Air connector of pump

Abstract

The utility model relates to the technical field of pump connectors, and discloses an air connector of a pump, which comprises a pump body and a pump body head fixed at an air inlet end of the pump body. The connector is provided with a buckling part which is used for being connected with the pump body head in a clamping manner; one end of the connecting pipe is communicated with the connector, and the other end of the connecting pipe is connected with an external air source; the joint fixing assembly is mounted above the pump body head; the connector fixing assembly comprises a clamping plate part, a ring sleeve plate, a rotating axis, a pressing plate, a reset spring and a locking plate. Through the linkage design of the pressing plate and the reset spring, the connector can be assembled and disassembled without any tool, and the connector is particularly suitable for narrow space or emergency working conditions; the engagement between the locking plate and the buckling part can be relieved by pressing the lower pressing plate, and the operation time is greatly shortened compared with that of traditional threaded connection.

Description

TECHNICAL FIELD

[0001] The utility model relates to pump connector field especially relates to a pump air connector. BACKGROUND

[0002] At present, pump air connector is widely used in industry, medical treatment and other fields, is used for connecting pump body and external gas source or pipeline, the air connector in prior art adopts threaded connection or buckle type fixed, and has the following defects:

[0003] Complicated operation: part connector adopts fixed bolt and locks, although such sealing is very strong, but the connector needs to be installed or disassembled with the aid of a tool, and the efficiency is low, especially inconvenient to operate in a small space. UTILITY MODEL CONTENTS

[0004] In order to solve the technical problem that pump body connector dismounting operation is complicated, the utility model provides a pump air connector.

[0005] The utility model adopts the following technical scheme: a pump air connector, including pump body and pump body head, the pump body head is fixed to the air inlet end of pump body,

[0006] The connector is provided with a buckle part for clamping connection with the pump body head; the connecting pipe is communicated with the connector at one end and connected with the external gas source at the other end; the connector fixing assembly is installed above the pump body head; the connector fixing assembly includes a clamping plate part, a ring sleeve plate, a rotating shaft, a pressing plate, a reset spring and a locking plate.

[0007] The buckle part is circumferentially around, and the locking plate is clamped on the circumferential convex part of the buckle part.

[0008] The ring sleeve plate is installed on the outer wall of the clamping plate part; the ring sleeve plate is hinged to the side wall of the pump body head through the rotating shaft, the reset spring is fixed below the pressing plate, the locking plate is installed at the front end of the clamping plate part, the locking plate is engaged with the buckle part to form locking.

[0009] The buckle part of the connector is aligned with the clamping groove of the pump body head and is pressed vertically, the ring sleeve plate is extruded and shrinks inward, tightly wraps the outer wall of the connecting pipe, and forms interference fit sealing. When the buckle part is completely embedded in the pump body head, the locking plate is automatically clamped into the circumferential convex part of the buckle part under the elastic force of the reset spring, and one-time locking is completed. The locking plate is further engaged with the buckle part by lifting the pressing plate through the reset spring, and secondary locking is formed to ensure that it is not loose in a high-pressure environment.

[0010] As a further improvement of the above scheme, the reset spring is fixed between the pump body head and the pressing plate. The reset spring is in a natural extension state, pushes the pressing plate to be upturned, and the locking plate is separated from the buckle part.

[0011] As a further improvement of the above-mentioned scheme, the ring sleeve plate is hinged with the pump body head through the rotation axis, and the opening is kept upward to facilitate the insertion of the connecting head.

[0012] As a further improvement of the above-mentioned scheme, the clamping plate part, the ring sleeve plate, the pressing plate and the locking plate are integrally formed plate materials.

[0013] As a further improvement of the above-mentioned scheme, the pressing plate is pressed down to overcome the elastic force of the reset spring, so that the locking plate is separated from the clamping part, and the one-handed quick disassembly is realized.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1、The utility model discloses a linkage design of the pressing plate and the reset spring, and the installation and disassembly of the joint can be completed without any tool, especially suitable for narrow space or emergency working condition.

[0016] 2、The utility model discloses that the locking plate and the clamping part are disengaged by pressing down the pressing plate, and the operation time is greatly shortened compared with the traditional threaded connection. DRAWINGS

[0017] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0018] Fig. 2 It is the joint fixing assembly connecting structure schematic diagram of the utility model.

[0019] Main symbol explanation:

[0020] 1, pump body;2, pump body head;3, connecting head;31, clamping part;4, connecting pipe;5, joint fixing assembly;51, clamping plate part;52, ring sleeve plate;53, rotation axis;54, pressing plate;55, reset spring;56, locking plate. CONCRETE IMPLEMENTING METHOD

[0021] Below, combining the drawings and the concrete implementing method, the utility model is further described, and it is explained that, under the premise of not conflicting, the following described each embodiment or each technical feature can be combined to form a new embodiment.

[0022] Embodiment 1:

[0023] Please combine Figs. 1-2 The embodiment proposes an air joint of pump, including pump body 1 and pump body head 2, and the pump body head 2 is fixed to the air inlet end of the pump body 1.

[0024] Connecting head 3, connecting head 3 is provided with clamping part 31, for clamping and connecting with pump body head 2;

[0025] Connecting pipe 4, one end of connecting pipe 4 is communicated with connecting head 3, and the other end is used for connecting external air source;

[0026] Joint fixing assembly 5 is installed above pump body head 2.

[0027] The joint fixing assembly 5 comprises a clamping plate part 51, a ring sleeve plate 52, a rotating shaft 53, a pressing plate 54, a reset spring 55 and a locking plate 56; further, the clamping plate part 51, the ring sleeve plate 52, the pressing plate 54 and the locking plate 56 are integrally formed plate materials.

[0028] It should be noted that the clamping buckle part 31 is circumferentially around, and the locking plate 56 is clamped on the circumferential protrusion of the clamping buckle part 31.

[0029] The ring sleeve plate 52 is installed on the outer wall of the clamping plate part 51; the ring sleeve plate 52 is hinged to the side wall of the pump body head 2 through the rotating shaft 53, the reset spring 55 is fixed below the pressing plate 54, the locking plate 56 is installed at the front end of the clamping plate part 51, and the locking plate 56 is engaged with the clamping buckle part 31 to form a lock.

[0030] Further, the reset spring 55 is fixed between the pump body head 2 and the pressing plate 54. The reset spring 55 is in a natural stretching state, pushes the pressing plate 54 to be upturned, and the locking plate 56 is separated from the clamping buckle part 31. The ring sleeve plate 52 is hinged to the pump body head 2 through the rotating shaft 53, and the opening is kept upward to facilitate the insertion of the connecting head 3.

[0031] Specifically, the clamping buckle part 31 of the connecting head 3 is aligned with the clamping groove of the pump body head 2 and is vertically pressed down, the ring sleeve plate 52 is extruded and shrinks inward, tightly wraps the outer wall of the connecting pipe 4, and forms an interference fit seal. When the clamping buckle part 31 is completely embedded in the pump body head 2, the locking plate 56 is automatically clamped into the circumferential protrusion of the clamping buckle part 31 under the elastic force of the reset spring 55, and a first locking is completed. Through the lifting of the pressing plate 54 by the reset spring 55, the locking plate 56 is further engaged with the clamping buckle part 31 to form a second locking, so that the connection is not loosened in a high-pressure environment.

[0032] More specifically, the pressing plate 54 is pressed down, the elastic force of the reset spring 55 is overcome, and the locking plate 56 is separated from the clamping buckle part 31. Single-handed quick disassembly is realized.

[0033] The specific implementation steps of the utility model are as follows:

[0034] The air joint of the utility model realizes quick disassembly and stable locking through a double structure of mechanical clamping + elastic reset, and the specific working process is as follows:

[0035] Initial state:

[0036] The reset spring 55 is in a natural stretched state, pushing the pressing plate 54 to be upturned, and the locking plate 56 is separated from the buckle part 31. The ring sleeve plate 52 is hinged to the pump body head 2 through the rotating shaft 53, and the opening is kept upward, facilitating the insertion of the connecting head 3.

[0037] Installation process:

[0038] The buckle part 31 of the connecting head 3 is vertically pressed to be aligned with the clamping groove of the pump body head 2, the ring sleeve plate 52 is squeezed inward to shrink, tightly wrapping the outer wall of the connecting pipe 4 to form an interference fit seal.

[0039] When the buckle part 31 is completely embedded in the pump body head 2, the locking plate 56 is automatically clamped into the circumferential protrusion of the buckle part 31 under the elastic force of the reset spring 55, completing a locking.

[0040] Through the lifting of the pressing plate 54 by the reset spring 55, the locking plate 56 is further engaged with the buckle part 31 to form a secondary locking, ensuring that it is not loosened in a high-pressure environment.

[0041] Disassembly process:

[0042] The pressing plate 54 is pressed down to overcome the elastic force of the reset spring 55, so that the locking plate 56 is separated from the buckle part 31. The single-handed quick disassembly is realized.

[0043] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall belong to the scope of protection required by the present application.

Claims

1. An air fitting for a pump, characterized in that The utility model relates to a kind of air pump, including pump body (1) and pump body head (2), the pump body head (2) is fixed in the air inlet end of pump body (1); Connecting head (3), the connecting head (3) is equipped with buckle part (31), for with pump body head (2) card engagement connection; Connecting pipe (4), one end of the connecting pipe (4) is communicated with connecting head (3), and the other end is used to connect external air source; Joint fixing assembly (5), the joint fixing assembly (5) is installed above the pump body head (2); The joint fixing assembly (5) includes clamping plate part (51), ring sleeve plate (52), rotating axis (53), pressing plate (54), reset spring (55) and locking plate (56); The ring sleeve plate (52) is installed on the outer wall of the clamping plate part (51);The ring sleeve plate (52) is hinged with the side wall of pump body head (2) by rotating axis (53), the reset spring (55) is fixed below pressing plate (54), the locking plate (56) is installed in the front end of the clamping plate part (51), the locking plate (56) is engaged with buckle part (31), and locking is formed.

2. An air fitting for a pump as claimed in claim 1, wherein, The buckle part (31) is circumferentially around, and the locking plate (56) is clamped on the circumferential projection of the buckle part (31).

3. An air fitting for a pump as defined in claim 1, wherein The clamping plate part (51), ring sleeve plate (52), pressing plate (54) and locking plate (56) are integrally formed sheet material.

4. An air fitting for a pump as defined in claim 1, wherein The reset spring (55) is fixed between the pump body head (2) and the pressing plate (54).

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