Switching device for pneumatic logistics pipeline

Abstract

The utility model belongs to the field of pneumatic logistics conveying, and particularly relates to a pneumatic logistics pipeline switcher which comprises a supporting shell, a switching pipeline, a right conveying pipe connector, a left conveying pipe connector and a driving mechanism. A gap is preset between the projection of the pipe orifice of the switching pipeline on the left side wall of the supporting shell and the projection of the pipe orifice of the switching pipeline on the right side wall of the supporting shell; a pipe opening of the right conveying pipe connector is located on the path where a right pipe opening of the switching pipeline rotates around the axis of the left conveying pipe connector, a sealing ring is arranged at the pipe opening end of the switching pipeline and can slide along the axis of the pipe opening end of the switching pipeline, and the side, facing the pipe opening end of the switching pipeline, of the sealing ring is fixedly connected with the switching pipeline through high-resilience sponge. The inner diameter of the pipe orifice of the right transmission pipe interface is equal to that of the pipe orifice of the switching pipeline; the pneumatic logistics pipeline solves the problem that a sealing ring is abraded in the process of frequently switching the conveying direction of an existing pneumatic logistics pipeline.

Description

Technical Field

[0001] The present application belongs to the field of pneumatic logistics transmission, and specifically relates to a switcher for pneumatic logistics pipelines. Background Art

[0002] During the logistics pipe transmission process, when changing the conveying direction, the method used is to change the output port of the logistics pipe. The common method is to use one input pipe and multiple output pipes with different conveying directions, and then use a mechanical drive to drive the output port of the input pipe to connect with the input ports of different output pipes. However, when the output port of the input pipe is connected to the input port of the output pipe, it is necessary to ensure the airtightness of the connection to prevent gas leakage in the logistics pipe. The conventional method is to set a sealing ring at the output port of the input pipe, but in the process of frequent switching of the conveying direction, the wear of the sealing ring is relatively serious. Therefore, it is necessary to design a pneumatic logistics pipe switcher that can reduce the degree of wear of the sealing ring. Utility Model Content

[0003] The purpose of this application is mainly to address the shortcomings of the existing technology. By using a high-rebound sponge to set a sealing ring, a pneumatic logistics pipeline switcher is designed. The elasticity of the high-rebound sponge is utilized to reduce the wear of the sealing ring during the switching of the conveying direction, thereby solving the problem of wear of the sealing ring during the frequent switching of the conveying direction of the current pneumatic logistics pipeline.

[0004] In order to achieve the above objectives, the technical solution adopted in this application is:

[0005] The cam is secured to the side of the switch housing by means of a camshaft and is adapted to engage said camshaft and to engage said camshaft when the camshaft is in engagement with said switch housing.

[0006] Preferably, a fixed plate is provided at the end of the switching pipe, and the fixed plate is rotatably connected to the right side wall of the support shell through a rotating shaft, the axis of the rotating shaft is colinear with the axis of the pipe mouth of the switching pipe, and a through hole coaxial with the right end of the switching pipe is provided on the fixed plate, and the outer circumferential surface of the right end tube of the switching pipe is tightly connected to the inner circumferential surface of the through hole.

[0007] Preferably, an expansion hole coaxial with the through hole is provided on the side of the fixed plate facing the right transmission pipe interface orifice, the high-rebound sponge is fixedly arranged on the inner bottom wall of the expansion hole, the sealing ring is coaxially arranged in the expansion hole, the side of the sealing ring facing away from the right transmission pipe interface orifice is fixedly connected to the high-rebound sponge, the inner circumferential surface of the sealing ring is slidingly and tightly connected with the circumferential surface of the expansion hole close to the switching pipe orifice, and the side of the sealing ring facing the right transmission pipe interface orifice is tightly abutted against the right inner wall of the support shell.

[0008] Preferably, the side wall of the expansion hole close to the switching pipe is the outer circumferential surface of the pipe mouth end of the switching pipe.

[0009] Preferably, three right transmission pipe interfaces are provided on the right side wall of the support shell.

[0010] Preferably, the driving mechanism includes a driving motor, a driving gear, and a driven gear. The driving motor is fixed on the support shell, the driving gear is coaxially fixed on the output shaft of the driving motor, and the driven gear is coaxially fixed on the outer circumferential surface of the pipe mouth end of the switching pipe, and the driven gear is engaged with the driving gear.

[0011] Preferably, the drive motor is fixed on the left inner wall of the support shell.

[0012] Preferably, a mounting seat is provided on the left inner wall of the support shell, and the projection of the mounting seat on the front side wall of the support shell is U-shaped. One outer side wall of the U-shape of the mounting seat is fixedly connected to the left inner wall of the support shell, and the drive motor is fixedly provided on the other outer side wall of the U-shape on the mounting seat. The output shaft of the drive motor faces the inside of the U-shape of the support shell, and the driving gear is provided in the U-shape of the mounting seat.

[0013] Compared with the prior art, this application has the following beneficial effects:

[0014] 1. This application adopts the method of setting a sealing ring with high-rebound sponge to design a switcher for pneumatic logistics pipelines. The elasticity of the high-rebound sponge is utilized to reduce the wear of the sealing ring during the switching of the conveying direction, thereby solving the problem of wear of the sealing ring during the frequent switching of the conveying direction of the current pneumatic logistics pipelines.

[0015] 2. This application utilizes a fixed plate to secure the outlet (end) of the switching pipe. Since the axis of rotation is co-linear with the axis of the switching pipe's inlet, this prevents radial swinging of the switching pipe's outlet during rotation. The through-hole is provided primarily to ensure that the fixed plate does not interfere with the connection between the switching pipe and the right transmission pipe.

[0016] 3. The present application installs the high-rebound sponge by setting an expansion hole, so that when installing the high-rebound sponge, a certain gap can be ensured between the high-rebound sponge and the outer circumferential surface of the outlet of the switching pipe to prevent the high-rebound sponge from rubbing against the outer circumferential surface of the outlet end of the switching pipe during the rotation of the switching pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of this application;

[0018] Figure 2 A schematic diagram of the structure at the top of this application;

[0019] Figure 3 For this application Figure 2 The structural diagram on the back;

[0020] Figure 4 A cross-sectional view of the present application;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0022] Figure 6 This is a schematic diagram of the structure of the fixed plate in this application;

[0023] Figure 7 This is a diagram showing the relationship between the mounting seat, the driving gear, and the driven gear in this application.

[0024] Among them, 1. Support shell; 2. Switching pipe; 3. Right transmission pipe interface; 4. Sealing ring; 5. High-rebound sponge; 6. Fixing plate; 7. Through hole; 8. Expansion hole; 9. Drive motor; 10. Driving gear; 11. Driven gear; 12. Mounting seat; 13. Rotating shaft; 14. Left transmission pipe interface. DETAILED DESCRIPTION

[0025] like Figure 1-7As shown, a pneumatic flow pipeline switcher includes a support shell 1, a switching pipeline 2, a right transmission pipe interface 3, a left transmission pipe interface 14, and a driving mechanism. The left side wall of the support shell 1 is rotatably arranged at one end of the switching pipeline 2. At least three right transmission pipe interfaces 3 are provided on the right side wall of the support shell 1. A gap is preset between the projection of the pipe opening of the switching pipeline 2 on the left side wall of the support shell 1 and the projection of the pipe opening of the switching pipeline 2 on the left side wall of the support shell 1. The driving mechanism can drive the switching pipeline 2 around the left side wall. The axis of the pipe mouth of the transmission pipe interface 14 rotates; the pipe mouth of the right transmission pipe interface 3 is on the path of the right pipe mouth of the switching pipe 2 rotating around the axis of the pipe mouth of the left transmission pipe interface 14, and the pipe mouth end of the switching pipe 2 is coaxially provided with a sealing ring 4, and the sealing ring 4 can slide along the axis of the pipe mouth end of the switching pipe 2. The sealing ring 4 is fixedly connected to the switching pipe 2 through a high-rebound sponge 5 on the side facing the pipe mouth end of the switching pipe 2, and the inner diameter of the pipe mouth of the right transmission pipe interface 3 is equal to the inner diameter of the pipe mouth of the switching pipe 2.

[0026] In this embodiment, during use, the inlet end of the left transmission pipe interface 14 is connected to the outlet of the main transmission pipe in the airflow conveying system, and the outlet end of each right transmission pipe interface 3 is then connected to the inlet end of each branch transmission pipe in the airflow conveying system. The direction of airflow in the airflow conveying system is from the inlet of the main transmission pipe of the airflow conveying system to the outlet of the main transmission pipe. When the conveying direction needs to be switched, the driving mechanism drives the switching pipe 2 to rotate around the axis of the switching pipe 2 inlet, so that the outlet of the switching pipe 2 mates with the inlet of a different right transmission pipe interface 3, achieving a change in the conveying direction. Therefore, the projection of the switching pipe 2 outlet on the left side wall of the support shell 1 is arranged to have a gap between it and the projection of the inlet of the right transmission pipe interface 3 on the left side wall of the support shell 1. Since the inlet of the right transmission pipe interface 3 is on the path of the switching pipe 2 outlet rotating around the axis of the switching pipe 2 inlet, the outlet of the switching pipe 2 will inevitably mate with the inlet of one right transmission pipe interface 3 during the process of the driving mechanism driving the switching pipe 2 to rotate. The function of the sealing ring 4 is to ensure that the outlet of the switching pipe 2 is aligned with the inlet of the right transmission pipe interface 3. After docking, the air tightness between the switching pipe 2 and the right transmission pipe interface 3 is guaranteed. During the movement of the switching pipe 2, the sealing ring 4 is always in contact with the right inner wall of the support shell 1, so the sealing ring 4 will be worn. However, since a high-rebound sponge 5 is used, the force exerted by the high-rebound sponge 5 on the sealing ring 4 toward the right inner wall of the support shell 1 is not very large, which reduces the degree of wear of the sealing ring 4. At the same time, since the high-rebound sponge 5 has sufficient elasticity, the air tightness of the docking point between the switching pipe 2 and the right transmission pipe interface 3 can be guaranteed after the outlet of the switching pipe 2 is docked with the inlet of the right transmission pipe interface 3. Therefore, it solves the problem of wear of the sealing ring in the current pneumatic logistics pipeline during frequent switching of the delivery direction, and solves the problem of air leakage caused by insufficient sealing.

[0027] As a preferred embodiment, a fixed plate 6 is provided at the end of the switching pipe 2. The fixed plate 6 is rotatably connected to the right side wall of the support shell 1 via a rotating shaft 13. The axis of the rotating shaft 13 is collinear with the axis of the inlet of the switching pipe 2. A through hole 7 coaxial with the outlet of the switching pipe 2 is provided on the fixed plate 6. The outer circumferential surface of the end of the switching pipe 2 close to the right transmission pipe interface 3 is tightly connected to the inner circumferential surface of the through hole 7. In this embodiment, the outlet end (end) of the switching pipe 2 is fixed by the fixed plate 6. Since the rotating shaft 13 is collinear with the axis of the inlet of the switching pipe 2, it is ensured that the outlet end of the switching pipe 2 does not swing radially during the rotation process. The provision of the through hole 7 is mainly to ensure that the provision of the fixed plate 6 does not affect the docking of the switching pipe 2 with the right transmission pipe interface 3.

[0028] As a preferred embodiment, the fixing plate 6 is provided with an expansion hole 8 coaxial with the through hole 7 on the side facing the right transmission pipe interface 3. The high-resilience sponge 5 is fixedly mounted on the inner bottom wall of the expansion hole 8. The sealing ring 4 is coaxially disposed within the expansion hole 8. The side of the sealing ring 4 facing away from the right transmission pipe interface 3 is fixedly connected to the high-resilience sponge 5. The inner circumferential surface of the sealing ring 4 is slidingly and tightly connected to the circumferential surface of the expansion hole 8 near the switching pipe 2. The side of the sealing ring 4 facing the right transmission pipe interface 3 is tightly abutted against the right inner wall of the support shell 1. By providing the expansion hole 8 for mounting the high-resilience sponge 5, a certain gap can be maintained between the high-resilience sponge 5 and the outer circumferential surface of the outlet of the switching pipe 2 when the high-resilience sponge 5 is installed, thereby preventing the high-resilience sponge 5 from rubbing against the outer circumferential surface of the outlet end of the switching pipe 2 during rotation of the switching pipe 2.

[0029] Preferably, an annular mounting groove is coaxially provided on the side of the sealing ring 4 facing away from the right transmission pipe interface 3, so that the side of the high-resilient sponge 5 facing the sealing ring can be installed in the mounting groove, thereby increasing the contact area between the sealing ring and the high-resilient sponge 5, making the connection between the high-resilient sponge 5 and the sealing ring 4 more secure.

[0030] As a preferred embodiment, the side wall of the expansion hole 8 close to the switching pipe 2 is the outer circumferential surface of the outlet end of the switching pipe 2. This arrangement can not only make the installation between the various parts compact and reduce the occupied space volume, but also make the sealing ring 4 run more stably.

[0031] As a preferred embodiment, three right transmission pipe interfaces 3 are provided on the right side wall of the support shell 1, so that three transmission directions can be switched.

[0032] As a preferred embodiment, the driving mechanism includes a driving motor 9, a driving gear 10, and a driven gear 11. The driving motor 9 is fixed on the support shell 1, and the driving gear 10 is coaxially fixed on the output shaft of the driving motor 9. The driven gear 11 is coaxially fixed on the outer circumferential surface of the inlet end of the switching pipe 2, and the driven gear 11 is engaged with the driving gear 10.

[0033] After this setting, when switching the conveying direction, the drive motor 9 works, and the output shaft of the drive motor 9 drives the driving gear 10 to rotate, thereby driving the driven wheel 11 located on the switching pipe 2 to rotate. Since the driven wheel 11 is fixedly connected to the switching pipe 2, it also drives the switching pipe 2 to rotate.

[0034] As a preferred embodiment, the drive motor 9 is fixedly mounted on the left inner wall of the support shell 1. Compared with the case where the drive motor 9 is fixedly mounted on the left outer wall of the support shell 1, this arrangement can reduce the space occupied by the entire device.

[0035] As a preferred embodiment, a mounting seat 12 is provided on the left inner side wall of the support shell 1. The projection of the mounting seat 12 on the front side wall of the support shell 1 is U-shaped. One outer side wall of the U-shaped mounting seat 12 is fixedly connected to the left inner side wall of the support shell 1. The drive motor 9 is fixedly mounted on the other outer side wall of the U-shaped mounting seat 12. The output shaft of the drive motor 9 faces the inside of the U-shaped mounting seat 1. The driving gear 10 is disposed within the U-shaped mounting seat 12. The provision of the mounting seat 12 facilitates the fixing of the drive motor 9 and the driving gear 10.

Claims

1. A switch for pneumatic tube pipelines, characterized in that: The invention comprises a support shell (1), a switching pipe (2), a right transmission pipe interface (3), a left transmission pipe interface (14), and a driving mechanism. The support shell (1) is rotatably arranged on the left side wall of the switching pipe (2) at one end. The right side wall of the support shell (1) is provided with at least three right transmission pipe interfaces (3). A gap is preset between the projection of the pipe opening of the switching pipe (2) on the left side wall of the support shell (1) and the projection of the pipe opening of the switching pipe (2) on the left side wall of the support shell (1). The driving mechanism can drive the switching pipe (2) to surround the left transmission pipe interface (14). The pipe opening of the right transmission pipe interface (3) is on the path of the right pipe opening of the switching pipe (2) rotating around the axis of the pipe opening of the left transmission pipe interface (14); the pipe opening end of the switching pipe (2) is coaxially provided with a sealing ring (4); the sealing ring (4) can slide along the axis of the pipe opening end of the switching pipe (2); the sealing ring (4) is fixedly connected to the switching pipe (2) on the side facing the pipe opening end of the switching pipe (2) through a high-rebound sponge (5); the inner diameter of the pipe opening of the right transmission pipe interface (3) is equal to the inner diameter of the pipe opening of the switching pipe (2).

2. A pneumatic tube switch according to claim 1, characterized in that: A fixing plate (6) is provided at the end of the switching pipe (2), and the fixing plate (6) is rotatably connected to the right side wall of the support shell (1) via a rotating shaft (13). The axis of the rotating shaft (13) is colinear with the axis of the pipe opening of the switching pipe (2). A through hole (7) coaxial with the right end of the switching pipe (2) is provided on the fixing plate (6), and the outer circumferential surface of the right end pipe of the switching pipe (2) is tightly connected to the inner circumferential surface of the through hole (7).

3. A pneumatic tube switch according to claim 2, characterized in that: An expansion hole (8) coaxial with the through hole (7) is provided on the fixed plate (6) on the side facing the pipe opening of the right transmission pipe interface (3); the high-resilience sponge (5) is fixedly provided on the inner bottom wall of the expansion hole (8); the sealing ring (4) is coaxially arranged in the expansion hole (8); the side of the sealing ring (4) facing away from the pipe opening of the right transmission pipe interface (3) is fixedly connected to the high-resilience sponge (5); the inner circumferential surface of the sealing ring (4) is slidingly and tightly connected to the circumferential surface of the expansion hole (8) close to the pipe opening of the switching pipe (2); the side of the sealing ring (4) facing the pipe opening of the right transmission pipe interface (3) is tightly abutted against the right inner wall of the support shell (1).

4. A pneumatic tube switcher according to claim 3, characterized in that: The side wall of the expansion hole (8) close to the switching pipe (2) is the outer circumferential surface of the pipe mouth end of the switching pipe (2).

5. The pneumatic tube switch according to claim 1, characterized in that: Three right transmission pipe interfaces (3) are provided on the right side wall of the support shell (1).

6. The pneumatic tube switch according to claim 1, characterized in that: The driving mechanism comprises a driving motor (9), a driving gear (10), and a driven gear (11); the driving motor (9) is fixedly mounted on the supporting shell (1); the driving gear (10) is coaxially fixedly mounted on the output shaft of the driving motor (9); the driven gear (11) is coaxially fixedly mounted on the outer circumferential surface of the pipe mouth end of the switching pipe (2); and the driven gear (11) is meshed with the driving gear (10).

7. The pneumatic tube switch according to claim 6, characterized in that: The driving motor (9) is fixedly mounted on the left inner wall of the supporting shell (1).

8. The pneumatic tube switch according to claim 7, characterized in that: A mounting seat (12) is provided on the left inner side wall of the support shell (1); the projection of the mounting seat (12) on the front side wall of the support shell (1) is U-shaped; one outer side wall of the U-shaped mounting seat (12) is fixedly connected to the left inner side wall of the support shell (1); the drive motor (9) is fixedly provided on the other outer side wall of the U-shaped mounting seat (12); the output shaft of the drive motor (9) faces the inside of the U-shaped mounting seat (1); and the driving gear (10) is provided in the U-shaped mounting seat (12).

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