Pluggable filtering attenuator

Abstract

The utility model discloses a pluggable filtering attenuator, which relates to the technical field of filtering attenuators, and comprises a filtering attenuator main body, the left end and the right end of the outer surface of the filtering attenuator main body are both provided with pluggable ports, and the two ends of the inner surface of each pluggable port are both provided with collecting grooves. Thrust springs are fixedly arranged at the tail ends of the inner surfaces of the collecting grooves. Compared with the conventional common plug-in filter attenuator, the plug-in filter attenuator has the advantages that under the condition that the plug-in port is not used, the thrust spring pushes the baffle plate to block the plug-in port, so that the condition that the unused plug-in port is in an open state and dust enters and pollutes a circuit interface of an electric device is avoided; the inclined surface can push the baffle plate to contract into the collection groove, the plugging port is opened for normal plugging, the elastic force of the thrust spring can maintain the pushing force of the baffle plate to the middle, so that the baffle plate clamps the plug wire, the situation that the plug wire is loosened and falls off due to external force is avoided, and the connection stability of the plug wire and the protection performance of the plugging port are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter attenuators, in particular to a plug-in filter attenuator. Background Art

[0002] A filter is a filter circuit composed of capacitors, inductors and resistors. It is a frequency selection device and a device for filtering waves. It can allow specific frequency components in the signal to pass through while greatly attenuating other frequency components. In other words, any device or system that can allow specific frequency components in the signal to pass through while greatly attenuating or suppressing other frequency components is called a filter. It is widely used in the technical field. The plug-in type replaces the traditional wiring method of screwing the bolt head to fix it with a plug-in connection method of plugs and sockets.

[0003] For example, the public document with application number 202021782805.3 discloses a plug-in filter attenuator. On the one hand, the utility model transfers the screw through holes on the filter attenuator body to the base plate, and cooperates with the first countersunk screw through hole and the first hexagon socket head screw on the base plate to facilitate the installation and fixation of the base plate on the counterpart; on the other hand, the arc rod, the support block and the positioning mechanism facilitate the installation, fixation and disassembly of the filter attenuator body on the base plate. However, when the plug-in filter attenuator is connected and used using a connecting wire and a socket, the connecting wire is directly inserted into the socket through a plug, and the connecting wire is easily loosened and fallen off due to external factors, and other unused sockets remain open, and dust can easily enter the interior through the socket, thereby affecting normal connection and use.

[0004] Therefore, in view of this, the shortcomings of the existing structure are studied and improved, and a plug-in filter attenuator is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a plug-in filter attenuator to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plug-in filter attenuator, comprising a filter attenuator body, wherein the left and right ends of the outer surface of the filter attenuator body are provided with plug-in ports, and the two ends of the inner surface of the plug-in port are provided with convergence grooves, and the ends of the inner surfaces of the convergence grooves are fixedly provided with thrust springs, and the opposite end of the thrust spring is fixedly installed with a baffle, the front side of the surface of the baffle is set as a slope, and the baffle is located inside the convergence groove and slides.

[0007] Preferably, insert blocks are fixedly provided at both left and right ends below the outer surface of the filter attenuator body, and positioning holes are provided at the front and rear sides of the surface of the insert blocks.

[0008] Preferably, a connecting base plate is provided below the filter attenuator body, and the connecting base plate is fixed to the counterpart by means of bolts and screw holes.

[0009] Preferably, slots are provided at both left and right ends above the surface of the connecting bottom plate, and a fixing seat is fixedly provided at the bottom end of the inner surface of the slot.

[0010] Preferably, a movable block is rotatably arranged in the middle of the surface of the fixed seat through the same rotating shaft seat, and the upper end of the movable block is arranged in an inclined surface.

[0011] Preferably, a telescopic spring is fixedly provided at the middle of one side opposite to the surface of the movable block, and a dial handle is fixedly installed on one side of the surface of the movable block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a plug-in port, a gathering groove, a thrust spring and a baffle. When the plug-in port is not in use, the thrust spring pushes the baffle to block the plug-in port, thereby preventing the unused plug-in port from being in an open state and dust from entering and contaminating the circuit interface of the electrical device. When wiring, the baffle can be pushed into the gathering groove by the inclined surface, and the plug-in port is opened for normal connection and use. The thrust spring can maintain the pushing force of the baffle toward the middle by its own elastic force, so that the baffle can clamp the plug wire, effectively preventing the plug wire from loosening and falling off due to external force, thereby improving the stability of the plug wire connection and the protection of the plug-in port.

[0014] 2. The utility model arranges an insert block, a positioning hole, a slot, a fixing seat, a movable block, a telescopic spring and a handle. The outer side surface of the insert block fits the inner surface of the slot and moves downward to be inserted. The insert block uses the top inclined surface of the movable block to push the movable block to squeeze the telescopic spring to converge toward the middle. When the top protrusion of the movable block is flush with the positioning hole, the telescopic spring pushes the movable block to expand toward both sides of the connection and inserts it into the positioning hole, thereby fixing the filter attenuator body to the connecting bottom plate. There is no need to use any additional connection auxiliary parts. The fixation can be completed by inserting the insert block into the slot. The fixed installation operation is extremely simple and quick, which improves the efficiency and practicality of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall assembly structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall disassembly structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. Filter attenuator body; 2. Plug-in port; 3. Converging groove; 4. Thrust spring; 5. Baffle; 6. Insert block; 7. Positioning hole; 8. Connecting base plate; 9. Slot; 10. Fixed seat; 11. Movable block; 12. Telescopic spring; 13. Handle. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] like Figure 1-Figure 3 As shown, a plug-in filter attenuator comprises a filter attenuator body 1, plug-in ports 2 are provided at both ends of the outer surface of the filter attenuator body 1, and convergence grooves 3 are provided at both ends of the inner surface of the plug-in port 2. Thrust springs 4 are fixedly provided at the ends of the inner surface of the convergence grooves 3, and a baffle 5 is fixedly installed at the opposite end of the thrust spring 4. The front side of the surface of the baffle 5 is set as an inclined surface, and the baffle 5 is located inside the convergence groove 3 and slides. Insertion blocks 6 are fixedly provided at both ends of the lower side of the outer surface of the filter attenuator body 1, and the front and rear sides of the surface of the insertion block 6 are A positioning hole 7 is provided, and a connecting base plate 8 is provided below the filter attenuator body 1. The connecting base plate 8 is fixed to the counterpart by means of bolts and screw holes. Slots 9 are provided on both left and right ends above the surface of the connecting base plate 8. A fixing seat 10 is fixedly provided at the bottom end of the inner surface of the slot 9. A movable block 11 is rotatably provided at the middle part of the surface of the fixing seat 10 through the same rotating shaft seat. The upper end of the movable block 11 is provided in an inclined surface. A telescopic spring 12 is fixedly provided at the middle part of the opposite side of the surface of the movable block 11, and a dial handle 13 is fixedly installed at one side of the surface of the movable block 11.

[0021] Furthermore, the thrust spring 4 provides the baffle 5 with a force to keep moving toward the middle at all times. When the plug port 2 is not in use, the thrust spring 4 pushes the baffle 5 to block the plug port 2, thereby preventing the unused plug port 2 from being in an open state and dust from entering and contaminating the circuit interface of the electrical device.

[0022] Furthermore, the front side of the baffle 5 is inclined so that the plug of the patch cord can push the baffle 5 to retract into the gathering groove 3, so that the plug port 2 can be opened normally to complete the connection.

[0023] Furthermore, after wiring, the thrust spring 4 can maintain the pushing force of the baffle 5 toward the middle by utilizing its own elastic force, so that the baffle 5 can clamp the patch cord, effectively preventing the patch cord from loosening and falling off due to external force.

[0024] Furthermore, the insert block 6 can fit and slide into the inner wall of the slot 9 .

[0025] Furthermore, the insert block 6 utilizes the upper end inclined surface of the movable block 11 to push the movable block 11 to converge toward the middle.

[0026] Furthermore, when the movable block 11 is flush with the positioning hole 7 , under the elastic force of the telescopic spring 12 , the upper end protrusion of the movable block 11 is inserted into the positioning hole 7 , thereby fixing the filter attenuator body 1 and the connecting bottom plate 8 .

[0027] Furthermore, by pinching the handle 13 , the movable block 11 can be driven to retract for the second time and move out of the positioning hole 7 , so that the filter attenuator body 1 can be separated and disassembled from the connecting bottom plate 8 .

[0028] Working principle: When using the plug-in filter attenuator, first, the connecting base plate 8 is fixedly installed on the counterpart by means of bolts and screw holes, and then the outer side of the plug-in block 6 is inserted downwardly by fitting the inner surface of the slot 9. The plug-in block 6 uses the top inclined surface of the movable block 11 to push the movable block 11 to squeeze the telescopic spring 12 to converge in the middle. When the top protrusion of the movable block 11 is flush with the positioning hole 7, the telescopic spring 12 pushes the movable block 11 to expand toward both sides of the connection and inserts it into the positioning hole 7, thereby fixing the filter attenuator body 1 to the connecting base plate 8. Then, the plug-in wire is The inclined surface can be used to push the baffle 5 to retract into the gathering groove 3, and the plug port 2 is opened to connect with the internal electrical device interface for normal use. The thrust spring 4 uses its own elastic force to maintain the pushing force of the baffle 5 toward the middle, so that the baffle 5 can clamp the plug wire to ensure the stable connection of the plug wire. For other unused plug ports 2, the thrust spring 4 pushes the baffle 5 to block the plug ports 2 to prevent the unused plug ports 2 from being in an open state and dust from entering and contaminating the electrical device line interface. This is the working principle of the plug-in filter attenuator.

Claims

1. A plug-in filter attenuator, comprising a filter attenuator body (1), characterized in that: The left and right ends of the outer surface of the filter attenuator body (1) are provided with plug-in ports (2), the inner surfaces of the plug-in ports (2) are provided with convergence grooves (3), the inner surface ends of the convergence grooves (3) are fixedly provided with thrust springs (4), the opposite end of the thrust spring (4) is fixedly provided with a baffle (5), the front side of the surface of the baffle (5) is provided as an inclined surface, and the baffle (5) is located inside the convergence groove (3) and slides.

2. The plug-in filter attenuator according to claim 1, characterized in that: Insertion blocks (6) are fixedly arranged at both left and right ends below the outer surface of the filter attenuator body (1), and positioning holes (7) are provided on the front and rear sides of the surface of the insertion block (6).

3. The plug-in filter attenuator according to claim 1, characterized in that: A connecting base plate (8) is provided below the filter attenuator body (1), and the connecting base plate (8) is fixed to a counterpart by means of bolts and screw holes.

4. The plug-in filter attenuator according to claim 3, characterized in that: Slots (9) are provided at both left and right ends of the upper surface of the connecting bottom plate (8), and a fixing seat (10) is fixedly provided at the bottom end of the inner surface of the slot (9).

5. The plug-in filter attenuator according to claim 4, characterized in that: A movable block (11) is rotatably arranged in the middle of the surface of the fixed seat (10) via the same rotating shaft seat, and the upper end of the movable block (11) is arranged in an inclined surface.

6. The plug-in filter attenuator according to claim 5, characterized in that: A telescopic spring (12) is fixedly arranged in the middle of one side opposite to the surface of the movable block (11), and a handle (13) is fixedly installed on one side of the surface of the movable block (11).

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