Quick connector assembly structure of gun barrel

Abstract

The utility model provides a quick connector assembling structure of a gun barrel, and belongs to the technical field of cleaning machines. The quick connector solves the problem that an existing quick connector can be accurately inserted into a spring seat during secondary insertion. The quick connector assembly structure of the gun barrel comprises a quick connector, a connecting sleeve and a connector base arranged in the connecting sleeve, a spring is arranged in the connector base, a limiting step face is arranged in the left end portion of the connecting sleeve, the left end of the spring abuts against the limiting step face, a straight-barrel-shaped inner cavity is formed in the connector base, a spring base is arranged in the inner cavity, and the spring base abuts against the limiting step face. The right end of the spring abuts against the spring seat, a limiting boss is arranged on the inner wall of the right end of the inner cavity, and the quick connector is arranged in the limiting boss and the spring seat in a penetrating mode and abuts against the spring seat. According to the structure, the spring and the spring seat are coaxially arranged all the time, and meanwhile the quick connector can be conveniently and accurately arranged in the limiting boss and the spring seat in a penetrating mode next time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of cleaning machine, especially a quick connector assembly structure of gun barrel. BACKGROUND

[0002] The high-pressure cleaning machine is through the power device makes high-pressure plunger pump produces high-pressure water, high-pressure water again through the spray gun sprays, when the impact of water is greater than the adhesion of dirt and object surface, can wash away the dirt on the object surface, thereby washes the object surface. The spray gun is one of important components in the high-pressure cleaning machine, and the gun barrel and the gun barrel are generally connected and disassembled quickly by the quick connector.

[0003] At present, the patent network discloses a kind of metal gun for high-pressure cleaning machine

authorized publication number: CN201997412U

[0004] The metal gun described above has the following defects: when the connecting head is pulled out from the connecting sleeve, the right end of the conical spring is not supported, so that the conical spring is easy to fall out of the installation position, thereby affecting the assembly of the connecting head and the connecting sleeve next time. INVENTION CONTENTS

[0005] The utility model aims at the above-mentioned problems existing in prior art, and provides a quick connector assembly structure of gun barrel, and the technical problems to be solved by the utility model are how to accurately insert the spring seat when the quick connector is inserted for the second time.

[0006] The utility model can be realized by the following technical schemes:

[0007] A quick connector assembly structure of gun barrel, including quick connector, connecting sleeve and connector seat arranged in connecting sleeve, spring is arranged in connector seat, the left end of spring is abutted on limit step surface in the left end part of connecting sleeve, and the utility model is characterized in that, the inner cavity of straight cylinder type is arranged in connector seat, spring seat is arranged in the inner cavity, the right end of spring is abutted on spring seat, the inner wall of the right end of inner cavity has limit boss, and quick connector is arranged in limit boss and spring seat, and quick connector is abutted on spring seat.

[0008] The limiting step in the structure limits the left direction of the spring to avoid the spring from coming out of the left end of the joint seat, the spring seat limits the right direction of the spring to avoid the spring from coming out of the right end of the joint seat, the limiting boss limits the spring seat to avoid the spring seat from coming out of the right end of the joint seat, thereby ensuring that the spring and the spring seat are located in the joint seat, the straight cylindrical inner cavity facilitates the movement of the spring seat and the spring in the inner cavity, and the spring and the spring seat are coaxially arranged at all times, and the quick connector can be accurately inserted into the limiting boss and the spring seat for the next time; secondly, after the quick connector is inserted into the limiting boss and the spring seat, the limiting boss and the spring seat support and position the quick connector, so that the quick connector is not easy to shake, and the stability of the quick connector installation is improved.

[0009] In the quick connector assembly structure of the gun barrel, the left end of the quick connector is sequentially provided with a plug-in part and a sealing part from left to right, the outer diameter of the plug-in part is smaller than that of the sealing part, a transition part one is formed between the plug-in part and the sealing part, the plug-in part is inserted into the spring seat, and the transition part one abuts against the spring seat. When the quick connector is inserted into the limiting boss and the spring seat, the transition part one abuts against the spring seat, so that the spring is in a compressed state.

[0010] In the quick connector assembly structure of the gun barrel, a sealing ring is arranged in the inner cavity, the sealing ring is located on the right side of the spring seat, and the sealing ring is tightly attached to the outer periphery of the sealing part. The sealing ring seals the space between the outer periphery of the sealing part and the inner wall of the inner cavity, so that water leakage is prevented.

[0011] In the quick connector assembly structure of the gun barrel, the left end of the quick connector has an abutting part, the abutting part is located on the right side of the sealing part, the outer diameter of the abutting part is greater than that of the sealing part, a transition part two is formed between the sealing part and the abutting part, a limiting sleeve is arranged in the joint seat, the limiting sleeve is located on the right side of the sealing ring, the limiting sleeve is arranged on the outer periphery of the abutting part, the left end of the limiting sleeve has an inwardly turned flange, and the transition part two abuts against the flange. When the quick connector and the joint seat are in the plug-in state, the transition part one abuts against the spring seat, the transition part two abuts against the flange, and the sealing ring is located between the spring seat and the flange, that is, the spring seat and the flange limit the sealing ring, so that displacement of the sealing ring is avoided, and the sealing effect of the sealing ring is improved.

[0012] In the quick connector assembly structure of the gun barrel, the sealing ring is tightly attached to the spring seat and the flange. This structure enables the sealing ring to be in contact with multiple surfaces, and the sealing effect of the sealing ring on the part is improved.

[0013] The spring seat is annular, and a positioning step is formed on the outer side wall of the spring seat, and the right end of the spring abuts against the positioning step.

[0014] Compared with the prior art, the quick connector assembly structure of the gun barrel has the following advantages: the limiting step face in the structure limits the left direction of the spring to avoid the spring from being pulled out from the left end of the connector seat, the spring seat limits the right direction of the spring to avoid the spring from being pulled out from the right end of the connector seat, the limiting boss limits the spring seat to avoid the spring seat from being pulled out from the right end of the connector seat, thereby ensuring that the spring and the spring seat are located in the connector seat, the straight cylindrical inner cavity facilitates the movement of the spring seat and the spring in the inner cavity, and the spring and the spring seat are coaxially arranged at all times, and the quick connector can be accurately arranged in the limiting boss and the spring seat for the next time; secondly, after the quick connector is arranged in the limiting boss and the spring seat, the limiting boss and the spring seat support and position the quick connector, and the unique function of two supporting and positioning makes the quick connector not easy to shake, and the stability of the quick connector installation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a cross-sectional structure schematic view of the utility model.

[0016] In the figure, 1, quick connector; 10, plug-in part; 11, sealing part; 12, transition part one; 13, abutting part; 14, transition part two; 2, connecting sleeve; 20, limiting step face; 3, connector seat; 30, limiting boss; 31, limiting sleeve; 310, flange; 32, inner cavity; 4, spring; 5, spring seat; 50, positioning step; 6, sealing ring. DETAILED DESCRIPTION

[0017] The following is a specific embodiment of the utility model and is further described in combination with the drawings, but the utility model is not limited to these embodiments.

[0018] As Figure 1As shown, the quick connector assembly structure of the gun barrel includes a quick connector 1, a connecting sleeve 2, and a connector seat 3 arranged in the connecting sleeve 2. The connector seat 3 is provided with a spring 4. The left end of the connecting sleeve 2 is provided with a limiting step surface 20. The left end of the spring 4 abuts against the limiting step surface 20. The connector seat 3 has a straight cylindrical inner cavity 32. The inner cavity 32 is provided with a spring seat 5. The right end of the spring 4 abuts against the spring seat 5. The spring seat 5 is annular. The outer side wall of the spring seat 5 is provided with a positioning step 50. The right end of the spring 4 abuts against the positioning step 50. The inner wall of the right end of the inner cavity 32 is provided with a limiting boss 30. The quick connector 1 is arranged in the limiting boss 30 and the spring seat 5 and abuts against the spring seat 5. The limiting step surface 20 in the structure limits the left direction of the spring 4, avoiding the spring 4 from being pulled out from the left end of the connector seat 3. The spring seat 3 limits the right direction of the spring 4, avoiding the spring 4 from being pulled out from the right end of the connector seat 3. The limiting boss 30 limits the spring seat 5, avoiding the spring seat 5 from being pulled out from the right end of the connector seat 3, thereby ensuring that the spring 4 and the spring seat 5 are located in the connector seat 3. The straight cylindrical inner cavity 32 facilitates the movement of the spring seat 5 and the spring 4 in the inner cavity 32. The spring 4 and the spring seat 5 are coaxially arranged at all times. The quick connector 1 can be accurately arranged in the limiting boss 30 and the spring seat 5 next time. After the quick connector 1 is arranged in the limiting boss 30 and the spring seat 5, the limiting boss 30 and the spring seat 5 support and position the quick connector 1. The unique function of two supports and positions makes the quick connector 1 not easy to shake, thereby improving the stability of the installation of the quick connector 1.

[0019] As Figure 1As shown, the left end of the quick connector 1 is sequentially provided with a plug-in part 10 and a sealing part 11 from left to right, the outer diameter of the plug-in part 10 is smaller than that of the sealing part 11, a transition part one 12 is formed between the plug-in part 10 and the sealing part 11, the plug-in part 10 is inserted into the spring seat 5, and the transition part one 12 abuts against the spring seat 5. A sealing ring 6 is arranged in the connector seat 3, the sealing ring 6 is located at the right side of the spring seat 5, and the sealing ring 6 tightly abuts against the outer peripheral surface of the sealing part 11. The left end of the quick connector 1 has an abutting part 13, the abutting part 13 is located at the right side of the sealing part 11, the outer diameter of the abutting part 13 is larger than that of the sealing part 11, a transition part two 14 is formed between the sealing part 11 and the abutting part 13, a limiting sleeve 31 is arranged in the connector seat 3, the limiting sleeve 31 is located at the right side of the sealing ring 6, the limiting sleeve 31 is sleeved on the outer peripheral surface of the abutting part 13, the left end of the limiting sleeve 31 has an inwardly turned flange 310, the transition part two 14 abuts against the flange 310, and the sealing ring 6 tightly abuts against the spring seat 5 and the flange 310. When the quick connector 1 and the connector seat 3 are in the plug-in state, the transition part one 12 abuts against the spring seat 5, the transition part two 14 abuts against the flange 310, and the sealing ring 6 is located between the spring seat 5 and the flange 310, that is, the spring seat 5 and the flange 310 limit the sealing ring 6, so as to avoid displacement of the sealing ring 6 and ensure high sealing effect.

[0020] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A quick coupling assembly structure of a gun barrel, comprising a quick coupling (1), a connecting sleeve (2) and a coupling seat (3) arranged in the connecting sleeve (2), a spring (4) is arranged in the coupling seat (3), a limiting step surface (20) is arranged in the left end of the connecting sleeve (2), and the left end of the spring (4) abuts against the limiting step surface (20), characterized in that, The joint seat (3) has a straight inner cavity (32) therein, a spring seat (5) is arranged in the inner cavity (32), the right end of the spring (4) abuts against the spring seat (5), the inner wall of the right end of the inner cavity (32) has a limiting boss (30), the quick connector (1) is arranged in the limiting boss (30) and the spring seat (5), and the quick connector (1) abuts against the spring seat (5).

2. The quick connector assembly of claim 1, wherein: The left end of the quick connector (1) is sequentially provided with a plug-in part (10) and a sealing part (11) from left to right, the outer diameter of the plug-in part (10) is smaller than that of the sealing part (11), a transition part I (12) is formed between the plug-in part (10) and the sealing part (11), the plug-in part (10) is arranged in the spring seat (5), and the transition part I (12) abuts against the spring seat (5).

3. The quick connector assembly of claim 2, wherein: The inner cavity (32) is provided with a sealing ring (6), the sealing ring (6) is located at the right side of the spring seat (5), and the sealing ring (6) is tightly attached to the outer peripheral surface of the sealing part (11).

4. The quick connector assembly of claim 3, wherein: The left end of the quick connector (1) has an abutting part (13), the abutting part (13) is located at the right side of the sealing part (11), the outer diameter of the abutting part (13) is greater than that of the sealing part (11), a transition part II (14) is formed between the sealing part (11) and the abutting part (13), the joint seat (3) is provided with a limiting sleeve (31), the limiting sleeve (31) is located at the right side of the sealing ring (6), the limiting sleeve (31) is arranged on the outer peripheral surface of the abutting part (13), the left end of the limiting sleeve (31) has an inwardly turned flange (310), and the transition part II (14) abuts against the flange (310).

5. The quick connector assembly of claim 4, wherein: The sealing ring (6) In close contact with spring seat (5) and flange (310).

6. A quick connector assembly for a gun barrel according to any one of claims 1 to 5, characterised in that, The spring seat (5) is annular, a positioning step (50) is formed in the outer side wall of the spring seat (5), and the right end of the spring (4) abuts against the positioning step (50).

Images