Foot-operated door opening device and foot-operated door opening method

Abstract

The present invention relates to a foot-operated door opening device and a foot-operated door opening method, which include a bottom drive assembly and a door shaft with a lower end rotatably arranged on the bottom drive assembly; a door panel is arranged on the door shaft; the bottom drive assembly includes an equipment casing fixed on the ground; a bearing fixing seat is vertically arranged in the equipment casing; the door shaft is swingably arranged in the bearing fixing seat through a rotating support member; the present invention has a reasonable design, a compact structure and is easy to use.

Description

Technical Field

[0001] The invention relates to a foot-operated door opening device and a foot-operated door opening method. Background Art

[0002] In places with large traffic flow, such as office buildings, there are gates at the entrances and exits. In these places, people generally do not carry large luggage and need to pass through quickly to avoid crowds. Especially during rush hours, how to achieve quick passage has become a technical problem that urgently needs to be solved. Currently, there are many gates on the market that use facial recognition or card swipe recognition.

[0003] Therefore, for situations where people don't carry large, dragging luggage like suitcases or carts, the current non-powered, automatic reset doors used in such situations typically require manual pushing or physical contact while moving forward to push the door open. These automatic reset doors present two major issues: People prioritize public health and safety, avoiding touching surfaces like public facilities; and, as entrance doors, they generally prohibit exiting through them. However, due to their functional limitations, people inside can exit by pulling the door in the opposite direction.

[0004] Based on the above two problems, a foot-operated door opening device is designed. By stepping on a marked door opening pedal on the ground, the door panel is driven to open, thereby avoiding people's hands or bodies from touching the door body, reducing the risk of infection from bacteria, viruses or related infectious diseases (especially in hospitals), and people can pass through smoothly in a state similar to normal walking, with a better experience; to address the problem of people who have entered the designated area coming out in the opposite direction, this device is designed with a locking mechanism, which can only be unlocked by stepping on the door opening pedal, and can continue to drive the door body to open, but cannot be turned to open by hand. Summary of the Invention

[0005] The technical problem to be solved by the present invention is generally to provide a foot-operated door opening device and a foot-operated door opening method.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is:

[0007] In order to realize the design of a one-way foot-operated door opening and closing device, a foot-operated door opening device includes a bottom drive assembly and a door shaft with a lower end rotatably arranged on the bottom drive assembly;

[0008] A door panel is arranged on the door shaft;

[0009] The bottom drive assembly includes an equipment housing secured to the ground;

[0010] A bearing fixing seat is vertically arranged in the equipment housing; the door shaft is swingably arranged in the bearing fixing seat through a rotating support;

[0011] A return compression spring guide rod is horizontally arranged in the device housing; a return compression spring guide sleeve is installed on the return compression spring guide rod, and a return compression spring connected to the return compression spring guide sleeve is sleeved on the return compression spring guide rod;

[0012] A rack connecting block with a rack mounted on its side is horizontally arranged in the equipment housing;

[0013] A gear meshing with the rack is provided on the door shaft;

[0014] A door opening pedal is hingedly connected to the equipment housing;

[0015] The door opening pedal drives the rack connecting block to move horizontally through the transmission assembly, thereby driving the door shaft to swing to a set angle.

[0016] As a further improvement of the above technical solution:

[0017] In order to achieve power transmission, the transmission assembly includes a longitudinal linear guide rail arranged in the equipment housing; a slider on the linear guide rail is arranged at the lower end of the rack connecting block;

[0018] The rack connecting block has a right-side bevel;

[0019] The right side of the inclined surface is equipped with a driving roller;

[0020] The driving roller is connected to the connecting rod slider A through the pin A;

[0021] A spring seat is provided on the connecting rod slider A; a buffer spring is provided on the spring seat, and the buffer spring is connected to a buffer guide rod;

[0022] The buffer guide rod is hinged to the driving connecting rod through the pin B;

[0023] A connecting rod seat is provided at the lower part of the door opening pedal, which is used to hinge the other end of the driving connecting rod through the pin C.

[0024] In order to achieve smooth movement, the connecting rod slider A further includes a connecting rod member and sliding members arranged at both ends of the connecting rod member; the sliding members are equipped with longitudinal guide rails.

[0025] In order to achieve automatic tilting, a torsion spring support provided on the device housing is provided on one side of the root of the door opening pedal, a rotating shaft is provided transversely on the torsion spring support, and a torsion spring member is provided on the rotating shaft;

[0026] One end of the torsion spring supports the bottom surface of the door opening pedal and the other end supports the bottom surface of the device housing;

[0027] The root of the door opening pedal is hinged to the torsion spring support through a hinge.

[0028] In order to realize the position swing drive and position limitation, a limit assembly is set in the equipment housing;

[0029] The position limiting assembly includes a door shaft locking rod provided on the door shaft;

[0030] The end of the door shaft locking rod has a guiding slope;

[0031] There is a long unlocking rod swinging on one side of the door shaft locking rod;

[0032] A tension spring base is provided below the unlocking long rod;

[0033] One end of the unlocking rod abuts against the back of the door shaft locking rod;

[0034] One end of the unlocking rod is an elbow with a guide surface;

[0035] The other end of the unlocking rod is equipped with an unlocking slider with a lifting setting;

[0036] An unlocking roller and an unlocking protrusion are respectively provided at both ends of the unlocking slider; the unlocking protrusion is used to abut the other end of the unlocking long rod;

[0037] The unlocking roller is set on the unlocking slider through the pin D;

[0038] The unlocking roller is used to contact the door opening pedal after being pressed down;

[0039] An unlocking compression spring located on a tension spring base is provided below the unlocking slider;

[0040] When the door panel is closed, the door opening pedal is set up.

[0041] In order to achieve the unlocking limit, a guide hole is provided on the unlocking slider; an unlocking guide column provided on the tension spring base is matched in the guide hole;

[0042] An unlocking tension spring is connected between the unlocking long rod and the tension spring base, and the unlocking tension spring generates a spring force that causes the other end of the unlocking long rod to move away from the unlocking protrusion;

[0043] In order to achieve swing limit, a support block A and a long support block B are set under the door opening pedal;

[0044] A side pad and a middle pad corresponding to the support block A and the long support block B are provided on the back of the door opening pedal.

[0045] A limit seat A and a limit seat B are respectively provided at the starting end and the end end of the connecting rod stroke;

[0046] The equipment housing includes a housing base; sheet metal covers A and C are provided at both ends of the housing base;

[0047] A sheet metal cover B is provided on the side of the housing base;

[0048] An anti-slip rubber pad is provided on the upper surface of the door opening pedal;

[0049] The side of the door opening pedal is provided with spandex high-elastic fabric.

[0050] In order to achieve support, a top support assembly is provided on the upper part of the door shaft and is installed on a fixed wall or enclosure.

[0051] In order to provide a door opening control method, a foot-operated door opening method is provided, which uses a foot-operated door opening device; the door opening method includes the following steps; S1, when no one passes, the door panel is closed, and the door opening pedal at the bottom is in an inclined state, inclined 30 degrees to the ground.

[0052] As a further improvement of the above technical solution:

[0053] When someone passes by, step on the door opening pedal according to the instructions on the door panel or the door opening pedal. The door opening pedal drives the internal mechanism to move, the door opening pedal runs to a horizontal state, and the door panel opens clockwise.

[0054] After the door is opened, the passerby steps forward with his other foot, continues to move forward, lifts the foot on the door opening pedal, steps forward, and leaves the passage. The door panel rotates counterclockwise to the closed state and locks under the action of the spring, returning to the state of step S1.

[0055] In step S1 initial state;

[0056] First, under the action of the return compression spring, the rack and gear mesh, generating a counterclockwise rotation torque. The return compression spring presses against the rack connecting block, causing it to maintain a tendency to move to the right. The right inclined surface on the other side of the rack connecting block contacts the driving roller. Then, the driving roller is connected to the connecting rod slider A via the pin A. The connecting rod slider A is connected to the driving connecting rod, thereby applying a pushing force to the door opening pedal, keeping it in a tilted state. Secondly, the torsion spring has the function of overcoming the gravity of the door opening pedal, assisting the door opening pedal in returning to its original position and compensating for the elastic force of the return compression spring.

[0057] In step S2, when the door panel is in the closed state, it cannot be opened by pushing or pulling the door panel manually. The only way to unlock the door panel is to step on the door pedal and drive the door panel to open.

[0058] When a person passes by and starts to step on the door opening pedal, first, it is buffered by the buffer spring and the buffer guide rod; then, after the door opening pedal is stepped on to a set stroke, the door opening pedal presses on the unlocking roller; secondly, the unlocking slider moves downward, causing the unlocking protrusion on the unlocking slider to move downward, thereby pushing the unlocking rod to rotate clockwise to a set angle, so that the door shaft locking rod is free from the restriction of the unlocking rod. At the same time, the buffer guide rod compresses the buffer spring; thirdly, after unlocking, the door opening pedal continues to be stepped on, and the driving connecting rod continues to push, transmitting power to the rack and gear, thereby causing the door panel to open;

[0059] When the door panel is fully opened, the door opening pedal is limited by support block A and long support block B, providing support for the door opening pedal to ensure the stability of the structure and the safety experience of fellow passengers.

[0060] Return to the initial state; first, the passer-by steps on the door opening pedal with one foot. When the door panel opens, the passer-by continues to move forward and steps out with the other foot. Then, the passer-by lifts the foot on the door opening pedal and steps forward to leave the passage. Under the elastic action of the reset compression spring, buffer spring, torsion spring and unlocking compression spring, the door opening pedal returns to its initial state.

[0061] The invention has reasonable design, low cost, durability, safety and reliability, simple operation, time and labor saving, money saving, compact structure and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a schematic diagram of the door entrance structure of the present invention.

[0063] Figure 2 It is a schematic diagram of the door shaft structure of the present invention.

[0064] Figure 3 It is a schematic structural diagram of the return compression spring of the present invention.

[0065] Figure 4 It is a schematic structural diagram of a door opening pedal of the present invention.

[0066] Figure 5 It is a schematic diagram of the use structure of the buffer guide rod of the present invention.

[0067] Figure 6 It is a schematic structural diagram of the rotary support member of the present invention.

[0068] Figure 7 It is a schematic structural diagram of the unlocking long rod of the present invention.

[0069] Figure 8 It is a schematic diagram of the sheet metal cover structure of the present invention.

[0070] Figure 9 It is a schematic diagram of the exploded structure of the bearing fixing seat of the present invention.

[0071] Figure 10 It is a schematic diagram of the explosive use structure of the connecting rod seat of the present invention.

[0072] Among them: 1. Door shaft; 2. Rotating support; 3. Bearing fixing seat; 4. Gear; 5. Rack; 6. Reset compression spring guide sleeve; 7. Reset compression spring; 8. Reset compression spring guide rod; 9. Rack connecting block; 10. Linear guide; 11. Driving roller; 12. Pin A; 13. Connecting rod slider A; 14. Buffer spring; 15. Buffer guide rod; 16. Pin B; 17. Connecting rod; 18. Spring seat; 19. Guide rail; 20. Driving connecting rod; 21. Connecting rod seat; 22. Pin C; 23. Rotating shaft; 24. Torsion spring; 25. Torsion spring support; 26. Hinge; 27. Unlocking slider; 28. Unlocking roller; 29. ​​Unlocking compression spring; 30. Unlocking guide column; 31. Unlocking tension spring; 32. Tension spring base; 33. Unlocking long rod; 34. Door shaft locking rod; 35. Support block A; 36. Long support block B; 37. Side pad; 38. Middle pad; 39. Door opening pedal; 40. Limit seat A; 41. Limit seat B; 42. Door panel; 43. Top support assembly; 46. Pin D; 47. Unlocking protrusion; 50. Sheet metal cover A; 51. Sheet metal cover B; 52. Sheet metal cover C; 53. Anti-slip rubber pad; 54. Spandex high-elastic fabric. DETAILED DESCRIPTION

[0073] like Figure 1-10 In the embodiment of the present invention, as an illustration of an opening and closing door, the door panel 42 is described in the closed state and the open state:

[0074] 1. When no one is passing, the door panel 42 is closed and the door opening pedal 39 at the bottom is in an inclined state, with a 30-degree inclination to the ground. Figure 1 、 Figure 2 .

[0075] 2. When someone passes by, follow the instructions on the door panel 42 or the door opening pedal 39 and step on the door opening pedal 39. The door opening pedal 39 drives the internal mechanism to operate. When the door opening pedal 39 moves to a horizontal state, the door panel 42 opens clockwise. Figure 3 .

[0076] 3. After the door is opened, the passerby steps forward with his other foot, continues to move forward, lifts the foot on the door opening pedal 39, steps forward, and leaves the passage. The door panel 42 rotates counterclockwise to the closed state and locks under the action of the return spring, returning to the state in step 1 above.

[0077] like Figure 1-10 , the overall structure of the present invention is described in detail;

[0078] 1. Schematic diagram of the main components, which include a bottom drive assembly arranged on the bottom, a door shaft 1 arranged on the bottom drive assembly, a door panel 42 arranged on the side of the door shaft 1 and a top support assembly arranged on the door shaft 1; when the door panel 42 is closed, the door opening pedal is tilted up at 30 degrees.

[0079] 2. Main structural connection instructions

[0080] The bearing fixing seat 3 is fixed on the equipment casing, the rotating support member 2 is installed on the bearing fixing seat 3, and the door shaft 1 is installed on the rotating support member 2 to form a rotating connection.

[0081] The return compression spring guide sleeve 6 is fixed on the equipment housing to limit the return compression spring 7 Figure 1 For the displacement on the left side, the return compression spring guide rod 8 and the return compression spring guide sleeve 6 form a sliding connection.

[0082] The rack connecting block 9 is fixed on the rack 5 at its left side, and its middle part is connected to the slider of the linear guide 10 by screws, and its right inclined surface forms a rolling connection with the driving roller 11.

[0083] The driving roller 11 is in rolling connection with the connecting rod slider A13 via the pin A12.

[0084] The connecting rod slider A13 is slidably connected through the buffer spring 14 and the buffer guide rod 15.

[0085] The driving connecting rod 20 is rotationally connected to the connecting rod slider A13 through the pin B16.

[0086] The driving connecting rod 20 is rotatably connected to the connecting rod seat 21 through the pin C22.

[0087] The hinge 26 is connected to the torsion spring support 25 and the door opening pedal 39 on both sides.

[0088] The unlocking roller 28 is rotationally connected to the unlocking slider 27 via a pin D46.

[0089] The unlocking slide 27 is in sliding connection with two guide rods on the unlocking guide column 30 .

[0090] The unlocking rod 33 is rotatably connected to the guide rod on the tension spring base 32 .

[0091] The unlocking tension spring 31 pulls one end of the unlocking long rod 33 to make it rotate counterclockwise, and the other end presses on the unlocking slider 27 to limit its rotation position.

[0092] When the unlocking slider 27 is pressed down, the unlocking protrusion 47 moves downward, pushing open the unlocking long rod 33, causing it to rotate clockwise a certain angle, and the door shaft locking rod 34 breaks away from the clockwise rotation restriction of the unlocking long rod 33.

[0093] 3. Analysis of main movements

[0094] 1 Initial state

[0095] Under the action of return compression spring 7, rack 5 meshes with gear 4, generating a counterclockwise rotational torque. Return compression spring 7 presses against rack connecting block 9, maintaining its rightward motion. The other side of rack connecting block 9 contacts drive roller 11, which is connected to connecting rod slider A13 via pin A12. Connecting rod slider A13 is connected to drive link 20, thereby applying forward pressure to door opening pedal 39, keeping it tilted 30 degrees. The two torsion springs 24 overcome the weight of the door opening pedal and assist in its return, preventing insufficient elastic force from the return compression spring 7 and ensuring smooth operation of the mechanism.

[0096] 2 Door open state

[0097] When the door device is in the closed state, the door cannot be opened by pushing or pulling the door panel 42, so an in-position locking mechanism is designed in the device, which can only be unlocked by stepping on the door pedal to drive the door panel 42 to open. When the passerby starts to step on the door opening pedal 39, in order to solve the conflicting interference problem caused by the simultaneous driving of the unlocking mechanism and the connecting rod drive mechanism, a spring buffer mechanism is designed at the connection position of the driving connecting rod 20 and the connecting rod slider A13, that is, a buffer spring 14 and a buffer guide rod 15 are added. In this way, when the door opening pedal is just stepped on a certain stroke, the door opening pedal 39 presses on the unlocking roller 28, and the unlocking slider 27 moves down, causing the unlocking protrusion 47 on the unlocking slider to move down, thereby pushing the unlocking long rod 33 to rotate clockwise by a certain angle, so that the door shaft locking rod 34 is free from the restriction of the unlocking long rod 33. At this time, the buffer guide rod 15 compresses the buffer spring 14 to a certain extent, so that the entire drive mechanism will not eventually press the rack hard on the gear after transmission. After unlocking, the door opening pedal continues to be stepped on, and the driving connecting rod 20 can continue to push the mechanism to move, and the end of the mechanism transmits power to the rack and pinion mechanism, thereby causing the door panel 42 to open.

[0098] After the door panel 42 is fully opened, the state of the bottom drive mechanism is as shown in the figure below. The two support blocks A35 and the long support block B36 are intended to provide support to the door opening pedal 39 when the passers-by step on the door opening pedal, ensuring the stability of the structure and the safety experience of the passers-by.

[0099] 3Restore to initial state

[0100] The passerby steps on the door opening pedal 39 with one foot, and after the door panel 42 opens, he continues to move forward, steps out with the other foot, then lifts the foot that is stepping on the door opening pedal and steps forward to leave the passage. At this time, the entire mechanism moves under the elastic action of the reset compression spring 7, buffer spring 14, torsion spring 24, and unlocking compression spring 29, and the door opening pedal 39 returns to its initial state.

[0101] The buffer spring 14 has a buffer stroke compared to the action when the door opening pedal is stepped on. During this process, since there is no large resistance, the buffer spring 14 can be considered to have a very small virtual stroke, so that the unlocking protrusion 47 can first pass through one end of the unlocking long rod 33, and then the door shaft locking rod 34 is about to return to its initial state. It presses on the other end of the unlocking long rod 33, overcomes the tension of the unlocking tension spring 31, turns to the locking angle, and is locked by the unlocking long rod 33.

[0102] 4 Other structural descriptions

[0103] In addition to the above-mentioned main structures, in order to ensure the normal passage of passers-by, sheet metal covers A50, B51 and C52 need to be installed so that passers-by can pass smoothly with their feet when stepping on the upper surface of the passage. When the door opening pedal 39 is in the bounced state, the highest point is 75 mm from the ground, and when the door opening pedal is completely dropped, the height from the ground is 44 mm. The lower stepping height makes it easier for people to operate.

[0104] The surface of the door opening pedal 39 is installed with an anti-skid rubber pad 53, which can play an anti-skid role. Compared with the surrounding sheet metal materials, it has a more eye-catching reminder effect, and a text logo "Step on the door to open" can be pasted.

[0105] In order to meet the need to prevent large particles of dust and debris from the opening of the door pedal, a spandex high-elastic cloth 54 or other elastic material is used, with one end of the cloth being connected to the door pedal 39 on all sides, and the other end being connected to the sheet metal cover B51 on all sides. When the door pedal is raised to the maximum height, the maximum straight-line distance of the gap at the opening is 36 mm. The use of a high-elastic material with a thickness of about 1 mm can meet the stretching rate requirement. When the door pedal is stepped on, the material can be retracted into the gap around the door pedal (controlled within 5 to 8 mm) without affecting the operation of the mechanism.

[0106] like Figure 1-10, swing drive rotation is achieved through the door shaft 1, rotation support is achieved through the rotating support 2 and the bearing fixing seat 3, gear 4 and rack 5 realize linear motion drive rotation swing, reset compression spring guide sleeve 6, reset compression spring 7, reset compression spring guide rod 8 realize buffering, reset and compatible error of the rack connecting block 9, linear guide rail 10 realizes linear guidance, driving roller 11 uses a 45-degree inclined plane to convert longitudinal motion into lateral drive, pin A12 realizes roller support, connecting rod slider A13 and guide rail 19 realize linear guidance, buffer spring 14, buffer guide rod 15 realize buffering, pin B16 realizes hinged connection, connecting rod member 17 thereby realizes double-rod longitudinal motion, spring seat 18 realizes support for the spring assembly and buffering of the idle distance, driving connecting rod 20, connecting rod seat 21, pin C22 realize linkage, rotating shaft 23, torsion spring member 24, torsion spring support 25, hinge member 26 realizes elastic reset, unlocking slider 27 realizes sliding, unlocking roller 28 realizes rolling When the door is in contact, the compression spring 29 is automatically reset, the guide column 30 is unlocked to realize vertical guidance, the tension spring 31 is unlocked to realize pulling and automatic driving after leaving the limit, the tension spring base 32 is used as a fixed support, the long rod 33 is unlocked to realize swing opening and closing, and limit or no limit is achieved. The door shaft locking rod 34 is set to swing to realize blocking or no blocking. The support block A35, the long support block B36, the side pad 37, and the middle pad 38 realize the limit support and buffering after the foot pedal is pressed down. The door opening pedal 39 can be There are instructions to facilitate people to control the stepping. The limit seat A40 and the limit seat B41 realize the travel limit and can be expanded with a matching limit switch light. The door panel 42 can have instructions on it for blocking. The top support component 43 improves the force structure and realizes two-point support. The pin shaft D46 realizes support. The unlocking protrusion 47 realizes side pushing. The sheet metal cover A50, the sheet metal cover B51, and the sheet metal cover C52 realize protection. The anti-slip rubber pad 53 realizes anti-slip and increases comfort. The spandex high-elastic cloth 54 realizes dust and soil prevention.

[0107] The present invention is fully described for a clearer disclosure, and the prior art is not listed one by one.

[0108] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may be modified or some of the technical features thereof may be replaced with equivalents. It is obvious for those skilled in the art to combine multiple technical solutions of the present invention. However, these modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Any technical content not fully described in this invention is well-known technology.

Claims

1. A foot-operated door opening device, characterized in that: It comprises a bottom drive assembly and a door shaft (1) whose lower end is rotatably arranged on the bottom drive assembly; A door panel (42) is provided on the door shaft (1); The bottom drive assembly includes an equipment housing secured to the ground; A bearing fixing seat (3) is vertically arranged in the equipment housing; the door shaft (1) is swingably arranged in the bearing fixing seat (3) through a rotating support member (2); A return compression spring guide rod (8) is transversely arranged in the device housing; a return compression spring guide sleeve (6) is installed on the return compression spring guide rod (8); and a return compression spring (7) connected to the return compression spring guide sleeve (6) is sleeved on the return compression spring guide rod (8); A rack connecting block (9) with a rack (5) mounted on its side is laterally arranged in the device housing; A gear (4) meshing with a rack (5) is provided on the door shaft (1); A door opening pedal (39) is hingedly connected to the device housing; The door opening pedal (39) drives the rack connecting block (9) to move laterally through the transmission assembly, thereby driving the door shaft (1) to swing to a set angle; the transmission assembly includes a longitudinal linear guide rail (10) arranged in the device housing; a slider on the linear guide rail (10) is arranged at the lower end of the rack connecting block (9); The rack connecting block (9) has a right side inclined surface; The right side inclined surface is equipped with a driving roller (11); The driving roller (11) is connected to a connecting rod slider A (13) via a pin A (12); A spring seat (18) is provided on the connecting rod slider A (13); a buffer spring (14) is provided on the spring seat (18), and the buffer spring (14) is connected to a buffer guide rod (15); The buffer guide rod (15) is hingedly connected to a driving connecting rod (20) via a pin B (16); A connecting rod seat (21) is provided at the lower portion of the door opening pedal (39) for articulating the other end of the driving connecting rod (20) via a pin C (22); A limit assembly is provided in the device housing; The limiting assembly comprises a door shaft locking rod (34) arranged on the door shaft (1); The end of the door shaft locking rod (34) has a guiding inclined surface; An unlocking long rod (33) is swung on one side of the door shaft locking rod (34); A tension spring base (32) is provided below the unlocking rod (33); One end of the unlocking rod (33) abuts against the back of the door shaft locking rod (34); One end of the unlocking rod (33) is an elbow with a guide surface; The other end of the unlocking rod (33) is equipped with an unlocking slider (27) with a lifting arrangement; An unlocking roller (28) and an unlocking protrusion (47) are respectively provided at both ends of the unlocking slider (27); the unlocking protrusion (47) is used to abut against the other end of the unlocking long rod (33); The unlocking roller (28) is arranged on the unlocking slider (27) via a pin D (46); The unlocking roller (28) is used to contact the door opening pedal (39) after being pressed down; An unlocking compression spring (29) is provided below the unlocking slider (27) and is located on a tension spring base (32); When the door panel (42) is closed, the door opening pedal (39) is tilted upward.

2. The foot-operated door opening device according to claim 1, characterized in that: The connecting rod slider A (13) further includes a connecting rod member (17) and sliding members arranged at both ends of the connecting rod member (17); the sliding members are equipped with longitudinal guide rails (19).

3. The foot-operated door opening device and foot-operated door opening method according to claim 1, characterized in that: A torsion spring support (25) provided on the device housing is provided on one side of the root of the door opening pedal (39), a rotating shaft (23) is transversely provided on the torsion spring support (25), and a torsion spring member (24) is provided on the rotating shaft (23); One end of the torsion spring member (24) supports the bottom surface of the door opening pedal (39) and the other end supports the bottom surface of the device housing; The door opening pedal (39) is hinged to the torsion spring support (25) through a hinge member (26) at its root.

4. The foot-operated door opening device according to claim 1, characterized in that: A guide hole is provided on the unlocking slider (27); an unlocking guide post (30) provided on the tension spring base (32) is provided in the guide hole; An unlocking tension spring (31) is connected between the unlocking long rod (33) and the tension spring base (32), and the unlocking tension spring (31) generates a spring force that causes the other end of the unlocking long rod (33) to move away from the unlocking protrusion (47); A support block A (35) and a long support block B (36) are provided below the door opening pedal (39); A side pad (37) and a middle pad (38) corresponding to the support block A (35) and the long support block B (36) are provided on the back of the door opening pedal (39).

5. The foot-operated door opening device according to claim 2, characterized in that: A limit seat A (40) and a limit seat B (41) are respectively provided at the starting end and the end end of the stroke of the connecting rod (17); The device housing includes a housing base; a sheet metal cover A (50) and a sheet metal cover C (52) are provided at both ends of the housing base; A sheet metal cover B (51) is provided on the side of the housing base; An anti-slip rubber pad (53) is provided on the upper surface of the door opening pedal (39); A spandex high-elastic cloth (54) is provided on the side of the door opening pedal (39).

6. The foot-operated door opening device and foot-operated door opening method according to claim 1, characterized in that: A top support assembly (43) is provided on the upper portion of the door shaft (1).

7. A foot-operated door opening method, characterized in that: With the aid of the foot-operated door opening device according to any one of claims 1 to 6; the door opening method comprises the following steps: S1, when no one is passing, the door panel (42) is closed, and the door opening pedal (39) at the bottom is in an inclined state, inclined at 30 degrees to the ground; S2, when someone passes by, he steps on the door opening pedal (39) according to the instructions on the door panel (42) or the instructions on the door opening pedal (39), and the door opening pedal (39) drives the internal mechanism to operate, the door opening pedal (39) runs to a horizontal state, and the door panel (42) opens clockwise; S3, after the door is opened, the passerby steps forward with his other foot, continues to move forward, lifts the foot on the door opening pedal (39), steps forward, and leaves the passage. The door panel (42) rotates counterclockwise to the closed state and is locked under the action of the spring, returning to the state of step S1.

8. The foot-operated door opening method according to claim 7, wherein: In step S1 initial state; First, under the action of the return compression spring (7), the rack (5) is meshed with the gear (4), generating a counterclockwise rotation torque, and the return compression spring (7) presses the rack connecting block (9) to keep the rack connecting block (9) moving to the right, and the right inclined surface of the other side of the rack connecting block (9) contacts the driving roller (11); then, the driving roller (11) is connected to the connecting rod slider A (13) through the pin shaft A (12), and the connecting rod slider A (13) is connected to the driving connecting rod (20) by transmission, thereby applying a pushing force to the door opening pedal (39), so that the door opening pedal (39) remains in a tilted state; secondly, the torsion spring member (24) has the function of overcoming the gravity of the door opening pedal (39), assisting the door opening pedal (39) to reset, and compensating for the elastic force of the return compression spring (7); In step S2, when the door panel (42) is in a closed state, the door cannot be opened by manually pushing or pulling the door panel (42), and the door panel (42) can only be unlocked by stepping on a door opening pedal, and the door panel (42) is driven to open; When the passerby starts to step on the door opening pedal (39), first, the buffer spring (14) and the buffer guide rod (15) are used for buffering; then, after the door opening pedal (39) is stepped on to set the stroke, the door opening pedal (39) is pressed on the unlocking roller (28); secondly, the unlocking slider (27) moves downward, causing the unlocking protrusion (47) on the unlocking slider (27) to move downward, thereby pushing the unlocking rod (33) to rotate clockwise to a set angle, so that the door shaft locking rod (34) is separated from the restriction of the unlocking rod (33), and at the same time, the buffer guide rod (15) compresses the buffer spring (14); thirdly, after unlocking, the door opening pedal (39) continues to be stepped on, driving the connecting rod (20) to continue the pushing action, transmitting the power to the rack (5) and the gear (4), thereby causing the door panel (42) to open; When the door panel (42) is fully opened, the door opening pedal (39) is limited by the support block A (35) and the long support block B (36), providing support for the door opening pedal (39), ensuring the stability of the structure and the safety experience of the passengers. In step S3, the initial state is restored; first, the passer-by steps on the door opening pedal (39) with one foot, and when the door panel (42) is opened, the passer-by continues to move forward and steps out with the other foot; then, the passer-by lifts the foot that was stepped on the door opening pedal and steps forward to leave the passage, and under the elastic action of the return compression spring (7), the buffer spring (14), the torsion spring (24), and the unlocking compression spring (29), the door opening pedal (39) is restored to the initial state.

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