阅读说明：本技术 一种用于办公室收取信件的设备及使用方法 (Equipment for office to receive letters and using method ) 是由 丁维兵 于 2020-05-15 设计创作，主要内容包括：本发明提供一种用于办公室收取信件的设备及使用方法,涉及办公室设备领域,该用于办公室收取信件的设备,包括底盘以及安装在底盘底部驱动轮。所述底盘前端开设有放置槽,放置槽内枢接有连杆,连杆与放置槽枢接端连接有涡卷弹簧。该用于办公室收取信件的设备,通过连杆、吸盘和气泵之间的配合,连杆向下翻转令吸盘吸住信件。起到一个抓取信件的效果。再借助马达、绳索和凸轮配合,将连杆向上提起。借助光栅与气泵配合,令连杆经过光栅气泵停止吸气,从而将信件甩入收集袋内。起到将信件收集的作用。实现对通过门缝塞入的信件进行收集的效果,避免上班打开办公室门信件被挤到角落。防止信件在角落没人注意而不能及时递交给收件人。(The invention provides equipment for office letter receiving and a using method thereof, relating to the field of office equipment. The chassis front end has seted up the standing groove, and the pivot has connect the connecting rod in the standing groove, and connecting rod and standing groove pivot end are connected with volute spiral spring. This an equipment for office receives mail, through the cooperation between connecting rod, sucking disc and the air pump, the connecting rod overturns downwards and makes the sucking disc catch the mail. The effect of grabbing the letter is achieved. And the connecting rod is lifted upwards by the cooperation of the motor, the rope and the cam. By means of the cooperation of the grating and the air pump, the connecting rod stops sucking air through the grating air pump, and accordingly letters are thrown into the collecting bag. The letter collecting device plays a role in collecting letters. The effect of collecting the mails plugged in through the door gap is achieved, and the mails on the office door are prevented from being extruded to corners when the office door is opened on duty. The letter is prevented from being cared by people in corners and cannot be delivered to the receiver in time.)

1. An apparatus for office letter pickup, comprising a chassis (1) and a drive wheel mounted at the bottom of the chassis (1), characterized in that: the front end of the chassis (1) is provided with a placing groove (11), a connecting rod (2) is pivoted in the placing groove (11), the pivoting end of the connecting rod (2) and the placing groove (11) is connected with a volute spiral spring (21), the front end of the connecting rod (2) is connected with a sucker (3), the suction surface of the sucker (3) faces downwards, the sucker (3) is used for contacting letters, the placing groove (11) is connected with an air pump (4), a leather hose (41) is connected between the air pump (4) and the sucker (3), the air pump (4) is used for adsorbing the letters by the sucker (3), the top of the chassis (1) close to the front end is connected with a camera (10), the top of the chassis (1) is connected with a grating (14), the grating (14) is positioned behind the placing groove (11), the rear end of the chassis (1) is provided with a collecting bin (9), an inner cavity (12) is arranged in the chassis (, two upset subassemblies (5) and connecting rod (2) both ends one-to-one, upset subassembly (5) one end is passed inner chamber (12) and connecting rod (2) end connection, and upset subassembly (5) are used for driving connecting rod (2) upset, and air pump (4) stop work when connecting rod (2) upset is through grating (14) makes the mail throw into in collecting bin (9), upset subassembly (5) are including motor (51), leading wheel (52), rope (53) and cam (54), motor (51) are located inner chamber (12), and leading wheel (52) pin joint is on inner chamber (12) inner wall, and cam (54) are established at connecting rod (2) tip, and rope (53) one end is connected with motor (51) transmission shaft, and rope (53) other end extends to outside chassis (1) through leading wheel (52) to be connected with cam (54) arch.

2. An apparatus for office pickup of letters, as set forth in claim 1, wherein: collect storehouse (9) including fixed frame (91), collection bag (92) and clamp (93), establish on chassis (1) fixed frame (91), collect bag (92) open end cover in fixed frame (91), clamp (93) and fixed frame (91) lock, clamp (93) are used for fixed collection bag (92).

3. An apparatus for office pickup of letters, as set forth in claim 1, wherein: grooves (13) are formed in two sides of the bottom of the chassis (1), the grooves (13) are close to the front end of the chassis (1), the arrangement component (8) is connected in the grooves (13), a dragging component is arranged in the inner cavity (12), and the dragging component extends out of the chassis (1) and is connected with the arrangement component (8); arrangement subassembly (8) include horizontal pole (81), sponge board (82) and spring (83), and horizontal pole (81) one end pin joint is in recess (13), and horizontal pole (81) other end extends to chassis (1) the place ahead, and sponge board (82) are connected in horizontal pole (81) below, and sponge board (82) can promote the mail and remove, and horizontal pole (81) one side is passed through spring (83) and recess (13) inner wall connection.

4. An apparatus for office pickup of letters, as set forth in claim 3, wherein: the utility model discloses a motor, including pull subassembly, motor (7) are located inner chamber (12), and motor (7) transmission shaft extends to chassis (1) below, two fine rule (71) and two recess (13) one-to-one, fine rule (71) one end is connected with motor (7) transmission shaft, and fine rule (71) other end links to each other with horizontal pole (81) pin joint end.

5. An apparatus for office pickup of letters, as set forth in claim 1, wherein: the inner chamber (12) in-connection has singlechip (6), singlechip (6) model is STM32F103C8T6, and singlechip (6) are used for controlling each electronic component work.

6. An apparatus for office pickup of letters, as set forth in claim 1, wherein: through grooves (111) are formed in the two sides of the inner cavity (12) relative to the cam (54), and the cam (54) can protrude through the through grooves (111).

7. Use of a device for office collection of letters according to claims 1-6, characterized in that:

step one, when the last employee of the company leaves, the equipment is placed at the door, and a camera (10) of the equipment faces the door;

and step two, the open end of the collecting bag (92) is opened, the open end of the collecting bag (92) is in contact with the inner wall of the fixing frame (91), and the clamp (93) is buckled with the fixing frame (91) so that the collecting bag (92) is clamped between the fixing frame (91) and the clamp (93). Then closing the office door;

when a letter is inserted through the door gap, the camera (10) shoots a picture and transmits the picture to the single chip microcomputer (6), and the single chip microcomputer (6) controls the driving wheels to enable the equipment to move close to the letter after processing the picture transmitted by the camera (10);

and step three, when the equipment is moved to the front of the letter, the motor (7) rotates to enable the thin line (71) to be wound on a bearing seat of the motor (7), and the thin line (71) drives the cross rod (81) to rotate outwards. The spring (83) is elongated. Then the motor (7) stops rotating, the spring (83) contracts to drive the cross rod (81) to reset, and the cross rod (81) pushes letters;

pushing the letter to the lower part of the connecting rod (2) by repeating the operation of the third step, then discharging a rope (53) by rotating the motor (51), resetting the volute spiral spring (21) to enable the connecting rod (2) to turn downwards, enabling the sucker (3) at the end part of the connecting rod (2) to be in contact with the letter, and then exhausting air by the air pump (4) to enable the letter to be adsorbed by the sucker (3);

step five, then the motor (51) rotates reversely, the rope (53) is wound on a transmission shaft of the motor (51), and the rope (53) lifts the connecting rod (2) to enable the connecting rod (2) to turn upwards;

and sixthly, the connecting rod (2) is turned upwards to pass through the grating (14), the air pump (4) stops working, the sucking disc (3) and the letter lose suction force, the connecting rod (2) just inclines towards the collecting bin (9), and therefore the collecting bin (9) is thrown into the collecting bag (92).

Technical Field

The invention relates to the technical field of office equipment, in particular to equipment for receiving letters in an office and a using method.

Background

In recent years, with the rapid development of the logistics industry, express services are on a high-speed growth trend. In the express delivery process, it often appears that the courier arrives at the office of a company in the morning, and finds that the office of the company is not opened. At this time, the courier can directly scatter the letter from the door crack.

Therefore, an express cabinet is disclosed in the Chinese patent network, and the patent number is 201520584850.0. The device comprises a cabinet body, wherein a cabinet door is arranged on the cabinet body. The cabinet is fixed at a designated position. When the letter box works, a courier opens the cabinet door and directly puts letters in the box. And then the person retrieves the letter.

But above-mentioned device has some shortcomings, and express delivery cabinet structure is simple relatively. The express cabinet is easy to damage, and once the express cabinet is damaged, the safety of letters can be greatly reduced. And the traditional express delivery is to insert letters into the door gaps. But in doing so, letters are randomly placed in the doorway. A person opening the door will easily push aside, which in turn causes the letter to be jammed in a corner. This can result in the letter not being visible to the person and the letter not being delivered to the recipient in a timely manner. And thus may have an impact on office work.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides equipment for receiving letters in an office and a using method thereof, and solves the problems that the common letter receiving mode in the office in the background art is troublesome, letters cannot be seen by people easily, letters cannot be delivered to recipients timely, and the office work is influenced to a certain extent.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an apparatus for office collection of letters comprises a chassis and a drive wheel mounted on the bottom of the chassis. The chassis front end has seted up the standing groove, and the pivot has connect the connecting rod in the standing groove, and connecting rod and standing groove pivot end are connected with volute spiral spring, and the connecting rod front end is connected with the sucking disc. The suction surface of the suction cup faces downwards. The sucking disc is used for contacting letters, an air pump is connected to the placing groove, and a leather hose is connected between the air pump and the sucking disc. The air pump is used for sucking the letters by the sucking disc. The chassis top is connected with the camera near front end department, and the chassis top is connected with the grating, and the grating is located the standing groove rear. The rear end of the chassis is provided with a collecting bin. An inner cavity is formed in the chassis, two overturning components are arranged in the inner cavity and correspond to two ends of the connecting rod one to one, one end of each overturning component penetrates through the inner cavity to be connected with the end portion of the connecting rod, and each overturning component is used for driving the connecting rod to overturn. When the connecting rod turns over and passes through the grating, the air pump stops working to throw the letters into the collecting bin. The flipping assembly includes a motor, a guide wheel, a cable, and a cam. The motor is located the inner chamber, and the leading wheel pin joint is on the inner wall of inner chamber, and the cam is established at the connecting rod tip, and rope one end is connected with the motor drive shaft. The other end of the rope extends out of the chassis through the guide wheel and is connected with the cam bulge.

Preferably, collect the storehouse including fixed frame, collection bag and clamp, fixed frame is established on the chassis, collects bag open end cover in fixed frame, clamp and fixed frame lock, clamp are used for the fixed bag of collecting.

Preferably, both sides of the bottom of the chassis are provided with grooves, the grooves are close to the front end of the chassis, the arrangement component is connected in the grooves, the inner cavity is internally provided with a dragging component, and the dragging component extends to the outside of the chassis and is connected with the arrangement component. The arrangement assembly comprises a cross rod, a sponge plate and a spring, and one end of the cross rod is pivoted in the groove. The other end of the cross rod extends to the front of the chassis, and the sponge plate is connected below the cross rod. The sponge board can promote the mail and remove, and horizontal pole one side is passed through spring and recess inner wall and is connected.

Preferably, it comprises motor and two fine rules to drag the subassembly, and the motor is located the inner chamber, and motor drive shaft extends to chassis below, two fine rules and two recess one-to-one, fine rule one end is connected with motor drive shaft, and the fine rule other end links to each other with horizontal pole pin joint end.

Preferably, the inner chamber is internally connected with a single chip microcomputer, the type of the single chip microcomputer is STM32F103C8T6, and the single chip microcomputer is used for controlling all electronic parts to work.

Preferably, through grooves are formed in the two sides of the inner cavity opposite to the cam, and the cam protrusions can pass through the through grooves.

A method of use of an office letter receiving device:

step one, when the last employee of the company leaves, the equipment is placed at the door, and a camera of the equipment faces the gate.

And step two, opening the opening end of the collecting bag, enabling the opening end of the collecting bag to be in contact with the inner wall of the fixing frame, and then buckling the clamp and the fixing frame to enable the collecting bag to be clamped between the fixing frame and the clamp. Then the office door is closed.

And step two, when the letter is inserted through the door gap, the camera shoots a picture and transmits the picture to the single chip microcomputer, and the single chip microcomputer controls the driving wheel to enable the equipment to move close to the letter after processing the picture transmitted by the camera.

And step three, when the equipment is moved to the front of the letter, the motor rotates to enable the thin wire to be wound on a motor bearing seat, and the thin wire drives the cross rod to rotate outwards. The spring is elongated. Then the motor stops rotating, and the spring contracts to drive the cross rod to reset. The cross bar is made to push the letter.

And step four, pushing the letters to the lower part of the connecting rod by repeating the operation of the step three, then discharging the rope by rotating the motor, enabling the scroll spring to reset to enable the connecting rod to turn downwards, enabling the sucking disc at the end part of the connecting rod to be in contact with the letters, and then enabling the air pump to pump out air to enable the letters to be adsorbed by the sucking disc.

And step five, the motor rotates reversely, the rope is wound on a transmission shaft of the motor, and the connecting rod is lifted by the rope, so that the connecting rod is turned upwards.

And step six, the connecting rod is turned upwards to pass through the grating, the air pump stops working, the sucking disc and the mail lose suction force, the connecting rod just inclines towards the collecting bin, and therefore the collecting bin is thrown into the collecting bag.

(III) advantageous effects

The invention provides equipment for office letter receiving and a using method thereof. The method has the following beneficial effects:

1. this an equipment for office receives mail, through the cooperation between connecting rod, sucking disc and the air pump, the connecting rod overturns downwards and makes the sucking disc catch the mail. The effect of grabbing the letter is achieved. And the connecting rod is lifted upwards by the cooperation of the motor, the rope and the cam. By means of the cooperation of the grating and the air pump, the connecting rod stops sucking air through the grating air pump, and accordingly letters are thrown into the collecting bag. The letter collecting device plays a role in collecting letters. The effect of collecting the mails plugged in through the door gap is achieved, and the mails on the office door are prevented from being extruded to corners when the office door is opened on duty. The letter is prevented from being cared by people in corners and cannot be delivered to the receiver in time.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a view showing the internal structure of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2;

FIG. 4 is a schematic view of another angle of the structure of the present invention;

FIG. 5 is a view showing the structure of the collecting chamber according to the present invention;

FIG. 6 is a diagram of the second structural state of the present invention.

In the figure: 1 chassis, 11 standing grooves, 111 through groove, 12 inner chambers, 13 recesses, 14 gratings, 2 connecting rods, 21 volute spring, 3 sucking discs, 4 air pumps, 41 leather hoses, 5 upset subassemblies, 51 motors, 52 leading wheels, 53 ropes, 54 cams, 6 singlechips, 7 motors, 71 fine lines, 8 arrangement subassemblies, 81 horizontal rods, 82 sponge boards, 83 springs, 9 collection bins, 91 fixed frames, 92 collection bags, 93 clamps, 10 cameras.

Detailed Description

The embodiment of the invention provides equipment for collecting letters in an office and a using method thereof, and as shown in figures 1-6, the equipment comprises a chassis 1 and a driving wheel arranged at the bottom of the chassis 1, wherein a battery is fixedly arranged on the chassis 1. The driving wheel and the battery are conventional technical means and are not described in detail. The front end of the chassis 1 is provided with a placing groove 11, and a connecting rod 2 is pivoted in the placing groove 11. The connecting rod 2 is T-shaped, and two ends of the connecting rod are pivoted with the inner wall of the placing groove 11. The connecting rod 2 is connected with a scroll spring 21 at the pivoting end of the placing groove 11. The inner end of the spiral spring 21 is welded with the surface of the pivot joint end of the connecting rod 2, and the outer end of the spiral spring 21 is welded with the inner wall of the placing groove 11. The spiral spring 21 contracts when the link 21 is flipped up.

The front end of the connecting rod 2 is fixedly provided with a sucker 3. The suction cup 3 is suction side down as shown in figure 1. The sucking disc 3 is used for contacting letters, and the air pump 4 is fixedly arranged on the placing groove 11. A leather hose 41 is communicated between the air pump 4 and the suction cup 3. When the letter sucking machine works, when the sucking disc 3 is in contact with a letter, the air pump 4 pumps air to generate negative pressure so that the letter is sucked by the sucking disc 3.

The top of the chassis 1 near the front end is fixedly provided with a camera 10. The grating 14 is welded on the top of the chassis 1. The grating 14 is located behind the placement groove 11. The rear end of the chassis 1 is provided with a collecting bin 9. An inner cavity 12 is formed in the chassis 1, two overturning components 5 are arranged in the inner cavity 12, and the two overturning components 5 correspond to two ends of the connecting rod 2 one by one. One end of the overturning component 5 penetrates through the inner cavity 12 to be connected with the end part of the connecting rod 2, and the overturning component 5 is used for driving the connecting rod 2 to overturn. When the device works, the turnover component 5 is utilized to drive the connecting rod 2 to turn upwards, because a letter is sucked by the sucking disc 3, the letter moves along with the connecting rod 2, and when the connecting rod 2 passes through the grating 14, the air pump 4 stops working. Since the air pump 4 stops operating, the suction cup 3 no longer has suction. And the front end of the connecting rod 2 just faces the collecting bin 9 at the moment, so that the letters are thrown into the collecting bin 9.

According to the above, the length of the connecting rod 2 and the position of the collecting bin 9 are adjusted and designed in actual conditions, and the letters can be thrown into the collecting bin 9.

The flipping module 5 includes a motor 51, a guide wheel 52, a rope 53, and a cam 54. The motor 51 is welded within the inner cavity 12. The guide wheel 52 is pivoted on the inner wall of the inner cavity 12, the cam 54 is sleeved on the end part of the connecting rod 2, and the cam 54 is welded with the end part of the connecting rod 2. One end of the rope 53 is fixedly bound with the transmission shaft of the motor 51. The other end of the rope 53 extends out of the chassis 1 through the guide wheel 52 and is fixedly bound with the cam 54. In operation, the motor 51 is rotated to wind the cable 53 around the drive shaft of the motor 51. The rope 53 pulls the cam 54 to rotate downwards, and drives the connecting rod 2 to turn upwards. Similarly, when the motor 51 rotates in the reverse direction, the link 2 is turned downward by the gravity of the link 2 and the elastic force of the spiral spring 21, and the rope 53 is pulled out.

In the initial state, the rod 2 itself is flipped up past the grating 14. At this time, the spiral spring 21 is contracted, and the motor 51 draws the rope 53. When the motor 51 rotates in reverse before the apparatus is moved to a letter, the spiral spring 21 is restored to turn the link 2 downward.

Collect storehouse 9 including fixed frame 91, collection bag 92 and clamp 93, fixed frame 91 welds on chassis 1, collects bag 92 open end cover in fixed frame 91, clamp 93 and fixed frame 91 lock, and clamp 93 is used for fixed collection bag 92.

Compared with the prior art, the equipment for collecting the letters in the office has the advantages that through the cooperation between the connecting rod 2, the sucking disc 3 and the air pump 4, the connecting rod 2 is turned downwards to enable the sucking disc 3 to suck the letters. The effect of grabbing the letter is achieved. The link 2 is lifted upward by the cooperation of the motor 51, the rope 53 and the cam 54. By means of the grating 14 in cooperation with the air pump 4, the rod 2 is caused to stop sucking air by the air pump 4 through the grating 14, thereby throwing the letter into the collecting bag 92. The letter collecting device plays a role in collecting letters. The effect of collecting the mails plugged in through the door gap is achieved, and the mails on the office door are prevented from being extruded to corners when the office door is opened on duty. The letter is prevented from being cared by people in corners and cannot be delivered to the receiver in time.

Recess 13 has been seted up to 1 bottom both sides on chassis, and recess 13 is close to 1 front end on chassis, and recess 13 in-connection has arrangement subassembly 8, is equipped with in the inner chamber 12 and pulls the subassembly, and it is connected with arrangement subassembly 8 outward to pull the subassembly to extend to chassis 1. The tidying assembly 8 comprises a cross bar 81, a sponge plate 82 and a spring 83, wherein one end of the cross bar 81 is pivoted in the groove 13. The other end of the cross bar 81 extends to the front of the chassis 1, and the sponge plate 82 is fixedly bonded below the cross bar 81. The sponge plate 82 can push the letter to move, and one side of the cross bar 81 is welded with one end of the spring 83. The other end of the spring 83 is welded with the inner wall of the groove 13. In operation, the two bars 81 are pivoted outwardly by the pulling assembly, and the spring 83 is stretched. By stopping the operation of the pulling assembly, the spring 83 is contacted with the elastic force of the spring 83, the spring 83 pulls the cross rod 81 back, and by repeating the operation, the cross rod 81 swings back and forth, so that the letter is pushed to the right front of the chassis 1, namely below the connecting rod 2.

The dragging assembly comprises a motor 7 and two thin lines 71, the motor 7 is fixedly installed in the inner cavity 12, a transmission shaft of the motor 7 extends to the lower side of the chassis 1, the two thin lines 71 correspond to the two grooves 13 one to one, one end of each thin line 71 is fixedly bound with the transmission shaft of the motor 7, and the other end of each thin line 71 is fixedly bound with a pin joint end of the cross rod 81. When the device works, the motor 7 rotates to enable the thin wire 71 to be wound on the transmission shaft, and the transverse rod 81 is driven to move outwards. When the motor 7 stops operating, the elastic force of the spring 83 is contacted, so that the thin wire 71 is pulled out again.

Utilize the arrangement subassembly 8 to carry out preliminary arrangement to the mail, stir back and forth through two horizontal poles 81 for sponge board 82 stirs the link 2 dead ahead to the mail. Therefore, the letters scattered on the ground are stacked together, the equipment can conveniently grab the letters, and the letter collecting efficiency is improved.

The inner cavity 12 is welded with a singlechip 6. The type of the singlechip 6 is STM32F103C8T6, and the singlechip 6 is used for controlling each electronic part to work.

As can be seen from fig. 2, through slots 111 are formed on both sides of the inner cavity 12 opposite to the cam 54, and the cam 54 can protrude through the through slots 111. The cam 54 is prevented from being protruded to contact with the inner wall of the placing groove 12, thereby restricting the movement of the link 2.

A method of use of an office letter receiving device:

step one, after work, when the last employee of the company leaves, the equipment is placed at the door, and the camera 10 of the equipment faces the door. This facilitates the camera 10 to capture the image of a letter inserted into the office through the gap under the door. The letter is plugged into the door slot, and the whole letter passes through the door slot from the outside to the inside of the door, but not from the outside to the inside.

And step two, opening the open end of the collecting bag 92, contacting the open end of the collecting bag 92 with the inner wall of the fixing frame 91, and buckling the hoop 93 with the fixing frame 91 so that the collecting bag 92 is clamped between the fixing frame 91 and the hoop 93. Then the office door is closed.

And step two, when the letter is completely inserted into the gap under the door. The camera 10 shoots pictures and transmits the pictures to the single chip microcomputer 6, and the single chip microcomputer 6 controls the driving wheels to enable the equipment to move close to letters after processing the pictures transmitted by the camera 10.

And step three, when the equipment is moved to the front of the letter, the motor 7 rotates to enable the thin wire 71 to be wound on a bearing seat of the motor 7, and the thin wire 71 drives the cross rod 81 to rotate outwards. The spring 83 is elongated. Then the motor 7 stops rotating, and the spring 83 contracts to drive the cross bar 81 to reset. Repeatedly poking through the two cross rods 81 slowly pokes the letter to the lower part of the connecting rod 2.

And step four, pushing the letter to the lower part of the connecting rod 2 by repeating the operation of the step three, and then, the motor 51 rotates to discharge the rope 53. The volute spiral spring 21 is reset to enable the connecting rod 2 to turn downwards, so that the sucking disc 3 at the end part of the connecting rod 2 is in contact with the letter, then the air pump 4 pumps air, and negative pressure is generated between the sucking disc 3 and the letter. The letter is sucked by the suction cup 3.

Step five, then the motor 51 rotates reversely, so that the rope 53 is wound on the transmission shaft of the motor 51, and the rope 53 lifts the connecting rod 2, so that the connecting rod 2 turns upwards.

And step six, the connecting rod 2 is turned upwards to pass through the grating 14, the air pump 4 stops working, the sucking disc 3 and the letter lose suction force, at the moment, the connecting rod 2 just inclines towards the collecting bin 9, and therefore the collecting bin 9 is thrown into the collecting bag 92.

The working principle is as follows: when in use, the connecting rod 2 is put down to enable the sucking disc 3 to be in contact with letters, and the air pump 4 is used for pumping air to generate negative pressure to enable the letters to be sucked by the sucking disc 3. The motor 51 is then rotated to wind the cable 53 around the motor 51 drive shaft. The rope 53 pulls the cam 54 to rotate downwards, and drives the connecting rod 2 to turn upwards. The letter follows the link 2. The air pump 4 stops working when the connecting rod 2 passes through the grating 14. The suction cup 3 no longer has suction. And the front end of the connecting rod 2 just faces the collecting bin 9 at the moment, so that the letters are thrown into the collecting bin 9.

In summary, the device for collecting letters in offices makes the sucker 3 suck letters by the connection rod 2 turning downwards through the cooperation between the sucker 3 and the air pump 4. The effect of grabbing the letter is achieved. The link 2 is lifted upward by the cooperation of the motor 51, the rope 53 and the cam 54. By means of the grating 14 in cooperation with the air pump 4, the rod 2 is caused to stop sucking air by the air pump 4 through the grating 14, thereby throwing the letter into the collecting bag 92. The letter collecting device plays a role in collecting letters. The effect of collecting the mails plugged in through the door gap is achieved, and the mails on the office door are prevented from being extruded to corners when the office door is opened on duty. The letter is prevented from being cared by people in corners and cannot be delivered to the receiver in time.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.