CN109966059B - Stretcher special for stairs in medical field - Google Patents
Stretcher special for stairs in medical field Download PDFInfo
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- CN109966059B CN109966059B CN201910304224.4A CN201910304224A CN109966059B CN 109966059 B CN109966059 B CN 109966059B CN 201910304224 A CN201910304224 A CN 201910304224A CN 109966059 B CN109966059 B CN 109966059B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
- A61G1/048—Handles
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Invalid Beds And Related Equipment (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention belongs to the technical field of stretchers, and particularly relates to a stretcher special for stairs in the medical field, which comprises a stretcher fixing plate, a first stretcher side plate, a second stretcher side plate, a first adjusting mechanism, a second adjusting mechanism and the like, wherein the swinging plates in the first adjusting mechanism and the second adjusting mechanism are adjusted to adapt to different conditions: firstly, when the stretcher transports a patient on a horizontal road, the swinging plate is in a horizontal state, and the same effect as that of a common simple stretcher is achieved. Secondly, when the stretcher transports a patient between the stairs, the four swing plates can be in a vertical state through adjustment, the two handles on one side of the stretcher are positioned on the upper side of the stretcher, and the two handles on the other side of the stretcher are positioned on the lower side of the stretcher, so that the stretcher can adapt to the fluctuation in the transportation process between the stairs, the cloth of the stretcher is in a horizontal state as much as possible, and the patient is prevented from sliding down from the stretcher to cause secondary injury.
Description
Technical Field
The invention belongs to the technical field of stretchers, and particularly relates to a stretcher special for stairs in the medical field.
Background
Conventional simple medical stretchers are currently in widespread use in the context of transporting patients. For a high-rise building with an elevator in a city, the common medical stretcher can convey patients by utilizing different floors of the elevator; because the elevator is stable to move up and down, when a patient is transported in a high-rise building with the elevator, the common medical stretcher can be fully competent for the transportation task; however, in the case of a small high-rise building without an elevator, once a patient is injured and must be transported by a common medical stretcher, the common medical stretcher is prone to tilt during the patient transportation process in a staircase, and the patient on the stretcher may slip off the stretcher to cause secondary injury. In order to ensure that the stretcher can be always in a horizontal state when the stretcher is used for transporting patients in a staircase and prevent the patients from sliding off the stretcher, the medical stretcher for transporting the patients in the staircase needs to be designed.
The invention designs a stretcher special for stairs in the medical field, which solves the problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention discloses a stretcher special for stairs in the medical field, which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention usually place when using, and are only used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The utility model provides a special stretcher of stair that medical field used which characterized in that: the stretcher comprises stretcher fixing plates, stretcher cloth, a first stretcher side plate, a second stretcher side plate, a first adjusting mechanism, a second adjusting mechanism, a sliding groove, a third guide groove, an unlocking plate sliding groove and a second guide groove, wherein the stretcher cloth is arranged between the two stretcher fixing plates; the first stretcher side plate and the second stretcher side plate are respectively arranged at two ends of the stretcher fixing plate.
The structure and the mounting structure of first stretcher curb plate and second stretcher curb plate are the same, to first stretcher curb plate: the side surface of the first stretcher side plate, which is far away from the stretcher cloth, is symmetrically provided with two sliding grooves; two third guide grooves are symmetrically formed in two sides of each sliding groove; two unlocking plate sliding grooves are symmetrically formed in the end faces of the two ends of the first stretcher side plate; each unlocking plate sliding groove is communicated with the corresponding sliding groove; a second guide groove is formed in the side face of each unlocking plate sliding groove; the first adjusting mechanism and the second adjusting mechanism are respectively installed in the two sliding grooves.
The first adjusting mechanism in the first stretcher side plate is opposite to the first adjusting mechanism in the second stretcher side plate; the second adjustment mechanism in the first stretcher side plate is opposite the second adjustment mechanism in the second stretcher side plate.
The first and second adjustment mechanisms are identical.
The first adjusting mechanism comprises a sliding block, a third guide block, a second fixed block, a limiting block spring, a limiting block sliding groove, an unlocking plate, a second guide block, a second spring, a limiting groove, a ring sleeve, a limiting disc, a limiting strip-shaped plate, a first fixed block, a handle, a swinging plate, a fixed rod, a containing groove, a short inclined plane, a long inclined plane, a fillet, a limiting tooth, a first guide block, a first spring, a first guide groove and a sliding through groove, wherein the sliding block is arranged in the corresponding sliding groove in a sliding fit manner; two third guide blocks are symmetrically arranged on two sides of the sliding block; the two third guide blocks are respectively arranged in the two third guide grooves in a sliding fit manner; one end of the fixed rod is arranged on the sliding block, and the other end of the fixed rod is provided with a limiting disc; the fixed rod is vertical to the first stretcher side plate; a plurality of limiting teeth are uniformly distributed on the outer circular surface of the limiting disc along the circumferential direction; the ring sleeve is nested on the fixed rod and is positioned between the sliding block and the limiting disc; one end of the swinging plate is arranged on the outer circular surface of the ring sleeve; the handle and the first fixed block are both arranged on the side surface of the swinging plate far away from the sliding block; the handle is positioned at one end of the swinging plate far away from the ring sleeve, and the first fixed block is positioned between the limiting disc and the handle; a through sliding through groove is formed in the first fixing block; two first guide grooves are symmetrically formed in the two sides of the sliding through groove; the limiting strip-shaped plate is arranged in the sliding through groove in a sliding fit mode, and two ends of the limiting strip-shaped plate extend out of the sliding through groove; two first guide blocks are symmetrically arranged on two sides of the limiting strip-shaped plate; the two first guide blocks are respectively positioned in the two first guide grooves; the first guide block slides in the first guide groove; one ends of the two first springs are respectively arranged on the two first guide blocks, and the other ends of the two first springs are respectively arranged on the groove surfaces of the two first guide grooves; the two first springs are respectively positioned in the two first guide grooves; one end of the limiting strip-shaped plate is matched with the limiting teeth on the limiting disc.
The side surface of the sliding block is provided with an accommodating groove; a limiting block sliding groove is formed in the top groove surface of the accommodating groove; the limiting block is slidably arranged in the limiting block sliding groove; one end of the limiting block spring is arranged on the limiting block, and the other end of the limiting block spring is arranged on the groove surface of the limiting block sliding groove; one end of the limiting block, which is far away from the limiting block spring, is provided with a short inclined plane and a long inclined plane; a second fixed block is arranged on the side groove surface of the sliding groove with the unlocking plate sliding groove; a limiting groove is formed in the upper plate surface of the second fixing block; the unlocking plate is arranged in the unlocking plate sliding groove in a sliding fit mode, and two ends of the unlocking plate extend out of the unlocking plate sliding groove; the second guide block is arranged on the unlocking plate; the second guide block is positioned in the second guide groove; the second guide block slides in the second guide groove; one end of the second spring is arranged on the second guide block, and the other end of the second spring is arranged on the groove surface of the second guide groove; the second spring is located in the second guide groove.
For the first adjustment structure: the limiting block is matched with a limiting groove on the second fixing block; the second fixed block is matched with the accommodating groove; one end of the unlocking plate is matched with the long inclined plane on the limiting block.
As a further improvement of the technology, the side surfaces of the limiting teeth are parallel to the side surfaces of the adjacent limiting teeth. Such design lies in, when the one end of spacing strip template was located between two adjacent spacing tooth, the both sides of spacing strip template and the side of two spacing tooth laminate completely, and two spacing tooth can be spacing completely with spacing strip template and can not produce the side and move.
As a further improvement of the present technology, the first spring is a compression spring; when the first spring is uncompressed, one end of the limiting strip plate is positioned between two adjacent limiting teeth on the limiting circular disc.
As a further improvement of the technology, the maximum vertical height of the short inclined plane on the limiting block is S1, and the maximum vertical height of the long inclined plane is S2; the depth of the limiting groove on the second fixing block is S3; s2 > S3 > S1. Such design lies in, when the stopper entered into the spacing groove, because the biggest vertical height on the short inclined plane on the stopper is greater than the groove depth of spacing groove on the second fixed block, so the slider can't drive the stopper and remove to the direction of keeping away from the second fixed block, and then the slider also can't remove. The maximum vertical height of the long inclined plane on the limiting block is larger than the groove depth of the limiting groove on the second fixing block, so that when one end of the unlocking plate with a round corner can extrude the long inclined plane on the limiting block, the limiting block moves towards the direction of the limiting block spring under the extrusion of the unlocking plate, and the limiting block spring is compressed; when the short inclined plane of the limiting block also stretches out of the limiting groove, the sliding block can drive the limiting block to move towards the direction far away from the second fixing block, and the limiting block is separated from the limiting groove. The limiting block spring has the effect that the limiting block can move and reset under the reset action of the limiting block spring.
As a further improvement of the present technology, the unlocking plate has a rounded corner at one end of the slide groove. Due to the action of the curved surface of the round angle, the end of the unlocking plate with the round angle can more easily extrude the long inclined plane on the limiting block; in addition, under the high-frequency extrusion, the fillet can also play a role in reducing the abrasion.
As a further improvement of the technology, the limiting block spring is a compression spring; when the limiting block spring is not compressed, one end of the limiting block with the long inclined plane extends out of the limiting block sliding groove.
The working principle of the first adjusting mechanism and the working principle of the second adjusting mechanism are the same, and for the first adjusting mechanism: the limiting disc is fixed on the fixed rod; spacing strip template, first guide block, first spring and the design of first fixed block lie in: firstly, when the first spring is uncompressed, one end of the limiting strip-shaped plate is positioned between two adjacent limiting teeth on the limiting disc, and the limiting strip-shaped plate is limited, so that the swinging plate cannot swing; secondly, when spacing bar type board when the direction of keeping away from spacing disc removes under the external force pulling, first guide block follows spacing bar type board motion, and first spring is compressed, breaks away from between two adjacent spacing tooth from the one end of spacing bar type board, and spacing bar type board no longer by spacingly, so the user can make the swing plate swing around the axis of dead lever through the handle, and the ring cover is rotatory around the axis of dead lever under the drive of swing plate. The effect of first spring is, under the power that resets of first spring, first guide block drives spacing template and removes and resets, and the one end reinsertion of spacing template is between two adjacent spacing teeth, and spacing template is spacing once more. The limiting block is matched with a limiting groove in the second fixing block, the second fixing block is matched with the accommodating groove, the second fixing block can relatively enter the sliding accommodating groove in the process that the sliding block moves towards the direction of the second fixing block, the second fixing block extrudes the long inclined plane on the limiting block, the limiting block moves towards the direction of the limiting block spring, and the limiting block spring is compressed; along with the continuous removal of slider, when the stopper was located the position of spacing groove, under the restoring force of stopper spring, the stopper inserted the spacing groove fast, and the groove face of holding tank is touched to the second fixed block this moment, and the slider can't continue to move to the second fixed block direction, and the stopper is spacing by the spacing groove, and the slider also can't move to the direction of keeping away from the second fixed block. The sliding block is symmetrically provided with two third guide blocks, so that when the sliding block slides in the sliding groove, the third guide blocks slide in the third guide grooves, and the sliding block can stably slide in the sliding groove; in addition, the third guide block is positioned in the third guide groove, so that the slide block cannot be separated from the sliding groove. The unlocking plate, the second spring and the second guide block are designed in such a way that one end of the unlocking plate, which is provided with a round corner, extrudes the long inclined surface on the limiting block under the action of external force, and then the limiting block can be unlocked and limited; when the unlocking plate moves towards the direction of the limiting block, the second guide block moves along with the unlocking plate, and the second spring is compressed; when the unlocking plate is not acted by external force any more, the second guide block drives the unlocking plate to move and reset under the reset action of the second spring.
When the stretcher of the invention conveys patients on a flat road surface, the limiting block of the first adjusting mechanism in the first stretcher side plate does not generate limiting action with the second fixing block in the first adjusting mechanism, and the limiting block of the second adjusting mechanism in the first stretcher side plate does not generate limiting action with the second fixing block in the second adjusting mechanism; the limiting block of the first adjusting mechanism in the second stretcher side plate does not produce limiting action with the second fixing block in the first adjusting mechanism, and the limiting block of the second adjusting mechanism in the second stretcher side plate does not produce limiting action with the second fixing block in the second adjusting mechanism. When the stretcher of the invention conveys patients on a flat road surface, the swinging plates in all the first adjusting mechanisms are in horizontal positions, one end of the limiting strip-shaped plate is positioned between two adjacent limiting teeth of the limiting disc, and the state of the swinging plates is limited; and the swinging plates in all the second adjusting mechanisms are in horizontal positions, one end of the limiting strip plate is positioned between two adjacent limiting teeth of the limiting disc, and the states of the swinging plates are limited. The user can lift the stretcher by the handle, and all the stretchers can stably convey patients in a horizontal mode because all the swinging plates are in the horizontal position. The user can be through adjusting the distance of two sliders in first stretcher curb plate or the second stretcher curb plate for the distance between the handle also can be adjusted relatively, and the person of facilitating the use exerts oneself better and lifts the stretcher.
When the stretcher of the invention transports patients between stairs, users cooperatively pull the limiting strip-shaped plates in all the first adjusting mechanisms and the second adjusting mechanisms to move towards the direction far away from the limiting disc, the first guide block moves along the limiting strip-shaped plates, the first spring is compressed, one end of each limiting strip-shaped plate is separated from the space between two adjacent limiting teeth, the limiting strip-shaped plates are not limited any more, and then the users can enable the swinging plates to swing around the axis of the fixed rod through the handles, and the ring sleeve rotates around the axis of the fixed rod under the driving of the swinging plates. A user positioned on the upper side of the stair swings the swinging plates in the first adjusting mechanism and the second adjusting mechanism to be in a vertical state through the handle, and the handle is positioned on the upper side of the stretcher cloth; the user who is located the stair downside swings the pendulum plate in the first adjustment mechanism and the second adjustment mechanism of this department to vertical state through the handle, and the handle is located the downside of stretcher cloth. Subsequently, the user cooperates the spacing template of release, so under the power that resets of first spring, first guide block drives spacing template removal and resets, and the one end reinsertion of spacing template is spacing between two adjacent spacing teeth, and spacing template is spacing once more. When all the limiting strip plates are limited, the states of all the swinging plates are locked; therefore, the stretcher is prevented from being inclined due to the swinging of the swinging plate when the stretcher is lifted, so that a patient can slide down from the stretcher to cause secondary injury.
Finally, wherein the user pulls the handle to make the limiting groove of stopper and second fixed block produce limiting displacement in the slider to first adjustment mechanism in the first stretcher curb plate is the example: a user pulls the handle to move towards the direction of the second fixed block, and the handle drives the sliding block to move towards the direction of the second fixed block through the swinging plate, the ring sleeve and the fixed rod; when the sliding block moves towards the direction of the second fixed block, the second fixed block relatively enters the sliding accommodating groove, the second fixed block extrudes the long inclined plane on the limiting block, the limiting block moves towards the direction of the limiting block spring, and the limiting block spring is compressed; along with the continuous removal of slider, when the stopper was located the position of spacing groove, under the restoring force of stopper spring, the stopper inserted the spacing groove fast, and the groove face of holding tank is touched to the second fixed block this moment, and the slider can't continue to move to the second fixed block direction, and the stopper is spacing by the spacing groove, and the slider also can't move to the direction of keeping away from the second fixed block. Finally, under the cooperative fit of the users, the sliding blocks in the first adjusting mechanism and the second adjusting mechanism in the second stretcher side plate are both in a limited state. The stretcher has the advantages that all the slide blocks are limited: because the slider is spacing, so the slider can not slide in the sliding tray, and then the user is when lifting the stretcher with the handle, and the handle can not produce lateral shifting, has guaranteed that the stretcher can be smoothly lifted better and can not produce the slope in the transportation process, has protected the patient more. When the stretcher is conveyed between the stairs, the stretcher can realize that the four swinging plates are all in a vertical state, the two handles at one side of the stretcher are positioned at the upper side of the stretcher, and the two handles at the other side of the stretcher are positioned at the lower side of the stretcher, so that the stretcher can adapt to the fluctuation of the height in the conveying process between the stairs, the cloth of the stretcher is in a horizontal state as much as possible, and the secondary injury caused by the fact that a patient slides down from the stretcher is prevented.
When the stretcher of the invention does not transport patients between stairs any more, users press the unlocking plates at two sides by cooperating with each other, the working procedures of all the unlocking plates are the same, taking the unlocking plate of the first adjusting mechanism in the first stretcher side plate as an example: the unlocking plate enables one end of the unlocking plate with a round corner to extrude the long inclined plane on the limiting block under the action of external force, when the unlocking plate moves towards the direction of the limiting block, the second guide block moves along with the unlocking plate, and the second spring is compressed; the limiting block moves towards the limiting block spring direction under the extrusion of the unlocking plate, and the limiting block spring is compressed; when the short inclined plane of stopper also stretched out the spacing groove, the slider just can drive the stopper and remove to the direction of keeping away from the second fixed block, and the stopper breaks away from the spacing groove, and finally the slider no longer is spacing. After the second fixed block breaks away from the holding tank of slider, under the effect that resets of stopper spring, the stopper can remove and reset. When the unlocking plate is not acted by external force any more, the second guide block drives the unlocking plate to move and reset under the reset action of the second spring. Finally, after all the sliding blocks are separated from the limit, users can adjust the swinging plate to be in a horizontal state again.
Compared with the traditional stretcher technology, the swinging plates in the first adjusting mechanism and the second adjusting mechanism can be adjusted to adapt to different conditions: first, when the stretcher transported the patient on the horizontal road, the balance weight was in the horizontality, and the user can be through adjusting the distance of two sliders in first stretcher curb plate or the second stretcher curb plate for the distance between the handle also can be adjusted relatively, and the person of facilitating the use exerts oneself better and lifts the stretcher. Secondly, when the stretcher transports a patient between the stairs, the four swing plates can be in a vertical state through adjustment, the two handles on one side of the stretcher are positioned on the upper side of the stretcher, and the two handles on the other side of the stretcher are positioned on the lower side of the stretcher, so that the stretcher can adapt to the fluctuation in the transportation process between the stairs, the cloth of the stretcher is in a horizontal state as much as possible, and the patient is prevented from sliding down from the stretcher to cause secondary injury. The invention has simple structure and better use effect.
Drawings
Fig. 1 is the overall view of the stretcher.
Fig. 2 is a schematic view of a stretcher cloth installation.
Fig. 3 is a schematic sectional front view of the first and second adjustment mechanisms installed.
Fig. 4 is an enlarged sectional front view schematically showing the installation of the first adjustment mechanism.
Fig. 5 is a schematic view of a first adjustment mechanism.
FIG. 6 is a schematic cross-sectional view of a slider.
Fig. 7 is a schematic structural diagram of a limiting block.
Fig. 8 is a schematic view of the unlocking plate structure.
Fig. 9 is a schematic view of the handle mounting.
Fig. 10 is a schematic sectional front view of a mounting bar type plate.
Fig. 11 is a sectional view of the first fixing block.
Fig. 12 is a schematic view of a first guide block installation.
Fig. 13 is a schematic view of a first stretcher side panel configuration.
Fig. 14 is an enlarged partial cross-sectional view of the first stretcher side panel.
Number designation in the figures: 1. fixing a stretcher plate; 2. a stretcher cloth; 3. a first stretcher side panel; 4. a second stretcher side panel; 5. a first adjustment mechanism; 6. a second adjustment mechanism; 7. a sliding groove; 8. a third guide groove; 9. a slider; 10. a third guide block; 12. a second fixed block; 13. a limiting block; 14. a stopper spring; 15. a limiting block chute; 16. an unlocking plate; 17. a second guide block; 18. a second spring; 19. a second guide groove; 20. a limiting groove; 21. sleeving a ring; 22. a limiting disc; 23. a limiting strip plate; 24. a first fixed block; 25. a handle; 26. a swinging plate; 27. fixing the rod; 28. accommodating grooves; 29. a short bevel; 30. a long inclined plane; 31. round corners; 32. limiting teeth; 33. a first guide block; 34. a first spring; 35. a first guide groove; 36. a sliding through groove; 37. unlocking plate sliding groove.
Detailed Description
As shown in fig. 1 and 2, the stretcher comprises a stretcher fixing plate 1, a stretcher cloth 2, a first stretcher side plate 3, a second stretcher side plate 4, a first adjusting mechanism 5, a second adjusting mechanism 6, a sliding groove 7, a third guide groove 8, an unlocking plate sliding groove 37 and a second guide groove 19, wherein the stretcher cloth 2 is arranged between the two stretcher fixing plates 1 as shown in fig. 2; as shown in fig. 1, a first stretcher side plate 3 and a second stretcher side plate 4 are respectively installed at both ends of the stretcher fixing plate 1.
The structure and the mounted structure of the first stretcher side plate 3 and the second stretcher side plate 4 are the same, to the first stretcher side plate 3: as shown in fig. 13 and 14, the first stretcher side plate 3 is symmetrically provided with two sliding grooves 7 on the side far away from the stretcher cloth 2; two third guide grooves 8 are symmetrically formed in two sides of each sliding groove 7; as shown in fig. 14, two unlocking plate sliding grooves 37 are symmetrically formed on both end surfaces of the first stretcher side plate 3; each unlocking plate slide slot 37 communicates with a corresponding slide slot 7; a second guide groove 19 is formed on the side surface of each unlocking plate sliding groove 37; as shown in fig. 3, the first adjustment mechanism 5 and the second adjustment mechanism 6 are respectively installed in the two slide grooves 7.
As shown in fig. 1, the first adjustment mechanism 5 in the first stretcher side plate 3 and the first adjustment mechanism 5 in the second stretcher side plate 4 are opposed; the second adjustment mechanism 6 in the first stretcher side plate 3 is opposed to the second adjustment mechanism 6 in the second stretcher side plate 4.
The first adjustment mechanism 5 and the second adjustment mechanism 6 are identical.
As shown in fig. 4, 5 and 6, the first adjusting mechanism 5 includes a sliding block 9, a third guide block 10, a second fixing block 12, a limiting block 13, a limiting block spring 14, a limiting block sliding slot 15, an unlocking plate 16, a second guide block 17, a second spring 18, a limiting slot 20, a ring sleeve 21, a limiting disc 22, a limiting strip-shaped plate 23, a first fixing block 24, a handle 25, a swinging plate 26, a fixing rod 27, a receiving slot 28, a short inclined plane 29, a long inclined plane 30, a round corner 31, a limiting tooth 32, a first guide block 33, a first spring 34, a first guide slot 35 and a sliding through slot 36, as shown in fig. 3, wherein the sliding block 9 is installed in the corresponding sliding slot 7 in a sliding fit manner; as shown in fig. 4 and 5, two third guide blocks 10 are symmetrically mounted on two sides of the sliding block 9; the two third guide blocks 10 are respectively installed in the two third guide grooves 8 in a sliding fit manner; as shown in fig. 5 and 6, one end of the fixing rod 27 is mounted on the sliding block 9, and the other end is mounted with the limiting disc 22; the fixing rod 27 is perpendicular to the first stretcher side plate 3; as shown in fig. 10, a plurality of limiting teeth 32 are uniformly distributed on the outer circumferential surface of the limiting disc 22 along the circumferential direction; as shown in fig. 5 and 9, the ring sleeve 21 is nested on the fixing rod 27, and the ring sleeve 21 is positioned between the sliding block 9 and the limiting disk 22; one end of the swing plate 26 is mounted on the outer circular surface of the ring sleeve 21; the handle 25 and the first fixing block 24 are both arranged on the side surface of the swinging plate 26 far away from the sliding block 9; the handle 25 is positioned at one end of the swinging plate 26 far away from the ring sleeve 21, and the first fixed block 24 is positioned between the limiting disc 22 and the handle 25; as shown in fig. 11, a through sliding through groove 36 is opened in the first fixing block 24; two first guide grooves 35 are symmetrically formed on two sides of the sliding through groove 36; as shown in fig. 10 and 12, the limiting strip-shaped plate 23 is installed in the sliding through groove 36 in a sliding fit manner, and both ends of the limiting strip-shaped plate 23 extend out of the sliding through groove 36; two first guide blocks 33 are symmetrically arranged on two sides of the limiting strip plate 23; the two first guide blocks 33 are respectively positioned in the two first guide grooves 35; the first guide block 33 slides in the first guide groove 35; one ends of the two first springs 34 are respectively installed on the two first guide blocks 33, and the other ends are respectively installed on the groove surfaces of the two first guide grooves 35; the two first springs 34 are respectively positioned in the two first guide grooves 35; one end of the limiting strip plate 23 is matched with the limiting teeth 32 on the limiting disc 22.
As shown in fig. 6, the side surface of the slider 9 is provided with a receiving groove 28; the top groove surface of the accommodating groove 28 is provided with a limiting block sliding groove 15; as shown in fig. 4 and 7, the limiting block 13 is slidably mounted in the limiting block sliding groove 15; one end of a limiting block spring 14 is arranged on the limiting block 13, and the other end of the limiting block spring is arranged on the groove surface of the limiting block sliding groove 15; one end of the limiting block 13, which is far away from the limiting block spring 14, is provided with a short inclined surface 29 and a long inclined surface 30; as shown in fig. 4, a second fixing block 12 is mounted on the side groove surface of the sliding groove 7 having the unlocking plate sliding groove 37; as shown in fig. 9, a limiting groove 20 is formed on the upper plate surface of the second fixing block 12; as shown in fig. 4 and 8, the unlocking plate 16 is mounted in the unlocking plate slide groove 37 in a sliding fit manner, and both ends of the unlocking plate 16 extend out of the unlocking plate slide groove 37; the second guide block 17 is mounted on the unlocking plate 16; the second guide block 17 is positioned in the second guide groove 19; the second guide block 17 slides in the second guide groove 19; one end of a second spring 18 is arranged on the second guide block 17, and the other end is arranged on the groove surface of the second guide groove 19; the second spring 18 is located in the second guide groove 19.
As shown in fig. 4, for the first adjustment structure: the limiting block 13 is matched with a limiting groove 20 on the second fixing block 12; the second fixing block 12 is matched with the accommodating groove 28; one end of the unlocking plate 16 is matched with the long inclined surface 30 on the limiting block 13.
As shown in fig. 10, the side surfaces of the stopper teeth 32 are parallel to the side surfaces of the adjacent stopper teeth 32. Such design lies in that, when the one end of spacing strip template 23 was located between two adjacent spacing tooth 32, the both sides of spacing strip template 23 and the side of two spacing tooth 32 laminate completely, and two spacing tooth 32 can be with spacing strip template 23 complete spacing and can not produce the side and move.
As shown in fig. 10, the first spring 34 is a compression spring; when the first spring 34 is uncompressed, one end of the limiting strip plate 23 is positioned between two adjacent limiting teeth 32 on the limiting disk 22.
The maximum vertical height of the short inclined plane 29 on the limiting block 13 is S1, and the maximum vertical height of the long inclined plane 30 is S2; the depth of the limiting groove 20 on the second fixing block 12 is S3; s2 > S3 > S1. Such design lies in, when stopper 13 entered into spacing groove 20, because the biggest vertical height of the last short inclined plane 29 of stopper 13 is greater than the groove depth of spacing groove 20 on second fixed block 12, so slider 9 can't drive stopper 13 and remove to the direction of keeping away from second fixed block 12, and then slider 9 also can't remove. The maximum vertical height of the long inclined surface 30 on the limiting block 13 is greater than the depth of the limiting groove 20 on the second fixing block 12, so that when one end of the unlocking plate 16 with the round angle 31 can extrude the long inclined surface 30 on the limiting block 13, the limiting block 13 moves towards the limiting block spring 14 under the extrusion of the unlocking plate 16, and the limiting block spring 14 is compressed; when the short inclined surface 29 of the limiting block 13 also extends out of the limiting groove 20, the sliding block 9 can drive the limiting block 13 to move in the direction away from the second fixing block 12, and the limiting block 13 is separated from the limiting groove 20. The stopper spring 14 is used for moving and resetting the stopper 13 under the resetting action of the stopper spring 14.
As shown in fig. 4 and 8, the unlocking plate 16 has a rounded corner 31 at one end of the slide groove 7. Due to the curved surface effect of the round corner 31, the end of the unlocking plate 16 with the round corner 31 can more easily press the long inclined surface 30 on the limiting block 13; in addition, the fillet 31 can also function to reduce wear at high frequency of extrusion.
As shown in fig. 4, the stopper spring 14 is a compression spring; when the stopper spring 14 is uncompressed, the end of the stopper 13 having the long inclined surface 30 extends out of the stopper slide groove 15.
The first adjusting mechanism 5 and the second adjusting mechanism 6 have the same working principle, and for the first adjusting mechanism 5: the limiting disc 22 is fixed on the fixing rod 27; the design of spacing strip template 23, first guide block 33, first spring 34 and first fixed block 24 lies in: firstly, when the first spring 34 is uncompressed, one end of the limiting strip plate 23 is positioned between two adjacent limiting teeth 32 on the limiting disc 22, and the limiting strip plate 23 is limited, so that the swinging plate 26 cannot swing; secondly, when the limiting strip-shaped plate 23 is pulled by external force to move in a direction away from the limiting disc 22, the first guide block 33 moves along with the limiting strip-shaped plate 23, the first spring 34 is compressed, one end of the limiting strip-shaped plate 23 is separated from between two adjacent limiting teeth 32, the limiting strip-shaped plate 23 is no longer limited, then a user can enable the swinging plate 26 to swing around the axis of the fixed rod 27 through the handle 25, and the ring sleeve 21 rotates around the axis of the fixed rod 27 under the driving of the swinging plate 26. The first spring 34 has the function that under the reset force of the first spring 34, the first guide block 33 drives the limiting strip plate 23 to move and reset, one end of the limiting strip plate 23 is inserted between two adjacent limiting teeth 32 again, and the limiting strip plate 23 is limited again. The limiting block 13 is matched with the limiting groove 20 on the second fixing block 12, the second fixing block 12 is matched with the accommodating groove 28, and the effect that when the sliding block 9 moves towards the direction of the second fixing block 12, the second fixing block 12 can relatively enter the sliding accommodating groove 28, the second fixing block 12 extrudes the long inclined plane 30 on the limiting block 13, the limiting block 13 moves towards the limiting block spring 14, and the limiting block spring 14 is compressed; along with the continuous removal of slider 9, when stopper 13 is located the position of spacing groove 20, under stopper spring 14's restoring force, stopper 13 inserts fast in spacing groove 20, and second fixed block 12 touches the groove surface of holding tank 28 this moment, and slider 9 can't continue to move in the direction of second fixed block 12 normal direction, and stopper 13 is spacing by spacing groove 20, and slider 9 also can't move to the direction of keeping away from second fixed block 12. Two third guide blocks 10 are symmetrically arranged on the sliding block 9, so that when the sliding block 9 slides in the sliding groove 7, the third guide blocks 10 slide the sliding block 9 in the third guide grooves 8, and the third guide blocks 10 can enable the sliding block 9 to stably slide in the sliding groove 7; in addition, since the third guide block 10 is located in the third guide groove 8, the slider 9 does not come off from the slide groove 7. The unlocking plate 16, the second spring 18 and the second guide block 17 are designed in such a way that one end of the unlocking plate 16, which is provided with a round angle 31, is extruded on the long inclined surface 30 on the limiting block 13 under the action of external force, and then the limiting block 13 can be unlocked and limited; when the unlocking plate 16 moves towards the direction of the limiting block 13, the second guide block 17 moves along with the unlocking plate 16, and the second spring 18 is compressed; when the unlocking plate 16 is no longer acted by external force, the second guide block 17 drives the unlocking plate 16 to move and reset under the reset action of the second spring 18.
The specific implementation mode is as follows: when the stretcher of the invention carries a patient on a flat road surface, the limiting block 13 of the first adjusting mechanism 5 in the first stretcher side plate 3 does not generate a limiting effect with the second fixing block 12 in the first adjusting mechanism 5, and the limiting block 13 of the second adjusting mechanism 6 in the first stretcher side plate 3 does not generate a limiting effect with the second fixing block 12 in the second adjusting mechanism 6; the limiting block 13 of the first adjusting mechanism 5 in the second stretcher side plate 4 does not produce a limiting effect with the second fixing block 12 in the first adjusting mechanism 5, and the limiting block 13 of the second adjusting mechanism 6 in the second stretcher side plate 4 does not produce a limiting effect with the second fixing block 12 in the second adjusting mechanism 6. When the stretcher of the invention transports patients on a flat road, the swinging plates 26 in all the first adjusting mechanisms 5 are in a horizontal position, one end of the limiting strip-shaped plate 23 is positioned between two adjacent limiting teeth 32 of the limiting disc 22, and the state of the swinging plates 26 is limited; all the swing plates 26 in the second adjusting mechanism 6 are in a horizontal position, one end of the limiting strip plate 23 is positioned between two adjacent limiting teeth 32 of the limiting disc 22, and the state of the swing plates 26 is limited. The user can lift the stretcher by the handle 25, and all the stretchers can smoothly carry the patient in a horizontal manner since all the swing plates 26 are in the horizontal position. The user can be through adjusting the distance of two sliders 9 in first stretcher curb plate 3 or the second stretcher curb plate 4 for the distance between handle 25 also can be adjusted relatively, and the person of facilitating the use exerts oneself better and lifts the stretcher.
When the stretcher of the invention transports patients between stairs, users cooperatively pull the limiting strip-shaped plates 23 in all the first adjusting mechanism 5 and the second adjusting mechanism 6 to move away from the limiting disc 22, the first guide block 33 moves along with the limiting strip-shaped plates 23, the first spring 34 is compressed, one end of each limiting strip-shaped plate 23 is separated from between two adjacent limiting teeth 32, the limiting strip-shaped plates 23 are not limited any more, then the users can enable the swinging plates 26 to swing around the axis of the fixed rod 27 through the handles 25, and the ring sleeves 21 rotate around the axis of the fixed rod 27 under the driving of the swinging plates 26. A user positioned at the upper side of the stairs swings the swinging plates 26 in the first adjusting mechanism 5 and the second adjusting mechanism 6 to be vertical through the handle 25, and the handle 25 is positioned at the upper side of the stretcher cloth 2; the user who is located at the lower side of the staircase swings the swing plates 26 of the first and second adjusting mechanisms 5 and 6 thereto to the vertical state by the handle 25, and the handle 25 is located at the lower side of the stretcher cloth 2. Subsequently, the users cooperate to release the limiting strip plate 23, so that under the restoring force of the first spring 34, the first guide block 33 drives the limiting strip plate 23 to move and restore, one end of the limiting strip plate 23 is inserted between two adjacent limiting teeth 32 again, and the limiting strip plate 23 is limited again. When all the limiting strip plates 23 are limited, the states of all the swinging plates 26 are locked; thus, the situation that when the stretcher is lifted, the swinging plate 26 swings to cause the stretcher to incline, so that a patient slides down from the stretcher to cause secondary injury is prevented.
Finally, wherein the user pulls the handle 25 to make the limiting block 13 in the sliding block 9 and the limiting groove 20 of the second fixing block 12 generate a limiting effect, taking the first adjusting mechanism 5 in the first stretcher side plate 3 as an example: a user pulls the handle 25 to move towards the direction of the second fixed block 12, and the handle 25 drives the sliding block 9 to move towards the direction of the second fixed block 12 through the swinging plate 26, the ring sleeve 21 and the fixed rod 27; when the sliding block 9 moves towards the direction of the second fixed block 12, the second fixed block 12 relatively enters the sliding accommodating groove 28, the second fixed block 12 presses the long inclined surface 30 on the limiting block 13, the limiting block 13 moves towards the direction of the limiting block spring 14, and the limiting block spring 14 is compressed; along with the continuous removal of slider 9, when stopper 13 is located the position of spacing groove 20, under stopper spring 14's restoring force, stopper 13 inserts fast in spacing groove 20, and second fixed block 12 touches the groove surface of holding tank 28 this moment, and slider 9 can't continue to move in the direction of second fixed block 12 normal direction, and stopper 13 is spacing by spacing groove 20, and slider 9 also can't move to the direction of keeping away from second fixed block 12. Finally, the first adjustment means 5 in the second stretcher side plate 4 and the slider 9 in the second adjustment means 6 are both in a restrained state in cooperation with the users. The stretcher of the invention has the advantages that all the slide blocks 9 are limited: because the sliding block 9 is limited, the sliding block 9 cannot slide in the sliding groove 7, and then when a user lifts the stretcher by using the handle 25, the handle 25 cannot move transversely, so that the stretcher can be stably lifted without inclination in the conveying process, and a patient is protected more. When the stretcher is transported between stairs, the stretcher can realize that the four swinging plates 26 are all in a vertical state, the two handles 25 on one side of the stretcher are positioned on the upper side of the stretcher, and the two handles 25 on the other side of the stretcher are positioned on the lower side of the stretcher, so that the stretcher can adapt to the fluctuation in the transportation process between the stairs, the stretcher cloth 2 is in a horizontal state as much as possible, and the patient is prevented from sliding down from the stretcher to cause secondary injury.
When the stretcher of the invention is not used for transporting patients between stairs, users press the unlocking plates 16 at two sides by cooperating with each other, the working procedures of all the unlocking plates 16 are the same, taking the unlocking plate 16 of the first adjusting mechanism 5 in the first stretcher side plate 3 as an example: the unlocking plate 16 enables one end of the unlocking plate 16 with the round corner 31 to press the long inclined surface 30 on the limiting block 13 under the action of external force, when the unlocking plate 16 moves towards the direction of the limiting block 13, the second guide block 17 moves along with the unlocking plate 16, and the second spring 18 is compressed; the limiting block 13 moves towards the limiting block spring 14 under the extrusion of the unlocking plate 16, and the limiting block spring 14 is compressed; when the short inclined surface 29 of the limiting block 13 also extends out of the limiting groove 20, the sliding block 9 can drive the limiting block 13 to move in the direction away from the second fixing block 12, the limiting block 13 is separated from the limiting groove 20, and finally the sliding block 9 is not limited any more. After the second fixing block 12 is separated from the receiving groove 28 of the slider 9, the stopper 13 can move to be reset under the reset action of the stopper spring 14. When the unlocking plate 16 is no longer acted by external force, the second guide block 17 drives the unlocking plate 16 to move and reset under the reset action of the second spring 18. Finally, after all the sliders 9 are disengaged from the limit, the users can adjust the swing plate 26 to the horizontal state again.
In conclusion, the invention has the main beneficial effects that: the wobble plate 26 in both the first adjustment mechanism 5 and the second adjustment mechanism 6 can be adjusted to accommodate different situations: firstly, when the stretcher transports the patient on the horizontal road, the swing plate 26 is in the horizontal state, and the user can adjust the distance between the two sliding blocks 9 in the first stretcher side plate 3 or the second stretcher side plate 4, so that the distance between the handles 25 can be adjusted relatively, and the user can lift the stretcher better. Secondly, when the stretcher transports a patient between the stairs, the four swing plates 26 can be in a vertical state by adjustment, the two handles 25 on one side of the stretcher are positioned on the upper side of the stretcher, and the two handles 25 on the other side of the stretcher are positioned on the lower side of the stretcher, so that the stretcher can adapt to the fluctuation of the height during the transportation between the stairs, the stretcher cloth 2 is in a horizontal state as much as possible, and the patient is prevented from sliding down from the stretcher to cause secondary injury. The invention has simple structure and better use effect.
Claims (2)
1. The utility model provides a special stretcher of stair that medical field used which characterized in that: the stretcher comprises stretcher fixing plates, stretcher cloth, a first stretcher side plate, a second stretcher side plate, a first adjusting mechanism, a second adjusting mechanism, a sliding groove, a third guide groove, an unlocking plate sliding groove and a second guide groove, wherein the stretcher cloth is arranged between the two stretcher fixing plates; the first stretcher side plate and the second stretcher side plate are respectively arranged at two ends of the stretcher fixing plate;
the structure and the mounting structure of first stretcher curb plate and second stretcher curb plate are the same, to first stretcher curb plate: the side surface of the first stretcher side plate, which is far away from the stretcher cloth, is symmetrically provided with two sliding grooves; two third guide grooves are symmetrically formed in two sides of each sliding groove; two unlocking plate sliding grooves are symmetrically formed in the end faces of the two ends of the first stretcher side plate; each unlocking plate sliding groove is communicated with the corresponding sliding groove; a second guide groove is formed in the side face of each unlocking plate sliding groove; the first adjusting mechanism and the second adjusting mechanism are respectively arranged in the two sliding grooves;
the first adjusting mechanism in the first stretcher side plate is opposite to the first adjusting mechanism in the second stretcher side plate; the second adjustment mechanism in the first stretcher side plate is opposite to the second adjustment mechanism in the second stretcher side plate;
the first adjusting mechanism and the second adjusting mechanism are the same;
the first adjusting mechanism comprises a sliding block, a third guide block, a second fixed block, a limiting block spring, a limiting block sliding groove, an unlocking plate, a second guide block, a second spring, a limiting groove, a ring sleeve, a limiting disc, a limiting strip-shaped plate, a first fixed block, a handle, a swinging plate, a fixed rod, a containing groove, a short inclined plane, a long inclined plane, a fillet, a limiting tooth, a first guide block, a first spring, a first guide groove and a sliding through groove, wherein the sliding block is arranged in the corresponding sliding groove in a sliding fit manner; two third guide blocks are symmetrically arranged on two sides of the sliding block; the two third guide blocks are respectively arranged in the two third guide grooves in a sliding fit manner; one end of the fixed rod is arranged on the sliding block, and the other end of the fixed rod is provided with a limiting disc; the fixed rod is vertical to the first stretcher side plate; a plurality of limiting teeth are uniformly distributed on the outer circular surface of the limiting disc along the circumferential direction; the ring sleeve is nested on the fixed rod and is positioned between the sliding block and the limiting disc; one end of the swinging plate is arranged on the outer circular surface of the ring sleeve; the handle and the first fixed block are both arranged on the side surface of the swinging plate far away from the sliding block; the handle is positioned at one end of the swinging plate far away from the ring sleeve, and the first fixed block is positioned between the limiting disc and the handle; a through sliding through groove is formed in the first fixing block; two first guide grooves are symmetrically formed in the two sides of the sliding through groove; the limiting strip-shaped plate is arranged in the sliding through groove in a sliding fit mode, and two ends of the limiting strip-shaped plate extend out of the sliding through groove; two first guide blocks are symmetrically arranged on two sides of the limiting strip-shaped plate; the two first guide blocks are respectively positioned in the two first guide grooves; the first guide block slides in the first guide groove; one ends of the two first springs are respectively arranged on the two first guide blocks, and the other ends of the two first springs are respectively arranged on the groove surfaces of the two first guide grooves; the two first springs are respectively positioned in the two first guide grooves; one end of the limiting strip template is matched with the limiting teeth on the limiting disc;
the side surface of the sliding block is provided with an accommodating groove; a limiting block sliding groove is formed in the top groove surface of the accommodating groove; the limiting block is slidably arranged in the limiting block sliding groove; one end of the limiting block spring is arranged on the limiting block, and the other end of the limiting block spring is arranged on the groove surface of the limiting block sliding groove; one end of the limiting block, which is far away from the limiting block spring, is provided with a short inclined plane and a long inclined plane; a second fixed block is arranged on the side groove surface of the sliding groove with the unlocking plate sliding groove; a limiting groove is formed in the upper plate surface of the second fixing block; the unlocking plate is arranged in the unlocking plate sliding groove in a sliding fit mode, and two ends of the unlocking plate extend out of the unlocking plate sliding groove; the second guide block is arranged on the unlocking plate; the second guide block is positioned in the second guide groove; the second guide block slides in the second guide groove; one end of the second spring is arranged on the second guide block, and the other end of the second spring is arranged on the groove surface of the second guide groove; the second spring is positioned in the second guide groove;
for the first adjustment structure: the limiting block is matched with a limiting groove on the second fixing block; the second fixed block is matched with the accommodating groove; one end of the unlocking plate is matched with the long inclined plane on the limiting block;
one end of the unlocking plate, which is positioned in the sliding groove, is provided with a round angle;
the side surfaces of the limiting teeth are parallel to the side surfaces of the adjacent limiting teeth;
the first spring is a compression spring; when the first spring is not compressed, one end of the limiting strip plate is positioned between two adjacent limiting teeth on the limiting disc;
the maximum vertical height of the short inclined plane on the limiting block is S1, and the maximum vertical height of the long inclined plane is S2; the depth of the limiting groove on the second fixing block is S3; s2 > S3 > S1.
2. The stretcher special for stairs in medical field according to claim 1, wherein: the limiting block spring is a compression spring; when the limiting block spring is not compressed, one end of the limiting block with the long inclined plane extends out of the limiting block sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910304224.4A CN109966059B (en) | 2018-06-19 | 2018-06-19 | Stretcher special for stairs in medical field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629707.7A CN108670575B (en) | 2018-06-19 | 2018-06-19 | A kind of stair special stretcher that medical field uses |
| CN201910304224.4A CN109966059B (en) | 2018-06-19 | 2018-06-19 | Stretcher special for stairs in medical field |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810629707.7A Division CN108670575B (en) | 2018-06-19 | 2018-06-19 | A kind of stair special stretcher that medical field uses |
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| CN109966059A CN109966059A (en) | 2019-07-05 |
| CN109966059B true CN109966059B (en) | 2020-06-26 |
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| CN201810629707.7A Active CN108670575B (en) | 2018-06-19 | 2018-06-19 | A kind of stair special stretcher that medical field uses |
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| CN201810629707.7A Active CN108670575B (en) | 2018-06-19 | 2018-06-19 | A kind of stair special stretcher that medical field uses |
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| CN109431696B (en) * | 2018-12-31 | 2020-03-10 | 董华 | Emergency stretcher |
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| CN2065906U (en) * | 1989-03-19 | 1990-11-21 | 张士勇 | Folding stretcher for slope, level ground and stairs |
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| DE3245842C2 (en) * | 1982-12-10 | 1984-10-11 | Utila Gerätebau GmbH & Co KG, 5000 Köln | Ambulance transport device, in particular stretcher |
| JPH07313553A (en) * | 1994-05-24 | 1995-12-05 | Michio Katayama | Easily putting-on and putting-down stretcher |
| CN201684094U (en) * | 2010-05-31 | 2010-12-29 | 华南理工大学 | Portable multifunctional stretcher |
| US8474077B2 (en) * | 2010-06-11 | 2013-07-02 | Joshua Grinberg | Weight-stabilizing stretcher |
| CN202446367U (en) * | 2012-02-28 | 2012-09-26 | 宫玲 | Multifunctional stretch capable of being deformed |
| CN202637704U (en) * | 2012-04-10 | 2013-01-02 | 江苏日新医疗设备有限公司 | Inside and outside tube telescopic cooperating structure in medical instruments |
| WO2016196394A1 (en) * | 2015-06-01 | 2016-12-08 | The United States Of America As Represented By The Secretary Of The Army | Surgical rail apparatus for litter |
| CN207101438U (en) * | 2017-02-03 | 2018-03-16 | 王雄明 | A kind of medical first aid stretcher for being easy to assembly and disassembly |
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- 2018-06-19 CN CN201810629707.7A patent/CN108670575B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2065906U (en) * | 1989-03-19 | 1990-11-21 | 张士勇 | Folding stretcher for slope, level ground and stairs |
| CN201304042Y (en) * | 2008-07-25 | 2009-09-09 | 熊婷婷 | Adjustable rescue stretcher |
| CN201855369U (en) * | 2010-11-11 | 2011-06-08 | 邱芳 | Emergency stretcher |
| CN202235967U (en) * | 2011-09-16 | 2012-05-30 | 李群荣 | Stair stretcher |
| CN203749712U (en) * | 2013-12-26 | 2014-08-06 | 刘在冰 | Novel dedicated stretcher for slope surface and laneway |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108670575B (en) | 2019-06-25 |
| CN108670575A (en) | 2018-10-19 |
| CN109966059A (en) | 2019-07-05 |
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Effective date of registration: 20220830 Address after: Kuntang Community, Datang Street, Zhuji City, Shaoxing City, Zhejiang Province 311800 Patentee after: Zhuji Tiantong Chemical Fiber Co.,Ltd. Address before: No. 777, Hongwu, Yunxi village, YINGDIAN Street Town, Zhuji City, Shaoxing City, Zhejiang Province, 311817 Patentee before: Zhang Loufeng |
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Denomination of invention: A special stretcher for stairs used in the medical field Effective date of registration: 20220831 Granted publication date: 20200626 Pledgee: Caota sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: Zhuji Tiantong Chemical Fiber Co.,Ltd. Registration number: Y2022980014100 |