A pneumatic conveying device with stable connection

Abstract

The present invention discloses a pneumatic conveying device with stable connection, including a conveying assembly, including a transfer bin, a feeding mechanism, an air source device, a conveying pipeline and a connecting hose, wherein the feeding mechanism is located at the bottom of the transfer bin, the air source device is arranged at one side of the feeding mechanism, the conveying pipeline is located at one side of the air source device, and the connecting hose is arranged at one side of the conveying pipeline; the connecting assembly is arranged on the conveying pipeline, and includes a connecting piece, a locking piece, a sealing piece, a fastener and a trigger piece. The present invention can stably connect the connecting hose to the conveying pipeline through the arrangement of the connecting assembly, thereby avoiding leakage at the connection between the two during use, and at the same time, when the conveying pipeline starts to convey materials, the tightness and sealing of the connection between the two can be increased, thereby avoiding loosening of the connecting hose due to vibration during the conveying process.

Description

Technical Field

[0001] The invention relates to the field of conveying technology, in particular to a pneumatic conveying device with stable connection. Background Art

[0002] Pneumatic conveying equipment is a device that uses air pressure to transport materials from one location to another. It is usually composed of an air source device, a conveying pipeline, a conveying medium, a conveying material and a control system. Pneumatic conveying equipment is widely used in the material conveying process of chemical, building materials, food, medicine and other industries. It has the advantages of fast conveying speed, long conveying distance, simple operation and no pollution. In order to maintain a certain flexibility and adjustability during the conveying process and adapt to raw material tanks in different positions, a hose is required to be connected to the conveying pipeline. Most of the hoses in the prior art are fixed by clamps when connected and fixed. This leads to leakage at the connection between the hose and the conveying pipeline during use, which in turn affects the material conveying efficiency. In addition, during transportation, the clamp is easily loosened by vibration and external force, resulting in a loose connection. After long-term use, the contact between the hose and the clamp is prone to wear, thereby reducing the stability of the connection. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in the existing pneumatic conveying equipment with stable connection, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that most of the hoses in the prior art are fixed by clamps when connected, which leads to leakage at the connection between the hose and the conveying pipe during use, thereby affecting the material conveying efficiency. In addition, during transportation, the clamp is easily loosened by vibration and external force, resulting in a loose connection. After long-term use, the contact between the hose and the clamp is easily worn, thereby reducing the stability of the connection.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a pneumatic conveying device with stable connection, comprising a conveying assembly, including a transfer bin, a material discharge mechanism, an air source device, a conveying pipeline and a connecting hose, wherein the material discharge mechanism is located at the bottom of the transfer bin, the air source device is arranged at one side of the material discharge mechanism, the conveying pipeline is located at one side of the air source device, and the connecting hose is arranged at one side of the conveying pipeline;

[0007] A connecting component is arranged on the conveying pipeline, and includes a connecting piece, a locking piece, a sealing piece, a fastener and a trigger piece. The connecting piece is located on the outside of the conveying pipeline, the locking piece is arranged on the connecting piece, the sealing piece is located inside the connecting piece, the fastener is arranged on the inside of the sealing piece, and the trigger piece is located on one side of the fastener.

[0008] As a preferred solution of the pneumatic conveying equipment with stable connection described in the present invention, the connecting part includes a connecting head, a rotating sleeve and a positioning block, the connecting head is fixed to one side of the connecting hose, the rotating sleeve is located on the outside of the conveying pipe, one side of the positioning block is fixed to the connecting head, a positioning groove is provided on the rotating sleeve, the positioning block slides in the positioning groove, and a through groove is provided on the rotating sleeve, and the through groove is connected to the positioning groove.

[0009] As a preferred solution of the pneumatic conveying equipment with stable connection described in the present invention, the connecting piece also includes a limit block, the limit block is fixed to one side of the conveying pipeline, a limit groove is provided in the connecting head, and the limit block slides in the limit groove.

[0010] As a preferred solution of the pneumatic conveying equipment with stable connection described in the present invention, the locking member includes a support block and a limit column, the support block is fixed to the top of the conveying pipe, the limit column is inserted into the support block, a limit hole is provided on the rotating sleeve, and the limit column is engaged with the limit hole.

[0011] As a preferred solution of the pneumatic conveying equipment with stable connection described in the present invention, the locking member also includes a fixed block and a spring, the fixed block is fixed to the top of the limiting column, the two ends of the spring are respectively fixed to the fixed block and the supporting block, and are sleeved on the outside of the limiting column.

[0012] As a preferred solution of the pneumatic conveying equipment with stable connection described in the present invention, the sealing member includes a connecting sleeve, a fixing frame and a sealing sleeve, the connecting sleeve is fixed to one side of the conveying pipeline, the fixing frame is fixed to the outside of the connecting sleeve, and the sealing sleeve is located inside the fixing frame.

[0013] As a preferred solution of the pneumatic conveying equipment with stable connection described in the present invention, the sealing member further comprises an extrusion strip and an extrusion plate, the extrusion strip is located in the fixing frame, and the extrusion plate is fixed in the connecting head.

[0014] As a preferred solution of the pneumatic conveying equipment with stable connection described in the present invention, the fastener includes a rotating plate, a stabilizing block and a positioning ring, the rotating plate is located on the inner side of the fixed frame, one side of the stabilizing block is fixed to the connecting sleeve, the positioning ring is fixed in the stabilizing block, and the rotating plate is movably connected to the outer side of the positioning ring.

[0015] As a preferred solution of the pneumatic conveying equipment with stable connection described in the present invention, the trigger member includes a force ring and a positioning column, the force ring is located on one side of the connecting sleeve, one end of the positioning column is fixed to the connecting sleeve, and the force ring is movably connected to the positioning column.

[0016] As a preferred solution of the pneumatic conveying device with stable connection described in the present invention, the trigger member further includes an elastic sleeve, both ends of which are respectively fixed to the force ring and the connecting sleeve, and are sleeved on the outside of the positioning column.

[0017] The beneficial effects of the present invention are as follows: through the setting of the connecting component, the connecting hose can be stably connected to the conveying pipeline, thereby avoiding leakage at the connection between the two during use. At the same time, when the material starts to be conveyed inside the conveying pipeline, the tightness and sealing of the connection between the two can be increased, thereby avoiding the loosening of the connecting hose due to vibration during the conveying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 The overall diagram of the pneumatic conveying equipment with stable connection.

[0020] Figure 2 Structural diagram of the connector for connecting stable pneumatic conveying equipment.

[0021] Figure 3 A cross-sectional view of a connector for connecting stable pneumatic conveying equipment.

[0022] Figure 4 For connecting stable pneumatic conveying equipment Figure 3 A partial enlarged structural diagram in the middle.

[0023] Figure 5 A cross-sectional view from another perspective of the connector for connecting stable pneumatic conveying equipment.

[0024] Figure 6Diagram of the seal structure for connecting stable pneumatic conveying equipment.

[0025] Figure 7 This is a structural diagram of the rotating sleeve of a pneumatic conveying device for connection stability.

[0026] In the figure: 100 conveying assembly, 200 connecting assembly, 105 connecting hose, 104 conveying pipeline, 101 transfer bin, 102 unloading mechanism, 103 air source device, 201 connecting piece, 202 locking piece, 203 sealing piece, 204 fastener, 205 trigger piece, 201a connecting head, 201b rotating sleeve, 201c positioning block, 201b-1 positioning groove, 201b-2 through groove, 201d limiting piece Positioning block, 201a-1 limiting groove, 202a supporting block, 202b limiting column, 201b-3 limiting hole, 202c fixing block, 202d spring, 203a connecting sleeve, 203b fixing frame, 203c sealing sleeve, 203d extrusion strip, 203e extrusion plate, 204a rotating plate, 204b stabilizing block, 204c positioning ring, 205a force ring, 205b positioning column, 205c elastic sleeve. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figure 1-Figure 7 , which is the first embodiment of the present invention, and this embodiment provides a pneumatic conveying device with a stable connection. The pneumatic conveying device with a stable connection includes a conveying component 100 and a connecting component 200. The connecting component 200 can stably connect the connecting hose 105 to the conveying pipeline 104.

[0032] The conveying assembly 100 includes a transfer bin 101, a material unloading mechanism 102, an air source device 103, a conveying pipeline 104 and a connecting hose 105. The material unloading mechanism 102 is located at the bottom of the transfer bin 101, the air source device 103 is arranged on one side of the material unloading mechanism 102, the conveying pipeline 104 is located on one side of the air source device 103, and the connecting hose 105 is arranged on one side of the conveying pipeline 104.

[0033] The transfer bin 101 is used to store raw materials, and the unloading mechanism 102 is used to unload the raw materials evenly. The falling raw materials fall into the conveying pipe 104, and the conveying pipe 104 is connected to the connecting hose 105. The connecting hose 105 is connected to the inside of the raw material bin. Through the setting of the air source device 103, it is used to inject the conveying medium into the conveying pipe 104, so that the raw materials inside the conveying pipe 104 can be transported to the raw material bin through the connecting hose 105. The connecting hose 105 can maintain a certain flexibility and adjustability during the conveying process, and can adapt to raw material tanks in different positions. This is the prior art, and this scheme will not be elaborated, and those skilled in the art can clearly understand the working principle.

[0034] The connecting component 200 is arranged on the conveying pipe 104, and includes a connecting member 201, a locking member 202, a sealing member 203, a fastener 204 and a trigger member 205. The connecting member 201 is located on the outside of the conveying pipe 104, the locking member 202 is arranged on the connecting member 201, the sealing member 203 is located inside the connecting member 201, the fastener 204 is arranged on the inside of the sealing member 203, and the trigger member 205 is located on one side of the fastener 204.

[0035] The connection piece 201 is used to connect and fix the connection hose 105 and the delivery pipe 104, and the fixation is convenient and does not require too many steps, thereby improving the connection efficiency of the connection hose 105. The locking piece 202 is used to lock the connection piece 201 so that the connection piece 201 cannot rotate, thereby preventing the connection piece 201 from being accidentally touched by external force during use, thereby causing the connection piece 201 to rotate and loosening the fixation of the connection hose 105.

[0036] The sealing member 203 is provided to improve the sealing performance when the connecting hose 105 is connected to the conveying pipe 104, so as to avoid leakage at the connection between the two during the conveying process, which may affect the conveying efficiency. The fastener 204 is provided, and when the conveying pipe 104 is opened to convey raw materials, the sealing member 203 can be squeezed by the fastener 204, so that the sealing member 203 further improves the sealing performance at the connection between the connecting hose 105 and the conveying pipe 104, and at the same time improves the stability of the connection between the two, so as to avoid the vibration generated during the conveying process that may cause the connecting hose 105 to loosen. The trigger member 205 is provided, and when the conveying pipe 104 is conveying raw materials, the conveying medium inside it will push the trigger member 205 to move, so that the trigger member 205 can drive the fastener 204 to squeeze the sealing member 203.

[0037] Example 2

[0038] Reference Figure 1-Figure 7 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0039] Specifically, the connecting member 201 includes a connecting head 201a, a rotating sleeve 201b and a positioning block 201c. The connecting head 201a is fixed to one side of the connecting hose 105, the rotating sleeve 201b is located on the outside of the conveying pipe 104, one side of the positioning block 201c is fixed to the connecting head 201a, a positioning groove 201b-1 is provided on the rotating sleeve 201b, the positioning block 201c slides in the positioning groove 201b-1, and a through groove 201b-2 is provided on the rotating sleeve 201b, and the through groove 201b-2 is connected to the positioning groove 201b-1.

[0040] The connecting head 201a is connected to the connecting hose 105, and an annular groove is provided on the outer side of the conveying pipe 104. An annular block is fixed on one side of the rotating sleeve 201b, and the annular block is movably connected to the annular groove. The rotating sleeve 201b is positioned by the cooperation of the two to avoid the rotating sleeve 201b from shifting during rotation. There are two positioning blocks 201c, which are respectively fixed on both sides of the connecting head 201a. Through the arrangement of the two positioning blocks 201c, the connecting hose 105 can have higher stability after connection.

[0041] When it is necessary to connect the connecting hose 105 to the conveying pipe 104, the connecting head 201a is inserted into the outside of the conveying pipe 104. At this time, the positioning block 201c will enter the through groove 201b-2 and slide in the through groove 201b-2. When the connecting head 201a is sleeved at the specified position on the outside of the conveying pipe 104, the positioning block 201c will enter the positioning groove 201b-1 from the through groove 201b-2. At this time, the rotating sleeve 201b is rotated to make the positioning block 201c slide in the positioning groove 201b-1, and make the positioning block 201c contact the inner wall of the positioning groove 201b-1. Through the cooperation of the two, the connecting head 201a can be connected and fixed to the conveying pipe 104, thereby completing the connection and fixation of the connecting hose 105 to the conveying pipe 104. In addition, the operation is simple and convenient, and the stability is high, which avoids the situation that the connection of the connecting hose 105 will be unstable due to long-term use.

[0042] Specifically, the connector 201 further includes a limit block 201d, which is fixed to one side of the delivery pipe 104. A limit groove 201a-1 is provided in the connector 201a, and the limit block 201d slides in the limit groove 201a-1.

[0043] There are two limit blocks 201d, which are fixed on both sides of the delivery pipe 104 respectively. When the connector 201a is inserted into the outside of the delivery pipe 104, the limit block 201d will enter the limit groove 201a-1. The two cooperate to limit the connector 201a, so as to prevent the connector 201a from rotating outside the delivery pipe 104, thereby causing the positioning block 201c to move in the positioning groove 201b-1, thereby causing the connection of the connecting hose 105 to loosen.

[0044] Specifically, the locking member 202 includes a support block 202a and a limiting column 202b. The support block 202a is fixed to the top of the conveying pipe 104. The limiting column 202b is inserted into the support block 202a. A limiting hole 201b-3 is opened on the rotating sleeve 201b, and the limiting column 202b is engaged with the limiting hole 201b-3.

[0045] The support block 202a is L-shaped, and the limiting column 202b is movably connected to the support block 202a. When the positioning block 201c contacts the inner wall of the positioning groove 201b-1, the limiting hole 201b-3 will rotate to the bottom of the limiting column 202b and overlap with the limiting column 202b. At this time, the limiting column 202b will move downward and engage with the limiting hole 201b-3. Through the cooperation of the two, the rotating sleeve 201b can be limited so that the rotating sleeve 201b cannot rotate, thereby avoiding the reversal of the rotating sleeve 201b when it is vibrated during use, which will cause the positioning block 201c to separate from the positioning groove 201b-1.

[0046] Specifically, the locking member 202 further includes a fixing block 202c and a spring 202d. The fixing block 202c is fixed to the top of the limiting column 202b. Both ends of the spring 202d are respectively fixed to the fixing block 202c and the supporting block 202a, and are sleeved on the outside of the limiting column 202b.

[0047] The spring 202d applies a pulling force to the fixing block 202c, and the fixing block 202c drives the limiting column 202b to move, so that the limiting column 202b and the limiting column 202b can be more tightly engaged, thereby preventing the two from separating.

[0048] Specifically, the sealing member 203 includes a connecting sleeve 203a, a fixing frame 203b and a sealing sleeve 203c. The connecting sleeve 203a is fixed to one side of the conveying pipe 104, the fixing frame 203b is fixed to the outside of the connecting sleeve 203a, and the sealing sleeve 203c is located inside the fixing frame 203b.

[0049] The connecting sleeve 203a is U-shaped and is used to support and fix the fixed frame 203b. The outer side of the fixed frame 203b is open. The sealing sleeve 203c is annular and is sleeved on the inner side of the fixed frame 203b. When the connecting head 201a is inserted into the outer side of the conveying pipe 104, the sealing sleeve 203c will contact the inner wall of the connecting head 201a. The sealing sleeve 203c can increase the sealing between the connecting head 201a and the conveying pipe 104, thereby avoiding leakage during use.

[0050] Example 3

[0051] Reference Figure 1-Figure 7 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0052] Specifically, the sealing member 203 further includes an extrusion strip 203d and an extrusion plate 203e. The extrusion strip 203d is located in the fixing frame 203b, and the extrusion plate 203e is fixed in the connecting head 201a.

[0053] There are four extrusion strips 203d, which are evenly distributed in a ring shape in the fixed frame 203b and contact the inner side of the sealing sleeve 203c. The extrusion strips 203d are arc-shaped, and one side is inclined. The number of extrusion plates 203e corresponds to the extrusion strips 203d. The extrusion plate 203e is L-shaped, and a slot corresponding to the extrusion plate 203e is opened on one side of the fixed frame 203b.

[0054] When the connector 201a is inserted into the outside of the conveying pipe 104, the extrusion plate 203e will be inserted into the fixed frame 203b through the slot, and squeeze the inclined surface of the extrusion strip 203d, thereby pushing the extrusion strip 203d to move toward the sealing sleeve 203c, and squeezing the sealing sleeve 203c so that the sealing sleeve 203c and the inner wall of the connector 201a can fit more tightly, thereby increasing the sealing between the connecting hose 105 and the conveying pipe 104, thereby avoiding leakage during use, thereby affecting the material transportation efficiency.

[0055] Specifically, the fastener 204 includes a rotating plate 204a, a stabilizing block 204b and a positioning ring 204c. The rotating plate 204a is located inside the fixed frame 203b, one side of the stabilizing block 204b is fixed to the connecting sleeve 203a, the positioning ring 204c is fixed inside the stabilizing block 204b, and the rotating plate 204a is movably connected to the outer side of the positioning ring 204c.

[0056] There are four rotating plates 204a, which are evenly distributed in a ring shape on the inner side of the fixed frame 203b. The rotating plates 204a are L-shaped. The stabilizing block 204b is used to support and fix the positioning ring 204c. The positioning ring 204c is provided to support and position the rotating plate 204a, and enable the rotating plate 204a to rotate with the positioning ring 204c as the center.

[0057] When the rotating plate 204a rotates, its end will contact the extrusion plate 203e and squeeze the extrusion plate 203e, so that the extrusion plate 203e can continue to squeeze the inclined surface of the extrusion strip 203d, thereby continuously increasing the sealing between the connecting hose 105 and the conveying pipe 104, and making the connection between the connecting head 201a and the conveying pipe 104 more tightly, thereby avoiding the loosening of the connecting hose 105 during the conveying process.

[0058] Specifically, the trigger member 205 includes a stress ring 205a and a positioning column 205b. The stress ring 205a is located at one side of the connecting sleeve 203a. One end of the positioning column 205b is fixed to the connecting sleeve 203a. The stress ring 205a is movably connected to the positioning column 205b.

[0059] There are four positioning posts 205b, which are evenly distributed in a ring shape on one side of the connecting sleeve 203a. The positioning posts 205b are used to position the force ring 205a to prevent the force ring 205a from shifting when moving. Both sides of the force ring 205a are inclined.

[0060] A movable plate is rotatably connected in the conveying pipe 104 . The movable plate is rotatably connected in the conveying pipe 104 via a rotating shaft. An end of the movable plate contacts an inclined surface on one side of the force ring 205 a .

[0061] When the conveying pipe 104 starts to convey materials, the conveying medium inside it will contact the movable plate and apply downward pressure to the movable plate. When the movable plate moves downward, it will apply thrust to the inclined surface of the force ring 205a and push the force ring 205a to move. When the force ring 205a moves, the inclined surface on the other side will squeeze the rotating plate 204a, so that the rotating plate 204a can rotate, and then squeeze the extrusion plate 203e.

[0062] By setting the side of the stress ring 205a close to the movable plate to be inclined, when the material moves inside the conveying pipe 104, the inclined surface of the stress ring 205a can exert a diversion effect on the material, thereby preventing the material from accumulating on one side of the stress ring 205a and thus affecting the conveying of the material. As the material continues to be conveyed, it can continue to exert a downward thrust on the movable plate.

[0063] Specifically, the trigger member 205 further includes an elastic sleeve 205c, two ends of which are respectively fixed to the force ring 205a and the connecting sleeve 203a, and are sleeved on the outside of the positioning column 205b.

[0064] The elastic sleeve 205c is elastic. When the conveying of materials in the conveying pipe 104 stops, the elastic sleeve 205c applies a thrust to the stress ring 205a, so that the stress ring 205a can be reset.

[0065] During use, when it is necessary to connect the connecting hose 105 with the conveying pipe 104, the connecting head 201a is inserted into the outside of the conveying pipe 104. At this time, the positioning block 201c will enter the through groove 201b-2 and slide in the through groove 201b-2. When the connecting head 201a is sleeved at the specified position on the outside of the conveying pipe 104, the positioning block 201c will enter the positioning groove 201b-1 from the through groove 201b-2. At this time, the rotating sleeve 201b is rotated to make the positioning block 201c slide in the positioning groove 201b-1, and make the positioning block 201c contact the inner wall of the positioning groove 201b-1. Through the cooperation of the two, the connecting head 201a can be connected and fixed to the conveying pipe 104, thereby completing the connection and fixation of the connecting hose 105 and the conveying pipe 104. In addition, the operation is simple and convenient, and the stability is high, which avoids the situation that the connection of the connecting hose 105 will be unstable due to long-term use.

[0066] When the positioning block 201c contacts the inner wall of the positioning groove 201b-1, the limiting hole 201b-3 will rotate to the bottom of the limiting column 202b and overlap with the limiting column 202b. At this time, the limiting column 202b will move downward and engage with the limiting hole 201b-3. Through the cooperation of the two, the rotating sleeve 201b can be limited so that the rotating sleeve 201b cannot rotate, thereby avoiding the reversal of the rotating sleeve 201b when it is vibrated during use, which will cause the positioning block 201c to separate from the positioning groove 201b-1.

[0067] At the same time, when the connector 201a is inserted into the outside of the conveying pipe 104, the extrusion plate 203e will be inserted into the fixed frame 203b through the slot, and squeeze the inclined surface of the extrusion strip 203d, thereby pushing the extrusion strip 203d to move toward the sealing sleeve 203c, and squeezing the sealing sleeve 203c so that the sealing sleeve 203c and the inner wall of the connector 201a can fit more tightly, thereby increasing the sealing between the connecting hose 105 and the conveying pipe 104, thereby avoiding leakage during use, thereby affecting the material transportation efficiency.

[0068] When the conveying pipe 104 starts to convey materials, the conveying medium inside it will contact the movable plate and apply downward pressure to the movable plate. When the movable plate moves downward, it will apply thrust to the inclined surface of the force ring 205a and push the force ring 205a to move. When the force ring 205a moves, the inclined surface on the other side will squeeze the rotating plate 204a, so that the rotating plate 204a can rotate. When the rotating plate 204a rotates, its end will contact the extrusion plate 203e and squeeze the extrusion plate 203e, so that the extrusion plate 203e can continue to squeeze the inclined surface of the extrusion strip 203d, thereby continuously increasing the sealing between the connecting hose 105 and the conveying pipe 104, and making the connection between the connecting head 201a and the conveying pipe 104 more tightly, thereby avoiding the loosening of the connecting hose 105 during the conveying process.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pneumatic conveying device with stable connection, characterized in that: include, A conveying assembly (100), comprising a transfer bin (101), a material discharge mechanism (102), an air source device (103), a conveying pipeline (104), and a connecting hose (105), wherein the material discharge mechanism (102) is located at the bottom of the transfer bin (101), the air source device (103) is arranged on one side of the material discharge mechanism (102), the conveying pipeline (104) is located on one side of the air source device (103), and the connecting hose (105) is arranged on one side of the conveying pipeline (104); A connecting component (200) is arranged on the delivery pipe (104), comprising a connecting piece (201), a locking piece (202), a sealing piece (203), a fastener (204) and a trigger piece (205), wherein the connecting piece (201) is located outside the delivery pipe (104), the locking piece (202) is arranged on the connecting piece (201), the sealing piece (203) is located inside the connecting piece (201), the fastener (204) is arranged inside the sealing piece (203), and the trigger piece (205) is located on one side of the fastener (204); The sealing member (203) comprises a connecting sleeve (203a), a fixing frame (203b) and a sealing sleeve (203c), wherein the connecting sleeve (203a) is fixed to one side of the conveying pipeline (104), the fixing frame (203b) is fixed to the outside of the connecting sleeve (203a), and the sealing sleeve (203c) is located inside the fixing frame (203b); The sealing member (203) further comprises an extrusion strip (203d) and an extrusion plate (203e), wherein the extrusion strip (203d) is located in the fixing frame (203b), and the extrusion plate (203e) is fixed in the connecting head (201a); The fastener (204) comprises a rotating plate (204a), a stabilizing block (204b) and a positioning ring (204c); the rotating plate (204a) is located inside the fixing frame (203b); one side of the stabilizing block (204b) is fixed to the connecting sleeve (203a); the positioning ring (204c) is fixed inside the stabilizing block (204b); and the rotating plate (204a) is movably connected to the outer side of the positioning ring (204c); The trigger member (205) comprises a stress ring (205a) and a positioning column (205b), wherein the stress ring (205a) is located on one side of the connecting sleeve (203a), one end of the positioning column (205b) is fixed to the connecting sleeve (203a), and the stress ring (205a) is movably connected to the positioning column (205b); The trigger member (205) further comprises an elastic sleeve (205c), two ends of which are respectively fixed to the force-bearing ring (205a) and the connecting sleeve (203a), and are sleeved on the outside of the positioning column (205b).

2. The pneumatic conveying device with stable connection according to claim 1, characterized in that: The connecting piece (201) comprises a connecting head (201a), a rotating sleeve (201b) and a positioning block (201c); the connecting head (201a) is fixed to one side of the connecting hose (105); the rotating sleeve (201b) is located outside the conveying pipe (104); one side of the positioning block (201c) is fixed to the connecting head (201a); a positioning groove (201b-1) is provided on the rotating sleeve (201b); the positioning block (201c) slides in the positioning groove (201b-1); the rotating sleeve (201b) is provided with a through groove (201b-2); the through groove (201b-2) is communicated with the positioning groove (201b-1).

3. The pneumatic conveying device with stable connection according to claim 2, characterized in that: The connecting piece (201) further comprises a limit block (201d), wherein the limit block (201d) is fixed to one side of the conveying pipeline (104), a limit groove (201a-1) is provided in the connecting head (201a), and the limit block (201d) slides in the limit groove (201a-1).

4. The pneumatic conveying device with stable connection according to claim 2 or 3, characterized in that: The locking member (202) comprises a support block (202a) and a limiting column (202b); the support block (202a) is fixed to the top of the delivery pipe (104); the limiting column (202b) is inserted into the support block (202a); a limiting hole (201b-3) is provided on the rotating sleeve (201b); and the limiting column (202b) is engaged with the limiting hole (201b-3).

5. The pneumatic conveying device with stable connection according to claim 4, characterized in that: The locking member (202) further comprises a fixing block (202c) and a spring (202d), wherein the fixing block (202c) is fixed to the top end of the limiting column (202b), and the two ends of the spring (202d) are respectively fixed to the fixing block (202c) and the supporting block (202a), and are sleeved on the outside of the limiting column (202b).

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