Valve remote transmission adapter capable of adjusting eccentricity

Abstract

The present application relates to the technical field of valve remote transmission mechanisms. Disclosed is a valve remote transmission adapter capable of adjusting eccentricity, comprising a fixed disc, a swing core shaft, and shifting forks. The swing core shaft is sleeved in the fixed disc; one end of each shifting fork is fixed to the swing core shaft, and the other end is movably connected to the fixed disc; the shifting forks and the fixed disc can move relative to each other in the radial and circumferential directions; and when the swing core shaft rotates, the shifting forks drive the fixed disc to rotate. By providing the swing core shaft on a traditional ordinary adapter, the valve remote transmission adapter capable of adjusting eccentricity provided by the present invention solves the eccentricity problem caused by installation or the like, can avoid the use of a universal joint or a coupling, thereby reducing the use cost, can solve the problems of narrow space, installation deviation and the like of a traditional remote transmission mechanism installation adapter, not only can have the adjustment function of the universal joint, but also can use an original use space, has a simple structure, and is reliable and durable.

Description

Adjustable valve remote adapter TECHNICAL FIELD

[0001] The present application relates to the technical field of valve remote mechanism, in particular to an adjustable valve remote adapter. BACKGROUND

[0002] The valve remote adapter is a connecting piece for connecting the transmission shaft of the valve remote mechanism with the valve hand wheel or valve rod. The valve remote mechanism is commonly used in the ship industry, nuclear power industry and petrochemical industry. These working conditions are usually narrow in space, and there are many valve pipes. During the installation process of the remote mechanism, it is difficult to ensure the installation concentricity during the connection of the remote mechanism and the valve due to various factor errors, and finally various problems such as abnormal operation sound, jamming, seizure, reduced transmission efficiency, and flexible shaft swing may occur.

[0003] Under such working conditions, if there is enough space, a universal joint or other coupling is generally added between the adapter and the remote mechanism to adjust the eccentricity problem. However, the addition of the universal joint or other coupling will affect the installation method, fixing method, connection method and cost of the remote mechanism, and in some working conditions, the space is too small to install the universal joint or the eccentric angle is greater than the adjustment angle of the universal joint.

[0004] Therefore, the present application designs an adjustable valve remote adapter, which can meet the use requirements when the working condition space is small and the eccentric angle is too large, without affecting the original installation method, fixing method, connection method, and with minimal impact on the cost. SUMMARY

[0005] In view of the above-mentioned deficiencies existing at present, the present application provides an adjustable valve remote adapter, which can solve the problems of small installation adapter space and installation deviation of the traditional remote mechanism, meet the use requirements when the working condition space is small and the eccentric angle is too large, has strong applicability, can reduce the use of universal joints or couplings, reduce the use cost, and has a simple structure, is reliable and durable.

[0006] To achieve the above-mentioned purpose, the embodiments of the present application adopt the following technical solutions:

[0007] An adjustable valve remote adapter, comprising a fixed disc, a swing core shaft and a shift fork, the swing core shaft is sleeved in the fixed disc, one end of the shift fork is fixed with the swing core shaft, and the other end is movably connected with the fixed disc, the shift fork and the fixed disc can move relatively in the radial and circumferential directions, and when the swing core shaft rotates, the fixed disc is driven to rotate by the shift fork.

[0008] According to one aspect of the present application, a plurality of connecting holes are provided on the fixed disc, and the shift fork is movably connected in the connecting hole. The shift fork can be extended and retracted relative to the connecting hole and can move along the length direction of the connecting hole.

[0009] According to one aspect of the present application, the fixed disc comprises a main disc body and a matched disc body, both of which are fixed, the swing spindle is sleeved in the matched disc body, and the connecting hole is arranged on the matched disc body.

[0010] According to one aspect of the present application, the connecting holes are uniformly distributed on the matched disc body in a circumferential direction.

[0011] According to one aspect of the present application, the main disc body is in a disc shape, and the matched disc body is in a hollow cylindrical shape, both of which are vertically fixed.

[0012] According to one aspect of the present application, the swing spindle and the shift fork are both in a columnar shape, and the connecting hole is in a strip hole shape.

[0013] According to one aspect of the present application, the fixed disc is fixed with a valve hand wheel or a valve rod, and the swing spindle is fixed with a remote transmission shaft.

[0014] According to one aspect of the present application, the fixed disc is regularly provided with a plurality of fixed holes, and the swing spindle is provided with a connecting insertion hole.

[0015] According to one aspect of the present application, the fixed disc is fixed with a valve hand wheel or a valve rod through a bolt, the bolt is connected with the fixed hole in a matched mode, the swing spindle is fixed with a remote transmission shaft through a bolt, and the bolt is connected with the connecting insertion hole in a matched mode.

[0016] The present application has the following advantages: when the valve hand wheel or the valve rod is not concentric with the remote transmission shaft, the remote transmission shaft will swing in the center of the adapter when the remote transmission mechanism is operated, the swing spindle will not be in the center of the fixed disc, the rotation torque of the remote transmission shaft is transmitted to the fixed disc through the shift fork connected with the swing spindle, and then transmitted to the valve hand wheel or the valve rod, so as to finally realize the opening or closing of the valve; in this way, the present application can reduce the use of universal joints or couplings, reduce the use cost, and solve the problems of narrow installation space and installation deviation of the traditional remote transmission mechanism installation adapter; the present application can have the function of the universal joint, can use the original space, has a simple structure, and is reliable and durable. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0018] Fig. 1 is a structural schematic view of the present application;

[0019] Fig. 2 is a structural schematic view of the present application when it is applied and installed.

[0020] The names corresponding to the numbers in the figures are as follows:

[0021] 1, fixed disc; 11, main disc body; 12, matching disc body; 2, swing mandrel; 21, connecting socket; 3, yoke; 4, connecting hole; 5, fixed hole; 6, valve hand wheel; 7, remote transmission shaft; 8, bolt; 9, bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0023] As shown in FIG. 1 and FIG. 2, a remote adapter of a center-adjustable valve is used to connect with a remote mechanism to realize the opening and closing of the valve. The adapter comprises a fixed disc 1, a swing mandrel 2 and a yoke 3. The fixed disc 1 is fixed with a valve hand wheel 6 or a valve rod, and the swing mandrel 2 is fixed with a remote transmission shaft 7. The fixed disc 1 comprises a vertically fixed main disc body 11 and a matching disc body 12. The main disc body 11 is disc-shaped, and a plurality of fixed holes 5 are regularly arranged on the circumference of the main disc body 11. The matching disc body 12 is hollow cylindrical, and a plurality of connecting holes 4 are evenly arranged on the circumference of the matching disc body 12. The connecting holes 4 are strip-shaped. The swing mandrel 2 is sleeved in the matching disc body 12 of the fixed disc 1, and the outer diameter of the swing mandrel 2 is smaller than the inner diameter of the matching disc body 12. The swing mandrel 2 is columnar, and a connecting socket 21 is arranged through the outer side of the swing mandrel 2. The yoke 3 is columnar or rod-shaped, and a plurality of yokes 3 are arranged. One end of each yoke 3 is fixed with the outer contour of the swing mandrel 2, and the other end of each yoke 3 is inserted into the connecting hole 4. The yoke 3 is movably connected with the connecting hole 4, and the yoke 3 can be extended and contracted relative to the connecting hole 4 and can move along the length direction of the connecting hole 4, that is, the yoke 3 or the swing mandrel 2 can move radially and circumferentially relative to the fixed disc 1. When the remote transmission shaft 7 drives the swing mandrel 2 to rotate, the fixed disc 1 is driven to rotate by the yoke 3, so as to drive the valve hand wheel 6 or the valve rod to rotate, thereby realizing the opening and closing of the valve.

[0024] In actual application, the connecting holes 4 are three, and are arranged on the circumferential contour of the matching disc body 12 at intervals of 120 degrees. The yokes 3 are evenly arranged on the outer contour of the swing mandrel 2 at intervals of 120 degrees, and the number and structure of the yokes 3 are matched with the number and structure of the connecting holes 4.

[0025] In practical application, the fixed disc 1 is fixed with the valve hand wheel 6 or valve stem through the bolt 8, that is, fixed through the cooperation and connection of the bolt 8 and the fixed hole 5. The swing shaft 2 is fixed with the remote transmission shaft 7 through the bolt 9, that is, fixed through the cooperation and connection of the bolt 9 and the connecting insertion hole 21.

[0026] The working principle of the present application is as follows:

[0027] When the valve hand wheel 6 or valve stem is eccentric with the remote transmission shaft 7, when the remote transmission mechanism is operated, the remote transmission shaft 7 will swing in the center of the adapter, that is, the swing shaft 2 will not be in the center of the fixed disc 1. The remote transmission shaft 7 is rotated and twisted through the shift fork 3 connected with the swing shaft 2, and the rotation and twist are transmitted to the fixed disc 1, and then to the valve hand wheel 6 or valve stem, so as to finally realize the opening or closing of the valve.

[0028] The advantages of the present application are as follows:

[0029] 1. The use of universal joint or coupling can be reduced, and the use cost can be reduced. The adapter can have the original adjusting function of the universal joint, and can also use the original space, without affecting the original installation method, fixing method and connection method, and with the minimum influence on the cost.

[0030] 2. The adapter can be used in a small space without increasing transmission components, and can solve the problems of small space and installation deviation of the traditional remote transmission mechanism installation adapter.

[0031] 3. The structure is simple, reliable and durable.

[0032] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the scope of the disclosed technology can be easily thought by those skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A remotely adjustable centering valve adapter, comprising: The utility model relates to a valve drive device, including fixed disc (1), swing mandrel (2), shift fork (3), swing mandrel (2) is set in fixed disc (1), shift fork (3) one end is fixed with swing mandrel (2), the other end is movably connected with fixed disc (1), shift fork (3) and fixed disc (1) can move relatively in radial and circumferential, when swing mandrel (2) rotates, drives fixed disc (1) to rotate through shift fork (3).

2. A remotely adjustable adapter for a valve as claimed in claim 1, wherein, The fixed disc (1) is provided with a plurality of connecting holes (4), the shift fork (3) is movably connected in the connecting hole (4), the shift fork (3) can be extended and contracted relative to the connecting hole (4) and can move along the length direction of the connecting hole (4).

3. A remotely adjustable adapter for a valve as claimed in claim 2, wherein, The fixed disc (1) includes main disc body (11) and matching disc body (12), and the two are fixed, the swing mandrel (2) is set in the matching disc body (12), and the connecting hole (4) is arranged on the matching disc body (12).

4. A remotely adjustable adapter for a valve as claimed in claim 3, wherein, The connecting hole (4) is evenly distributed on the matching disc body (12) in circumferential direction.

5. The remotely adaptable adapter for an aligning valve according to claim 3, wherein The main disc body (11) is discoid, the matching disc body (12) is hollow cylindrical, and the two are vertically fixed.

6. A remotely adjustable adapter for a valve as defined in claim 3, wherein The swing mandrel (2) and the shift fork (3) are both columnar, and the connecting hole (4) is strip-shaped hole.

7. The remotely accessible adapter for an aligning valve of claim 1, wherein, The fixed disc (1) is fixed with the valve hand wheel (6) or valve rod, and the swing mandrel (2) is fixed with the remote transmission shaft (7).

8. A remote adapter for an aligning valve according to claim 7, characterized in that The fixed disc (1) is regularly provided with a plurality of fixed holes (5), and the swing mandrel (2) is provided with a connecting insertion hole (21).

9. A remotely adjustable adapter for a valve as claimed in claim 8, wherein, The fixed disc (1) is fixed with the valve hand wheel (6) or valve rod through the bolt (8), the bolt (8) is connected with the fixed hole (5), the swing mandrel (2) is fixed with the remote transmission shaft (7) through the bayonet (9), and the bayonet (9) is connected with the connecting insertion hole (21).

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