Electric single-seat regulating valve

Abstract

The utility model discloses an electric single-seat regulating valve which comprises an electric regulating valve body and is characterized by further comprising an actuating mechanism protective cover installed above the electric regulating valve body, and a groove is longitudinally formed in the surface of the actuating mechanism protective cover. A supporting sleeve which is embedded in the groove and can move up and down is installed on the outer surface of the executing mechanism protective cover and located below the executing mechanism protective cover. According to the electric single-seat adjusting valve, when a fastener is detached, the lower end of a screwdriver penetrates through the spacer sleeve and then rotates the fastener, the supporting sleeve can continuously ascend under the upward pulling action of the spring along with continuous rotating and ascending of the fastener, and therefore the lower end of the fastener can be assisted to be better separated from an installation position, and the fastener can be detached from the installation position. The fastening piece can be clamped until the supporting sleeve lifts the fastening piece to make contact with the spacer sleeve of the limiting piece, so that the disassembled fastening piece can be stably placed, and follow-up direct installation is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of governing valve, especially a kind of electric single seat governing valve. BACKGROUND

[0002] Electric single seat governing valve has the characteristics of small pressure drop loss, large flow, high flow characteristic precision and wide adjustable range, and is suitable for occasions with small working condition pressure difference. It is an important control element in industrial automation and is widely used in chemical industry, petroleum, electric power, metallurgy, food, light textile and other industries. However, the top of the electric single seat governing valve is provided with an actuator protective cover, which is installed and fixed by fasteners. When the actuator protective cover is disassembled, the fasteners need to be stored and placed to avoid loss. When the actuator protective cover is installed again, the fasteners need to be placed in the installation position of the actuator protective cover and then rotated and fixed, which is troublesome. UTILITY MODEL CONTENTS

[0003] The main purpose of the utility model is to provide an electric single seat governing valve, which can effectively solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0005] An electric single seat governing valve comprises an electric governing valve body, characterized in that an actuator protective cover is installed above the electric governing valve body, a groove is longitudinally formed on the surface of the actuator protective cover, a support sleeve that can move up and down is embedded in the groove and installed on the outer surface of the actuator protective cover below, a fastener that fixes the actuator protective cover to the electric governing valve body is embedded in the support sleeve, and a limiting piece that can move up and down is installed on the surface of the actuator protective cover above the fastener.

[0006] Further preferably, a rod groove is formed on the inner side surface below the groove, a guide rod is installed in the rod groove, a spring that has an upward pulling force on the support sleeve is sleeved on the surface of the guide rod, and a limiting sliding groove that limits the limiting piece is longitudinally formed on the inner rear surface of the groove close to the lower part.

[0007] Further preferably, the limiting piece comprises a sleeve ring that is sleeved on the actuator protective cover, a stop sleeve that is installed on the inner surface of the sleeve ring and embedded in the groove, and a limiting sliding block that is installed on the rear surface of the stop sleeve and embedded in the limiting sliding groove.

[0008] Further preferably, the number of stop sleeves is four, and the four stop sleeves are distributed in a matrix type on the inner surface of the sleeve ring.

[0009] Compared with the prior art, the electric single-seat regulating valve has the following beneficial effects:

[0010] In the utility model, when the fastener is disassembled, the lower end of the screwdriver rotates the fastener after passing through the baffle, and with the continuous rotation and rising of the fastener, the sleeve will continuously rise under the pulling action of the spring, so that the lower end of the fastener can be better separated from the installation position, until the sleeve holds the fastener and contacts the baffle of the limiting piece, so that the fastener can be clamped, thereby the disassembled fastener can be stably placed, and after the fastener is disassembled, the sleeve rising to a certain height clamps the fastener after contacting the limiting piece, so that the fastener can be stored and placed, and the disassembled fastener is prevented from being lost, and since the fastener is clamped, subsequent direct installation and use are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a whole structure diagram of the electric single-seat regulating valve of the utility model;

[0012] Figure 2 It is a whole structure diagram of the electric single-seat regulating valve of the utility model; Figure 1 It is an enlarged view of A in the middle;

[0013] Figure 3 It is a limiting piece structure diagram of the electric single-seat regulating valve of the utility model.

[0014] In the drawing: 1, electric regulating valve main body; 2, actuator protection cover; 201, recess; 202, limiting sliding groove; 203, rod groove; 204, guide rod; 205, spring; 3, limiting piece; 301, sleeve ring; 302, baffle; 303, limiting sliding block; 4, sleeve; 5, fastener. DETAILED DESCRIPTION

[0015] The utility model will be further explained in detail in combination with the drawings and specific embodiments. The embodiments of the utility model are given for example and description, and are not exhaustive or limit the utility model to the disclosed forms. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the utility model, and enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

[0016] As Figures 1-3As shown, an electric single-seat regulating valve comprises an electric regulating valve body 1, further comprising an actuator protective cover 2 installed above the electric regulating valve body 1, the surface of the actuator protective cover 2 is longitudinally provided with a groove 201, the outer surface of the actuator protective cover 2 and below is provided with a holder 4 embedded in the groove 201 and movable up and down, the holder 4 is embedded with a fastener 5 for fixing the actuator protective cover 2 on the electric regulating valve body 1, the surface of the actuator protective cover 2 and above the fastener 5 is provided with a limiting piece 3 movable up and down.

[0017] In the above structure, after the fastener 5 is disassembled, the spring 205 pulls the holder 4 up until the holder 4 drives the fastener 5 to rise and contact the limiting piece 3, at this time the fastener 5 is located between the holder 4 and the limiting piece 3, and the limiting slide block 303 and the limiting slide groove 202 have a certain friction force, so after the fastener 5 contacts the limiting piece 3, the force of the spring 205 cannot overcome the friction force between the limiting slide block 303 and the limiting slide groove 202 to make the fastener 5 continue to rise, so the limiting piece 3 and the holder 4 form a clamping state of the fastener 5, which can effectively place the disassembled fastener 5.

[0018] In a preferred embodiment: the inside of both sides of the groove 201 and below is provided with a rod groove 203, the inside of the rod groove 203 is provided with a guide rod 204, the surface of the guide rod 204 is provided with a spring 205 which has an upward pulling force on the holder 4, the rear surface of the inside of the groove 201 and close to the lower side is longitudinally provided with a limiting slide groove 202 which has a limiting effect on the limiting piece 3.

[0019] In the above structure, the spring 205 has an upward pulling force on the holder 4, so that during the process of disassembling the fastener 5, the holder 4 can assist the fastener 5 to rise, because when the fastener 5 is installed, it will be inserted into the holder 4 until the lower end of the fastener 5 is embedded in the electric regulating valve body 1, so that the installation of the actuator protective cover 2 can be completed, and the holder 4 needs to be pressed down when the fastener 5 is installed, so that the spring 205 will be pulled down when the holder 4 is pulled down, so that the spring 205 is stretched, and the force here is mutual, so the spring 205 has an upward pulling force on the holder 4, so that when the fastener 5 is disassembled, the spring 205 will pull the holder 4 up, so as to obtain the state that the holder 4 assists the fastener 5 to rise.

[0020] In a preferred embodiment: the limiting piece 3 comprises a sleeve ring 301 sleeved on the actuator protective cover 2, a stop sleeve 302 installed on the inner surface of the sleeve ring and embedded in the groove, and a limiting slide block 303 installed on the rear surface of the stop sleeve 302 and embedded in the limiting slide groove 202.

[0021] In the structure, the limiting slider 303 and the limiting sliding groove 202 have a certain friction force, so that the limiting member 3 will not slide when the actuator protective cover 2 is inverted, so that the limiting member 3 and the sleeve 4 can stably clamp the fastener 5. When the clamped fastener 5 needs to be taken out, the limiting member 3 is lifted, and then the fastener 5 can be taken out from the sleeve 4. Because the fastener 5 is clamped by the sleeve 4 and the limiting member 3 after being disassembled, the clamped fastener 5 can only be pulled up to provide enough space for the fastener 5 to be taken out from the sleeve 4.

[0022] The number of the blocking sleeves 302 is four, and the four blocking sleeves 302 are distributed in a matrix type on the inner surface of the sleeve ring 301.

[0023] In use, when the fastener 5 is disassembled, the lower end of the screwdriver rotates the fastener 5 after penetrating the blocking sleeve 302. With the continuous rotation and lifting of the fastener 5, the sleeve 4 will continuously rise under the pulling action of the spring 205. This can assist the lower end of the fastener 5 to better separate from the installation position, until the sleeve 4 lifts the fastener 5 to contact the blocking sleeve 302 of the limiting member 3, so as to clamp the fastener 5, thereby stably placing the disassembled fastener 5, which facilitates subsequent direct installation.

[0024] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electric single-seat regulating valve, comprising an electric regulating valve body (1), characterized in that an actuator protective cover (2) is installed above the electric regulating valve body (1), a groove (201) is longitudinally formed on the surface of the actuator protective cover (2), a support sleeve (4) is embedded in the groove (201) and is movable up and down on the outer surface of the actuator protective cover (2), a fastener (5) is embedded in the support sleeve (4) and is used to fix the actuator protective cover (2) to the electric regulating valve body (1), and a limiting piece (3) is installed on the surface of the actuator protective cover (2) above the fastener (5) and is movable up and down.

2. The electrically operated single seat regulator valve of claim 1, wherein: The inner side surfaces of the groove (201) are provided with a rod groove (203) below, the rod groove (203) is internally provided with a guide rod (204), the surface of the guide rod (204) is sleeved with a spring (205) which has an upward pulling force on the support sleeve (4), and a limiting sliding groove (202) is longitudinally formed on the rear surface of the groove (201) below.

3. The electrically operated single seat regulator valve of claim 2, wherein: The limiting piece (3) comprises a sleeve ring (301) sleeved on the actuator protective cover (2), a blocking sleeve (302) installed on the inner surface of the sleeve ring and embedded in the groove, and a limiting sliding block (303) installed on the rear surface of the blocking sleeve (302) and embedded in the limiting sliding groove (202).

4. The electrically operated single seat regulator valve of claim 3, wherein: The number of the blocking sleeves (302) is four, and the four blocking sleeves (302) are distributed in a matrix type on the inner surface of the sleeve ring (301).

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