Disclosure of Invention
In order to overcome the defects that the existing examining bed for the internal medicine generally adopts a fixed structure, cannot be adjusted, causes great difficulty for a patient to get on or off the examining bed, is difficult to fix a bed sheet, often disorganizes the bed sheet when the patient gets on or off the examining bed, needs medical staff to often order the bed sheet, and is troublesome to use, the technical problem of the invention is that: provided is a convenient-to-use examination bed for internal medicine, which can be conveniently adjusted and can fix a bed sheet.
The technical scheme of the invention is as follows: a convenient-to-use examination bed for internal medicine comprises a base, a large support, a large connecting plate, a first large connecting shaft, a large supporting plate, a bed plate, a rectangular frame, a first lifting rod, an arc plate, a triangular plate, a second lifting rod, a contact plate, a long connecting plate, a large nut, a second large connecting shaft, a large screw rod, a large bearing seat, a left bearing and a rotating wheel, wherein the top of the base is provided with a long groove, the top of the base is connected with the large support, the large support is positioned on the left side of the long groove, the large connecting plate is positioned above the base, the bottom of the large connecting plate is provided with a large swinging groove, the upper end of the large support is positioned in the large swinging groove, the large support is contacted with the large connecting plate, the upper end of the large support is connected with the first large connecting shaft, the first large connecting shaft is rotatably connected with the lower end of the large connecting plate, the top of the large connecting plate, the upper end of the large connecting plate is connected with the left end of the bottom of the large supporting plate, the left end of the large supporting plate is provided with a first large rectangular groove which is positioned right above the first long rectangular groove, the top of the large supporting plate is connected with a bed plate which is positioned in a rectangular frame, the rectangular frame is in sliding fit with the bed plate, the bottom of the rectangular frame is contacted with the top of the large supporting plate, the left end of the bottom of the rectangular frame is connected with a first lifting rod which is positioned in the first long rectangular groove and the first large rectangular groove in a sliding manner, the left side wall of the first lifting rod is uniformly provided with a plurality of first ratchet grooves, the right end of the bottom of the large supporting plate is connected with an arc plate, the top of the arc plate is provided with a second long rectangular groove, the right end of the large supporting plate is provided with a second large rectangular groove which is positioned right above the second long rectangular groove, the left side of the arc plate is connected with a triangular plate, the top of the triangular plate is, the right end of the bottom of the rectangular frame is connected with a second lifting rod, the second lifting rod is slidably positioned in a second long rectangular groove and a second large rectangular groove, the right side wall of the second lifting rod is uniformly provided with a plurality of second ratchet grooves, a contact plate is positioned below the triangular plate, the contact plate is contacted with the triangular plate, the top of the contact plate is matched with the bottom of the triangular plate, the lower end of the contact plate is positioned in a long groove, the contact plate is in sliding fit with the long groove, the left side of the contact plate is connected with a long connecting plate, a large nut is positioned behind the long connecting plate, the front side of the large nut is connected with a second large connecting shaft, the second large connecting shaft is connected with the left end of the long connecting plate, the large nut is sleeved on the large screw rod and is in threaded connection with the large screw rod, the right end of the large screw rod is in interference fit with a bearing in the large bearing block, the bottom of the large, the left end and the left bearing interference of big lead screw are connected, left bearing inlays and establishes in the right side wall of big support, the swiveling wheel fixed sleeve is on the left end of big lead screw, the left end of big layer board is opened there are first movable groove and first little recess, first movable groove is located the left side of first big rectangular channel, first movable groove is linked together with first big rectangular channel, first little recess is located the top of first movable groove, first little recess communicates with first movable groove, the right-hand member of big layer board is opened there are second movable groove and the little recess of second, the second movable groove is located the right side of the big rectangular channel of second, the second movable groove is linked together with the big rectangular channel of second, the little recess of second is located the top of second movable groove, the little recess of second communicates with the second movable groove.
In a preferred embodiment of the invention, the lifting device further comprises a first big spring, a first ratchet block, a first small spring, a first driving lever, a second big spring, a second ratchet block, a second small spring and a second driving lever, wherein the lower end of the first lifting rod is connected with the first big spring, the first big spring is positioned in the first long rectangular groove, the lower end of the first big spring is connected with the big connecting plate, the first ratchet block is slidably positioned in the first movable groove, the right end of the first ratchet block is positioned in the first ratchet groove, the first ratchet block is matched with the first ratchet groove, the left end of the first ratchet block is connected with the first small spring, the first small spring is positioned in the first movable groove, the left end of the first small spring is connected with the big supporting plate, the top of the first ratchet block is connected with the first driving lever, the first small groove is slidably positioned in the first small groove, the lower end of the second lifting rod is connected with the second big spring, the second big spring is positioned in the second long rectangular groove, the lower extreme of the big spring of second is connected with the arc, the second thorn piece slidingtype is located the second activity inslot, the left end of second thorn piece is located the second thorn inslot, the second thorn piece cooperatees with the second thorn groove, the right-hand member of second thorn piece is connected with the little spring of second, the little spring of second is located the second activity inslot, the right-hand member of the little spring of second is connected with big layer board, the top of second thorn piece is connected with the second driving lever, the second driving lever slidingtype is located the little recess of second.
In a preferred embodiment of the invention, the connecting device further comprises a ratchet wheel, a pawl, a small connecting shaft, an oval stop lever and a tension spring, wherein the front end of the first large connecting shaft is connected with the ratchet wheel, the ratchet wheel is positioned in front of the large connecting plate, the pawl is positioned on the left side of the ratchet wheel, the pawl is matched with the ratchet wheel, the lower end of the pawl is connected with the small connecting shaft, the rear end of the small connecting shaft is rotatably connected with the front side wall of the large connecting plate, the front side wall of the large connecting plate is connected with the oval stop lever, the oval stop lever is positioned on the right side of the pawl, the oval stop lever is in contact with the pawl, the.
In a preferred embodiment of the invention, the ratchet wheel further comprises a small swinging plate, a semicircular clamping block and a plate spring, wherein the bottom of the pawl is connected with the small swinging plate, the small swinging plate is provided with a wedge-shaped hole, the bottom of the oval stop lever is connected with the plate spring, the lower end of the plate spring is connected with the semicircular clamping block, the semicircular clamping block is positioned in the wedge-shaped hole, and the semicircular clamping block is in contact with the small swinging plate.
According to the invention, the rectangular frame is taken down from the bed board, then the bed sheet is paved on the bed board, then the rectangular frame is sleeved back on the bed board, the rectangular frame presses the bed sheet, so that the bed sheet is prevented from being disordered when a patient goes up and down the bed board, when the patient is difficult to go up and down the bed board, the rotating wheel can be rotated, the rotating wheel drives the large screw rod to rotate, the large screw rod drives the large nut to move, the large nut drives the long connecting plate and the contact plate to move through the second large connecting shaft, when the contact plate moves leftwards, the triangular plate can drive the arc plate, the large supporting plate, the bed board and the rectangular frame to move downwards together, and the large connecting plate and the first large connecting shaft provide swing assistance for the large supporting plate, so that the height of the bed board can be reduced, the.
First sour jujube piece and second sour jujube piece block respectively at this moment in first sour jujube groove and second sour jujube groove, thereby can be more firm with the rectangular frame is fixed, and tightly push down the sheet through rectangular frame, fixed effect is better, when needs take off the sheet, can stir first driving lever and second driving lever to the outside, and shift out first sour jujube piece and second sour jujube piece respectively from first sour jujube groove and second sour jujube groove, under the spring action of first big spring and second big spring this moment, first lifter and second lifter drive rectangular frame simultaneously and upwards move, thereby be convenient for medical personnel take away the sheet on the bed board.
When the pawl card was on the ratchet, can prevent ratchet anticlockwise rotation to carry on spacingly to big connecting plate and first big connecting axle, safe and reliable more, when needs carried out anticlockwise swing to ratchet and big connecting plate, can pull open the pawl from the ratchet, thereby can swing convenient to use safety to big connecting plate.
When medical personnel moved away the pawl from the ratchet, little swing board swung right, and the wedge-shaped hole is passed to semi-circular fixture block to hook little swing board, thereby can fix the pawl, and medical personnel of being convenient for vacate the hand and carry out other operations, and it is more convenient to use.
The convenient-to-use examination bed for internal medicine provided by the invention has a flexible structure, can be conveniently adjusted, is convenient for a patient to go up and down the examination bed, is time-saving and labor-saving, can fix a bed sheet, avoids the bed sheet from being disordered when the patient goes up and down the examination bed, saves the time of medical staff, is convenient to use, is easy to produce and manufacture, is easy to maintain and repair, and is easy to popularize and apply.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which the invention is attached.
Example 1
A convenient-to-use examination bed for internal medicine is disclosed, as shown in figures 1-3, and comprises a base 1, a large support 2, a large connecting plate 3, a first large connecting shaft 4, a large supporting plate 5, a bed plate 6, a rectangular frame 7, a first lifting rod 8, an arc-shaped plate 9, a triangular plate 10, a second lifting rod 11, a contact plate 12, a long connecting plate 13, a large nut 14, a second large connecting shaft 15, a large screw rod 16, a large bearing seat 17, a left bearing 18 and a rotating wheel 19, wherein the top of the base 1 is provided with a long groove 101, the top of the base 1 is connected with the large support 2, the large support 2 is positioned at the left side of the long groove 101, the large connecting plate 3 is positioned above the base 1, the bottom of the large connecting plate 3 is provided with a large swinging groove 301, the upper end of the large support 2 is positioned in the large swinging groove 301, the large support 2 is in contact with the large connecting plate 3, the upper end of the large support 2 is connected with the first, the top of the large connecting plate 3 is provided with a first long rectangular groove 302, the first long rectangular groove 302 is positioned above the large swing groove 301, the upper end of the large connecting plate 3 is connected with the left end of the bottom of the large supporting plate 5, the left end of the large supporting plate 5 is provided with a first large rectangular groove 501, the first large rectangular groove 501 is positioned right above the first long rectangular groove 302, the top of the large supporting plate 5 is connected with a bed plate 6, the bed plate 6 is positioned in a rectangular frame 7, the rectangular frame 7 is in sliding fit with the bed plate 6, the bottom of the rectangular frame 7 is contacted with the top of the large supporting plate 5, the left end of the bottom of the rectangular frame 7 is connected with a first lifting rod 8, the first lifting rod 8 is in the first long rectangular groove 302 and the first large rectangular groove 501 in a sliding manner, the left side wall of the first lifting rod 8 is uniformly provided with a plurality of first ratchet grooves 81, the right end of the bottom of the large supporting plate 5 is connected with an arc plate 9, the, the right end of the large supporting plate 5 is provided with a second large rectangular groove 502, the second large rectangular groove 502 is positioned right above the second long rectangular groove 901, the left side of the arc-shaped plate 9 is connected with a triangular plate 10, the top of the triangular plate 10 is connected with the bottom of the large supporting plate 5, the right end of the bottom of the rectangular frame 7 is connected with a second lifting rod 11, the second lifting rod 11 is slidably positioned in the second long rectangular groove 901 and the second large rectangular groove 502, the right side wall of the second lifting rod 11 is uniformly provided with a plurality of second ratchet grooves 111, the contact plate 12 is positioned below the triangular plate 10, the contact plate 12 is contacted with the triangular plate 10, the top of the contact plate 12 is matched with the bottom of the triangular plate 10, the lower end of the contact plate 12 is positioned in the long groove 101, the contact plate 12 is slidably matched with the long groove 101, the left side of the contact plate 12 is connected with a long connecting plate 13, the large nut 14 is positioned behind the long connecting plate 13, the front side, the second large connecting shaft 15 is connected with the left end of the long connecting plate 13, the large nut 14 is sleeved on the large screw mandrel 16, the large nut 14 is in threaded connection with the large screw mandrel 16, the right end of the large screw mandrel 16 is in interference connection with a bearing in the large bearing seat 17, the bottom of the large bearing seat 17 is connected with the top of the base 1, the large bearing seat 17 is positioned behind the long groove 101, the left end of the large screw mandrel 16 is in interference connection with the left bearing 18, the left bearing 18 is embedded in the right side wall of the large bracket 2, the rotating wheel 19 is fixedly sleeved on the left end of the large screw mandrel 16, the left end of the large supporting plate 5 is provided with a first movable groove 503 and a first small groove 504, the first movable groove 503 is positioned on the left side of the first large rectangular groove 501, the first movable groove 503 is communicated with the first large rectangular groove 501, the first small groove 504 is positioned above the first movable groove 503, the first small groove 504 is communicated with the first movable groove 503, the right end of the large supporting plate 5 is provided with a second movable groove 505 and, the second movable groove 505 is positioned at the right side of the second large rectangular groove 502, the second movable groove 505 is communicated with the second large rectangular groove 502, the second small groove 506 is positioned above the second movable groove 505, and the second small groove 506 is communicated with the second movable groove 505.
Example 2
A convenient-to-use examination bed for internal medicine is disclosed, as shown in figures 1-3, and comprises a base 1, a large support 2, a large connecting plate 3, a first large connecting shaft 4, a large supporting plate 5, a bed plate 6, a rectangular frame 7, a first lifting rod 8, an arc-shaped plate 9, a triangular plate 10, a second lifting rod 11, a contact plate 12, a long connecting plate 13, a large nut 14, a second large connecting shaft 15, a large screw rod 16, a large bearing seat 17, a left bearing 18 and a rotating wheel 19, wherein the top of the base 1 is provided with a long groove 101, the top of the base 1 is connected with the large support 2, the large support 2 is positioned at the left side of the long groove 101, the large connecting plate 3 is positioned above the base 1, the bottom of the large connecting plate 3 is provided with a large swinging groove 301, the upper end of the large support 2 is positioned in the large swinging groove 301, the large support 2 is in contact with the large connecting plate 3, the upper end of the large support 2 is connected with the first, the top of the large connecting plate 3 is provided with a first long rectangular groove 302, the first long rectangular groove 302 is positioned above the large swing groove 301, the upper end of the large connecting plate 3 is connected with the left end of the bottom of the large supporting plate 5, the left end of the large supporting plate 5 is provided with a first large rectangular groove 501, the first large rectangular groove 501 is positioned right above the first long rectangular groove 302, the top of the large supporting plate 5 is connected with a bed plate 6, the bed plate 6 is positioned in a rectangular frame 7, the rectangular frame 7 is in sliding fit with the bed plate 6, the bottom of the rectangular frame 7 is contacted with the top of the large supporting plate 5, the left end of the bottom of the rectangular frame 7 is connected with a first lifting rod 8, the first lifting rod 8 is in the first long rectangular groove 302 and the first large rectangular groove 501 in a sliding manner, the left side wall of the first lifting rod 8 is uniformly provided with a plurality of first ratchet grooves 81, the right end of the bottom of the large supporting plate 5 is connected with an arc plate 9, the, the right end of the large supporting plate 5 is provided with a second large rectangular groove 502, the second large rectangular groove 502 is positioned right above the second long rectangular groove 901, the left side of the arc-shaped plate 9 is connected with a triangular plate 10, the top of the triangular plate 10 is connected with the bottom of the large supporting plate 5, the right end of the bottom of the rectangular frame 7 is connected with a second lifting rod 11, the second lifting rod 11 is slidably positioned in the second long rectangular groove 901 and the second large rectangular groove 502, the right side wall of the second lifting rod 11 is uniformly provided with a plurality of second ratchet grooves 111, the contact plate 12 is positioned below the triangular plate 10, the contact plate 12 is contacted with the triangular plate 10, the top of the contact plate 12 is matched with the bottom of the triangular plate 10, the lower end of the contact plate 12 is positioned in the long groove 101, the contact plate 12 is slidably matched with the long groove 101, the left side of the contact plate 12 is connected with a long connecting plate 13, the large nut 14 is positioned behind the long connecting plate 13, the front side, the second large connecting shaft 15 is connected with the left end of the long connecting plate 13, the large nut 14 is sleeved on the large screw mandrel 16, the large nut 14 is in threaded connection with the large screw mandrel 16, the right end of the large screw mandrel 16 is in interference connection with a bearing in the large bearing seat 17, the bottom of the large bearing seat 17 is connected with the top of the base 1, the large bearing seat 17 is positioned behind the long groove 101, the left end of the large screw mandrel 16 is in interference connection with the left bearing 18, the left bearing 18 is embedded in the right side wall of the large bracket 2, the rotating wheel 19 is fixedly sleeved on the left end of the large screw mandrel 16, the left end of the large supporting plate 5 is provided with a first movable groove 503 and a first small groove 504, the first movable groove 503 is positioned on the left side of the first large rectangular groove 501, the first movable groove 503 is communicated with the first large rectangular groove 501, the first small groove 504 is positioned above the first movable groove 503, the first small groove 504 is communicated with the first movable groove 503, the right end of the large supporting plate 5 is provided with a second movable groove 505 and, the second movable groove 505 is positioned at the right side of the second large rectangular groove 502, the second movable groove 505 is communicated with the second large rectangular groove 502, the second small groove 506 is positioned above the second movable groove 505, and the second small groove 506 is communicated with the second movable groove 505.
The lifting device also comprises a first big spring 21, a first ratchet block 22, a first small spring 23, a first lifting lever 24, a second big spring 25, a second ratchet block 26, a second small spring 27 and a second lifting lever 28, wherein the lower end of the first lifting rod 8 is connected with the first big spring 21, the first big spring 21 is positioned in a first long rectangular groove 302, the lower end of the first big spring 21 is connected with a big connecting plate 3, the first ratchet block 22 is slidably positioned in a first movable groove 503, the right end of the first ratchet block 22 is positioned in the first ratchet groove 81, the first ratchet block 22 is matched with the first ratchet groove 81, the left end of the first ratchet block 22 is connected with the first small spring 23, the first small spring 23 is positioned in the first movable groove 503, the left end of the first small spring 23 is connected with a big supporting plate 5, the top of the first ratchet block 22 is connected with the first lifting lever 24, the first lifting lever 24 is slidably positioned in a first small groove 504, the lower end of the second lifting rod 11 is connected with the second big spring 25, the second large spring 25 is located in the second long rectangular groove 901, the lower end of the second large spring 25 is connected with the arc-shaped plate 9, the second ratchet block 26 is slidably located in the second movable groove 505, the left end of the second ratchet block 26 is located in the second ratchet groove 111, the second ratchet block 26 is matched with the second ratchet groove 111, the right end of the second ratchet block 26 is connected with the second small spring 27, the second small spring 27 is located in the second movable groove 505, the right end of the second small spring 27 is connected with the large support plate 5, the top of the second ratchet block 26 is connected with the second shift lever 28, and the second shift lever 28 is slidably located in the second small concave groove 506.
Example 3
A convenient-to-use examination bed for internal medicine is disclosed, as shown in figures 1-3, and comprises a base 1, a large support 2, a large connecting plate 3, a first large connecting shaft 4, a large supporting plate 5, a bed plate 6, a rectangular frame 7, a first lifting rod 8, an arc-shaped plate 9, a triangular plate 10, a second lifting rod 11, a contact plate 12, a long connecting plate 13, a large nut 14, a second large connecting shaft 15, a large screw rod 16, a large bearing seat 17, a left bearing 18 and a rotating wheel 19, wherein the top of the base 1 is provided with a long groove 101, the top of the base 1 is connected with the large support 2, the large support 2 is positioned at the left side of the long groove 101, the large connecting plate 3 is positioned above the base 1, the bottom of the large connecting plate 3 is provided with a large swinging groove 301, the upper end of the large support 2 is positioned in the large swinging groove 301, the large support 2 is in contact with the large connecting plate 3, the upper end of the large support 2 is connected with the first, the top of the large connecting plate 3 is provided with a first long rectangular groove 302, the first long rectangular groove 302 is positioned above the large swing groove 301, the upper end of the large connecting plate 3 is connected with the left end of the bottom of the large supporting plate 5, the left end of the large supporting plate 5 is provided with a first large rectangular groove 501, the first large rectangular groove 501 is positioned right above the first long rectangular groove 302, the top of the large supporting plate 5 is connected with a bed plate 6, the bed plate 6 is positioned in a rectangular frame 7, the rectangular frame 7 is in sliding fit with the bed plate 6, the bottom of the rectangular frame 7 is contacted with the top of the large supporting plate 5, the left end of the bottom of the rectangular frame 7 is connected with a first lifting rod 8, the first lifting rod 8 is in the first long rectangular groove 302 and the first large rectangular groove 501 in a sliding manner, the left side wall of the first lifting rod 8 is uniformly provided with a plurality of first ratchet grooves 81, the right end of the bottom of the large supporting plate 5 is connected with an arc plate 9, the, the right end of the large supporting plate 5 is provided with a second large rectangular groove 502, the second large rectangular groove 502 is positioned right above the second long rectangular groove 901, the left side of the arc-shaped plate 9 is connected with a triangular plate 10, the top of the triangular plate 10 is connected with the bottom of the large supporting plate 5, the right end of the bottom of the rectangular frame 7 is connected with a second lifting rod 11, the second lifting rod 11 is slidably positioned in the second long rectangular groove 901 and the second large rectangular groove 502, the right side wall of the second lifting rod 11 is uniformly provided with a plurality of second ratchet grooves 111, the contact plate 12 is positioned below the triangular plate 10, the contact plate 12 is contacted with the triangular plate 10, the top of the contact plate 12 is matched with the bottom of the triangular plate 10, the lower end of the contact plate 12 is positioned in the long groove 101, the contact plate 12 is slidably matched with the long groove 101, the left side of the contact plate 12 is connected with a long connecting plate 13, the large nut 14 is positioned behind the long connecting plate 13, the front side, the second large connecting shaft 15 is connected with the left end of the long connecting plate 13, the large nut 14 is sleeved on the large screw mandrel 16, the large nut 14 is in threaded connection with the large screw mandrel 16, the right end of the large screw mandrel 16 is in interference connection with a bearing in the large bearing seat 17, the bottom of the large bearing seat 17 is connected with the top of the base 1, the large bearing seat 17 is positioned behind the long groove 101, the left end of the large screw mandrel 16 is in interference connection with the left bearing 18, the left bearing 18 is embedded in the right side wall of the large bracket 2, the rotating wheel 19 is fixedly sleeved on the left end of the large screw mandrel 16, the left end of the large supporting plate 5 is provided with a first movable groove 503 and a first small groove 504, the first movable groove 503 is positioned on the left side of the first large rectangular groove 501, the first movable groove 503 is communicated with the first large rectangular groove 501, the first small groove 504 is positioned above the first movable groove 503, the first small groove 504 is communicated with the first movable groove 503, the right end of the large supporting plate 5 is provided with a second movable groove 505 and, the second movable groove 505 is positioned at the right side of the second large rectangular groove 502, the second movable groove 505 is communicated with the second large rectangular groove 502, the second small groove 506 is positioned above the second movable groove 505, and the second small groove 506 is communicated with the second movable groove 505.
The lifting device also comprises a first big spring 21, a first ratchet block 22, a first small spring 23, a first lifting lever 24, a second big spring 25, a second ratchet block 26, a second small spring 27 and a second lifting lever 28, wherein the lower end of the first lifting rod 8 is connected with the first big spring 21, the first big spring 21 is positioned in a first long rectangular groove 302, the lower end of the first big spring 21 is connected with a big connecting plate 3, the first ratchet block 22 is slidably positioned in a first movable groove 503, the right end of the first ratchet block 22 is positioned in the first ratchet groove 81, the first ratchet block 22 is matched with the first ratchet groove 81, the left end of the first ratchet block 22 is connected with the first small spring 23, the first small spring 23 is positioned in the first movable groove 503, the left end of the first small spring 23 is connected with a big supporting plate 5, the top of the first ratchet block 22 is connected with the first lifting lever 24, the first lifting lever 24 is slidably positioned in a first small groove 504, the lower end of the second lifting rod 11 is connected with the second big spring 25, the second large spring 25 is located in the second long rectangular groove 901, the lower end of the second large spring 25 is connected with the arc-shaped plate 9, the second ratchet block 26 is slidably located in the second movable groove 505, the left end of the second ratchet block 26 is located in the second ratchet groove 111, the second ratchet block 26 is matched with the second ratchet groove 111, the right end of the second ratchet block 26 is connected with the second small spring 27, the second small spring 27 is located in the second movable groove 505, the right end of the second small spring 27 is connected with the large support plate 5, the top of the second ratchet block 26 is connected with the second shift lever 28, and the second shift lever 28 is slidably located in the second small concave groove 506.
The connecting device is characterized by further comprising a ratchet wheel 31, a pawl 32, a small connecting shaft 33, an oval stop lever 34 and a tension spring 35, wherein the front end of the first large connecting shaft 4 is connected with the ratchet wheel 31, the ratchet wheel 31 is located in front of the large connecting plate 3, the pawl 32 is located on the left side of the ratchet wheel 31, the pawl 32 is matched with the ratchet wheel 31, the lower end of the pawl 32 is connected with the small connecting shaft 33, the rear end of the small connecting shaft 33 is rotatably connected with the front side wall of the large connecting plate 3, the front side wall of the large connecting plate 3 is connected with the oval stop lever 34, the oval stop lever 34 is located on the right side of the pawl 32, the oval stop lever 34 is in contact with the pawl 32, the right side.
Example 4
A convenient-to-use examination bed for internal medicine is disclosed, as shown in figures 1-3, and comprises a base 1, a large support 2, a large connecting plate 3, a first large connecting shaft 4, a large supporting plate 5, a bed plate 6, a rectangular frame 7, a first lifting rod 8, an arc-shaped plate 9, a triangular plate 10, a second lifting rod 11, a contact plate 12, a long connecting plate 13, a large nut 14, a second large connecting shaft 15, a large screw rod 16, a large bearing seat 17, a left bearing 18 and a rotating wheel 19, wherein the top of the base 1 is provided with a long groove 101, the top of the base 1 is connected with the large support 2, the large support 2 is positioned at the left side of the long groove 101, the large connecting plate 3 is positioned above the base 1, the bottom of the large connecting plate 3 is provided with a large swinging groove 301, the upper end of the large support 2 is positioned in the large swinging groove 301, the large support 2 is in contact with the large connecting plate 3, the upper end of the large support 2 is connected with the first, the top of the large connecting plate 3 is provided with a first long rectangular groove 302, the first long rectangular groove 302 is positioned above the large swing groove 301, the upper end of the large connecting plate 3 is connected with the left end of the bottom of the large supporting plate 5, the left end of the large supporting plate 5 is provided with a first large rectangular groove 501, the first large rectangular groove 501 is positioned right above the first long rectangular groove 302, the top of the large supporting plate 5 is connected with a bed plate 6, the bed plate 6 is positioned in a rectangular frame 7, the rectangular frame 7 is in sliding fit with the bed plate 6, the bottom of the rectangular frame 7 is contacted with the top of the large supporting plate 5, the left end of the bottom of the rectangular frame 7 is connected with a first lifting rod 8, the first lifting rod 8 is in the first long rectangular groove 302 and the first large rectangular groove 501 in a sliding manner, the left side wall of the first lifting rod 8 is uniformly provided with a plurality of first ratchet grooves 81, the right end of the bottom of the large supporting plate 5 is connected with an arc plate 9, the, the right end of the large supporting plate 5 is provided with a second large rectangular groove 502, the second large rectangular groove 502 is positioned right above the second long rectangular groove 901, the left side of the arc-shaped plate 9 is connected with a triangular plate 10, the top of the triangular plate 10 is connected with the bottom of the large supporting plate 5, the right end of the bottom of the rectangular frame 7 is connected with a second lifting rod 11, the second lifting rod 11 is slidably positioned in the second long rectangular groove 901 and the second large rectangular groove 502, the right side wall of the second lifting rod 11 is uniformly provided with a plurality of second ratchet grooves 111, the contact plate 12 is positioned below the triangular plate 10, the contact plate 12 is contacted with the triangular plate 10, the top of the contact plate 12 is matched with the bottom of the triangular plate 10, the lower end of the contact plate 12 is positioned in the long groove 101, the contact plate 12 is slidably matched with the long groove 101, the left side of the contact plate 12 is connected with a long connecting plate 13, the large nut 14 is positioned behind the long connecting plate 13, the front side, the second large connecting shaft 15 is connected with the left end of the long connecting plate 13, the large nut 14 is sleeved on the large screw mandrel 16, the large nut 14 is in threaded connection with the large screw mandrel 16, the right end of the large screw mandrel 16 is in interference connection with a bearing in the large bearing seat 17, the bottom of the large bearing seat 17 is connected with the top of the base 1, the large bearing seat 17 is positioned behind the long groove 101, the left end of the large screw mandrel 16 is in interference connection with the left bearing 18, the left bearing 18 is embedded in the right side wall of the large bracket 2, the rotating wheel 19 is fixedly sleeved on the left end of the large screw mandrel 16, the left end of the large supporting plate 5 is provided with a first movable groove 503 and a first small groove 504, the first movable groove 503 is positioned on the left side of the first large rectangular groove 501, the first movable groove 503 is communicated with the first large rectangular groove 501, the first small groove 504 is positioned above the first movable groove 503, the first small groove 504 is communicated with the first movable groove 503, the right end of the large supporting plate 5 is provided with a second movable groove 505 and, the second movable groove 505 is positioned at the right side of the second large rectangular groove 502, the second movable groove 505 is communicated with the second large rectangular groove 502, the second small groove 506 is positioned above the second movable groove 505, and the second small groove 506 is communicated with the second movable groove 505.
The lifting device also comprises a first big spring 21, a first ratchet block 22, a first small spring 23, a first lifting lever 24, a second big spring 25, a second ratchet block 26, a second small spring 27 and a second lifting lever 28, wherein the lower end of the first lifting rod 8 is connected with the first big spring 21, the first big spring 21 is positioned in a first long rectangular groove 302, the lower end of the first big spring 21 is connected with a big connecting plate 3, the first ratchet block 22 is slidably positioned in a first movable groove 503, the right end of the first ratchet block 22 is positioned in the first ratchet groove 81, the first ratchet block 22 is matched with the first ratchet groove 81, the left end of the first ratchet block 22 is connected with the first small spring 23, the first small spring 23 is positioned in the first movable groove 503, the left end of the first small spring 23 is connected with a big supporting plate 5, the top of the first ratchet block 22 is connected with the first lifting lever 24, the first lifting lever 24 is slidably positioned in a first small groove 504, the lower end of the second lifting rod 11 is connected with the second big spring 25, the second large spring 25 is located in the second long rectangular groove 901, the lower end of the second large spring 25 is connected with the arc-shaped plate 9, the second ratchet block 26 is slidably located in the second movable groove 505, the left end of the second ratchet block 26 is located in the second ratchet groove 111, the second ratchet block 26 is matched with the second ratchet groove 111, the right end of the second ratchet block 26 is connected with the second small spring 27, the second small spring 27 is located in the second movable groove 505, the right end of the second small spring 27 is connected with the large support plate 5, the top of the second ratchet block 26 is connected with the second shift lever 28, and the second shift lever 28 is slidably located in the second small concave groove 506.
The connecting device is characterized by further comprising a ratchet wheel 31, a pawl 32, a small connecting shaft 33, an oval stop lever 34 and a tension spring 35, wherein the front end of the first large connecting shaft 4 is connected with the ratchet wheel 31, the ratchet wheel 31 is located in front of the large connecting plate 3, the pawl 32 is located on the left side of the ratchet wheel 31, the pawl 32 is matched with the ratchet wheel 31, the lower end of the pawl 32 is connected with the small connecting shaft 33, the rear end of the small connecting shaft 33 is rotatably connected with the front side wall of the large connecting plate 3, the front side wall of the large connecting plate 3 is connected with the oval stop lever 34, the oval stop lever 34 is located on the right side of the pawl 32, the oval stop lever 34 is in contact with the pawl 32, the right side.
The locking mechanism further comprises a small swinging plate 41, a semicircular clamping block 42 and a plate spring 43, wherein the bottom of the pawl 32 is connected with the small swinging plate 41, the small swinging plate 41 is provided with a wedge-shaped hole 411, the bottom of the oval blocking rod 34 is connected with the plate spring 43, the lower end of the plate spring 43 is connected with the semicircular clamping block 42, the semicircular clamping block 42 is located in the wedge-shaped hole 411, and the semicircular clamping block 42 is in contact with the small swinging plate 41.
In the invention, firstly, the rectangular frame 7 is taken down from the bed board 6, then the bed sheet is paved on the bed board 6, then the rectangular frame 7 is sleeved back on the bed board 6, the bed sheet is pressed by the rectangular frame 7, thereby preventing the bed sheet from being disordered when a patient goes up and down the bed board 6, when the patient is difficult to go up and down the bed board 6, the rotating wheel 19 can be rotated, the rotating wheel 19 drives the big screw rod 16 to rotate, the big screw rod 16 drives the big nut 14 to move, the big nut 14 drives the long connecting plate 13 and the contact plate 12 to move through the second big connecting shaft 15, when the contact plate 12 moves leftwards, the triangular plate 10 can drive the arc-shaped plate 9, the big supporting plate 5, the bed board 6 and the rectangular frame 7 to move downwards together, the big connecting plate 3 and the first big connecting shaft 4 provide swing assistance for the big supporting plate 5, thereby reducing the height of the bed board, is convenient to use.
At this time, the first ratchet block 22 and the second ratchet block 26 are respectively clamped in the first ratchet groove 81 and the second ratchet groove 111, so that the rectangular frame 7 can be fixed more firmly, the sheet is tightly pressed through the rectangular frame 7, the fixing effect is better, when the sheet needs to be taken down, the first shift lever 24 and the second shift lever 28 can be shifted outwards, the first ratchet block 22 and the second ratchet block 26 are respectively shifted out from the first ratchet groove 81 and the second ratchet groove 111, and at this time, under the elastic force action of the first large spring 21 and the second large spring 25, the first lifting rod 8 and the second lifting rod 11 simultaneously drive the rectangular frame 7 to move upwards, so that medical staff can take the sheet on the bed plate 6 away conveniently.
When pawl 32 card was on ratchet 31, can prevent ratchet 31 anticlockwise rotation to carry on spacingly to big connecting plate 3 and first big connecting axle 4, safe and reliable more when needs carry out anticlockwise swing to ratchet 31 and big connecting plate 3, can pull open pawl 32 from ratchet 31, thereby can swing convenient to use safety to big connecting plate 3.
When the medical staff moves the pawl 32 away from the ratchet wheel 31, the small swinging plate 41 swings rightwards, the semicircular clamping block 42 penetrates through the wedge-shaped hole 411 and hooks the small swinging plate 41, so that the pawl 32 can be fixed, the medical staff can conveniently carry out other operations by using hands, and the use is more convenient.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.