CN219474950U

CN219474950U - Test device for opening safety valve of mechanical multi-way reversing valve

Info

Publication number: CN219474950U
Application number: CN202320366076.0U
Authority: CN
Inventors: 初晓辉; 王宝龙; 冯俊忠; 王俊; 赵鹏洲; 武海江; 李再革; 李丰赟
Original assignee: Weichai Lovol Intelligent Agricultural Technology Co Ltd
Current assignee: Weichai Lovol Intelligent Agricultural Technology Co Ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-08-04
Anticipated expiration: 2033-03-02

Abstract

The utility model relates to a test device for opening a safety valve of a mechanical multi-way reversing valve, which comprises a test bed, a support frame and a push rod, wherein the support frame is arranged on the test bed and can move horizontally and be positioned; the push rod is horizontally arranged on the support frame, can move up and down and be positioned, and can move horizontally and be positioned; one end of the push rod is provided with a connector assembly which is used for detachably connecting the safety valve. The utility model has the advantages of simple structure, reasonable design, capability of realizing automatic and rapid opening of the safety valve, simple and convenient operation, high efficiency, time saving and labor saving.

Description

Test device for opening safety valve of mechanical multi-way reversing valve

Technical Field

The utility model relates to the technical field of safety valve opening test equipment, in particular to a test device for opening a safety valve of a mechanical multi-way reversing valve.

Background

Hydraulic technology plays an important role in the modern industry. The mechanical multi-way reversing valve is used as a common hydraulic mechanism, takes more than two reversing valves as a main body, integrates multiple functions of the reversing valve, the one-way valve, the overload valve, the oil supplementing valve, the brake valve and the like, has the characteristics of compact structure, high working pressure, good performance and reliable work, and is widely applied to mechanical hydraulic systems of combine harvesters, tractors and the like. At present, along with the wider and wider application of the multi-way valve in mechanical engineering, the development and design of the multi-way valve are in the stage of rapid development, the development and verification tasks of the corresponding multi-way valve are gradually increased, and the performance verification of the mechanical multi-way reversing valve is often completed through a bench test. When the mechanical multi-way reversing valve is used for pressure valve calibration test, any one safety valve of the mechanical multi-way reversing valve needs to be opened, so that the test can be performed. The sizes and the styles of products and safety valves with different brands and different models on the market are not uniform, and in a pressure calibration test, the safety valve is opened. A special test device with simple structure and quick installation is needed first, and the opening modes of different valve bodies can be met to solve the existing problems.

When the mechanical multi-way valve is used for pressure calibration test, a tester usually presses or pulls the pressure valve by hand in the test process until the test is finished. The disadvantages of this approach are: the safety valve needs to be manually dragged or pressed to be opened, hydraulic oil is arranged on the outer surface of the safety valve rod, and the safety valve is difficult to grip; lack of dedicated drag and press tools, lack of means to ensure that the safety valve is open during the test.

Disclosure of Invention

The utility model aims to solve the technical problem in the prior art by providing a test device for opening a safety valve of a mechanical multi-way reversing valve.

The technical scheme for solving the technical problems is as follows:

the test device for opening the safety valve of the mechanical multi-way reversing valve comprises a test bed, a support frame and a push rod, wherein the support frame is arranged on the test bed and can move horizontally and be positioned; the push rod is horizontally arranged on the support frame, can move up and down and be positioned, and can move horizontally and be positioned; one end of the push rod is provided with a connector assembly for detachably connecting the safety valve.

The beneficial effects of the utility model are as follows: during operation, the support frame can move horizontally on the test bed, and the push rod can move up and down and move horizontally on the support frame, so that the safety valves at different positions of the multi-way valve are opened, the universality is high, manual opening is replaced, the opening is convenient, and the time and the labor are saved.

The utility model has simple structure and reasonable design, can realize the automatic and quick opening of the safety valve, and has simple and convenient operation, high efficiency, time saving and labor saving.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the support frame comprises a fixing frame body, wherein the fixing frame body is vertically arranged on the test bed and can horizontally move and be positioned; the push rod is arranged on the fixed frame body.

The beneficial effect of adopting above-mentioned further scheme is when the operation, the mount body can be on the test bench horizontal migration, and the push rod can reciprocate and horizontal migration on the mount body simultaneously to realize opening the relief valve of the different positions of multiple unit valve, the commonality is strong, replaces manual opening, opens conveniently, labour saving and time saving.

Further, the fixing frame body is of a square steel structure.

The adoption of the further scheme has the beneficial effects of simple structure, reasonable design and convenience in cooperation with the push rod, so that the safety valves at different positions can be quickly opened.

Further, the support frame also comprises a base, wherein the base is horizontally arranged on the test bed and can horizontally move and be positioned; the fixing frame body is vertically and fixedly arranged on the base.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design, through the base with the mount body with push rod integrated in an organic whole, it is more convenient to use.

Further, a through body is arranged on the fixing frame body, can move up and down and is positioned, and the push rod is arranged on the through body.

The beneficial effect of adopting above-mentioned further scheme is simple structure, reasonable in design, can realize the installation of push rod and mount body through the whole body to realize the reciprocating and the horizontal migration of push rod on the mount body, simple to operate.

Further, the whole body is in a block structure, one end of the whole body is provided with a first opening which horizontally penetrates, and the other end of the whole body is provided with a second opening which vertically penetrates; the push rod can be positioned and horizontally penetrates through the first opening, and the fixing frame body can be positioned and vertically penetrates through the second opening.

The beneficial effect of adopting above-mentioned further scheme is simple structure, reasonable in design, utilizes the special structure of whole body can realize the installation of push rod and mount body, can realize simultaneously that the push rod reciprocates and horizontal migration on the mount body, simple to operate.

Further, a first screw hole communicated with the first opening is formed in the whole body, a first locking screw is connected to the first screw hole in an internal thread mode, and the first locking screw is screwed until one end of the first locking screw abuts against or is separated from the push rod, so that the push rod is fixed or loosened.

The locking screw is manually screwed to one end of the locking screw to be abutted against or separated from the push rod so as to fix or loosen the push rod, and the locking screw is simple and convenient to operate, and saves time and labor.

Further, a second screw hole communicated with the second opening is formed in the whole body, a second locking screw is connected to the second screw hole in an internal thread mode, and the second locking screw is screwed until one end of the second locking screw is abutted to or separated from the fixing frame body, so that the fixing frame body is fixed or loosened.

The locking screw two can be manually screwed to one end of the locking screw two is abutted or separated with the fixing frame body during operation so as to fix or loosen the fixing frame body, and the locking screw two is simple and convenient to operate, and saves time and labor.

Further, a handle is arranged at the other end of the push rod.

The beneficial effect of adopting above-mentioned further scheme is simple structure, reasonable in design, makes things convenient for manual operation push rod through the handle to make push rod horizontal migration, easy and simple to handle, labour saving and time saving.

Further, the connector assembly comprises a connector, one end of the connector is detachably connected with one end of the push rod, and the other end of the connector is detachably connected with the safety valve.

The beneficial effect of adopting above-mentioned further scheme is when the operation, accessible connector connects push rod and relief valve to open the relief valve, easy dismounting.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a partial top view of the present utility model;

FIG. 3 is an enlarged view of FIG. 2A;

fig. 4 is a front view of a first embodiment of a connector according to the present utility model;

FIG. 5 is a top view of a first embodiment of a connector according to the present utility model;

fig. 6 is a front view of a second embodiment of a connector according to the present utility model;

fig. 7 is a top view of a second embodiment of the connector of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a test bed; 2. a push rod; 3. a safety valve; 4. a fixing frame body; 5. a base; 6. a whole body; 7. a first locking screw; 8. locking a second screw; 9. a handle; 10. a connector; 11. a pin; 12. and (5) a pin block.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

As shown in fig. 1 to 7, the present embodiment provides a test device for opening a safety valve of a mechanical multiple directional control valve, comprising a test stand 1, a support frame and a push rod 2, wherein the support frame is mounted on the test stand 1, can move horizontally and is positioned; the push rod 2 is horizontally arranged on the support frame, can move up and down and be positioned, and can move horizontally and be positioned; one end of the push rod 2 is provided with a connector assembly for detachably connecting the safety valve 3.

During operation, the support frame can move horizontally on the test bed 1, and meanwhile the push rod 2 can move up and down and horizontally on the support frame, so that the safety valve 3 at different positions of the multi-way valve is opened, the universality is strong, the manual opening is replaced, the opening is convenient, and the time and the labor are saved.

In the present embodiment, the test stand 1 is preferably a rectangular flat plate structure, and has a regular shape.

The embodiment has simple structure and reasonable design, can realize automatic and quick opening of the safety valve, is simple and convenient to operate, has high efficiency, and saves time and labor.

Example 2

On the basis of embodiment 1, in this embodiment, the support frame includes a fixing frame body 4, where the fixing frame body 4 is vertically disposed on the test stand 1, and can move horizontally and be positioned; the push rod 2 is arranged on the fixed frame body 4.

During operation, the fixing frame body 4 can horizontally move on the test bed 1, and meanwhile the push rod 2 can vertically move and horizontally move on the fixing frame body 4, so that the safety valve 3 at different positions of the multi-way valve is opened, the universality is high, the manual opening is replaced, the opening is convenient, and the time and the labor are saved.

Example 3

On the basis of embodiment 2, in this embodiment, the fixing frame body 4 is in a square steel structure.

This scheme simple structure, reasonable in design is convenient to cooperate with push rod 2 to realize the quick opening of different position relief valve 3.

Preferably, in this embodiment, the cross section of the fixing frame body 4 has a rectangular structure.

Example 4

In this embodiment, the support frame further includes a base 5, where the base 5 is horizontally mounted on the test stand 1, and can be horizontally moved and positioned; the fixing frame body 4 is vertically and fixedly arranged on the base 5.

This scheme simple structure, reasonable in design integrates mount body 4 and push rod 2 in an organic whole through base 5, and it is more convenient to use.

Preferably, in this embodiment, the base 5 is preferably a rectangular plate structure, and two through oval holes are oppositely arranged side by side on the base, and bolts are movably installed in the two oval holes respectively; the test stand 1 is provided with a plurality of strip-shaped openings which are mutually parallel and vertically penetrated. When the device is used, the two kidney-shaped holes are respectively opposite to any two adjacent strip-shaped openings, the two bolts are respectively inserted into the corresponding two strip-shaped openings, and the two bolts are manually screwed or unscrewed to fix or loosen the base 5, so that the device is simple and convenient to operate, and saves time and labor.

In addition to the above embodiment, the base 5 may be fixed in other manners, for example, a magnet is fixedly mounted on the test stand 1 along the sliding direction of the base 5, the base 5 may be adsorbed on any portion of the magnet, and a certain external force is required to separate the base 5 from the magnet.

Example 5

In this embodiment, a through body 6 is mounted on the fixed frame body 4 so as to be capable of moving up and down and being positioned, and the push rod 2 is mounted on the through body 6.

This scheme simple structure, reasonable in design can realize the installation of push rod 2 and mount body 4 through whole body 6 to realize the reciprocates and the horizontal migration of push rod 2 on mount body 4, simple to operate.

Example 6

Based on embodiment 5, in this embodiment, the whole body 6 has a block structure, one end of the whole body is provided with a first opening that horizontally penetrates, and the other end of the whole body is provided with a second opening that vertically penetrates; the push rod 2 can be positioned horizontally penetrates through the first opening, and the fixing frame body 4 can be positioned vertically penetrates through the second opening.

This scheme simple structure, reasonable in design utilizes the special structure of whole body 6 to realize the installation of push rod 2 and mount body 4, can realize simultaneously that push rod 2 reciprocates and horizontal migration on mount body 4, simple to operate.

Besides the above embodiment, the whole body 6 can be provided with a vertical groove with two open ends and a transverse groove with two open ends, the fixing frame body 4 is in sliding connection with the vertical groove, and the push rod 2 is in sliding connection with the transverse groove.

Example 7

In this embodiment, on the basis of embodiment 6, a first screw hole communicated with the first opening is formed in the through body 6, a first locking screw 7 is connected to the first screw hole in an internal thread manner, and the first locking screw 7 is screwed until one end of the first locking screw abuts against or is separated from the push rod 2, so as to fix or release the push rod 2.

During operation, the first locking screw 7 can be manually screwed to one end of the first locking screw to be abutted or separated with the push rod 2 so as to fix or loosen the push rod 2, and the operation is simple and convenient, and time and labor are saved.

Based on the above scheme, the number of the locking screws 7 can be one or more, for example, two, and the specific number of the locking screws 7 is designed according to the requirement.

Example 8

In this embodiment, a second screw hole communicating with the second opening is formed in the body 6, a second locking screw 8 is screwed into the second screw hole, and the second locking screw 8 is screwed to one end of the second locking screw to abut against or separate from the fixing frame body 4, so as to fix or release the fixing frame body 4.

During operation, the second locking screw 8 can be manually screwed to one end of the second locking screw to be abutted against or separated from the fixed frame body 4 so as to fix or loosen the fixed frame body 4, and the operation is simple and convenient, and time and labor are saved.

Based on the above scheme, the number of the second locking screws 8 may be one or plural, for example, two, and the specific number of the second locking screws 8 may be designed according to the requirement.

Example 9

On the basis of the above embodiments, in this embodiment, the other end of the push rod 2 is provided with a handle 9.

This scheme simple structure, reasonable in design makes things convenient for manual operation push rod 2 to make push rod 2 horizontal migration through handle 9, easy and simple to handle, labour saving and time saving.

Preferably, in this embodiment, the handle 9 is preferably a push-pull ring, which may be fixedly connected or rotatably connected to the other end of the push rod 2.

Alternatively, the handle 9 may take other suitable geometric configurations, such as a frame shape.

Example 10

On the basis of the above embodiments, in this embodiment, the connector assembly includes a connector 10, one end of the connector 10 is detachably connected to one end of the push rod 2, and the other end is detachably connected to the safety valve 3.

During operation, the push rod and the safety valve 3 can be connected through the connector 10 so as to open the safety valve 3, and the assembly and the disassembly are convenient.

Based on the above-mentioned scheme, the above-mentioned connector 10 is in a rod-like structure, and one end thereof is provided with a thread section and is in threaded connection with a thread groove provided on one end of the push rod 2. The structure of the other end of the connector 10 is different depending on the structure of the opened safety valve 3:

scheme one; the other end of the connector 10 is smaller than one end of the connector and is provided with a through hole; the connecting end of the safety valve 3 is provided with a groove, and two sides of the groove are provided with through round holes relatively. When the pin is mounted, the other end of the connector 10 is inserted into the groove so that the through hole communicates with the two circular holes, then the pin 11 is inserted into the two circular holes and the through hole, and the pin block 12 is inserted into the one-end positioning hole of the pin 11 (see fig. 4 and 5).

Scheme II: the other end of the connector 10 is provided with a groove, and two sides of the groove are provided with through round holes relatively; the safety valve 3 is connected with a through hole. When the safety valve 3 is mounted, the connecting end of the safety valve is inserted into the groove so that the through hole communicates with the two circular holes, then the pin 11 is inserted into the two circular holes and the through hole, and the pin block 12 is inserted into the one end positioning hole of the pin 11 (see fig. 6 and 7).

The working principle of the utility model is as follows:

in operation, first, the base 5 is manually moved to a set position and positioned in the above manner, and the whole body 6 is manually moved to a set height and positioned in the above manner, so that the connector 10 is opposite to the corresponding safety valve 3; then, the push rod 2 is manually pushed so that the connector 10 can be connected with the connecting end on the safety valve 3; finally, the push rod 2 is manually pushed to open the safety valve 3.

The utility model solves the problems that test personnel are required to assist in opening the safety valve in the test process of the prior art, solves the problems that the safety valve opening modes are different and special tools are absent, and solves the problems that the existing safety valve opening mode is slow to install and low in efficiency.

The device has simple structure, convenient use and installation, solves the problem of lacking a special test device by using the simplest and most economical method, and improves the test efficiency. The simple interface is created, different types of tests can be completed, and the device is prospective and extremely high in universality.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A test device for opening mechanical multiway reversing valve relief valve, its characterized in that: the device comprises a test bed (1), a support frame and a push rod (2), wherein the support frame is arranged on the test bed (1) and can move horizontally and be positioned; the push rod (2) is horizontally arranged on the support frame, can move up and down and be positioned, and can move horizontally and be positioned; one end of the push rod (2) is provided with a connector assembly which is used for detachably connecting the safety valve (3).

2. The test device for opening a mechanical multiple way reversing valve safety valve of claim 1, wherein: the support frame comprises a fixing frame body (4), and the fixing frame body (4) is vertically arranged on the test bed (1) and can horizontally move and be positioned; the push rod (2) is arranged on the fixed frame body (4).

3. The test device for opening a mechanical multiple way reversing valve safety valve of claim 2, wherein: the fixing frame body (4) is of a square steel structure.

4. The test device for opening a mechanical multiple way reversing valve safety valve of claim 2, wherein: the support frame also comprises a base (5), wherein the base (5) is horizontally arranged on the test bed (1) and can horizontally move and be positioned; the fixing frame body (4) is vertically and fixedly arranged on the base (5).

5. The test device for opening a mechanical multiple-way reversing valve according to any one of claims 2 to 4, wherein: the fixing frame body (4) is provided with a whole body (6) which can move up and down and is positioned, and the push rod (2) is arranged on the whole body (6).

6. The test device for opening a mechanical multiple way reversing valve safety valve of claim 5, wherein: the whole body (6) is in a block structure, one end of the whole body is provided with a first opening which horizontally penetrates, and the other end of the whole body is provided with a second opening which vertically penetrates; the push rod (2) can be positioned horizontally penetrates through the first opening, and the fixing frame body (4) can be positioned vertically penetrates through the second opening.

7. The test device for opening a mechanical multiple-way reversing valve safety valve of claim 6, wherein: the whole body (6) is provided with a first screw hole communicated with the first opening, the first screw hole is internally and in threaded connection with a first locking screw (7), and the first locking screw (7) is screwed until one end of the first locking screw is abutted or separated from the push rod (2) so as to fix or loosen the push rod (2).

8. The test device for opening a mechanical multiple-way reversing valve safety valve of claim 6, wherein: the whole body (6) is provided with a second screw hole communicated with the second opening, the second screw hole is internally and in threaded connection with a second locking screw (8), and the second locking screw (8) is screwed until one end of the second locking screw is abutted or separated from the fixed frame body (4) so as to fix or loosen the fixed frame body (4).

9. The test device for opening a safety valve of a mechanical multiple-way reversing valve according to any one of claims 1 to 4, wherein: the other end of the push rod (2) is provided with a handle (9).

10. The test device for opening a safety valve of a mechanical multiple-way reversing valve according to any one of claims 1 to 4, wherein: the connector assembly comprises a connector (10), one end of the connector (10) is detachably connected with one end of the push rod (2), and the other end of the connector is detachably connected with the safety valve (3).