CN210106306U - Connecting device - Google Patents

Abstract

The utility model relates to a connecting device. Wherein, connecting device includes: the adapter and the connecting base; the adapter is used for being connected with the imaging equipment, and a positioning groove is formed in the adapter; the connecting base comprises a first end used for installing the scale plate and a second end used for being matched and connected with the adaptor, and a positioning structure matched with the positioning groove is arranged on the second end; the positioning groove is matched with the positioning structure, so that the adapter is detachably connected with the connecting base. The utility model provides a connecting device can make the scale can not the pressurized deformation at the in-process that is connected to imaging device to guarantee the precision of image registration operation.

Description

Connecting device

Technical Field

The utility model relates to a connecting device technical field especially relates to a connecting device.

Background

In the navigation operation, a ruler for providing a spatial position mark for an imaging device may be set on the imaging device to perform 2D scanning to complete image registration.

In the research process of directly mounting the scale on the imaging device, the fact that if the scale is directly fixed on the imaging device in a pressing and fixing mode is found, the scale is deformed due to pressure, so that the actual distribution pattern of the scale deviates from the preset distribution pattern, and the precision of image registration operation is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a scale jointing equipment can make the scale can not the pressurized deformation at the in-process that is connected to imaging device to guarantee the precision of image registration operation.

The utility model provides a connecting device, include: the adapter and the connecting base; the adapter is used for being connected with the imaging equipment, and a positioning groove is formed in the adapter; the connecting base comprises a first end used for installing the scale plate and a second end used for being matched and connected with the adaptor, and a positioning structure matched with the positioning groove is arranged on the second end; the positioning groove is matched with the positioning structure, so that the adapter is detachably connected with the connecting base.

In a first possible implementation, the positioning structure includes: the bolt and the drive assembly that interconnect, bolt run through the connection base, and drive assembly is used for driving the bolt and removes between the first position that inserts the constant head tank and the second position that breaks away from the constant head tank.

With reference to the foregoing possible implementation manners, in a second possible implementation manner, the driving assembly includes: the connecting base is connected with the connecting base through a connecting rod; one end of the bolt is connected with the knob, and the other end of the bolt sequentially penetrates through the guide seat and the connecting base; wherein, the side that the connection base was kept away from to the guide holder has the direction curved surface, is provided with the slider on the knob, and the slider supports and leans on in the direction curved surface to when making the slider remove along the direction curved surface, the knob can drive the bolt and remove between primary importance and second place.

With reference to the foregoing possible implementation manners, in a third possible implementation manner, the driving assembly further includes: the elastic part, the bolt is close to the one end of constant head tank and is provided with spacing arch, and the elastic part sets up between guide holder and spacing arch to make the bolt move to the first position or move to the second position by the first position from the second position under the elastic force of elastic part.

In combination with the above possible implementation manners, in a fourth possible implementation manner, the guiding curved surface includes an inclined surface and a resting surface that are connected in sequence, so that when the knob is rotated, the slider can move along the inclined surface and the resting surface in sequence and stop at the resting surface, and when the knob moves along the inclined surface and the resting surface in sequence, the plug is driven to move between the first position and the second position.

In combination with the above possible implementation manners, in a fifth possible implementation manner, a plurality of groups of positioning grooves are arranged on the adapter, and a plurality of groups of positioning structures are arranged on the connection base in a one-to-one correspondence manner;

the adapter is provided with a threaded hole used for being matched with the bolt, and the threaded hole is internally provided with the bolt used for tightly pressing and fixing the adapter on the imaging equipment in a penetrating manner.

With reference to the foregoing possible implementation manners, in a sixth possible implementation manner, the adaptor is annular, and the connection base is cylindrical or barrel-shaped.

With reference to the foregoing possible implementation manners, in a seventh possible implementation manner, the connection base is cylindrical or cylindrical, and an accommodating groove is formed at one end of the connection base, which is connected to the imaging device, and is used for accommodating the imaging device; during assembly, the adaptor is assembled on the inner wall of the connecting base accommodating groove and sleeved on the imaging equipment.

With reference to the foregoing possible implementation manners, in an eighth possible implementation manner, one of the outer cylindrical surface of the adapter and the surface of the connection base opposite to the outer cylindrical surface of the adapter is provided with one or more limiting grooves, the other is provided with one or more limiting pins adapted to the one or more limiting grooves, and the limiting grooves and the limiting pins are matched with each other to limit the adapter and the connection base to move relatively.

In combination with the above possible implementation manners, in a ninth possible implementation manner, when the limiting groove is disposed on the adapter, the limiting groove extends along the preset path from the end surface of the adapter, and two ends of the limiting groove are located on different straight buses of the outer cylindrical surface and on different alignment lines of the outer cylindrical surface.

In combination with the above possible implementation manners, in a tenth possible implementation manner, the positioning groove is disposed at one end of the limiting groove, which is far away from the end surface of the adapter.

With reference to the foregoing possible implementation manners, in an eleventh possible implementation manner, the limiting groove is an L-shaped groove, and the positioning groove is a circular groove or a square groove.

The utility model provides a connecting device is connected the scale to imaging device through connection base and adaptor and is connected, and adaptor and connection base pass through the constant head tank and location structure cooperation is connected, and the scale that makes the last installation of connecting device can detachably assemble imaging device on to prevent that the scale from the in-process atress of installing on imaging device and warping, keep the actual distribution figure of scale the same with preset distribution figure, thereby guarantee the precision of image registration operation.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic view of an angle of a connection device according to an embodiment of the present invention in a locked state;

fig. 2 is a schematic mechanism diagram of the connection device according to the embodiment of the present invention in a state where the adaptor and the connection base are not connected;

fig. 3 is a schematic cross-sectional view of a connection device according to an embodiment of the present invention in a locked state;

fig. 4 is a schematic view of a partial cross-section of a connection device according to an embodiment of the present invention in a locked state;

fig. 5 is a schematic partial sectional structure view of a connection device in an unlocked state according to an embodiment of the present invention.

Fig. 6 is an assembly view of the positioning structure of the connecting device according to the embodiment of the present invention;

fig. 7 is another assembly view of the positioning structure of the connecting device according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a knob of a connecting device according to an embodiment of the present invention;

description of reference numerals:

100. an adapter; 200. a connection base; 300. positioning a groove; 400. a positioning structure; 410. a guide seat; 411. a guide curved surface; 412. stopping the dough; 420. a bolt; 430. a knob; 431. a slider; 440. an elastic member; 500. a limiting groove; 600. a spacing pin; 700. a threaded hole;

in the drawings, the drawings are not necessarily to scale.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention, but are not intended to limit the scope of the invention, i.e., the invention is not limited to the described embodiments.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships only for convenience in describing the present invention and to simplify the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

For a better understanding of the present invention, the connecting device according to the embodiment of the present invention will be described in detail with reference to fig. 1 and 2.

Fig. 1 shows a schematic structural view of a connection device according to an embodiment of the present invention in a locked state; fig. 2 shows a schematic structural diagram of an angle of the connection device according to an embodiment of the present invention in a state where the adaptor and the connection base 200 are not connected.

As shown in fig. 1 and 2, the present invention provides a connecting device, including: an adaptor 100 and a connection base 200. The adaptor 100 is used for connecting with an image forming apparatus, and the adaptor 100 is provided with a positioning groove 300. The connection base 200 includes a first end for mounting the scale board such that the scale board is located in an imaging area of the imaging device, and a second end for fitting connection with the adaptor 100, the second end being provided with a positioning structure 400 fitted with the positioning groove 300; the alignment groove 300 and the alignment structure 400 are adapted to removably couple the adapter 100 to the docking station 200.

In an embodiment of the present invention, the adaptor 100 may be connected to the imaging device by being connected to the image intensifier. The adaptor 100 may also be connected to the imaging device by connecting the image capturing device. The image capturing device may be an X-ray emitter, among others. In some embodiments, the image capture device may be a C-arm device, such as a 2D-C arm or a 3D-C arm.

The utility model provides a connecting device can be connected with imaging device through adaptor 100 to be connected with the scale through connection base 200, and adaptor 100 and connection base 200 can be connected through constant head tank 300 and location structure 400 cooperation, make the scale of installation on the connecting device can detachably set up on imaging device, in order to prevent that the scale from being out of shape at the in-process atress of installing on imaging device, the actual distribution figure that keeps the scale is the same with preset distribution figure, thereby guarantee the precision of image registration operation.

In some embodiments of the present invention, the opaque object is disposed on the scale plate according to a predetermined pattern to form the marking point on the X-ray image.

As an optional embodiment, a threaded hole 700 is formed in the adaptor 100, and a bolt for fastening the adaptor 100 to the imaging device is inserted into the threaded hole 700. A plurality of screw holes 700 may be provided. Further, the scale connecting equipment can be further bonded through solid glue, and the scale connecting equipment is stably connected to the imaging equipment. Alternatively, the adaptor 100 may be adhesively secured directly to the imaging device.

As an alternative embodiment, the adaptor 100 is adapted to be connected to an imaging device for connecting the scale plate to an imaging area of the imaging device, and is shaped to conform to a corresponding connection of the imaging device. For example, when connecting with an image intensifier, the adaptor 100 may be ring-shaped, and the corresponding connection base 200 may be column-shaped.

As an alternative embodiment, the connection base 200 may also be cylindrical, and an accommodating groove is provided at one end of the connection base 200 connected to the image forming apparatus for accommodating the image forming apparatus; during assembly, the adaptor 100 is assembled on the inner wall of the accommodating groove of the connection base 200 and sleeved on the imaging device. Specifically, the accommodating groove may be used to accommodate the image intensifier, and the adaptor 100 may be sleeved on the image intensifier. The receiving groove is configured to accommodate a corresponding connection of the imaging device, such as an image intensifier.

In some embodiments of the present invention, the image intensifier is cylindrical based on the conventional structure, the connection base 200 can be a cylindrical structure, and the receiving groove is a circular groove. Providing the connection base 200 as a cylindrical shape can reduce the volume of the connection base 200, reduce the mass of the connection device, and facilitate connection with an image intensifier.

In other embodiments of the present invention, the connection base 200 may also be polygonal column-shaped or square tube-shaped.

In some embodiments of the present invention, the outer wall of the connection base 200 may be hollow, which reduces the weight of the connection device. As an alternative embodiment, the outer wall of the connection base 200 is provided with a plurality of lightening holes. In the embodiment of the present invention, six lightening holes are uniformly formed on the outer cylindrical surface of the connection base 200.

As an alternative embodiment, the adapter 100 may be formed by at least two connection units connected together. Specifically, a plurality of connection units may be detachably connected to form the adaptor 100. In the use, operating personnel can install a plurality of connecting element respectively on imaging device, then assemble a plurality of connecting element together to avoid when imaging device edge is radially equipped with protruding structure, block the installation of adapter ring, simplify the installation and also reduce the diameter of go-between, reduce connecting device's volume.

As another alternative, the adapter 100 may also be integrally formed.

Because the in-process of image registration still need acquire the spatial position of scale, consequently, the utility model provides an in, can also be provided with the spike subassembly on connecting device's the lateral wall, make the spatial position appearance can acquire connection base 200's spatial position through detecting the spike subassembly to the spatial position of scale is calculated out. In particular, the tracing component can be an infrared emitter or an infrared reflective ball.

In the embodiment of the present invention, the inner wall of the connection base 200 may be provided with a wiring groove for placing a wire used for the infrared emitter.

In some embodiments of the present invention, the adaptor 100 is first connected to the imaging device, or the adaptor 100 may be used to be fixedly mounted on the imaging device to reduce the number of times of disassembly; then, the connection base 200 is connected to the adaptor 100. The adaptor 100 and the connection base 200 may be connected by the cooperation of the positioning groove 300 and the positioning structure 400.

As an alternative embodiment, the positioning structure 400 may include: the latch 420 is connected to the driving member, the latch 420 penetrates the connection base 200, and the driving member is used for driving the latch 420 to move between a first position inserted into the positioning slot 300 and a second position separated from the positioning slot 300.

Fig. 3 shows a schematic cross-sectional view of a connection device according to an embodiment of the invention in an unlocked state; fig. 4 shows a partial schematic structure of a connecting device according to an embodiment of the present invention in an unlocked state; fig. 5 shows a partial structural schematic diagram of a connection device in a locked state according to an embodiment of the present invention.

As shown in fig. 3 to 5, when the latch 420 is located at the first position, the latch 420 is inserted into the positioning slot 300, the adaptor 100 and the connection base 200 are fixed to each other, and the connection device is in a locked state. When the latch 420 is in the second position, the latch 420 disengages from the detent 300, the docking assembly is unlocked, and the docking station 200 may be disengaged from the adaptor 100.

Fig. 6 shows an assembly diagram of the positioning structure 400 of the connecting device according to the embodiment of the present invention. Fig. 7 shows another assembly diagram of the positioning structure 400 of the connecting device according to the embodiment of the present invention. Fig. 8 shows a schematic structural diagram of a knob 430 according to an embodiment of the present invention.

As an alternative embodiment, as shown in fig. 6 to 8, the driving assembly includes: a guide holder 410 connected to the connection base, and a knob disposed at a side of the guide holder 410 away from the connection base 200, wherein the pin 420 penetrates through the guide holder 410 and is connected with the knob 430; the side of the guide holder 410 away from the connection base 200 has a guiding curved surface 411, the knob is provided with a sliding block 431, and the sliding block 431 abuts against the guiding curved surface 411, so that the knob 430 can drive the latch 420 to move between the first position and the second position when the sliding block 431 moves along the guiding curved surface 411. Specifically, the latch 420 may be fixedly coupled or removably coupled, such as by a threaded connection, to the knob 430.

Alternatively, the driving assembly includes a guide holder 410 provided with an internal thread, and a knob 430 provided with an external thread, the bolt 420 penetrates through the guide holder 410, one end of the bolt 420 is connected with the knob 430, the guide holder 410 is in threaded connection with the knob 430, and the bolt 420 is driven to move between the first position and the second position when the knob 430 is rotated.

As an optional implementation manner, the positioning structure 400 further includes an elastic member 440, one end of the bolt 420 close to the positioning groove 300 is provided with a limiting protrusion, and the elastic member 440 is disposed between the limiting protrusion and one side of the guide seat 410 connected to the connection base, or between the inner wall of the connection base and the limiting protrusion. In one embodiment, the latch 420 has a tendency to move toward the first position such that the latch 420 moves from the second position to the first position under the action of the resilient member 440. Alternatively, in other embodiments, the resilient member may be configured to cause the latch to have a tendency to move toward the second position such that the latch 420 moves from the first position to the second position under the action of the resilient member 440.

In some embodiments of the present invention, a groove for accommodating the elastic member 440 may be disposed on the connection base 200, so that the elastic member 440 is disposed between the limiting protrusion and one side of the guide seat 410 connected to the connection base.

In some embodiments, the resilient member 440 may be a compression spring, which tends to insert the positioning slot 300 into the latch 420, thereby preventing the latch 420 from being disengaged by the spring. In another embodiment of the present invention, the elastic member 440 may also be a rubber gasket.

As an alternative embodiment, the shape of the guide seat 410 may match the shape of the adaptor 100, and may be a column, specifically a cylinder.

As an alternative embodiment, the guiding curved surface 411 includes a slope and a rest surface 412 connected in series, so that when the knob 430 is rotated, the slider 431 can move along the slope and the rest surface 412 in sequence and stop at the rest surface 412, and the knob 430 moves along the slope and the rest surface 412 in sequence to move the bolt 420 between the first position and the second position.

As an alternative embodiment, the guide curved surface 411 is provided at both ends thereof with a rest surface 412, respectively. Referring to fig. 7, the guiding curved surface 411 may include a resting surface 412, an inclined surface and a resting surface 412 connected, such that the slider 431 may be in a state where the resting surface 412 is maintained after locking and unlocking, and the latch 420 is moved by the inclined surface during unlocking or locking. The combination of the curved guide surface 411 and the slider is designed to facilitate the adjustment of the position between the adaptor 100 and the connection base 200 by the operator.

Specifically, in some embodiments of the present invention, the rest surface 412 may be a plane perpendicular to the axis of the bolt 420, and when the slider 431 abuts on the rest surface 412, the friction force between the slider 431 and the rest surface 412 prevents the slider 431 from sliding relative to the guiding curved surface 411, so as to lock the position of the slider 431, thereby locking the matching state between the bolt 420 and the positioning groove 300, and keeping the bolt 420 in the locked state or the unlocked state. In another embodiment of the present invention, the resting surface 412 may also be a curved surface.

In some embodiments of the present invention, the guiding seat 410 is symmetrically provided with a plurality of guiding curved surfaces 411 along the axis of the plug 420, and the knob 430 is correspondingly provided with a plurality of sliding blocks 431. Thus, the locking or unlocking process is more stable, and the connecting device is more stable.

In some embodiments of the present invention, the inner wall of the connection base 200 and the outer wall of the adaptor 100 can be attached to each other, so that the connection base 200 can only move along the axial direction of the connection base 200 and rotate around the axis of the connection base 200 relative to the adaptor 100, and the relative position between the connection base 200 and the adaptor 100 can be fixed by the cooperation of the positioning groove 300 and the positioning structure 400.

As shown in fig. 6 to 8, as an alternative embodiment, a plurality of positioning grooves 300 are disposed on the adaptor 100, and a plurality of positioning structures 400 are disposed on the connection base 200 in a one-to-one correspondence manner.

When the number of the positioning grooves 300 and the positioning structures 400 is three or more and are disposed around the adaptor 100, in the case where the connection base 200 does not adhere to the adaptor 100, the relative position between the connection base 200 and the adaptor 100 can be fixed by the mutual fitting of the positioning grooves 300 and the positioning structures 400. Because connect through a plurality of constant head tanks 300 and location structure 400, consequently, adaptor 100 and connection base 200 need not to carry on spacingly through laminating each other to can reduce the area of contact of adaptor 100 and connection base 200, and then can reduce the volume of adaptor 100 and connection base 200, with the holistic quality that reduces connecting device, reduce the burden to imaging device.

In other embodiments of the present invention, the positioning groove 300 and the positioning structure 400 may be only one, and the positioning structure is assisted by the cooperation between the fixed limit pin and the limit groove, so that the structure is simplified and the operation steps are simplified compared with the scheme of the three positioning structures 400.

As an alternative embodiment, the positioning groove 300 is a circular groove or a square groove.

As an alternative embodiment, the connection base 200 is cylindrical or cylindrical, one of the outer cylindrical surface of the adaptor 100 and the opposite surface of the connection base and the outer cylindrical surface of the adaptor 100 is provided with one or more limiting grooves 500, the other is provided with one or more limiting pins 600 adapted to the limiting grooves 500, and the limiting grooves 500 and the limiting pins 600 are used for cooperating with each other to limit the axial translation of the adaptor 100 along itself.

As an alternative embodiment, when the limiting groove 500 is disposed on the adapter 100, the limiting groove 500 extends from the end surface of the adapter 100 along a predetermined path, and two ends of the limiting groove are located on different straight generatrices of the outer cylindrical surface and on different alignment lines of the outer cylindrical surface.

As an alternative embodiment, the spacing groove 500 may be an L-shaped groove including a circumferentially extending portion and an axially extending portion.

As an alternative, the limiting groove 500 may also be a spiral groove. The connection device firstly enables the connection base 200 to be screwed in or out only relative to the adapter 100 through the matching of the limiting groove 500 and the limiting pin 600, and then locks the relative position between the adapter 100 and the connection base 200 through the positioning groove 300 and the positioning structure 400.

In the using process of the connecting device, the limiting groove 500 and the limiting pin 600 are firstly matched to enable the connecting base 200 to only circumferentially rotate relative to the adapter 100, and then the positioning groove 300 and the positioning structure 400 are used for locking the relative position between the adapter 100 and the connecting base 200. The assembly direction of the connecting base is limited through the limiting pin and the limiting groove, and then the positioning groove is used for positioning, so that the connecting device can be simply and directionally rotated and assembled on the imaging equipment.

Further, the angular interval between two adjacent stopper pins 600 is not greater than 180 °.

As an alternative embodiment, the positioning groove 300 is disposed at an end of the limiting groove 500 away from the end surface of the adapter 100.

In the using process, the pin 420 first enters the limiting groove 500, and after reaching the end of the limiting groove 500 far away from the end surface of the adaptor 100, the pin 420 aligns with the positioning groove 300, and then the pin 420 is driven by the driving component to be inserted into the positioning groove 300, so as to lock and fix the relative position between the adaptor 100 and the connection base 200. The alignment of the pins 420 with the positioning grooves 300 is facilitated, and the pins 420 can protrude from the inner cylindrical surface of the connection base 200 without forming grooves in the connection base 200 for the elastic members 440.

As an alternative embodiment, the positioning groove 300 and the limiting groove 500 are blind grooves. Alternatively, the positioning groove 300 is a through hole and the limiting groove 500 is a blind groove.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims. While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, and particularly, various features shown in the various embodiments may be combined in any combination as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (12)

1. A connection device, comprising:

the adapter is used for being connected with the imaging equipment, and a positioning groove is formed in the adapter;

the connecting base comprises a first end used for installing the scale plate and a second end used for being matched and connected with the adaptor, and a positioning structure matched with the positioning groove is arranged on the second end; the positioning groove is matched with the positioning structure, so that the adapter is detachably connected with the connecting base.

2. The connection device of claim 1, wherein the positioning structure comprises: the bolt and the drive assembly are connected with each other, the bolt penetrates through the connecting base, and the drive assembly is used for driving the bolt to move between a first position inserted into the positioning groove and a second position separated from the positioning groove.

3. The connection device of claim 2, wherein the drive assembly comprises:

the connecting base is connected with the connecting base through a connecting piece, and the connecting base is connected with the connecting piece through a connecting piece; one end of the bolt is connected with the knob, and the other end of the bolt penetrates through the guide seat and the connecting base in sequence;

the side face, far away from the connecting base, of the guide seat is provided with a guide curved surface, the knob is provided with a sliding block, and the sliding block abuts against the guide curved surface, so that when the sliding block moves along the guide curved surface, the knob can drive the bolt to move between the first position and the second position.

4. The connection device of claim 3, wherein the drive assembly further comprises: the bolt is close to one end of the positioning groove and is provided with a limiting bulge, the elastic piece is arranged between the guide seat and the limiting bulge, and therefore the bolt can move from the second position to the first position or from the first position to the second position under the elastic acting force of the elastic piece.

5. The connecting device as claimed in claim 3, wherein the curved guide surface comprises a slope surface and a rest surface connected in succession so that the slider can move along the slope surface and the rest surface in turn and rest on the rest surface when rotated, and the knob drives the pin to move between the first position and the second position when moved along the slope surface and the rest surface in turn.

6. The connecting device according to claim 1, wherein a plurality of groups of the positioning grooves are arranged on the adapter, and a plurality of groups of the positioning structures are arranged on the connecting base in a one-to-one correspondence manner; and/or

The adapter is provided with a threaded hole used for being matched with a bolt, and the bolt used for tightly pressing and fixing the adapter on the imaging equipment penetrates through the threaded hole.

7. The connecting device according to any one of claims 1 to 6, wherein the adaptor is annular and the connecting base is cylindrical or barrel-shaped.

8. The connecting device according to claim 7, wherein the connecting base is cylindrical or cylindrical, and an accommodating groove is provided at an end of the connecting base, which is connected to the image forming apparatus, for accommodating the image forming apparatus;

during assembly, the adaptor is assembled on the inner wall of the connecting base accommodating groove and sleeved on the imaging equipment.

9. The connection device of claim 8,

the adapter is characterized in that one side of the adapter opposite to the outer cylindrical surface of the adapter and the side of the connecting base opposite to the outer cylindrical surface of the adapter are provided with one or more limiting grooves, the other side of the adapter opposite to the outer cylindrical surface of the adapter is provided with one or more limiting pins matched with the one or more limiting grooves, and the limiting grooves and the limiting pins are matched with each other to limit the adapter and the connecting base to move relatively.

10. The connecting device according to claim 9, wherein when the limiting groove is disposed on the adapter, the limiting groove extends from the end surface of the adapter along a predetermined path, and two ends of the limiting groove are located on different straight generatrices of the outer cylindrical surface and on different alignment lines of the outer cylindrical surface.

11. The connecting device according to claim 10, wherein the positioning groove is disposed at an end of the limiting groove away from the end surface of the adapter.

12. The connecting device of claim 11, wherein the limiting groove is an L-shaped groove, and the positioning groove is a circular groove or a square groove.

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