Sealing structure for wiring position of thermal instrument in power plant

Abstract

A power plant thermal instrument wiring position sealing structure provided by the present invention comprises a connector, one end of the connector is connected with a wire, one end of the connector away from the wire is provided with a conductive plug, the conductive plug is sleeved with a sealing seat, and the outer wall of the sealing seat is slidably sleeved with an annular sealing plate. A pressing assembly is arranged at the end, facing the connector, of the annular sealing plate, the pressing assembly is in sliding connection with the sealing seat, the outer wall of the sealing seat is sleeved with a protective sleeve, a locking groove is formed in the outer wall of the protective sleeve, and a locking assembly capable of being inserted into the locking groove is arranged on the pressing assembly. By arranging the annular sealing plate and the pressing assembly, after the conductive plug is inserted into the socket, the annular sealing plate is pressed on the surface of the socket through the pressing assembly, and the pressing assembly can stably lock and press the main sealing ring under the action of the locking assembly and the locking groove, so that long-time sealing of the space around the conductive plug is realized.

Description

Technical Field

[0001] The invention relates to the technical field of slag scooping machines in thermal power plants, and in particular to a sealing structure for a connection point of thermal instruments in a power plant. Background Art

[0002] In the prior art, the sealing structure of the thermal instrument connection point of a power plant is merely the fitting of a ring structure between the connection port and the charging pile, and the sealing effect is not ideal, which easily leads to water leakage and seepage problems on rainy days. Therefore, a sealing structure of the thermal instrument connection point of a power plant is designed to optimize the above problem. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To achieve the above-mentioned purpose, the present invention proposes a sealing structure for the connection point of thermal instruments in a power plant, comprising a connector, one end of which is connected to an electric wire, an end of which is away from the electric wire and provided with a conductive plug, a sealing seat is sleeved on the conductive plug, an annular sealing plate is slidably sleeved on the outer wall of the sealing seat, a clamping assembly is arranged toward one end of the annular sealing plate, the clamping assembly is slidably connected to the sealing seat, a protective sleeve is sleeved on the outer wall of the sealing seat, a locking groove is arranged on the outer wall of the protective sleeve, and a locking assembly that can be inserted into the locking groove is arranged on the clamping assembly.

[0005] The present invention provides an annular sealing plate and a pressing assembly. After the conductive plug is inserted into the socket, the annular sealing plate is pressed against the socket surface by the pressing assembly. The pressing assembly can stably lock and press the main sealing ring due to the action of the locking assembly and the locking groove, thereby realizing long-term sealing of the space around the conductive plug.

[0006] Optionally, the clamping assembly includes an integrally arranged sliding sealing ring and a sliding cover, the sliding sealing ring is arranged on a side facing the main sealing ring, the sliding cover is arranged on a side facing the connecting head of the sliding sealing ring, and the sliding cover is provided with a through hole for the sealing seat to pass through.

[0007] Furthermore, the locking assembly includes a groove arranged on the inner wall of the through hole, a first spring is fixedly provided on the inner wall of the groove facing the locking groove toward the locking groove, and a locking tongue is fixedly provided on one end of the first spring toward the locking groove.

[0008] Furthermore, an extension rod is provided at one end of the lock tongue facing away from the locking groove, an unlocking hole for the extension rod to pass through the sliding cover is provided at one end of the groove facing away from the lock tongue, and an unlocking handle is fixedly connected to one end of the extension rod extending out of the unlocking hole.

[0009] Furthermore, a movable groove is provided on the side wall of the sealing seat along the insertion direction of the conductive plug, the movable groove is provided through the locking groove, and the locking tongue is provided in sliding connection with the movable groove.

[0010] Further, a plurality of buffer components are arranged between the movable sealing ring and the main sealing ring, and the buffer components include an inner slide cylinder, an outer slide cylinder and a second spring;

[0011] The inner slide cylinder is fixedly arranged on the end wall of the main sealing ring facing the movable sealing ring;

[0012] The outer sliding cylinder is fixedly arranged on the end wall of the movable sealing ring facing the main sealing ring;

[0013] The outer slide cylinder of each buffer assembly is sleeved on the outer side of the inner slide cylinder, and the outer slide cylinder and the inner slide cylinder are slidably connected;

[0014] A second spring is arranged between the inner slide cylinder and the outer slide cylinder of each buffer assembly.

[0015] Furthermore, a slide groove is arranged on the side wall of the outer slide cylinder, and a slider is arranged on the side wall of the inner slide cylinder to cooperate with the slide groove, and the slider is slidably connected to the slide groove.

[0016] Furthermore, a limit stopper is provided at one end of the slide groove facing the inner slide cylinder.

[0017] Furthermore, an insulating sealing layer is provided on the side of the sealing seat facing the conductive plug.

[0018] Furthermore, the main sealing ring is configured as an insulating member.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 It is a schematic diagram of the overall structure of a sealing structure at the connection point of thermal instruments in a power plant according to the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the local enlarged structure of part a;

[0023] Figure 3 yes Figure 1 A schematic diagram of the local enlarged structure of part b;

[0024] Figure 4 It is a schematic diagram of the inner slide cylinder and the outer slide cylinder structure of the sealing structure of the connection point of the thermal instrument in a power plant according to the present invention, and is intended to show the structure of the slide groove, the slider and the limit stopper;

[0025] Figure 5 The present invention is a structural schematic diagram of a compression assembly and a main sealing ring of a sealing structure at a connection point of a thermal instrument in a power plant.

[0026] Description of reference numerals:

[0027] 1. Connector; 2. Clamping assembly; 21. Sliding sealing ring; 22. Sliding cover; 3. Main sealing ring; 4. Conductive plug; 5. Sealing seat; 6. Moving groove; 7. Groove; 8. First spring; 9. Lock tongue; 10. Locking groove; 11. Inner slide cylinder; 111. Sliding block; 12. Outer slide cylinder; 121. Sliding groove; 122. Limit block; 13. Second spring; 14. Protective cover; 15. Wire; 16. Insulating sealing layer; 17. Extension rod; 171. Unlocking handle. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The present invention proposes a sealing structure for the connection of thermal instruments in a power plant. Figures 1 to 5 Elaborate in detail.

[0030] A sealing structure for the connection point of thermal instruments in a power plant, comprising a connector, one end of which is connected to an electric wire, an end of which is away from the electric wire and provided with a conductive plug, a sealing seat is sleeved on the conductive plug, an annular sealing plate is slidably sleeved on the outer wall of the sealing seat, a clamping assembly is arranged on the end of the annular sealing plate facing the connector, the clamping assembly is slidably connected to the sealing seat, a protective sleeve is sleeved on the outer wall of the sealing seat to protect the main body of the sealing seat and reduce the probability of the sealing seat being oxidized or damaged by external debris due to long-term exposure to the air, a locking groove is arranged on the outer wall of the protective sleeve, and a locking assembly that can be inserted into the locking groove is arranged on the clamping assembly.

[0031] The present invention provides an annular sealing plate and a pressing assembly. After the conductive plug is inserted into the socket, the annular sealing plate is pressed against the socket surface by the pressing assembly. The pressing assembly can stably lock and press the main sealing ring due to the action of the locking assembly and the locking groove, thereby realizing long-term sealing of the space around the conductive plug.

[0032] In some embodiments, the clamping assembly includes an integrally arranged sliding sealing ring and a sliding cover, wherein the sliding sealing ring is arranged on the side facing the main sealing ring, and the sliding cover is arranged on the side facing the connector of the sliding sealing ring, and a through hole is arranged on the sliding cover for the sealing seat to pass through. When the main sealing ring is pressed against the surface of the socket, it is inconvenient to arrange the locking assembly and the locking groove if the locking groove and the locking assembly are arranged too close to the edge of the sealing seat. Therefore, the clamping assembly is arranged as an integrally arranged sliding sealing ring and the sliding cover, and the cross section of the sliding cover is arranged in a U shape. When the sliding sealing ring has compressed the main sealing ring, the side of the sliding cover facing away from the main sealing ring is still at a sufficient distance from the edge of the sealing seat so as not to eat the locking groove and the locking mechanism.

[0033] In some embodiments, the locking assembly includes a groove disposed on the inner wall of the through hole, a first spring is fixedly disposed on the inner wall of the groove facing the locking groove in the direction of the locking groove, and a locking tongue is fixedly disposed on one end of the first spring facing the locking groove. When the locking tongue moves to a position facing the locking groove, the first spring bounces the locking tongue into the locking groove, so that the locking tongue can be blocked between the locking groove and the groove, completing the action of preventing the sliding cover from resetting and moving. In addition, the length of the locking tongue must be greater than the depth of the locking groove to ensure that the locking tongue will not be fully inserted into the locking groove, causing the sliding cover to still be able to reset and move.

[0034] In some embodiments, an extension rod is provided at one end of the lock tongue facing away from the locking groove, an unlocking hole for the extension rod to pass through the sliding cover is provided at one end of the groove facing away from the lock tongue, and an unlocking handle is fixedly connected to the unlocking hole at one end of the extension rod. When the connector is unplugged, the main sealing ring is no longer required to work, and the clamping assembly needs to be unlocked. At this time, the lock tongue can be driven out of the locking groove by pulling the unlocking handle, and then the lock tongue can be dislocated with the locking groove by moving the sliding cover, thereby completing the unlocking.

[0035] In some embodiments, a movable groove is provided on the side wall of the sealing seat along the insertion direction of the conductive plug, the movable groove is provided through the locking groove, and the locking tongue is provided in sliding connection with the movable groove.

[0036] The setting of the movable groove can play a guiding role, facilitating the normal displacement of the lock tongue into the locking groove, and avoiding the situation where the lock tongue cannot align with the locking groove.

[0037] In some embodiments, a plurality of buffer components are arranged between the movable sealing ring and the main sealing ring, and the buffer components include an inner slide cylinder, an outer slide cylinder and a second spring;

[0038] The inner slide cylinder is fixedly arranged on the end wall of the main sealing ring facing the movable sealing ring;

[0039] The outer sliding cylinder is fixedly arranged on the end wall of the movable sealing ring facing the main sealing ring;

[0040] The outer slide cylinder of each buffer assembly is sleeved on the outer side of the inner slide cylinder, and the outer slide cylinder and the inner slide cylinder are slidably connected;

[0041] A second spring is arranged between the inner slide cylinder and the outer slide cylinder of each buffer assembly.

[0042] The sliding setting of the inner slide cylinder and the outer slide cylinder can provide sufficient expansion and contraction space for the second spring, which can play a buffering role between the movable sealing ring and the main sealing ring on the one hand; on the other hand, when the main sealing ring is pressed onto the socket, since the second spring is in a compressed state, the second spring can apply pressure to the main sealing ring while providing a certain movement margin for the main sealing ring. When the main sealing ring produces irresistible vibration due to external force, the second spring can absorb the vibration and compress the main sealing ring again, reducing the impact of the vibration on the connector, thereby reducing the possibility of the conductive plug being detached from the socket due to the vibration of the connector.

[0043] In some embodiments, a slide groove is provided on the side wall of the outer slide cylinder, and a slider is provided on the side wall of the inner slide cylinder to match the slide groove, and the slider is slidably connected to the slide groove. The slide groove and the slider can play a guiding role, avoiding rotational dislocation of the inner slide cylinder and the outer slide cylinder during movement, and ensuring that the second springs in the inner slide cylinder and the outer slide cylinder can work normally.

[0044] In some embodiments, a limit stopper is provided at one end of the slide groove toward the inner slide cylinder. The setting of the limit stopper can prevent the slider from detaching from the slide groove, resulting in the separation and misalignment of the inner slide cylinder and the outer slide cylinder.

[0045] In some embodiments, an insulating sealing layer is provided on the side of the sealing seat facing the conductive plug. The provision of the insulating sealing layer can more stably seal the space near the conductive plug, and avoid the failure to seal the area near the conductive plug when the main sealing ring is damaged. It plays a secondary sealing barrier role and a sealing barrier insurance role.

[0046] In some embodiments, the main sealing ring is configured as an insulating member. When the conductive plug leaks electricity, the configuration of the insulating member can block the current transmission and avoid the leakage effect on the surrounding environment.

[0047] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A sealing structure for the connection of thermal instruments in a power plant, comprising a connector, one end of which is connected to an electric wire, and an end of which is away from the electric wire and is provided with a conductive plug, characterized in that: A sealing seat is sleeved on the conductive plug, an annular sealing plate is slidably sleeved on the outer wall of the sealing seat, a clamping assembly is arranged on one end of the annular sealing plate facing the connector, the clamping assembly is slidably connected to the sealing seat, a protective sleeve is sleeved on the outer wall of the sealing seat, a locking groove is arranged on the outer wall of the protective sleeve, and a locking assembly which can be inserted into the locking groove is arranged on the clamping assembly.

2. A sealing structure for the connection point of thermal instruments in a power plant as claimed in claim 1, characterized in that: The clamping assembly includes an integrally arranged sliding sealing ring and a sliding cover. The sliding sealing ring is arranged on a side facing the main sealing ring, and the sliding cover is arranged on a side facing the connecting head of the sliding sealing ring. The sliding cover is provided with a through hole for the sealing seat to pass through.

3. A sealing structure for the connection point of thermal instruments in a power plant as claimed in claim 2, characterized in that: The locking assembly comprises a groove arranged on the inner wall of the through hole, a first spring is fixedly arranged on the inner wall of the groove facing the locking groove towards the locking groove, and a locking tongue is fixedly arranged on one end of the first spring towards the locking groove.

4. A sealing structure for the connection point of thermal instruments in a power plant as claimed in claim 3, characterized in that: An extension rod is arranged at one end of the lock tongue facing away from the locking groove, an unlocking hole for the extension rod to pass through the sliding cover is arranged at one end of the groove facing away from the lock tongue, and an unlocking handle is fixedly connected to one end of the extension rod extending out of the unlocking hole.

5. A sealing structure for the connection point of thermal instruments in a power plant as claimed in claim 4, characterized in that: A movable groove is arranged on the side wall of the sealing seat along the insertion direction of the conductive plug, the movable groove is arranged through the locking groove, and the locking tongue is arranged in sliding connection with the movable groove.

6. A sealing structure for the connection point of thermal instruments in a power plant as claimed in claim 2, characterized in that: A plurality of buffer components are arranged between the movable sealing ring and the main sealing ring, and the buffer components include an inner slide cylinder, an outer slide cylinder and a second spring; The inner slide cylinder is fixedly arranged on the end wall of the main sealing ring facing the movable sealing ring; The outer sliding cylinder is fixedly arranged on the end wall of the movable sealing ring facing the main sealing ring; The outer slide cylinder of each buffer assembly is sleeved on the outer side of the inner slide cylinder, and the outer slide cylinder and the inner slide cylinder are slidably connected; A second spring is arranged between the inner slide cylinder and the outer slide cylinder of each buffer assembly.

7. A sealing structure for the connection point of thermal instruments in a power plant as claimed in claim 6, characterized in that: A sliding groove is arranged on the side wall of the outer sliding cylinder, and a sliding block is arranged on the side wall of the inner sliding cylinder to match the sliding groove, and the sliding block is slidably connected with the sliding groove.

8. A sealing structure for the connection point of thermal instruments in a power plant as claimed in claim 7, characterized in that: A limited stopper is arranged at one end of the slide groove facing the inner slide cylinder.

9. A sealing structure for a thermal instrument connection point in a power plant as claimed in claim 1, characterized in that: The sealing seat is provided with an insulating sealing layer on the side facing the conductive plug.

10. A sealing structure for a thermal instrument connection point in a power plant as claimed in claim 1, characterized in that: The main sealing ring is configured as an insulating member.

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