CN218542910U

CN218542910U - Spacing formula link assembly and medical equipment

Info

Publication number: CN218542910U
Application number: CN202223156392.XU
Authority: CN
Inventors: 刘小燕
Original assignee: Chongqing Yuyi Health Technology Co ltd
Current assignee: Chongqing Yuyi Health Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-02-28
Anticipated expiration: 2032-11-28

Abstract

The utility model relates to a link assembly technical field discloses a spacing formula link assembly and medical equipment, including connecting portion and synchronous first connecting rod and the second connecting rod of rotating connection on connecting portion, be connected with the locating part that is located between first connecting rod and the second connecting rod on the connecting portion, have overlap area between the rotation range of first connecting rod and the rotation range of second connecting rod, the locating part is located the reverse extension line of the angular bisector of two straight flanges of overlap area. The utility model discloses a play spacing effect of blockking through set up the locating part on connecting portion to first connecting rod and second connecting rod, solved the complicated and big problem of processing cost of connecting rod limit structure among the prior art.

Description

Spacing formula link assembly and medical equipment

Technical Field

The utility model relates to a link assembly technical field, concretely relates to spacing formula connecting rod structure and medical equipment.

Background

An adjuster is usually arranged on the medical equipment to adjust the height and the angle of the medical equipment, and a connecting rod assembly is usually adopted in the adjuster to adjust an adjusting object. For example, chinese patent publication No. CN112089987a discloses a hovering arm and a therapeutic apparatus thereof, the hovering arm includes two hovering supports and a hovering mechanism, one ends of the two hovering supports are both rotatably connected to a first moving member, the other ends of the two hovering supports are both rotatably connected to a second moving member, and the two hovering supports are arranged in parallel. In the structure, two connecting rods in each group of hovering supports are synchronously and rotatably connected to corresponding moving parts, so that the two connecting rods in each group of hovering supports, the first moving part and the second moving part form a parallel four-bar mechanism. In the use process, a treatment lamp (equivalent to an adjusting object) in the treatment instrument is connected to the second moving part, the two hovering arms can rotate relative to the first moving part, in the rotating process of the two hovering arms, the height and the angle of the treatment lamp driven by the second moving part can be changed, and then the hovering mechanism is utilized to enable the treatment lamp to hover to finish treatment.

Although the above structure can adjust the height and angle of the adjusting object, in the using process, according to the standard of medical equipment (GB 9706.1-2020), it is required that in the equipment environment, the human body or the human body part can be exposed to the danger (source) accessible area of capture, pressing, shearing, impact, cutting, winding, rolling, puncturing or friction without mechanical danger, specifically, in the present structure, the gap between the two connecting rods during the rotation process is required to be less than 4mm or more than 25mm, so as to satisfy the safe use of the equipment, and for this, the applicant blocks the gap between the two connecting rods by arranging the blocking plates at the two sides of the two connecting rods, thereby preventing the mechanical danger from generating. Although set up behind the baffle and can block the protection to the both sides of connecting rod, at the support rotation in-process that hovers, the baffle of setting forms the contained angle space with first moving part or second moving part easily, along with the rotation of the support that hovers, also presss from both sides easily when the size in contained angle space changes and hinders the user.

Meanwhile, as the adjustment objects such as the therapeutic lamp have a certain requirement on the range of the angle of use, for example, for the above-mentioned therapeutic apparatus, in the process of rotating the two groups of hovering brackets, the rotating range of the hovering bracket close to the first moving part is 0-90 °, when the rotating angle of the hovering bracket is greater than 90 °, the whole center of weight of the other group of hovering bracket and the second moving part connected to the other group of hovering bracket may shift to the rear side of the therapeutic apparatus, and the therapeutic apparatus may tip over to the rear side. In addition, in order to prevent the two groups of hovering supports from approaching each other in the rotating process and clamping a user, limiting members are required to be arranged on the first moving piece and the second moving piece to limit the rotating angle of the connecting rod. In the existing mode, a blocking sheet is generally arranged on a first moving part and/or a second moving part to limit the rotation of a connecting rod, but in the existing limiting structure, a plurality of limiting structures are required to limit two groups of hovering supports, so that the whole limiting structure is complex, the processing cost is high, and the installation is time-consuming and labor-consuming; and the connecting rod can form an included angle space with the blocking piece in the rotating process, so that the risk of clamping a user still exists when the connecting rod rotates.

SUMMERY OF THE UTILITY MODEL

The utility model provides a spacing formula connecting rod structure and medical equipment to solve the complicated and big problem of processing cost of connecting rod limit structure among the prior art.

In order to solve the above problem, the utility model adopts the following technical scheme: a limiting type connecting rod structure comprises a connecting portion, a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are connected to the connecting portion in a synchronous rotating mode, an overlapping area is arranged between the rotating range of the first connecting rod and the rotating range of the second connecting rod, and a limiting piece is located on the connecting portion on a reverse extension line of an angular bisector of two straight edges of the overlapping area.

The principle of the scheme is as follows: in the application, the first connecting rod and the second connecting rod rotate synchronously relative to the connecting part, so that an overlapping area exists in the rotating process of the first connecting rod and the second connecting rod, the overlapping area is a closed area surrounded by two straight sides and a special-shaped curve, the two straight sides are left by rotating paths of the first connecting rod and the second connecting rod respectively, the limiting part is positioned on a reverse extension line of two straight-side angle bisectors, and the limiting part is positioned between the first connecting rod and the second connecting rod.

The beneficial effect of this scheme is:

1. the structure is simple: compare to need many places spacing part among the connecting rod structure among the prior art to carry on spacingly to the turned angle of connecting rod, its structure is complicated. In this application, only set up a locating part on connecting portion, can carry out effective control, simple structure to the rotation range of first connecting rod and second connecting rod.

2. With low costs and simple to operate: compare and need utilize a plurality of spacing separation blades to come spacing to first connecting rod and second connecting rod respectively among the prior art, the processing cost is bigger. Only need set up a locating part in this application, the processing cost is little and easily install.

3. The attractive appearance of the first connecting rod and the second connecting rod is kept: in this application, the locating part is located between first connecting rod and the second connecting rod, therefore first connecting rod and second connecting rod rotate the in-process, and the locating part is located the just right narrow and small space of first connecting rod and second connecting rod with the counterbalance striking trace of first connecting rod and second connecting rod, can not exert an influence to the outside structure of first connecting rod and second connecting rod, is favorable to keeping the holistic pleasing to the eye degree of connecting rod outside structure.

Preferably, as an improvement, the locating part is the spacing post of connecting on connecting portion, and the cross-section of spacing post is circular.

In this scheme, the locating part is the spacing post of columniform, and the simple structure of spacing post, and spacing post is cylindrically, compares in setting the locating part to square post or other shapes, and the processing of the spacing post of columniform is more convenient, the condition of bumping when can also effectively reducing spacing post and first connecting rod and second connecting rod and rotating.

Preferably, as an improvement, the diameter of the limiting column is 2.5-8mm.

In the scheme, the diameter of the limiting column is set to be 2.5-8mm, on one hand, the diameter of the limiting column is large enough, so that the limiting column has enough strength and can bear the impact of the first connecting rod and the second connecting rod in the rotating process, and the phenomenon that the limiting column is deformed when in use due to the fact that the diameter of the limiting column is too small is avoided; on the other hand, avoid spacing post diameter too big and unable normal installation between first connecting rod and second connecting rod, avoid whole connecting rod structure's size too big simultaneously, influence pleasing to the eye etc..

Preferably, as an improvement, the connecting part comprises two connecting plates which are arranged oppositely, and the first connecting rod and the second connecting rod are rotatably connected between the two connecting plates; the two connecting plates enclose an installation space, the limiting part is fixedly connected between the two connecting plates, and the limiting part is located in the installation space.

In the scheme, the two connecting plates which are arranged oppositely form the installation space, and when the first connecting rod, the second connecting rod and the limiting piece are connected into the installation space, the installation space can play a certain protection effect; in addition, because set up the locating part in installation space in this scheme, consequently when first connecting rod and second connecting rod rotate and offset with the locating part, even can appear the contained angle space between locating part and first connecting rod and the second connecting rod, but the contained angle space is located installation space, therefore user's limbs can't stretch into in the installation space and be pressed from both sides the injury, use more safety.

Preferably, as an improvement, first connecting rod and second connecting rod are the square pipe that the cross section is the rectangle, and the both ends of first connecting rod and the both ends of second connecting rod all are equipped with the fillet.

In this scheme, the connecting rod is square pipe, conveniently processes out mounting hole etc. on the connecting rod, reduces the processing cost and installs more portably, and the fillet is seted up at the both ends of connecting rod to its tip can not press from both sides the injury user at the connecting rod rotation in-process.

Preferably, as an improvement, the limiting column is a blind rivet.

In this scheme, utilize the blind rivet to be spacing post, the blind rivet is the standard component, can conveniently choose, and the cost is lower, and the installation of blind rivet simultaneously is very convenient, only needs to drill on two connecting plates, then will blind rivet insert in drilling to rivet can.

Preferably, as an improvement, a hovering unit is arranged between the first connecting rod and the second connecting rod, the hovering unit includes an elastic member and a movable connecting member, the elastic member is located in the first connecting rod or the second connecting rod, one end of the elastic member is connected with the first connecting rod or the second connecting rod, the other end of the elastic member is connected with the movable connecting member, and one end of the movable connecting member, which is far away from the elastic member, is connected with the second connecting rod or the first connecting rod.

In order to enable the first connecting rod and the second connecting rod to rotate to a certain position and then hover, the hovering mechanism is arranged on two sides of the first connecting rod and the second connecting rod, and the hovering mechanism is used for hovering by utilizing friction force inside the hovering mechanism, but in the rotating process of the first connecting rod and the second connecting rod, an included angle space is easily formed between the first connecting rod and the hovering mechanism, and a person is injured by the hovering mechanism.

In the scheme, the elastic part is positioned in the first connecting rod or the second connecting rod, when the elastic part is connected in the first connecting rod, the movable connecting part is connected on the second connecting rod (or the elastic part is connected in the second connecting rod, and at the moment, the movable connection is connected with the first connecting rod), so that in the synchronous rotation process of the first connecting rod and the second connecting rod, one end of the movable connecting part connected with the second connecting rod moves along with the second connecting rod, the movable connecting part can pull the elastic part to extend, the elastic part generates a pulling force effect on the first connecting rod and the second connecting rod, the first connecting rod and the second connecting rod are kept in any position in the rotation range to be suspended and can bear the action of moving gravity, and the first connecting rod and the second connecting rod can bear the weight of an adjusting object in the prior art. Therefore, the elastic piece in the scheme is always arranged in the hovering mechanism, so that the situation that people are injured due to the fact that the first connecting rod and the second connecting rod rotate relative to the hovering mechanism in the prior art is completely avoided.

The medical equipment uses the limit type connecting rod structures, the number of the limit type connecting rod structures is two, two groups of limit type connecting rod structures share one connecting part, one end of one group of limit type connecting rod structures, which is far away from the connecting part, is rotatably connected with a fixed seat, and the other end of the limit type connecting rod structures, which is far away from the connecting part, is rotatably connected with a mounting seat; the mounting seat and/or the fixing seat are/is also provided with a limiting part, and the minimum clearance between the first connecting rod or the second connecting rod in one group of limiting connecting rod structures and the first connecting rod or the second connecting rod in the other group of limiting connecting rod structures is larger than 25mm.

In this scheme, medical equipment includes two sets of spacing formula link structure, utilizes the locating part among the spacing formula link structure to play to stop limiting displacement to first connecting rod and second connecting rod among the spacing formula link structure of every group, and simple structure just can effectively control two sets of spacing formula link structure's rotation range.

Meanwhile, in the scheme, the limiting parts are arranged on the mounting seat and/or the fixing seat, and the limiting parts are utilized to limit the first connecting rod and the second connecting rod in each group of limiting connecting rod structures, so that the limiting of the limiting connecting rod structures is more stable, of course, the limiting parts can be arranged on the fixing seat and the mounting seat, the limiting parts are not arranged on the connecting parts, and the limiting parts can also be arranged on the first connecting rod and the second connecting rod in the two groups of limiting connecting rod structures; meanwhile, the first connecting rod and the second connecting rod are limited by the limiting parts, so that the distance between any two connecting rods in the two groups of limiting connecting rod structures is larger than 25mm, and mechanical danger cannot be caused in the rotating process of the two groups of limiting connecting rod structures. Preferably, as an improvement, the first link in the position-limiting link structure between the fixing base and the connecting portion has a rotation angle ranging from 0 to 90 °.

Because the fixing seat plays a role in fixing and supporting all the limiting connecting rod structures, the fixing seat is connected to a supporting component in the prior art, and an adjusting object in the prior art is connected to the mounting seat, the range of the rotating angle of the first connecting rod in the limiting connecting rod structure connected with the fixing seat in the scheme is 0-90 degrees, the situation that all the limiting connecting rod structures and the adjusting object connected with the fixing seat are overturned due to the fact that the rotating angle of the first connecting rod is larger than 90 degrees is avoided, meanwhile, the situation that when the rotating angle of the first connecting rod is smaller than 0 degree, the rod body part of the first connecting rod rotates to be below the horizontal plane of the rotating connecting point of the rod body part, namely the first connecting rod rotates to be below the horizontal plane, the included angle between the first connecting rod and the second connecting rod in the limiting connecting rod structure and the supporting component in the prior art is easily too small, and the situation that a user is clamped and injured is caused. Therefore, the rotating angle of the first connecting rod in the limiting type connecting rod structure connected with the fixed seat is limited within the range of 0-90 degrees, and the equipment is safer to use.

Drawings

Fig. 1 is a schematic view of a position-limited connecting rod structure according to an embodiment of the present invention.

Fig. 2 is a front view of fig. 1 with the front side connecting plate hidden.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic view of a medical apparatus according to a first embodiment of the present invention.

Fig. 5 is a schematic view of a medical apparatus according to a second embodiment of the present invention.

Fig. 6 is a schematic view of a medical apparatus according to a third embodiment of the present invention.

Fig. 7 is a schematic view of a position-limiting connecting rod structure according to a fourth embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: first connecting rod 1, fillet 101, second connecting rod 2, connecting plate 3, spacing post 4, fixing base 5, mount pad 6, baffle 7, extension spring 8, haulage rope 9, gyro wheel 10.

Example one

The first embodiment is shown in the attached figures 1-4: a limiting type connecting rod structure comprises a connecting part, a first connecting rod 1 and a second connecting rod 2 which are synchronously and rotatably connected to the connecting part, wherein the first connecting rod 1 and the second connecting rod 2 are square pipes with rectangular cross sections; meanwhile, in order to avoid the situation that the ends of the first connecting rod 1 and the second connecting rod 2 scratch people in the rotating process, round corners 101 are arranged at two ends of the first connecting rod 1 and two ends of the second connecting rod 2.

The connecting portion is connected with a limiting part located between the first connecting rod 1 and the second connecting rod 2, and the limiting part can stop and limit the rotation of the first connecting rod 1 and the second connecting rod 2. In this embodiment, referring to fig. 2, the limiting member is a limiting post 4 connected between two connecting plates 3, and the limiting post 4 is located in the installation space, so that when the first connecting rod 1 or the second connecting rod 2 rotates to abut against the limiting post 4, the limb of the user cannot extend into the installation space and is pinched by an included angle space formed by the limiting post 4 and the first connecting rod 1 or the second connecting rod 2, and the use is safer.

In this embodiment, for the manufacturing cost of conveniently controlling spacing post 4, spacing post 4 adopts the rivet nail, and in the actual installation, only need drill the through-hole on two connecting plates 3, then insert the rivet nail in the through-hole and rivet, can make the rivet nail be fixed in between two connecting plates 3 fast, utilizes the rivet nail can realize stopping first connecting rod 1 and second connecting rod 2 spacing.

In this embodiment, when the first connecting rod 1 and the second connecting rod 2 rotate synchronously relative to the connecting plate 3, the rotation ranges of the first connecting rod 1 and the second connecting rod 2 have an overlapping area, which is described with reference to fig. 2 as an area swept by the rotation of the center line of the first connecting rod 1 and the center line of the second connecting rod 2, the overlapping area includes a first straight side n, a second straight side m and a special-shaped side f (shown by a shaded area in fig. 2), wherein the first straight side n is one of positions of the area swept by the center line of the first connecting rod 1, the second straight side m is one of positions of the area swept by the center line of the second connecting rod 2, the blind rivet is located on an opposite extension line h of an angular bisector of the first straight side n and the second straight side m, and under the limiting effect of the blind rivet, the rotation range of the first connecting rod 1 relative to the connecting plate 3 is located between a first limit position and a second limit position, that is when the first connecting rod 1 rotates to the first limit position, the side wall of the blind rivet is abutted against the side wall of the first connecting rod 1 (that is the first connecting rod 1 cannot rotate counterclockwise in the direction in fig. 1; when the first connecting rod 1 rotates clockwise to the second limit position (shown by the dotted line in fig. 2), the side wall of the rivet abuts against the second connecting rod 2, so that the second connecting rod 2 cannot rotate clockwise continuously, and because the first connecting rod 1 and the second connecting rod 2 rotate synchronously, the first connecting rod 1 cannot rotate clockwise continuously.

It can be seen from fig. 2 and 3 that, the outer wall of the limiting column 4 is tangent to the side wall of the first connecting rod 1 at the first limit position and the side wall of the second connecting rod 2 at the second limit position, so that the limiting column 4 can abut against the first connecting rod 1 when the first connecting rod 1 rotates to the first limit position, and the limiting column 4 can abut against the second connecting rod 2 when the first connecting rod 1 rotates to the second limit position, and when the first connecting rod 1 normally rotates within the range of the first limit position and the second limit position, the limiting column 4 cannot block the rotation of the first connecting rod 1 and the second connecting rod 2, so that the connecting rod structure can normally operate. Therefore, the diameters of the limiting posts 4 represented by the dotted line circle a and the solid line circle b in fig. 4 can achieve the above functions, and other situations that can meet the use requirements are not listed one by one, in this embodiment, in combination with the size of the first connecting rod 1 and the second connecting rod 2 and the size of the practical use size, the diameter range of the limiting post 4 is 2.5-8mm, and 3mm (i.e., the limiting post 4 represented by the solid line circle b in fig. 3) is preferably selected, so that the diameter of the limiting post 4 is large enough to have large strength, and meanwhile, the situation that the diameter of the limiting post 4 is too large to affect the normal rotation of the first connecting rod 1 and the second connecting rod 2 can be avoided.

The utility model provides a medical equipment, use foretell spacing formula link structure, and spacing formula link structure's quantity is two sets of, two sets of spacing formula link structure share same connecting portion, for convenient the differentiation, two sets of spacing formula link structure are left linkage and right linkage respectively, connecting portion are located between left linkage and the right linkage, and first connecting rod 1 and second connecting rod 2 in the left linkage all are in vertical state, first connecting rod 1 and second connecting rod 2 in the right linkage are in the horizontality, the bottom of left linkage is equipped with fixing base 5, the right-hand member of right linkage is equipped with mount pad 6, connecting portion in the left linkage, first connecting rod 1, second connecting rod 2 and fixing base 5 form parallel four-bar linkage, make first connecting rod 1 and second connecting rod 2 keep in step at the rotation in-process, parallel four-bar linkage also can be constituteed to the right linkage, no longer describe here.

As shown in fig. 4, the top end of the first connecting rod 1 and the top end of the second connecting rod 2 in the left connecting rod group are both rotatably connected between the two mounting plates, and the bottom end of the first connecting rod 1 and the bottom end of the second connecting rod 2 in the left connecting rod group are both rotatably connected to the fixing base 5; the left end of first connecting rod 1 and the left end of second connecting rod 2 in the right side linkage all rotate to be connected between two mounting panels, the right-hand member of first connecting rod 1 and the right-hand member of second connecting rod 2 in the right side linkage all rotate to be connected on mount pad 6, fixing base 5 passes through screw fixed connection in the supporting component among the prior art, and rotate on mount pad 6 and install the regulation object among the prior art (for example lamp holder subassembly among the specific electromagnetic wave therapeutic instrument etc.), through the synchronous rotation of first connecting rod 1 and second connecting rod 2 in rotating left linkage and the right linkage, can adjust the height and the angle of regulation object promptly.

In this embodiment, only two limiting posts 4 are arranged on the connecting portion to limit the connecting rods in the left connecting rod group and the right connecting rod group respectively, so as to control the rotation angles of the left connecting rod group and the right connecting rod group relative to the connecting portion, and under the limiting action of the limiting posts 4, the rotation angle range of the first connecting rod 1 in the left connecting rod group is 0-90 ° (the position of the first connecting rod 1 in fig. 4 is a state in which the rotation angle is 90 °), that is, two limiting positions of the rotation of the first connecting rod 1 in the left connecting rod group are respectively in a horizontal state and a vertical state, so that the first connecting rod 1 in the left connecting rod group is prevented from rotating more than 90 ° and falling to the left, and the condition of inconvenience in adjustment is also avoided; meanwhile, the phenomenon that the included angle between the first connecting rod 1 and a supporting component connected with the fixed seat 5 is too small to hurt people due to the fact that the first connecting rod 1 in the left connecting rod group rotates to be smaller than 0 degree (namely the rod body rotates to be below a rotating connection point with the fixed seat 5) is avoided; meanwhile, when the first connecting rod 1 of the left connecting rod group rotates to the vertical state and the first connecting rod 1 of the right connecting rod group also rotates to the limit position of the vertical state, the minimum gap between the first connecting rod 1 of the left connecting rod group and the second connecting rod 2 of the right connecting rod group is larger than 25mm, the gap in the embodiment is 28mm, and therefore the phenomenon that when the left connecting rod group and the right connecting rod group rotate to approach each other, the gap is too small to hurt people is avoided.

Example two

The difference between the second embodiment and the first embodiment is that: as shown in fig. 5, baffle plates 7 are disposed on two sides of the first connecting rod 1 and the second connecting rod 2 of the left connecting rod group and the right connecting rod group, the baffle plates 7 can be connected between the fixing seat 5 and the connecting plate 3 through pins in a rotating manner, and connected between the connecting plate 3 and the mounting seat 6 in a rotating manner, or directly connected on the side wall of the first connecting rod 1 or the second connecting rod 2 through screws in a fixing manner, and a gap between the baffle plate 7 and the side wall of the first connecting rod 1 (or the side wall of the second connecting rod 2) is smaller than 4mm, in this embodiment, a gap between the side wall of the baffle plate 7 facing the first connecting rod 1 and the first connecting rod 1 is 3mm. In this embodiment, utilize baffle 7 to block the protection to the both sides of first connecting rod 1 and second connecting rod 2, avoid first connecting rod 1 and second connecting rod 2 to rotate in-process people's hand and stretch into in the clearance between first connecting rod 1 and the second connecting rod 2 and be hindered by the clamp.

EXAMPLE III

The difference between the third embodiment and the first embodiment is that: as shown in fig. 6, in this embodiment, the limiting post 4 corresponding to the left linkage is disposed on the fixing base 5, the limiting post 4 corresponding to the right linkage is disposed between the two connecting plates 3, and the two limiting posts 4 can also limit the first connecting rod 1 and the second connecting rod 2 in the left linkage and the right linkage. Certainly, in order to promote the spacing effect to first connecting rod 1 and second connecting rod 2 pivoted, for example to left linkage, can set up two spacing posts 4, and one of them spacing post 4 sets up on fixing base 5, and another spacing post 4 sets up between two connecting plates 3 to obtain more stable effect of blockking, no longer describe here.

Example four

The difference between the fourth embodiment and the first embodiment is that: as shown in fig. 7, a hovering unit is disposed between the first connecting rod 1 and the second connecting rod 2, the hovering unit includes an elastic element and a movable connecting element, the elastic element is located in a square tube of the first connecting rod 1 or the second connecting rod 2, one end of the elastic element is connected to the first connecting rod 1 or the second connecting rod 2, the other end of the elastic element is connected to the movable connecting element, one end of the movable connecting element, which is far away from the elastic element, is connected to the second connecting rod 2 or the first connecting rod 1, and this embodiment is described by taking the case where the elastic element is located in the first connecting rod 1 as an example.

In this embodiment, the elastic component is extension spring 8, movable connecting piece includes haulage rope 9 and gyro wheel 10, it has the hanging hole to open on the lateral wall of first connecting rod 1 left end orientation second connecting rod 2, the left end integrated into one piece of extension spring 8 has the drag hook, the drag hook is hung and is leaned on in the hanging hole and fixed, the right-hand member of extension spring 8 is tied up with haulage rope 9 and is connect, gyro wheel 10 rotates to be connected in first connecting rod 1 and be close to the right-hand member of first connecting rod 1, the last one end of keeping away from extension spring 8 of haulage rope 9 is tied up on second connecting rod 2 around connecing behind gyro wheel 10, in order to make overall structure pleasing to the eye and reduce the processing cost, it has the hole to tie up to open on the lateral wall of second connecting rod 2 right-hand member orientation first connecting rod 1, can directly tie up haulage rope 9 in the hole, can conveniently and connect haulage rope 9 fast.

In this embodiment, through installation extension spring 8 in first connecting rod 1, when first connecting rod 1 and second connecting rod 2 are in synchronous rotation, first connecting rod 1 and the less state of second connecting rod 2 interval rotate to the great in-process of interval, extension spring 8 is stretched under the traction effect of haulage rope 9 gradually, the elasticity effect that extension spring 8 produced increases, under the transmission effect of haulage rope 9, make first connecting rod 1 and second connecting rod 2 receive the pulling force effect, thereby when installing the regulation object on the mount pad 6 of right linkage connection, utilize the pulling force effect can make the regulation object hover more stably, use more stable. The above description is only an example of the present invention, and the common general knowledge of the known technical solutions and/or characteristics is not described herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a spacing formula connecting rod structure, includes connecting portion and synchronous rotation connects first connecting rod and the second connecting rod on connecting portion, its characterized in that: the connecting part is connected with a limiting part positioned between the first connecting rod and the second connecting rod, an overlapping region is arranged between the rotating range of the first connecting rod and the rotating range of the second connecting rod, and the limiting part is positioned on a reverse extension line of an angular bisector of two straight edges of the overlapping region.

2. The spacing type connecting rod structure of claim 1, wherein: the locating part is the spacing post of connecting on connecting portion, and the cross section of spacing post is circular.

3. The spacing type connecting rod structure of claim 2, wherein: the diameter of the limiting column is 2.5-8mm.

4. The spacing type connecting rod structure of claim 1, wherein: the connecting part comprises two connecting plates which are arranged oppositely, and the first connecting rod and the second connecting rod are rotatably connected between the two connecting plates; the two connecting plates enclose an installation space, the limiting part is fixedly connected between the two connecting plates, and the limiting part is located in the installation space.

5. The spacing type connecting rod structure of claim 1, wherein: first connecting rod and second connecting rod are the square pipe that the cross section is the rectangle, and the both ends of first connecting rod and the both ends of second connecting rod all are equipped with the fillet.

6. The spacing type connecting rod structure of claim 2, wherein: the limiting column is a pull rivet.

7. The spacing type connecting rod structure of claim 1, wherein: the suspension unit is arranged between the first connecting rod and the second connecting rod and comprises an elastic piece and a movable connecting piece, the elastic piece is located in the first connecting rod or the second connecting rod, one end of the elastic piece is connected with the first connecting rod or the second connecting rod, the other end of the elastic piece is connected with the movable connecting piece, and one end, far away from the elastic piece, of the movable connecting piece is connected with the second connecting rod or the first connecting rod.

8. The spacing type connecting rod structure of claim 1, wherein: the two sides of the first connecting rod and the second connecting rod are both provided with baffles, the baffles on the two sides enclose a protection space, the rotating ranges of the first connecting rod and the second connecting rod are both located in the protection space, and the gap between the baffles and the first connecting rod as well as the gap between the baffles and the second connecting rod are less than or equal to 4mm.

9. A medical device, characterized by: the limiting connecting rod structure according to any one of claims 1 to 7 is used, the number of the limiting connecting rod structures is two, and one connecting part is shared between the two sets of limiting connecting rod structures, wherein one end of one set of limiting connecting rod structure, which is far away from the connecting part, is rotatably connected with a fixed seat, and the other end of the other set of limiting connecting rod structure, which is far away from the connecting part, is rotatably connected with a mounting seat; the mounting seat and/or the fixing seat are/is also provided with a limiting part, and the minimum clearance between the first connecting rod or the second connecting rod in one group of limiting connecting rod structures and the first connecting rod or the second connecting rod in the other group of limiting connecting rod structures is larger than 25mm.

10. A medical device according to claim 9, wherein: the first connecting rod in the limiting connecting rod structure between the fixed seat and the connecting part has a rotation angle range of 0-90 degrees.