CN115944482A - Inclination mechanism about electronic operation table - Google Patents

Abstract

The invention relates to a left and right inclination angle mechanism of an electric operating table, which comprises a base fixing unit, a rotating unit and a screw rod transmission unit, wherein the screw rod transmission unit is arranged at the position, close to the bottom, of the front end of the base fixing unit, the rotating unit is arranged on the outer side of the top of the base fixing unit, the screw rod transmission unit can drive the rotating unit on the outer side above the screw rod transmission unit to rotate, and an inclination angle detection unit is further arranged at the front end of the rotating unit. According to the invention, through the structural arrangement of the base fixing unit, the rotating unit and the screw rod transmission unit, the space layout is reasonable, and the height space can be saved; according to the invention, through the structural arrangement of the screw rod transmission unit, the bearing capacity and the anti-overturning torque capacity of the whole equipment are higher.

Description

Inclination mechanism about electronic operation table

Technical Field

The invention relates to the technical field related to medical instruments, in particular to a left and right inclination angle mechanism of an electric operating table.

Background

Through mass retrieval, the prior art is disclosed as CN211461023U, and the multi-section upright post and outer cover lifting type large-angle front-back left-right tilting device comprises a bottom plate, wherein four corners at the top end of the bottom plate are respectively hinged with the bottom ends of four supporting columns through ball hinges, one sides of the four supporting columns are respectively hinged with two ends of two longitudinal beams through ball hinges, one sides of the middle parts of the two longitudinal beams are respectively and fixedly connected with two ends of a cross beam, and one side of the top end of the bottom plate is fixedly provided with a supporting seat.

At present, the DSA electric operating bed with the tilting function mostly adopts the form of electric cylinder or hydraulic cylinder driving to tilt left and right, the tilting part is arranged on a mandrel, the basic part is provided with a shaft sleeve, and the mandrel is inserted in the middle of the shaft sleeve. An electric cylinder (or hydraulic cylinder) with two hinged ends is arranged at a position parallel to the mandrel and at a certain distance from the mandrel, the base of the cylinder body is arranged on the basic part, and the head of the piston is arranged on the hinged support of the inclined part. The piston stretches out and draws back, thereby promotes the whole slope of head hinged support. The structure occupies a large space and has no mechanical self-locking property.

In view of the above-mentioned drawbacks, the present designer has made active research and innovation to create a left/right tilt mechanism for an electric operating table, which has industrial value.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a left and right inclination angle mechanism of an electric operating table.

In order to achieve the purpose, the invention adopts the following technical scheme:

a left and right inclination angle mechanism of an electric operating table comprises a base fixing unit, a rotating unit and a screw rod transmission unit, wherein the screw rod transmission unit is installed at the position, close to the bottom, of the front end of the base fixing unit;

the base fixing unit comprises a front fixing vertical plate, two side fixing vertical plates and a rear fixing vertical plate which are spliced together, a front mandrel is installed at a position, close to the top, of the front fixing vertical plate, a rear oilless bushing is installed at a position, close to the top, of the rear fixing vertical plate, and the front mandrel and the rear oilless bushing are coaxially arranged;

the rotating unit comprises a front rotating vertical plate, two side rotating vertical plates and a rear rotating vertical plate which are spliced together, a front oilless bushing is installed at a position, close to the top, of the front rotating vertical plate, a rear core shaft is installed at a position, close to the top, of the rear rotating vertical plate, the front oilless bushing and the rear core shaft are coaxially arranged, the front core shaft is connected with the front oilless bushing, the rear core shaft is connected with the rear oilless bushing, two sliding block substrates which are distributed in parallel in the front-rear direction are arranged at the bottom of the front rotating vertical plate, an inclination angle sliding block is arranged at the bottom opening of each sliding block substrate, and a sliding block base plate is arranged between the two sliding block substrates;

the lead screw drive unit includes preceding mounting plate, the motor mounting panel, including a motor, an end cap, a controller, and a cover plate, back mounting plate, screw and lead screw, preceding mounting plate installs the bottom position on the fixed riser of side on right side, back mounting plate installs the bottom position on the fixed riser of left side, the motor passes through the bottom position of mounting plate installation mounting plate in the front of, the lead screw is installed in the front between mounting plate and the back mounting plate along the left and right sides direction, the output shaft on motor right side loops through motor gear from down up, idler gear and lead screw gear are connected with the lead screw, install the screw on the lead screw, both sides all are provided with circular shape screw lug around the screw, the inboard circular port of inclination slider embolias on the screw lug.

As a further improvement of the invention, the inclination angle detection unit comprises a rotor mounting plate, a rotor, a stator and a stator mounting plate, wherein the stator is mounted at the front end of the front mandrel through the stator mounting plate, the rotor is positioned at the outer side of the stator, the rotor is mounted on the rotor mounting plate, the rotor mounting plate is mounted on the front rotating vertical plate through a plurality of rotor mounting rods, and the rotor, the stator and the front mandrel are coaxial.

As a further improvement of the invention, an adjusting ring and a wear-resistant thrust washer are sequentially arranged on a front mandrel at the rear side of a stator mounting plate from front to back, the adjusting ring is arranged on the front mandrel through a locking nut and a stop washer, the adjusting ring is connected with the wear-resistant thrust washer at the rear end through a plurality of adjusting screw nut mechanisms along the circumferential direction, and the wear-resistant thrust washer is attached to a friction plate at the rear end of which the front rotating vertical plate is arranged.

As a further improvement of the invention, the adjusting screw and nut mechanism comprises an adjusting screw, an adjusting nut and a countersunk screw, the adjusting screw is arranged on the adjusting ring and penetrates through the front end and the rear end of the adjusting ring, the adjusting screw is arranged on the front end and the rear end of the adjusting ring through the two adjusting nuts, each adjusting screw is provided with two adjusting nuts and is respectively clamped on the two sides of the adjusting ring, the rear end of the adjusting screw is provided with an adjusting screw hole, the front end of the countersunk screw is connected with the adjusting screw hole, the wear-resistant thrust gasket is provided with a countersunk hole, and the rear end of the countersunk screw is arranged in the countersunk hole.

As a further improvement of the invention, a plurality of compression springs are uniformly arranged between the adjusting ring and the wear-resistant thrust washer along the circumferential direction.

As a further improvement of the invention, the left inner side and the right inner side of the bottom opening of the sliding block substrate are both provided with guide copper bars, the guide copper bars are arranged at the bottom opening of the sliding block substrate through copper bar locking screws, the guide copper bars are of a cylindrical structure, the front side and the rear side of the inclination angle sliding block are both provided with arc-shaped concave parts, the arc-shaped concave parts are connected with the outer diameter of the cylinder of the guide copper bars, and the arc-shaped concave parts can move up and down relative to the outer diameter of the cylinder of the guide copper bars.

As a further improvement of the invention, a front bearing pressing block is arranged on a front mounting bottom plate at the inner side of a screw rod gear, a thrust bearing fixing sleeve is arranged at the inner side of the front mounting bottom plate, a screw rod is arranged in the thrust bearing fixing sleeve through a front thrust bearing, the screw rod is arranged in a front bearing block through a front deep groove ball bearing, a thrust bearing adjusting sleeve is arranged on a rear mounting bottom plate at the left side of the screw rod, a rear bearing pressing block is arranged at the left side of the rear mounting bottom plate, the screw rod is arranged in the thrust bearing adjusting sleeve through a rear thrust bearing, the screw rod is arranged in a rear bearing block through a rear deep groove ball bearing, an idler gear is arranged between an idler tensioning block and a motor mounting plate through an idler shaft, the idler tensioning block is arranged on the motor mounting plate through a tensioning block cushion block, and the idler shaft is connected with the idler gear through a flange bearing.

As a further improvement of the invention, the left side and the right side of the idler shaft are respectively arranged in the grooves of the idler tensioning block and the motor mounting plate, and the idler shaft is fixed in the grooves of the idler tensioning block or the motor mounting plate through idler shaft compression screws.

As a further improvement of the invention, the thrust bearing adjusting sleeve can adjust the movement clearance of the thrust bearing adjusting sleeve along the left and right directions through a plurality of adjusting sleeve adjusting screws, and the tightening screw tightly pushes the adjusting screw to prevent the adjusting screw from loosening, thereby fastening the thrust bearing adjusting sleeve.

As a further improvement of the invention, a shaft end gasket is arranged on the screw rod outside the screw rod gear, and a shaft end gasket is arranged on the motor output shaft outside the motor gear.

By the scheme, the invention at least has the following advantages:

1. according to the invention, through the structural arrangement of the base fixing unit, the rotating unit and the screw rod transmission unit, the spatial layout is reasonable, and the height space can be saved;

2. according to the invention, through the structural arrangement of the screw rod transmission unit, the bearing capacity and the anti-overturning torque capacity of the whole equipment are higher;

3. the invention has mechanical self-locking property and is safer;

4. the axial clearance between the basic fixing unit and the rotating unit can be adjusted through the inclination angle detecting unit.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a left-right tilt mechanism of an electric operating table according to the present invention;

FIG. 2 is a schematic view of the structure of the base fixing unit of FIG. 1;

fig. 3 is a schematic view of the structure of the rotation unit in fig. 1;

FIG. 4 is a schematic front view of the screw drive unit of FIG. 1;

FIG. 5 is a rear view of the screw drive unit of FIG. 1;

FIG. 6 is a right side view of FIG. 4;

FIG. 7 isbase:Sub>A cross-sectional view taken about A-A of FIG. 6;

FIG. 8 is a partial structural view of the base fixing unit, the rotating unit and the inclination detecting unit of FIG. 1;

fig. 9 is a schematic view of the internal structure of fig. 8.

In the drawings, the meanings of the reference numerals are as follows.

The device comprises a base fixing unit 1, a rotating unit 2, a screw rod transmission unit 3 and an inclination angle detection unit 4;

the front fixing vertical plate 5, the side fixing vertical plate 6, the rear fixing vertical plate 7, the rear oilless bushing 8 and the front mandrel 9;

the device comprises a front rotating vertical plate 10, a front oilless bushing 11, a side rotating vertical plate 12, a rear rotating vertical plate 13, a rear mandrel 14, a sliding block base plate 15, a guide copper bar 16, a copper bar locking screw 17 and a sliding block base plate 18;

the device comprises a front mounting base plate 19, a motor mounting plate 20, a motor 21, a rear mounting base plate 22, a nut 23, a screw rod 24, a thrust bearing fixing sleeve 25, a front bearing pressing block 26, a thrust bearing adjusting sleeve 27, a rear bearing pressing block 28, a screw rod gear 29, a tensioning block cushion block 30, an idler tensioning block 31, an idler shaft 32, an idler shaft pressing screw 33, an idler gear 34, a motor gear 35, a shaft end gasket 36, an adjusting sleeve tightening screw 37, an adjusting sleeve adjusting screw 38, a front deep groove ball bearing 39, a front thrust bearing 40, a rear thrust bearing 41, a rear deep groove ball bearing 42 and a flange bearing 43;

the rotor mounting plate 44, the rotor 45, the stator 46, the rotor mounting rod 47, the stator mounting plate 48, the lock nut 49, the adjusting ring 50, the wear-resistant thrust washer 51, the friction plate 52 and the inclination angle slider 53.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in figures 1 to 9 of the drawings,

the utility model provides an inclination mechanism about electronic operation table, includes basic fixed unit 1, rotation unit 2 and screw drive unit 3, and screw drive unit 3 is installed near the position of bottom to the front end of basic fixed unit 1, and rotation unit 2 installs in the top outside of basic fixed unit 1, and screw drive unit 3 can drive the rotation unit 2 rotation in the top outside, and rotation unit 2's front end still is provided with inclination detecting element 4.

The base fixing unit 1 comprises a front fixing vertical plate 5, two side fixing vertical plates 6 and a rear fixing vertical plate 7 which are spliced together, a front mandrel 9 is arranged on the front fixing vertical plate 5 and close to the top, a rear oilless bushing 8 is arranged on the rear fixing vertical plate 7 and close to the top, and the front mandrel 9 and the rear oilless bushing 8 are coaxially arranged;

the rotation unit 2 includes the preceding riser 10 that rotates that splices each other together, two side riser 12 and the riser 13 of rotating afterwards, preceding oilless bush 11 is installed near the position at top on the preceding riser 10 of rotating, the back dabber 14 is installed near the position at top on the riser 13 of rotating afterwards, preceding oilless bush 11 sets up with the axle center with back dabber 14, preceding dabber 9 is connected with preceding oilless bush 11, back dabber 14 is connected with back oilless bush 8, the bottom of preceding riser 10 of rotating is provided with two slider base plates 15 along fore-and-aft direction distribution side by side, the bottom opening part of slider base plate 15 is provided with inclination slider 53, be provided with slider backing plate 18 between two slider base plates 15.

The screw rod transmission unit 3 comprises a front mounting base plate 19, a motor mounting plate 20, a motor 21, a rear mounting base plate 22, a screw 23 and a screw rod 24, the front mounting base plate 19 is mounted at the bottom position of the side fixing vertical plate 6 on the right side, the rear mounting base plate 22 is mounted at the bottom position of the side fixing vertical plate 6 on the left side, the motor 21 is mounted at the bottom position of the front mounting base plate 19 through the motor mounting plate 20, the screw rod 24 is mounted between the front mounting base plate 19 and the rear mounting base plate 22 along the left and right side directions, an output shaft on the right side of the motor 21 is connected with the screw rod 24 sequentially through a motor gear 35, an idler gear 34 and a screw rod gear 29 from bottom to top, the screw rod 24 is provided with the screw 23, the front side and the rear side of the screw rod 23 are provided with circular screw nut convex blocks, and a circular hole in the inner side of the inclination angle slide block 53 is sleeved on the screw nut convex block. The screw 24 outside the screw gear 29 is provided with a shaft end gasket 36, and the output shaft of the motor 21 outside the motor gear 35 is provided with the shaft end gasket 36.

Wherein, two insides about slider base plate 15 bottom opening all install direction bar copper 16, and direction bar copper 16 passes through bar copper lock solid screw 17 to be installed at the bottom opening of slider base plate 15, and direction bar copper 16 is the cylinder structure, and both sides all are provided with the arc depressed part around inclination slider 53, and the arc depressed part is connected with the cylinder external diameter of direction bar copper 16, and the arc depressed part can reciprocate for the cylinder external diameter of direction bar copper 16.

Bearing mechanism on the screw transmission unit 3: a front bearing pressing block 26 is arranged on a front mounting base plate 19 on the inner side of a screw rod gear 29, a thrust bearing fixing sleeve 25 is arranged on the inner side of the front mounting base plate 19, a screw rod 24 is installed in the thrust bearing fixing sleeve 25 through a front thrust bearing 40, the screw rod 24 is installed in the front bearing pressing block 26 through a front deep groove ball bearing 39, a thrust bearing adjusting sleeve 27 is installed on a rear mounting base plate 22 on the left side of the screw rod 24, a rear bearing pressing block 28 is installed on the left side of the rear mounting base plate 22, the screw rod 24 is installed in the thrust bearing adjusting sleeve 27 through a rear thrust bearing 41, the screw rod 24 is installed in the rear bearing pressing block 28 through a rear deep groove ball bearing 42, an idler gear 34 is installed between an idler tensioning block 31 and a motor mounting plate 20 through an idler shaft 32, the idler tensioning block 31 is installed on the motor mounting plate 20 through a tensioning block 30, and the idler shaft 32 is connected with the idler gear 34 through a flange bearing 43. The left side and the right side of the idler shaft 32 are respectively arranged in the grooves of the idler tensioning block 31 and the motor mounting plate 20, and the idler shaft 32 is fixed in the grooves of the idler tensioning block 31 or the motor mounting plate 20 through idler shaft compression screws 33.

In addition, the thrust bearing adjusting sleeve 27 can adjust the movement clearance of the thrust bearing adjusting sleeve 27 along the left and right directions through a plurality of adjusting sleeve adjusting screws 38, and the set screws 37 tightly push the adjusting screws 38 to prevent the adjusting screws from loosening, thereby fastening the thrust bearing adjusting sleeve 27. Each adjusting screw 38 is tightly pressed and prevented from loosening by a set screw 37, and the thrust bearing adjusting sleeve 27 is ensured to be reliably fastened.

The inclination angle detection unit 4 comprises a rotor mounting plate 44, a rotor 45, a stator 46 and a stator mounting plate 48, wherein the stator 46 is mounted at the front end of the front spindle 9 through the stator mounting plate 48, the rotor 45 is positioned outside the stator 46, the rotor 45 is mounted on the rotor mounting plate 44, the rotor mounting plate 44 is mounted on the front rotary vertical plate 10 through a plurality of rotor mounting rods 47, and the rotor 45, the stator 46 and the front spindle 9 are coaxial. An adjusting ring 50 and a wear-resistant thrust washer 51 are sequentially mounted on the front mandrel 9 on the rear side of the stator mounting plate 48 from front to back, the adjusting ring 50 is mounted on the front mandrel 9 through a locking nut 49 and a stop washer, the adjusting ring 50 is connected with the wear-resistant thrust washer 51 at the rear end through a plurality of adjusting screw-nut mechanisms along the circumferential direction, and the wear-resistant thrust washer 51 is attached to a friction plate 52, the rear end of which is mounted on the front rotating vertical plate 10. A plurality of compression springs are uniformly arranged between the adjusting ring 50 and the wear-resistant thrust washer 51 along the circumferential direction, and the wear-resistant thrust washer 51 is attached to the friction plate 52 by the elasticity of the compression springs.

The adjusting screw and nut mechanism comprises an adjusting screw, an adjusting nut and a countersunk screw, wherein the adjusting screw is arranged on the adjusting ring 50 and penetrates through the front end and the rear end of the adjusting ring 50, the adjusting screw is arranged at the front end and the rear end of the adjusting ring 50 through the two adjusting nuts, each adjusting screw is provided with two adjusting nuts and is respectively clamped at the two sides of the adjusting ring 50, the rear end of the adjusting screw is provided with an adjusting screw hole, the front end of the countersunk screw is connected with the adjusting screw hole, the wear-resistant thrust washer 51 is provided with a countersunk hole, and the rear end of the countersunk screw is arranged in the countersunk hole.

The utility model provides an inclination mechanism about electronic operation table, includes that basis fixed unit 1, rotation unit 2, lead screw drive unit 3 and inclination detecting element 4 totally four subassemblies.

The base fixing unit 1 is actually a lifting outer frame of the operating bed, and is formed by splicing four vertical plates (namely a front fixing vertical plate 5, two side fixing vertical plates 6 and a rear fixing vertical plate 7). Preceding fixed riser 5 installation one before dabber 9, back oilless bush 8 of a back of taking the flange is installed to back fixed riser 7, and the bush main part material is the high-force brass, and solid lubricant is all inlayed to its cylinder part and flange face, can provide the lubrication and reduce the friction, and the coaxial of both strictures is as the rotation support of movable part (rotating unit 2 promptly).

The main body of the rotating unit 2 is formed by splicing four vertical plates including a front rotating vertical plate 10, two side rotating vertical plates 12 and a rear rotating vertical plate 13. The front rotary vertical plate 10 is provided with a front oilless bush 11 which is the same as the front rotary vertical plate, and the rear rotary vertical plate 13 is provided with a rear mandrel 14 which is respectively matched with the front mandrel 9 and the rear oilless bush 8 of the base part to form a complete revolute pair. A slide block base plate 15 is arranged at the front lower part of the front rotating vertical plate 10, and a slide block base plate 18 is arranged between the front rotating vertical plate and the slide block base plate. The lower sides of the two slider substrates 15 are open, and a respective one of the tilt sliders 53 is fitted to slide in the opening. The preparation method of the slide block substrate 15 part comprises the following steps: the slider base plate 15 is initially a whole plate, and after the deep hole is machined, a plate is cut along the axis of the deep hole, and the cut plate is machined into the tilt slider 53. When the sliding block is used, a guide copper bar 16 is respectively fixed in the left and right half-side deep holes of the opening below the sliding block substrate 15, and the copper bar is made of wear-resistant tin bronze. The inclination angle slider 53 is in sliding fit with the guiding copper bar 16 (i.e. the arc-shaped concave part and the cylindrical outer diameter of the guiding copper bar 16) through the half-edge holes on the two side edges. Since the half holes of both sides of the reclining slider 53 and the half hole of the open inner side of the slider base plate 15 are initially the same, the guiding effect is very good and the operation is stable without a gap. The circular hole on the inner side of the slider base plate 15 is used as a force application point and has a certain distance relative to the axle center of the rotating shaft of the movable part, namely, the driving force arm.

The screw transmission unit 3 includes a front mounting plate 19, a motor mounting plate 20, a motor 21, a rear mounting plate 22, a nut 23, a screw 24, and the like. The two side fixing vertical plates 6 of the whole assembly basic fixing unit 1 are fixed on the vertical plates through head and tail mounting plates (namely a front mounting bottom plate 19 and a rear mounting bottom plate 22). The head of the trapezoidal screw rod 24 is provided with two steps which are processed with two sections of optical axes. The tail part is only provided with a step, and an optical axis at one end is processed. The optical axis is respectively sleeved with a thrust bearing, and the outer side of the optical axis is sleeved with a deep groove ball bearing. One side of the thrust bearing is tightly attached to the step surface of the optical axis close to the thread, and the other side of the thrust bearing is tightly attached to the corresponding stress plate surface. Both bearings of the head (i.e. the front deep groove ball bearing 39 and the front thrust bearing 40) are fixed and the tail thrust bearing (i.e. the rear thrust bearing 41 and the rear deep groove ball bearing 42) is adjustable axially by means of an adjustment sleeve to eliminate play. The tail optical axis can axially shift in the deep groove ball bearing at the tail part so as to eliminate length errors caused by processing assembly and expansion and contraction. The tail end optical axis of the head of the screw rod is provided with a key groove, a screw rod gear 29 is sleeved, and the screw rod gear 29 is fixed to stop rotating through key connection, namely the screw rod gear and the screw rod gear cannot rotate relatively. The nut 23 is formed by machining a whole block of wear-resistant tin bronze, a trapezoidal thread is formed by a through hole in the middle of a square block, and a small section of optical axis (namely a nut bump) extends from the front and the back of the square block and is inserted into the circular hole in the inner side of the inclined angle slide block 53. The motor 21 is arranged in parallel below the screw rod, a motor gear 35 is sleeved on an output shaft of the motor 21, and an adjustable idle gear 34 is arranged between the motor gear 35 and the screw rod gear 29. A pair of flange bearings 43 are installed inside the idler gear 34, and the idler shaft 32 can move in a predetermined groove to adjust backlash. Three gears are arranged in a finished shape, but three points are close to a straight line, and the three gear teeth are mutually prime to ensure that the abrasion is balanced in use. The screw rod rotationally drives the screw nut to move left and right, and the movable part is driven to integrally rotate through the sliding block base plate 15. The nut cannot be disengaged from the lead screw, and therefore the size of the driving arm changes during rotation, and at this time, the inclination slider 53 slides with respect to the slider base plate 15.

The inclination detecting unit 4 is used for axial clearance of the base fixing unit 1 and the rotating unit 2. The adjusting mechanism is arranged at the front mandrel 9, the axial clearance of the front half revolute pair can be adjusted to be optimal, and the rear half revolute pair is axially floating. An adjusting ring 50 is sleeved and fixed on the front mandrel and is positioned on the outer side of the front rotary vertical plate 10, and the adjusting ring 50 is installed on the front mandrel 9 through a locking nut 49 and a stop washer. Four holes are uniformly distributed on the disc surface of the adjusting ring 50, four adjusting screws penetrate through the holes, the adjusting screws are connected with the wear-resistant thrust washer 51, and the wear-resistant thrust washer 51 is provided with a solid lubricant. Under the action of the elastic force of the compression spring, the wear-resistant thrust washer 51 naturally clings to the friction plate 52, and the friction plate 52 is installed on the front rotating vertical plate 10. And adjusting the front rotary vertical plate 10 to enable the flange end face with the flange oilless bushing to be tightly attached to the step face of the front mandrel 9, fastening an adjusting nut arranged on an adjusting screw and locking the wear-resistant thrust washer 51. The rotating unit 2 eliminates axial play with respect to the basic stationary unit 1. A stator mounting plate 48 is arranged at the tail end of the front mandrel 9, and a stator 46 of the angle detection sensor is fixedly arranged on the stator mounting plate 48. The rotor mounting plate 44 is mounted on the front rotary riser 10 by two rotor mounting rods 47. The rotor 45 of the angle sensor is mounted on the rotor mounting plate 44, and the stator and the rotor are coaxial with the front core shaft. When the rotation unit 2 rotates, the rotor rotates by the same angle with respect to the stator, thereby detecting the angle.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and 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 thus, are not to 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 or to imply that the number of technical features being indicated is significant. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should 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: either mechanically or electrically: the terms may be directly connected or indirectly connected through an intermediate member, or may be a communication between two elements.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A left and right inclination angle mechanism of an electric operating table comprises a base fixing unit (1), a rotating unit (2) and a screw rod transmission unit (3), and is characterized in that the screw rod transmission unit (3) is installed at a position, close to the bottom, of the front end of the base fixing unit (1), the rotating unit (2) is installed on the outer side of the top of the base fixing unit (1), the screw rod transmission unit (3) can drive the rotating unit (2) on the outer side of the upper portion to rotate, and an inclination angle detection unit (4) is further arranged at the front end of the rotating unit (2);

the base fixing unit (1) comprises a front fixing vertical plate (5), two side fixing vertical plates (6) and a rear fixing vertical plate (7) which are spliced together, a front mandrel (9) is installed at a position, close to the top, of the front fixing vertical plate (5), a rear oil-free lining (8) is installed at a position, close to the top, of the rear fixing vertical plate (7), and the front mandrel (9) and the rear oil-free lining (8) are coaxially arranged;

the rotary unit (2) comprises a front rotary vertical plate (10), two side rotary vertical plates (12) and a rear rotary vertical plate (13) which are spliced together, a front oilless bushing (11) is installed at a position, close to the top, of the front rotary vertical plate (10), a rear mandrel (14) is installed at a position, close to the top, of the rear rotary vertical plate (13), the front oilless bushing (11) and the rear mandrel (14) are coaxially arranged, the front mandrel (9) is connected with the front oilless bushing (11), the rear mandrel (14) is connected with the rear oilless bushing (8), two sliding block base plates (15) which are distributed in parallel along the front-rear direction are arranged at the bottom of the front rotary vertical plate (10), an inclined angle sliding block (53) is arranged at an opening at the bottom of each sliding block base plate (15), and a sliding block base plate (18) is arranged between the two sliding block base plates (15);

the screw rod transmission unit (3) comprises a front mounting base plate (19), a motor mounting plate (20), a motor (21), a rear mounting base plate (22), a nut (23) and a screw rod (24), the front mounting base plate (19) is mounted at the bottom position of a side fixing vertical plate (6) on the right side, the rear mounting base plate (22) is mounted at the bottom position of a side fixing vertical plate (6) on the left side, the motor (21) is mounted at the bottom position of the front mounting base plate (19) through the motor mounting plate (20), the screw rod (24) is mounted between the front mounting base plate (19) and the rear mounting base plate (22) along the left and right sides, an output shaft on the right side of the motor (21) sequentially passes through a motor gear (35), an idler gear (34) and a screw rod gear (29) from bottom to top to be connected with the screw rod (24), the nut (23) is mounted on the screw rod (24), circular nut convex blocks are arranged on the front side and the rear side of the screw nut (23), and circular hole convex blocks on the inner side of the inclination angle sliding block (53) are sleeved in the circular hole.

2. The left and right tilt mechanism of electric operating table according to claim 1, wherein the tilt detecting unit (4) comprises a rotor mounting plate (44), a rotor (45), a stator (46) and a stator mounting plate (48), the stator (46) is mounted at the front end of the front spindle (9) through the stator mounting plate (48), the rotor (45) is located at the outer side of the stator (46), the rotor (45) is mounted on the rotor mounting plate (44), the rotor mounting plate (44) is mounted on the front rotating vertical plate (10) through a plurality of rotor mounting rods (47), and the rotor (45), the stator (46) and the front spindle (9) are coaxial.

3. The left and right tilt mechanism of an electric operating table as claimed in claim 2, wherein the front spindle (9) at the rear side of the stator mounting plate (48) is sequentially provided with an adjusting ring (50) and a wear-resistant thrust washer (51) from front to back, the adjusting ring (50) is arranged on the front spindle (9) through a lock nut (49) and a stop washer, the adjusting ring (50) is connected with the wear-resistant thrust washer (51) at the rear end along the circumferential direction through a plurality of adjusting screw nut mechanisms, and the wear-resistant thrust washer (51) is attached to a friction plate (52) at the rear end of which is arranged on the front rotating vertical plate (10).

4. The left and right inclination mechanism of electric operating table according to claim 3, wherein said adjusting screw and nut mechanism comprises an adjusting screw, an adjusting nut and a countersunk screw, said adjusting screw is mounted on the adjusting ring (50) and passes through the front and rear ends of the adjusting ring (50), said adjusting screw is mounted on the front and rear ends of the adjusting ring (50) through two adjusting nuts, each adjusting screw is mounted with two adjusting nuts and respectively clamped on the two sides of the adjusting ring (50), the rear end of said adjusting screw is provided with an adjusting screw hole, the front end of said countersunk screw is connected with the adjusting screw hole, said wear-resistant thrust washer (51) is provided with a countersunk hole, and the rear end of said countersunk screw is mounted in the countersunk hole.

5. The left-right tilt mechanism of electric operating table according to claim 2, wherein a plurality of compression springs are uniformly arranged between the adjusting ring (50) and the wear-resistant thrust washer (51) along the circumferential direction.

6. The left and right tilt mechanism of electric operating table according to claim 1, wherein the left and right inner sides of the bottom opening of the slider base plate (15) are respectively provided with a guiding copper bar (16), the guiding copper bar (16) is installed on the bottom opening of the slider base plate (15) through a copper bar locking screw (17), the guiding copper bar (16) is of a cylindrical structure, the front and rear sides of the tilt slider (53) are respectively provided with an arc-shaped recess, the arc-shaped recess is connected with the cylindrical outer diameter of the guiding copper bar (16), and the arc-shaped recess can move up and down relative to the cylindrical outer diameter of the guiding copper bar (16).

7. The left and right tilt mechanism of electric operating table as claimed in claim 1, wherein a front bearing press block (26) is provided on the front mounting plate (19) inside the screw gear (29), a thrust bearing fixing sleeve (25) is provided on the inside of the front mounting plate (19), the screw (24) is installed in the thrust bearing fixing sleeve (25) through a front thrust bearing (40), the screw (24) is installed in the front bearing press block (26) through a front deep groove ball bearing (39), a thrust bearing adjusting sleeve (27) is installed on the rear mounting plate (22) on the left side of the screw (24), a rear bearing press block (28) is installed on the left side of the rear mounting plate (22), the screw (24) is installed in the thrust bearing adjusting sleeve (27) through a rear thrust bearing (41), the screw (24) is installed in the rear bearing press block (28) through a rear deep groove ball bearing (42), the idler gear (34) is installed between the idler block (31) and the motor mounting plate (20) through an idler shaft bearing (32), the idler block (31) is installed on the idler block (30), and the idler gear (34) is connected with the idler flange (43).

8. The left and right tilt mechanism of claim 7, wherein the left and right sides of the idler shaft (32) are respectively mounted in the grooves of the idler tensioning block (31) and the motor mounting plate (20), and the idler shaft (32) is fixed in the groove of the idler tensioning block (31) or the motor mounting plate (20) by an idler shaft compression screw (33).

9. The left and right tilt mechanism of electric operating table according to claim 7, wherein the thrust bearing adjusting sleeve (27) can adjust the movement clearance of the thrust bearing adjusting sleeve (27) along the left and right directions by a plurality of adjusting sleeve adjusting screws (38), and the set screw (37) pushes against the adjusting screw (38) to prevent it from loosening, thereby fastening the thrust bearing adjusting sleeve (27).

10. The left and right tilt mechanism of electric operating table according to claim 7, wherein the screw (24) outside the screw gear (29) is provided with a shaft end pad (36), and the output shaft of the motor (21) outside the motor gear (35) is provided with a shaft end pad (36).

Images