CN216365782U - General surgery department clinical operation positioner - Google Patents

Abstract

The utility model relates to a general surgery department clinical operation positioning device, at least comprising: a first table for carrying a patient; the channels are distributed on two sides of the first platform body and are formed by a rectangular block body in a mode that at least one part of the rectangular block body is inwards sunken, and the rectangular block body is connected with the first platform body; the clamping mechanism is positioned above the first table body, is in transmission connection with the channel through a plurality of adjusting components and can be used for clamping different parts of a patient, the surface of the first table body is movably connected with the second table body, the clamping mechanism at least comprises a first clamp body and a second clamp body which are arranged oppositely, the clamping mechanism at least can rotate based on the change of the inclination angle of the second table body when the clamping mechanism is positioned, and the first clamp body and the second clamp body can be connected at least through a first adjusting rod arranged between a first connecting block and a second connecting block on the respective side face.

Description

General surgery department clinical operation positioner

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a positioning device for a clinical operation in general surgery department.

Background

The general surgery department is a clinical subject which mainly treats tumors, traumas and other diseases of parts such as liver, stomach, intestine, anus and intestine, blood vessel diseases, breasts and the like by taking operations as main methods, is the largest special subject of a surgical system, and general comprehensive hospital surgeries comprise orthopedics, neurosurgery, cardiothoracic surgery, urology surgery and the like besides the general surgery department, some hospitals even divide the general surgery department into neck and breast surgery, stomach and intestine surgery, liver, gallbladder, pancreas and spleen surgery and the like, and anorectal department, burn plastic surgery, blood vessel surgery, pediatric surgery, transplantation surgery, nutrition department and the like are related to the general surgery department.

When general surgery department carries out the operation, needs to carry out work such as operating to patient's body position, and in carrying out the operation to the patient, the patient can appear phenomenon such as unconscious removal, and to the operation, this is dangerous undoubtedly, so need fix patient operation position, fix the operation position.

CN212913412U discloses a department of general surgery clinical operation positioner. Including the bottom plate, the four corners department fixed mounting of bottom plate has the guide bar, has the assembly plate through sliding sleeve slidable mounting on the guide bar, and fixed mounting has hydraulic cylinder on the central point of bottom plate puts, and hydraulic cylinder's piston rod and assembly plate fixed connection, the slide rail is installed to the upper surface symmetry of assembly plate, and slidable mounting has the fixing base on the slide rail, and the equipartition is provided with the locating hole on the assembly plate in the slide rail outside. This positioner structural design is reasonable, effectively improves the stationarity of assembly plate through the guide bar, and this positioner's fixing base can slide, through different locating hole and pilot hole and positioning screw's cooperation, has strengthened the flexibility that forms fixed state to sick leg of patient when performing the operation to be suitable for the long patient of different height legs, thereby guarantee that the operation can be steady, smooth going on.

However, most of the existing positioning devices have poor flexibility, and can only be used for fixing a certain position, so that the existing positioning devices have great limitations. Secondly, when the limb of the patient is positioned, the limb positioning device cannot effectively adapt to the posture difference of different patients and different parts of the patients, and cannot meet the positioning requirements of various patients. Furthermore, since most positioning devices have poor adjustability, the effect of positioning the surgical site is relatively poor, and a certain discomfort is easily caused to the patient. Thus, there remains a need in the art for at least one or several aspects of improvement.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a positioning device for a general surgical clinical operation, aiming at solving at least one or more technical problems in the prior art.

In order to achieve the above purpose, the present invention provides a positioning device for general surgical clinical operation, which at least comprises: a first table for carrying a patient; the channels are distributed on two sides of the first platform body and are formed by a rectangular block body in a mode that at least one part of the rectangular block body is inwards sunken, and the rectangular block body is connected with the first platform body; the clamping mechanism is positioned above the first table body, is in transmission connection with the channel through a plurality of adjusting components, and can be used for clamping different parts of a patient.

Preferably, the clamping mechanism comprises at least a first clamp body and a second clamp body which are opposite to each other, and the first clamp body and the second clamp body can be connected at least through a first adjusting rod arranged between a first connecting block and a second connecting block on the respective sides.

Preferably, the surface of the first table body is movably connected with a second table body, the clamping mechanism at least comprises a first clamp body and a second clamp body which are arranged oppositely, and the clamping mechanism can rotate based on the change of the inclination angle of the second table body at least when the clamping mechanism is positioned.

Preferably, one end of the first adjusting rod is connected to the second connecting block, and the other end thereof penetrates through the first connecting block and is connected to the limiting block.

Preferably, a second adjusting rod is further arranged between the first clamp body and the second clamp body, the second adjusting rod is rotatably connected to the second connecting block, and the other end of the second adjusting rod penetrates through the first connecting block and is connected with a handle.

Preferably, at least one elastic member is sleeved on at least a part of the rod body of the first adjusting rod between the first connecting block and the limiting block in an axially telescopic manner based on the movement of the first adjusting rod, and two ends of the elastic member are respectively connected to the first connecting block and the limiting block.

Preferably, the inside of the channel is slidably connected with a connecting seat capable of moving along the extending direction of the channel.

Preferably, the connecting seat is provided with a first connecting rod and a second connecting rod respectively at one side of the channel, and the first connecting rod and the second connecting rod extend to the bottom of the channel close to one end of the connecting seat.

Preferably, one end of the first connecting rod, which is far away from the connecting seat, is connected to the damping shaft, and one side of the damping shaft, which is back to the first connecting rod, is connected to a fixing block with a cavity structure.

Preferably, a transmission gear is rotatably connected inside the fixing block.

Preferably, the outside of fixed block is provided with the second fastener, and second fastener surface clearance is provided with a plurality of logical grooves.

Preferably, the adjusting rod is connected with the transmission gear at one end extending into the fixing block, and an inserting part matched with the adjusting rod in shape is arranged on one side of the adjusting rod relative to the through groove.

Preferably, a housing is connected to a side of the fixed block away from the damping shaft, and the housing has a hollow chamber at least partially communicated with the hollow chamber of the fixed block.

Preferably, the housing is provided with a rack near the bottom thereof, and a side of the rack near the transmission gear is configured as a tooth surface formed by a plurality of saw teeth capable of fitting with the transmission gear.

Preferably, a third connecting rod is arranged at a position of the shell close to the top of the shell, and the third connecting rod is positioned at one side of the rack far away from the transmission gear and connected with the rack.

Preferably, one end of the third connecting rod penetrating to the outer side of the shell along the axial direction is connected with the clamping mechanism.

Preferably, at least a portion of a side of the first and second clip bodies opposite to each other is configured as a curved surface, and a pressure relief pad is connected to the curved surface side.

Preferably, one side of the first table body, which faces the ground, is provided with a plurality of supporting columns, and one ends of the supporting columns, which are close to the ground, are provided with universal wheels.

Preferably, the side of the supporting column is provided with a pressing plate which is abutted against the universal wheel.

Preferably, a cross rod is arranged between the at least two support columns, a push rod is arranged between the cross rod and the second table body, one end of the push rod is movably connected to the cross rod, and the other end of the push rod penetrates through the first table body and is movably connected to the second table body.

The beneficial technical effects of the utility model comprise one or more of the following:

1. the clamping mechanism can adjust the clamping point position of the clamping mechanism from three degrees of freedom of the length, the width and the height of the first table body so as to meet the body posture difference of different patients, and meanwhile, based on the structural design of the clamping mechanism, the clamping force of the clamping mechanism can be conveniently adjusted so as to adapt to the size difference when different parts are clamped and positioned, so that the positioning effect is improved, and the smooth implementation of the operation is facilitated;

2. the movable second platform is arranged, so that the body position of a patient sometimes needs to be adjusted when medical personnel perform an operation, and the pitching angle of the upper limbs or the lower limbs of the patient can be changed through the second platform, so that the medical personnel can perform the operation conveniently; meanwhile, in the process of changing the inclination angle of the second platform to adjust the body position of a patient, the clamping mechanism can follow the rotation of the second platform, and the angle of the clamping mechanism when the clamping mechanism is fixed on the patient is changed adaptively, so that the overall flexibility of the device is improved, and the comfort level of the patient is improved.

Drawings

FIG. 1 is a front view of the preferred embodiment of the present invention;

FIG. 2 is a preferred cross-sectional view of the present invention;

FIG. 3 is a top view of the preferred embodiment of the present invention;

fig. 4 is a preferred enlarged partial schematic view at a in fig. 2.

List of reference numerals

10: first stage 11: support column 12: universal wheel

13: the pressing plate 14: channel 15: connecting seat

16: first connecting rod 17: first fastener 18: damping shaft

19: fixing block 20: the clamping mechanism 21: shell body

22: second fastener 23: through grooves 24: adjusting rod

25: third connecting rod 26: rack 27: transmission gear

28: second connecting rod 201: first clip body 202: second clip body

203: the pressure relief pad 204: first connection block 205: second connecting block

206: first adjustment lever 207: first through hole 208: elastic piece

209: the limiting block 210: the second adjusting lever 211: handle bar

212: second through hole 213: bearing 30: second table body

31: cross bar 32: push rod

Detailed Description

This is described in detail below with reference to fig. 1-4.

In the description of the present invention, it is to be understood that, if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used for indicating the orientation or positional relationship indicated based on the drawings, they are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

The utility model provides a positioning device for a general surgical clinical operation, which can comprise one of the following components: the surgical table comprises a first table body 10 which is approximately rectangular and used for bearing limbs of a patient, adjusting components which are arranged on two sides of the first table body 10 and are composed of a plurality of connecting rods, a channel 14, a connecting seat 15 and the like, and a clamping mechanism 20 which is arranged above the first table body 10 and used for clamping and positioning a surgical site of the patient. Further, the clamping mechanism 20 is coupled to an adjustment assembly, such that the clamping or securing point of the clamping mechanism 20 can be changed by the adjustment assembly.

According to a preferred embodiment, substantially at the four peripheral corners of the side of the first table body 10 facing the ground, there are provided cylindrical support columns 11 for supporting the device. One end of the supporting column 11 facing the ground is connected with a universal wheel 12, and the device can be conveniently moved through the universal wheel 12. The side of the supporting column 11 is provided with a pressing plate 13 which is abutted against the universal wheel 12, and the device which is moved to a proper direction can be fixed by the pressing plate 13 to prevent the device from sliding.

According to a preferred embodiment, the first table body 10 is configured as a substantially L-shaped table top and the second table body 30 is pivotally connected at the recess of its L-shaped surface by means of a hinge located substantially in the middle of the first table body 10. Alternatively, the second table 30 may be disposed at a position substantially corresponding to the upper body or the lower body of the patient. Further, a cross bar 31 is connected between at least two support columns 11. The second table body 30 is connected to a cross bar 31 via a push rod 32 at the side which is back to the patient. Specifically, one end of the push rod 32 is articulated to the cross bar 31 at a substantially middle position by a hinge, and the other end thereof is articulated to the bottom of the second stage 30 through a slot on the surface of the first stage 10. Preferably, the push rod 32 is an electric push rod. When carrying out the operation location, need adjust patient's position sometimes, the steerable second stage body 30 of removal through drive push rod 32 rotates for the axis around its position of being connected with first stage body 10 to can raise patient's upper part of the body or lower part of the body, in order to make things convenient for medical personnel to carry out the operation.

According to a preferred embodiment, channels 14 are provided on both sides symmetrical to each other about the central axis of the first table body 10. Specifically, the channel 14 is constructed by a rectangular block body that is recessed into itself at least in part to form a generally concave channel. The channel 14 is parallel to and extends along the length of the first stage 100. Further, one end of the rectangular block body close to the first stage 10 is fixedly connected to the bottom of the first stage 10. A connecting seat 15 matched with the shape of the channel 14 is movably connected inside the channel. Preferably, the attachment sockets 15 are movable in a direction generally parallel to the patient's torso by the channels 14.

According to a preferred embodiment, a first connecting rod 16 is connected to one of the ends of the connecting socket 15 that is to be backed on the side of the channel 14. Preferably, the first connecting rod 16 may be a retractable electric push rod. A first connecting rod 16 extends near one end of the connecting socket 15 and through to the bottom of the channel 14. Further, a second connecting rod 28 is connected to the other end of the connecting seat 15, which is backed to the side of the channel 14. Similarly, a second connecting rod 28 extends near one end of the connecting base 15 and through to the bottom of the channel 14. Preferably, the second connecting rod 28 may be a threaded rod for adjusting the fixing position of the connecting seat 15 in the channel 14.

According to a preferred embodiment, the circumferentially outer side of the second connecting rod 28 is provided with a first fastening member 17. Specifically, the first fastener 17 may be a nut structure that mates with an external thread of the second connecting rod 28.

According to a preferred embodiment, the end of the first connecting rod 16 remote from the connecting socket 15 is connected to a damping shaft 18. A substantially polygonal fixing block 19 with a cavity structure is rotatably connected to the side of the damping shaft 18, which is back to the first connecting rod 16. The fixed block 19 is internally provided with a transmission gear 27. The transmission gear 27 is rotatably connected with the inner wall of the fixed block 19. Preferably, the connection seat 15, the first connection rod 16 and the fixing block 19 may constitute a lifting part for adjusting the longitudinal height of the clamping mechanism 20.

According to a preferred embodiment, the fixed block 19 is provided on its outside with a second fastening member 22 of substantially annular configuration. A plurality of circular through grooves 23 are arranged along the annular disc surface of the second fastening piece 22 at intervals. Further, a substantially L-shaped adjusting lever 24 is connected to a substantially center position of the second fastening member 22 and is disposed parallel to the annular disc surface of the second fastening member 22. Specifically, one end of the adjusting rod 24 is connected to and extends into the fixing block 19, and is connected to the transmission gear 27. The side of the adjusting rod 24 is provided with a plug-in part matched with the shape of the through groove 23. For example, the plug portion may be a bayonet structure. The other end of the adjustment lever 24 may be provided with a knob shaped toggle portion. Preferably, the adjusting lever 24 is rotated by the dial portion so that the transmission gear 27 can be synchronously rotated, and the adjusting lever 24 is positioned by the through groove 23 on the surface of the second fastening member 22.

According to a preferred embodiment, a substantially rectangular housing 21 is connected to the side of the fixing block 19 remote from the damping shaft 18. The housing 21 has a hollow chamber and the hollow chamber is communicated with the cavity of the fixed block 19, so that at least a part of the wheel body of the transmission gear 27 located in the cavity of the fixed block 19 can be contained in the hollow chamber. Further, a rack 26 extending in the length direction of the housing 10 is provided at a position substantially at the bottom of the hollow chamber of the housing 21. The side of the toothed rack 26 adjacent to the pinion 27 is configured as a toothed surface formed by a plurality of teeth arranged with a clearance matching the shape of the pinion 27, so that the pinion 27 can form a fit with the toothed rack 26 when it is rotated against the toothed rack 26.

According to a preferred embodiment, a third connecting rod 25 is also provided in the hollow chamber of the housing 21. The third connecting rod 25 is connected to the side of the rack 26 remote from the transmission gear 27. Further, one end of the third connecting rod 25 in its axial direction penetrates to the outside of the housing 21, and the clamp mechanism 20 is rotatably connected.

According to a preferred embodiment, the aforementioned adjusting assembly may include a connecting seat 15, a first connecting rod 16, a first fastening member 17, a damping shaft 18, a fixing block 19, a housing 21, a second fastening member 22, a through groove 23, an adjusting rod 24, a third connecting rod 25, a rack 26, a transmission gear 27, and a second connecting rod 28.

According to a preferred embodiment, the clamping mechanism 20 comprises at least a first clamp body 201 and a second clamp body 202, which are identical in shape and are positioned opposite each other, wherein the first clamp body 201 is connected to the third connecting rod 25. Specifically, at least a portion of the side of the first clip body 201 and the second clip body 202 opposite to each other is configured as a curved structure extending in the arm or leg direction of the patient, and a pressure relief pad 203 is provided on the surface of the curved structure. The pressure relief pad 203 may be a sponge pad, a silicone pad, or the like. Preferably, when the surgical site of the patient is positioned by the first clip body 201 and the second clip body 202, the pressure-relieving pad 203 can relieve the compression feeling of the surgical site of the patient by the first clip body 201 and the second clip body 202, thereby improving the comfort of the patient.

According to a preferred embodiment, a first connecting block 204 and a second connecting block 205 are respectively connected to the sides of the first clamp body 201 and the second clamp body 202 away from the first table body 100. Further, a first through hole 207 vertically penetrating through the first connecting block 204 is disposed at an end of the first connecting block 204 away from the first clamp body 201. A second through hole 212 vertically penetrating the first connecting block 204 is formed at one end of the first connecting block 204 close to the first clamp body 201.

According to a preferred embodiment, the first connecting block 204 is connected to a second adjusting lever 210 through a second through hole 212 at the bottom thereof. Preferably, the second adjustment lever 210 may be a threaded rod. Further, one end of the second adjustment lever 210 adjacent to the second connection block 205 is rotatably connected to a bearing 213 of a side of the second connection block 205. The end of the second adjustment lever 210 remote from the second connection block 205 is provided with a substantially circular handle 211.

In accordance with a preferred embodiment, the first adjustment lever 206 is disposed above the second adjustment lever 210. The first adjusting lever 206 is slidably coupled to a first through hole 207 formed at the top of the first connecting block 204. Further, one end of the first adjustment lever 206 near the second connection block 205 is fixedly connected to the side of the second connection block 205. The end of the first adjusting rod 206 away from the second connecting block 205 is provided with a substantially rectangular or circular stop block 209. Preferably, the first adjustment lever 206 and the second adjustment lever 210 are disposed parallel to each other.

According to a preferred embodiment, an elastic member 208 is sleeved on a portion of the rod body of the first adjusting rod 206 between the first connecting block 204 and the limiting block 209. The two ends of the elastic member 208 are connected to the first connecting block 204 and the stopper 209, respectively. Preferably, the resilient member 208 is a compression spring.

Preferably, the handle 211 is rotated counterclockwise or clockwise to rotate the second adjustment rod 210 in the same direction so as to move the second clip body 202 and the first clip body 201 relatively close to and/or away from each other, so as to change the clamping force of the clamping mechanism 20 formed by the second clip body 202 and the first clip body 201, or to adapt to the size difference of different parts of different patients, for example, the diameters of the arms and the legs of the patients are different. Secondly, during the process that the second clip body 202 rotates along with the second adjusting rod 210 and moves relative to the first clip body 201, the first adjusting rod 206 moves axially along the first through hole 207, and at least during the process that the first adjusting rod 206 moves, the elastic member 208 can respectively contact and press with the first connecting block 204 and the limiting block 209. In the process that the second clip body 202 is moved toward the first clip body 201 by the second adjustment rod 210, the elastic member 208 generates a tensile force opposite to the moving direction of the second adjustment rod 210 due to the tensile deformation, so that the second adjustment rod 210 and the second through hole 212 can be more closely connected based on the tensile force. Secondly, in the process of clamping the body of the patient based on the clamping mechanism 20, the posture requirement of the surgical operation can be better met by properly adjusting the lifting angle of the second table body 30, and in the process of rotating the second table body 30, the clamping mechanism 20 can rotate along with the second table body 30 to rotate adaptively, so that the discomfort caused by oppression or strangeness of the limb of the patient due to structure limitation is avoided.

According to a preferred embodiment, a switch and a power source may be disposed on the side of the rectangular block where the channel 14 is located, and the switch and the power source are electrically connected to a first connection rod 16 disposed on the top of the connection base 15. Preferably, the first connecting rod 16 can be controlled to extend and retract along a direction perpendicular to the first table 100 by a switch and a power supply so as to adjust the height of the clamping mechanism 20 relative to the patient and/or the first table 100.

For ease of understanding, the working principles and methods of use of a general surgical positioning apparatus of the present invention will be discussed.

When using the positioner who provides according to this application, make the patient lie on their back or bow to lie prone on first stage body 100, adjust the position of connecting seat 15 through channel 14 according to different patients' height or attitude difference to after confirming suitable position, utilize second connecting rod 28 to fix connecting seat 15. Next, the height of the clamping mechanism 20 is adjusted by driving the first connecting rod 16. After the clamping height is determined, the adjusting rod 24 is rotated to synchronously rotate the transmission gear 27, so that the third connecting rod 25 positioned on the top of the rack 26 is moved transversely relative to the central axis of the first table body 100 based on the transmission structure between the transmission gear 27 and the rack 26, to adjust the clamping point position of the clamping mechanism 20 from the horizontal direction. Further, based on the size difference of different fixed parts of the patient (for example, arms, thighs, etc.), the relative distance between the first clamp body 201 and the second clamp body 202 is adjusted by rotating the second adjusting rod 210, so as to adapt to the change of different parts to control the corresponding clamping force, and the opposite sides of the first clamp body 201 and the second clamp body 202 are respectively provided with a pressure relieving pad 203, which can relieve the compression feeling of the first clamp body 201 and the second clamp body 202 on the limb of the patient. In addition, when the fixing position and the clamping force of the clamping mechanism 20 are adjusted, the body position of the patient can be adjusted through the second table body 30, namely, the supine angle of the trunk of the patient is changed, so that the operation requirement is better adapted, and the operation of medical staff is facilitated.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the utility model. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the utility model is defined by the claims and their equivalents.

Claims (10)

1. A general surgical clinical positioning device, comprising at least:

a first table body (10) for carrying a patient,

channels (14) distributed on both sides of the first body (10) and constructed by a rectangular block body by means of recessing at least a part of the block body inwards, and the rectangular block body is connected with the first body (10),

a clamping mechanism (20) positioned above the first table body (10), is in transmission connection with the channel (14) through a plurality of adjusting components and can be used for clamping different parts of a patient,

it is characterized in that the preparation method is characterized in that,

the surface of the first table body (10) is movably connected with a second table body (30), the clamping mechanism (20) at least comprises a first clamp body (201) and a second clamp body (202) which are arranged oppositely, and the clamping mechanism (20) can rotate based on the change of the inclination angle of the second table body (30) at least when positioning is carried out,

the first clamp body (201) and the second clamp body (202) can be connected at least through a first adjusting rod (206) arranged between a first connecting block (204) and a second connecting block (205) on the side faces of the first clamp body and the second clamp body.

2. The positioning device according to claim 1, characterized in that the first adjustment lever (206) is connected at one end to the second connection block (205) and at the other end to the limiting block (209) through the first connection block (204).

3. The positioning device according to claim 1, characterized in that a second adjusting rod (210) is further arranged between the first clamp body (201) and the second clamp body (202),

the second adjusting rod (210) is rotatably connected to the second connecting block (205), and the other end of the second adjusting rod penetrates through the first connecting block (204) and is connected with a handle (211).

4. The positioning device according to claim 2, wherein at least one elastic member (208) is sleeved on at least a portion of the rod body of the first adjustment rod (206) between the first connecting block (204) and the limiting block (209) in a manner of extending and contracting in the axial direction thereof based on the movement of the first adjustment rod (206), and both ends of the elastic member (208) are connected to the first connecting block (204) and the limiting block (209), respectively.

5. The positioning device according to claim 1, characterized in that a connecting seat (15) capable of moving along the extending direction of the channel (14) is connected inside the channel (14) in a sliding manner,

the connecting seat (15) is provided with a first connecting rod (16) and a second connecting rod (28) respectively at one side back to the channel (14), and the first connecting rod (16) and the second connecting rod (28) extend to the bottom of the channel (14) close to one end of the connecting seat (15).

6. The positioning device according to claim 5, characterized in that the end of the first connecting rod (16) remote from the connecting seat (15) is connected to a damping shaft (18), a fixing block (19) having a cavity structure is connected to the side of the damping shaft (18) back to the first connecting rod (16),

wherein, the fixed block (19) is internally and rotatably connected with a transmission gear (27).

7. The positioning device according to claim 6, characterized in that the outside of the fixed block (19) is provided with a second fastening piece (22), the surface clearance of the second fastening piece (22) is provided with a plurality of through grooves (23),

the adjusting rod (24) is further arranged on the outer side of the fixing block (19), one end, connected with the adjusting rod (24), of the adjusting rod extends into the fixing block (19) and is connected with the transmission gear (27), and an inserting portion matched with the adjusting rod in shape is arranged on one side, opposite to the through groove (23), of the adjusting rod (24).

8. A positioning device according to claim 6, characterized in that a housing (21) is connected to the side of the fixing block (19) remote from the damping shaft (18), and that the housing (21) has a hollow chamber which at least partially communicates with the cavity of the fixing block (19),

wherein a rack (26) is arranged on the position of the shell (21) close to the bottom of the shell, and one side of the rack (26) close to the transmission gear (27) is configured as a tooth surface consisting of a plurality of saw teeth which can be matched with the shape of the transmission gear (27).

9. A positioning device according to claim 8, characterized in that the housing (21) is provided with a third connecting rod (25) near its top, said third connecting rod (25) being located on the side of the rack (26) remote from the transmission gear (27) and being connected to said rack (26),

wherein, the end of the third connecting rod (25) which penetrates to the outer side of the shell (21) along the axial direction is connected with the clamping mechanism (20).

10. The positioning device according to claim 1, wherein a plurality of support columns (11) are arranged on one side of the first table body (10) facing the ground, a cross bar (31) is arranged between at least two support columns (11),

a push rod (32) is arranged between the cross rod (31) and the second table body (30), one end of the push rod (32) is movably connected to the cross rod (31), and the other end of the push rod (32) penetrates through the first table body (10) and is movably connected to the second table body (30).

Images