Novel pneumatic straight-through quick-insertion structure

Abstract

The utility model provides a novel pneumatic straight-through quick-insertion structure, and belongs to the technical field of quick-insertion structures. The quick insertion structure comprises an outer pipe and a stop block. A first cavity and a second cavity are formed in the outer pipe, and the first cavity communicates with the second cavity; the stop block is arranged in the outer pipe and used for limiting the stroke of the external connecting pipe, so that the external connecting pipe connected with the first cavity is located in the first cavity, and the external connecting pipe connected with the second cavity is located in the second cavity; the first cavity is provided with a first locking assembly, and the first locking assembly is used for locking an external connecting pipe connected with the first cavity; the second cavity is provided with a second locking assembly, and the second locking assembly is used for locking an external connecting pipe connected with the second cavity. The quick insertion structure has the effects of specifically improving the connecting efficiency of the air source and the pneumatic tool and the use safety.

Description

Technical Field

[0001] This disclosure relates to the field of quick-connect structure technology, and more specifically, to a novel pneumatic straight-through quick-connect structure. Background Technology

[0002] In some machining processes, it is often necessary to connect pneumatic tools and an air source to allow compressed air from the air source to power the pneumatic tools. In related technologies, connecting the pneumatic tool to the air source typically involves connecting the external connecting pipe of the air source to the connecting pipe of the pneumatic tool using a flange, and then fixing the flange with bolts. Specifically, one part of the flange is fitted and fixed to the external connecting pipe of the air source, and the other part is fitted and fixed to the connecting pipe of the pneumatic tool. Then, the two parts of the flange are fixed together with bolts to achieve the connection between the pneumatic tool and the air source. However, this method involves many steps, reducing the efficiency of installing the pneumatic tool and air source. Alternatively, in some related technologies, for equipment where the pneumatic tool and air source are relatively fixed, the external connecting pipe of the air source can be connected to the connecting pipe of the pneumatic tool by welding. However, this connection method has limitations in flammable and explosive areas, and the connection cost increases significantly.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a novel pneumatic straight-through quick-connect structure to improve the safety and efficiency of installing pneumatic tools and air sources.

[0005] According to one aspect of this disclosure, a novel pneumatic quick-connect structure is provided, the quick-connect structure comprising an outer tube and a blocking block;

[0006] The outer tube has a first chamber and a second chamber, and the first chamber and the second chamber are connected.

[0007] The blocking block is disposed inside the outer tube to limit the travel of the external connecting tube, so that the external connecting tube connected to the first chamber is located inside the first chamber, and the external connecting tube connected to the second chamber is located inside the second chamber.

[0008] The first chamber is provided with a first locking assembly, wherein the first locking assembly is used to lock the external connecting pipe connected to the first chamber; the second chamber is provided with a second locking assembly, wherein the second locking assembly is used to lock the external connecting pipe connected to the second chamber.

[0009] According to one embodiment of the present disclosure, the blocking block has a first recess; the outer tube has a first protrusion; and the first protrusion is threadedly connected to the first recess.

[0010] According to one embodiment of the present disclosure, the first locking assembly includes a positioning tube, an annular spring, a fixing member, and a driving member;

[0011] The positioning tube is coaxially fixedly disposed within the first cavity;

[0012] The annular spring is mounted on one end of the positioning tube near the blocking block via the fixing member, and the fixing member can fix the annular spring.

[0013] The driving component is disposed in the cavity of the positioning tube and is used to drive the annular spring to move so that the annular spring moves closer to or further away from the external connecting tube.

[0014] Furthermore, the first locking component and the second locking component have the same structure.

[0015] According to one embodiment of this disclosure, the driving component includes a driving inner tube;

[0016] The driving inner tube is slidably connected to the positioning tube, and the positioning tube has a first locking groove and a second locking groove.

[0017] The drive inner tube has a snap-fit ​​part;

[0018] The quick-connect structure has a locked state and an unlocked state;

[0019] In the locked state, the driving inner tube drives the annular spring to move closer to the blocking block, the snap-fit ​​part snaps into the first snap-fit ​​groove, and the annular spring abuts against the external connecting tube.

[0020] In the unlocked state, the inner drive tube drives the annular spring to move closer to the blocking block, the snap-fit ​​part snaps into the second snap-fit ​​groove, and the annular spring has a gap with the external connecting tube.

[0021] According to one embodiment of this disclosure, the fastener includes a retaining ring;

[0022] The retaining ring is located on the side of the annular spring piece near the blocking block.

[0023] According to one embodiment of the present disclosure, the first locking component further includes a sealing ring;

[0024] The sealing ring is located between the retaining ring and the blocking block.

[0025] According to one embodiment of this disclosure, the outer tube has an internal mounting groove;

[0026] The sealing ring is disposed in the mounting groove and is interference-fitted with the side wall of the mounting groove.

[0027] According to one embodiment of this disclosure, the positioning tube has a third snap-fit ​​groove;

[0028] The outer tube has a second protrusion that can engage with the side wall of the third snap-fit ​​groove.

[0029] According to one embodiment of this disclosure, the first chamber is larger than the second chamber.

[0030] According to one embodiment of this disclosure, the blocking block corresponding to the second chamber has a second recess on the side near the inner wall of the outer tube;

[0031] The outer tube has a third recess inside that corresponds to the second recess.

[0032] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0034] Figure 1 This is a schematic diagram of the quick-connect structure in the first embodiment of this disclosure.

[0035] Figure 2 This is a schematic diagram of the outer tube in the first embodiment of this disclosure.

[0036] Figure 3 This is a schematic diagram of the structure of the outer tube and the blocking block in the first embodiment of this disclosure.

[0037] Figure 4 This is a schematic diagram of the structure of the blocking block in the first embodiment of this disclosure.

[0038] Figure 5 This is a schematic diagram of the quick-connect structure in the second embodiment of this disclosure.

[0039] Figure 6 This is a schematic diagram of the outer tube in the first embodiment of this disclosure.

[0040] Figure 7 This is a schematic diagram of the structure of the outer tube and the blocking block in the second embodiment of this disclosure.

[0041] Figure 8 This is a schematic diagram of the structure of the blocking block in the second embodiment of this disclosure.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Outer tube; 11. First chamber; 12. Second chamber; 13. First protrusion; 14. Mounting groove; 15. Second protrusion; 16. Third recess; 2. Blocking block; 21. First recess; 22. Second recess; 3. First locking assembly; 31. Positioning tube; 311. First snap-fit ​​groove; 312. Second snap-fit ​​groove; 313. Third snap-fit ​​groove; 32. Annular spring; 33. Fixing member; 331. Fixing ring; 34. Driving member; 341. Driving inner tube; 3411. Snap-fit ​​part; 35. Sealing ring; 4. Second locking assembly. Detailed Implementation

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0045] In related technologies, connecting pneumatic tools to an air source typically involves connecting the external connecting pipe of the air source to the connecting pipe of the pneumatic tool using a flange, and then fixing the flange with bolts. Specifically, one part of the flange is fitted and fixed to the external connecting pipe of the air source, and the other part is fitted and fixed to the connecting pipe of the pneumatic tool. The two parts of the flange are then fixed with bolts to achieve the connection between the pneumatic tool and the air source. However, this method involves many steps, reducing the efficiency of installing the pneumatic tool and air source. Alternatively, in some related technologies, for equipment where the pneumatic tool and air source are relatively fixed, the external connecting pipe of the air source can be connected to the connecting pipe of the pneumatic tool by welding. However, this connection method has limitations in flammable and explosive areas, and the connection cost increases significantly.

[0046] Based on this, see Figure 1 , Figure 5 This disclosure provides a novel pneumatic straight-through quick-connect structure, which includes an outer tube 1 and a blocking block 2. The outer tube 1 has a first chamber 11 and a second chamber 12, which are connected in communication. The blocking block 2 is disposed inside the outer tube 1 to limit the stroke of the external connecting tube, so that the external connecting tube connected to the first chamber 11 is located inside the first chamber 11, and the external connecting tube connected to the second chamber 12 is located inside the second chamber 12. The first chamber 11 is provided with a first locking component 3, which is used to lock the external connecting tube connected to the first chamber 11. The first chamber 11 is provided with a second locking component 4, which is used to lock the external connecting tube connected to the second chamber 12.

[0047] In this embodiment, when it is necessary to install an air source and a pneumatic tool, the external connecting pipe of the air source is first inserted into the first chamber 11, and the external connecting pipe of the air source is fixed in the first chamber 11 by the first locking assembly 3. Then, the external connecting pipe of the pneumatic tool is inserted into the second chamber 12, and the external connecting pipe of the pneumatic tool is fixed in the second chamber 12 by the second locking assembly 4, thereby realizing the installation of the air source and the pneumatic tool. In this embodiment, the first locking assembly 3 can quickly fix the external connecting pipe of the air source in the first chamber 11; the second locking assembly 4 can quickly fix the external connecting pipe of the pneumatic tool in the second chamber 12, thereby quickly realizing the connection and fixation of the air source and the pneumatic tool, improving the connection efficiency between the air source and the pneumatic tool.

[0048] It should be noted that this application does not specifically limit the objects connected to the first chamber 11 and the second chamber 12. For example, the external connecting pipe of the air source can extend into the second chamber 12 and be fixed in the second chamber 12 by the second locking component 4; the external connecting pipe of the pneumatic tool can extend into the first chamber 11 and be fixed in the first chamber 11 by the second locking component 4.

[0049] In this embodiment, the blocking block 2 can block the external connecting pipe in the first chamber 11 to prevent it from entering the second chamber 12; and it can also block the external connecting pipe in the second chamber 12 to prevent it from entering the first chamber 11. Simultaneously, the blocking block 2 can also fix the connecting pipe in the first chamber 11 or the connecting pipe in the second chamber 12 to improve the tightness of the connection between the air source and the pneumatic tool.

[0050] In some embodiments of this disclosure, see Figure 4 , Figure 8 The blocking block 2 has a first recess 21; the outer tube 1 has a first protrusion 13; the first protrusion 13 is threadedly connected to the first recess 21. This arrangement can improve the fixing effect between the blocking block 2 and the outer tube 1, thereby improving the fixing effect on the external connecting tube.

[0051] As an example, see Figure 2 , Figure 3 , Figure 6 , Figure 7 The outer tube 1 can be formed by directly cutting thin-walled tubing. Furthermore, the blocking block 2 is placed inside the outer tube 1 and fixed to the outer tube 1 by spinning, so that part of the blocking block 2 is located in the first chamber 11 and part of the blocking block 2 is located in the second chamber 12.

[0052] In some embodiments of this disclosure, the first locking assembly 3 includes a positioning tube 31, an annular spring 32, a fixing member 33, and a driving member 34; the positioning tube 31 is coaxially fixedly installed in the first chamber 11; the annular spring 32 is installed at one end of the positioning tube 31 near the blocking block 2 by the fixing member 33, and the fixing member 33 can fix the annular spring 32; the driving member 34 is installed in the cavity of the positioning tube 31 and is used to drive the annular spring 32 to move so that the annular spring 32 moves closer to or away from the external connecting tube.

[0053] In some embodiments of this disclosure, the first locking component 3 and the second locking component 4 have the same structure.

[0054] In some embodiments of this disclosure, the first locking assembly 3 includes a positioning tube 31, an annular spring 32, a fixing member 33, and a driving member 34; the positioning tube 31 is coaxially fixedly installed in the first chamber 11; the annular spring 32 is installed at one end of the positioning tube 31 near the blocking block 2 by the fixing member 33, and the fixing member 33 can fix the annular spring 32; the driving member 34 is installed in the cavity of the positioning tube 31 and is used to drive the annular spring 32 to move so that the annular spring 32 moves closer to or away from the external connecting tube; the first locking assembly 3 has the same structure as the second locking assembly 4.

[0055] Taking the external connecting pipe fixed in the first chamber 11 as an example (in this embodiment, the first locking component 3 and the second locking component 4 are the same), when it is necessary to install the external connecting pipe in the first cavity, the external connecting pipe is inserted into the first chamber 11, the driving component 34 is adjusted, the driving component 34 moves and drives the annular spring 32 to move, and the annular spring 32 is fixed under the action of the fixing component 33. At this time, the annular spring 32 is fixed with the external connecting pipe, so as to achieve the purpose of installing the external connecting pipe in the first chamber 11.

[0056] In this embodiment, the driving component 34 includes a driving inner tube 341; the driving inner tube 341 is slidably connected to the positioning tube 31, the positioning tube 31 having a first snap-fit ​​groove 311 and a second snap-fit ​​groove 312; the driving inner tube 341 has a snap-fit ​​portion 3411; wherein, the quick-connect structure has a locked state and an unlocked state; in the locked state, the driving inner tube 341 drives the annular spring piece 32 to move closer to the blocking block 2, the snap-fit ​​portion 3411 snaps into the first snap-fit ​​groove 311, and the annular spring piece 32 abuts against the external connecting tube; in the unlocked state, the driving inner tube 341 drives the annular spring piece 32 to move closer to the blocking block 2, the snap-fit ​​portion 3411 snaps into the second snap-fit ​​groove 312, and the annular spring piece 32 has a gap with the external connecting tube.

[0057] Specifically, when the external connecting tube needs to be inserted into the first chamber 11 (or the second chamber 12, taking the first chamber 11 as an example), press and drive the inner tube 341. The inner tube 341 moves within the cavity of the positioning tube 31. The movement of the inner tube 341 causes the locking part 3411 to move. The locking part 3411 drives the annular spring piece 32 to move closer to the blocking block 2. The annular spring piece 32 contacts the external connecting tube in the first chamber 11. Under the continuous action of the driving inner tube 341, the annular spring piece 32 abuts against the external connecting tube, and the locking part 3411 engages with the first locking groove 311, thereby achieving the purpose of fixing the external connecting tube in the first cavity.

[0058] Furthermore, if it is necessary to pull out the external connecting tube in the first chamber 11, continue to press and drive the inner tube 341. The inner tube 341 drives the locking part 3411 to move. At this time, the locking part 3411 moves towards the second locking groove 312. The moving ring spring 32 of the locking part 3411 moves. The ring spring 32 gradually changes from being in an inclined state when it is pressed against the external connecting tube to being in a horizontal state with the external connecting tube. At this time, one end of the ring spring 32 moves away from the external connecting tube. In this way, the external connecting tube can be pulled out in the first chamber 11 (or the second chamber 12).

[0059] In some embodiments of this disclosure, the fastener 33 includes a retaining ring 331; the retaining ring 331 is disposed on the side of the annular spring 32 near the blocking block 2. Thus, the retaining ring 331 can compress and fix the annular spring 32, thereby improving the fixing effect of the annular spring 32 on the external connecting pipe.

[0060] In some embodiments of this disclosure, the first locking assembly 3 further includes a sealing ring 35; the sealing ring 35 is disposed between the fixing ring 331 and the blocking block 2. The sealing ring 35 provides a seal between the external connecting pipe and the blocking block 2, as well as inside the outer pipe 1, thereby preventing gas leakage when the pneumatic tool is inflated by an air source.

[0061] In some embodiments of this disclosure, the outer tube 1 has an internal mounting groove 14; a sealing ring 35 is disposed within the mounting groove 14 and is interference-fitted with the side wall of the mounting groove 14. By providing the mounting groove 14 and the interference fit between the side wall of the mounting groove 14 and the sealing ring 35, the fixing effect between the sealing ring 35 and the outer tube 1 can be improved, thereby improving the sealing performance of the air source when inflating the pneumatic tool.

[0062] In some embodiments of this disclosure, the positioning tube 31 has a third engaging groove 313; the outer tube 1 has a second protrusion 15, which can engage with the side wall of the third engaging groove 313. When the positioning tube 31 is installed with the outer tube 1, the positioning tube 31 is inserted into the outer tube 1 (first chamber 11 or second chamber 12). At this time, the second protrusion 15 engages with the third engaging groove 313, thus completing the purpose of installing the positioning tube 31 into the outer tube 1.

[0063] In some embodiments of this disclosure, the first chamber 11 is larger than the second chamber 12.

[0064] It is understandable that when the first chamber 11 is connected to the air source and the second chamber 12 is connected to the pneumatic tool, setting the first chamber 11 to be larger than the second chamber 12 can increase the air pressure in the external connecting pipe connected to the pneumatic tool, thus allowing the pneumatic tool to be used in scenarios requiring high processing air pressure. Similarly, when the second chamber 12 is connected to the air source and the first chamber 11 is connected to the pneumatic tool, setting the first chamber 11 to be larger than the second chamber 12 can reduce the air pressure in the external connecting pipe connected to the pneumatic tool, thus allowing the pneumatic tool to be used in scenarios requiring lower processing air pressure.

[0065] In some embodiments of this disclosure, the blocking block 2 corresponding to the second chamber 12 has a second recess 22 on the side near the inner wall of the outer tube 1; the interior of the outer tube 1 has a third recess 16 corresponding to the second recess 22. In this way, the blocking block 2 can be fully fixed to the outer tube 1, which is different from the first chamber 11 and the second chamber 12, so as to further improve the sealing performance of the air source supplying air to the pneumatic tool.

[0066] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A new and improved pneumatic straight through quick connect structure characterized by, The quick insertion structure comprises an outer tube and a blocking block; The outer tube has a first cavity and a second cavity, and the first cavity is in communication with the second cavity; The blocking block is arranged in the outer tube to limit the stroke of the external connecting tube, so that the external connecting tube connected with the first cavity is located in the first cavity, and the external connecting tube connected with the second cavity is located in the second cavity; The first cavity is provided with a first locking assembly, wherein the first locking assembly is used for locking the external connecting tube connected with the first cavity; and the second cavity is provided with a second locking assembly, and the second locking assembly is used for locking the external connecting tube connected with the second cavity.

2. The novel aerodynamic straight through quick plug-in arrangement as claimed in claim 1, wherein, The blocking block has a first recess; the outer tube has a first protrusion; and the first protrusion is threadedly connected with the first recess.

3. The novel aerodynamic straight through quick plug-in arrangement as claimed in claim 1, wherein, The first locking assembly comprises a positioning tube, an annular elastic sheet, a fixing member and a driving member; The positioning tube is coaxially fixed in the first cavity; The annular elastic sheet is arranged at one end of the positioning tube close to the blocking block through the fixing member, and the fixing member can fix the annular elastic sheet; The driving member is arranged in the cavity of the positioning tube and is used for driving the annular elastic sheet to move, so that the annular elastic sheet is close to or away from the external connecting tube; And the first locking assembly and the second locking assembly have the same structure.

4. The novel aerodynamic straight through quick plug structure as claimed in claim 3, wherein, The driving member comprises a driving inner tube; The driving inner tube is slidingly connected in the positioning tube, and the positioning tube has a first clamping groove and a second clamping groove; The driving inner tube has a clamping portion; The quick insertion structure has a locking state and an unlocking state; In the locking state, the driving inner tube drives the annular elastic sheet to move close to the blocking block, the clamping portion is clamped in the first clamping groove, and the annular elastic sheet abuts against the external connecting tube; In the unlocking state, the driving inner tube drives the annular elastic sheet to move close to the blocking block, the clamping portion is clamped in the second clamping groove, and the annular elastic sheet has a gap with the external connecting tube.

5. The novel aerodynamic straight through quick plug structure as claimed in claim 3, wherein, The fixing member comprises a fixing ring; The fixing ring is arranged at one side of the annular elastic sheet close to the blocking block.

6. The novel aerodynamic straight through quick plug structure as claimed in claim 5, wherein, The first locking assembly further comprises a sealing ring; The sealing ring is arranged between the fixing ring and the blocking block.

7. The novel aerodynamic straight through quick-plug structure according to claim 6, characterized in that, The inner part of the outer tube has a mounting groove; The sealing ring is arranged in the mounting groove and is in interference fit with the side wall of the mounting groove.

8. The novel aerodynamic straight through quick-plug structure according to claim 3, wherein, The positioning tube has a third clamping groove; The outer tube has a second protrusion, and the second protrusion can be clamped with the side wall of the third clamping groove.

9. The novel aerodynamic straight through quick-plug structure according to claim 1, characterized in that, The first cavity is larger than the second cavity.

10. The novel aerodynamic straight through quick-plug structure according to claim 9, characterized in that, The side of the blocking block close to the inner wall of the outer tube corresponding to the second cavity has a second recess; The inner part of the outer tube has a third recess corresponding to the second recess.

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