CN218441091U

CN218441091U - Precision air inlet joint

Info

Publication number: CN218441091U
Application number: CN202120610740.2U
Authority: CN
Inventors: 何秀华
Original assignee: Jiaxing Daywork Machinery Co ltd
Current assignee: Jiaxing Daywork Machinery Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2023-02-03
Anticipated expiration: 2031-03-25

Abstract

The utility model relates to an accurate air inlet joint. The problems that in the prior art, the air inlet connector needs to be subjected to thread secondary machining during machining, the process is complex and the yield is low are solved. It includes sealed pedestal, sealed pedestal one side has circular connection uncovered, the opposite side is equipped with the installation accessory, sealed pedestal is equipped with the pressure measurement barrel that is vertical setting and communicates each other with sealed pedestal inner chamber with installation accessory upper end, one side that sealed pedestal was kept away from to the installation accessory is connected with the intake pipe through fixation nut, intake pipe circumference outer wall has screw thread portion, and the diameter of intake pipe is less than fixation nut's minimum diameter, integrated into one piece between sealed pedestal, the installation accessory, fixation nut, the intake pipe. The utility model has the advantages that: the productivity is improved, the production cost is reduced, and the yield is improved.

Description

Precision air inlet joint

Technical Field

The utility model relates to an admission valve connects technical field, concretely relates to accurate air inlet joint.

Background

The water heater is a common household energy conversion device, and is a main device for rapidly obtaining hot water in daily life, the water heater is divided into a gas water heater, an electric water heater, a solar water heater and the like according to different energy sources during heating, wherein the gas water heater has a relatively minimum volume, the main energy source of the gas water heater is gas, can be liquefied petroleum gas or natural gas, and is used for distinguishing the flow of an air valve only during combustion, the gas water heater essentially burns combustible gas to release heat and heat hot water, an air inlet valve of the water heater is a main structure for controlling the introduction of the gas, a valve body of the air inlet valve needs to have accurate flow counting and has reliable connectivity, the traditional single direction control valve body structure cannot effectively control the air inflow, and the structure is directly connected to an air inlet connector, so that the connection effect is unstable and easy to generate shaking; meanwhile, the traditional air inlet joint needs to be subjected to thread secondary processing during processing, so that the process is complicated, the cost is high, the conditions of air holes and sand holes are easy to occur, meanwhile, the manual assembly reject ratio is high, and the processing quality is reduced.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses an intake valve [ CN201920592399.5] of a small-capacity water heater, which comprises an intake valve main body, wherein the intake valve main body is formed into a shell structure with a cavity inside, an intake connector mounting surface, a stop valve body mounting surface, a control valve body mounting surface and an exhaust connector mounting surface are formed on the surface of the intake valve main body, an intake port is formed inside a structure corresponding to the intake connector mounting surface of the intake valve main body, an intake cavity is formed inside the intake port, a stop valve hole for accommodating a valve element of a stop valve is formed inside the structure corresponding to the stop valve body mounting surface, the stop valve hole is communicated with the intake cavity, a control cavity for accommodating a valve element of the control valve is formed inside the structure corresponding to the control valve body mounting surface, the control cavity is communicated with the intake cavity through an airflow channel, and an exhaust hole is formed on a solid structure corresponding to the exhaust connector mounting surface.

Above-mentioned scheme has solved to a certain extent among the prior art mode that admission valve and air inlet joint directly link to each other and has produced easily and rock, the not good problem of stability, but this scheme still has a great deal of not enough, for example: the air inlet joint needs to be subjected to thread secondary machining during machining, so that the process is complicated, the cost is high, the air holes and the sand holes are easy to occur, meanwhile, the reject ratio of manual assembly is high, and the machining quality is reduced.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a reasonable in design, accurate air inlet joint that processingquality is good.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this accurate air inlet joint, including sealed pedestal, sealed pedestal one side has that circular connection is uncovered, the opposite side is equipped with the installation accessory, sealed pedestal is equipped with the pressure measurement barrel that is vertical setting and communicates each other with sealed pedestal inner chamber with installation accessory upper end, one side that sealed pedestal was kept away from to the installation accessory is connected with the intake pipe through fixation nut, intake pipe circumference outer wall has screw thread portion, and the diameter of intake pipe is less than fixation nut's minimum diameter, sealed pedestal, the installation accessory, fixation nut, integrated into one piece between the intake pipe. The thread to be processed is changed into one-step forming on the die, the additional processing of the thread on the circumferential outer wall of the air inlet pipe is reduced, the condition of air holes and sand holes easily occurring when the thread is processed independently is also reduced, the defect caused by manual operation is avoided, the processing effect is good, the productivity is improved, the production cost is reduced, the structure is compact, and the stability is good.

In the above precision air inlet joint, the air inlet pipe, the installation fitting and the inner cavity of the sealing seat body are communicated with each other to form an air inlet channel, and the inner diameters of the air inlet channel from the air inlet pipe to the sealing seat body are the same. The internal diameter is the same and makes the air admission more smooth and easy, adds the same mould of use moreover man-hour, and it is convenient to process.

In the above-mentioned precision air inlet joint, the mounting fitting is in a diamond shape, and two ends of the mounting fitting are exposed out of the sealing seat body and extend away from the sealing seat body to form a mounting portion, and the mounting portion is correspondingly provided with a mounting hole. Stability is better when making the intake pipe installation through the mounting hole that sets up on the installation department.

In the above-mentioned precision air inlet joint, the thickness of the installation part is less than the thickness of the middle part of the installation fitting, and an L-shaped positioning structure is formed between one side of the installation part close to the sealing seat body and the outer wall of the sealing seat body. The L-shaped positioning structure is beneficial to the installation of the sealing seat body.

In foretell accurate air inlet joint, be between sealing seat and the installation accessory and pile up the setting, and sealing seat circumference four corners is equipped with the fixed orifices, and installation accessory both sides have the arc bellying, and both sides have the arc depressed part about the sealing seat, and the arc depressed part middle part keeps flushing with the arc bellying middle part. The stacking arrangement is adopted, so that the structure is more compact, and the mold is convenient to process due to good integration.

At foretell precision air inlet joint well head, installation accessory circumference outer wall is located to be equipped with the arc between installation department and the arc bellying and steps down the recess, and the arc is stepped down the recess and is corresponding the setting with the fixed orifices outside. The arc-shaped abdicating groove is provided with a fixing screw rod which is convenient for the fixing screw rod to pass through the fixing hole to be fixed on the sealing seat body.

In the precision air inlet joint, the pressure measuring cylinder body has the same outer diameter from top to bottom, the inner diameter is gradually reduced, a U-shaped groove is formed in the end part, close to the sealing seat body, of the air inlet channel, an airflow hole is formed in the U-shaped groove, and the air inlet channel is communicated with the inner cavity of the pressure measuring cylinder body through the airflow hole.

In the above-mentioned precision air inlet joint, the end part of the sealing seat body, which is located at the end of the air inlet channel with the U-shaped groove, is provided with an arc-shaped positioning step. The installation of sealed pedestal is spacing to arc location step.

In the above-described precision air intake joint, the fixing nut is formed on the mounting fitting and located on the circumferential inner side of the mounting hole, the arc-shaped mounting portion, and the arc-shaped protrusion portion.

In the above-mentioned precision air inlet joint, the bottom of the pressure measuring cylinder is arranged on the arc-shaped convex part at one side of the installation fitting and the arc-shaped concave part at one side of the sealing seat body.

Compared with the prior art, the utility model has the advantages of: the air inlet pipe is reasonable in design and compact in structure, the thread part is formed on the die once, secondary processing of threads on the circumferential outer wall of the air inlet pipe is reduced, the situations that air holes and sand holes are easy to occur when the threads are processed independently are also reduced, the defects caused by manual operation are reduced, and the processing effect is good; and installation accessory and sealed pedestal's setting up makes this accurate air inlet joint structure compacter, and integral type design stability is better.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of another perspective of the utility model;

fig. 3 is a top view of the present invention;

fig. 4 is a plan view of the present invention.

In the figure, the sealing seat body 1, the circular connecting opening 11, the fixing hole 12, the arc-shaped recess 13, the arc-shaped positioning step 14, the mounting accessory 2, the arc-shaped mounting portion 21, the mounting hole 22, the L-shaped positioning structure 23, the arc-shaped protrusion 24, the arc-shaped abdicating groove 25, the pressure measuring cylinder 3, the fixing nut 4, the air inlet pipe 5, the threaded portion 51, the air inlet channel 6, the U-shaped groove 61, and the airflow hole 62.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-4, this precision air inlet joint, including sealed pedestal 1, sealed pedestal 1 one side has circular connection uncovered 11, the opposite side is equipped with installation accessory 2, sealed pedestal 1 is equipped with the pressure measurement barrel 3 that is vertical setting and communicates each other with sealed pedestal 1 inner chamber with installation accessory 2 upper end, one side that sealed pedestal 1 was kept away from to installation accessory 2 is connected with intake pipe 5 through fixation nut 4, intake pipe 5 circumference outer wall has screw thread portion 51, and the diameter of intake pipe 5 is less than fixation nut 4's minimum diameter, sealed pedestal 1, installation accessory 2, fixation nut 4, integrated into one piece between the intake pipe 5. The threaded parts 51 are sequentially formed on the circumferential outer wall of the air inlet pipe 5, so that secondary processing of threads on the circumferential outer wall of the air inlet pipe 5 is avoided, the situations of air holes and sand holes which are easy to occur when the threaded parts 51 are processed independently are also reduced, the defects caused by manual operation are avoided, and the processing effect is good; and installation accessory 2 and sealed pedestal 1 set up to make this precision air inlet joint structure compacter, and integral type design stability is better. Not only improves the productivity but also reduces the production cost,

wherein, communicate each other and form inlet channel 6 between intake pipe 5, installation accessory 2, the 1 inner chamber of sealing seat body, inlet channel 6 is the same from intake pipe 5 to 1 internal diameter of sealing seat body.

Obviously, the mounting fitting 2 is in a diamond shape, and two ends of the mounting fitting are exposed out of the sealing seat body 1 and extend away from the sealing seat body 1 to form a mounting portion 21, and at least one mounting hole 22 is correspondingly formed on the mounting portion 21. Here, a plurality of mounting holes may be provided for multiple fixation.

It can be seen that the thickness of the mounting portion 21 is smaller than the thickness of the middle portion of the mounting fitting 2 and an L-shaped positioning structure 23 is formed between the side of the mounting portion 21 close to the seal housing 1 and the outer wall of the seal housing 1. Here, the L-shaped positioning structure 23 also has a limiting function for limiting the installation of the sealing seat.

Further, be between sealed pedestal 1 and the installation accessory 2 and pile up the setting, and 1 circumference four corners of sealed pedestal is equipped with

fixed orifices

12, and 2 both sides of installation accessory have arc bellying 24, and both sides have arc depressed part 13 about sealed pedestal 1, and 13 middle parts of arc depressed part keep flushing with 24 middle parts of arc bellying. The arrangement makes the middle of the arc-shaped concave part 13 and the middle of the arc-shaped convex part 24 keep horizontal, which is beneficial to the bottom molding of the pressure measuring cylinder 3.

Specifically, installation accessory 2 circumference outer wall is located and is equipped with the arc recess 25 of stepping down between installation department 21 and the arc bellying 24, and the arc recess 25 of stepping down is corresponding the setting with the fixed orifices 12 outside. The arc-shaped abdicating groove 25 is convenient for positioning when the fixing screw is installed in the fixing hole 12.

Furthermore, the pressure measuring cylinder 3 has the same outer diameter from top to bottom, the inner diameter is gradually reduced, a U-shaped groove 61 is formed in the end portion of the air inlet channel 6 close to the sealing seat body 1, an airflow hole 62 is formed in the U-shaped groove 61, and the air inlet channel 6 is communicated with the inner cavity of the pressure measuring cylinder 3 through the airflow hole 62. The diameter of the airflow hole 62 is smaller than the minimum diameter of the pressure measuring cylinder 3, and the small diameter can reduce gas loss.

Preferably, the end of the seal holder body 1 at the end of the air inlet channel 6 having the U-shaped groove 61 is provided with an arc-shaped positioning step 14. The outer tubular body is positioned by the arc positioning step 14.

More specifically, the fixing nut 4 is formed on the mounting fitting 2 and located circumferentially inside the mounting hole 22, the arc-shaped mounting portion 21, and the arc-shaped boss 24.

In detail, the bottom of the pressure measuring cylinder 3 is provided on the arc-shaped convex portion 24 on the side of the mounting fitting 2 and the arc-shaped concave portion 13 on the side of the seal housing 1.

The principle of the embodiment is as follows: the threaded part 51 is formed on the circumferential outer wall of the air inlet pipe 5 in one step, so that secondary processing of threads on the circumferential outer wall of the air inlet pipe 5 is avoided, the phenomenon that air holes and sand holes are easy to appear when the threaded part 51 is processed independently is also reduced, the defects caused by manual operation are avoided, the processing effect is good, the productivity is improved, and the production cost is reduced; and installation accessory 2 and sealed pedestal 1 set up to make this precision air inlet joint structure compacter, and integral type design stability is better.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the seal housing 1, the circular connection opening 11, the fixing hole 12, the arc-shaped recess 13, the arc-shaped positioning step 14, the mounting fitting 2, the arc-shaped mounting portion 21, the mounting hole 22, the L-shaped positioning structure 23, the arc-shaped protrusion 24, the arc-shaped relief groove 25, the pressure measuring cylinder 3, the fixing nut 4, the air inlet pipe 5, the threaded portion 51, the air inlet passage 6, the U-shaped groove 61, the airflow hole 62, etc., are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a precision air inlet joint, includes sealed pedestal (1), sealed pedestal (1) one side open (11) of circular connection have, the opposite side is equipped with installation accessory (2), sealed pedestal (1) and installation accessory (2) upper end be equipped with be vertical setting and with pressure measurement barrel (3) of sealed pedestal (1) inner chamber intercommunication each other, its characterized in that, one side of keeping away from sealed pedestal (1) of installation accessory (2) be connected with intake pipe (5) through fixation nut (4), intake pipe (5) circumference outer wall screw thread portion (51) have, and the diameter of intake pipe (5) is less than the minimum diameter of fixation nut (4), sealed pedestal (1), installation accessory (2), fixation nut (4), intake pipe (5) between integrated into one piece.

2. The precise air inlet joint according to claim 1, wherein the air inlet pipe (5), the installation fitting (2) and the inner cavity of the seal seat body (1) are communicated with each other to form an air inlet channel (6), and the inner diameters of the air inlet channel (6) from the air inlet pipe (5) to the seal seat body (1) are the same.

3. The precision air inlet joint according to claim 2, wherein the mounting fitting (2) is diamond-shaped, and two ends of the mounting fitting are exposed out of the sealing seat body (1) and extend away from the sealing seat body (1) to form a mounting portion (21), and the mounting portion (21) is correspondingly provided with at least one mounting hole (22).

4. A precision air inlet joint according to claim 3, characterized in that the thickness of the mounting part (21) is less than the thickness of the middle part of the mounting fitting (2) and an L-shaped positioning structure (23) is formed between the side of the mounting part (21) close to the sealing seat body (1) and the outer wall of the sealing seat body (1).

5. The precision air inlet joint according to claim 4, wherein the sealing seat body (1) and the mounting fitting (2) are stacked, fixing holes (12) are formed at four circumferential corners of the sealing seat body (1), arc-shaped protrusions (24) are arranged on two sides of the mounting fitting (2), arc-shaped recesses (13) are formed on the upper side and the lower side of the sealing seat body (1), and the middle of each arc-shaped recess (13) is flush with the middle of each arc-shaped protrusion (24).

6. The precision air inlet joint according to claim 5, characterized in that the circumferential outer wall of the mounting fitting (2) is provided with an arc-shaped abdicating groove (25) between the mounting part (21) and the arc-shaped bulge (24), and the arc-shaped abdicating groove (25) is correspondingly arranged with the outer side of the fixing hole (12).

7. The precision air inlet joint according to claim 2, wherein the pressure measuring cylinder (3) has the same outer diameter from top to bottom, the inner diameter is gradually reduced, a U-shaped groove (61) is formed at one end of the air inlet channel (6) close to the sealing seat body (1), an air flow hole (62) is formed in the U-shaped groove (61), and the air inlet channel (6) is communicated with the inner cavity of the pressure measuring cylinder (3) through the air flow hole (62).

8. A precision air inlet joint according to claim 7, characterized in that the end of the seal housing (1) at the end of the air inlet channel (6) having the U-shaped groove (61) is provided with an arc-shaped positioning step (14).

9. The precision air inlet joint according to claim 6, wherein the fixing nut (4) is formed on the mounting fitting (2) and is located on the circumferential inner side of the mounting hole (22), the mounting portion (21) and the arc-shaped bulge (24).

10. The precision air inlet joint according to claim 5, characterized in that the bottom of the pressure measuring cylinder (3) is arranged on the arc-shaped convex part (24) at one side of the installation fitting (2) and the arc-shaped concave part (13) at one side of the sealing seat body (1).