Buffer screw and multi-cavity filler neck adopting same
By setting axial input holes, radial diversion holes, radial return holes, and oblique outflow holes inside the buffer screw, the direction of fluid flow is changed, the impact of pressure input is reduced, the problem of damage to the core in pressure signal measurement is solved, and the buffering effect of fluid input is achieved.
Patent Information
- Application Number
- CN202423279967.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In aviation, hydraulic, and gas systems, pressure input during pressure signal measurement can easily generate significant impacts, leading to damage to the core and product lifespan.
Design a buffer screw with an internal structure including an axial input hole, a radial diversion hole, a radial return hole, and an oblique outflow hole. By changing the direction of fluid flow, a top buffer is set to mitigate impact.
Significantly reduces the damage to the pressure core caused by fluid input, protecting the core and product lifespan.
Smart Images
Figure CN223739835U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sensor technical field, concretely is a kind of buffer screw and the multi-cavity pipe connector mouth using it. BACKGROUND
[0002] More pressure signals need to be measured in current aviation, hydraulic and gas systems, but in actual measurement process, larger impact is easy to generate when pressure is input, which causes damage to pressure core body, seriously affecting the life of core body and product. Therefore, it is particularly important to design a device to reduce the impact of pressure input. UTILITY MODEL CONTENT
[0003] The utility model aims at the problems existing in prior art, provide a kind of buffer screw and the multi-cavity pipe connector mouth using it.
[0004] The utility model aims at the problems existing in prior art, provide a kind of buffer screw and the multi-cavity pipe connector mouth using it.
[0005] A kind of buffer screw, characterized in that: the buffer screw is sequentially arranged with axial input hole, radial shunt hole, radial backflow hole, oblique outflow hole, the inlet of axial input hole is located at the front end of the cylinder of the buffer screw, the outlet of axial input hole is communicated with radial shunt hole, the upper of radial shunt hole is parallelly arranged with radial backflow hole, and the middle part of radial backflow hole is communicated with the inlet of oblique outflow hole, and the outlet of oblique outflow hole is located at the top of the nut of the buffer screw.
[0006] The axial input hole is located at the lower part of the cylinder of the buffer screw, the radial shunt hole and the radial backflow hole are located at the upper part of the cylinder of the buffer screw, the lower part of oblique outflow hole extends into the upper part of the cylinder of the buffer screw, and the middle upper part of oblique outflow hole is located in the nut of the buffer screw.
[0007] The radial shunt hole is provided with at least one outlet, and the radial backflow hole is provided with at least one inlet.
[0008] At least one oblique outflow hole is arranged in the buffer screw.
[0009] The inclination angle of the oblique outflow hole is 30°-55°.
[0010] The top of the nut of the buffer screw is provided with a top buffer zone, and the top buffer zone is communicated with the outlet of oblique outflow hole.
[0011] The top buffer zone is an internal hexagonal structure.
[0012] The lower part of the cylinder of the buffer screw is provided with a screw external thread.
[0013] A multi-cavity connector nozzle with a buffer screw, characterized in that: a core mounting hole, a fluid buffer hole, a screw mounting hole are arranged in the inner cavity of the connector nozzle, the screw mounting hole is the pressure inlet hole of the connector nozzle, the buffer screw is inserted into the screw mounting hole through the core mounting hole, and the outer screw thread of the buffer screw column lower part is in threaded connection with the inner screw thread of the screw mounting hole; the radial diversion hole and the radial return hole of the buffer screw correspond to the fluid buffer hole area of the connector nozzle.
[0014] A gland mounting hole is arranged between the core mounting hole and the fluid buffer hole, a gland is pressed on the buffer screw nut and is in threaded connection with the gland mounting hole, and a through hole is arranged on the gland and can be in communication with the oblique outflow hole.
[0015] Compared with the prior art, the utility model has the following advantages:
[0016] The buffer screw of the utility model sets an obstacle on the fluid passing path, changes the fluid flow direction multiple times, can significantly reduce the impact caused by fluid input, and reduces the damage of pressure input to the pressure core. BRIEF DESCRIPTION OF DRAWINGS
[0017] FIG. 1 is a structural schematic diagram of the buffer screw provided by the utility model; Figure 1 FIG. 2 is a sectional structure schematic diagram of the buffer screw provided by the utility model;
[0018] FIG. 3 is an appearance structure schematic diagram of the multi-cavity connector nozzle provided by the utility model; Figure 2 FIG. 4 is a sectional structure schematic diagram of the multi-cavity connector nozzle provided by the utility model.
[0019] FIG. 5 is a structural schematic diagram of the buffer screw provided by the utility model; Figure 3 FIG. 6 is a sectional structure schematic diagram of the buffer screw provided by the utility model;
[0020] FIG. 7 is an appearance structure schematic diagram of the multi-cavity connector nozzle provided by the utility model; Figure 4 FIG. 8 is a sectional structure schematic diagram of the multi-cavity connector nozzle provided by the utility model.
[0021] Wherein: 1-buffer screw; 11-axial input hole; 12-radial diversion hole; 13-radial return hole; 14-oblique outflow hole; 15-top buffer zone; 16-screw outer thread; 2-gland; 21-through hole; 3-connector nozzle; 31-core mounting hole; 32-gland mounting hole; 33-fluid buffer hole; 34-screw mounting hole. DETAILED DESCRIPTION
[0022] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example implementations to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and thus a detailed description of them will not be repeated.
[0023] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.
[0024] like Figures 1-2 As shown: A buffer screw 1 has an axial input hole 11, a radial diversion hole 12, a radial return hole 13, and an oblique outflow hole 14 arranged sequentially inside the buffer screw 1. The inlet of the axial input hole 11 is located at the front end of the column of the buffer screw 1, and the outlet of the axial input hole 11 is connected to the radial diversion hole 12. The radial return hole 13 is arranged parallel above the radial diversion hole 12, and the middle part of the radial return hole 13 is connected to the inlet of the oblique outflow hole 14. The outlet of the oblique outflow hole 14 is located at the top of the nut of the buffer screw 1. A top buffer zone 15 is opened at the top of the nut of the buffer screw 1, and the top buffer zone 15 is connected to the outlet of the oblique outflow hole 14. The top buffer zone 15 has an internal hexagonal structure. In addition, an external screw thread 16 for fixed connection is provided at the lower part of the column of the buffer screw 1.
[0025] In specific configuration, the axial input hole 11 is located at the lower part of the cylinder of the buffer screw 1, the radial diversion hole 12 and the radial return hole 13 are located at the upper part of the cylinder of the buffer screw 1, and the lower part of the oblique outflow hole 14 extends into the upper part of the cylinder of the buffer screw 1, with the upper middle part of the oblique outflow hole 14 located inside the nut of the buffer screw 1. The radial diversion hole 12 has at least one outlet and the radial return hole 13 has at least one inlet. The number of outlets or inlets can be one, two, three, or four. At least one oblique outflow hole 14 is arranged inside the buffer screw 1, and the inclination angle of the oblique outflow hole 14 is 30° to 55°. Currently, the radial diversion hole 12 preferably has two outlets and the radial return hole 13 preferably has two outlets.
[0026] like Figures 1-2 As shown: A multi-cavity connector 3 employing a buffer screw is provided in the inner cavity of the connector 3, which has a core mounting hole 31, a fluid buffer hole 33, and a screw mounting hole 34. The screw mounting hole 34 serves as the inlet hole for the connector 3. The buffer screw 1 is inserted downward into the screw mounting hole 34 through the core mounting hole 31, and the external thread 16 of the screw at the lower part of the buffer screw 1 is threadedly connected to the internal thread of the screw mounting hole 34. The radial diversion hole 12 and the radial return hole 13 of the buffer screw 1 correspond to the fluid buffer hole 33 area of the connector 3. To improve the installation stability of the buffer screw 1, a cap mounting hole 32 is provided between the core mounting hole 31 and the fluid buffer hole 33. The cap 2, which is fitted onto the nut of the buffer screw 1, is threadedly connected to the cap mounting hole 32. The cap 2 has a through hole 21 that can communicate with the oblique outflow hole 14. Example
[0027] like Figures 1-2 As shown: A buffer screw 1 has an axial input hole 11, a radial diversion hole 12, a radial return hole 13, and an oblique outflow hole 14 arranged sequentially inside the buffer screw 1. A top buffer zone 15 is opened at the top of the nut of the buffer screw 1. The inlet of the axial input hole 11 is located at the front end of the column of the buffer screw 1, and the outlet of the axial input hole 11 is connected to the radial diversion hole 12. The radial return hole 13 is arranged parallel above the radial diversion hole 12, and the middle part of the radial return hole 13 is connected to the inlet of the oblique outflow hole 14. The outlet of the oblique outflow hole 14 is connected to the top buffer zone 15. The top buffer zone 15 is also a hexagonal internal structure for connection, and an external screw thread 16 for fixed connection is provided at the lower part of the column of the buffer screw 1.
[0028] In terms of specific configuration, the axial input hole 11 is located at the lower part of the column of the buffer screw 1, the radial diversion hole 12 with two outlets and the radial return hole 13 with two inlets are located at the upper part of the column of the buffer screw 1, and the lower part of the oblique outflow hole 14 extends into the upper part of the column of the buffer screw 1 and the middle and upper part of the oblique outflow hole 14 is located inside the nut of the buffer screw 1.
[0029] like Figures 1-4 As shown: A multi-cavity connector with a buffer screw includes a buffer screw 1, a gland 2, and a connector 3. Four stepped holes are opened inside the connector 3, which are, from top to bottom, a core mounting hole 31, a gland mounting hole 32, a fluid buffer hole 33, and a screw mounting hole 34. The gland mounting hole 32 is provided with a tool relief groove. The upper part of the connector 3 is hexagonal for easy wrench operation. The lower part of the connector 3 is provided with a mechanical interface thread and a tool relief groove for installation. The buffer screw 1 is inserted downward into the screw mounting hole 34 through the core mounting hole 31, and the external screw thread 16 at the lower part of the buffer screw 1 is threadedly connected to the internal thread of the screw mounting hole 34. The radial diversion hole 12 and the radial return hole 13 of the buffer screw 1 correspond to the fluid buffer hole 33 area of the connector 3. The nut of the buffer screw 1 is located in the gland mounting hole 32. The bottom of the nut of the buffer screw 1 is in close contact with the stepped surface of the gland mounting hole 32 of the connector 3. The buffer screw 1 has an axial input hole 11, a radial diversion hole 12, a radial return hole 13, and an oblique outflow hole 14 inside as fluid guide holes. The upper end of the nut is a top buffer 15 with an internal hexagonal structure, which is convenient for wrench operation. The pressure cap 2 is installed in the pressure cap mounting hole 32 inside the connector nozzle 3 and is fitted onto the nut of the buffer screw 1. The pressure cap 2 is threadedly connected to the pressure cap mounting hole 32. The inside of the pressure cap 2 has a through hole 21. There is a certain gap between the inner cavity of the pressure cap 2 and the side of the buffer screw 1. The pressure cap 2 is in close contact with the upper end face of the buffer screw 1. The through hole 21 is hexagonal, which is convenient for wrench operation.
[0030] like Figures 1-4As shown, when the nozzle 3 of this utility model is in operation, a buffer screw 1 and a pressure cap 2 are tightly installed inside the nozzle 3. During pressure input, the fluid sequentially passes through each sealed cavity (fluid flow direction is axial input hole 11 → radial diversion hole 12 → fluid buffer hole 33 → radial return hole 13 → oblique outflow hole 14 → top buffer zone 15 → through hole 21, as shown). Figure 2 and Figure 4 When the fluid impacts the inner wall (as indicated by the arrow), the energy loss caused by the backflow and subsequent fluid impact can significantly reduce the flow velocity, thereby greatly reducing the impact of the fluid when it reaches the pressure core and achieving the purpose of protecting the pressure core.
[0031] The buffer screw 1 provided by this utility model slows down the fluid by setting obstacles in the path of the fluid, thereby reducing the impact caused by pressure input.
[0032] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.
[0033] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0034] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model. Technologies not covered by this utility model can be implemented by existing technologies.
Claims
1. A cushioning screw, characterized by: The buffer screw (1) sequentially has an axial input hole (11), a radial diversion hole (12), a radial return hole (13), and an oblique outflow hole (14). The inlet of the axial input hole (11) is located at the front end of the cylinder of the buffer screw (1), the outlet of the axial input hole (11) is communicated with the radial diversion hole (12), the radial return hole (13) is arranged in parallel above the radial diversion hole (12), the middle part of the radial return hole (13) is communicated with the inlet of the oblique outflow hole (14), and the outlet of the oblique outflow hole (14) is located at the top of the nut of the buffer screw (1).
2. The cushioning screw of claim 1, wherein: The axial input hole (11) is located at the lower part of the cylinder of the buffer screw (1), the radial diversion hole (12) and the radial return hole (13) are located at the upper part of the cylinder of the buffer screw (1), the lower part of the oblique outflow hole (14) extends into the upper part of the cylinder of the buffer screw (1), and the middle and upper part of the oblique outflow hole (14) is located in the nut of the buffer screw (1).
3. The cushioning screw of claim 1, wherein: The radial diversion hole (12) has at least one outlet, and the radial return hole (13) has at least one inlet.
4. The cushioning screw of claim 1, wherein: The buffer screw (1) has at least one oblique outflow hole (14).
5. The cushioning screw of claim 1, wherein: The oblique angle of the oblique outflow hole (14) is 30°-55°.
6. The cushioning screw of claim 1, wherein: The top of the nut of the buffer screw (1) is provided with a top buffer area (15), and the top buffer area (15) is communicated with the outlet of the oblique outflow hole (14).
7. The cushioning screw of claim 6, wherein: The top buffer area (15) is an internal hexagonal structure.
8. The cushioning screw of claim 1, wherein: The lower part of the cylinder of the buffer screw (1) is provided with a screw external thread (16).
9. A multi-lumen connector tip employing the cushioned screw of any of claims 1-8, wherein: The inner cavity of the connector nozzle (3) is provided with a core mounting hole (31), a fluid buffer hole (33), and a screw mounting hole (34), the screw mounting hole (34) is the inlet hole of the connector nozzle (3), the buffer screw (1) is inserted into the screw mounting hole (34) through the core mounting hole (31), the screw external thread (16) at the lower part of the cylinder of the buffer screw (1) is threadedly connected with the internal thread of the screw mounting hole (34), and the radial diversion hole (12) and the radial return hole (13) of the buffer screw (1) correspond to the fluid buffer hole (33) area of the connector nozzle (3).
10. The multi-cavity spout of claim 9, wherein: The core mounting hole (31) and the fluid buffer hole (33) are provided with a gland mounting hole (32), the gland (2) pressed on the nut of the buffer screw (1) is threadedly connected with the gland mounting hole (32), and the gland (2) is provided with a through hole (21) communicated with the oblique outflow hole (14).