CN113565861A - Medical joint - Google Patents
Medical joint Download PDFInfo
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- CN113565861A CN113565861A CN202011587557.1A CN202011587557A CN113565861A CN 113565861 A CN113565861 A CN 113565861A CN 202011587557 A CN202011587557 A CN 202011587557A CN 113565861 A CN113565861 A CN 113565861A
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- block
- positioning
- groove
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- wedge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/10—Arrangements for locking
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The application discloses medical joint belongs to the medical instrument field, including base, rotation portion, spacing portion, wedge and auxiliary positioning subassembly, the base is provided with first locating piece, rotation portion rotates with the base to be connected, is provided with the arc draw-in groove in the rotation portion, spacing portion and base sliding connection, spacing portion is provided with the fixture block of joint in the arc draw-in groove and is used for installing the constant head tank of wedge, form the butt with first locating piece behind the constant head tank is gone into to the wedge card. The medical joint disclosed by the invention can realize linear change of the angle between the rotating part and the base, meanwhile, the rotating part and the base can be fixed at any angle within an adjusting range by matching the wedge block, the positioning groove and the first positioning block, and the medical joint is stable and firm after being fixed, and the angle can not be changed even after being used for a long time, so that a patient can be treated better.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a medical joint.
Background
Two kinds of circumstances can appear usually when carrying out angle adjustment in current joint, firstly the angle can carry out the structure of linear adjustment, but this kind of structure adopts the friction to fix usually, and this kind of fixed mode is not firm, uses after a period, and its angle changes very easily, and another kind is the structure that adopts ratchet, adopts the fixed firm of this kind of connected mode, but the linear adjustment of angle can't be accomplished to this kind of structure, usually needs to be adapted to machinery by the people, uses to experience relatively poor.
Disclosure of Invention
The invention aims to solve the technical problem of disclosing a medical joint so as to improve the problem.
The technical scheme adopted by the invention for solving the technical problems is as follows:
based on the above object, the present invention discloses a medical joint, comprising:
the device comprises a base, a first positioning block and a second positioning block, wherein the base is provided with the first positioning block;
the rotating part is rotatably connected with the base and is provided with an arc-shaped clamping groove;
the limiting part is connected with the base in a sliding mode, a sliding path of the limiting part passes through a rotating center of the rotating part, a positioning groove and a clamping block are arranged on the limiting part, the positioning groove extends along the sliding direction of the limiting part, the first positioning block is located in the range of the positioning groove, the first positioning block and end walls of two ends of the positioning groove are arranged at intervals, the clamping block is clamped in the arc-shaped clamping groove and can move along the arc-shaped clamping groove, and the rotating part rotates to enable the limiting part to slide along the base;
the two wedge-shaped blocks are clamped in the positioning groove and are respectively positioned on two sides of the first positioning block; and
the auxiliary positioning assembly comprises a friction block, a first elastic piece and a bolt, the friction block is connected with the base in a sliding mode, one end of the friction block is abutted to the rotating portion, the bolt is connected with the base in a threaded mode, the bolt is located on one side, deviating from the rotating portion, of the friction block, the first elastic piece is located between the friction block and the bolt, and the first elastic piece enables the friction block to have a tendency of deviating from the bolt to move.
In some embodiments of this embodiment: the base comprises a first side plate, a second side plate and a bottom plate;
the first side plate comprises a first shaft hole, a first chute and an opening, the extending direction of the first chute passes through the first shaft hole, the opening is communicated with the first chute, the opening is positioned at one side end of the first chute, which is far away from the first shaft hole, the first chute and the opening both extend to the end surface of the first side plate, the first positioning block is connected with the first side plate, the first positioning block is positioned on the extending line of the first chute, and the first positioning block is positioned at one side of the chute, which is far away from the first shaft hole;
the second side plate comprises a second shaft hole and a second sliding groove, the second shaft hole and the first shaft hole are coaxially arranged, the extending direction of the second sliding groove passes through the second shaft hole, the second sliding groove extends to the end face of the second side plate, and the second sliding groove and the first sliding groove are oppositely arranged;
the bottom plate is positioned between the first side plate and the second side plate, a mounting hole is formed in the bottom plate, and the extending direction of the mounting hole passes through the second shaft hole;
the rotation part is located first curb plate with between the second curb plate, the both ends card respectively of the pivot of rotation portion are gone into first shaft hole with in the second shaft hole, spacing portion joint in first spout with in the second spout, auxiliary positioning subassembly is located in the mounting hole.
In some embodiments of this embodiment: the limiting part comprises a connecting plate and two limiting plates, the connecting plate is positioned between the two limiting plates, the positioning grooves are formed in the two limiting plates, the two positioning grooves are arranged oppositely, the cross section of the fixture block is circular, the fixture block is arranged between the two limiting plates, and the fixture block and the limiting plates are respectively positioned on two sides of the positioning groove;
the arc draw-in groove runs through the portion of rotating, it is located between two limiting plates to rotate the portion, just the fixture block joint in the arc draw-in groove.
In some embodiments of this embodiment: be provided with the arch on the first locating piece, protruding towards second curb plate protrusion first locating piece show, the arch extends to in the constant head tank, just bellied both ends with the equal interval in both ends of constant head tank sets up.
In some embodiments of this embodiment: the cross section of the wedge block is in a right triangle shape, the right-angle side of the wedge block is abutted to the protrusion, and the oblique side of the wedge block is abutted to the limiting portion.
In some embodiments of this embodiment: one end of the opening facing the first shaft hole is provided with an inclined surface, and the length of the opening is gradually reduced along the direction facing the second side plate through the inclined surface.
In some embodiments of this embodiment: the end wall of the positioning groove is obliquely arranged, and the end wall of the positioning groove is parallel to the inclined plane of the opening.
In some embodiments of this embodiment: the medical joint further comprises a fastening assembly, the fastening assembly comprises a second elastic part, two racks and two gears, the two gears are mounted on the first positioning block, the wedge block is provided with teeth used for being matched with the gears, the two gears are meshed with the two wedge blocks in a one-to-one corresponding mode, the racks are connected with the first positioning block in a sliding mode, one end of each rack is clamped into the arc groove, the racks are meshed with the gears, the racks are located on one side, away from the wedge blocks, of the gears, and the second elastic part is located in the arc groove, and two ends of the second elastic piece are respectively connected with the two racks, and the elastic piece enables the racks to have the tendency of moving towards the direction far away from the second positioning block.
In some embodiments of this embodiment: one side of the friction block facing the rotating part is an arc surface.
In some embodiments of this embodiment: the length of the positioning groove is greater than the sum of the length of the first positioning block and the stroke length of the limiting part.
Compared with the prior art, the invention has the following beneficial effects:
the medical joint disclosed by the invention can realize linear change of the angle between the rotating part and the base, meanwhile, the rotating part and the base can be fixed at any angle within an adjusting range by matching the wedge block, the positioning groove and the first positioning block, and the medical joint is stable and firm after being fixed, and the angle can not be changed even after being used for a long time, so that a patient can be treated better.
Through the removal of bolt, can change the frictional force between clutch blocks and the rotation portion, when the frictional force between clutch blocks and the rotation portion is great, can form preliminary fixed to the rotation portion, install the wedge piece again this moment and can avoid the rotation portion skew, when frictional force between clutch blocks and the rotation portion is less, the rotation portion can rotate at will, and utilize the friction block to form the effect of similar attenuator to the frictional force of rotation portion, reduce the influence of the gravity of rotation portion itself to its position, after the rotation portion is rotated to certain position, the frictional force of friction block to the rotation portion can make the rotation portion can not take place the change of position immediately under the effect of its own gravity promptly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required 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 application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 illustrates a schematic view of a medical joint disclosed in an embodiment of the present invention;
FIG. 2 illustrates a side cross-sectional view of a medical joint disclosed in an embodiment of the present invention in a first state;
FIG. 3 illustrates a side cross-sectional view of a medical joint in a second state as disclosed in an embodiment of the present invention;
FIG. 4 illustrates a side cross-sectional view of a base disclosed in an embodiment of the present invention;
FIG. 5 is a schematic view of a base disclosed in an embodiment of the present invention in a first viewing angle;
FIG. 6 illustrates a cross-sectional view of a base disclosed in an embodiment of the present invention at a first perspective;
FIG. 7 is a schematic view of a base shown in a second perspective in accordance with an embodiment of the present disclosure;
FIG. 8 is a cross-sectional view of a base shown from a second perspective in accordance with an embodiment of the present invention
FIG. 9 is a schematic view of a rotating portion disclosed in an embodiment of the present invention;
FIG. 10 is a schematic view of a spacing portion disclosed in an embodiment of the present invention;
FIG. 11 illustrates a cross-sectional view of a stop disclosed in an embodiment of the present invention;
FIG. 12 illustrates a side cross-sectional view of a stop disclosed in accordance with an embodiment of the invention;
FIG. 13 is a schematic view of an auxiliary positioning assembly disclosed in an embodiment of the present invention;
FIG. 14 shows a schematic view of a fastener assembly disclosed in an embodiment of the present invention.
In the figure:
100-a base; 110-a first positioning block; 120-projection; 121-gear groove; 122-a strip groove; 130-a second locating block; 131-an arc-shaped groove; 140-an opening; 141-a bevel; 150-a first side panel; 151-first shaft hole; 152-a first runner; 160-a base plate; 161-mounting holes; 170-a second side plate; 171-second shaft hole; 172-a second runner;
200-a rotating part; 210-an arc-shaped clamping groove;
300-a limiting part; 310-a connecting plate; 320-limiting plate; 321-a positioning groove; 322-end wall; 330-a fixture block;
400-an auxiliary positioning assembly; 410-bolt; 420-a first resilient member; 430-a friction block;
500-wedge block;
600-a fastening assembly; 610-a gear; 620-rack; 630-a second elastic member.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as disclosed in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1 to 14, an embodiment of the invention discloses a medical joint, which includes a base 100, a rotating portion 200, a limiting portion 300, a wedge block 500 and an auxiliary positioning assembly 400.
The base 100 is provided with a first positioning block 110, the first positioning block 110 is located on the extending surface of the base 100, and the first positioning block 110 and the base 100 can be connected through a connecting part, so that a gap through which the wedge-shaped block 500 can pass is formed between the first positioning block 110 and the base 100;
the rotating part 200 is rotatably connected with the base 100, an arc-shaped clamping groove 210 is arranged on the rotating part 200, the arc-shaped clamping groove 210 extends along an arc line, and the circle center corresponding to the arc-shaped clamping groove 210 is not overlapped with the rotating center of the rotating part 200, so that one end of the arc-shaped clamping groove 210 is close to the rotating center of the rotating part 200, and the other end of the arc-shaped clamping groove is far away from the rotating center of the rotating part 200;
the limiting part 300 is in sliding connection with the base 100, the limiting part 300 can reciprocate on the base 100 along a straight line, the moving path of the limiting part 300 passes through the rotating center of the rotating part 200, a clamping block 330 and a positioning groove 321 are arranged on the limiting part 300, the cross section of the clamping block 330 can be circular, the clamping block 330 is clamped in the arc-shaped clamping groove 210, the clamping block 330 can move relative to the rotating part 200 along the arc-shaped clamping groove 210, when the rotating part 200 rotates, the clamping block 330 is naturally driven to approach or move away from the rotating center of the rotating part 200, so that the limiting block moves on the base 100, and the moving distance of the clamping block 330 from one end of the arc-shaped clamping groove 210 to the limiting block at the other end of the arc-shaped clamping groove 210 is the stroke of the limiting block; the positioning groove 321 extends along the sliding direction of the limiting part 300, the first positioning block 110 is located in the range of the positioning groove 321, and the first positioning block 110 and two ends of the positioning groove 321 are always arranged at intervals in the stroke of the limiting part 300, when the rotating part 200 stops rotating, the two wedge-shaped blocks 500 can be respectively clamped into two sides of the first positioning block 110, one end of each wedge-shaped block 500 abuts against the first positioning block 110, the other end of each wedge-shaped block 500 abuts against the end wall 322 of the positioning groove 321, when the two wedge-shaped blocks 500 are installed and fixed, the position of the limiting part 300 is fixed, and correspondingly, the rotating part 200 is also fixed;
the auxiliary positioning assembly 400 comprises a friction block 430, a first elastic member 420 and a bolt 410, the friction block 430 is slidably connected with the base 100, one end of the friction block 430 abuts against the rotating portion 200, the bolt 410 is in threaded connection with the base 100, the bolt 410 is located on one side, away from the rotating portion 200, of the friction block 430, the first elastic member 420 is located between the friction block 430 and the bolt 410, the first elastic member 420 enables the friction block 430 to have a tendency of moving away from the bolt 410, when the rotating portion 200 rotates to a specified angle, the bolt 410 is screwed to increase friction force between the friction block 430 and the rotating portion 200, primary fixing of the rotating portion 200 is formed, the wedge block 500 is conveniently installed subsequently, and displacement of the limiting portion 300 is avoided when the wedge block 500 is installed.
The medical joint disclosed in this embodiment can realize the linear change of the angle between the rotating part 200 and the base 100, and meanwhile, the wedge 500, the positioning groove 321 and the first positioning block 110 are matched to fix the rotating part 200 and the base 100 at any angle within the adjustment range, and the angle is stable and firm after the fixation, and even after the medical joint is used for a long time, the angle is still not changed, so that the patient can be treated better.
By the movement of the bolt 410, the frictional force between the friction block 430 and the rotation part 200 can be changed, in order to enhance the contact stability between the friction pad 430 and the rotation part 200, the side of the friction pad 430 facing the rotation may be provided with a cambered surface, the arc surface is completely engaged with the outer wall of the rotating part 200, and when the friction force between the friction block 430 and the rotating part 200 is large, the preliminary fixing of the rotating part 200 can be formed, and the wedge block 500 is installed again to prevent the rotating part 200 from being deviated, when the frictional force between the friction block 430 and the rotation part 200 is small, the rotation part 200 can be rotated at will, and the friction force of the friction block 430 to the rotation part 200 may form a damper-like effect, reduce the influence of the gravity of the rotation part 200 itself on its position, that is, when the rotating part 200 is rotated to a certain position, the friction force of the friction block 430 to the rotating part 200 will prevent the rotating part 200 from being immediately changed in position under the action of its own weight.
Wherein, can also make the length of first locating piece 110 and the stroke length sum of spacing portion 300 be less than the length of constant head tank 321 to guarantee when spacing portion 300 removes extreme position, set up for the interval all the time between the both ends of first locating piece 110 and two terminal surfaces of constant head tank 321, thereby conveniently install wedge 500.
In some embodiments of the present embodiment, the base 100 comprises a first side panel 150, a second side panel 170, and a bottom panel 160;
the first side plate 150 comprises a first shaft hole 151, a first chute 152 and an opening 140, the extending direction of the first chute 152 passes through the first shaft hole 151, the opening 140 is communicated with the first chute 152, the opening 140 is positioned at one end of the first chute 152, which is far away from the first shaft hole 151, the first chute 152 and the opening 140 both extend to the end surface of the first side plate 150, the first positioning block 110 is connected with the first side plate 150, the first positioning block 110 is positioned on the extending line of the first chute 152, and the first positioning block 110 is positioned at one side of the chute, which is far away from the first shaft hole 151;
the second side plate 170 includes a second shaft hole 171 and a second sliding chute 172, the second shaft hole 171 is coaxially disposed with the first shaft hole 151, the second sliding chute 172 extends in the direction of the second shaft hole 171, the second sliding chute 172 extends to the end surface of the second side plate 170, and the second sliding chute 172 is disposed opposite to the first sliding chute 152;
the bottom plate 160 is located between the first side plate 150 and the second side plate 170, the bottom plate 160 is provided with a mounting hole 161, and the extending direction of the mounting hole 161 passes through the second shaft hole 171;
The limiting part 300 comprises a connecting plate 310 and two limiting plates 320, the connecting plate 310 is located between the two limiting plates 320, the two limiting plates 320 are both provided with positioning grooves 321, the two positioning grooves 321 are oppositely arranged, the cross section of the fixture block 330 is circular, the fixture block 330 is installed between the two limiting plates 320, and the fixture block 330 and the limiting plates 320 are respectively located at two sides of the positioning grooves 321;
the arc-shaped slot 210 penetrates through the rotating portion 200, the rotating portion 200 is located between the two limiting plates 320, and the latch 330 is clamped in the arc-shaped slot 210.
Two limiting plates 320 correspond respectively and block in first spout 152 and second spout 172, and limiting plate 320 can slide in first spout 152 and second spout 172, and limiting plate 320's thickness can be unanimous with the sunken degree of depth of first spout 152 and second spout 172 or be less than the sunken degree of depth of first spout 152 and second spout 172 slightly, in order to avoid causing the influence to the rotation of rotating part 200, first spout 152 and second spout 172 can also restrict the moving direction of spacing portion 300 when being used for holding limiting plate 320.
In addition, a second positioning block 130 can be further disposed on the base 100, the second positioning block 130 is located on the second side plate 170, the second positioning block 130 is disposed opposite to the first positioning block 110, an arc-shaped groove 131 is disposed on the second positioning block 130, two ends of the arc-shaped groove 131 respectively extend to an end surface of one side of the second positioning block 130 facing the first positioning block 110, the medical joint further includes a fastening assembly 600, the fastening assembly 600 includes a second elastic member 630, two racks 620 and two gears 620, the two gears 620 are both mounted on the first positioning block 110, the wedge 500 is provided with teeth for matching with the gears 620, the two gears 620 are correspondingly engaged with the two wedge 500 one by one, the racks 620 are slidably connected with the first positioning block 110, one end of the racks 620 is clamped into the arc-shaped groove 131, the racks 620 are engaged with the gears 620, the racks 620 are located on a side of the gears 620 away from the wedge 500, the second elastic member 630 are located in the arc-shaped groove 131, and two ends of the second elastic member 630 are respectively connected to the two racks 620, and the elastic member makes the racks 620 have a tendency to move away from the second positioning block 130.
When the gear 620 rotates, the wedge block 500 and the rack 620 can be driven to move, the moving directions of the rack 620 and the wedge block 500 are opposite, when the angle of the rotating part 200 needs to be adjusted, the two racks 620 are pressed simultaneously, the rack 620 moves towards the second positioning block 130, the wedge block 500 moves towards the direction departing from the second positioning block 130 at the moment, after the rotating part 200 is rotated to a specified position, the rack 620 is loosened, at the moment, the two racks 620 move towards the direction far away from the second positioning block 130 under the action of the second elastic piece 630, the wedge block 500 is driven to move towards the second positioning block 130 for a certain time, and then the wedge block 500 can clamp the limiting part 300 again.
Wherein, the second elastic member 630 can be set up to be the spring of compression state, because the both ends of second elastic member 630 are connected with two racks 620 respectively, consequently, the elasticity that two racks 620 received is unanimous, and then, the power that transmits wedge 500 by rack 620 is also unanimous, and the pressure that two wedge 500 received is unanimous, can form firm spacing to form fixedly to spacing portion 300.
In this embodiment, the protrusion 120 may be disposed on the first positioning block 110, the protrusion 120 protrudes the first positioning block 110 toward the second side plate 170, the protrusion 120 extends into the positioning groove 321, and the height of the protrusion 120 may be equal to the height of the first positioning block 110, so that the two ends of the protrusion 120 and the two ends of the positioning groove 321 are both disposed at an interval, which is convenient for installing the wedge block 500.
After setting up arch 120, arch 120 sets up with the end wall 322 of constant head tank 321 relatively, and after installation wedge 500, two relative lateral walls of wedge 500 can butt respectively on arch 120 and the end wall 322 of constant head tank 321, just so make the clamping force direction that limiting plate 320 formed wedge 500 unanimous with spacing portion 300's moving direction, can avoid wedge 500 to take place the slope, and then avoid wedge 500 to loosen spacing portion 300's clamping force.
Further, can also set up two end walls 322 slope of constant head tank 321, the inclination of this end wall 322 equals with wedge 500's contained angle, go into the constant head tank 321 back with wedge 500 card, the right-angle side of wedge 500 is attached on arch 120 and first locating piece 110, and the hypotenuse of wedge 500 can be attached on end wall 322 of constant head tank 321, can further promote the stability that wedge 500 installed.
In this embodiment, the cross section of the wedge block 500 may be a right triangle, the right-angle side of the wedge block 500 abuts against the protrusion 120, and the oblique side of the wedge block 500 abuts against the limiting portion 300.
Be provided with the gear groove 121 that is used for installing gear 620 and the bar groove 122 that is used for installing rack 620 on protruding 120, bar groove 122 runs through protruding 120 and the two pieces of first location along the direction of the connecting wire of first locating piece 110 with second locating piece 130, one side and the bar groove 122 intercommunication of gear groove 121, the surface of protruding 120 is run through to one side that gear groove 121 deviates from bar groove 122 to gear 620 and wedge 500 in gear groove 121 mesh.
When the limiting portion 300 moves to the maximum position towards the rotating portion 200, in the process of installing the wedge block 500, since the wedge block 500 has a bevel edge, the side of the wedge block 500 facing the rotating portion 200 needs to occupy more space, the arrangement of the opening 140 on the first side plate 150 can make the installation of the wedge block 500 more convenient, further, one end of the opening 140 facing the first shaft hole 151 can be arranged to be the bevel 141, the bevel 141 makes the length of the opening 140 gradually decrease along the direction facing the second side plate 170, the bevel 141 can be parallel to the end wall 322 of the positioning groove 321, and when the limiting portion 300 moves to the maximum position towards the rotating portion 200, the bevel 141 and the end wall 322 of the positioning groove 321 are coplanar, and the bevel edge of the wedge block 500 is formed to be attached to the support together.
The arc-shaped slot 210 may be configured to limit a rotation angle of the rotation portion 200, an angle of a central angle corresponding to the arc-shaped slot 210 is a rotatable angle range of the rotation portion 200, and in this embodiment, the central angle corresponding to the arc-shaped slot 210 may be set to 90 degrees.
The medical joint disclosed in this embodiment is used as follows:
firstly, adjusting the relative angle between the rotating part 200 and the base 100, when the rotating part 200 is controlled to rotate, the limiting part 300 slides along the base 100, so that the lengths of the positioning grooves 321 on the two sides of the first positioning block 110 are changed, when the relative angle between the rotating part 200 and the base 100 is determined, the bolt 410 is screwed in the forward direction, the bolt 410 approaches towards the rotating part 200 at the moment, so that the pressure between the friction block 430 and the rotating part 200 is increased, further the friction force of the friction block 430 on the rotating part 200 is increased, at the moment, the rotating part 200 is primarily fixed, then the two wedge blocks 500 are respectively placed into the positioning grooves 321, after the position of the wedge block 500 is determined, the wedge block 500 is clamped, and the relative fixation between the rotating part 200 and the base 100 is completed;
if the angle between the rotating part 200 and the base 100 needs to be adjusted, the wedge block 500 is taken out first, then the bolt 410 is turned reversely, and after the pressure of the friction block 430 on the rotating part 200 is reduced, the rotating part 200 can be rotated relative to the base 100 again.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A medical joint, comprising:
the device comprises a base, a first positioning block and a second positioning block, wherein the base is provided with the first positioning block;
the rotating part is rotatably connected with the base and is provided with an arc-shaped clamping groove;
the limiting part is connected with the base in a sliding mode, a sliding path of the limiting part passes through a rotating center of the rotating part, a positioning groove and a clamping block are arranged on the limiting part, the positioning groove extends along the sliding direction of the limiting part, the first positioning block is located in the range of the positioning groove, the first positioning block and end walls of two ends of the positioning groove are arranged at intervals, the clamping block is clamped in the arc-shaped clamping groove and can move along the arc-shaped clamping groove, and the rotating part rotates to enable the limiting part to slide along the base;
the two wedge-shaped blocks are clamped in the positioning groove and are respectively positioned on two sides of the first positioning block; and
the auxiliary positioning assembly comprises a friction block, a first elastic piece and a bolt, the friction block is connected with the base in a sliding mode, one end of the friction block is abutted to the rotating portion, the bolt is connected with the base in a threaded mode, the bolt is located on one side, deviating from the rotating portion, of the friction block, the first elastic piece is located between the friction block and the bolt, and the first elastic piece enables the friction block to have a tendency of deviating from the bolt to move.
2. The medical joint of claim 1, wherein the base comprises a first side plate, a second side plate, and a bottom plate;
the first side plate comprises a first shaft hole, a first chute and an opening, the extending direction of the first chute passes through the first shaft hole, the opening is communicated with the first chute, the opening is positioned at one end of the first chute, which is deviated from the first shaft hole, the first chute and the opening both extend to the end surface of the first side plate, the first positioning block is connected with the first side plate, the first positioning block is positioned on the extending line of the first chute, and the first positioning block is positioned at one side of the chute, which is deviated from the first shaft hole;
the second side plate comprises a second shaft hole and a second sliding groove, the second shaft hole and the first shaft hole are coaxially arranged, the extending direction of the second sliding groove passes through the second shaft hole, the second sliding groove extends to the end face of the second side plate, and the second sliding groove and the first sliding groove are oppositely arranged;
the bottom plate is positioned between the first side plate and the second side plate, a mounting hole is formed in the bottom plate, and the extending direction of the mounting hole passes through the second shaft hole;
the rotation part is located first curb plate with between the second curb plate, the both ends card respectively of the pivot of rotation portion are gone into first shaft hole with in the second shaft hole, spacing portion joint in first spout with in the second spout, auxiliary positioning subassembly is located in the mounting hole.
3. The medical joint according to claim 2, wherein the limiting portion comprises a connecting plate and two limiting plates, the connecting plate is located between the two limiting plates, the positioning grooves are formed in both the two limiting plates, the two positioning grooves are oppositely arranged, the cross section of the fixture block is circular, the fixture block is mounted between the two limiting plates, and the fixture block and the limiting plates are located on two sides of the positioning groove respectively;
the arc draw-in groove runs through the portion of rotating, it is located between two limiting plates to rotate the portion, just the fixture block joint in the arc draw-in groove.
4. The medical joint according to claim 3, wherein the first positioning block is provided with a protrusion protruding from the surface of the first positioning block toward the second side plate, the protrusion extends into the positioning groove, and two ends of the protrusion and two ends of the positioning groove are spaced from each other.
5. The medical joint according to claim 4, wherein the cross section of the wedge-shaped block is a right triangle, the right-angle side of the wedge-shaped block abuts against the protrusion, and the oblique side of the wedge-shaped block abuts against the limiting portion.
6. The medical joint according to claim 2, wherein an end of the opening facing the first shaft hole is provided with a slope, and the slope gradually reduces a length of the opening in a direction facing the second side plate.
7. The medical joint according to claim 6, wherein an end wall of the positioning groove is disposed obliquely, and the end wall of the positioning groove is disposed in parallel with the slope of the opening.
8. The medical joint according to claim 2, wherein a second positioning block is further arranged on the base, the second positioning block is arranged opposite to the first positioning block, an arc-shaped groove is arranged on the second positioning block, two ends of the arc-shaped groove respectively extend to the end surface of one side, facing the first positioning block, of the second positioning block, the medical joint further comprises a fastening assembly, the fastening assembly comprises a second elastic part, two racks and two gears, the two gears are both arranged on the first positioning block, the wedge-shaped block is provided with teeth used for being matched with the gears, the two gears are meshed with the two wedge-shaped blocks in a one-to-one correspondence manner, the racks are connected with the first positioning block in a sliding manner, one end of each rack is clamped into the arc-shaped groove, the racks are meshed with the gears, and the racks are located on one side, facing away from the wedge-shaped block, of the gears, the second elastic piece is located in the arc-shaped groove, two ends of the second elastic piece are respectively connected with the two racks, and the elastic piece enables the racks to have a tendency of moving towards a direction far away from the second positioning block.
9. The medical joint according to claim 1, wherein a side of the friction block facing the rotating portion is curved.
10. The medical joint according to claim 1, wherein the length of the positioning groove is greater than the sum of the length of the first positioning block and the stroke length of the stopper portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587557.1A CN113565861B (en) | 2020-12-28 | 2020-12-28 | Medical joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587557.1A CN113565861B (en) | 2020-12-28 | 2020-12-28 | Medical joint |
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| Publication Number | Publication Date |
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| CN113565861A true CN113565861A (en) | 2021-10-29 |
| CN113565861B CN113565861B (en) | 2022-03-11 |
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| CN202011587557.1A Active CN113565861B (en) | 2020-12-28 | 2020-12-28 | Medical joint |
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| CN (1) | CN113565861B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113565861B (en) | 2022-03-11 |
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