Valve body open gear detection device

Abstract

The utility model discloses a valve body open gear detection device, and relates to the technical field of valve body inner cavity detection tools. The valve body opening detection device is used for measuring the opening size of a valve body, and the valve body is provided with a minimum opening position and a maximum opening position. The valve body open gear detection device comprises a measuring tool, two measuring heads and a bridge protection wheel. The measuring tool is provided with two measuring jaws which are oppositely arranged; the two measuring heads are respectively arranged on the two measuring claws; the two measuring heads are each provided with at least one bridge protection wheel, and the bridge protection wheels are suitable for driving the measuring heads to move to the minimum opening position or the maximum opening position during detection. The utility model provides a valve body opening detection device, which improves the stability and accuracy of opening dimension measurement of upper and lower openings of two inclined sealing surfaces of an inner cavity of a valve body, and is more convenient in dimension measurement.

Description

Technical Field

[0001] The utility model relates to the technical field of valve body cavity detection tools, in particular to a valve body opening detection device. Background Art

[0002] The gate valve is a common type of valve, which mainly controls the flow of fluid media by opening or closing the gate. The gate valve's opening and closing parts are gates, and the gate's movement direction is perpendicular to the fluid direction. The gate valve can only be fully opened or fully closed, and cannot be adjusted or throttled. The gate has two sealing surfaces. The most commonly used mode is that the two sealing surfaces of the gate valve form a wedge shape, and the wedge angle varies with the valve parameters.

[0003] The sealing pair of the wedge gate valve is composed of two sealing surfaces of the valve body and two sealing surfaces of the gate. The valve body sealing surface is welded to the seat ring in the inner cavity of the valve body. Its grinding cannot change the sealing surface angle, so the processing angle of the gate sealing surface needs to match the actual angle of the valve body one by one (commonly known as matching the door). It is particularly important to measure the opening size of the upper and lower ends of the two sealing inclined surfaces in the inner cavity of the valve body to calculate the actual angle.

[0004] In the prior art, an ordinary vernier caliper is generally used to directly measure the opening size. It is difficult to move the measuring jaws of the ordinary vernier caliper to the accurate measuring position during measurement, which makes the measurement inconvenient, and the stability and accuracy of the opening size measurement are not high. Utility Model Content

[0005] The main purpose of the utility model is to provide a method for improving the stability and accuracy of measuring the opening dimensions of the upper and lower openings of two inclined sealing surfaces in the inner cavity of a valve body, thereby enhancing the convenience of dimensional measurement.

[0006] To achieve the above object, the utility model provides a valve body opening detection device for measuring the opening size of the valve body, wherein the valve body has a minimum opening position and a maximum opening position, and the valve body opening detection device comprises:

[0007] A measuring tool having two measuring jaws arranged opposite to each other;

[0008] Two measuring heads are respectively arranged on the two measuring claws; and

[0009] Bridge protection wheel: at least one bridge protection wheel is provided on each of the two measuring heads, and the bridge protection wheel is suitable for driving the measuring heads to move to the minimum opening position or the maximum opening position during detection.

[0010] Optionally, the two measuring heads are detachably disposed on the two measuring claws respectively.

[0011] Optionally, the valve body opening detection device further includes a locking member, and the measuring heads are locked and fixed on the measuring claws through the locking member.

[0012] Optionally, the locking member includes a fixing frame and a locking pin or a screw, and the fixing frame abuts against or clamps one side of the measuring head and is locked by the locking pin or the screw.

[0013] Optionally, two bridge protection wheels are provided on the measuring head, and a line connecting the centers of the two bridge protection wheels is perpendicular to the corresponding measuring claws.

[0014] Optionally, the two measuring heads are respectively perpendicular to the corresponding measuring claws.

[0015] Optionally, the two measuring heads have two outer side surfaces which are arranged back to back, and the bridge protection wheels are both arranged on the outer side surfaces.

[0016] Optionally, both of the two measuring heads have a first measuring surface and a second measuring surface, the first measuring surface is suitable for matching with the abutting surface of the minimum opening position, and the second measuring surface is suitable for matching with the abutting surface of the maximum opening position.

[0017] Optionally, at least one of the measuring jaws may be relatively far away from or close to the other measuring jaw.

[0018] Optionally, the measuring tool is a combined digital caliper.

[0019] In the technical solution of the utility model, the valve body opening detection device is used to measure the opening size of the valve body, and the valve body has a minimum opening position and a maximum opening position; the valve body opening detection device includes a measuring tool, two probes and a bridge protection wheel; the measuring tool has two measuring claws arranged opposite to each other; the two probes are respectively arranged on the two measuring claws; both probes are provided with at least one bridge protection wheel, and the bridge protection wheel is suitable for driving the probe to move to the minimum opening position or the maximum opening position during detection. In this way, when measuring, the device can be moved to the minimum opening position (lower opening of the sealing surface) or the maximum opening position (upper opening of the sealing surface) through the bridge protection wheel, and combined with measuring tools such as a combined digital caliper to save the memory size value, the whole measurement process is more convenient. By adopting the above-mentioned valve body opening detection device, it is helpful to quickly move to the accurate measurement position, effectively improve the stability and accuracy of the opening size measurement of the upper and lower openings of the two inclined sealing surfaces in the inner cavity of the valve body, and the size measurement is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments 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.

[0021] Figure 1This is a schematic diagram of the measurement position of the inner cavity of the gate valve;

[0022] Figure 2 This is a schematic diagram of an embodiment of the valve body opening detection device of the utility model when measuring the minimum opening position;

[0023] Figure 3 It is a schematic diagram of measuring the maximum opening position in one embodiment of the valve body opening detection device of the utility model.

[0024] Description of Figure Numbers:

[0025] 100, valve body; 101, minimum opening position; 102, maximum opening position; 10, measuring tool; 20, measuring head; 30, bridge protection wheel; 40, locking piece; 11, measuring claw; 201, first measuring surface; 202, second measuring surface.

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] 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.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications 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.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, 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 technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] The utility model provides a valve body opening detection device, which can be used to measure the opening size of valve bodies such as gate valves, and the size is not limited.

[0032] Reference Figures 1 to 3 In one embodiment of the utility model, the valve body opening detection device is used to measure the opening size of the valve body 100, and the valve body 100 has a minimum opening position 101 and a maximum opening position 102; the valve body opening detection device includes a measuring tool 10, two measuring heads 20 and a bridge protection wheel 30; the measuring tool 10 has two oppositely arranged measuring claws 11; the two measuring heads 20 are respectively arranged on the two measuring claws 11; both measuring heads 20 are provided with at least one bridge protection wheel 30, and the bridge protection wheel 30 is suitable for driving the measuring head 20 to move to the minimum opening position 101 or the maximum opening position 102 during detection.

[0033] In this embodiment, at least one of the measuring jaws 11 on the measuring tool 10 can be relatively far away from or close to the other measuring jaw 11. The measuring tool 10 can preferably be a combined digital caliper with 4 function buttons. The probe 20 is a special measuring head for the corresponding measuring tool 10 or is adaptively designed based on the special measuring head, which is not limited here.

[0034] The bridge protection wheel 30 is a roller structure with a diameter greater than the width of the measuring head 20 , and can be installed on the side of the measuring head 20 through a rotating shaft or screws.

[0035] It can be understood that during measurement, the device can be moved to the minimum opening position 101 (lower opening of the sealing surface) or the maximum opening position 102 (upper opening of the sealing surface) through the bridge protection wheel 30, and combined with the measuring tool 10 such as the combined digital caliper to save the memory size value, the entire measurement process is more convenient. By adopting the above-mentioned valve body opening detection device, it is helpful to quickly move to the accurate measurement position, effectively improving the stability and accuracy of the opening size measurement of the upper and lower openings of the two inclined sealing surfaces of the inner cavity of the valve body 100, and the size measurement is more convenient.

[0036] To facilitate the replacement of the probe 20, refer to Figure 2 and Figure 3 In one embodiment, the two measuring heads 20 are detachably disposed on the two measuring jaws 11 .

[0037] In this embodiment, the valve body opening detection device may further include a locking member 40, and the probe 20 may be locked and fixed on the measuring jaw 11 through the locking member 40. In this way, the probe 20 can be easily disassembled and assembled, the efficiency of replacing the probe 20 is improved, and it is ensured that it can be firmly installed on the measuring jaw 11, so as to further ensure the accuracy of the measurement.

[0038] Specifically, the locking member 40 may include a fixing frame and a locking pin or screw. The fixing frame abuts against or clamps one side of the measuring head 20 and is locked by the locking pin or screw.

[0039] In order to further enable the probe 20 to quickly move to a more accurate measurement position, the main reference Figure 2 and Figure 3 In one embodiment, two bridge protection wheels 30 can be provided on the measuring head 20, and the center line of the two bridge protection wheels 30 is perpendicular to the corresponding measuring claws 11. In addition, in this embodiment, the two measuring heads 20 are perpendicular to the corresponding measuring claws 11 respectively.

[0040] When in use, the four bridge protection wheels 30 on the side surfaces of the probe 20 on the left and right sides of the measuring tool 10 can slide in a circle on the cavity wall of the inner cavity, and can quickly find the only extreme opening position.

[0041] In this embodiment, the two probes 20 have two outer side surfaces that are arranged back to back, and the bridge protection wheel 30 can be arranged on the outer side surface. This arrangement can adapt to the measurement environment of the gate valve inner cavity opening position, so that the bridge protection wheel 30 abuts against the cavity wall at the upper or lower opening of the valve body 100 sealing surface, and then the probe 20 is in the accurate minimum opening position 101 or maximum opening position 102, which is conducive to further improving the measurement accuracy.

[0042] In addition, in order to further improve the accuracy of the opening size measurement, based on the above embodiment, mainly referring to Figure 2 and Figure 3 Both probes 20 may have a first measuring surface 201 and a second measuring surface 202 , wherein the first measuring surface 201 is adapted to match the abutting surface of the minimum opening position 101 , and the second measuring surface 202 is adapted to match the abutting surface of the maximum opening position 102 .

[0043] That is to say, in this embodiment, the upper and lower measuring surfaces of the probe 20 meet the dimensional measurement of the upper and lower openings of the sealing surface of the valve body 100. The minimum opening position 101 (lower opening of the sealing surface) can be a small plane, and the maximum opening position 102 (upper opening of the sealing surface) is a knife-edge surface.

[0044] The above description is only an optional embodiment of the present invention, and does 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 inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A valve body opening detection device, used to measure the opening size of a valve body, wherein the valve body has a minimum opening position and a maximum opening position, characterized in that: The valve body opening detection device comprises: A measuring tool having two measuring jaws arranged opposite to each other; Two measuring heads are respectively arranged on the two measuring claws; and Bridge protection wheel: at least one bridge protection wheel is provided on each of the two measuring heads, and the bridge protection wheel is suitable for driving the measuring heads to move to the minimum opening position or the maximum opening position during detection.

2. The valve body opening detection device according to claim 1, characterized in that: The two measuring heads are respectively and detachably arranged on the two measuring claws.

3. The valve body opening detection device according to claim 2, characterized in that: The valve body opening detection device also includes a locking piece, and the measuring heads are locked and fixed on the measuring claws through the locking piece.

4. The valve body opening detection device according to claim 3, characterized in that: The locking member comprises a fixing frame and a locking pin or a screw. The fixing frame abuts against or clamps one side of the measuring head and is locked by the locking pin or the screw.

5. The valve body opening detection device according to claim 1, characterized in that: The measuring head is provided with two bridge protection wheels, and the connecting line of the centers of the two bridge protection wheels is perpendicular to the corresponding measuring claws.

6. The valve body opening detection device according to claim 5, characterized in that: The two measuring heads are respectively perpendicular to the corresponding measuring claws.

7. The valve body opening detection device according to claim 5, characterized in that: The two measuring heads are provided with two outer side surfaces which are arranged back to back, and the bridge protection wheels are arranged on the outer side surfaces.

8. The valve body opening detection device according to claim 1, characterized in that: The two measuring heads each have a first measuring surface and a second measuring surface, wherein the first measuring surface is adapted to match the abutting surface at the minimum opening position, and the second measuring surface is adapted to match the abutting surface at the maximum opening position.

9. The valve body opening detection device according to claim 1, characterized in that: At least one of the measuring jaws can be relatively far away from or close to the other measuring jaw.

10. The valve body opening detection device according to claim 1, characterized in that: The measuring tool is a combined digital caliper.

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