CN116942449A

CN116942449A - Examining table

Info

Publication number: CN116942449A
Application number: CN202311044333.XA
Authority: CN
Inventors: 陈鹏; 姚刚华; 解召; 李晓鹏; 李娴; 龚德华; 何明青
Original assignee: Chengdu Haohan Medical Equipment Co ltd
Current assignee: Chengdu Haohan Medical Equipment Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2023-10-27

Abstract

The application provides an examining table, and relates to the technical field of medical treatment. The examination bed comprises: a liftable bed frame; the unreeling device is arranged on the bedstead; the winding device is arranged at the other end of the top of the bedstead along the length direction of the bedstead; the bed sheet is arranged on the unreeling device, and one end of the bed sheet is connected with the reeling device; tensioning assemblies are arranged at two ends of the top bedstead; a photoelectric sensor mounted on one of the tensioning assemblies; the winding device comprises: the first mounting plates are arranged on two sides of the top of the bed frame; the driving motor is arranged on one of the first mounting plates; the mounting piece is mounted on an output shaft of the driving motor; the first positioning piece is arranged on the other first mounting plate and is provided with a bayonet; one end of the wind-up roll is inserted with the mounting piece, and the other end of the wind-up roll is arranged in the bayonet. According to the application, the unreeling device and the reeling device are respectively arranged at two ends of the examination bed, and the automatic laying and reeling of the bed sheet are realized through the reeling device and the unreeling device.

Description

Examining table

Technical Field

The application relates to the technical field of medical treatment, in particular to an examining table.

Background

Several people use the examination bed used in hospitals every day, and the disposable treatment towel is generally placed on the examination bed to avoid cross infection. If the treatment towel is replaced after each person checks, the labor intensity is high, and the checking efficiency can be greatly reduced.

Disclosure of Invention

The application aims to solve the problems, and provides an inspection bed, wherein an unreeling device and a reeling device are respectively arranged at two ends of the inspection bed, and the automatic laying and reeling of a bed sheet are realized through the reeling device and the unreeling device.

The technical scheme adopted by the application is as follows:

an examination couch, comprising:

a liftable bed frame;

the unreeling device is arranged at one end of the top of the bedstead along the length direction of the bedstead;

the winding device is arranged at the other end of the top of the bedstead along the length direction of the bedstead;

the bed sheet is wound to be in a roller structure and is arranged on the unreeling device, and one end of the bed sheet is connected with the winding device;

the tensioning assemblies are arranged at two ends of the top bedstead and are respectively positioned between the bedstead and the unreeling device and between the bedstead and the bedsheet collecting device;

the photoelectric sensor is arranged on one of the tensioning assemblies and is used for counting the length of the bed sheet;

wherein, coiling mechanism includes:

the first mounting plates are arranged on two sides of the top of the bedstead;

the driving motor is arranged on one first mounting plate, and an output shaft of the driving motor faces the other first mounting plate;

the mounting piece is mounted on the output shaft of the driving motor;

the first positioning piece is arranged on the other first mounting plate, and one end, close to the mounting piece, of the first positioning piece is provided with a bayonet;

and one end of the winding roller is inserted into the mounting piece, the other end of the winding roller is arranged in the bayonet, and the winding roller is driven by the driving motor to finish winding the used bed sheet.

Optionally, the liftable bed frame comprises:

a bottom bedstead, on which moving wheels are arranged;

the top bedstead is provided with a back section plate and a bed board, and one end of the back section plate, which is close to the bed board, is hinged with the top bedstead;

one end of the connecting rod assembly is hinged with the top bedstead, and the other end of the connecting rod assembly is hinged with the bottom bedstead;

one end of the driving component is hinged with one end of the back section plate far away from the bed board, and the other end of the driving component is hinged with the connecting rod component, so that the top bed frame can be integrally adjusted in height up and down, and the back section of the top frame can rotate along the hinged position of the driving component;

the guardrail is rotatably arranged on the top bedstead;

the unreeling device is arranged at one end of the bed board, which is far away from the back section plate, and the reeling device is arranged at one end of the back section plate, which is far away from the bed board.

Optionally, the connecting rod assembly includes:

one end of the first connecting rod is arranged at the top of the bottom bedstead and is positioned below the back section board;

one end of the second connecting rod is hinged with the other end of the first connecting rod, and the other end of the second connecting rod is arranged towards one end far away from the bed board;

one end of the third connecting rod is hinged with the other end of the second connecting rod, and the other end of the third connecting rod is arranged towards the bottom of the back section plate;

one end of the fourth connecting rod is hinged with the other end of the third connecting rod, and the other end of the fourth connecting rod faces the bed plate and is positioned at the bottom of the bed plate;

one end of the fifth connecting rod is hinged with the other end of the fourth connecting rod, and the other end of the fifth connecting rod faces to the bottom bedstead;

one end of the sixth connecting rod is hinged with the other end of the fifth connecting rod, and the other end of the sixth connecting rod is arranged towards one end far away from the back section plate;

a seventh connecting rod, one end of which is hinged with the other end of the sixth connecting rod, and the other end of which is connected with the top of the bottom bedstead;

one end of the driving assembly is hinged with one end, far away from the bed board, of the back section plate, and the other end of the driving assembly is hinged with the fourth connecting rod.

Optionally, the bed frame further comprises:

the first mounting rod is arranged on the bottom bedstead and positioned below the back section plate, and one end of the first connecting rod is connected with the first mounting rod;

the second installation rod is arranged on the bottom bedstead and positioned below the bed board, and the other end of the seventh connecting rod is connected with the second installation rod;

and the third mounting rod is mounted on the fourth connecting rod and positioned below the bed plate, and the other end of the driving assembly is hinged with the third mounting rod.

Optionally, the driving assembly includes:

the end part of the output end of the first driving piece is hinged with the bottom of the back section plate, and the other end of the first driving piece is arranged towards one end of the bed plate;

one end of the first connecting piece is hinged with the fixed end of the first driving piece;

the fixed end of the second driving piece is hinged with the other end of the first connecting piece, and one end of a third mounting rod at the other end of the second driving piece is arranged;

and one end of the second connecting piece is hinged with the movable end of the second driving piece, and the other end of the second connecting piece is connected with the third mounting rod.

Optionally, the unreeling device comprises:

the two ends of the side wall of the bedstead in the width direction of the bedstead are provided with the second mounting plates;

the second positioning pieces are respectively arranged on the opposite side walls of the two second mounting plates, and mounting openings are formed in the side walls of the second positioning pieces which are oppositely arranged;

the two ends of the unreeling roller are rotatably arranged in the mounting opening.

Optionally, the tensioning assembly comprises:

the side wall of the bed frame along the width direction of the bed frame is provided with two third mounting plates, the third mounting plates are arranged at the bottom of the bed frame, and the other end of each third mounting plate is obliquely arranged towards the top of the examining bed;

the first paper guide shaft is rotatably arranged between the two mounting plates and is positioned at one end far away from the bedstead;

the second paper guide shaft is rotatably arranged between the two mounting plates and is arranged near one end of the bedstead;

wherein, photoelectric sensor with the second paper guiding axle is connected.

Optionally, the first paper guiding shaft includes:

the two ends of the paper guide rod are connected with the third mounting plate;

the paper guide rod is provided with a paper guide, and the paper guide is provided with a paper guide;

the winding drum is arranged between the two rotating parts;

the structure of the first paper guide shaft is the same as that of the second paper guide shaft, and the photoelectric sensor is arranged on one of the rotating parts of the second paper guide shaft at one end of the bed head.

Optionally, the examination couch further comprises:

and the deviation rectifying component is arranged on one side of the top bedstead provided with one end of the winding device.

Optionally, install the locating part on the bed pole on the top bedstead, one of them be provided with the spout on the third mounting panel, work as after the third mounting panel is installed, the locating part is located in the spout, the subassembly of rectifying includes:

the screw rod motor is arranged on the side wall of the tensioning device, and one end of the screw rod motor is connected with the third mounting plate provided with the sliding groove;

the photoelectric switches are arranged on the opposite side walls of the two third mounting plates;

when the sheet is deviated, the photoelectric switch feeds information back to the control center, the control center controls the screw rod motor to move, and the screw rod motor drives the third mounting plate to move towards one end far away from the winding device or move towards the winding device.

Compared with the prior art, the application has the beneficial effects that:

1. the rotation of the photoelectric sensor is used for recording signals, each circle of signals is 12 signals, the half bed is 230 signals, the whole bed is 460 signals, and after the signals corresponding to the photoelectric sensor are collected, the motor of the bed sheet collecting device moves to realize rolling and simultaneously complete laying of new bed sheets.

2. The bed head and the bed tail are respectively provided with two paper guide rods, the offset of the bed sheet is avoided, the paper guide rods are sleeved with winding drums, the winding drums are used for increasing friction force between the winding drums and the disposable bed sheet, the winding drums are in point contact with two ends of the paper guide rods through rotating pieces, the winding drums can rotate on the paper guide rods, and in order to reduce friction between the rotating pieces and the paper guide rods, solid lubricants are smeared at the joints of the paper guide rods and the rotating pieces.

3. In order to avoid deflection when the sheet is rolled and replaced, the used sheet cannot be rolled onto the sheet collecting device according to the expected requirement, so that the newly laid sheet is subjected to angle deflection, and a deviation rectifying assembly is arranged on the tensioning device and is used for rectifying the sheet.

4. In order to facilitate the use of patients in special positions, the examination bed is arranged into a two-section structure, and the back section plate can be rotated by the driving component to form the backrest.

5. In order to facilitate the transportation of patients inconvenient to move to the examination bed, the height of the examination bed can be lifted.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a structure of an examination couch on which a bed sheet is laid.

Fig. 2 is a schematic view of a sectional front view of an examination table.

Fig. 3 is a schematic diagram of the left-hand structure of the examination bed.

Fig. 4 is a right-side view of the examination table.

Fig. 5 is a schematic view of a partially enlarged structure at a in fig. 4.

Fig. 6 is a schematic view of a partial sectional structure of the examination bed.

Fig. 7 is a partially enlarged schematic structural view at B in fig. 6.

Fig. 8 is a schematic structural view of a paper guide shaft of the inspection bed.

Fig. 9 is a schematic view showing a structure in which a back section plate of an inspection bed is lifted.

Fig. 10 is a schematic view of a second view structure of the raising of the back section plate of the examination table.

Fig. 11 is a partially enlarged schematic structural view of fig. 10 at C.

Reference numerals:

1. a bed frame; 11. a bottom bed frame; 12. a moving wheel; 13. a top bedframe; 14. a back section plate; 15. a bed board; 16. a connecting rod assembly; 161. a first connecting rod; 162. a second connecting rod; 163. a third connecting rod; 164. a fourth connecting rod; 165. a fifth connecting rod; 166. a sixth connecting rod; 167. a seventh connecting rod; 17. a drive assembly; 171. a first driving member; 172. a first connector; 173. a second driving member; 174. a second connector; 18. guard bars; 19. a first mounting bar; 110. a second mounting bar; 120. a third mounting bar; 130. a limit component; 131. a bayonet lock; 132. a seal head; 133. a sliding sleeve; 134. a compression spring; 135. a long bolt; 136. a bolt fixing seat;

2. an unreeling device; 21. a second mounting plate; 22. a second positioning member; 23. a mounting opening; 24. an unreeling roller;

3. a winding device; 31. a first mounting plate; 32. a driving motor; 33. a mounting member; 34. a first positioning member; 35. a bayonet; 36. a wind-up roll;

4. bed sheets;

5. a tensioning assembly; 51. a third mounting plate; 52. a first paper guide shaft; 521. a paper guide rod; 522. a rotating member; 523. fixing the lubricant; 524. winding up a winding drum; 53. a second paper guide shaft;

6. a photoelectric sensor;

7. a deviation rectifying component; 71. a limiting piece; 72. a chute; 73. a screw motor; 74. an optoelectronic switch;

8. and a control center.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships conventionally placed in use of the product of the present application, or orientations or positional relationships conventionally understood by those skilled in the art, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, 2, 3 and 4, an embodiment of the present application provides an inspection bed including: a liftable bedstead 1, an unreeling device 2, a reeling device 3, a bed sheet 4, a tensioning component 5 and a photoelectric sensor 6; the unreeling device 2 is arranged at one end of the top of the bedstead 1 along the length direction. The winding device 3 is arranged at the other end of the top of the bedstead 1 along the length direction. The sheet 4 is wound to be in a roller structure and is arranged on the unreeling device 2, and one end of the sheet 4 is connected with the winding device 3. Tensioning assemblies 5 are mounted at both ends of the top frame 13 and are located between the frame 1 and the unreeling device 2 and between the frame 1 and the sheet 4 collecting device, respectively. A photoelectric sensor 6 is mounted on one of said tensioning assemblies 5 for counting the length of the sheet 4.

When the novel bed sheet winding device is used, the bed sheet 4 is wound to be of a roller structure, the bed sheet 4 is sleeved on the unreeling device 2, one end of the bed sheet 4 is wound to the winding device 3, after the bed sheet 4 on the bed board 15 is used, medical staff presses a control button, and after the winding device 3 receives a signal, the winding device 3 is controlled to move, so that the bed sheet 4 is wound to the winding device 3 after being used. For the convenience rolling still is provided with overspeed device tensioner 5 on top bedstead 13, has set up photoelectric sensor 6 simultaneously on overspeed device tensioner 5, rotates and gathers the signal through photoelectric sensor 6 in the rolling in-process, gathers the signal back of a certain amount, gives control center 8 with information feedback, and control center 8 controls coiling mechanism 3 stop the motion, accomplishes sheet 4 rolling after the use and the laying of new sheet 4.

The control center 8 is provided with a protection mechanism, and if the sheet 4 is changed by misoperation or the current is too large, the power-off process is performed to protect the winding device 3.

More specifically, as shown in fig. 4, the winding device 3 includes: the first mounting plate 31, the driving motor 32, the mounting piece 33, the first positioning piece 34 and the winding roller 36; the first mounting plates 31 are mounted on both sides of the top of the bed frame 1. The driving motor 32 is mounted on one of the first mounting plates 31, and an output shaft of the driving motor 32 is disposed toward the other of the first mounting plates 31. The mounting member 33 is mounted on the output shaft of the drive motor 32. A first positioning member 34 is mounted on the other first mounting plate 31, and a bayonet 35 is provided at one end of the first positioning member 34 near the mounting member 33. One end of the wind-up roller 36 is inserted into the mounting member 33, the other end of the wind-up roller is arranged in the bayonet 35, and the wind-up roller 36 is driven by the driving motor 32 to wind up the used bed sheet 4.

One end of the sheet 4 is wound on the wind-up roller 36, when the sheet 4 needs to be replaced, the control button is pressed, the driving motor 32 is started to drive the wind-up roller 36 to rotate, the wind-up roller 36 drives the tensioning device 5 to rotate when rotating, the photoelectric sensor 6 on the tensioning device 5 performs signal acquisition in the rotating process, after the number of the signal acquisitions reaches a preset value, information is fed back to the control center 8, the control center 8 controls the driving motor 32 to stop rotating, and replacement of the sheet 4 is achieved.

When the use of the roll of sheet 4 is completed, the sheet 4 on the winding roller 36 needs to be removed, and one end of the winding roller 36 is taken out from the bayonet 35 of the first positioning member 34 during the removal, and then one end clamped with the mounting member 33 is taken down. During installation, one end of the wind-up roller 36 is inserted into the installation piece 33, and then the other end of the wind-up roller 36 is clamped on the first positioning piece 34 through the bayonet 35.

It should be noted that, a protrusion is disposed on a side wall of one end of the mounting member 33 and the wind-up roller 36, the wind-up roller 36 is provided with a limit opening corresponding to the protrusion, and the limit opening is aligned with the protrusion when the wind-up roller is inserted.

The photoelectric sensor 6 rotates one circle to have 12 signals, the whole bed of the examination bed has 460 signals, and the control center 8 stops the rotation of the driving motor 32 after receiving the corresponding number of signals fed back by the photoelectric sensor 6, namely, the replacement of the bed sheet 4 with the corresponding length is completed.

In another embodiment, as shown in fig. 1 and 2, the liftable bed frame 1 comprises: a bottom bedframe 11, a top bedframe 13, a linkage assembly 16, a drive assembly 17, and a guard rail 18; the bottom bedstead 11 is provided with a movable wheel 12. The top bedstead 13 is provided with a back section plate 14 and a bed board 15, and one end of the back section plate 14, which is close to the bed board 15, is hinged with the top bedstead 13. One end of the link assembly 16 is hinged with the top bedframe 13, and the other end is hinged with the bottom bedframe 11. One end of the driving component 17 is hinged with one end of the back section plate 14 far away from the bed plate 15, and the other end is hinged with the connecting rod component 16, so that the top bed frame 13 can be adjusted in height up and down as a whole, and the back section of the top frame can rotate along the hinged position. Guard rails 18 are rotatably provided on the top frame 13. The unreeling device 2 is arranged at one end of the bed plate 15 far away from the back section plate 14, and the reeling device 3 is arranged at one end of the back section plate 14 far away from the bed plate 15.

In use, in order to facilitate the patient inconvenient to move to the examination bed, the driving component 17 drives the connecting rod component 16 to move, so that the height of the examination bed can be adjusted. In order to facilitate the transfer of a part of the patient directly by the examination bed, a guardrail 18 is arranged on the top bedstead 13 of the examination bed, so that the patient is prevented from falling off the bed during the shipment process. In order to improve the comfort level of the patient during the transportation, the top bed frame 13 is provided with a back section plate 14 and a bed plate 15, and the back section plate 14 is driven by the driving assembly 17 to rotate, so that the back section plate 14 rotates for a certain angle to form a backrest.

When the examination couch is used for a patient transferring couch, guardrails 18 arranged at two sides of the couch can be turned to one side of the couch surface, so that the patient or things placed on the examination couch can be prevented from falling off in the transferring process.

As shown in fig. 6 and 7, in order to facilitate positioning of the guard rail 18 after overturning, the top bed frame 13 is provided with openings for installing the guard rail 18 along opposite sides of the length direction thereof, and a limiting assembly 130 is disposed in the openings, and the limiting assembly 130 includes: the clamping pin 131, the seal head 132, the sliding sleeve 133, the compression spring 134, the long bolt 135 and the bolt fixing seat 136; the guardrail 18 has two poles at the end that cooperates with the top bed frame 13, and a bayonet lock 131 is provided on one of the poles, and a bayonet lock groove that cooperates with the bayonet lock 131 is provided inside the bed rod of the top bed frame 13. The end enclosure 132 is installed at the rod mouth of the rod piece of the top bedstead 13 at the other side of the opening, the other end of the guardrail 18 enters the rod piece of the top bedstead 13 through the end enclosure 132, the bolt fixing seat 136 is installed in the rod piece provided with the end enclosure 132, and one end of the long bolt 135 penetrates through the bolt fixing seat 136 and is arranged towards the end enclosure 132. The end of the bolt abuts the sliding sleeve 133, a spring is mounted in the sliding sleeve 133, one end of the spring contacts the rod end of the guardrail 18, and the other end contacts the bottom of the sliding sleeve 133.

The bayonet lock 131 in this embodiment can be understood as a protruding structure provided on the outer sidewall of the ring member, and the top of the bed bar of the top bed frame 13 are provided with a bayonet lock matching the protruding structure.

When the guardrail 18 is rotated, the guardrail 18 slides towards one end of the spring to enable the spring to be compressed, the clamping pin 131 is separated from the clamping groove, and after the clamping pin 131 is aligned with the clamping groove, the guardrail 18 is rotated to be clamped into the clamping groove under the acting force of the spring to finish positioning.

In another embodiment, as shown in FIG. 2, the linkage assembly 16 includes: a first connecting rod 161, a second connecting rod 162, a third connecting rod 163, a fourth connecting rod 164, a fifth connecting rod 165, a sixth connecting rod 166, and a seventh connecting rod 167; one end of the first connecting rod 161 is disposed at the top of the bottom frame 11 and below the back section plate 14. One end of the second connecting rod 162 is hinged to the other end of the first connecting rod 161, and the other end is disposed towards one end far away from the bed plate 15. One end of the third connecting rod 163 is hinged to the other end of the second connecting rod 162, and the other end of the third connecting rod 163 is disposed toward the bottom of the back section plate 14. One end of the fourth connecting rod 164 is hinged to the other end of the third connecting rod 163, and the other end of the fourth connecting rod is disposed towards the bed board 15 and is located at the bottom of the bed board 15. One end of the fifth connecting rod 165 is hinged to the other end of the fourth connecting rod 164, and the other end is disposed toward the bottom frame 11. One end of the sixth connecting rod 166 is hinged to the other end of the fifth connecting rod 165, and the other end of the sixth connecting rod 166 is disposed toward the end far from the back section plate 14. One end of the seventh connecting rod 167 is hinged to the other end of the sixth connecting rod 166, and the other end is connected to the top of the bottom frame 11. Wherein, one end of the driving component 17 is hinged with one end of the back section plate 14 far away from the bed plate 15, and the other end of the driving component 17 is hinged with the fourth connecting rod 164.

The first connecting rod 161, the second connecting rod 162, the third connecting rod 163, the fourth connecting rod 164, the fifth connecting rod 165, the sixth connecting rod 166 and the seventh connecting rod 167 are sequentially hinged, and the first connecting rod 161 is fixedly connected with the bottom bedstead 11 below the back section plate 14, and the seventh connecting rod 167 is fixedly connected with the bottom bedstead 11 below the bed board 15. When the top bedstead 13 needs to be lifted horizontally, the driving component 17 moves to drive the fourth connecting rod 164 to rotate around the hinging positions at the two ends of the fourth connecting rod, the third connecting rod 163 and the fifth connecting rod 165 are respectively driven to rotate around the hinging positions in the rotating process, and the third connecting rod 163 and the fifth connecting rod 165 respectively drive the second connecting rod 162 and the sixth connecting rod 166 to rotate.

In another embodiment, as shown in fig. 2, the bed frame 1 further comprises: a first mounting bar 19, a second mounting bar 110 and a third mounting bar 120; the first mounting rod 19 is disposed on the bottom frame 11 and below the back section plate 14, and one end of the first connecting rod 161 is connected to the first mounting rod 19. The second mounting rod 110 is disposed on the bottom frame 11 and below the bed board 15, and the other end of the seventh connecting rod 167 is connected to the second mounting rod 110. A third mounting rod 120 is mounted on the fourth connecting rod 164 and is located below the bed plate 15, and the other end of the driving assembly 17 is hinged to the third mounting rod 120.

In order to more conveniently install the link assembly 16, the first and second installation bars 19 and 110 are provided on the bottom frame 11, and the first and seventh connection bars 161 and 167 are provided on the first and second installation bars 19 and 110, respectively. In order to facilitate the driving assembly 17 to drive the connecting rod assembly 16 to move, a third mounting rod 120 is arranged at one end of the fourth connecting rod 164 below the bed plate 15, and one end of the driving assembly 17 is hinged with the third mounting rod 120.

In another embodiment, as shown in fig. 2, the driving assembly 17 includes: a first driving member 171, a first connecting member 172, a second driving member 173, and a second connecting member 174; the output end of the first driving member 171 is hinged to the bottom of the back section plate 14, and the other end of the first driving member 171 is disposed toward one end of the bed plate 15. One end of the first connection member 172 is hinged to the fixed end of the first driving member 171. The fixed end of the second driving member 173 is hinged to the other end of the first connecting member 172, and one end of the third mounting rod 120 is disposed at the other end of the second driving member 173. One end of the second connecting member 174 is hinged to the movable end of the second driving member 173, and the other end of the second connecting member 174 is connected to the third mounting rod 120.

When the top frame 13 needs to be lifted integrally, the first driving member 171 and the second driving member 173 work to drive the fourth connecting rod 164 to rotate around the hinge, and drive the third connecting rod 163, the fifth connecting rod 165, the second connecting rod 162 and the sixth connecting rod 166 to rotate during rotation, so that the top frame 13 is lifted.

As shown in fig. 2, 9 and 10, when the back section plate 14 needs to be lifted up alone, since both ends of the first driving member 171 are hinged, the bottom of the back section plate 14 is hinged with the overhanging end of the first driving member 171, and the other end of the back section plate 14 is hinged with the top frame 13. When the overhanging end of the second driving member 173 is extended, the first driving member 171 moves toward one end of the back section plate 14, and at this time, the first driving member 171 rotates around its hinge with the first connecting member 172 and the hinge of the back section plate 14, and drives the back section plate 14 to rotate around its hinge with the top bed frame 13.

When the back section plate 14 is lifted, the linear distance between the two tensioning devices 5 is shortened, and the bed sheet 4 needs to be manually pressed down when in use, so that the bed sheet 4 is attached to the back section plate 14 and the bed board 15.

In another embodiment, the unreeling device 2 comprises: a second mounting plate 21, a second positioning member 22 and an unreeling roller 24; the two ends of the side wall of the bedstead 1 along the width direction are provided with the second mounting plates 21. The second positioning members 22 are respectively mounted on opposite side walls of the two second mounting plates 21, and mounting openings 23 are formed in the side walls of the second positioning members 22 which are oppositely arranged. Both ends of the unreeling roller 24 are rotatably placed in the mounting openings 23.

In use, an unused sheet 4 is fitted over the unwind roller 24, and then the unwind roller 24 is placed in the mounting opening 23 of the second positioning member 22, drawing one end of the sheet 4 onto the wind-up roller 36. When the sheet 4 on the unreeling roller 24 is used, the unreeling roller 24 is taken out from the mounting openings 23 of the two second positioning pieces 22 and is sleeved with a new sheet.

In another embodiment, as shown in fig. 3, 4 and 5, the tensioning assembly 5 comprises: a third mounting plate 51, a first paper guide shaft 52, and a second paper guide shaft 53; the lateral wall of the bedstead 1 along the width direction is provided with two third mounting plates 51, the third mounting plates 51 are mounted at the bottom of the bedstead 1, and the other end of the third mounting plates is obliquely arranged towards the top of the examination bed. The first paper guide shaft 52 is rotatably installed between the two mounting plates and is located at one end far from the bed frame 1. The second paper guide shaft 53 is rotatably installed between the two mounting plates and is disposed near one end of the bed frame 1. Wherein the photoelectric sensor 6 is connected with the second paper guide shaft 53.

Two paper guide shafts are arranged at one end to improve the stability of the bed sheet 4 in the automatic laying process, and the photoelectric sensor 6 is arranged on the second paper guide shaft 53 close to one end of the bed frame 1, so that the photoelectric sensor 6 can conveniently collect the running length of the bed sheet 4.

In another embodiment, as shown in fig. 8, the first paper guiding shaft 52 includes: the paper guide bar 521, the rotating member 522 and the winding drum 524, and two ends of the paper guide bar 521 are connected with the third mounting plate 51; two rotating pieces 522 are rotatably arranged on the paper guide rod 521, and solid lubricant is arranged at the joint of the rotating pieces 522 and the paper guide rod 521. A take-up reel 524 is disposed between the two rotational members 522. The first paper guiding shaft 52 has the same structure as the second paper guiding shaft 53, and the photoelectric sensor 6 is disposed on one of the rotating members 522 of the second paper guiding shaft 53 at one end of the bed head.

The paper collecting drum 524 is arranged outside the paper guiding rod 521, the surface of the paper collecting drum 524 is subjected to plastic dipping treatment, friction force between the paper collecting drum 524 and the bed sheets 4 is increased, the paper collecting drum 524 is rotatably arranged on the paper guiding rod 521 through the two rotating parts 522, and solid lubricant is smeared between the two rotating parts 522 and the paper guiding rod 521, so that the paper collecting drum 524 is completely synchronous with the bed sheets 4 in the collection process of the bed sheets 4. In the rotation process, the photoelectric sensor 6 is driven to rotate on the rotating piece 522 arranged at one end of the back section plate 14, the photoelectric sensor 6 records a rotation signal in the rotation process, and when the rotation signal reaches the preset value, the replacement of the bed sheet 4 is completed.

In another embodiment, as shown in fig. 10 and 11, in order to avoid shifting of the sheet 4 during replacement of the sheet 4, the examination bed further comprises: and the deviation rectifying assembly 7 is arranged on one side of the top bedstead 13 provided with one end of the winding device 3.

More specifically, the bed bar on the top bed frame 13 is provided with a limiting member 71, one of the third mounting plates 51 is provided with a sliding groove 72, when the third mounting plate 51 is mounted, the limiting member 71 is located in the sliding groove 72, and the deviation rectifying assembly 7 includes: a lead screw motor 73 and a photoelectric switch 74; a screw motor 73 is mounted on a side wall of the tensioning device, and one end of the screw motor 73 is connected with the third mounting plate 51 provided with the sliding groove 72. The photoelectric switches 74 are mounted on opposite side walls of both the third mounting plates 51. When the sheet 4 is deviated, the photoelectric switch 74 feeds information back to the control center 8, the control center 8 controls the screw motor 73 to move, and the screw motor 73 drives the third mounting plate 51 to move towards one end far away from the winding device 3 or to move towards the winding device 3.

In the use process, when one of the photoelectric switches 74 detects that the sheet 4 is deviated, information is fed back to the control center 8, the control center 8 controls the screw motor 73 to rotate, and the screw motor 73 drives the third mounting plate 51 to move in the rotating process, so that deviation correction can be realized.

When the photoelectric switch 74 arranged on the third mounting plate 51 connected with the screw motor 73 detects that the sheet 4 is deviated, the screw motor 73 drives the third mounting plate 51 to move, so that the third mounting plate 51 moves towards the side close to the winding device 3. When the other photoelectric switch 74 detects that the sheet 4 is deflected, the screw motor 73 drives the third mounting plate 51 to move towards one end far away from the winding device 3.

It should be noted that, the cooperation between the limiting member 71 and the sliding groove 72 in this embodiment is to avoid the third mounting plate 51 from being deviated during the deviation correcting process.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present application, and the present application is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present application has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An inspection bed, comprising:

a liftable bed frame;

wherein, coiling mechanism includes:

the first mounting plates are arranged on two sides of the top of the bedstead;

the mounting piece is mounted on the output shaft of the driving motor;

2. The examination bed of claim 1, wherein the liftable bed frame comprises:

a bottom bedstead, on which moving wheels are arranged;

the guardrail is rotatably arranged on the top bedstead;

3. The examination bed of claim 2, wherein the linkage assembly comprises:

4. The examination bed of claim 3, wherein the bed frame further comprises:

5. The couch of claim 4 wherein the drive assembly comprises:

6. The bed of claim 1, wherein the unreeling device comprises:

7. The examination couch of claim 1, wherein the tensioning assembly comprises:

wherein, photoelectric sensor with the second paper guiding axle is connected.

8. The inspection bed of claim 7 wherein the first paper guide shaft comprises:

the winding drum is arranged between the two rotating parts;

9. The couch of claim 7 wherein the couch further comprises:

10. The examining table of claim 9, wherein a limit member is mounted on a bed bar on the top bed frame, wherein a chute is provided on one of the third mounting plates, and wherein the limit member is positioned in the chute when the third mounting plate is mounted, the deviation rectifying assembly comprises: