is adjusted to ensure parallelism. Subsequently, the double-headed screw 413 is inserted through the assembly hole 403 and connected with the two-hole flange disc, and the fixing nut is tightened to ensure that the two-hole flange disc is tightly attached to the adapter disc 401.

[0054] In order to ensure the stable connection between the adapter disc 401, the three-hole fixing seat 111 and the two-hole flange disc, the double-headed screw 413 of the present application is provided with a clamping plate 405 at one end thereof towards the shell 2 11, a connecting plate 406 is slidably sleeved on the double-headed screw 413, the connecting plate 406 is provided with a connecting hole, the connecting plate 406 is slidably sleeved on the double-headed screw 402 through the connecting hole, and the double-headed screw 413 is clamped and fixed on the three-hole fixing seat 111 by the clamping plate 405 and the connecting plate 406.

[0055] A pressing plate 407 is further sleeved on the double-headed screw, and a clamping nut 408 is threadedly connected on the double-headed screw, the pressing plate 407 is driven by the clamping nut 408 to push the connecting plate 406 tightly against the three-hole fixing seat 111.

[0056] The pressing plate 407 is provided with a plug-in rod 409, the three-hole fixing seat 111 is provided with a circular hole for the plug-in rod 409 to be inserted, and the clamping plate 405 is provided with a fixing hole 410 for the plug-in rod 409 to be inserted, the plug-in rod 409 is inserted into the fixing hole 410 after passing through the circular hole.

[0057] One side surface of the pressing plate 407 is configured as a flat surface, a limiting plate 411 is sleeved on the double-headed screw 402, one side surface of the limiting plate 411 is also configured as a flat surface, and the flat surface of the pressing plate 407 and the flat surface of the limiting plate 411 are matched with each other.

[0058] The double-end screw three 413 is provided with a receiving ring 412 between the clamping plate 405 and the connecting plate 406, and the thickness of the receiving ring 412 is the same as that of the three-hole fixing seat 111.

[0059] In the implementation process, the clamping plate 405 and the connecting plate 406 are first installed on the double-end screw three 413, the position of the receiving ring 412 is adjusted to ensure that it is parallel to the three-hole fixing seat 111; then the abutting plate 407 is pushed, so that the insertion rod 409 passes through the round hole and is inserted into the fixing hole 410, and then the abutting plate 407 is tightly pushed against the connecting plate 406 by tightening the clamping nut 408, so that the connecting plate 406, the three-hole fixing seat 111 and the clamping plate 405 are tightly combined to ensure the stability of the overall structure. The position of the limiting plate 411 is adjusted to ensure that the flat surface of the limiting plate 411 is in close contact with the flat surface of the abutting plate 407, so as to prevent the double-end screw two 402 and the double-end screw three 413 from loosening. Finally, through the precise cooperation of various components, efficient connection of the adapter disc 401, the three-hole fixing seat 111 and the two-hole flange disc is realized, and stable and reliable operation of the equipment is ensured.

[0060] The working principle steps of the utility model are as follows:

[0061] First step: install three groups of transmission shafts 301 in the cavity formed between the shell one 10 and the shell two 11, and ensure that the bearings are correctly installed. Install transmission gears 302 on each transmission shaft 301 to ensure that the adjacent gears are connected in meshing, and then fasten and install the shell one 10 and the shell two 11 by bolts and nuts.

[0062] Second step: slide the sleeve 201 on one end of the connecting head 303, and ensure that the inner spline of the sleeve 201 and the outer spline of the connecting head 303 are installed in cooperation, then insert the flat gasket 204 into the adapter sleeve 202 and abut against the side wall of the sleeve 201, and then thread the fastening bolt 203 through the flat gasket 204 and connect it in the fastening hole on the side wall of the connecting head 303 to realize the fixed connection of the adapter sleeve 202 and the connecting head 303.

[0063] Third step: align the adapter disc 401 with the three-hole fixing seat 111, insert the double-end screw two 402 and tighten the fixing nut, adjust the gasket ring 404 to ensure parallelism, then pass the double-end screw three 413 through the assembly hole 403 to connect with the two-hole flange disc, and tighten the fixing nut to ensure that the two-hole flange disc is tightly attached to the adapter disc 401.

[0064] Fourth step: install the clamping plate 405 and the connecting plate 406 on the double-end screw 413, adjust the position of the bearing ring 412 to ensure that it is parallel to the three-hole fixing seat 111, then push the abutting plate 407 so that the insertion rod 409 passes through the round hole and is inserted into the fixing hole 410, then tighten the clamping nut 408 to tightly push the connecting plate 406 by the abutting plate 407, realize the close combination of the connecting plate 406, the three-hole fixing seat 111 and the clamping plate 405, and adjust the position of the limiting plate 411 to make the flat surface of the limiting plate 411 closely contact with the flat surface of the abutting plate 407.

[0065] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view.

[0066] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A multipurpose eccentric adapter, comprising a shell one (10) and a shell two (11), the shell one (10) and the shell two (11) being closed and fastened by bolt-nut, characterized in that: one end of the shell one (10) and the shell two (11) is respectively cast into a two-hole fixing seat (101) and a three-hole fixing seat (111), the two-hole fixing seat (101) is assembled and connected with a two-hole flange plate by means of a double-headed screw one (12), and the three-hole fixing seat (111) is also assembled and connected with a three-hole flange plate by means of the double-headed screw one (12); the two-hole fixing seat (101) and the three-hole fixing seat (111) are on the same plane but the axes are staggered, the two holes of the two-hole fixing seat (101) are symmetrically arranged and are all configured as threaded holes, and the three holes of the three-hole fixing seat (111) are uniformly arranged along the center circumference and are all configured as through holes; an adapter assembly (20) is assembled between the shell one (10) and the two-hole fixing seat (101), and the shell two (11) and the three-hole fixing seat (111) are also assembled with the adapter assembly (20), a transmission assembly (30) is arranged between the shell one (10) and the shell two (11), the two adapter assemblies (20) are respectively connected to the two sides of the transmission assembly (30), and an adapter assembly (40) is assembled on the three-hole fixing seat (111) to assemble and connect the three-hole fixing seat (111) with the two-hole flange plate. The transmission assembly (30) comprises three groups of transmission shafts (301), the three groups of transmission shafts (301) are all installed in the cavity closed between the shell one (10) and the shell two (11) through bearings, and the transmission shafts (301) are all installed with transmission gears (302), and the adjacent two transmission gears (302) are meshed and connected. The transmission shaft (301) corresponding to the adapter assembly (20) is integrally formed with a connector (303) at one end, and the connector (303) is located in the corresponding three-hole fixing seat (111) or two-hole fixing seat (101), and the outer side wall of the connector (303) is provided with external splines; The adapter assembly (20) comprises a sleeve (201), an adapter sleeve (202) and a fastening bolt (203), the inner side wall of the sleeve (201) is circumferentially provided with a plurality of internal splines matched with the external splines, the sleeve (201) is slidably sleeved on the outer side wall of the connector (303) through the internal splines, the sleeve (201) is integrally formed with the adapter sleeve (202) at one end away from the connector (303), a flat washer (204) is assembled in the adapter sleeve (202), and the fastening bolt (203) is threadedly connected to the fastening hole at the axis of the connector (303) after penetrating through the flat washer (204), so as to realize the fixed connection of the adapter sleeve (202) and the connector (303).

2. The multi-purpose eccentric adapter of claim 1, wherein: The outer side wall of the connector (303) is sleeved with an oil seal (304), and the oil seal (304) is rotatably arranged on the shell one (10) or the shell two (11).

3. The multi-purpose eccentric adapter of claim 2, wherein: ​ ​ 4. The multi-use eccentric adapter of claim 3, wherein: ​ 5. The multi-use eccentric swivel of claim 1, wherein: The adapter assembly (40) comprises an adapter disc (401) having three sets of mounting holes corresponding to the hole positions of the three-hole fixing seat (111), and a double-headed screw (402) is fixed in the mounting hole by screwing; The adapter disc (401) also has an assembly hole (403) corresponding to the hole position of the two-hole fixing seat (101), and a double-headed screw (413) is inserted into the assembly hole (403), and the other end of the double-headed screw (413) is assembled with the two-hole flange disc.

6. The multi-purpose eccentric adapter of claim 5, wherein: A plurality of gaskets (404) with different thicknesses are sleeved on the double-headed screw (402) between the adapter disc (401) and the three-hole fixing seat (111) to adjust the distance between the adapter disc (401) and the three-hole fixing seat (111) and ensure their parallelism.

7. The multi-use eccentric swivel of claim 6, wherein: The end of the double-headed screw (413) facing the shell (11) is provided with a clamping plate (405), and the double-headed screw (413) is slidably sleeved with a connecting plate (406), and the connecting plate (406) is provided with a connecting hole.

8. The multi-use eccentric swivel of claim 7, wherein: The connecting plate (406) is slidably sleeved on the double-headed screw (402) through the connecting hole, and the double-headed screw (413) is clamped and fixed on the three-hole fixing seat (111) by the connecting plate (406) and the clamping plate (405). A clamping nut (408) is also threaded on the double-headed screw, and the clamping nut (408) drives the abutting plate (407) to push the connecting plate (406) tightly against the three-hole fixing seat (111); 9. The multi-use eccentric swivel of claim 8, wherein: The abutting plate (407) is provided with a plug-in rod (409), and the three-hole fixing seat (111) is provided with a circular hole for the plug-in rod (409) to pass through, and the clamping plate (405) is provided with a fixing hole (410) for the plug-in rod (409) to pass through.

10. The multi-use eccentric swab adapter of claim 7, wherein: The side surface of the abutting plate (407) is configured as a flat surface, and the double-headed screw (402) is sleeved with a limiting plate (411), and the side surface of the limiting plate (411) is also configured as a flat surface. The flat surface of the abutting plate (407) and the flat surface of the limiting plate (411) are in mutual abutting cooperation. The double-headed screw (413) is sleeved with a receiving ring (412) between the clamping plate (405) and the connecting plate (406), and the thickness of the receiving ring (412) is the same as the thickness of the three-hole fixing seat (111).

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