Automatic door opening device

Abstract

The application belongs to the technical field of containers, and discloses an automatic door opening and closing device, which comprises a pressing block and a box body, and the pressing block is provided with a working surface; the box body comprises a box main body, an elastic assembly, a pressing wheel assembly and a linkage rod, the box main body is provided with a box door, the elastic assembly is arranged on the box main body, the pressing wheel assembly is slidingly arranged on the elastic assembly, one end of the pressing wheel assembly is in abutment with the working surface, and the linkage rod is connected between the other end of the pressing wheel assembly and the box door; when relative movement occurs between the pressing block and the box body, the pressing wheel assembly can reciprocate along the vertical direction under the elastic force of the working surface and the elastic assembly, and can drive the box door to reciprocate along the first horizontal direction through the linkage rod, so as to open and close the box main body. The automatic door opening and closing device can realize automatic opening or closing of the box door without using electricity or hydraulic pressure as a power source, avoids using an additional power source, is stable and reliable in structure, and reduces production cost and maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of cargo box technology, and more particularly to an automatic door opening and closing device. Background Technology

[0002] Currently, the doors of cargo containers are mainly driven by electric, hydraulic or pneumatic power sources to open and close. However, in deep-sea environments, seawater pressure is proportional to depth. The pressure in deep sea is high and there are also ocean currents. Electrical or hydraulic drive components are easily damaged, and maintenance of parts is difficult in deep-sea environments. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic door opening and closing device that can automatically open or close the cargo box without using electricity or hydraulics as a power source, avoiding the use of an additional power source, with a stable and reliable structure, and reducing production and maintenance costs.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] Automatic door opening and closing device, including:

[0006] A pressure block, wherein the pressure block is provided with a working surface;

[0007] The box body includes a main body, an elastic component, a pressure roller assembly, and a linkage rod. The main body is provided with a door, which is slidably mounted on the main body along a first horizontal direction. The elastic component is mounted on the main body, and the pressure roller assembly is slidably mounted on the elastic component along a vertical direction. One end of the pressure roller assembly can abut against the working surface. The linkage rod connects the other end of the pressure roller assembly and the door. The pressure roller assembly can reciprocate along the vertical direction under the elastic force of the working surface and the elastic component, and can drive the door to reciprocate along the first horizontal direction through the linkage rod.

[0008] As an alternative, the working surface includes a first inclined plane, a horizontal plane, and a second inclined plane. When the pressure roller assembly moves from the first inclined plane to the horizontal plane, the pressure roller assembly moves downward along the vertical direction and can drive the box door to open. When the pressure roller assembly moves from the horizontal plane to the second inclined plane, the pressure roller assembly moves upward along the vertical direction and can drive the box door to close.

[0009] As an optional solution, the pressure roller assembly includes a guide block, a guide shaft, and a rolling roller. The guide block is slidably disposed on the elastic component, the guide shaft is fixedly disposed on the guide block, and the rolling roller is rotatably disposed at one end of the guide shaft, and the rolling roller abuts against the working surface.

[0010] As an optional embodiment, the linkage includes an upper connecting rod and a lower connecting rod arranged at an angle. The connection between the upper connecting rod and the lower connecting rod is rotatably connected to the box body. The pressure roller assembly also includes a connecting block, which is rotatably connected to the other end of the guide shaft. The connecting block is provided with a insertion hole, into which the upper connecting rod is inserted. The lower connecting rod is slidably connected to the box door. When the pressure roller assembly reciprocates along the vertical direction, the guide shaft can drive the linkage to rotate, the upper connecting rod reciprocates within the insertion hole, and the lower connecting rod slides on the box door and drives the box door to reciprocate along the first horizontal direction.

[0011] As an alternative, the guide shaft has a clearance elongated hole on the circumferential surface of the other end of the connecting block. The length direction of the clearance elongated hole is perpendicular to the axial direction of the guide shaft. The upper connecting rod can pass through both the insertion hole and the clearance elongated hole. The clearance elongated hole is used to prevent interference between the upper connecting rod and the guide shaft.

[0012] As an alternative, the door is provided with a vertical sliding groove extending along the vertical direction, and a slidable sliding pin is provided in the vertical sliding groove, and the lower connecting rod is fixedly connected to the sliding pin.

[0013] As an alternative, the cabinet door is provided with a door handle, and the vertical sliding groove is provided on the door handle.

[0014] As an optional solution, two of each of the following are provided: the box door, the linkage rod, and the connecting block. Both of the box doors are slidably mounted on the box body, and both of the connecting blocks are located at the other end of the guide shaft. One linkage rod is connected between one of the connecting blocks and one of the box doors, and the other linkage rod is connected between another connecting block and another box door. The two linkage rods can respectively drive the two box doors to move towards each other or away from each other.

[0015] As an optional solution, the elastic component includes a guide seat and an elastic element. The guide seat is fixedly disposed on the box body and is provided with a vertical guide groove extending along the vertical direction. The guide seat is also provided with vertical elongated holes communicating with the vertical guide groove on both sides along the second horizontal direction. The guide block is slidably disposed in the vertical guide groove. The two ends of the guide shaft are slidably limited within the vertical elongated holes on both sides. The elastic element is disposed in the vertical guide groove and sandwiched between the guide block and the bottom of the vertical guide groove.

[0016] As an alternative, the pressure block is fixedly installed, and the housing can move toward the pressure block along the first horizontal direction so that the pressure roller assembly abuts against the working surface.

[0017] The beneficial effects of this invention are:

[0018] This invention provides an automatic door opening and closing device, comprising a pressure block and a box body. The pressure block has a working surface. The box body includes a box body, an elastic component, a pressure roller assembly, and a linkage rod. The box body has a door. The elastic component is disposed on the box body, and the pressure roller assembly is slidably disposed on the elastic component, with one end of the pressure roller assembly abutting against the working surface. The linkage rod connects the other end of the pressure roller assembly to the box door. When relative movement occurs between the pressure block and the box body, the pressure roller assembly can reciprocate vertically under the elastic force of the working surface and the elastic component, and can drive the box door to reciprocate horizontally via the linkage rod to open and close the box body. This automatic door opening and closing device can automatically open or close the box door without using electricity or hydraulics as a power source, avoiding the use of an additional power source. It has a stable and reliable structure and reduces production and maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the automatic door opening and closing device provided in this embodiment of the invention with the door in the closed state;

[0020] Figure 2 This is a schematic diagram of the automatic door opening and closing device provided in this embodiment of the invention, showing the door switching from a closed state to an open state.

[0021] Figure 3 This is a schematic diagram of the automatic door opening and closing device provided in this embodiment of the invention when the door is in the maximum open state;

[0022] Figure 4 This is a schematic diagram of the automatic door opening and closing device provided in this embodiment of the invention, showing the door switching from an open state to a closed state.

[0023] Figure 5 This is a schematic diagram of the structure of the elastic component and the pressure roller assembly involved in the embodiments of the present invention.

[0024] In the picture:

[0025] 1. Pressing block; 11. First inclined plane; 12. Horizontal plane; 13. Second inclined plane;

[0026] 2. Box body; 21. Box door; 211. Door handle; 2111. Sliding pin; 22. Fixing base;

[0027] 3. Elastic component; 31. Guide seat; 32. Elastic element;

[0028] 4. Pressure roller assembly; 41. Guide block; 42. Guide shaft; 421. Clearance elongated hole; 43. Roller roller; 44. Connecting block; 441. Insertion hole;

[0029] 5. Linkage rod; 51. Upper linkage rod; 52. Lower linkage rod. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1-5As shown, this embodiment of the invention provides an automatic door opening and closing device, including a pressure block 1 and a housing, wherein the lower end face of the pressure block 1 in the vertical direction is the working surface; the housing includes a housing body 2, an elastic component 3, a pressure roller assembly 4, and a linkage rod 5. The housing body 2 has a door 21 at its inlet and outlet, with pulley grooves at both the upper and lower ends of the inlet and outlet. The door 21 also has pulleys at both the upper and lower ends, allowing it to slide smoothly within the pulley grooves, thus enabling the door 21 to open or close the inlet and outlet more smoothly in the first horizontal direction; the elastic component 3... The pressure roller assembly 4 is mounted on the main body 2 of the box and slides vertically on the elastic component 3. One end of the pressure roller assembly 4 can abut against the working surface. That is, when the box body and the pressure block 1 move relative to each other, the pressure roller assembly 4 can reciprocate along the trajectory of the working surface in the vertical direction under the elastic force of the elastic component 3. The linkage rod 5 is connected between the other end of the pressure roller assembly 4 and the box door 21. When the pressure roller assembly 4 reciprocates in the vertical direction, the other end of the pressure roller assembly 4 can drive the box door 21 to reciprocate in the first horizontal direction through the linkage rod 5.

[0035] When the automatic door opening and closing device moves relative to the housing and the pressure block 1, the door 21 can automatically open and close. It can achieve automatic opening or closing of the inlet and outlet without the need for electricity or hydraulic power source, avoiding the use of an additional power source. The structure is stable and reliable, and reduces production and maintenance costs.

[0036] In this embodiment, the automatic door opening and closing device can be applied to the underwater assembly line operation environment. The pressure block 1 is set at a fixed position on the seabed, and the box is set on the seabed conveyor belt. The conveyor belt can drive the box to move towards the pressure block 1 along the first horizontal direction. One end of the pressure roller assembly 4 can abut against the working surface of the pressure block 1 to realize the reciprocating motion of the pressure roller assembly 4 in the vertical direction.

[0037] The pressure block 1 is an inverted three-dimensional trapezoidal structure. Its working surface is located at the lower end of the pressure block 1 in the vertical direction. The working surface includes a first inclined surface 11, a horizontal surface 12, and a second inclined surface 13. The first inclined surface 11 and the second inclined surface 13 are symmetrically connected to both sides of the horizontal surface 12. The first inclined surface 11 gradually decreases, and the second inclined surface 13 gradually increases. When the box moves towards the pressure block 1 in the first horizontal direction, that is, at the same time, one end of the pressure roller assembly 4 moves from the first inclined surface 11 to the horizontal surface 12. The pressure roller assembly 4 moves downward in the vertical direction, and the box door 21 moves along the first horizontal direction. The conveyor belt gradually switches from a closed to an open state in the horizontal direction. When the pressure roller assembly 4 comes into contact with the horizontal surface 12, the door 21 opens to its maximum and remains open. It can be understood that the length of the horizontal surface 12 along the first horizontal direction and the speed of the conveyor belt determine the duration the door 21 remains open. When the pressure roller assembly 4 moves from the horizontal surface 12 to the second inclined surface 13, it moves vertically upward under the elastic force of the elastic component 3, causing the door 21 to gradually switch from an open to a closed state along the first horizontal direction. This structure allows the door 21 to open automatically and remain open during assembly line operations, facilitating loading through the inlet and outlet. After loading is complete, the door 21 automatically closes, making it convenient to use.

[0038] like Figure 5 As shown, the pressure roller assembly 4 includes a guide block 41, a guide shaft 42, and a rolling roller 43. The guide block 41 is slidably mounted on the elastic component 3 in a vertical direction. The guide shaft 42 passes through the guide block 41 in a second horizontal direction and is fixedly connected to the guide block 41. The rolling roller 43 is rotatably mounted on the end of the guide shaft 42 near the pressure block 1, and the rolling roller 43 abuts against the working surface. This structure, through the rolling contact between the rolling roller 43 and the working surface, makes the movement of the pressure roller assembly 4 on the working surface of the pressure block 1 smoother. Furthermore, the rolling roller 43 applies a force to the guide block 41 through the guide shaft 42, causing the guide shaft 42 and the guide block 41 to move in a vertical direction.

[0039] The linkage 5 includes an upper connecting rod 51 and a lower connecting rod 52 arranged at an included angle. The connection between the upper connecting rod 51 and the lower connecting rod 52 is rotatably connected to the box body 2. A fixed seat 22 is provided on the box body 2, and a pin is provided on the fixed seat 22. The connection between the upper connecting rod 51 and the lower connecting rod 52 is rotatably mounted on the pin. The pressure roller assembly 4 also includes a connecting block 44, which is rotatably connected to the other end of the guide shaft 42. The connecting block 44 is provided with a insertion hole 441, the axis of which is perpendicular to the axis of the guide shaft 42. The connecting rod 51 is inserted into the insertion hole 441 and can slide within the insertion hole 441. The lower connecting rod 52 is slidably connected to the door 21. When the guide shaft 42 moves downward in the vertical direction, the guide shaft 42 can drive the linkage rod 5 to rotate. That is, the upper connecting rod 51 rotates counterclockwise downward in the vertical direction and extends outward through the insertion hole 441. The lower connecting rod 52 slides on the door 21 in the vertical direction and can drive the door 21 to open. When the guide shaft 42 moves upward in the vertical direction, the linkage rod 5 rotates in the opposite direction. This will not be described in detail here.

[0040] To make the structural design more reasonable, the guide shaft 42 is provided with a clearance elongated hole 421 on the circumferential surface of the other end of the connecting block 44. The length direction of the clearance elongated hole 421 is perpendicular to the axial direction of the guide shaft 42. During installation, the connecting block 44 is sleeved on the guide shaft 42, and the insertion hole 441 and the clearance elongated hole 421 can coincide. The upper connecting rod 51 can pass through both the insertion hole 441 and the clearance elongated hole 421 at the same time. When the guide shaft 42 reciprocates in the vertical direction, the upper connecting rod 51 reciprocates in the insertion hole 441 and can drive the connecting block 44 to rotate. The clearance elongated hole 421 is used to provide a rotatable clearance space for the upper connecting rod 51.

[0041] In this embodiment, there are two of each of the following: door 21, linkage rod 5, and connecting block 44. Two clearance holes 421 are provided on the guide shaft 42, and the two clearance holes 421 are spaced apart along the axial direction of the guide shaft 42. Two connecting blocks 44 are rotatably disposed at the other end of the guide shaft 42, and the insertion holes 441 of the two connecting blocks 44 are respectively corresponding to the two clearance holes 421. The two doors 21 are slidably disposed at the inlet and outlet of the body 2 along the first horizontal direction, and can move towards each other to close the inlet and outlet and move away from each other to open the inlet and outlet. The upper connecting rod 51 of one linkage rod 5 passes through the insertion hole 441 and the clearance hole 421 of one connecting block 44, and the lower connecting rod 52 is connected to one door 21. The upper connecting rod 51 of the other linkage rod 5 passes through the insertion hole 441 and the other clearance hole 421 of the other connecting block 44, and the lower connecting rod 52 is connected to the other door 21. This structure enables the two cabinet doors 21 to open and close automatically, improving practicality.

[0042] Optionally, the door 21 is provided with a vertical sliding groove extending in the vertical direction, and a sliding pin 2111 is provided in the vertical sliding groove. The end of the lower connecting rod 52 away from the upper connecting rod 51 is fixedly connected to the sliding pin 2111. This structure enables the lower connecting rod 52 to drive the door 21 to open and close when rotating around the pin.

[0043] Furthermore, a door handle 211 is provided on the door 21. The door handle 211 is arranged vertically and has a vertical sliding groove. In this structure, the vertical sliding groove is provided on the door handle 211, so that the door handle 211 has a dual function, and the structural design is more reasonable.

[0044] Refer to Figure 5 The elastic component 3 includes a guide seat 31 and an elastic element 32. The guide seat 31 is fixedly mounted on the box body 2 and has a vertical guide groove extending in the vertical direction. The guide seat 31 also has a vertical elongated hole communicating with the vertical guide groove along the second horizontal direction. The guide block 41 is slidably mounted in the vertical guide groove. The two ends of the guide shaft 42 are slidably limited in the vertical elongated holes on both sides, and the two ends of the guide shaft 42 protrude from the vertical elongated holes on both sides to facilitate the installation of the pressure roller and the connecting block 44. The elastic element 32 is mounted in the vertical guide groove and sandwiched between the guide block 41 and the bottom of the vertical guide groove to provide elastic force to the guide block 41.

[0045] In this embodiment, the lower end of the guide block 41 is provided with an extension, and the elastic element 32 is a compression spring. The compression spring is sleeved on the extension and sandwiched between the guide block 41 and the bottom of the vertical guide groove to limit the compression spring.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic door opening and closing device, characterized in that, include: A pressure block (1) is provided with a working surface; The box body includes a box body (2), an elastic component (3), a pressure roller assembly (4), and a linkage rod (5). The box body (2) is provided with a box door (21). The box door (21) is slidably disposed on the box body (2) along the first horizontal direction. The elastic component (3) is disposed on the box body (2). The pressure roller assembly (4) is slidably disposed on the elastic component (3) along the vertical direction. One end of the pressure roller assembly (4) can abut against the working surface. The linkage rod (5) is connected between the other end of the pressure roller assembly (4) and the box door (21). The pressure roller assembly (4) can reciprocate along the vertical direction under the elastic force of the working surface and the elastic component (3), and can drive the box door (21) to reciprocate along the first horizontal direction through the linkage rod (5). The working surface includes a first inclined plane (11), a horizontal plane (12), and a second inclined plane (13). When the pressure roller assembly (4) moves from the first inclined plane (11) to the horizontal plane (12), the pressure roller assembly (4) moves downward along the vertical direction and can drive the box door (21) to open. When the pressure roller assembly (4) moves from the horizontal plane (12) to the second inclined plane (13), the pressure roller assembly (4) moves upward along the vertical direction and can drive the box door (21) to close. The pressure roller assembly (4) includes a guide block (41), a guide shaft (42), and a rolling roller (43). The guide block (41) is slidably disposed on the elastic component (3), the guide shaft (42) is fixedly disposed on the guide block (41), and the rolling roller (43) is rotatably disposed on one end of the guide shaft (42), and the rolling roller (43) abuts against the working surface.

2. The automatic door opening and closing device according to claim 1, characterized in that, The linkage rod (5) includes an upper connecting rod (51) and a lower connecting rod (52) arranged at an angle. The connection between the upper connecting rod (51) and the lower connecting rod (52) is rotatably connected to the box body (2). The pressure roller assembly (4) also includes a connecting block (44). The connecting block (44) is rotatably connected to the other end of the guide shaft (42). The connecting block (44) is provided with a plug hole (441). The upper connecting rod (51) is inserted into the plug hole (441). The lower connecting rod (52) is slidably connected to the box door (21). When the pressure roller assembly (4) reciprocates along the vertical direction, the guide shaft (42) can drive the linkage rod (5) to rotate. The upper connecting rod (51) reciprocates in the plug hole (441). The lower connecting rod (52) slides on the box door (21) and drives the box door (21) to reciprocate along the first horizontal direction.

3. The automatic door opening and closing device according to claim 2, characterized in that, The guide shaft (42) has a clearance hole (421) on the circumferential surface of the other end of the connecting block (44). The length direction of the clearance hole (421) is perpendicular to the axial direction of the guide shaft (42). The upper connecting rod (51) can pass through both the insertion hole (441) and the clearance hole (421). The clearance hole (421) is used to prevent the upper connecting rod (51) and the guide shaft (42) from interfering with each other.

4. The automatic door opening and closing device according to claim 2, characterized in that, The door (21) is provided with a vertical sliding groove extending along the vertical direction, and a sliding pin (2111) is provided in the vertical sliding groove. The lower connecting rod (52) is fixedly connected to the sliding pin (2111).

5. The automatic door opening and closing device according to claim 4, characterized in that, The door (21) is provided with a door handle (211), and the vertical sliding groove is provided on the door handle (211).

6. The automatic door opening and closing device according to claim 2, characterized in that, Two of each of the following are provided: the box door (21), the linkage rod (5), and the connecting block (44). Both of the box doors (21) are slidably disposed on the box body (2). Both of the connecting blocks (44) are disposed at the other end of the guide shaft (42). One linkage rod (5) is connected between one connecting block (44) and one box door (21), and the other linkage rod (5) is connected between another connecting block (44) and another box door (21). The two linkage rods (5) can respectively drive the two box doors (21) to move towards each other or away from each other.

7. The automatic door opening and closing device according to claim 1, characterized in that, The elastic component (3) includes a guide seat (31) and an elastic element (32). The guide seat (31) is fixedly disposed on the box body (2), and the guide seat (31) is provided with a vertical guide groove extending along the vertical direction. The guide seat (31) is also provided with vertical elongated holes communicating with the vertical guide groove on both sides along the second horizontal direction. The guide block (41) is slidably disposed in the vertical guide groove. The two ends of the guide shaft (42) are slidably limited in the vertical elongated holes on both sides. The elastic element (32) is disposed in the vertical guide groove and sandwiched between the guide block (41) and the bottom of the vertical guide groove.

8. The automatic door opening and closing device according to claim 1, characterized in that, The pressure block (1) is fixedly installed, and the box body can move toward the pressure block (1) along the first horizontal direction so that the pressure roller assembly (4) abuts against the working surface.

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