阅读说明：本技术 一种中压高性能气液快速接头 (Medium-pressure high-performance gas-liquid quick connector ) 是由 张芳 焦鑫 于 2019-10-28 设计创作，主要内容包括：本发明实施例公开了一种中压高性能气液快速接头,包括阀芯和外壳,所阀芯设置在所述外壳一端的内部,且在所述外壳的另一端内表面设有管螺纹,所述阀芯和外壳的连接处均设有相互嵌合的楔形面所述外壳内壳上设有环形的沟槽,所述沟槽内设置卡簧,所述阀座固定安装在所述通阀芯的末端端面上；本发明接头通过利用管螺纹,避免内部螺纹的损伤,而且通过镜面密封提高密封效果,避免在连接和拆卸过程中漏液的发生,进一步设置沟槽,保证了内部零件位置的稳定性,加强接头的稳定性和耐用性。(The embodiment of the invention discloses a medium-pressure high-performance gas-liquid quick connector, which comprises a valve core and an outer shell, wherein the valve core is arranged inside one end of the outer shell, pipe threads are arranged on the inner surface of the other end of the outer shell, wedge-shaped surfaces which are mutually embedded are arranged at the joint of the valve core and the outer shell, an annular groove is arranged on the inner shell of the outer shell, a clamp spring is arranged in the groove, and a valve seat is fixedly arranged on the end face of the tail end of the valve core; according to the joint, the pipe threads are utilized, so that damage to internal threads is avoided, the sealing effect is improved through mirror surface sealing, liquid leakage in the connection and disassembly processes is avoided, grooves are further formed, the position stability of internal parts is guaranteed, and the stability and durability of the joint are enhanced.)

1. The utility model provides a middling pressure high performance gas-liquid quick-operation joint, its characterized in that, includes case (1) and shell (7), and case (1) sets up the inside of shell (7) one end, just the other end internal surface of shell (7) is equipped with pipe thread (6), the junction of case (1) and shell (7) all is equipped with wedge face (8) of mutual gomphosis be equipped with annular slot (9) on shell (7) inner shell, set up jump ring (5) in slot (9), disk seat (4) fixed mounting be in lead to on the terminal surface of case (1).

2. The medium-pressure high-performance gas-liquid quick connector according to claim 1, wherein the valve core (1) is provided with a circular truncated cone-shaped sealing ring (2) with the same shape as the valve core (1), a spring (3) is sleeved on the outer surface of the bottom of the valve core (1), and the other end of the spring (3) is fixedly connected with a valve seat (4) sleeved at the tail end of the valve core (1).

3. The medium-pressure high-performance gas-liquid quick connector as recited in claim 1, wherein the cross section of the clamp spring (5) is stepped, and the bottom of the clamp spring (5) is arranged in the groove (9).

4. The medium-pressure high-performance gas-liquid quick connector as recited in claim 1, wherein an annular sealing ring (10) is provided on an inner wall of a distal end of the pipe thread (6).

Technical Field

The embodiment of the invention relates to the technical field of joints, in particular to a medium-pressure high-performance gas-liquid quick joint.

Background

Quick-acting couplings include hydraulic quick-acting couplings and other types of fluid quick-acting couplings, which are special devices for quick connection and disconnection of pipes. Because it can be quickly inserted and pulled out, it can be used in the fields of building, railway, industrial and mining hydraulic machines and tools, petroleum, metallurgy, hydroelectric power, ship and electromechanical equipment, etc. The quick joint connecting structure is the most important part of the quick joint, and the connecting mode and the structure of the quick joint directly determine the use convenience, the reliability and the product quality of the quick joint. The quick connector consists of a socket and a plug, a group of steel balls are uniformly distributed on the circumference of a socket body in the conventional quick connector connection, and the radial position of the circle center of the steel balls uniformly distributed on the circumference of the socket body is changed by moving an outer sleeve lock to realize locking or plug withdrawal.

The principle of the general quick coupling is that when a plug is inserted into a socket, an outer sleeve is pushed to push the plug into the socket, the outer sleeve is loosened after the plug is inserted, the outer sleeve returns to the original position through an internal spring to lock the plug, and a pipeline is disconnected, but the quick coupling of the type has the following problems during connection: if whole valve body structure is comparatively complicated, harm inside screw easily when artificial tightening, influence the life of whole valve body, secondly inside sealed effect is not good, leads to the weeping because inside wearing and tearing after long-term the use.

In addition, in the prior art, in the use process of the quick connector, the thread on the flange plate generally needs to be wound by 8-10 circles of raw adhesive tape to achieve the sealing effect, but the specific winding of a plurality of circles and the specific tightening of the wound thread are really the operation of workshop workers according to experience and personal senses, and no specific data reference is provided, so that the production with high safety is not ensured. In addition, the raw rubber belt is easy to enter the joint in the winding and dismounting processes, the raw rubber belt can be cut off or cut off to cause slag of the raw rubber belt, the slag of the raw rubber belt is remained in the quick joint to cause leakage in different degrees, and the quick joint is an invisible potential safety hazard.

Disclosure of Invention

Therefore, the embodiment of the invention provides a medium-pressure high-performance gas-liquid quick connector, and the problems of complex structure, short service life and easy liquid leakage after long-term use in the prior art are solved by improving the structure.

In order to achieve the above object, an embodiment of the present invention provides the following:

the utility model provides a middling pressure high performance gas-liquid quick-operation joint, includes case and shell, the case setting is in the inside of shell one end, and the other end internal surface of shell is equipped with the pipe thread, the junction of case and shell all is equipped with the wedge face of mutual gomphosis be equipped with annular slot on the shell inner shell, set up the jump ring in the slot, disk seat fixed mounting is in lead to on the terminal surface of case.

As a preferred scheme of the invention, the valve core is provided with a sealing ring which has the same appearance and is in a circular truncated cone shape, the outer surface of the bottom of the valve core is sleeved with a spring, and the other end of the spring is fixedly connected with a valve seat sleeved at the tail end of the valve core.

As a preferable scheme of the present invention, a cross section of the snap spring is stepped, and a bottom of the snap spring is disposed in the groove.

In a preferred embodiment of the present invention, an annular sealing ring is disposed on an inner wall of a terminal end of the pipe thread.

The embodiment of the invention has the following advantages:

the pipe thread replaces the taper thread, so that the problem that the thread is easily damaged when the traditional taper thread is manually tightened due to the fact that the thread is fragile in the progressive process and the service life of a product is influenced is avoided, in addition, the traditional thread seal is replaced by the mirror surface seal, the sealing effect is improved, liquid leakage in the connection and disassembly processes is avoided, the groove is further formed, the position stability of internal parts is guaranteed, manual links can be reduced in the use process, the installation time is shortened, and the stability and durability of a joint are enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a block diagram of the structure in an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.

In the figure: 1-a valve core; 2-sealing ring; 3-a spring; 4-valve seat; 5-a clamp spring; 6-pipe thread; 7-a housing; 8-wedge surface; 9-a groove; 10-ring seal.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the invention provides a medium-pressure high-performance gas-liquid quick coupling, which comprises a valve core 1 and a shell 7, wherein the valve core 1 is arranged inside one end of the shell 7. In this embodiment, the housing 7 and the valve element 1 constitute the basic structure of the quick coupling, and the pipe thread 6 is provided on the inner surface of the other end of the housing 7, and the thread is replaced from the original taper thread to the pipe thread, which has the advantages of overcoming the defects that the original taper thread is fragile and the thread is easily damaged during manual tightening, and connecting the external pipe in the housing 7 by the engagement of the pipe thread 6, thereby realizing quick connection. From the above-mentioned point of view, the quick coupling should also include external pipeline, that is, the shell 7, the valve core 1 and the external pipeline jointly constitute the whole quick coupling, and the connection between the three realizes the open-close communication of the pipeline.

Further, an annular sealing ring 10 is arranged on the inner wall of the tail end of the pipe thread 6.

In the aforesaid, through the cooperation between case 1, spring 3, disk seat 4 and the jump ring 5, realize being connected between quick structure and original pipeline or the valve, make O type circle be connected inseparabler with the shell, can prevent effectively revealing.

All be equipped with the wedge face of mutual gomphosis in the junction of case 1 and shell 7, install on the wedge face of case 1 with 1 appearance of case is the same and is the sealing washer 2 of round platform form the surface cover in the bottom of case 1 is equipped with spring 3, the other end fixedly connected with cover of spring 3 is established the terminal disk seat 4 of case 1 makes sealing washer 2 sticiss on the inclined plane of casing through the elasticity of spring 3 thereby make to connect and keep sealed.

In addition, in the present embodiment, the valve seat 4 is used for fixing the spring 3, and limiting the spring 3 to only move telescopically along the axial direction of the valve element 1, so as to ensure the stability of the seal ring 2, thereby ensuring both the sealing performance and the fluidity.

The housing 7 is a conducting channel in the valve core 1 and is also a fluid channel, and when the valve core 1 triggers the original pipeline or the valve is in a passage state, the fluid flows out through the housing 7, so that the whole connecting joint is in the passage state.

In the above, when the valve core 1 is pressed, the inner side of the valve core will move, so that the valve is in a passage state, the inside of the connecting joint is in a communication state at the moment, and after the pressing force applied to the valve core 1 disappears, the valve core 1 retracts, and at the moment, due to the fact that no external force is applied, the valve core is in a circuit breaking state.

The position of the inner part is determined in the groove 9 through the inner snap spring 5 so as to keep the inner part stable, the other end of the valve core 1 penetrates through the valve seat 4, and the valve seat 4 is fixedly arranged on the end face of the tail end of the valve core 1 through the elastic force of the spring 3. The elasticity of the spring 3 enables the O-shaped ring on the valve core 1 to be extruded in the shell 7, meanwhile, in order to ensure the connection tightness of the position, an annular groove 9 is formed in the inner shell of the outer shell 7, a clamp spring 5 is arranged in the groove 9, the cross section of the clamp spring 5 is in a step shape, and the bottom of the clamp spring 5 is arranged in the groove 9.

In the embodiment, the screw thread is screwed to press the O-shaped ring to be directly contacted with the bottom mirror surface to form mirror surface sealing, so that raw adhesive tape sealing is replaced, and the sealing effect is better.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.