Resistor with resistance wire convenient to replace

Abstract

The utility model belongs to the technical field of resistors, and discloses a resistor convenient to replace a resistance wire, which comprises a porcelain tube, connecting frames are arranged on two sides of the porcelain tube, movable rings are sleeved on the outer surfaces of the connecting frames in a threaded manner, connecting terminals are arranged in inner cavities of the movable rings, second elastic sheets are mounted on the inner sides of the connecting terminals, and the second elastic sheets are connected with the porcelain tube. The inner side of the second elastic piece extends to the outer portion of the movable ring. Through the arrangement of the second elastic piece and the movable ring, when an operator rotates the movable ring, the movable ring is driven to move out of the top of the first elastic piece, so that clamping between the first elastic piece and the second elastic piece is relieved, fixation of the resistance wire is relieved, the damaged resistance wire is screwed out of the porcelain tube, and then the replaced resistance wire is wound on the porcelain tube again; and along with the resetting of the movable ring, the replaced resistance wire is extruded again through the elastic sheet II and the elastic sheet I, so that an operator can replace the resistance wire conveniently, the operation is simple, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of resistor, specifically a kind of resistor of resistance wire is replaced conveniently. BACKGROUND

[0002] Resistor is the basic element in electronic circuit, mainly for limiting current, voltage division, bias and as load etc., after resistance is connected in circuit, the resistance of resistor is fixed generally two pins, it can limit the current size of branch connected through it;

[0003] In prior art, the resistance wire in resistor is used to limit the flow of current in circuit, converts electrical energy into heat energy, while the material selection and manufacturing process of resistance wire have important influence on the performance of resistor, however, after long time use of resistor, resistance wire is prone to aging phenomenon, or overload fuse phenomenon occurs, and then resistor needs to be replaced, but the cost of replacing entire resistor is higher, so it needs to be improved. UTILITY MODEL CONTENT

[0004] To solve the problems in the above background art, the utility model provides a kind of resistor of resistance wire is replaced conveniently.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of resistor of resistance wire is replaced conveniently, including porcelain pipe, the both sides of porcelain pipe are provided with connecting frame, the outer surface of connecting frame is screw-threaded and is connected with movable ring, the inner chamber of movable ring is provided with connecting terminal, the inner side of connecting terminal is installed with elastic sheet two, the inner side of elastic sheet two extends to the outside of movable ring, the outer surface of porcelain pipe is equipped with resistance wire, the both ends of resistance wire extend to the below of elastic sheet two.

[0006] Preferably, the outer side of the connecting frame is provided with a threaded rod, and the outer surface of the threaded rod is connected with a bracket.

[0007] Preferably, the outer surface of the threaded rod is screw-threaded and is connected with a fixing piece, and the inner side of the fixing piece is movably connected with the outer side of the bracket.

[0008] Preferably, the outer side of the connecting terminal is provided with a threaded stud, and the threaded stud penetrates through the other end of the connecting terminal and is provided with a bolt.

[0009] Preferably, the top of the connecting frame is provided with a groove, and the inner wall of the groove is provided with an elastic sheet one below the elastic sheet two.

[0010] Preferably, the connecting terminal has a circular arc shape, and has good elastic effect.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model discloses a setting elastic sheet two and movable ring, when the operator rotates movable ring, drives movable ring to remove from the top of elastic sheet one, makes it release the clamping between elastic sheet one and elastic sheet two, and releases the fixation of resistance wire, rotates the resistance wire of damage from the outside of porcelain pipe, after the replacement resistance wire is rewrapped on porcelain pipe, along with the reset of movable ring, through elastic sheet two and elastic sheet one re -extruding the replacement resistance wire, thereby convenient for the replacement of operator to resistance wire, and simple operation reduces the use cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the utility model;

[0014] Figure 2 It is the front cross section structure schematic diagram of the utility model;

[0015] Figure 3 It is the structure schematic diagram of the utility model connecting frame;

[0016] Figure 4 It is the cross section structure schematic diagram of the utility model movable ring;

[0017] Figure 5 It is the structure schematic diagram of the utility model connecting frame.

[0018] In the drawing: 1, porcelain pipe;2, connecting frame;3, threaded rod;4, support;5, fixed part;6, elastic sheet one;7, resistance wire;8, movable ring;9, connecting terminal;10, elastic sheet two;11, bolt;12, recess. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] As Figures 1 to 5 The utility model discloses a kind of resistance wire replacement convenient resistor of resistance wire, including porcelain pipe 1, the both sides of porcelain pipe 1 are provided with connecting frame 2, connecting frame 2 outer surface is threadedly sleeved with movable ring 8, movable ring 8 inner chamber is provided with connecting terminal 9, the inside of connecting terminal 9 is installed with elastic sheet two 10, the inside of elastic sheet two 10 extends to the outside of movable ring 8, the outer surface of porcelain pipe 1 is sleeved with resistance wire 7, and the both ends of resistance wire 7 extend to below elastic sheet two 10;

[0021] By rotating the movable ring 8, the movable ring 8 is moved to the other side of the connecting frame 2, and the elastic sheet two 10 is released from the clamping of the end of the resistance wire 7, so that the two ends of the resistance wire 7 are pulled out from between the connecting frame 2 and the movable ring 8, and the resistance wire 7 is rotated out of the outer surface of the porcelain tube 1, and the good resistance wire 7 is wound on the porcelain tube 1. By resetting the movable ring 8 on both sides, and the elastic force of the elastic sheet two 10 is extruded, the two ends of the resistance wire 7 are extruded and clamped, and the clamping of the elastic sheet two 10 and the connection between the resistance wire 7 and the connecting terminal 9 are achieved, so that the operator can replace the resistance wire 7, which reduces the use cost.

[0022] The outer side of the connecting frame 2 is provided with a threaded rod 3, and the outer surface of the threaded rod 3 is connected with a support 4;

[0023] Through the design of the support 4, it is convenient for the operator to install the whole resistor, which brings convenience to the installation of the personnel.

[0024] The outer surface of the threaded rod 3 is threadedly sleeved with a fixing piece 5, and the inner side of the fixing piece 5 is movably connected with the outer side of the support 4;

[0025] The fixing piece 5 is used to connect the support 4 and the porcelain tube 1 as a whole, so that the installation of the whole resistor is facilitated, which brings convenience to the use of the personnel.

[0026] The outer side of the connecting terminal 9 is provided with a threaded rod, and the threaded rod penetrates through the other end of the connecting terminal 9 and is provided with a bolt 11;

[0027] The connecting terminal 9 is arranged inside the movable ring 8, which protects the connecting terminal 9 by the movable ring 8, and the two sides of the connecting terminal 9 are fixed together by the threaded rod and the bolt 11, and the connecting terminal 9 is arranged inside the movable ring 8.

[0028] The top of the connecting frame 2 is provided with a groove 12, and the inner wall of the groove 12 is provided with an elastic sheet one 6 below the elastic sheet two 10;

[0029] When installing a new resistance wire 7, the two ends of the resistance wire 7 are respectively placed in the groove 12, and the two sides of the resistance wire 7 are positioned by the groove 12, and the resistance wire 7 is extruded by the elastic force of the elastic sheet one 6, and the elastic sheet two 10 is continuously rotated, and the elastic sheet one 6 is released, and the two ends of the replaced resistance wire 7 are clamped by the extrusion of the elastic sheet two 10 and the elastic sheet one 6, so that the replacement of the resistance wire 7 is facilitated, and the connection between the resistance wire 7 and the connecting terminal 9 is stable.

[0030] The connecting terminal 9 has a circular arc shape and has a good elastic effect.

[0031] When the connecting terminal 9 is not closed at both ends, the both ends of the connecting terminal 9 are tightly attached to the inner wall of the movable ring 8 by the elastic force of the connecting terminal 9, so as to facilitate the placement of the connecting resistor wire inside the connecting terminal 9 and the connection of the wire.

[0032] The working principle and use process of the utility model:

[0033] Firstly, when the operator replaces the resistance wire 7 on the resistor, the resistor is disassembled from the installation place, and then the movable ring 8 is rotated to drive the movable ring 8 to move out from the outer side of the connecting frame 2, the connecting terminal 9 and the elastic sheet two 10 are moved by the movable ring 8, the elastic sheet two 10 is moved out from the top of the elastic sheet one 6, the extrusion of the elastic sheet two 10 and the elastic sheet one 6 on the end part of the resistance wire 7 is released, then the both ends of the resistance wire 7 are moved out from the inner side of the movable ring 8, the damaged resistance wire 7 is rotated out from the porcelain tube 1, then a section of the replaced resistance wire 7 is inserted into the groove 12, the elastic sheet two 10 is driven to move to the top of the elastic sheet one 6 by rotating the movable ring 8 on one side, so that the resistance wire 7 is clamped and fixed again, then the replaced resistance wire 7 is wound outside the porcelain tube 1, the other end of the resistance wire 7 is also inserted into the groove 12 on the other side, the other end of the resistance wire 7 is clamped by rotating the movable ring 8, so that the operator can replace the damaged resistance wire 7, and the resistor can be put into use again, so that the use cost is reduced.

[0034] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the utility model have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A resistor facilitating replacement of a resistance wire, comprising a porcelain tube (1), characterized in that: Both sides of the porcelain tube (1) are provided with connecting frames (2), outer surfaces of the connecting frames (2) are threadedly sleeved with movable rings (8), inner cavities of the movable rings (8) are provided with connecting terminals (9), inner sides of the connecting terminals (9) are mounted with elastic sheets two (10), the elastic sheets two (10) extend to the outside of the movable rings (8), outer surfaces of the porcelain tube (1) are sleeved with resistance wires (7), both ends of the resistance wires (7) extend to below the elastic sheets two (10).

2. The resistor of claim 1, wherein: Outer sides of the connecting frames (2) are provided with threaded rods (3), outer surfaces of the threaded rods (3) are connected with supports (4).

3. The resistor of claim 2, wherein: Outer surfaces of the threaded rods (3) are threadedly sleeved with fixing pieces (5), inner sides of the fixing pieces (5) are movably connected with outer sides of the supports (4).

4. The resistor of claim 1 wherein: Outer sides of the connecting terminals (9) are provided with threaded studs, the threaded studs penetrate through the other ends of the connecting terminals (9) and are provided with bolts (11).

5. The resistor of claim 1 wherein: Top portions of the connecting frames (2) are provided with grooves (12), inner walls of the grooves (12) are provided with elastic sheets one (6) below the elastic sheets two (10).

6. The resistor of claim 1 wherein: The connecting terminals (9) are arc-shaped in appearance, and have elastic effect.

Images