CN214712572U

CN214712572U - Shock-absorbing caster wheel of mobile medical equipment and mobile medical equipment

Info

Publication number: CN214712572U
Application number: CN202022206926.XU
Authority: CN
Inventors: 施波
Original assignee: Shanghai United Imaging Healthcare Co Ltd
Current assignee: Shanghai United Imaging Healthcare Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-11-16
Anticipated expiration: 2030-09-30

Abstract

The utility model belongs to the technical field of vehicle and, a portable medical equipment's truckle and portable medical equipment are disclosed. This truckle, include: a tire; the wheel frame is used for being connected with a chassis of a frame of the mobile medical equipment; the lower end of the first buffer piece is abutted against the bottom wall of the wheel frame; the supporting component is pivoted on the side wall of the wheel frame, one end of the supporting component is connected with a tire, the other end of the supporting component is connected with a pull rod, and the pull rod penetrates through the bottom wall and then is connected with the upper end of the first buffer piece; and the second buffer piece is arranged between the upper end and the bottom wall of the pull rod, and the elastic coefficient of the second buffer piece is smaller than that of the first buffer piece. This shock attenuation truckle adopts the mode of first bolster and the combination of second bolster, mainly relies on the effort of first bolster when propping up the tire, when the sunken condition in the face of ground, first bolster can not exert oneself, relies on the second bolster to realize, and the buffering accommodation range is big, avoids the unsettled condition to appear in the tire.

Description

Shock-absorbing caster wheel of mobile medical equipment and mobile medical equipment

Technical Field

The utility model relates to a portable medical equipment technical field especially relates to portable X ray imaging equipment, if remove DR or remove C shape arm equipment, more specifically, the utility model relates to a portable medical equipment's shock attenuation truckle and possess this shock attenuation truckle's portable medical equipment.

Background

As shown in fig. 1, the conventional shock-absorbing caster includes a wheel frame 100, a tire 200, a supporting plate 300, a rotating shaft 400, a stopper 500 and a spring, wherein the wheel frame 100 is connected to the bottom of the vehicle body and is used for bearing the weight of the vehicle body, the stopper 500 is convexly arranged on the inner wall of the wheel frame 100, and the stopper 500 is used for limiting the supporting plate 300. A spring is arranged in the wheel frame 100, and a stud penetrates through the spring after penetrating from the bottom of the wheel frame 100 and is locked by a nut.

In the pushing process of the car body, if the tire 200 meets an obstacle, the tire 200 can move upwards and drive the supporting plate 300 to rotate relative to the rotating shaft 400 until the supporting plate 300 hits the limiting block 500, and in the process, the buffer stroke is completed under the elastic force action of the spring, so that the shock absorption of the shock absorption caster is realized. In the process, the supporting plate 300 and the limiting block 500 directly impact, the rigid impact is large, and the problem of large impact acceleration exists.

In the pushing process of the vehicle body, if the ground is uneven and pits appear, the tire 200 can move downwards for a certain distance because of the existence of the spring, and the tire 200 can be ensured not to be suspended in the air within a certain range. In order to ensure the buffering effect, the spring is a rigid spring with a larger rigidity coefficient, and only one type of spring is used, so that the buffering adjustment range is smaller.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable medical equipment's truckle and portable medical equipment, buffering effect is good, and buffering control range is great.

To achieve the purpose, the utility model adopts the following technical proposal:

a shock absorbing caster for ambulatory medical devices, comprising:

a tire;

the wheel frame is used for being connected with a chassis of a frame of the mobile medical equipment;

the lower end of the first buffer piece is abutted against the bottom wall of the wheel frame;

the supporting assembly is pivoted on the side wall of the wheel frame, one end of the supporting assembly is connected with the tire, the other end of the supporting assembly is connected with a pull rod, and the pull rod penetrates through the bottom wall and then is connected with the upper end of the first buffer piece;

a second buffer member disposed between the upper end of the pull rod and the bottom wall, the second buffer member having a coefficient of elasticity less than the coefficient of elasticity of the first buffer member.

Preferably, the shock-absorbing caster further comprises a movable plate, the pull rod is arranged on the movable plate in a penetrating mode, and the movable plate abuts against the upper end of the first buffer.

Preferably, the first buffer member is a first spring, the pull rod penetrates through the first spring, the upper end of the first spring abuts against the movable plate, and the lower end of the first spring abuts against the bottom wall of the wheel frame.

Preferably, the shock-absorbing caster further comprises a buffer block, the upper end of the buffer block is connected to the movable plate, and the elastic coefficient of the buffer block is greater than that of the first buffer member.

Preferably, the second buffer member is a second spring, the buffer block is disposed through the second spring, the upper end of the second spring abuts against the movable plate, and the lower end of the second spring abuts against the bottom wall.

Preferably, the length of the buffer block is smaller than the length of the second spring in a natural state.

Preferably, the supporting component comprises a supporting plate and a connecting shaft, one end of the supporting plate is connected to the tire, and the other end of the supporting plate is connected to the pull rod through the connecting shaft.

Preferably, a fixing nut is provided at an upper end of the draw bar, and the fixing nut abuts against a top surface of the movable plate.

Preferably, the number of the first cushion members is plural, and the plural first cushion members are symmetrically disposed around the second cushion member.

In order to achieve the above object, the utility model also provides a portable medical equipment, including frame chassis and foretell portable medical equipment's truckle, truckle set up in the bottom on frame chassis.

Preferably, the ambulatory medical device comprises a mobile DR or mobile C-arm device.

The utility model has the advantages that:

the utility model provides a portable medical equipment's truckle of shock attenuation places in the ground after truckle of shock attenuation, and the tire has ascending first effort to supporting component's one end under the effect of ground supporting force. The lower end of the first buffer piece is abutted to the bottom wall of the wheel frame, the compressed first buffer piece has upward acting force on the pull rod under the action force recovery of the first buffer piece, the other end of the supporting component has upward second acting force, and the first acting force and the second acting force are in a balanced state when being equal. Through setting up the great first bolster of coefficient of elasticity, utilize the elastic force of first bolster, enough prop up the tire, bear the weight of the effort good.

When in the pushing process, the tire has the trend of upward movement when encountering an obstacle, at the moment, the first acting force is greater than the second acting force, the supporting assembly rotates anticlockwise relative to the wheel frame and drives the pull rod to move downwards, and the pull rod compresses the first buffer piece and the second buffer piece, so that the buffering effect is good.

When carrying out the in-process, the tire runs into when the sunken tire that leads to in ground has unsettled trend, and the tire has the trend of downstream, sets up between the upper end of pull rod and diapire through the second bolster, and the first bolster of compressed and second bolster have ascending effort to the pull rod under self resumes the effort for supporting component rotates for the wheel frame, and the tire can downstream, makes the tire can laminate the sunken surface in ground, and buffering shock attenuation is effectual.

Increase the second bolster on the basis of first bolster, its aim at, when the ground was fluted, if first bolster is in the state of stretching out completely, unable effort that produces only relies on the gravity of tire, probably be not enough to make the tire move down, need set up the second bolster and drive together, first bolster can not exert oneself this moment, only relies on the second bolster just can realize.

This shock attenuation truckle, the elastic coefficient through setting up the second bolster is less than the elastic coefficient of first bolster, adopts the mode of first bolster and the combination of second bolster, mainly relies on the effort of first bolster when propping up the tire, when the sunken condition in the face of ground, first bolster can not exert oneself, relies on the second bolster to realize, and the buffering accommodation range is big, avoids the tire unsettled condition to appear.

The utility model also provides a portable medical equipment, including frame chassis and above-mentioned portable medical equipment's truckle, the truckle sets up in the bottom on frame chassis, and the truckle has played the effect that bears frame chassis, and when ground is uneven, the truckle has played absorbing effect, and buffering effect is good.

Drawings

FIG. 1 is a schematic structural view of a prior art shock absorbing caster;

FIG. 2 is a schematic view of the portable medical device of the present invention;

FIG. 3 is a schematic structural view of the shock absorbing caster of the present invention;

fig. 4 is a schematic structural view of the shock-absorbing caster of the present invention with the second buffer hidden.

In the figure:

100. a wheel frame; 200. a tire; 300. a supporting plate; 400. a rotating shaft; 500. a limiting block;

101. shock absorbing casters; 102. a chassis of the frame;

1. a tire; 2. a wheel frame; 21. a limiting plate; 3. a first buffer member; 4. a support assembly; 5. a second buffer member; 6. a pull rod; 7. a movable plate; 8. a buffer block; 9. a central shaft; 10. a rotating shaft;

41. a supporting plate; 42. and (7) connecting the shafts.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The utility model also provides a portable medical equipment, specifically, this portable medical equipment is including removing DR or removing C shape arm equipment. As shown in fig. 2, the mobile medical equipment comprises a rack chassis 102 and shock-absorbing casters 101, wherein the shock-absorbing casters 101 are arranged at the bottom of the rack chassis 102, the shock-absorbing casters 101 play a role in bearing the rack chassis 102, and when the ground is uneven, the shock-absorbing casters 101 play a shock-absorbing role, so that the buffering effect is good.

The embodiment provides a truckle 101 of portable medical equipment, as shown in fig. 3, this truckle 101 includes tire 1, wheel frame 2, first bolster 3, supporting component 4 and second bolster 5, and wheel frame 2 is used for being connected with frame chassis 102, is provided with the spliced pole at the top of wheel frame 2, and wheel frame 2 passes through the spliced pole to be connected in frame chassis 102, and the spliced pole has played the intermediate junction effect. The wheel frame 2 is internally provided with the first buffer part 3 and the second buffer part 5, the wheel frame 2 provides accommodating spaces for the first buffer part 3 and the second buffer part 5, the bottom wall of the wheel frame 2 can abut against the lower end of the first buffer part 3 and the lower end of the second buffer part 5 respectively, and the wheel frame 2 plays a bearing role for the first buffer part 3 and the second buffer part 5. The lateral wall of the wheel frame 2 is pivoted with a supporting component 4, one end of the supporting component 4 is connected to the tire 1, the other end of the supporting component 4 is connected with a pull rod 6, and the pull rod 6 penetrates through the bottom wall and then is connected with the upper end of the first buffer piece 3. A second cushion member 5 is provided between the upper end of the tie bar 6 and the bottom wall of the wheel frame 2, and the coefficient of elasticity of the second cushion member 5 is smaller than the coefficient of elasticity of the first cushion member 3.

Specifically, one end of the supporting component 4 is fixedly connected to the rotation center of the tire 1 through the central shaft 9, the other end of the supporting component 4 is connected to the pull rod 6, the approximately middle position of the supporting component 4 is pivoted to the wheel frame 2 through the rotating shaft 10, and when the two ends of the supporting component 4 are stressed unequally, the supporting component 4 can rotate relative to the wheel frame 2.

After the shock-absorbing caster 101 is placed on the ground, the tire 1 has a first upward acting force on one end of the support assembly 4 under the action of the ground supporting force of the tire 1. Through setting up pull rod 6 and being connected with first bolster 3's upper end after passing the diapire, the lower extreme butt of first bolster 3 in the diapire of wheel frame 2, the first bolster 3 of compressed has ascending effort to pull rod 6 under self resumes the effort, makes the other end of supporting component 4 have ascending second effort, and first effort and second effort are equal, are in balanced state. Through setting up the great first bolster 3 of elastic coefficient, utilize the elastic force of first bolster 3, enough prop up tire 1, bear the weight of the effort good.

When in the pushing process, the tire 1 meets an obstacle, the tire 1 has the trend of moving upwards, at the moment, the first acting force is greater than the second acting force, the supporting component 4 rotates anticlockwise relative to the wheel frame 2 and drives the pull rod 6 to move downwards, the pull rod 6 compresses the first buffer component 3 and the second buffer component 5, and the buffering effect is good.

When in the pushing process, when the tire 1 runs into the ground depression and leads to the tire 1 to have a unsettled trend, the tire 1 has the trend of downward movement, set up between the upper end of pull rod 6 and diapire through second bolster 5, the first bolster 3 and the second bolster 5 of compressed resume the effort under self, have ascending effort to pull rod 6, make supporting component 4 rotate for wheel frame 2, tire 1 can the downstream, make tire 1 can laminate the sunken surface in ground, buffering shock attenuation is effectual.

The second buffer member 5 is added on the basis of the first buffer member 3, and the purpose is that when the ground is grooved, if the first buffer member 3 is in a completely extended state, acting force cannot be generated, the tire 1 cannot move downwards only by the gravity of the tire 1, the second buffer member 5 needs to be arranged to drive together, and at the moment, the first buffer member 3 can not output force and can be realized only by the second buffer member 5.

The shock-absorbing caster 101 that this embodiment provided, the elastic coefficient through setting up second bolster 5 is less than the elastic coefficient of first bolster 3, adopts the mode of first bolster 3 and the combination of second bolster 5, mainly relies on the effort of first bolster 3 when propping up tire 1, when the sunken condition in the face of ground, first bolster 3 can not exert oneself, relies on second bolster 5 to realize, and the buffering accommodation range is big, avoids tire 1 to appear unsettled condition.

It can be understood that the number of the first buffer members 3 is plural, and the plural first buffer members 3 are symmetrically arranged around the second buffer member 5 to ensure the balance effect on the bottom wall of the wheel frame 2. In this embodiment, it is preferable that the number of the first buffering members 3 is two, and the two first buffering members 3 are symmetrically disposed on two sides of the second buffering member 5, and the number of the first buffering members 3 is not limited in this embodiment, and as long as the number of the first buffering members 3 is an even number, the number is within the protection range of this embodiment.

Further, the support assembly 4 includes a stay plate 41 and a connecting shaft 42, and one end of the stay plate 41 is connected to the tire 1 through the central shaft 9 and the other end is connected to the tie rod 6 through the connecting shaft 42. The fagging 41 is the strip plate structure, and the quantity of fagging 41 is two, and two fagging 41 parallel interval set up and set up respectively in the both sides of tire 1 to guarantee the balanced effect of tire 1. The connecting shaft 42 is arranged between the two supporting plates 41, and the two supporting plates 41 are connected into an integral structure by arranging the connecting shaft 42. The bottom of the pull rod 6 is provided with a fixing ring, the connecting shaft 42 penetrates through the fixing ring, and interference fit is preferably adopted between the connecting shaft 42 and the fixing ring so as to ensure the fixing effect of the pull rod 6 and the connecting shaft 42.

The upper end of the pull rod 6 is provided with threads, the upper end of the pull rod 6 is provided with the fixing nut in a penetrating mode, after the fixing nut is screwed, the first buffer piece 3 can be limited at the upper end position, and the situation that the first buffer piece 3 is separated from the pull rod 6 is avoided.

In order to further ensure the fixing effect of the first buffer member 3, the shock-absorbing caster 101 further comprises a movable plate 7, the pull rod 6 is inserted through the movable plate 7, and the movable plate 7 and the pull rod 6 can slide relatively. The bottom surface of the movable plate 7 abuts against the upper end of the first cushion 3, and the top surface of the movable plate 7 abuts against the fixing nut. Through setting up the fly leaf 7, the fly leaf 7 can butt two first bolster 3 simultaneously, has played the effect of intermediate junction to guarantee balanced effect.

Specifically, the first buffer member 3 is a first spring, the pull rod 6 is disposed through the first spring, and the pull rod 6 is used for mounting the first spring. The upper end butt of first spring is in fly leaf 7, and the lower extreme butt of first spring is in the diapire of wheel frame 2, and wherein the diapire of wheel frame 2 specifically indicates wheel frame 2's limiting plate 21, and fly leaf 7 and limiting plate 21 have played the effect spacing to first spring jointly.

Because the prior art tire meets the barrier after, fagging and stopper direct impact, the rigidity strikes greatly, has the problem of great shock acceleration, in order to solve this problem, as shown in fig. 3-4, this shock attenuation truckle 101 still includes buffer 8, and the upper end of buffer 8 is connected in fly leaf 7, and fly leaf 7 has played the effect of fixing, installing buffer 8. The coefficient of elasticity of the buffer 8 is greater than the coefficient of elasticity of the first buffer 3, and the buffer 8 is made of an elastic material, such as rubber.

During the advance of the cart, the frame chassis 2 presses against the wheel rim 2, and when an obstacle is encountered, the tire 1 will be lifted and move upwards because the obstacle is absolutely rigid. At this time, the supporting plate 41 rotates counterclockwise relative to the rotating shaft 10, and pulls the pull rod 6 and the movable plate 7 to move downward, compressing the first buffer member 3 and the second buffer member 5 until the buffer block 8 hits the limiting plate 21 of the wheel frame 2, so as to perform buffering and limiting functions. Through setting up buffer block 8, improved the spacing mode of rigidity of current tire 1, there is the buffering effect when making tire 1 bump into limiting plate 21 to reduce the rigidity and strike.

Specifically, the second buffer 5 is a second spring, the buffer block 8 penetrates through the second spring, and the buffer block 8 plays a role in installing the second spring. The upper end of the second spring is connected to the movable plate 7, and the lower end of the second spring is connected to the bottom wall. The movable plate 7 and the limiting plate 21 of the wheel frame 2 jointly play a role in limiting the second spring.

Further, the length of the buffer block 8 is smaller than the length of the second spring in the natural state. Specifically, when the shock-absorbing caster 101 is in a balanced state, the first buffer member 3 and the second buffer member 5 are both in a compressed state, and until the strength of the first buffer member 3 and the second buffer member 5 is enough to support the tire 1, the buffer block 8 is separated from the limiting plate 21, and the buffer block 8 and the limiting plate 21 keep a certain distance, so as to ensure that a certain impact space exists between the buffer block 8 and the limiting plate 21. If the length of the buffer block 8 is not less than the length of the second spring in the natural state, the buffer block 8 will abut against the limiting plate 21 in the balanced state, which affects the stability of the balanced state.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A shock-absorbing caster of a mobile medical device, comprising a tire (1), characterized by further comprising:

the wheel frame (2) is used for being connected with a rack chassis (102) of the mobile medical equipment;

a first cushion member (3) having a lower end abutting against a bottom wall of the wheel frame (2);

the supporting component (4) is pivoted on the side wall of the wheel frame (2), one end of the supporting component (4) is connected with the tire (1), the other end of the supporting component is connected with a pull rod (6), and the pull rod (6) penetrates through the bottom wall and then is connected with the upper end of the first buffer piece (3);

a second buffer (5) arranged between the upper end of the pull rod (6) and the bottom wall, the elastic coefficient of the second buffer (5) being smaller than the elastic coefficient of the first buffer (3).

2. The mobile medical equipment shock-absorbing caster according to claim 1, further comprising a movable plate (7), wherein the tie rod (6) is inserted into the movable plate (7), and the movable plate (7) abuts against an upper end of the first buffer (3).

3. The shock-absorbing caster of mobile medical equipment according to claim 2, wherein the first buffer (3) is a first spring, the pull rod (6) is inserted into the first spring, the upper end of the first spring abuts against the movable plate (7), and the lower end of the first spring abuts against the bottom wall of the wheel frame (2).

4. The caster according to claim 2, further comprising a buffer block (8), wherein the upper end of the buffer block (8) is connected to the movable plate (7), and the elastic coefficient of the buffer block (8) is greater than the elastic coefficient of the first buffer (3).

5. The caster with shock absorption of mobile medical equipment according to claim 4, wherein the second buffer (5) is a second spring, the buffer block (8) is disposed through the second spring, the upper end of the second spring abuts against the movable plate (7), and the lower end of the second spring abuts against the bottom wall.

6. The mobile medical equipment shock-absorbing caster according to claim 5, wherein the length of the buffer block (8) is smaller than the length of the second spring in a natural state.

7. The caster for mobile medical equipment according to claim 1, wherein the support member (4) comprises a support plate (41) and a connecting shaft (42), one end of the support plate (41) is connected to the tire (1), and the other end is connected to the tie bar (6) through the connecting shaft (42).

8. The mobile medical equipment shock-absorbing caster according to claim 2, wherein a fixing nut is provided at an upper end of the drawbar (6), the fixing nut abutting against a top surface of the movable plate (7).

9. The caster for mobile medical equipment according to claim 1, wherein the first buffer member (3) is provided in a plurality of numbers, and the first buffer members (3) are symmetrically provided around the second buffer member (5).

10. A ambulatory medical device comprising a chassis (102) and the castor wheel of the ambulatory medical device of any of claims 1-9, wherein the castor wheel is disposed on the bottom of the chassis (102).

11. The ambulatory medical device according to claim 10, wherein said ambulatory medical device is a mobile DR or mobile C-arm device.