CN202355518U - Worm wheel and worm type exchange cart - Google Patents
Worm wheel and worm type exchange cart Download PDFInfo
- Publication number
- CN202355518U CN202355518U CN2011205106926U CN201120510692U CN202355518U CN 202355518 U CN202355518 U CN 202355518U CN 2011205106926 U CN2011205106926 U CN 2011205106926U CN 201120510692 U CN201120510692 U CN 201120510692U CN 202355518 U CN202355518 U CN 202355518U
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- worm
- vehicle body
- gear
- bed
- cylindrical
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Abstract
The utility model discloses a worm wheel and worm type exchange cart, and belongs to the field of medical instruments. The exchange cart comprises a body and a bed; cylindrical racks for supporting are arranged below the bed; the cylindrical racks are sleeved in rack boxes of the body; a rotating handle is arranged at one end of the body; the rotating handle is connected with worms penetrating through the body along the long axis direction of the body; the worms are positioned at the front and rear ends of the body and respectively engaged with two worm wheels; the worm wheels are respectively arranged on two transmission rods parallel to the short axis of the body; two cylindrical gears are arranged at two ends of each transmission rod; and the cylindrical gears are engaged with the cylindrical racks. The exchange cart is compact in structure, accurate and stable in transmission and low in noise; and in the ascending or descending process, because of the self-locking effects of the worm wheels and the worms, when shaking of the handle is stopped, the cylindrical racks do not move even under the action of an external force.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of Worm-gear type wagon transferred from one yard to another.
Background technology
Present hospital all is equipped with clean operating room, is used for keeping to greatest extent reducing traumatic infection near aseptic cleaning ambient.Clean operation is indoor through strict sterilization, and articles for use still are that apparatus all is isolated from the outside.When patient is admitted to or sees clean operating room off, need to adopt wagon transferred from one yard to another to move patient.Although existing wagon transferred from one yard to another improves through a lot, in patient's docking operation, still can cause vibrations, postoperative patient is caused pain; On the other hand, the up-down of existing wagon transferred from one yard to another bed unit shelf is based on leading screw, the connecting rod kind of drive, and structure is not compact; Transmission accuracy is low, bed unit shelf lift component poor rigidity, and there are vibrations in lifting process; If securing member is loosening, there is the hidden danger of whereabouts suddenly in the bed unit shelf that is in raise-position.
The utility model content
Goal of the invention: the purpose of this utility model provides a kind of safety and stability, compact conformation, Worm-gear type wagon transferred from one yard to another that transmission accuracy is high.
Technical scheme: for realizing above-mentioned purpose; A kind of Worm-gear type wagon transferred from one yard to another of this utility model; Comprise vehicle body and be positioned at the liftable bed in vehicle body top, it is characterized in that: said bed below is provided with four cylindricality tooth bars that are used to support, and is connected to the tooth bar case that is provided with four jiaos of vehicle bodies in the said cylindricality tooth bar; Said vehicle body one end is provided with rotary handle; Said rotary handle links to each other with the worm screw of running through vehicle body along the vehicle body long axis direction, and said worm screw is positioned at the vehicle body rear and front end and is engaged with two worm gears respectively, and said worm gear is installed in respectively on two drive links parallel with the vehicle body minor axis; Every drive link two ends are provided with two roller gears, and said roller gear is meshed with the cylindricality tooth bar.
This utility model adopts the Worm-gear type transmission, owing to adopt multiple tooth engagement, and stable drive, and only by the worm-drive turbine, turbine can not make worm screw rotate, thus the cylindricality tooth bar can arbitrarily not slide, and the stability of wagon transferred from one yard to another is increased greatly.
Each worm gear and corresponding drive link and roller gear thereof all are on the same axis and transmission in the same way.When worm screw is rotated forward or backwards, through worm gear drive two drive links are rotated, realize that the cylindricality tooth bar rises or descends.
Beneficial effect: a kind of Worm-gear type wagon transferred from one yard to another compact conformation of this utility model, because the own characteristic of worm-and-wheel gear, gear ratio is big; Transmission is accurately steady, and noise is very little, in process of rising or falling; Because the self-locking action of worm and gear; When stopping to shake handle,, solved the potential safety hazard that bed falls even the cylindricality tooth bar can not produce motion under external force yet.
Description of drawings
Fig. 1 is the structural representation of this utility model;
Fig. 2 is the enlarged diagram of A among Fig. 1.
The specific embodiment
Please refer to Fig. 1, shown in Figure 2, a kind of Worm-gear type wagon transferred from one yard to another of this utility model comprises the vehicle body 1 that metallic framework constitutes, and vehicle body 1 chassis is equipped with four rolling.Four angular direction at vehicle body 1 are provided with tooth bar case 4, link to each other with bed 2 and are used to support bed 2 but be provided with 3, four cylindricality tooth bar 3 upper ends of cylindricality tooth bar that vertical direction slides in the tooth bar case 4.End at vehicle body 1 is provided with rotary handle 5; Rotary handle 5 links to each other with the worm screw 6 of running through vehicle body along vehicle body 1 long axis direction; Worm screw 6 is positioned at vehicle body 1 rear and front end and is engaged with two worm gears 6 respectively; Two turbines 6 are installed in respectively on two drive links 8 parallel with vehicle body 1 minor axis, and every drive link 8 two ends are provided with two roller gears 9, and roller gear 9 is meshed with cylindricality tooth bar 4.
When with rotary handle 5 rotations, worm screw 6 is rotated thereupon, drives turbine 7 towards rotating with the vertical direction of worm screw 6 rotation directions, drives to drive link 8, roller gear 9 then successively, makes cylindricality tooth bar 3 rise or descend, and realizes the up-down of bed 2.
Claims (2)
1. Worm-gear type wagon transferred from one yard to another; Comprise vehicle body (1) and be positioned at vehicle body (1) top liftable bed (2); It is characterized in that: said bed (2) below is provided with four cylindricality tooth bars (3) that are used to support; Said cylindricality tooth bar (3) connects in the tooth bar case (4) that is socketed on (1) four angle of vehicle body, and said vehicle body (1) one end is provided with rotary handle (5), and said rotary handle (5) links to each other with the worm screw (6) of running through vehicle body (1) along vehicle body (1) long axis direction; Said worm screw (6) is positioned at vehicle body (1) rear and front end and is engaged with two worm gears (7) respectively; Said worm gear (7) is installed in respectively on two drive links (8) parallel with vehicle body (1) minor axis, and every drive link (8) two ends are provided with two roller gears (9), and said roller gear (9) is meshed with cylindricality tooth bar (3).
2. a kind of Worm-gear type wagon transferred from one yard to another according to claim 1 is characterized in that: each worm gear (7) and corresponding drive link (8) and roller gear (9) thereof all are on the same axis and transmission in the same way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205106926U CN202355518U (en) | 2011-12-09 | 2011-12-09 | Worm wheel and worm type exchange cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205106926U CN202355518U (en) | 2011-12-09 | 2011-12-09 | Worm wheel and worm type exchange cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202355518U true CN202355518U (en) | 2012-08-01 |
Family
ID=46566743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205106926U Expired - Fee Related CN202355518U (en) | 2011-12-09 | 2011-12-09 | Worm wheel and worm type exchange cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202355518U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104688443A (en) * | 2015-03-25 | 2015-06-10 | 彭文献 | Electric wheeled stretcher |
| CN111150582A (en) * | 2020-02-25 | 2020-05-15 | 赵经燕 | Multifunctional medical sickbed |
| CN112426316A (en) * | 2020-12-31 | 2021-03-02 | 黑龙江省医院 | Severe medical bed and operation method |
| CN113812798A (en) * | 2021-09-26 | 2021-12-21 | 新疆兰亭驿酒店管理有限公司 | Assembled suspended structure and bed body |
-
2011
- 2011-12-09 CN CN2011205106926U patent/CN202355518U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104688443A (en) * | 2015-03-25 | 2015-06-10 | 彭文献 | Electric wheeled stretcher |
| CN111150582A (en) * | 2020-02-25 | 2020-05-15 | 赵经燕 | Multifunctional medical sickbed |
| CN111150582B (en) * | 2020-02-25 | 2021-08-10 | 郭霞 | Multifunctional medical sickbed |
| CN112426316A (en) * | 2020-12-31 | 2021-03-02 | 黑龙江省医院 | Severe medical bed and operation method |
| CN113812798A (en) * | 2021-09-26 | 2021-12-21 | 新疆兰亭驿酒店管理有限公司 | Assembled suspended structure and bed body |
| CN113812798B (en) * | 2021-09-26 | 2023-11-17 | 新疆兰亭驿酒店管理有限公司 | Assembled unsettled structure and bed body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |