Fuse high-frequency porcelain assembly capable of preventing circuit from falling off

Abstract

The utility model discloses a fuse high-frequency porcelain assembly capable of preventing a line from falling off, which relates to the technical field of fuses and comprises a mounting plate, the upper end of the mounting plate is fixedly connected with a high-frequency porcelain body, an anti-falling mechanism is arranged in the high-frequency porcelain body, and the anti-falling mechanism comprises a top plate and a bottom plate which are arranged in the high-frequency porcelain body. The top plate is in threaded connection with a pressurizing screw rod, the lower end of the pressurizing screw rod is rotationally connected with a pressing plate, two clamping plates are arranged at the upper end of the bottom plate, arc-shaped grooves are formed in the opposite sides of the two clamping plates, and the side contact surfaces of the two clamping plates and the pressing plate are made of inclined plane structures; according to the high-frequency porcelain assembly for the fuse, the sliding rod, the sliding sleeve, the pressurizing screw rod, the pressing plate and the clamping plate are arranged, so that the effect of stably clamping a circuit is realized, and the problem that the surface of the circuit at the pressed part is easy to damage due to uneven stress as time increases when the circuit is pressed by the corrugated pressing plate in the existing high-frequency porcelain assembly for the fuse is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, in particular to a high-frequency porcelain component of a fuse which can prevent a circuit from falling off. Background Art

[0002] A fuse is an electrical device that uses the heat generated by itself to melt the fuse element and disconnect the circuit when the current exceeds the specified value. A fuse is a current protector made based on the principle that after the current exceeds the specified value for a period of time, the heat generated by the fuse element will melt the fuse element and disconnect the circuit. Fuses are widely used in high and low voltage power distribution systems and control systems as well as electrical equipment. As a short circuit and overcurrent protector, it is one of the most commonly used protective devices.

[0003] The existing patent with publication number CN221447089U discloses a high-frequency porcelain assembly for a fuse, including a high-frequency porcelain block, the front of which is provided with two openings, the inner top wall of each opening being fixedly inlaid with a rolling bearing, the inner bottom wall of each opening being fixedly inlaid with a pressure bearing, the inner ring of each pressure bearing being fixedly connected with a threaded rod, the top end of each threaded rod passing through the rolling bearing and extending to the top of the rolling bearing, and the inner bottom wall of each opening being fixedly connected with a frame. This device is provided with a threaded rod, a threaded block, an anti-slip groove, a rolling bearing, a pressure plate, a frame and a sliding opening, and utilizes the cooperation between the threaded rod and the threaded block to facilitate the movement of the threaded block on the surface of the threaded rod while driving the pressure plate to slide inside the sliding opening, so that the pressure plate is close to the line when moving and can compress the line. Since the anti-slip groove is provided on the bottom surface of the pressure plate, the line can be prevented from falling off during use, and it is convenient for current use.

[0004] Although the high-frequency porcelain component of the fuse in the above-mentioned patent can prevent the circuit from falling off, when fixing the circuit, it mainly presses the circuit through a pressure plate with a corrugated anti-slip groove on the surface. When the corrugated protrusion presses the circuit, the surface of the circuit at the pressing point is prone to damage due to uneven force over time, which affects the service life of the circuit. Based on this, we propose an improvement to the high-frequency porcelain component of the fuse that prevents the circuit from falling off. Utility Model Content

[0005] The main purpose of the utility model is to provide a high-frequency porcelain component of a fuse that prevents the circuit from falling off, which can effectively solve the technical problem in the background technology that the high-frequency porcelain component of the fuse that prevents the circuit from falling off is pressed together by a corrugated pressing plate, and as time goes by, the circuit surface at the pressing point is easily damaged due to uneven force.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A high-frequency porcelain component of a fuse for preventing circuit detachment, comprising a mounting plate, a high-frequency porcelain body fixedly connected to the upper end of the mounting plate, and an anti-detachment mechanism provided inside the high-frequency porcelain body;

[0008] The anti-slip mechanism includes a top plate and a bottom plate arranged in a high-frequency porcelain body, a pressure screw being threadedly connected to the top plate, a pressure plate being rotatably connected to the lower end of the pressure screw, and two splints being provided at the upper end of the bottom plate, arc-shaped grooves being provided on opposite sides of the two splints, and side contact surfaces of the two splints and the pressure plate being made of an inclined structure.

[0009] Preferably, sliding rods are fixedly connected between the top plate and the bottom plate at positions near both sides, sliding sleeves are slidably sleeved on the outer walls of the two sliding rods, and the pressure plate is fixedly connected between the two sliding sleeves.

[0010] Preferably, both sides of the upper end surface of the base plate are provided with sliding grooves, guide rods are fixedly connected in the two sliding grooves, sliders are slidably connected on the outer walls of the two guide rods, and the two splints are respectively fixedly connected to the upper ends of the two sliders.

[0011] Preferably, the upper ends of the two pressurizing screws are fixedly connected to knobs, and a locking mechanism is provided between the knobs and the high-frequency porcelain body.

[0012] Preferably, the locking mechanism includes a sleeve block, in which a fixed block and a pressing block are fixedly and slidably arranged respectively. An adjusting screw is threadedly connected to one side of the sleeve block, and one end of the adjusting screw is rotatably connected to the pressing block.

[0013] Preferably, the rod body of the pressurizing screw rod is movably sleeved with the high-frequency porcelain body and the sleeve block, and the rod body of the pressurizing screw rod is arranged between the fixed block and the pressing block.

[0014] The beneficial effects of the utility model are as follows:

[0015] This high-frequency porcelain component of a fuse that prevents circuit detachment is provided with a sliding rod, a sliding sleeve, a pressure screw, a pressure plate, and a clamping plate structure. The pressure screw is rotated to drive the pressure plate downward, thereby driving the clamping plate to move smoothly, thereby achieving uniform pressure on the circuit. While ensuring stable clamping of the circuit, it can effectively prevent the circuit from being damaged due to uneven clamping force.

[0016] The high-frequency porcelain component of a fuse for preventing circuit detachment is provided with a sleeve block, a fixed block, a pressure block and an adjusting screw structure. The adjusting screw is rotated to drive the pressure block to move relative to the sleeve block. The fixed block can be used to pressurize the axial surface of the pressure screw to prevent the pressure screw from rotating and causing the anti-detachment mechanism to loosen. The double protection is provided to improve the stability of the clamping force. At the same time, no additional tools are needed for operation during later disassembly, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of a high-frequency porcelain component of a fuse that prevents circuit detachment in the utility model;

[0018] Figure 2 This is a schematic diagram of an anti-drop mechanism for a high-frequency porcelain component of a fuse that prevents circuit dropout in the utility model;

[0019] Figure 3 This is a schematic diagram of a locking mechanism for a high-frequency porcelain component of a fuse that prevents circuit detachment according to the present invention;

[0020] Figure 4 This is a front view of a high-frequency porcelain component of a fuse for preventing circuit falling off according to the utility model.

[0021] In the figure: 1. Mounting plate; 2. High-frequency porcelain body; 3. Anti-slip mechanism; 31. Top plate; 32. Bottom plate; 33. Sliding rod; 34. Sliding sleeve; 35. Pressing plate; 36. Guide rod; 37. Sliding block; 38. Clamping plate; 39. Pressurizing screw; 310. Knob; 4. Locking mechanism; 41. Sleeve block; 42. Fixing block; 43. Pressing block; 44. Adjusting screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] Combine Figure 1 、 Figure 2 and Figure 4 A high-frequency porcelain component of a fuse for preventing a circuit from falling off comprises a mounting plate 1, a high-frequency porcelain body 2 being fixedly connected to the upper end of the mounting plate 1, and an anti-falling mechanism 3 being arranged inside the high-frequency porcelain body 2.

[0025] See Figure 2 , it is further obtained that the anti-slip mechanism 3 includes a top plate 31 and a bottom plate 32 arranged in the high-frequency porcelain body 2, a pressure screw 39 is threadedly connected to the top plate 31, and the lower end of the pressure screw 39 is rotatably connected to the pressure plate 35, and two clamping plates 38 are provided at the upper end of the bottom plate 32, and arc-shaped grooves are opened on the opposite sides of the two clamping plates 38, and the side contact surfaces of the two clamping plates 38 and the pressure plate 35 are made of a slope structure.

[0026] Specifically, the pressure screw 39 is rotated to drive the pressure plate 35 downward, thereby pressing the two pressure plates 35 to move relative to each other, so that the circuit is clamped and fixed by the two pressure plates 35.

[0027] Example 2

[0028] See Figure 2 , and on the basis of Example 1, it is further obtained that sliding rods 33 are fixedly connected between the top plate 31 and the bottom plate 32 near the two sides, sliding sleeves 34 are slidably sleeved on the outer walls of the two sliding rods 33, the pressure plate 35 is fixedly connected between the two sliding sleeves 34, and sliding grooves are opened on both sides of the upper end surface of the bottom plate 32, and guide rods 36 are fixedly connected in the two sliding grooves. Slide blocks 37 are slidably connected on the outer walls of the two guide rods 36, and two splints 38 are respectively fixedly connected to the upper ends of the two slide blocks 37.

[0029] Specifically, by sliding the sleeve 34 on the slide rod 33 , the pressure plate 35 can be prevented from rotating along with the pressure screw 39 , and by sliding the slider 37 on the guide rod 36 , the moving direction of the two clamping plates 38 can be ensured.

[0030] Example 3

[0031] See Figure 2-Figure 4 , and on the basis of Example 1 and Example 2, it is further obtained that the upper ends of the two pressurizing screws 39 are fixedly connected with knobs 310, and a locking mechanism 4 is provided between the knobs 310 and the high-frequency porcelain body 2;

[0032] The locking mechanism 4 includes a sleeve block 41, in which a fixed block 42 and a pressure block 43 are fixedly and slidably arranged respectively. An adjusting screw 44 is threadedly connected to one side of the sleeve block 41, and one end of the adjusting screw 44 is rotatably connected to the pressure block 43. The rod body of the pressure screw 39 is movably connected to the high-frequency porcelain body 2 and the sleeve block 41, and the rod body of the pressure screw 39 is arranged between the fixed block 42 and the pressure block 43.

[0033] Specifically, by loosening the adjusting screw 44, the pressure block 43 will reduce the pressure on the rod body of the pressurizing screw 39. At this time, it is convenient to drive the pressurizing screw 39 to rotate through the knob 310. Tightening the adjusting screw 44 will drive the pressure block 43 to move toward the fixed block 42, increasing the pressure on the rod body of the pressurizing screw 39 and limiting the rotation of the pressurizing screw 39.

[0034] During actual operation, the pressure screw 39 is driven to rotate by the knob 310. Under the condition that the sleeve 34 slides and sleeves the slide rod 33, the pressure plate 35 can be stably dropped vertically, and then the two clamping plates 38 are pressed together and brought close to each other under the limiting action of the slider 37, so that the two clamping plates 38 clamp the line more stably, and the line is more evenly stressed to avoid damage. After fixing the line, the adjusting screw 44 is rotated to drive the pressure block 43 to move toward the fixed block 42, and the outer wall of the shaft body of the pressure screw 39 is pressed, thereby limiting the rotation of the pressure screw 39. By setting up double protection, the clamping plate 38 can stably maintain the clamping force on the line.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A high-frequency porcelain component for a fuse that prevents circuit detachment, comprising a mounting plate (1), characterized in that: A high-frequency porcelain body (2) is fixedly connected to the upper end of the mounting plate (1), and an anti-slip mechanism (3) is provided inside the high-frequency porcelain body (2); The anti-slip mechanism (3) includes a top plate (31) and a bottom plate (32) arranged in a high-frequency porcelain body (2), a pressure screw (39) being threadedly connected to the top plate (31), a pressure screw (39) being rotatably connected to the lower end of the pressure screw (39) being rotatably connected to a pressure plate (35), and two clamping plates (38) being provided at the upper end of the bottom plate (32), arc-shaped grooves being provided on opposite sides of the two clamping plates (38), and side contact surfaces of the two clamping plates (38) and the pressure plate (35) being made of an inclined surface structure.

2. The high-frequency porcelain component of a fuse for preventing circuit loss according to claim 1, characterized in that: Sliding rods (33) are fixedly connected between the top plate (31) and the bottom plate (32) at positions near both sides, and sliding sleeves (34) are slidably sleeved on the outer walls of the two sliding rods (33), and the pressing plate (35) is fixedly connected between the two sliding sleeves (34).

3. The high-frequency porcelain component of a fuse for preventing circuit loss according to claim 1, characterized in that: Slide grooves are provided on both sides of the upper end surface of the bottom plate (32), and guide rods (36) are fixedly connected in the two slide grooves. Slide blocks (37) are slidably connected to the outer walls of the two guide rods (36), and the two clamping plates (38) are respectively fixedly connected to the upper ends of the two slide blocks (37).

4. The high-frequency porcelain component of a fuse for preventing circuit loss according to claim 1, characterized in that: The upper ends of the two pressurizing screw rods (39) are fixedly connected to knobs (310), and a locking mechanism (4) is provided between the knobs (310) and the high-frequency porcelain body (2).

5. The high-frequency porcelain component of a fuse for preventing circuit loss according to claim 4, characterized in that: The locking mechanism (4) comprises a sleeve block (41), wherein a fixed block (42) and a pressing block (43) are respectively fixedly and slidably arranged in the sleeve block (41), an adjusting screw (44) is threadedly connected to one side of the sleeve block (41), and one end of the adjusting screw (44) is rotatably connected to the pressing block (43).

6. The high-frequency porcelain component of a fuse for preventing circuit loss according to claim 5, characterized in that: The rod body of the pressurizing screw rod (39) is movably sleeved with the high-frequency porcelain body (2) and the sleeve block (41), and the rod body of the pressurizing screw rod (39) is arranged between the fixed block (42) and the pressing block (43).

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