CN210984414U

CN210984414U - Resistor

Info

Publication number: CN210984414U
Application number: CN201921394212.7U
Authority: CN
Inventors: 王金荣
Original assignee: Individual
Current assignee: Shanghai Lichuang Technology Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-07-10
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a resistor, which comprises a shell, wherein a rotating shaft is rotatably arranged in the shell, an insulating cylinder is arranged on the rotating shaft, clamping grooves are axially formed in the surface of the insulating cylinder, the clamping groove array is provided with four groups, a resistor plate is fixedly clamped in the clamping grooves, a first contact is arranged on the side wall of the shell, the first contact is in contact with the end surface of the insulating cylinder, a conductive sliding rod is fixed at the upper end of the shell, a second contact is connected onto the conductive sliding rod in a sliding manner, and the second contact is in contact with the surface of the insulating cylinder; through four group's resistance boards of different resistance ranges of installation on the insulating cylinder, increased the adjustable scope of resistance, be convenient for adjust change use, rethread push handle drives the second contact and slides on the resistance board, and the size of being convenient for adjust resistance realizes the fine setting of resistance, simple structure, and convenient operation can improve the application scope of resistance, and the practicality is strong.

Description

Resistor

Technical Field

The utility model relates to the technical field of resistance, specifically be a resistor.

Background

The resistance value of the currently used adjustable resistor is single, the resistance value of the adjustable resistor is changed by adjusting the resistance value of the adjustable resistor, and the variable range of the resistance value of the adjustable resistor is certain, so that the equipment can only be used in the range, and therefore, when the experiment is complex and the used resistor range is large, the adjustable resistor in the single range cannot meet the experiment requirement. Therefore, it is desirable to provide a resistor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resistor, structural design is simple reasonable, has increased the adjustable scope of resistor, and the size of the regulating resistor of being convenient for realizes the fine setting of resistor, simple structure, convenient operation to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a resistor, includes the casing, the pivot is installed to the casing internal rotation, install the insulating cylinder in the pivot, the draw-in groove has been seted up to insulating cylinder surface axial, the draw-in groove array is provided with four groups, and the joint is fixed with the resistance board in the draw-in groove, install first contact on the lateral wall of casing, the terminal surface contact of first contact and insulating cylinder, the upper end of casing is fixed with electrically conductive slide bar, sliding connection has the second contact on the electrically conductive slide bar, second contact and insulating cylinder surface contact, fixed mounting has first terminal and second terminal on the outer wall of casing, first terminal is connected with electrically conductive slide bar electricity, the second terminal is connected with first contact, first contact is connected with electrically conductive slide bar electricity.

Preferably, a conductive sliding sleeve is sleeved on the conductive sliding rod in a sliding mode, the second contact is installed on the conductive sliding sleeve, and a handle is installed at the upper end of the conductive sliding sleeve.

Preferably, the lower end of the conductive sliding sleeve is fixedly connected with a sleeve, one end of the second contact is inserted into the sleeve in a sliding mode, and a pressure spring is installed in the sleeve.

Preferably, a through hole is formed in the side wall of the housing, a positioning spring is arranged in the through hole, the first contact is inserted into the through hole, and the first contact is connected with the positioning spring.

Preferably, the end of the resistance plate is provided with a positioning groove, and the positioning groove is matched and clamped with the first contact.

Preferably, foot pads are fixed at the bottom of the shell and arranged on two sides of the shell.

Preferably, the upper portion of casing is provided with the scale plate, the one end of pivot is fixed with the knob.

Compared with the prior art, the beneficial effects of the utility model are that:

when the resistance adjusting device is used, a wiring line is connected with the first binding post and the second binding post, so that the first binding post, the conductive sliding rod, the second contact, the resistance plate, the first contact and the second binding post form a resistance adjusting path, the rotating shaft is lifted first according to a required resistance range, the insulating cylinder is controlled to rotate, the appropriate resistance plate is rotated to be in contact with the second contact, four groups of resistance plates in different resistance ranges are installed on the insulating cylinder, the adjustable range of the resistance is increased, the resistance adjusting device is convenient to adjust, replace and use, and then the second contact is driven to slide on the resistance plate by pushing the handle, so that the resistance is convenient to adjust, fine adjustment of the resistance is realized, the structure is simple, the operation is convenient, the application range of the resistance can be improved, and the practicability is high.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic structural view of an end portion of the middle insulating cylinder according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 1 at A according to the present invention;

fig. 5 is a schematic structural view of the middle conductive sliding sleeve of the present invention.

In the figure: 1. a housing; 2. a rotating shaft; 3. an insulating cylinder; 4. a resistance plate; 5. a first contact; 6. a conductive slide bar; 7. a conductive sliding sleeve; 8. a second contact; 9. a handle; 10. a first terminal post; 11. a second terminal; 12. a sleeve; 13. a pressure spring; 14. a through hole; 15. a positioning spring; 16. a positioning groove; 17. a foot pad; 18. a scale plate; 19. a knob.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a resistor comprises a shell 1, a rotating shaft 2 is rotatably mounted in the shell 1, an insulating cylinder 3 is mounted on the rotating shaft 2, clamping grooves are axially formed in the surface of the insulating cylinder 3, four groups of clamping grooves are arrayed, a resistor plate 4 is fixedly clamped in the clamping grooves, a first contact 5 is mounted on the side wall of the shell 1, the first contact 5 is in contact with the end face of the insulating cylinder 3, a conductive sliding rod 6 is fixedly arranged at the upper end of the shell 1, a second contact 8 is slidably connected onto the conductive sliding rod 6, the second contact 8 is in contact with the surface of the insulating cylinder 3, a first wiring terminal 10 and a second wiring terminal 11 are fixedly mounted on the outer wall of the shell 1, the first wiring terminal 10 is electrically connected with the conductive sliding rod 6, the second wiring terminal 11 is connected with the first contact 5, and the first contact 5.

Referring to fig. 1, a conductive sliding sleeve 7 is slidably sleeved on the conductive sliding rod 6, the second contact 8 is installed on the conductive sliding sleeve 7, and a handle 9 is installed at the upper end of the conductive sliding sleeve 7.

Referring to fig. 3-5, a sleeve 12 is fixedly connected to the lower end of the conductive sliding sleeve 7, one end of the second contact 8 is slidably inserted into the sleeve 12, a compression spring 13 is installed in the sleeve 12, a through hole 14 is formed in the side wall of the housing 1, a positioning spring 15 is arranged in the through hole 14, and the second contact 8 is always in contact with the resistance plate 4 to form a passage in the up-and-down movement process by the arrangement of the compression spring 13; the first contact 5 is inserted into the through hole 14, the first contact 5 is connected with the positioning spring 15, the end portion of the resistance plate 4 is provided with the positioning groove 16, the positioning groove 16 is matched and clamped with the first contact 5, the first contact 5 is clamped with the positioning groove 16 in the left-right moving process through the positioning spring 15, the first contact 5 is in contact with the resistance plate 4, and the positioning is carried out while a passage is formed.

Referring to fig. 1-2, in order to stably place the device, the bottom of the housing 1 is fixed with foot pads 17, the foot pads 17 are disposed on two sides of the housing 1, the upper portion of the housing 1 is provided with a scale plate 18, one end of the rotating shaft 2 is fixed with a knob 19, and the precise adjustment is facilitated by the scale plate 18.

The working principle is as follows: when the resistance adjusting device is used, a wiring is connected with the first binding post 10 and the second binding post 11, so that the first binding post 10, the conductive sliding rod 6, the second contact 8, the resistance plate 4, the first contact 5 and the second binding post 11 form a resistance adjusting path, the rotating shaft 2 is rotated firstly according to a required resistance range, the insulating cylinder 3 is controlled to rotate, the appropriate resistance plate 4 is rotated to be in contact with the second contact 8, four groups of resistance plates 4 with different resistance ranges are mounted on the insulating cylinder 3, the adjustable range of resistance is enlarged, adjustment and replacement are convenient, the second contact 8 is driven to slide on the resistance plate 4 by the aid of the push handle 9, the size of the resistance is convenient to adjust, fine adjustment of the resistance is achieved, the structure is simple, the operation is convenient, the application range of the resistance can be enlarged, and the practicability is high.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A resistor comprising a housing (1), characterized in that: the rotary shaft (2) is rotatably mounted in the shell (1), the insulating cylinder (3) is mounted on the rotary shaft (2), a clamping groove is axially formed in the surface of the insulating cylinder (3), four groups of clamping grooves are arranged in an array, a resistance board (4) is fixedly clamped in the clamping groove, a first contact (5) is mounted on the side wall of the shell (1), the first contact (5) is in contact with the end face of the insulating cylinder (3), a conductive sliding rod (6) is fixed at the upper end of the shell (1), a second contact (8) is connected onto the conductive sliding rod (6) in a sliding manner, the second contact (8) is in contact with the surface of the insulating cylinder (3), a first wiring terminal (10) and a second wiring terminal (11) are fixedly mounted on the outer wall of the shell (1), the first wiring terminal (10) is electrically connected with the conductive sliding rod (6), and the second wiring terminal (11) is connected with the first contact (5), the first contact (5) is electrically connected with the conductive sliding rod (6).

2. A resistor according to claim 1, characterized in that: the conductive sliding sleeve (7) is sleeved on the conductive sliding rod (6) in a sliding mode, the second contact (8) is installed on the conductive sliding sleeve (7), and the handle (9) is installed at the upper end of the conductive sliding sleeve (7).

3. A resistor according to claim 2, characterized in that: the lower end of the conductive sliding sleeve (7) is fixedly connected with a sleeve (12), one end of the second contact (8) is inserted in the sleeve (12) in a sliding mode, and a pressure spring (13) is installed in the sleeve (12).

4. A resistor according to claim 1, characterized in that: the side wall of the shell (1) is provided with a through hole (14), a positioning spring (15) is arranged in the through hole (14), the first contact (5) is inserted in the through hole (14), and the first contact (5) is connected with the positioning spring (15).

5. A resistor according to claim 1, characterized in that: and a positioning groove (16) is formed in the end part of the resistance plate (4), and the positioning groove (16) is matched and clamped with the first contact (5).

6. A resistor according to claim 1, characterized in that: the bottom of casing (1) is fixed with callus on the sole (17), callus on the sole (17) set up the both sides at casing (1).

7. A resistor according to claim 1, characterized in that: the upper portion of casing (1) is provided with scale plate (18), the one end of pivot (2) is fixed with knob (19).