阅读说明：本技术 一种购物梯推进机构 (Shopping ladder advancing mechanism ) 是由 董明辉 魏东升 于 2020-04-29 设计创作，主要内容包括：本发明公开了一种购物梯推进机构,包括电机,电机的外壁设置有固定支架,固定支架设置有主机垫片,主机垫片设置有主机支架,主机支架滑动穿插套接有平机螺丝,平机螺丝滑动套接有平面轴承,平机螺丝滑动套接有转动支架,且转动支架位于平面轴承之间,平机螺丝的外壁滑动套接有转动垫片,平机螺丝外壁的顶部螺纹套接有螺母。本发明利用电机的设置方式,电机通过主机支架、平机螺丝、平面轴承与转动支架转动连接,在购物车经过时候推进底座张开,同时电机开关闭合开始动作输送带,小车在输送带的作用下同步推出梯外,此时推进底座在弹簧作用力下回到初始状态,电机停止运行,从而节约资源,提高电机使用寿命。(The invention discloses a shopping ladder propelling mechanism which comprises a motor, wherein a fixing support is arranged on the outer wall of the motor, a main machine gasket is arranged on the fixing support, a main machine support is arranged on the main machine gasket, a flat machine screw is slidably inserted and sleeved on the main machine support, a plane bearing is slidably sleeved on the flat machine screw, a rotating support is slidably sleeved on the flat machine screw and positioned between the plane bearings, a rotating gasket is slidably sleeved on the outer wall of the flat machine screw, and a nut is sleeved on the top thread of the outer wall of the flat machine screw. The invention utilizes the arrangement mode of the motor, the motor is rotationally connected with the rotating bracket through the host bracket, the flat machine screw and the plane bearing, the base is pushed to be opened when the shopping cart passes, the motor switch is closed to start the action of the conveyer belt, the trolley is synchronously pushed out of the ladder under the action of the conveyer belt, the base is pushed to return to the initial state under the action of the spring, and the motor stops running, thereby saving resources and prolonging the service life of the motor.)

1. A shopping ladder propelling mechanism comprises a motor (1) and is characterized in that a fixed bracket (2) is arranged on the outer wall of the motor (1), a host gasket (3) is arranged on one side of the fixed support (2), a host support (4) is arranged on one side of the host gasket (3), a flat machine screw (5) is inserted and sleeved in the middle of the lower surface of the main machine support (4) in a sliding way, the outer wall of the flat machine screw (5) is sleeved with two plane bearings (6) in a sliding way, the outer wall of the flat machine screw (5) is sleeved with a rotating bracket (7) in a sliding way, the rotating bracket (7) is positioned between the two plane bearings (6), the outer wall of the flat machine screw (5) is sleeved with a rotating gasket (8) in a sliding way, and the rotating gasket (8) is positioned at the top of the plane bearing (6), and the top thread of the outer wall of the flat machine screw (5) is sleeved with a nut (9).

2. The shopping ladder propulsion mechanism according to claim 1, characterized in that one side of the main frame support (4) is provided with a propulsion base (11), the middle part of one side of the propulsion base (11) is provided with a plurality of square-well bolts (12) in a rectangular array, and the propulsion base (11) is fixedly connected with the main frame support (4), the main frame gasket (3), the fixed frame (2) and the motor (1) through the square-well bolts (12).

3. The shopping ladder propelling mechanism according to claim 2, wherein the bottom of one side of the propelling base (11) is symmetrically slidably sleeved with a mounting bolt (13), and the top of one side of the propelling base (11) is threadedly sleeved with a limit screw (14).

4. The shopping ladder propelling mechanism according to claim 2, wherein a swing arm is fixedly connected to the side of the propelling base (11), a first spring (15) is fixedly connected to one side of the swing arm, and one end of the first spring (15) is fixedly connected to the rotating bracket (7).

5. The shopping ladder propulsion mechanism as claimed in claim 1, characterized in that a support base plate (16) is disposed on the primary side of the upper surface of the rotating support (7), four sliding holes (18) are formed in one side of the upper surface of the rotating support (7) in a rectangular array, a connecting bolt (17) is slidably inserted and sleeved in an inner cavity of each sliding hole (18), the bottom of the outer wall of each connecting bolt (17) is in threaded sleeve connection with the support base plate (16), and a driven wheel (19) is rotatably connected to one end of each support base plate (16).

6. The shopping ladder propulsion mechanism as claimed in claim 1, characterized in that the output of the motor (1) is in driving connection with a driving wheel (20), and a belt (21) is arranged between the driving wheel (20) and a driven wheel (19).

7. The shopping ladder propulsion mechanism as claimed in claim 5, wherein a polyethylene backing plate (22) is arranged on one side of the upper surface of the support base plate (16), a bearing groove (23) is formed on one side of the upper surface of the support base plate (16), a limiting rod (24) is fixedly connected to the inner wall of the bearing groove (23), a limiting hole is formed in the bottom of one side of the polyethylene backing plate (22), and the outer wall of the limiting rod (24) is in sliding sleeve connection with the limiting hole.

8. The shopping ladder propulsion mechanism as claimed in claim 7, wherein a mounting groove is formed in the middle of the lower surface of the polyethylene backing plate (22), a slide bar is fixedly connected to the top of the inner wall of the mounting groove, a second spring (25) is slidably sleeved on the outer wall of the slide bar, and the bottom of the second spring (25) is attached to the support base plate (16).

9. The shopping ladder propulsion mechanism according to claim 1, characterized in that the motor (1) is electrically connected to an external power source through an external motor switch.

Technical Field

The invention relates to the field of propelling mechanisms, in particular to a propelling mechanism of a shopping ladder.

Background

After the shopping cart is pushed into the elevator, the shopping cart can move forwards along the elevator track and the stepping elevator synchronously, so that the defects of large occupied space and long distance of the original flat elevator are reduced, the shopping burden of consumers is reduced, and the shopping cart is particularly suitable for the old and the disabled who are old and weak, and represents the humanistic care of a happy city supermarket to the customers.

But the current shopping ladder just continues work always when opening the switch, and when nobody used, the motor continued work not only can lead to the waste of electric power resource, and the long-time work of motor can reduce its life.

Disclosure of the invention

The present invention is directed to a shopping ladder propulsion mechanism to solve the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a shopping ladder advancing mechanism, includes the motor, the outer wall of motor is provided with the fixed bolster, one side of fixed bolster is provided with the host computer gasket, one side of host computer gasket is provided with the host computer support, the middle part of host computer support lower surface slides and alternates and has cup jointed flat-bed machine screw, two plane bearings have been cup jointed in the outer wall of flat-bed machine screw slip, the outer wall of flat-bed machine screw slides and has cup jointed the rotation support, just the rotation support is located between two plane bearings, the outer wall of flat-bed machine screw slides and has cup jointed the rotation gasket, just the rotation gasket is located plane bearing's top, the nut has been cup jointed to the top screw thread of.

Preferably, one side of host computer support is provided with and impels the base, the middle part of impeling base one side is the rectangle array and is provided with a plurality of square well bolts, impel the base and pass through square well bolt and host computer support, host computer gasket, fixed bolster and motor fixed connection.

Preferably, the bottom of one side of the propulsion base is symmetrically slidably sleeved with mounting bolts in a penetrating and inserting manner, and the top thread of one side of the propulsion base is sleeved with a limiting screw in a penetrating and inserting manner.

Preferably, the avris fixedly connected with swing arm of propelling the base, the first spring of one side fixedly connected with of swing arm, the one end and the runing rest fixed connection of first spring.

Preferably, a support bottom plate is arranged on the primary side of the upper surface of the rotating support, four sliding holes are formed in one side of the upper surface of the rotating support in a rectangular array, connecting bolts are inserted into inner cavities of the sliding holes in a sliding mode, the bottoms of the outer walls of the connecting bolts are in threaded sleeve connection with the support bottom plate, and one end of the support bottom plate is rotatably connected with a driven wheel.

Preferably, the output end of the motor is in transmission connection with a driving wheel, and a belt is arranged between the driving wheel and a driven wheel.

Preferably, one side of the upper surface of the support base plate is provided with a polyethylene base plate, one side of the upper surface of the support base plate is provided with a bearing groove, the inner wall of the bearing groove is fixedly connected with a limiting rod, the bottom of one side of the polyethylene base plate is provided with a limiting hole, and the outer wall of the limiting rod is in sliding sleeve joint with the limiting hole.

Preferably, the middle part of polyethylene backing plate lower surface has seted up the mounting groove, the top fixedly connected with slide bar of mounting groove inner wall, the outer wall of slide bar slides and has cup jointed the second spring, the bottom and the support bottom plate of second spring laminate mutually.

Preferably, the motor is electrically connected with an external power supply through an external motor switch.

The invention has the technical effects and advantages that:

(1) the invention utilizes the arrangement mode of the motor, the motor is rotationally connected with the rotating bracket through the host bracket, the flat machine screw and the plane bearing, the base is pushed to be opened when the shopping cart passes, the motor switch is closed to start the action of the conveyer belt, the trolley is synchronously pushed out of the ladder under the action of the conveyer belt, the base is pushed to return to the initial state under the action of the spring at the moment, and the motor stops running, thereby saving resources and prolonging the service life of the motor;

(2) according to the invention, the arrangement mode of the rotating bracket is utilized, the rotating bracket is fixedly connected with the bracket bottom plate through the connecting bolt, and the rotating bracket is provided with the sliding hole, so that the position relation between the bracket bottom plate and the rotating bracket can be adjusted to a certain degree relatively, the tightness degree of a belt is adjusted, a motor drives the leather pad to rotate, and the stability of the leather pad is improved;

(3) according to the invention, the polyethylene base plate is arranged, and under the action of the second spring, the polyethylene base plate can give an elastic force to the polyethylene base plate, so that a tightening force is given to the belt, the belt is in a tightened straight state, and the running stability of the belt is improved.

Drawings

FIG. 1 is a schematic top view of the present invention.

Fig. 2 is a schematic view of the overall structure of the motor of the present invention.

FIG. 3 is a side view of the bottom plate of the stand according to the present invention.

FIG. 4 is a schematic view of a top view of the rotatable bracket of the present invention.

In the figure: 1. a motor; 2. fixing a bracket; 3. a host pad; 4. a host support; 5. flattening a machine screw; 6. a flat bearing; 7. rotating the bracket; 8. rotating the spacer; 9. a nut; 11. pushing the base; 12. a square well bolt; 13. installing a bolt; 14. a limit screw; 15. a first spring; 16. a bracket base plate; 17. a connecting bolt; 18. a slide hole; 19. a driven wheel; 20. a driving wheel; 21. a belt; 22. a polyethylene backing plate; 23. a bearing groove; 24. a limiting rod; 25. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a shopping ladder propulsion mechanism as shown in figures 1-4, which comprises a motor 1, wherein the outer wall of the motor 1 is provided with a fixed support 2, one side of the fixed support 2 is provided with a host gasket 3, one side of the host gasket 3 is provided with a host support 4, the middle part of the lower surface of the host support 4 is slidably inserted and sleeved with a flat machine screw 5, the outer wall of the flat machine screw 5 is slidably sleeved with two plane bearings 6, the outer wall of the flat machine screw 5 is slidably sleeved with a rotating support 7, under the action of the rotating bracket 7, the two plane bearings 6 and the flat machine screw 5, the main machine bracket 4 rotates relatively to the rotating bracket 7, thereby changing the working state of the motor 1, the rotating bracket 7 is positioned between the two plane bearings 6, the outer wall of the flat machine screw 5 is sleeved with a rotating gasket 8 in a sliding way, and the rotating gasket 8 is positioned at the top of the plane bearing 6, and the nut 9 is sleeved on the top thread of the outer wall of the flat machine screw 5.

Preferably, a pushing base 11 is arranged on one side of the host support 4, a plurality of square well bolts 12 are arranged in a rectangular array in the middle of one side of the pushing base 11, and the pushing base 11 is fixedly connected with the host support 4, the host gasket 3, the fixed support 2 and the motor 1 through the square well bolts 12;

the bottom of one side of the propulsion base 11 is symmetrically and slidably sleeved with a mounting bolt 13 in an inserting way, the top thread of one side of the propulsion base 11 is sleeved with a limit screw 14 in a threading way, the limit screw 14 can limit the maximum minimum included angle of the host bracket 4 relative to the rotating bracket 7, and the included angle between the limit screws can be changed by adjusting the length of one end of the limit screw 14, so that the push base is suitable for different working environments, the side of the push base 11 is fixedly connected with a swing arm, one side of the swing arm is fixedly connected with a first spring 15, the first spring 15 can provide a pulling force for the host machine bracket 4, thereby ensuring that the host bracket 4 forms a certain included angle relative to the rotating bracket 7 when no trolley passes through, the motor 1 is in a stop working state, when the angle of the host bracket 4 relative to the rotating bracket 7 is increased to a certain degree, the motor switch is turned on, the motor 1 is electrified to work, and one end of the first spring 15 is fixedly connected with the rotating bracket 7;

a support bottom plate 16 is arranged on the primary side of the upper surface of the rotating support 7, four sliding holes 18 are formed in one side of the upper surface of the rotating support 7 in a rectangular array, when the connecting bolts 17 slide in the sliding holes 18, the position relation between the support bottom plate 16 and the rotating support 7 can be changed, so that the tightness degree of the belt 21 is adjusted, and the belt is convenient to stably run, the connecting bolts 17 are slidably inserted and sleeved in inner cavities of the sliding holes 18, the bottom of the outer wall of each connecting bolt 17 is in threaded sleeve connection with the support bottom plate 16, one end of the support bottom plate 16 is rotatably connected with a driven wheel 19, the output end of the motor 1 is in transmission connection with a driving wheel 20, and the belt 21;

one side of the upper surface of the support base plate 16 is provided with a polyethylene backing plate 22, the polyethylene backing plate 22 is a smooth, elastic and low-temperature-resistant material, the belt 21 can be self-adjusted under the action of a second spring 25, so that the driving wheel 20 and the driven wheel 19 drive the belt to rotate, and thus the trolley is transported on the belt 21, one side of the upper surface of the support base plate 16 is provided with a bearing groove 23, the inner wall of the bearing groove 23 is fixedly connected with a limiting rod 24, the bottom of one side of the polyethylene backing plate 22 is provided with a limiting hole, the outer wall of the limiting rod 24 is slidably sleeved with the limiting hole, the middle part of the lower surface of the polyethylene backing plate 22 is provided with a mounting groove, the top of the inner wall of the mounting groove is fixedly connected with a sliding rod, the sliding rod can limit the position of the polyethylene backing plate 22 when the polyethylene backing plate 22 does, the outer wall of the sliding rod is sleeved with a second spring 25 in a sliding mode, the second spring 25 can provide supporting force for the polyethylene backing plate 22, and the bottom of the second spring 25 is attached to the support bottom plate 16;

the motor 1 is electrically connected with an external power supply through an external motor switch.

The working principle of the invention is as follows: when the shopping ladder is installed, firstly, a fixed support 2 is installed on a motor 1, then a driving wheel 20 is fixedly installed on the output end of the motor 1, then a main machine gasket 3, a main machine support 4 and a pushing base 11 are sequentially fixed on one side of the motor 1 by utilizing a square well bolt 12, then a flat machine screw 5 penetrates through the bottom of the main machine support 4, then a plane bearing 6 is sleeved in a sliding way, then a rotating support 7 is sleeved on the flat machine screw 5 in a sliding way, then a plane bearing 6 is sleeved, then a rotating gasket 8 is covered and fixed by a nut 9, one side of the bottom of the rotating support 7 is superposed with a support bottom plate 16, the position of the rotating support 7 is limited by a connecting bolt 17 and is kept in a loose state, then a belt 21 is sleeved between the driving wheel 20 and a driven wheel 19, then the support bottom plate 16 is moved to enable the belt 21 to be in a stretched state, and then the connecting bolt, the position of a support bottom plate 16 and a rotating support 7 is fixed, the support bottom plate and the rotating support 7 are installed in an appointed region, a first spring 15 is installed on the rotating support 7 and a pushing base 11, an elastic tensile force is reserved between the rotating support 7 and the pushing base 11, a certain included angle is formed between the rotating support 7 and the pushing base 11 under the action of the first spring 15 by adjusting a limit screw 14, and the rotating support 7 and the pushing base 11 are connected with a motor switch by utilizing a mounting bolt 13;

under the normal condition, the mechanism deflects towards the center of the ladder under the action of a tension spring, when a shopping cart passes through, a swing arm is opened, a host machine support 4 rotates relative to a rotating support 7 at the moment, a pushing base 11 rotates at the moment, a motor switch is turned on, a motor 1 is electrified to work, a belt 21 is driven to rotate through a driving wheel 20, so that the belt 21 pushes the trolley to move, when the trolley moves out of the range of the swing arm, the belt 21 can provide a transmission force for the trolley under the gravity inertia of the trolley, and under the interaction of the forces, the motor 1 is subjected to a reverse action force to continuously keep the working state of movement;

when the trolley moves out of the range of the belt 21, the reverse acting force applied to the motor 1 disappears, the host bracket 4 rotates relative to the rotating bracket 7 under the action of the first spring 15, one end of the limit screw 14 is in contact with the rotating bracket 7, the motor switch is turned off at the moment, and the pushing mechanism finishes working.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.