A quick connect device for a sprayer line

Abstract

The application discloses a quick connecting device for a pipeline of a spraying machine, which comprises a sleeve and a plug. The large end of the sleeve is provided with a rotatable lock catch and a lock plate for clamping, and is internally designed with a sealing slope. The lock catch is of a central symmetrical structure and is arranged with two curved sliding grooves, and the curved sliding grooves are designed with self-locking surfaces at the ends. The lock plate is installed on the sleeve through a locking belt. The insertion end of the plug is provided with a circumferential groove and a clamping step. The circumferential groove is internally provided with a O-shaped rubber sealing ring, and three limiting shoulders are uniformly arranged along the circumference of the plug barrel wall to prevent excessive circumferential displacement of the plug after the plug is matched with the sleeve, thereby affecting the sealing property of the connection. After the plug is manually inserted into the sleeve, the O-shaped rubber sealing ring is matched with the sealing slope in the sleeve to realize sealing, and then the lock catch is rotated to tighten the lock plate. The lock plate and the self-locking surfaces of the curved sliding grooves form self-locking, so that the pipeline is reliably connected. The application has good sealing property, high connection reliability and can realize quick connection of the pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of farmland spraying equipment pipeline connection, and mainly relates to a spraying machine pipeline quick connection device. BACKGROUND

[0002] With the mechanization of farmland spraying operation, the quick connection between pipelines is increasingly valued. At present, U-shaped buckle joints are mostly used to connect farmland spraying machine pipelines. When connecting, the buckle needs to be inserted into the clamping groove. When disconnecting, manual operation is laborious, and tools need to be used to take out the U-shaped buckle. The whole process is time-consuming and laborious. In order to improve the efficiency of pipeline connection, a new technical scheme is needed to solve the above problems. SUMMARY

[0003] In view of the above problems, in order to solve the problems of low efficiency of farmland spraying machine pipeline connection steps and poor connection reliability, the present application designs a spraying machine pipeline quick connection device. The technical scheme of the present application is: a spraying machine pipeline quick connection device, comprising a sleeve, the large end of the sleeve is provided with a rotatable lock and a lock plate for clamping, and the inside is designed with a sealing inclined surface; the lock plate is of axisymmetric structure; a locking belt; an O-shaped sealing ring; a plug for completing the connection, characterized in that:

[0004] The included angle between the sealing inclined surface in the sleeve and the coaxial line of the sleeve is 40°;

[0005] Further, the lock is of central symmetric structure and is arranged with two curved grooves, and the curved grooves are designed with self-locking surfaces at the ends;

[0006] Further, the locking angle between the self-locking surface and the lock plate in the locked state is 3°;

[0007] Further, the lock plate is installed on the sleeve through the locking belt, and the locking belt is detachable;

[0008] Further, the O-shaped sealing ring cooperates with the O-shaped groove, and the O-shaped groove is located at the insertion end of the plug;

[0009] Further, the cylindrical wall of the plug is uniformly arranged with three limiting shoulders, and the limiting shoulders are gap-fitted with the inner surface of the large end of the sleeve.

[0010] Further, the large end of the plug is designed with a clamping step, which cooperates with the lock plate in the installed state to form a connection.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] The device structure principle is reasonable, when using, the operator can quickly connect the pipeline, only need to rotate the lock when cutting off the connection, the operation is convenient. The parts of the application can be disassembled, the spare parts can be replaced, and the pipeline connection efficiency of the field spraying machine can be better adapted. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic view of a spraying machine pipeline quick connecting device according to the application;

[0014] Figure 2 is an exploded schematic view of a spraying machine pipeline quick connecting device according to the application;

[0015] Figure 3 is Figure 1 A-A sectional view of;

[0016] Figure 4 is Figure 3 B part sealing structure enlarged schematic view;

[0017] Figure 5 is a lock of a spraying machine pipeline quick connecting device according to the application;

[0018] Figure 6 is Figure 5 C part enlarged schematic view

[0019] In the figure, 201, sleeve; 202, lock; 203, O-shaped sealing ring; 204, limiting shoulder; 205, plug; 206, lock plate; 207, locking belt; 401, clamping step; 402, circumferential groove 501, limiting block; 502, curved sliding groove; 601, self-locking surface. DETAILED DESCRIPTION

[0020] In order to make the content of the application more easily be clearly understood, the application is further explained in detail below according to specific examples and in combination with the drawings.

[0021] Example one

[0022] Please refer to Figures 1-6 A spraying machine pipeline quick connecting device, which comprises:

[0023] Sleeve 201 and plug 205, the large end of sleeve 201 is provided with rotatable lock 202 and lock plate 206 for clamping.

[0024] The sleeve 201 is designed with a sealing slope inside, which cooperates with the O-shaped rubber sealing ring 203 to form a seal.

[0025] The lock 202 is a center-symmetrical structure and is arranged with two curved sliding grooves 502, which facilitates tightening the lock plate 206.

[0026] The curved chute 502 is designed with a self-locking surface 601 at the end, which cooperates with the lock plate 206 to form self-locking, preventing connection failure caused by mechanical vibration.

[0027] The lock plate 206 is installed on the sleeve 201 through the locking belt 207, which can be freely detached, facilitating the replacement of the accessory lock plate 206.

[0028] The insertion end of the plug 205 is provided with a circumferential groove 402, and a O-shaped rubber sealing ring 203 is installed in the circumferential groove 402.

[0029] Further, the plug 205 is uniformly arranged with three limiting shoulders 204 on the circumferential wall, which prevents excessive circumferential displacement of the plug 205 after cooperating with the sleeve 201, thereby affecting the connection sealing performance.

[0030] The working process of the present application is as follows:

[0031] First, the plug 205 is aligned with the center axis of the large end of the sleeve 201 and inserted until the front end of the plug 205 abuts against the sleeve 201, at this time the three limiting shoulders arranged axially on the plug 205 have a distance of 2mm from the sleeve 201. The O-shaped rubber sealing ring is extruded to form a seal while the plug 205 and the sleeve 201 are tightly inserted. The insertion process is completed. Clockwise rotating the lock buckle 202, the lock plate 206 is tightened to the center under the action of the force of the lock buckle 202, until the lock plate 206 and the self-locking surface 601 of the lock buckle 202 complete the cooperation, at this time the middle part of the lock plate 206 on both sides and the clamping step 401 of the plug 205 complete the fastening cooperation, so that the axial displacement of the plug 205 away from the sleeve 201 is limited, and the spray machine pipeline completes the quick connection. When the accessory lock buckle 202 and the lock plate 206 need to be replaced, the lock buckle is counterclockwise rotated to make the limiting block 501 disengage from the cooperation with the sleeve 201 body, and the lock buckle 202 is removed; the locking belt 207 is pinched by the fingers to disengage the lock plate 206 from the cooperation with the sleeve 201, so that the lock plate 206 is removed.

[0032] The plug 205 is inserted into the sleeve 201, and then the lock buckle 202 is rotated clockwise to realize the quick connection and sealing of the plug 205 and the sleeve 201, which is simple in operation and high in connection and sealing reliability.

Claims

1. A quick-connect device for sprayer piping, characterized in that; It includes sleeve (201) and plug (205), the large end of sleeve (201) is provided with rotatable lock catch (202) and lock plate (206) for clamping; the inside of sleeve (201) is designed with sealing slope, which cooperates with O-shaped rubber sealing ring (203) to form sealing; the lock catch (202) is centrally symmetric in shape and is provided with two curved sliding grooves (502), which facilitate tightening of lock plate (206); the curved sliding grooves (502) are designed with self-locking surfaces (601) at the ends, which facilitate cooperation with lock plate (206) to form self-locking and prevent connection failure due to mechanical vibration; the lock plate (206) is installed on sleeve (201) by locking band (207), and the locking band (207) can be freely detached, facilitating replacement of accessory lock plate (206); the insertion end of plug (205) is provided with circumferential groove (402) and clamping step (401); The plug (205) is uniformly provided with three limiting shoulders (204) on the circumference of the barrel wall; The working process of the quick connecting device of the sprayer pipeline is as follows: the plug (205) is inserted into the large end center axis of the sleeve (201) in alignment, until the front end of the plug (205) abuts against the sleeve (201), at this time the three limiting shoulders (204) arranged axially on the plug (205) have a distance of 2mm from the sleeve (201); the plug (205) and the sleeve (201) are inserted tightly at the same time, and the O-shaped rubber sealing ring is sealed after being extruded; the insertion process is completed; Clockwise rotate the lock catch (202), and the lock plate (206) is tightened to the center under the action of the force of the lock catch (202), until the lock plate (206) and the self-locking surface (601) of the lock catch (202) complete cooperation, at this time the middle part of both sides of the lock plate (206) and the clamping step (401) of the plug (205) complete fastening cooperation, so that the axial displacement of the plug (205) away from the sleeve (201) is limited, and the sprayer pipeline is completed quickly connected; when it is necessary to replace the accessory lock catch (202) and the lock plate (206), rotate the lock catch counterclockwise to release the cooperation of the limiting block (501) and the sleeve (201) body, and remove the lock catch (202); pinch the locking band (207) on both sides with fingers to release the cooperation of the lock plate (206) and the sleeve (201), and thus remove the lock plate (206).

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