Potentiometer convenient to assemble

Abstract

The utility model relates to the technical field of electronic components, in particular to a potentiometer convenient to assemble, which comprises a base and a potentiometer body, the potentiometer body is detachably mounted at one end of the base, a rotating shaft is arranged on the potentiometer body, and a motor for driving the rotating shaft to rotate is mounted on the base. A fixing plate is arranged on the base, a first through hole is formed in the fixing plate, a penetrating part capable of penetrating through the first through hole is arranged on the side, close to the output shaft, of the motor, a splicing mechanism used for limiting the motor is arranged at the end, away from the potentiometer body, of the base, and the splicing mechanism is detachably arranged on the base; the assembling steps of the potentiometer are simple, when the motor or the potentiometer body needs to be independently maintained and replaced, the splicing mechanism is disassembled firstly, then the motor is disassembled from the base, and therefore independent maintenance and replacement processing of all the components is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, in particular to a potentiometer which is easy to assemble. Background Art

[0002] Motor potentiometers are widely used in electronic audio-visual equipment, instrumentation, engineering machinery and other fields. They mainly include potentiometers and drive devices. The existing motor potentiometers are as follows:

[0003] A Chinese patent document with publication number CN201036101Y discloses a plastic-sealed motor potentiometer, which specifically discloses: it includes a horizontally placed axis, at least one group of potentiometers inserted on the axis, and a motor connected to the rear of the axis, and also includes a reduction device and a slipping device connected between the axis and the motor; it also includes a box-type housing, the motor is connected to the rear of the box-type housing, and the groups of potentiometers, reduction devices and slipping devices are sequentially encapsulated in the box-type housing; since the carbon sheet and the terminal are integrally formed with the potentiometer body through plastic encapsulation, the groups of potentiometers are made into a connected shape and are tightly attached together, with good sealing, thereby preventing performance degradation caused by dust and moisture; since the slipping device is provided, the axis and the reduction device are softly connected, which not only allows manual axis adjustment, but also prevents mechanical damage caused by excessive torque.

[0004] As can be seen from the above, each group of potentiometers, reduction devices and slip devices of the existing motor potentiometer are encapsulated in the box-type housing in sequence, and the motor is connected to the rear of the box-type housing; however, when the various components of the motor potentiometer need to be repaired and replaced, it is inconvenient to assemble and disassemble, and replacing the entire motor potentiometer increases the cost; therefore, a potentiometer that is easy to assemble is provided to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a potentiometer which is easy to assemble in view of the shortcomings of the prior art, so as to solve the technical problem that the prior motor potentiometer is inconvenient to assemble and disassemble.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A potentiometer that is easy to assemble, comprising a base and a potentiometer body, wherein the potentiometer body is detachably mounted on one end of the base, a rotating shaft is provided on the potentiometer body, and a motor for driving the rotating shaft to rotate is installed on the base; an embedding groove is provided on the end of the rotating shaft, and an embedding block that can be embedded in the embedding groove is fixedly provided on the output shaft of the motor;

[0008] A fixing plate is provided on the base, and a first through hole is provided on the fixing plate, an insertion portion that can pass through the first through hole is provided on the side of the motor close to the output shaft, and a splicing mechanism for limiting the motor is provided on the end of the base away from the potentiometer body, and the splicing mechanism is detachably arranged on the base.

[0009] Furthermore, a fixing ring is provided on one side of the potentiometer body close to the rotating shaft, and a pair of mirror-image-arranged spring sheets are fixedly provided on the base, and the fixing ring is clamped between the spring sheets.

[0010] Furthermore, a ring-shaped limiting groove is provided on the side of the fixing ring close to the spring sheet, and a limiting protrusion which can be embedded in the limiting groove is provided on the side of the spring sheet close to the fixing ring.

[0011] Furthermore, the splicing mechanism includes a baffle plate for use with a fixed plate and a splicing block fixedly arranged on the baffle plate, a splicing groove for the splicing block to be embedded in is provided on the base, a pair of slide grooves are provided in the splicing block, a clamping rod is slidably provided in each slide groove, and the ends of the clamping rod on both sides extend in directions away from each other to extend to the outside of the splicing block; a spring for applying force to the clamping rod is provided in each slide groove, and a pair of clamping grooves for the ends of the clamping rod to be embedded in are provided on the inner side wall of the splicing groove.

[0012] Furthermore, a second through hole is provided on the baffle, and a protrusion which can be embedded in the second through hole is provided on a side of the motor close to the baffle.

[0013] Furthermore, a beveled edge for contacting the end of the clamping rod is provided at the opening of the clamping slot.

[0014] Furthermore, the splicing block is fixed in the splicing groove by screws.

[0015] Furthermore, a plurality of terminals are provided on the motor, and metal sheets corresponding to the terminals are plugged into the base, one end of the metal sheet is welded to the corresponding terminal, and the other end extends to the bottom of the base.

[0016] The beneficial effects of the utility model are as follows: first, the potentiometer body is installed on the base, and then the insertion part on the motor is inserted into the first through hole on the fixed plate, and at the same time, the embedding block will be embedded in the embedding groove, thereby completing the connection between the motor output shaft and the rotating shaft; finally, the splicing mechanism is fixed on the base to limit the motor, and with the cooperation of the splicing mechanism and the fixed plate, the motor is stably installed on the base, thereby completing the assembly of the potentiometer, the assembly steps are simple, and when it is necessary to repair and replace the motor or the potentiometer body separately, the splicing mechanism is first disassembled, and then the motor is disassembled from the base, thereby realizing separate repair and replacement of each component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the utility model from another perspective.

[0019] Figure 3 It is an exploded view of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the splicing mechanism of the utility model.

[0021] Reference numerals include:

[0022] 1. Base; 2. Mounting groove; 3. Potentiometer body; 4. Rotating shaft; 5. Embedded groove; 6. Fixed ring; 7. Spring piece; 8. Limiting groove; 9. Limiting protrusion; 10. Fixed plate; 11. First through hole; 12. Motor; 13. Insertion part; 14. Embedded block; 15. Protrusion; 16. Splicing mechanism; 161. Baffle; 162. Splicing block; 163. Splicing groove; 164. Slide groove; 165. Clamping rod; 166. Spring; 167. Clamping groove; 168. Bevel; 169. Second through hole; 17. Terminal; 18. Metal sheet. DETAILED DESCRIPTION

[0023] The following is a detailed description of a potentiometer that is easy to assemble according to the present invention in conjunction with the accompanying drawings.

[0024] like Figure 1-3 As shown, an embodiment of the utility model of a potentiometer that is easy to assemble includes a base 1 and a potentiometer body 3, a mounting groove 2 is provided on one end of the base 1, and the potentiometer body 3 is installed on the base 1 through the mounting groove 2, wherein a transversely arranged rotating shaft 4 is provided on the potentiometer body 3, and a motor 12 for driving the rotating shaft 4 to rotate is installed on the base 1, and the rotating shaft 4 is driven to rotate by the motor 12, so that the potentiometer body 3 operates to adjust the resistance value or voltage. However, in order to realize the detachable connection between the motor 12 and the potentiometer body 3, a groove 5 is provided on the end of the rotating shaft 4, and an embedding block 14 that can be embedded in the groove 5 is fixed on the output shaft of the motor 12. After the potentiometer body 3 is installed on the base 1, the motor 12 is installed on the base 1, and the embedding block 14 is embedded in the groove 5 during installation, so that the rotating shaft 4 can be driven to rotate; and when the motor 12 or the potentiometer body 3 needs to be repaired or replaced separately, the motor 12 can be removed from the base 1, so that each component can be repaired and replaced separately. In addition, a reducer (not shown in the figure) is provided on the motor 12, and the speed of the motor 12 is adjusted by the reducer, thereby improving the accuracy of the rotation of the rotating shaft 4.

[0025] In order to stably install the potentiometer body 3 on the base 1, a fixing ring 6 is provided on the side of the potentiometer body 3 close to the rotating shaft 4, and the rotating shaft 4 passes through the fixing ring 6. A pair of mirror-arranged springs 7 are fixedly provided on the base 1, and the fixing ring 6 is clamped between the springs 7; when the potentiometer body 3 is installed on the base 1 from top to bottom, the springs 7 are just clamped between the springs 7, and the potentiometer body 3 is limited by the springs 7, so as to prevent the potentiometer body 3 from escaping from the mounting groove 2 during the subsequent installation process, so as to improve the installation efficiency. However, in order to improve the limiting effect of the spring 7, a ring-shaped limiting groove 8 is provided on the side of the fixing ring 6 close to the spring 7, and a limiting protrusion 9 that can be embedded in the limiting groove 8 is provided on the side of the spring 7 close to the fixing ring 6. When the spring 7 is clamped between the springs 7, the limiting protrusion 9 is just embedded in the limiting groove 8. Under the action of the limiting groove 8 and the limiting protrusion 9, the limiting effect of the spring 7 is further improved.

[0026] In order to realize the detachable installation of the motor 12, a fixing plate 10 is provided on the base 1, and the fixing plate 10 is placed on the side of the potentiometer body 3 close to the rotating shaft 4, a first through hole 11 is provided on the fixing plate 10, and an insertion portion 13 that can pass through the first through hole 11 is provided on the side of the motor 12 close to the output shaft. When installing the motor 12, the insertion portion 13 is first inserted into the first through hole 11, and at the same time, the embedding block 14 is embedded in the embedding groove 5, that is, the connection between the output shaft of the motor 12 and the rotating shaft 4 is completed; in addition, a splicing mechanism 16 for limiting the motor 12 is provided on the end of the base 1 away from the potentiometer body 3, and the splicing mechanism 16 is detachably arranged on the base 1. After the insertion portion 13 on the motor 12 is inserted into the first through hole 11, the splicing mechanism 16 is fixed on the base 1, and the motor 12 is limited by the cooperation of the splicing mechanism 16 and the fixing plate 10, so that the motor 12 is stably fixed on the base 1; the details are as follows.

[0027] like Figure 4As shown, the splicing mechanism 16 includes a baffle 161 for use with the fixing plate 10 and a splicing block 162 fixedly arranged on the baffle 161, wherein a splicing groove 163 for the splicing block 162 to be embedded is provided on the base 1, and after the splicing block 162 is embedded in the splicing groove 163, the baffle 161 and the base 1 can be spliced; however, in order to fix the baffle 161 on the base 1, a pair of slide grooves 164 are provided in the splicing block 162, and a clamping rod 165 is slidably provided in each slide groove 164, and the ends of the clamping rod 165 on both sides are respectively oriented in directions away from each other. It extends to the outside of the splicing block 162. In addition, each slide groove 164 is provided with a spring 166 for applying force to the card rod 165. When force is applied to the card rods 165 on both sides at the same time, the card rod 165 grooves slide in the direction of approaching each other, and the end of the card rod 165 located on the outside of the splicing block 162 slides into the splicing block 162, and the spring 166 is compressed. When the force on the card rod 165 stops, under the action of the compressed spring 166, the card rods 165 on both sides are pushed to slide in the direction away from each other, and the end of the card rod 165 is placed on the outside of the splicing block 162 again.

[0028] Furthermore, a pair of slots 167 for the ends of the clamping rod 165 to be embedded in are provided on the inner side wall of the splicing groove 163. When the splicing block 162 is completely embedded in the splicing groove 163, the ends of the clamping rod 165 located on the outside of the splicing block 162 are inserted into the slots 167, thereby clamping the splicing block 162 in the splicing groove 163 to fix the baffle 161 on the base 1; the motor 12 is blocked by the baffle 161 to prevent the insertion portion 13 on the motor 12 from detaching from the first through hole 11 on the fixing plate 10, so as to limit and install the motor 12. In addition, in order to facilitate the insertion of the clamping rod 165 into the clamping slot 167, a bevel 168 for contacting the end of the clamping rod 165 is provided at the opening of the clamping slot 167; before the splicing block 162 is inserted into the splicing slot 163, the end of the clamping rod 165 first contacts the bevel 168, and continues to apply force to the splicing block 162, and the end of the clamping rod 165 slides on the bevel 168 to push the clamping rods 165 on both sides to slide in a direction close to each other, and when the end of the clamping rod 165 moves to a specified position, under the action of the compression spring 166, the clamping rod 165 automatically inserts into the clamping slot 167, and under the action of the bevel 168, the baffle 161 is assembled. When the baffle 161 needs to be removed from the base 1, a large force is applied to the baffle 161 to make the end of the clamping rod 165 disengage from the clamping slot 167, thereby realizing the removal of the baffle 161 from the base 1. Additionally, in order to stably fix the baffle 161 on the base 1, bolts (such as Figure 4As shown in the figure, after the clamping rod 165 is clamped into the clamping groove 167, the splicing block 162 is fixed in the splicing groove 163 by bolts, so that the baffle 161 is more stably fixed on the base 1, thereby improving the assembly effect of the potentiometer.

[0029] In addition, in order to achieve the baffle 161 and the fixing plate 10 to fix the motor 12, a second through hole 169 is provided on the baffle 161, and a protrusion 15 that can be embedded in the second through hole 169 is provided on the side of the motor 12 close to the baffle 161. When the baffle 161 is fixed on the base 1, the protrusion 15 is embedded in the second through hole 169, and the insertion portion 13 on the motor 12 passes through the first through hole 11. Under the cooperation of the baffle 161 and the fixing plate 10, the motor 12 is fixed on the base 1; and when the motor 12 needs to be removed from the base 1, it can be removed from the base 1. A plurality of terminals 17 are provided on the motor 12, and a metal sheet 18 corresponding to the terminal 17 is inserted on the base 1. One end of the metal sheet 18 is soldered to the corresponding terminal 17, and the other end extends to the bottom of the base 1. The metal sheet 18 and the terminal 17 are used to provide power to the motor 12, so that the motor 12 runs to drive the potentiometer body 3 to operate.

[0030] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0031] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A potentiometer that is easy to assemble, characterized in that: The potentiometer body (3) comprises a base (1) and a potentiometer body (3), wherein the potentiometer body (3) is detachably mounted on one end of the base (1), a rotating shaft (4) is provided on the potentiometer body (3), and a motor (12) for driving the rotating shaft (4) to rotate is installed on the base (1); an embedding groove (5) is provided on the end of the rotating shaft (4), and an embedding block (14) that can be embedded in the embedding groove (5) is fixedly provided on the output shaft of the motor (12); A fixing plate (10) is provided on the base (1), and a first through hole (11) is provided on the fixing plate (10); an insertion portion (13) capable of passing through the first through hole (11) is provided on a side of the motor (12) close to the output shaft; a splicing mechanism (16) for limiting the position of the motor (12) is provided on an end of the base (1) away from the potentiometer body (3); and the splicing mechanism (16) is detachably arranged on the base (1).

2. A potentiometer that is easy to assemble according to claim 1, characterized in that: A fixing ring (6) is provided on one side of the potentiometer body (3) close to the rotating shaft (4), and a pair of mirror-image-arranged spring sheets (7) are fixedly provided on the base (1), with the fixing ring (6) being clamped between the spring sheets (7).

3. A potentiometer that is easy to assemble according to claim 2, characterized in that: A ring-shaped limiting groove (8) is provided on the side of the fixing ring (6) close to the spring sheet (7), and a limiting protrusion (9) that can be embedded in the limiting groove (8) is provided on the side of the spring sheet (7) close to the fixing ring (6).

4. A potentiometer that is easy to assemble according to claim 1, characterized in that: The splicing mechanism (16) comprises a baffle plate (161) for use with a fixed plate (10) and a splicing block (162) fixedly arranged on the baffle plate (161); a splicing groove (163) for the splicing block (162) to be embedded in is provided on the base (1); a pair of slide grooves (164) are provided in the splicing block (162); a clamping rod (165) is slidably provided in each slide groove (164), and the ends of the clamping rod (165) on both sides extend in directions away from each other to extend to the outside of the splicing block (162); a spring (166) for applying force to the clamping rod (165) is provided in each slide groove (164), and a pair of clamping grooves (167) for the ends of the clamping rod (165) to be embedded in are provided on the inner side wall of the splicing groove (163).

5. A potentiometer that is easy to assemble according to claim 4, characterized in that: A second through hole (169) is provided on the baffle plate (161), and a protrusion (15) that can be embedded in the second through hole (169) is provided on a side of the motor (12) close to the baffle plate (161).

6. A potentiometer that is easy to assemble according to claim 4, characterized in that: A bevel (168) for contacting the end of the clamping rod (165) is provided at the opening of the clamping groove (167).

7. A potentiometer that is easy to assemble according to claim 4, characterized in that: The splicing block (162) is fixed in the splicing groove (163) by screws.

8. The potentiometer that is easy to assemble according to claim 1, characterized in that: A plurality of terminals (17) are provided on the motor (12), and metal sheets (18) corresponding to the terminals (17) are plugged into the base (1). One end of the metal sheet (18) is welded to the corresponding terminal (17), and the other end extends to the bottom of the base (1).

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