Quick safety connector

Abstract

The utility model provides a quick safety joint, which relates to the technical field of mechanical parts, and comprises an outer locking sleeve and a joint base, an inner locking sleeve is arranged between the outer locking sleeve and the joint base, the inner locking sleeve comprises annularly distributed extrusion blocks, and an extrusion gap is formed between every two extrusion blocks; the outer locking sleeve is connected with the connector base through threads, when the outer locking sleeve and the connector base rotate oppositely, the inner portions of the outer locking sleeve and the connector base extrude the extrusion blocks so that the extrusion blocks can be drawn close to the middle, and when the outer locking sleeve and the connector base are unscrewed towards the two ends, the outer locking sleeve and the connector base are screwed off. And the pressure of the inner parts of the outer locking sleeve and the joint base for pressing the extrusion block is reduced, so that the extrusion block is dispersed to the periphery. The pipeline clamping device has the beneficial effects that the inner locking sleeve is arranged, a pipeline is inserted into the inner locking sleeve, and the extrusion blocks of the inner locking sleeve are extruded to be close to the middle to clamp the pipeline, so that the pipeline can be quickly clamped, and the clamping stability can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical parts, in particular to a quick safety connector. Background Art

[0002] A quick connector is a type of connector that can quickly connect and disconnect pipes or gas lines. It is widely used in various fields, such as industry, medicine, and scientific research. It is mainly used to connect two sections of pipes so that the two sections can be connected. For convenient operation, the quick connector needs to be able to quickly connect with the pipe. For safety reasons, the quick connector is also required to firmly lock the pipe when connected. If the pipe and quick connector are disconnected during use, it will easily cause gas or liquid leakage, which may lead to safety accidents.

[0003] The technical content disclosed in the Chinese patent document (Announcement No.: CN204042276U, Patent Name: A Trachea Quick Connector) is: including an axis, an ejector shaft, a sleeve, and a joint cap, characterized in that: the axis is slidably connected to the joint cap, the ejector sleeve is arranged on the outer circumference of the axis, a raised step surface is formed inside the axis, and sealing rings are provided at both ends of the raised step surface. The front end of the ejector shaft is recessed inward to form a right-angled section, the right end of the right-angled section extends outward to form a chuck, and the ejector shaft is opposite to the other end of the chuck. A raised boss is provided, and the sleeve slides between the boss and the steel ring. An ejector spring is sleeved on the ejector shaft. The sleeve is sleeved on the outer circumferential surface of the ejector shaft and can slide axially on the outer circumferential surface of the ejector shaft. A through groove is provided on the inner side of the sleeve, and the position of the through groove corresponds to the position of the right-angle section of the ejector shaft. A steel ball groove is provided on the contact surface between the sleeve and the chuck. An air cavity is provided in the joint cap, and a sealed spring is installed in the air cavity. One end of the sealed spring is fixed on the inner wall of the joint cap, and the other end is connected to the sealing ring on the stepped surface of the shaft center protrusion.

[0004] From the above implementation scheme and the corresponding drawings, it can be seen that the trachea quick connector uses steel balls to squeeze the trachea to clamp the trachea, but the steel balls themselves can also roll. Therefore, when the trachea is pulled by a large external force, it is easy for the trachea and the interface to disengage, causing a safety accident. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides an inner locking sleeve. The pipe is inserted into the inner locking sleeve, and the extrusion block of the inner locking sleeve is squeezed and moved toward the middle to clamp the pipe, which can not only quickly clamp the pipe, but also ensure the stability of the clamping.

[0006] In order to solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] A quick safety joint comprises an outer locking sleeve and a joint base, an inner locking sleeve is arranged between the outer locking sleeve and the joint base, and the inner locking sleeve comprises extrusion blocks distributed in an annular shape, with an extrusion gap formed between every two extrusion blocks;

[0008] The outer locking sleeve is connected to the joint base by a threaded connection. When the outer locking sleeve and the joint base are rotated toward each other, the inner portion of the outer locking sleeve and the joint base squeezes the extrusion block, causing the extrusion block to move toward the middle. When the outer locking sleeve and the joint base are unscrewed toward both ends, the pressure of the outer locking sleeve and the inner portion of the joint base pressing the extrusion block decreases, causing the extrusion block to spread out to the periphery.

[0009] The inner locking sleeve is plugged into the pipeline, and the pipeline is plugged into the circular hole surrounded by the extrusion block.

[0010] Furthermore, a second inclined surface and a third inclined surface are provided at both ends of the extrusion block, a first inclined surface is provided inside the outer locking sleeve, and a fourth inclined surface is provided inside the joint base.

[0011] Furthermore, when the outer locking sleeve and the joint base rotate toward each other, the first inclined surface gradually approaches the second inclined surface and pushes the extrusion block toward the joint base until the third inclined surface and the fourth inclined surface are in contact with each other. As the first inclined surface and the fourth inclined surface gradually move closer to the extrusion block, the pressure of the first inclined surface and the fourth inclined surface on the second inclined surface and the third inclined surface increases, and the extrusion block gradually moves closer to the center of the inner locking sleeve.

[0012] Furthermore, a pressing contact convex ring is provided on one side of the pressing block facing the center of the inner locking sleeve.

[0013] Furthermore, the connector base is provided with a second retaining spring groove, the outer locking sleeve is provided with a first retaining spring groove, one end of the connector base is inserted into the inner side of the outer locking sleeve, the second retaining spring groove is located at a corresponding position inside the first retaining spring groove, the width of the second retaining spring groove is greater than that of the first retaining spring groove, and the first retaining spring groove is embedded with a retaining spring.

[0014] Furthermore, the joint base is provided with an external thread section, the external locking sleeve is provided with an internal thread section, and the external thread section is connected to the internal thread section.

[0015] Furthermore, a second sealing ring is provided on the outer sleeve of one end of the joint base away from the outer locking sleeve.

[0016] Furthermore, a first sealing ring is sleeved on the inner side of the outer locking sleeve.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. An inner locking sleeve is provided, and the pipe is inserted into the inner locking sleeve. The extrusion block of the inner locking sleeve is squeezed and moved toward the middle to clamp the pipe, which can not only clamp the pipe quickly but also ensure the stability of the clamping.

[0019] 2. A second retaining spring groove and a first retaining spring groove are provided, a retaining spring is embedded in the first retaining spring groove, and the width of the second retaining spring groove is greater than that of the first retaining spring groove. Therefore, when the connector base and the outer locking sleeve are loosened, the connector base and the outer locking sleeve can move away from each other. At this time, the retaining spring moves in the second retaining spring groove, which enables the connector base and the outer locking sleeve to move relative to each other while preventing the two from being completely disengaged. Therefore, the entire quick safety connector remains connected together and will not fall apart into several separate parts, thereby avoiding the loss of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the utility model and, together with the embodiments of the utility model, to explain the utility model, but do not constitute a limitation of the utility model. In the accompanying drawings:

[0021] Figure 1 This is an overall schematic diagram of a quick safety connector according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of an explosion of a quick safety connector according to an embodiment of the present utility model;

[0023] Figure 3 This is a cross-sectional view of an outer locking sleeve according to an embodiment of the present utility model;

[0024] Figure 4 This is a cross-sectional view of an inner locking sleeve according to an embodiment of the present utility model;

[0025] Figure 5 This is a cross-sectional view of the connector base of an embodiment of the present utility model;

[0026] Figure 6 It is a cross-sectional view of a quick safety connector according to an embodiment of the present utility model.

[0027] In the figure: 1. External locking sleeve; 101. First inclined surface; 102. First retaining ring groove; 103. Internal thread section; 2. Internal locking sleeve; 201. Extrusion block; 2011. Extrusion contact convex ring; 2012. Second inclined surface; 2013. Third inclined surface; 202. Extrusion gap; 3. Connector base; 301. Second retaining ring groove; 302. Fourth inclined surface; 303. External thread section; 4. First sealing ring; 5. Second sealing ring. DETAILED DESCRIPTION

[0028] The preferred embodiments of the utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model and are not used to limit the utility model.

[0029] like Figures 1 to 6 As shown, a quick safety joint includes an external locking sleeve 1 and a joint base 3, the joint base 3 is provided with an external thread section 303, the external locking sleeve 1 is provided with an internal thread section 103, and the external thread section 303 is connected to the internal thread section 103. An inner locking sleeve 2 is provided between the outer locking sleeve 1 and the joint base 3. The inner locking sleeve 2 includes extrusion blocks 201 distributed in an annular shape, and an extrusion gap 202 is formed between every two extrusion blocks 201. The outer locking sleeve 1 is connected to the joint base 3 by a threaded connection. When the outer locking sleeve 1 and the joint base 3 rotate toward each other, the inner parts of the outer locking sleeve 1 and the joint base 3 are squeezed onto the extrusion blocks 201, thereby causing the extrusion blocks 201 to move toward the middle. When the outer locking sleeve 1 and the joint base 3 are unscrewed toward both ends, the pressure of the inner parts of the outer locking sleeve 1 and the joint base 3 pressing the extrusion blocks 201 becomes smaller, thereby causing the extrusion blocks 201 to spread out to the periphery. The extrusion gap 202 provides space for the extrusion blocks 201 to move when the extrusion blocks 201 move toward the middle or spread out to the periphery, so that the extrusion blocks 201 can move toward the middle or spread out to the periphery.

[0030] The inner locking sleeve 2 is inserted into the pipe, which is then inserted into the circular hole formed by the extrusion block 201. A pressing contact protrusion 2011 is provided on the side of the extrusion block 201 facing the center of the inner locking sleeve 2. The pressing contact protrusion 2011 contacts the pipe, causing the pipe to be compressed at multiple points. Furthermore, significant friction is generated between the pressing contact protrusion 2011 and the outer wall of the pipe, preventing the pipe from moving relative to the pressing contact protrusion 2011. Therefore, when the extrusion block 201 moves toward the center, it can clamp the pipe, preventing the pipe from easily disengaging from the quick safety connector, thus ensuring the safety of the pipe connection.

[0031] The extrusion block 201 is provided with a second bevel 2012 and a third bevel 2013 at both ends. The outer locking sleeve 1 is provided with a first bevel 101 within it, and the connector base 3 is provided with a fourth bevel 302 within it. When the outer locking sleeve 1 and connector base 3 rotate toward each other, the first bevel 101 gradually approaches the second bevel 2012, pushing the extrusion block 201 toward the connector base 3 until the third bevel 2013 and the fourth bevel 302 abut against each other. As the first bevel 101 and the fourth bevel 302 gradually move toward the extrusion block 201, the pressure exerted by the first bevel 101 and the fourth bevel 302 on the second bevel 2012 and the third bevel 2013 increases, gradually moving the extrusion block 201 toward the center of the inner locking sleeve 2. This allows the extrusion block 201 to be moved toward the center when the outer locking sleeve 1 and connector base 3 are tightened toward the center.

[0032] The connector base 3 is provided with a second retaining spring groove 301, and the outer locking sleeve 1 is provided with a first retaining spring groove 102. One end of the connector base 3 is inserted into the inner side of the outer locking sleeve 1. The second retaining spring groove 301 is located at a corresponding position inside the first retaining spring groove 102. The second retaining spring groove 301 is wider than the first retaining spring groove 102, and the retaining spring is embedded in the first retaining spring groove 102. Therefore, when the connector base 3 and the outer locking sleeve 1 are loosened, the connector base 3 and the outer locking sleeve 1 can move apart. At this time, the retaining spring moves in the second retaining spring groove 301, allowing the connector base 3 and the outer locking sleeve 1 to move relative to each other while preventing them from completely disengaging. This ensures that the entire quick safety connector remains connected and does not break apart into separate parts, thus preventing the loss of parts.

[0033] A second sealing ring 5 is provided on the end of the joint base 3 away from the outer locking sleeve 1. When the joint base 3 is connected to the pipe, the second sealing ring 5 seals the connection between the pipe and the joint base 3, preventing liquid or gas from leaking from the connection between the pipe and the joint base 3.

[0034] A first sealing ring 4 is sleeved on the inner side of the outer locking sleeve 1, and one end of the pipe inserted into the inner locking sleeve 2 presses against the first sealing ring 4. Therefore, the first sealing ring 4 can form a sealed state at the internal contact point between the pipe and the quick safety connector to prevent leakage of liquid or gas at this point.

[0035] The quick safety joint of the utility model connects the outer locking sleeve 1 and the joint base 3 by threading, and clamps the pipe by the inner locking sleeve 2. When in use, it is only necessary to insert the pipe into the inner locking sleeve 2 from one end of the outer locking sleeve 1, and then tighten the outer locking sleeve 1 and the joint base 3. The operation is simple and fast, and the use safety is high.

[0036] Finally, it should be noted that the above are only preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A quick safety connector, characterized in that: It comprises an outer locking sleeve (1) and a joint base (3), an inner locking sleeve (2) is provided between the outer locking sleeve (1) and the joint base (3), the inner locking sleeve (2) comprises extrusion blocks (201) distributed in an annular shape, and an extrusion gap (202) is formed between every two extrusion blocks (201); The outer locking sleeve (1) is connected to the joint base (3) by a threaded connection. When the outer locking sleeve (1) and the joint base (3) rotate toward each other, the inner parts of the outer locking sleeve (1) and the joint base (3) squeeze the extrusion block (201), thereby causing the extrusion block (201) to move toward the middle. When the outer locking sleeve (1) and the joint base (3) are unscrewed toward both ends, the pressure exerted by the inner parts of the outer locking sleeve (1) and the joint base (3) on the extrusion block (201) decreases, thereby causing the extrusion block (201) to spread out in all directions. The inner locking sleeve (2) is plugged into a pipe, and the pipe is plugged into a circular hole surrounded by the extrusion block (201).

2. The quick safety connector according to claim 1, characterized in that: The extrusion block (201) is provided with a second inclined surface (2012) and a third inclined surface (2013) at both ends, the outer locking sleeve (1) is provided with a first inclined surface (101) inside, and the joint base (3) is provided with a fourth inclined surface (302) inside.

3. The quick safety connector according to claim 2, characterized in that: When the outer locking sleeve (1) and the joint base (3) rotate toward each other, the first inclined surface (101) gradually approaches the second inclined surface (2012) and pushes the extrusion block (201) toward the joint base (3) until the third inclined surface (2013) and the fourth inclined surface (302) are in contact with each other. As the first inclined surface (101) and the fourth inclined surface (302) gradually move closer to the extrusion block (201), the pressure of the first inclined surface (101) and the fourth inclined surface (302) on the second inclined surface (2012) and the third inclined surface (2013) increases, and the extrusion block (201) gradually moves closer to the center of the inner locking sleeve (2).

4. The quick safety connector according to claim 3, characterized in that: A pressing contact convex ring (2011) is provided on one side of the pressing block (201) facing the center of the inner locking sleeve (2).

5. The quick safety connector according to any one of claims 1 to 4, characterized in that: The connector base (3) is provided with a second retaining spring groove (301), and the outer locking sleeve (1) is provided with a first retaining spring groove (102). One end of the connector base (3) is plugged into the inner side of the outer locking sleeve (1), and the second retaining spring groove (301) is located at a corresponding position inside the first retaining spring groove (102). The width of the second retaining spring groove (301) is greater than that of the first retaining spring groove (102), and the first retaining spring groove (102) is embedded with a retaining spring.

6. The quick safety connector according to claim 5, characterized in that: The joint base (3) is provided with an external thread section (303), the external locking sleeve (1) is provided with an internal thread section (103), and the external thread section (303) is connected to the internal thread section (103).

7. The quick safety connector according to claim 6, characterized in that: A second sealing ring (5) is provided on the outer sleeve of the end of the joint base (3) away from the outer locking sleeve (1).

8. The quick safety connector according to claim 7, characterized in that: A first sealing ring (4) is sleeved on the inner side of the outer locking sleeve (1).

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