Low-voltage insulating sleeve device

Abstract

The utility model belongs to the technical field of insulating sleeves, and particularly relates to a low-voltage insulating sleeve device, which comprises a base, a ceramic tube is mounted on the base, a through hole is formed in the middle of the ceramic tube, and a guide rod is arranged in the through hole; the cavity is arranged on the base and is positioned below the porcelain tube; the clamping structure is arranged in the cavity and comprises clamping parts, limiting grooves and a driving structure, the clamping parts are symmetrically arranged in the cavity and are movably arranged, the limiting grooves are formed in the outer wall of the porcelain tube, the clamping parts can be clamped into the limiting grooves, the driving structure is arranged in the cavity and is connected with the clamping parts, and the driving structure is arranged in the cavity and is connected with the clamping parts. The driving part is used for driving the symmetrically-arranged clamping parts to get close to or away from each other; wherein the limiting groove is arranged in an annular shape. And the effect of improving the mounting efficiency of the porcelain tube is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of insulating sleeves, and particularly relates to a low-voltage insulating sleeve device. Background Art

[0002] In the power system, a transformer is a key device for connecting and converting different voltage levels, and a low-voltage insulating sleeve is one of the crucial components in the transformer. The main function of the low-voltage insulating sleeve is to provide electrical insulation for the low-voltage side of the transformer, prevent electrical short circuits and electric leakage, and ensure the safety of personnel and equipment. Although the working pressure is relatively low, the low-voltage insulating sleeve still needs to have good mechanical strength, electrical insulation performance and environmental adaptability.

[0003] Chinese Utility Model Patent CN220357941 U discloses a transformer insulator, including a mounting base. A knob is rotatably connected to the top of the mounting base. A rotating rod is fixedly connected to the bottom of the knob. A convex block is fixedly connected to one end of the rotating rod. A sliding plate is slidably connected to the outer wall of the convex block. A sleeve rod is fixedly connected to the inside of the mounting base. A receiving plate is fixedly connected to the outer wall of the sliding plate. A plug rod is fixedly connected to the outer wall of the receiving plate. By rotating the knob of the present utility model, the rotating rod can be rotated to drive the convex block to rotate. Since the sliding plate is slidably connected to the outer wall of the convex block, the sliding plate can slide along the sleeve rod, so that the plug rod fixedly connected to the outer wall of the receiving plate moves, and the insulating sleeve is moved and inserted into the slot. After releasing the knob, the plug rod can be snapped into the limiting hole under the action of the spring for limiting, achieving the effect of facilitating the installation of the insulating sleeve, and thus improving the installation efficiency of the insulator.

[0004] When installing the insulating sleeve, it is necessary to insert the plug rod into the limiting hole to limit the insulating sleeve. However, during installation, the plug rod and the limiting hole are prone to deviation, resulting in the plug rod being difficult to insert into the limiting slot, which affects the installation efficiency. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a low-voltage insulating sleeve device for the above-mentioned existing technical problems, achieving the effect of improving the installation efficiency of the insulating sleeve.

[0006] In view of this, the present utility model provides a low-voltage insulating sleeve device, including: a base, on which a porcelain tube is installed. A perforation is provided in the middle of the porcelain tube, and a guide rod is arranged in the perforation;

[0007] Characterized in that it further includes:

[0008] A cavity, which is arranged on the base and is located below the porcelain tube;

[0009] A clamping structure, which is arranged in the cavity, and the clamping structure includes:

[0010] The clamping part is symmetrically arranged in the cavity and is movably arranged.

[0011] The limiting groove is formed on the outer wall of the porcelain tube, and the clamping part can be clamped into the limiting groove.

[0012] The driving structure is arranged in the cavity and is connected to the clamping part to drive the symmetrically arranged clamping parts to approach or move away from each other.

[0013] Among them, the limiting groove is annularly arranged.

[0014] In this technical solution, the driving structure can drive the clamping parts to approach or move away from each other, achieving the effect of fixing or loosening the porcelain tube. The annularly arranged limiting groove can facilitate the cooperation with the clamping part, which is beneficial to improving the installation efficiency.

[0015] In the above technical solution, further, the clamping part includes:

[0016] The push plates are symmetrically arranged in the cavity, and protrusions are symmetrically arranged on both the top and bottom surfaces of the push plates.

[0017] The first sliding grooves are symmetrically arranged on the upper and lower surfaces of the cavity, and the protrusions are slidably arranged in the first sliding grooves.

[0018] The clamping members are arranged on the side of the push plate close to the porcelain tube, and connecting rods are arranged between the clamping members and the push plates.

[0019] Among them, the clamping members can be clamped into the limiting groove, and the driving structure is connected to the side of the push plate away from the porcelain tube.

[0020] In this technical solution, the driving structure can push the symmetrically arranged push plates to approach or move away from each other along the direction of the first sliding grooves, so that the clamping members are clamped into or disengaged from the limiting groove, which is beneficial to improving the efficiency of installing or disassembling the porcelain tube.

[0021] In the above technical solution, further, the driving structure includes:

[0022] The first telescopic rods are arranged between the side of the push plate away from the porcelain tube and the inner wall of the cavity and are symmetrically arranged.

[0023] The guide plates are arranged on the side of the push plates and are on the same side as the first telescopic rods. Guide grooves are obliquely formed on the guide plates.

[0024] The second telescopic rod is horizontally arranged in the cavity, and a sliding rod is fixedly arranged on the outer wall.

[0025] Among them, the sliding rod is slidably arranged in the guiding groove, and a pushing structure is arranged in the horizontal direction of the axis of the first telescopic rod. The pushing structure is used to drive the second telescopic rod to move, and a spring is sleeved on the first telescopic rod. The inclination angles of the guiding grooves on the symmetrically arranged guiding plates are opposite.

[0026] In this technical solution, the pushing structure can push the second telescopic rod to expand and contract, so that the sliding rod fixed on the outer wall of the second telescopic rod moves, enabling the guiding groove to guide the guiding plate to move, thereby achieving the purpose of controlling the clamping part to clamp or release the porcelain tube. This is beneficial to improving the installation efficiency. In the normal working state, the push plate cooperates with the first telescopic rod through the spring, so that the clamping part is always stuck in the limiting groove, which is beneficial to improving the working stability.

[0027] In the above technical solution, further, the pushing structure includes:

[0028] A moving block, which is movably arranged in the cavity, and convex blocks are arranged on both the upper and lower surfaces;

[0029] Second sliding grooves, which are symmetrically arranged horizontally in the cavity, and the convex blocks are slidably arranged in the second sliding grooves;

[0030] An inclined surface, which is arranged on the moving block and is set away from the second telescopic rod;

[0031] A push block, which is arranged above the moving block and is used to push the moving block to move;

[0032] A push rod, which penetrates the upper surface of the base and is connected to the top surface of the push block.

[0033] In this technical solution, by pushing the push rod, the push block can cooperate with the inclined surface arranged on the moving block, enabling the moving block to move along the second sliding groove, thereby driving the clamping part to move. And after canceling the thrust applied to the push rod, through the cooperation of the spring, the push plate, and the guiding groove, the pushing structure can be reset, which is beneficial to improving the efficiency of installing or disassembling the porcelain tube.

[0034] In the above technical solution, further, the clamping member is in a semi-circular ring shape, and a flat surface is arranged on the inner wall of the semi-circular ring, and the limiting groove is matched with it.

[0035] In this technical solution, the flat surfaces arranged on the inner wall of the semi-circular ring and in the limiting groove can be in mutual contact, which can reduce the phenomenon of the porcelain tube rotating after being installed on the base.

[0036] In the above technical solution, further, the bottom end of the push block is set to be semi-circular.

[0037] In this technical solution, the pushing block arranged in a semicircular shape can reduce the frictional force with the surface of the moving block, which is beneficial to reducing the labor intensity of installation or disassembly.

[0038] In the above technical solution, further, a cross bar is fixedly arranged at the top of the push rod.

[0039] In this technical solution, the arranged cross bar can reduce the labor intensity of installation or disassembly.

[0040] The beneficial effects of the present utility model are as follows:

[0041] 1. Through the driving structure, the clamping parts can be driven to approach or move away from each other, achieving the effect of fixing or loosening the porcelain tube. Through the annularly arranged limiting groove, it is convenient for the clamping parts to cooperate with it, which is beneficial to improving the installation efficiency.

[0042] 2. Through the pushing structure, the second telescopic rod can be pushed to expand and contract, so that the sliding rod fixed on the outer wall of the second telescopic rod moves, enabling the guiding groove to guide the guiding plate to move, thereby achieving the purpose of controlling the clamping or loosening of the porcelain tube by the clamping parts. It is beneficial to improving the installation efficiency. Under normal working conditions, the push plate cooperates with the first telescopic rod through the spring, so that the clamping parts are always stuck in the limiting groove, which is beneficial to improving the working stability. Description of the Drawings

[0043] Figure 1 is the three-dimensional schematic diagram of the present utility model;

[0044] Figure 2 is the cross-sectional view of the present utility model;

[0045] Figure 3 is the exploded view of the present utility model;

[0046] Figure 4 is the present utility model Figure 3 the enlarged view of area A in;

[0047] Figure 5 is the present utility model Figure 3 the enlarged view of area B in;

[0048] Figure 6 is the present utility model Figure 5 the enlarged view of area C in;

[0049] The marks in the figure are indicated as:

[0050] 1. Base; 2. Porcelain tube; 3. Guide rod; 4. Cavity; 5. Limiting groove; 6. Clamping part; 601. Push plate; 602. Protrusion; 603. First chute; 604. Clamping piece; 605. Connecting rod; 7. Driving structure; 701. First telescopic rod; 702. Guide plate; 703. Guide groove; 704. Second telescopic rod; 705. Slide bar; 8. Pushing structure; 801. Moving block; 802. Convex block; 803. Second chute; 804. Inclined plane; 805. Push block; 806. Push rod; 9. Plane; 10. Cross bar. Detailed implementation manner

[0051] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0052] In the description of the present application, it should be noted that the terms used here are only for describing specific implementation manners, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0053] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means that the associated objects before and after are in an "or" relationship.

[0054] It should be noted that in the description of the present application, the orientation or positional relationship indicated by the orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary explanation, these orientation terms do not indicate and imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0055] It should be noted that in the present application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0056] Embodiment 1:

[0057] As Figures 1 - 6 shown, this embodiment provides a low-voltage insulating bushing device, including: a base 1, on which a porcelain tube 2 is installed, a perforation is provided in the middle of the porcelain tube 2, and a guide rod 3 is provided in the perforation; further including: a cavity 4, which is provided on the base 1 and is located below the porcelain tube 2; a clamping structure, which is provided in the cavity 4, and the clamping structure includes: a clamping portion 6, the clamping portion 6 is symmetrically arranged in the cavity 4 and is movably arranged, a limiting groove 5, which is opened on the outer wall of the porcelain tube 2, and the clamping portion 6 can be inserted into the limiting groove 5, a driving structure 7, which is provided in the cavity 4 and is connected to the clamping portion 6 for driving the symmetrically arranged clamping portions 6 to approach or move away from each other; wherein, the limiting groove 5 is annularly arranged.

[0058] The driving structure 7 can drive the clamping portions 6 to approach or move away from each other, achieving the effect of fixing or loosening the porcelain tube 2. The annularly arranged limiting groove 5 can facilitate the cooperation of the clamping portion 6 therewith, which is beneficial to improving the installation efficiency.

[0059] Furthermore, the clamping part 6 includes: a push plate 601 symmetrically arranged in the cavity 4, with protrusions 602 symmetrically arranged on both the top and bottom surfaces of the push plate 601; first chutes 603 symmetrically arranged on the upper and lower surfaces of the cavity 4, and the protrusions 602 are slidably arranged in the first chutes 603; a clamping member 604 arranged on the side of the push plate 601 close to the porcelain tube 2, and a connecting rod 605 is arranged between the clamping member 604 and the push plate 601; wherein, the clamping member 604 can be inserted into the limiting groove 5, and the driving structure 7 is connected to the side of the push plate 601 away from the porcelain tube 2.

[0060] The driving structure 7 can push the symmetrically arranged push plates 601 to approach or move away from each other along the direction of the first chutes 603, so that the clamping members 604 are inserted into or disengaged from the limiting grooves 5, which is beneficial to improving the efficiency of installing or disassembling the porcelain tube 2.

[0061] Embodiment 2:

[0062] From Figures 1 - 6 As shown, this embodiment provides a low-voltage insulating bushing device, which, in addition to including the technical solutions of the above embodiment, also has the following technical features.

[0063] Furthermore, the driving structure 7 includes: a first telescopic rod 701 arranged between the side of the push plate 601 away from the porcelain tube 2 and the inner wall of the cavity 4, and is symmetrically arranged; a guide plate 702 arranged on the side of the push plate 601 and on the same side as the first telescopic rod 701, and a guide groove 703 is obliquely opened on the guide plate 702; a second telescopic rod 704 horizontally arranged in the cavity 4, and a sliding rod 705 is fixedly arranged on the outer wall; wherein, the sliding rod 705 is slidably arranged in the guide groove 703, and a pushing structure 8 is arranged in the horizontal direction of the axis of the first telescopic rod 701, and the pushing structure 8 is used to drive the second telescopic rod 704 to move, and a spring is sleeved on the first telescopic rod 701, and the inclination angles of the guide grooves 703 on the symmetrically arranged guide plates 702 are opposite.

[0064] The pushing structure 8 can push the second telescopic rod 704 to expand and contract, so that the sliding rod 705 fixed on the outer wall of the second telescopic rod 704 moves, so that the guide groove 703 can guide the guide plate 702 to move, so as to achieve the purpose of controlling the clamping part 6 to clamp or loosen the porcelain tube 2. It is beneficial to improve the installation efficiency. In the normal working state, the push plate 601 cooperates with the first telescopic rod 701 through the spring, so that the clamping part 6 is always stuck in the limiting groove 5, which is beneficial to improving the working stability.

[0065] Further, the pushing structure 8 includes: a moving block 801 movably arranged in the cavity 4, with bumps 802 provided on both the upper and lower surfaces thereof; a second sliding groove 803 symmetrically arranged horizontally in the cavity 4, and the bump 802 is slidably arranged in the second sliding groove 803; an inclined surface 804 provided on the moving block 801 and arranged away from the second telescopic rod 704; a pushing block 805 arranged above the moving block 801 for pushing the moving block 801 to move; and a push rod 806 passing through the upper surface of the base 1 and connected to the top surface of the pushing block 805.

[0066] By pushing the push rod 806, the pushing block 805 can be matched with the inclined surface 804 provided on the moving block 801, enabling the moving block 801 to move along the second sliding groove 803, thereby driving the clamping portion 6 to move. After canceling the thrust applied to the push rod 806, through the cooperation among the spring, the push plate 601, the guiding groove 703, and the sliding rod 705, the pushing structure can be reset, which is beneficial to improving the efficiency of installing or disassembling the porcelain tube 2.

[0067] Further, the clamping member 604 is arranged as a semi-circular ring, and a flat surface 9 is provided on the inner wall of the semi-circular ring, and the limiting groove 5 is matched therewith.

[0068] The flat surface 9 provided on the inner wall of the semi-circular ring and in the limiting groove 5 can be in mutual abutment, which can reduce the phenomenon of the porcelain tube 2 rotating after the porcelain tube 2 is installed on the base 1.

[0069] Further, the bottom end of the pushing block 805 is arranged as a semi-circle.

[0070] The semi-circularly arranged pushing block 805 can reduce the friction force with the surface of the moving block 801, which is beneficial to reducing the labor intensity of installation or disassembly.

[0071] Further, a cross bar 10 is fixedly arranged at the top of the push rod 806.

[0072] By providing the cross bar 10, the labor intensity of installation or disassembly can be reduced.

[0073] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A low voltage insulating bushing device, characterized in that , comprising: a base (1), a porcelain tube (2) being mounted on the base (1), a through hole being arranged in the middle of the porcelain tube (2), and a guide rod (3) being arranged in the through hole; It is characterized by further comprising: A cavity (4), wherein the cavity (4) is arranged on the base (1) and is located below the porcelain tube (2); A clamping structure, the clamping structure is arranged in the cavity (4), and the clamping structure comprises: A clamping portion (6), wherein the clamping portion (6) is symmetrically arranged in the cavity (4) and is movable. A limiting groove (5), wherein the limiting groove (5) is provided on the outer wall of the porcelain tube (2), and the clamping portion (6) can be inserted into the limiting groove (5). A driving structure (7), wherein the driving structure (7) is arranged in the cavity (4) and connected to the clamping portion (6), and is used to drive the symmetrically arranged clamping portions (6) to move closer to or farther from each other; Wherein, the limiting groove (5) is arranged in an annular shape.

2. A low voltage insulating bushing device according to claim 1, characterized in that: The clamping portion (6) comprises: A push plate (601), wherein the push plate (601) is symmetrically arranged in the cavity (4), and the top surface and the bottom surface of the push plate (601) are symmetrically provided with protrusions (602); A first slide groove (603), wherein the first slide groove (603) is symmetrically arranged on the upper and lower surfaces of the cavity (4), and the protrusion (602) is slidably arranged in the first slide groove (603); A clamping member (604), wherein the clamping member (604) is arranged on a side of the push plate (601) close to the porcelain tube (2), and a connecting rod (605) is arranged between the clamping member (604) and the push plate (601); The clamping member (604) can be inserted into the limiting groove (5), and the driving structure (7) is connected to the side of the push plate (601) away from the porcelain tube (2).

3. A low voltage insulating bushing device according to claim 1, characterized in that: The driving structure (7) comprises: A first telescopic rod (701), the first telescopic rod (701) being arranged between the side of the push plate (601) away from the porcelain tube (2) and the inner wall of the cavity (4), and being symmetrically arranged; A guide plate (702), the guide plate (702) being arranged on the side of the push plate (601) and being on the same plane as the first telescopic rod (701), and a guide groove (703) being obliquely provided on the guide plate (702); A second telescopic rod (704), the second telescopic rod (704) is transversely arranged in the cavity (4), and a sliding rod (705) is fixedly arranged on the outer wall; The slide rod (705) is slidably arranged in the guide groove (703), and a pushing structure (8) is arranged in the horizontal direction of the axis of the first telescopic rod (701), and the pushing structure (8) is used to drive the second telescopic rod (704) to move, and a spring is sleeved on the first telescopic rod (701), and the guide grooves (703) on the symmetrically arranged guide plates (702) have opposite inclination angles.

4. A low voltage insulating bushing device according to claim 3, characterized in that: The pushing structure (8) comprises: A moving block (801), the moving block (801) is movably arranged in the cavity (4), and has protrusions (802) on both the upper and lower surfaces; A second slide groove (803), wherein the second slide groove (803) is laterally symmetrically arranged in the cavity (4), and the protrusion (802) is slidably arranged in the second slide groove (803); An inclined surface (804), wherein the inclined surface (804) is disposed on the moving block (801) and is disposed away from the second telescopic rod (704); A push block (805), the push block (805) is arranged above the moving block (801) and is used to push the moving block (801) to move; A push rod (806) passes through the upper surface of the base (1) and is connected to the top surface of the push block (805).

5. A low voltage insulating bushing device according to claim 2, characterized in that: The clamping member (604) is in the form of a semicircular ring, and a plane (9) is provided on the inner wall of the semicircular ring, and the limiting groove (5) cooperates with the plane (9).

6. A low voltage insulating bushing device according to claim 4, characterized in that: The bottom end of the push block (805) is arranged in a semicircular shape.

7. A low voltage insulating bushing device according to claim 4, characterized in that: A cross bar (10) is fixedly arranged on the top of the push rod (806).

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