Air pipe joint
By designing air holes and valve block systems on the air pipe joints, and controlling the opening and closing of air holes with the drive assembly and return spring, the problem that existing air pipe joints cannot achieve outward blowing or pressure relief is solved, and the function expansion and cost reduction are achieved.
Patent Information
- Application Number
- CN202421522857.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Existing air pipe fittings only have the function of connecting the airway, and cannot achieve outward blowing or pressure relief. Adding air outlets and air guns to achieve blowing function will increase cost and mechanical complexity.
A tracheal joint is designed to control the opening and closing of the vent through opening or pressure relief by opening or discharging air outward by opening or discharging air through the main body of the joint and using the valve block and sealing ring.
The tracheal fitting has the function of blowing outward or relieving pressure, simplifying design and use, reducing costs, and improving functional flexibility.
Smart Images
Figure CN222616286U_ABST
Abstract
Description
Technical field:
[0001] The utility model belongs to the technical field of airway accessories, in particular to an air pipe joint. Background technology:
[0002] As an important connecting accessory of high-pressure airway, air pipe joints are mainly used for connecting airways between pipelines and between pipelines and equipment. Among them, the air pipe joints currently on the market only have the function of connecting airways, which is relatively simple. If you want the air-using equipment to be able to blow air outward or relieve pressure, you need to configure an air gun or a pressure relief valve on the airway. In addition, in many application scenarios of air-using equipment, blowing air to the outside is not the main application purpose. Often, it is only necessary to use the airflow to clean the surrounding environment or achieve specific purposes. Therefore, adding an additional air outlet port for configuring the air gun and correspondingly adding additional air pipe mechanical energy for connection is more costly. Summary of the invention:
[0003] The utility model aims to provide an air pipe joint, which has the function of blowing air outwards or relieving pressure. By means of a valve block and a sealing ring, the air hole can be axially moved in a movable hole to effectively control blowing air outwards and stopping blowing air.
[0004] The utility model is achieved in this way:
[0005] A trachea joint comprises a joint body with an inner hole of an airway, a movable hole connected to the inner hole of the airway is formed on the joint body, a valve block is connected to the movable hole in an axial sliding manner, a sealing ring is mounted on the valve block and can be sealed with the inner wall of the movable hole, a driving component is provided on the joint body and can drive the valve block to move outward, a reset spring is provided between the valve block or the driving component and the joint body, an air hole whose inner port is connected to the movable hole is formed on the outer wall surface of the joint body, the valve block is driven by the driving component to move outward until the air hole is connected to the inner hole of the airway, and when the driving component has no driving force, the elastic force of the reset spring can push the valve block to move inward until the air hole and the inner hole of the airway are blocked by the sealing ring inside and outside.
[0006] In the above-mentioned air pipe joint, the driving assembly includes a valve stem which is movably connected to the joint body and axially arranged along the movable hole, the inner end of the valve stem is connected to the valve block, and the outer end extends out of the joint body.
[0007] In the above-mentioned air pipe joint, the movable hole is a stepped hole structure and includes a large diameter part and a small diameter part from the outside to the inside, a positioning step 1 is formed between the large diameter part and the small diameter part, the valve block and the air hole are both arranged on the large diameter part, and the inner end face of the valve block can abut against the positioning step 1, a driving through hole is opened on the outer wall surface of the joint body, the valve stem is a stepped shaft structure and includes a head that is movably fitted on the driving through hole, and a rod part with an outer diameter smaller than the head, a positioning step 2 is formed between the head and the rod part, the tail end of the rod part passes through the airway inner hole and the small diameter part and is connected to the valve block, the return spring is sleeved on the rod part and one end of it abuts against the positioning step 2, and the other end abuts against the hole wall of the airway inner hole.
[0008] In the above-mentioned trachea joint, a positioning groove is provided on the hole wall of the airway inner hole, the inner port of the small diameter portion is provided on the bottom surface of the positioning groove, and the corresponding end of the return spring abuts against the bottom surface of the positioning groove.
[0009] In the above-mentioned air pipe joint, the tail end of the rod is provided with an external thread, and the inner end surface axis of the valve block is provided with a screw hole for threading and matching with the external thread of the rod.
[0010] In the above-mentioned air pipe joint, the valve block is a frustum structure with a larger outer diameter and a smaller inner diameter, and the side wall surface of the larger diameter portion corresponds to the outer ring wall structure of the valve.
[0011] In the above-mentioned air pipe joint, an annular groove is provided on the outer wall surface of the joint body, and the outer port of the air hole is arranged on the groove wall of the annular groove in an outwardly inclined manner.
[0012] The outstanding advantages of the utility model compared with the prior art are:
[0013] The utility model has a simple structure, reasonable design and is easy to use. By opening an air hole on the joint body and using a valve block and a sealing ring to move axially in the movable hole, the air hole can be effectively controlled to blow air outwards and stop blowing air, so that the air pipe joint can have the function of blowing air outwards or relieving pressure. Description of the drawings:
[0014] Figure 1 It is an overall stereogram of the utility model;
[0015] Figure 2 It is a cross-sectional view of the utility model showing the air hole and the airway inner hole being blocked;
[0016] Figure 3 It is a cross-sectional view of the utility model showing the air hole and the airway inner hole in the communication state.
[0017] In the figure: 1. Inner hole of airway; 2. Connector body; 3. Valve block; 4. Sealing ring; 5. Return spring; 6. Air hole; 7. Valve stem; 8. Large diameter part; 9. Driving through hole; 10. Head; 11. Rod; 12. Positioning groove; 13. Annular groove. Specific implementation method:
[0018] The present invention is further described below with reference to specific embodiments. Figure 1 —3:
[0019] A trachea joint, comprising a joint body 2 with an airway inner hole 1, a movable hole connected to the airway inner hole 1 is provided on the joint body 2, a valve block 3 is connected to the movable hole in an axial sliding manner, a sealing ring 4 that can seal with the inner wall of the movable hole is sleeved on the valve block 3, a driving component that can drive the valve block 3 to move outward is provided on the joint body 2, a reset spring 5 is provided between the valve block 3 or the driving component and the joint body 2, an air hole 6 whose inner port is connected to the movable hole is provided on the outer wall surface of the joint body 2, the valve block 3 is driven by the driving component to move outward until the air hole 6 is connected to the airway inner hole 1, when the driving component has no driving force, the elastic force of the reset spring 5 can push the valve block 3 to move inward until the sealing ring 4 blocks the air hole 6 and the airway inner hole 1 inside and outside.
[0020] The utility model has a simple structure, reasonable design and is easy to use. By opening an air hole 6 on the joint body 2 and using the valve block 3 and the sealing ring 4 to move axially in the movable hole, the air hole 6 can be effectively controlled to blow air outwards and stop blowing air, so that the trachea joint can have the function of blowing air outwards or relieving pressure.
[0021] The driving component may be a common electromagnetic valve, and the valve block 3 and the sealing ring 4 can be axially moved in the movable hole by artificially controlling the opening and closing of the electromagnetic valve. In this embodiment, in order to effectively control the product cost, the driving component includes a valve stem 7 that is movably connected to the joint body 2 and arranged axially along the movable hole, and the inner end of the valve stem 7 is connected to the valve block 3 and the outer end extends out of the joint body 2. That is, the axial movement of the valve block 3 and the sealing ring 4 in the movable hole is achieved by artificially pressing the valve stem 7 inward or pulling it outward.
[0022] Furthermore, in the present embodiment, the specific matching structure of the valve stem 7 and the valve block 3 on the joint body 2 is as follows: the movable hole is a stepped hole structure and includes a large diameter portion 8 and a small diameter portion in sequence from the outside to the inside, a positioning step 1 is formed between the large diameter portion 8 and the small diameter portion, the valve block 3 and the air hole 6 are both arranged on the large diameter portion 8, and the inner end surface of the valve block 3 can abut against the positioning step 1, a driving through hole 9 is provided on the outer wall surface of the joint body 2, the valve stem 7 is a stepped shaft structure and includes a head 10 that is movably matched on the driving through hole 9, and a rod 11 whose outer diameter is smaller than the head 10, a positioning step 2 is formed between the head 10 and the rod 11, the tail end of the rod 11 passes through the airway inner hole 1 and the small diameter portion and is connected to the valve block 3, the reset spring 5 is sleeved on the rod 11 and one end thereof abuts against the positioning step 2 and the other end abuts against the hole wall of the airway inner hole 1. That is, in this embodiment, the head 10 of the valve stem 7 is manually pressed inward, so that the stem 11 of the valve stem 7 can drive the valve block 3 and the sealing ring 4 to move outward, so as to achieve the connection between the air hole 6 and the airway inner hole 1, and when the valve stem 7 is not subjected to external force, the elastic force of the return spring 5 can drive the valve block 3 and the sealing ring 4 to move inward through the valve stem 7, so that the sealing ring 4 can block the air hole 6 from the airway inner hole 1 inside and outside. At the same time, a sealing ring is provided between the head 10 of the valve stem 7 and the driving through hole 9 to ensure the sealing between the valve stem 7 and the driving through hole 9.
[0023] Furthermore, in order to enable the return spring 5 to be stably connected between the head 10 of the valve stem 7 and the airway inner hole 1, a positioning groove 12 is opened on the hole wall of the airway inner hole 1, and the inner port of the small diameter portion is opened on the bottom surface of the positioning groove 12, and the corresponding end of the return spring 5 rests on the bottom surface of the positioning groove 12.
[0024] In addition, the rod portion 11 of the valve stem 7 can be fixedly connected to the valve block 3 by an axial screw. In the present embodiment, an external thread is provided at the tail end of the rod portion 11, and a screw hole for threading the external thread of the rod portion 11 is provided on the axis of the inner end surface of the valve block 3.
[0025] At the same time, in order to ensure that the sealing ring 4 can block the air hole 6 and the airway inner hole 1 inside and outside, the valve block 3 is a frustum structure with a larger outer diameter and a smaller inner diameter, and the side wall surface of the large diameter part 8 corresponds to the outer ring wall structure of the valve.
[0026] In addition, in order to facilitate the air hole 6 to blow air outward, an annular groove 13 is provided on the outer wall surface of the joint body 2, and the outer end of the air hole 6 is arranged outwardly on the groove wall of the annular groove 13. Moreover, in this embodiment, the annular groove 13 has a V-shaped structure, and the outer end of the air hole 6 is provided on the V-shaped inclined surface of the annular groove 13.
[0027] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A tracheal joint, comprising a joint body (2) having an airway inner hole (1), characterized in that: The joint body (2) is provided with a movable hole connected to the airway inner hole (1), a valve block (3) is slidably connected to the movable hole along its axial direction, a sealing ring (4) is mounted on the valve block (3) and can be sealed with the inner wall of the movable hole, a driving component is provided on the joint body (2) and can drive the valve block (3) to move outward, a return spring (5) is provided between the valve block (3) or the driving component and the joint body (2), an air hole (6) whose inner port is connected to the movable hole is provided on the outer wall surface of the joint body (2), the valve block (3) is driven by the driving component to move outward until the air hole (6) is connected to the airway inner hole (1), when the driving component has no driving force, the elastic force of the return spring (5) can push the valve block (3) to move inward until the sealing ring (4) blocks the air hole (6) and the airway inner hole (1) inside and outside.
2. A trachea joint according to claim 1, characterized in that: The driving assembly comprises a valve stem (7) which penetrates and is movably connected to the joint body (2) and is arranged axially along the movable hole. One end of the valve stem (7) is connected to the valve block (3) and the other end extends out of the joint body (2).
3. A trachea joint according to claim 2, characterized in that: The movable hole is a stepped hole structure and includes a large diameter portion (8) and a small diameter portion in sequence from the outside to the inside, a positioning step 1 is formed between the large diameter portion (8) and the small diameter portion, the valve block (3) and the air hole (6) are both arranged on the large diameter portion (8), and the inner end surface of the valve block (3) can abut against the positioning step 1, a driving through hole (9) is opened on the outer wall surface of the joint body (2), the valve stem (7) is a stepped shaft structure and includes a head (10) movably fitted on the driving through hole (9), and a rod (11) with an outer diameter smaller than the head (10), a positioning step 2 is formed between the head (10) and the rod (11), the tail end of the rod (11) passes through the airway inner hole (1) and the small diameter portion and is connected to the valve block (3), the return spring (5) is sleeved on the rod (11) and one end of the return spring abuts against the positioning step 2 and the other end abuts against the hole wall of the airway inner hole (1).
4. A trachea joint according to claim 3, characterized in that: A positioning groove (12) is provided on the hole wall of the airway inner hole (1), the inner port of the small diameter portion is provided on the bottom surface of the positioning groove (12), and the corresponding end of the return spring (5) abuts against the bottom surface of the positioning groove (12).
5. The trachea joint according to claim 3, characterized in that: The tail end of the rod (11) is provided with an external thread, and the inner end surface axis of the valve block (3) is provided with a screw hole for threading with the external thread of the rod (11).
6. The trachea joint according to claim 3, characterized in that: The valve block (3) is a frustum structure with a larger outer diameter and a smaller inner diameter, and the side wall surface of the large diameter portion (8) corresponds to the outer ring wall structure of the valve.
7. The trachea connector according to claim 1, characterized in that: An annular groove (13) is provided on the outer wall surface of the joint body (2), and the outer end of the air hole (6) is arranged on the groove wall of the annular groove (13) in an outwardly inclined manner.