One-way valve joint and equipment

Abstract

The utility model provides a one-way valve joint and equipment, and the one-way valve joint comprises a joint body which is provided with a first end and a second end which are oppositely arranged, and is internally provided with a stepped through hole; a partition plate is arranged in the step through hole and close to the step of the second end in a blocking mode, and a medium through hole for medium circulation is formed in the partition plate. One end of the valve rod penetrates through the partition plate and extends outwards towards the direction of the second end, and the other end of the valve rod is fixedly connected with the partition plate; the valve plate is arranged on the valve rod in a sliding mode and can seal the end face of the second end. The elastic piece is telescopically arranged on the valve rod, one end of the elastic piece abuts against the valve plate, and the other end of the elastic piece is connected with one end of the valve rod; according to the utility model, simple connection with a hydraulic element can be realized, and the installation space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe joints, in particular to a one-way valve joint and equipment. Background Art

[0002] At present, conventional tubular check valves have internal threads at both ends and are used to connect pipelines. When some pipelines in the hydraulic system only need one-way flow, a check valve can only be connected in series in the system oil line to prevent the hydraulic oil from flowing in the opposite direction.

[0003] However, in the actual layout of the equipment, it is often inconvenient to add additional one-way valves due to space limitations. Traditionally, the return oil back pressure and oil cooler protection one-way valves on excavators are usually tubular one-way valves, which are installed between the main valve outlet and the air cooling room pipeline, and between the main valve outlet and the oil tank pipeline. The installation of tubular one-way valves requires consideration of joint connections and pipeline transfers, which makes the connection more complicated and occupies a larger space.

[0004] Therefore, there is an urgent need for a one-way valve connector and device that can achieve simple connection with hydraulic components and save installation space. Utility Model Content

[0005] The utility model aims to provide a one-way valve joint and equipment, aiming to solve the technical problems that the connecting pipelines between the traditional tubular one-way valve and the hydraulic element are complicated and occupy a large space.

[0006] To achieve the above objectives, in a first aspect, the utility model provides a one-way valve connector, comprising:

[0007] The joint body has a first end and a second end which are arranged opposite to each other, and a stepped through hole is arranged therein; a partition is arranged in the stepped through hole at a step close to the second end, and a medium through hole is arranged on the partition for medium to flow;

[0008] A valve stem, one end of which passes through the partition and extends outwardly toward the second end, and the other end of which is fixedly connected to the partition;

[0009] a valve plate, slidably disposed on the valve stem and capable of sealing an end surface of the second end;

[0010] The elastic member is telescopically arranged on the valve stem, one end of which abuts against the valve plate, and the other end of which is connected to one end of the valve stem.

[0011] As a further improvement of the above solution, the other end of the valve stem is fastened to the partition through a threaded pair.

[0012] As a further improvement of the above solution, an adjustable locking member is provided at one end of the valve stem for the other end of the elastic member to abut against.

[0013] As a further improvement of the above solution, the outer wall of the first end is provided with a first interface structure for connecting a hose or a standard connector; preferably, the first interface structure is an external thread.

[0014] As a further improvement of the above solution, the outer wall of the second end is provided with a second interface structure for matching and connecting the oil port of the corresponding hydraulic component; preferably, the second interface structure is an external thread.

[0015] As a further improvement of the above solution, the elastic member is a compression spring.

[0016] As a further improvement of the above solution, at least one medium through hole is provided on the partition.

[0017] In a second aspect, the utility model further provides a device, comprising the one-way valve connector provided in the first aspect.

[0018] Since the utility model adopts the above technical solution, the beneficial effects of this application are:

[0019] The utility model provides a one-way valve joint, comprising: a joint body, having a first end and a second end arranged opposite to each other, and provided with a stepped through hole therein; in the stepped through hole, a partition is provided at a step close to the second end, and a medium through hole is provided on the partition for medium circulation; a valve stem, one end of the valve stem passes through the partition and extends outwardly in the direction of the second end, and the other end of the valve stem is fastened to the partition; a valve plate is slidably arranged on the valve stem and can seal the end surface of the second end; an elastic member is telescopically arranged on the valve stem, one end of which abuts against the valve plate, and the other end of which is connected to one end of the valve stem; in the utility model, the joint and the one-way valve are reasonably integrated into one, and a partition for medium circulation is embedded in the inside of the joint body, and a valve plate is slidably arranged on the valve stem, through which the valve plate and the second end of the joint body are connected. The opening and closing of the end face realizes the opening of the one-way valve; in addition, the joint body has a first end and a second end arranged relatively to each other, and the valve stem extends outwardly toward the second end, so that the second end of the one-way valve joint is easy to be connected with the relevant hydraulic element; specifically, the second end of the one-way valve joint can be connected to the oil tank or air cooling, and when connected, the valve stem and the elastic member arranged on the valve stem extend into the oil tank or air cooling, and the first end of the one-way valve joint is connected to the external pipeline. When the pressure of the external pipeline is greater than the opening pressure of the elastic member, the valve plate opens in one direction, so that the medium in the external pipeline enters the oil tank or air cooling through the medium through hole on the partition; if the pressure inside the oil tank or air cooling is greater than the pressure inside the external pipeline, the valve plate seals and seals on the end face of the second end of the joint body, thereby closing the connection between the oil tank or air cooling and the external pipeline;

[0020] Due to the integrated one-way valve opening structure provided by the utility model (opening is achieved by fitting the valve plate and the end face of the second end, and the valve stem and the elastic member are extended out of the joint body), compared with the traditional external additional series tube one-way valve, the one-way valve joint has smaller external dimensions, thereby saving installation space; when connected to related hydraulic components, it can also save related transition adapter joints, further reducing the requirements for installation space; at the same time, it also reduces the difficulty of pipeline connection and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1It is a partial cross-sectional schematic diagram of a one-way valve connector disclosed in the utility model;

[0023] Figure 2 It is a cross-sectional schematic diagram of a one-way valve connector disclosed in the utility model when connecting a hydraulic element and an external pipeline;

[0024] Figure 3 It is a partial three-dimensional schematic diagram of a device using the one-way valve connector disclosed in the utility model;

[0025] Figure 4 It is a partial three-dimensional schematic diagram of a device using a traditional tubular one-way valve.

[0026] Reference numerals:

[0027] 1. Connector body; 11. First end; 12. Second end; 13. Step through hole; 2. Partition plate; 21. Medium through hole; 3. Valve stem; 4. Valve plate; 5. Elastic member; 6. Adjustable locking member;

[0028] 7. External pipelines; 8. Hydraulic components.

[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that all directional indications (such as up, down, etc.) in the implementation mode of the utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0033] Furthermore, the technical solutions between the various implementation modes of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1 and Figure 2 The utility model provides a one-way valve connector, comprising:

[0036] The joint body 1 has a first end 11 and a second end 12 which are arranged opposite to each other, and a stepped through hole 13 is arranged therein; a partition plate 2 is arranged in the stepped through hole 13 near the second end 12, and a medium through hole 21 for medium circulation is arranged on the partition plate 2; at least one medium through hole 21 is arranged on the partition plate 2, and in this embodiment, two medium through holes 21 are arranged symmetrically about the axis of the joint body 1;

[0037] A valve stem 3, one end of which passes through the partition 2 and extends outwardly toward the second end 12, and the other end of which is fixedly connected to the partition 2;

[0038] a valve plate 4, slidably disposed on the valve stem 3 and capable of sealing an end surface of the second end 12;

[0039] The elastic member 5 is telescopically arranged on the valve stem 3, one end of which abuts against the valve plate 4, and the other end of which is connected to one end of the valve stem 3; in this embodiment, the elastic member 5 is a compression spring, and the compression spring is sleeved on the outside of the valve stem 3, one end of which abuts against the valve plate 4, and the other end of which abuts against one end of the valve stem 3;

[0040] In the present invention, the connector and the one-way valve are reasonably integrated into one, and a partition plate 2 for medium circulation is embedded inside the connector body 1, and a valve plate 4 is slidably arranged on the valve stem 3, and the one-way valve is opened by opening and closing the end surface of the valve plate 4 and the second end 12 of the connector body 1; in addition, the connector body 1 has a first end 11 and a second end 12 arranged opposite to each other, and the valve stem 3 extends outward toward the second end 12, so that the second end 12 of the one-way valve connector is easy to connect with the relevant hydraulic element 8; for details, see Figure 2The second end 12 of the one-way valve joint can be connected to the hydraulic element 8, such as the oil tank or the air cooler. When connected, the valve stem 3 and the elastic member 5 arranged on the valve stem 3 extend into the oil tank or the air cooler. The first end 11 of the one-way valve joint is connected to the external pipeline. When the medium pressure in the external pipeline is greater than the opening pressure of the elastic member 5; the valve plate 4 is opened in one direction, so that the medium in the external pipeline enters the oil tank or the air cooler through the medium through hole 21 on the partition plate 2 ( Figure 2 The arrow in the middle indicates the flow direction of the medium); if the pressure inside the oil tank or air cooling is greater than the pressure inside the external pipeline, the valve plate 4 is sealed against the end surface of the second end 12 of the joint body 1, thereby closing the connection between the inside of the oil tank or air cooling and the external pipeline to prevent the medium in the oil tank or air cooling from flowing back;

[0041] With such an arrangement, on the basis of achieving unidirectional conduction, since the connector body 1 itself is substantially the same size as a conventional connector, and when connected, the valve stem 3 and the elastic member 5 both extend into the correspondingly connected hydraulic element 8, the volume of the exposed portion is almost the same as that of a conventional connector; when connected to the relevant hydraulic element 8, the relevant transition adapter connector can be saved, further reducing the requirements for installation space; when connecting the pipeline, it is only necessary to connect the external pipeline 7 to the first end 11, thereby reducing the difficulty of pipeline connection and assembly.

[0042] As a preferred embodiment, the other end of the valve stem 3 is fastened to the partition 2 through a threaded pair; specifically, a threaded hole is provided in the middle of the partition 2, and correspondingly, the other end of the valve stem 3 is provided with a thread matching and connected to the threaded hole, thereby realizing the fastening connection between the valve stem 3 and the partition 2;

[0043] Alternatively, a through hole is provided in the middle of the partition 2, and a threaded section is provided at the other end of the valve stem 3, and a locking nut is used to realize the fastening connection between the valve stem 3 and the partition 2; the fastening connection method is convenient for adjusting the verticality of the valve stem 3 and the partition 2, so that the valve plate 4 can slide smoothly thereon;

[0044] In some preferred embodiments, one end of the valve stem 3 and the partition plate 2 may also be welded into one body.

[0045] As a preferred embodiment, one end of the valve stem 3 is provided with an adjustable locking piece 6 for the other end of the elastic piece 5 to abut against; preferably, the adjustable locking piece 6 is a fastening component. Specifically, in the present embodiment, two nuts and a gasket are stacked on one end of the valve stem 3 to form the adjustable locking piece 6, and the elastic piece 5 abuts against the gasket. The combination of the nut and the gasket is provided to provide abutment for the other end of the elastic piece 5. On the one hand, the connection between the elastic piece 5 and one end of the valve stem 3 can be achieved. On the other hand, the initial compression amount of the elastic piece 5 can be adjusted by adjusting the position of the nut gasket through the abutment mode of the adjustable nut gasket, thereby achieving the purpose of adjusting the opening pressure of the one-way valve joint.

[0046] As a preferred embodiment, the outer wall of the first end 11 is provided with a first interface structure for connecting a hose or a standard connector; preferably, the first interface structure is an external thread; see Figure 2 The external pipe 7 is connected to the one-way valve joint through the first interface structure.

[0047] The outer wall of the second end 12 is provided with a second interface structure for matching and connecting the oil port of the corresponding hydraulic element 8; preferably, the second interface structure is an external thread; see Figure 2 The hydraulic element 8 is connected to the one-way valve joint through the second interface structure. When connected, since the valve stem 3 and the elastic member 5 thereon need to extend into the interior of the hydraulic element 8, and the second end 12 is sealed and connected to the hydraulic element 8 through a threaded pair, at least one standard joint and one installation space of a traditional tubular one-way valve can be saved, so that the one-way valve joint provided by the utility model is easy to install and connect, and can also save installation space.

[0048] Embodiment 2:

[0049] See also Figure 3 The utility model also provides a device, comprising a hydraulic element 8 and a hydraulic pipe, and a one-way valve joint provided in Example 1; the first end 11 of the one-way valve joint is connected to one end of the hydraulic pipe, the valve stem 3 of the one-way valve joint extends into the connection interface of the hydraulic element 8, and is sealed and connected to the hydraulic element 8 through the second interface structure of the second end 12; such a setting can save at least one joint and the installation space of the tubular one-way valve, which is particularly suitable for compact settings;

[0050] In this embodiment, the hydraulic element 8 is described by taking the oil tank as an example. If a conventional tubular one-way valve is used, see Figure 4First, a common joint is needed to be connected to the hydraulic element 8, and then a tubular one-way valve is connected in series to the common joint, and then the tubular one-way valve is connected to the corresponding hose; in contrast, the one-way valve joint provided by the utility model can greatly simplify the connection between the hose and the corresponding hydraulic element 8, and can save installation space.

[0051] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A one-way valve connector, characterized in that: include: The joint body has a first end and a second end that are arranged opposite to each other, and a stepped through hole is provided therein; a partition is provided in the stepped through hole at a step close to the second end, and a medium through hole is provided on the partition for medium to flow; a valve stem, one end of which passes through the partition and extends outwardly toward the second end, and the other end of which is fixedly connected to the partition; a valve plate, slidably disposed on the valve stem and capable of sealing an end surface of the second end; The elastic member is telescopically arranged on the valve stem, one end of which abuts against the valve plate, and the other end is connected to one end of the valve stem.

2. A one-way valve connector according to claim 1, characterized in that: The other end of the valve stem is fastened to the partition plate through a threaded pair.

3. A one-way valve connector according to claim 1 or 2, characterized in that: One end of the valve stem is provided with an adjustable locking piece for the other end of the elastic piece to abut against.

4. A one-way valve connector according to claim 1 or 2, characterized in that: The outer wall of the first end is provided with a first interface structure for connecting a hose or a standard connector.

5. A one-way valve connector according to claim 4, characterized in that: The outer wall of the second end is provided with a second interface structure for matching and connecting with an oil port of a corresponding hydraulic component.

6. A one-way valve connector according to claim 1 or 2, characterized in that: The elastic member is a compression spring.

7. A one-way valve connector according to claim 1 or 2, characterized in that: At least one medium through hole is provided on the partition.

8. A device, characterized in that It comprises a one-way valve connector as described in any one of claims 1 to 7.

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