Chain wheel mechanism on medical electric transfer vehicle

Abstract

The utility model relates to the field of medical electric transfer vehicles, in particular to a chain wheel mechanism on a medical electric transfer vehicle, which comprises an upper-layer general assembly frame, a main body, a first gear speed reducing motor, a second gear speed reducing motor, a second gear speed reducing motor and a third gear speed reducing motor, and the output end of the first gear speed reducing motor is rotationally connected with a first conveying shaft. The chain wheel mechanism is provided with the first chain wheel base, the main driven chain wheel, the auxiliary driven chain wheel, the first receiving and conveying chain set, the lever connecting plates, the second driven chain wheel and the second receiving and conveying chain set, and when the chain wheel mechanism on the medical electric transfer trolley is used, the lever connecting plates can be installed above the first receiving and conveying chain set and the second receiving and conveying chain set; the two sets of lever connecting plates are connected and installed with a moving plate and moving cloth of the medical electric transfer trolley correspondingly, then the main driven chain wheel and the auxiliary driven chain wheel are connected with the first receiving and sending chain set in a meshed mode, and then the moving plate can be driven to complete the receiving and sending function.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical electric transfer car field, concretely relates to a chain wheel mechanism on medical electric transfer car. BACKGROUND

[0002] Medical electric transfer car is a kind of electric vehicle specially used for carrying patient in hospital, also called medical stretcher or medical escort car, and it is usually composed of frame, motor, battery, control system and other parts, the chain wheel mechanism on medical electric transfer car is an important component in its drive system, and the working principle of chain wheel mechanism is to transmit power through chain, so that the mechanical equipment connected with chain wheel moves, in the working process, the gear of chain wheel and chain are mutually engaged, when the gear rotates, chain slides along the gear, so as to achieve the purpose of transmitting force and movement.

[0003] The chain wheel mechanism on existing medical electric transfer car is prone to poor stability and receiving expansion and contraction not smoothly in use, so the braking structure of the overall chain wheel mechanism needs to be complicated to meet the use demand of medical electric transfer car, which is not suitable for use on medical electric transfer car and the transmission capacity cannot be guaranteed stable.

[0004] Therefore, it is necessary to invent a chain wheel mechanism on medical electric transfer car to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of chain wheel mechanisms on medical electric transfer car, by first sprocket seat, main driven sprocket, auxiliary driven sprocket, first pick-up chain group, lever connecting plate, second driven sprocket and second pick-up chain group realize let the chain wheel mechanism on this medical electric transfer car simplify the braking structure of chain wheel mechanism on medical electric transfer car, make the structure of medical electric transfer car more compact, transmission is more smooth, while multiple sprocket strengthens the load capacity of chain, when meeting the patient weight difference, the stability of chain wheel mechanism and receiving expansion and contraction smoothly purpose can also be guaranteed, which also expands the use demand of the overall chain wheel mechanism on this medical electric transfer car, guarantee the normal use effect of the chain wheel mechanism on medical electric transfer car, to solve the chain wheel mechanism on medical electric transfer car in prior art in use process, since the patient weight difference of being transferred, in transfer process, the chain wheel mechanism on medical electric transfer car is big, chain wheel mechanism is prone to poor stability and receiving expansion and contraction not smoothly, so as to meet the use demand of medical electric transfer car, the braking structure of the overall chain wheel mechanism needs to be complicated, so it is not only not suitable for use on medical electric transfer car, but also transmission capacity cannot guarantee stability.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a chain wheel mechanism on medical electric transfer car, including upper layer assembly frame, the main body for chain wheel mechanism installation,

[0007] The first gear reduction motor is fixedly arranged outside the upper layer assembly frame, is used for driving the chain movement, and the output end of the first gear reduction motor is rotatably connected with the first transmission shaft, the outside of the first transmission shaft is provided with the first chain wheel seat, and the first chain wheel seat is fixedly installed with the chain wheel outer frame outside.

[0008] The main driven chain wheel is arranged outside the first chain wheel seat and is used for assisting the chain movement, and the two sides of the main driven chain wheel are rotatably connected with the auxiliary driven chain wheel, the outside of the main driven chain wheel is meshedly connected with the first chain receiving group, and the first chain receiving group is fixedly installed with the lever connecting plate outside.

[0009] The second chain wheel seat is fixedly arranged below the chain wheel outer frame and is used for connecting and installing the second driven chain wheel, and the outside of the second driven chain wheel is meshedly connected with the second chain receiving group.

[0010] Preferably, the main driven chain wheel is rotatably connected with the first chain wheel seat, and the first transmission shaft is fixedly connected with the main driven chain wheel.

[0011] Preferably, the chain wheel outer frame is fixedly installed with two end head frames on the two sides, and the inside of the two end head frames is rotatably connected with the inner double head gear.

[0012] Preferably, the lever connecting plate is screwedly connected with the first chain receiving group, and the auxiliary driven chain wheel is meshedly connected with the first chain receiving group.

[0013] Preferably, the second gear reduction motor is fixedly installed outside the upper layer assembly frame, and the output end of the second gear reduction motor is rotatably connected with the second transmission shaft.

[0014] Preferably, the second driven chain wheel is rotatably connected with the second chain wheel seat, and the front end of the second transmission shaft is fixedly connected with the second driven chain wheel.

[0015] In the above technical scheme, the utility model provides the technical effect and advantage:

[0016] The utility model discloses a first sprocket seat, main driven sprocket, auxiliary driven sprocket, first pick-up chain group, lever connecting plate, second driven sprocket and second pick-up chain group are set up, when using the sprocket mechanism on the medical electric transfer trolley, the upper portion of first pick-up chain group and second pick-up chain group can install lever connecting plate, through two groups of lever connecting plate are connected with the moving plate and mobile cloth of medical electric transfer trolley respectively and install, then in main driven sprocket and auxiliary driven sprocket and first pick-up chain group carry out meshing connection, can drive moving plate to complete pick-up function, then second driven sprocket drives second pick-up chain group also carries out operation and completes the follow-up contraction function of moving plate, so that the sprocket mechanism on the medical electric transfer trolley simplifies the brake structure of sprocket mechanism on the medical electric transfer trolley, and the structure of medical electric transfer trolley is more compact, transmission is more smooth, and a plurality of sprockets strengthen the load -bearing capacity in chain, when meeting the patient weight difference also can guarantee the stability and receiving telescopic smoothness of sprocket mechanism, so that also expand the overall use demand of sprocket mechanism on the medical electric transfer trolley, guarantee the normal use of sprocket mechanism on the medical electric transfer trolley. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the sprocket outer frame structure schematic diagram of the utility model;

[0020] Figure 3 It is the main driven sprocket structure schematic diagram of the utility model;

[0021] Figure 4 It is the lever connecting plate structure schematic diagram of the utility model;

[0022] Figure 5 It is the second pick-up chain group structure schematic diagram of the utility model.

[0023] Explanation of reference signs:

[0024] 1, upper assembly frame; 2, first gear reduction motor; 3, first transmission shaft; 4, first sprocket seat; 5, sprocket outer frame; 6, both end head frame; 7, inner double head gear; 8, main driven sprocket; 9, auxiliary driven sprocket; 10, first receiving chain set; 11, lever connecting plate; 12, second sprocket seat; 13, second driven sprocket; 14, second receiving chain set; 15, second gear reduction motor; 16, second transmission shaft. DETAILED DESCRIPTION

[0025] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0026] The utility model provides a kind of sprocket mechanism on medical electric transfer car as Figures 1-5 As shown in the figure, including upper assembly frame 1, the main body for the installation of sprocket mechanism;

[0027] First gear reduction motor 2 is fixedly arranged at the outside of upper assembly frame 1, for driving chain movement, and the output end of first gear reduction motor 2 is rotatably connected with first transmission shaft 3, and the outside of first transmission shaft 3 is provided with first sprocket seat 4, and the outside of first sprocket seat 4 is fixedly installed with sprocket outer frame 5;

[0028] Main driven sprocket 8 is arranged at the outside of first sprocket seat 4, for assisting chain movement, and the two sides of main driven sprocket 8 are rotatably connected with auxiliary driven sprocket 9, and the outside of main driven sprocket 8 is meshingly connected with first receiving chain set 10, and the outside of first receiving chain set 10 is fixedly installed with lever connecting plate 11;

[0029] Second sprocket seat 12 is fixedly arranged below sprocket outer frame 5, for connecting and installing second driven sprocket 13, and the outside of second driven sprocket 13 is meshingly connected with second receiving chain set 14, and the two groups of lever connecting plates 11 are respectively connected and installed with the moving plate and moving cloth of medical electric transfer car, then main driven sprocket 8 and auxiliary driven sprocket 9 are meshingly connected with first receiving chain set 10, so that the moving plate can be driven to complete receiving function, then second driven sprocket 13 drives second receiving chain set 14 to also run to complete the follow-up contraction function of moving plate, so that the sprocket mechanism on the medical electric transfer car simplifies the brake structure of the sprocket mechanism on the medical electric transfer car.

[0030] As shown in the figure, Figure 1 , Figure 2 And Figure 3As shown, the master and driven sprocket 8 is rotatably connected with the first sprocket seat 4, the first transmission shaft 3 is fixedly connected with the master and driven sprocket 8, the master and driven sprocket 8 and the auxiliary driven sprocket 9 are meshingly connected with the first receiving and sending chain set 10, so as to drive the moving plate to complete the receiving and sending function, the two end head frames 6 are fixedly installed on the two sides of the sprocket outer frame 5, the inner double head gear 7 is rotatably connected in the two end head frames 6, the two end head frames 6 and the inner double head gear 7 are located at the two ends of the chain, which not only can stabilize the operation of the chain, but also can guarantee the running tension of the chain.

[0031] As shown in Figure 1 , Figure 4 and Figure 5 , the lever connecting plate 11 is threadedly connected with the first receiving and sending chain set 10, the auxiliary driven sprocket 9 is meshingly connected with the first receiving and sending chain set 10, the two groups of lever connecting plates 11 are respectively connected and installed with the moving plate and the moving cloth of the medical electric transfer vehicle, which meets the use requirement of the sprocket mechanism, the second gear reduction motor 15 is fixedly installed on the outside of the upper assembly frame 1, the output end of the second gear reduction motor 15 is rotatably connected with the second transmission shaft 16, the overall structure of the second gear reduction motor 15 and the second transmission shaft 16 is simple, the operation is simple, and the maintenance personnel can timely maintain or replace when a fault occurs, the second driven sprocket 13 is rotatably connected with the second sprocket seat 12, the front end of the second transmission shaft 16 is fixedly connected with the second driven sprocket 13, the second driven sprocket 13 drives the second receiving and sending chain set 14 to also operate to complete the follow-up contraction function of the moving plate.

[0032] The utility model discloses a medical electric transfer car's chain wheel mechanism, which comprises a first gear reduction motor 2, a first transmission shaft 3, a main driven sprocket 8, a first pick-up chain group 10, a second gear reduction motor 15, a second transmission shaft 16, a second from sprocket 13 and a second pick-up chain group 14.

[0033] The above only describes some exemplary embodiments of the utility model in a descriptive way, without doubt, for ordinary skilled person in the art, under the condition of not deviating from the spirit and scope of the utility model, can modify the described embodiment in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A sprocket mechanism on a medical electric transfer cart, characterized by: Comprising The upper assembly frame (1) is used for the main body of the chain wheel mechanism installation; The first gear reduction motor (2) is fixedly arranged outside the upper assembly frame (1), used to drive the chain movement, and the output end of the first gear reduction motor (2) is rotatably connected with the first transmission shaft (3), the outside of the first transmission shaft (3) is provided with the first chain wheel seat (4), and the outside of the first chain wheel seat (4) is fixedly installed with the chain wheel outer frame (5); The main driven chain wheel (8) is arranged outside the first chain wheel seat (4) and is used to assist the chain movement, and the two sides of the main driven chain wheel (8) are rotatably connected with the auxiliary driven chain wheel (9), the outside of the main driven chain wheel (8) is meshedly connected with the first chain receiving group (10), and the outside of the first chain receiving group (10) is fixedly installed with the lever connecting plate (11); The second chain wheel seat (12) is fixedly arranged below the chain wheel outer frame (5) and is used to connect and install the second driven chain wheel (13), and the outside of the second driven chain wheel (13) is meshedly connected with the second chain receiving group (14).

2. A sprocket mechanism for a medical electric transfer cart according to claim 1, wherein: The main driven chain wheel (8) is rotatably connected with the first chain wheel seat (4), and the first transmission shaft (3) is fixedly connected with the main driven chain wheel (8).

3. A sprocket mechanism for a medical power transfer cart as defined in claim 1, wherein: The chain wheel outer frame (5) is fixedly installed with two end head frames (6) on both sides, and the inside of the two end head frames (6) is rotatably connected with the inner double-head gear (7).

4. A sprocket mechanism for a medical power transfer cart as defined in claim 1, wherein: The lever connecting plate (11) is threadedly connected with the first chain receiving group (10), and the auxiliary driven chain wheel (9) is meshedly connected with the first chain receiving group (10).

5. A sprocket mechanism for a medical power transfer cart as defined in claim 1, wherein: The outside of the upper assembly frame (1) is fixedly installed with the second gear reduction motor (15), and the output end of the second gear reduction motor (15) is rotatably connected with the second transmission shaft (16).

6. A sprocket mechanism for a medical electric transfer cart according to claim 5, wherein: The second driven chain wheel (13) is rotatably connected with the second chain wheel seat (12), and the front end of the second transmission shaft (16) is fixedly connected with the second driven chain wheel (13).

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