Guide rail potentiometer

Abstract

The utility model discloses a guide rail potentiometer which comprises a machine body and a sliding contact slidably connected to the surface of the machine body, a positioning structure is arranged on the surface of the sliding contact, the positioning structure comprises connecting blocks fixedly connected to the two sides of the top of the sliding contact, and the interiors of the connecting blocks are movably connected with shaft rods through bearings. The two ends of the shaft rod penetrate to the outer sides of the connecting blocks and are fixedly connected with pressing plates, the sides, away from the shaft rod, of the pressing plates make contact with the surface of the machine body, and a transmission structure is arranged at the top of the sliding contact, can drive the pressing rods to swing and comprises stress plates fixedly connected to the inner sides of the pressing plates. According to the utility model, the positioning structure is arranged on the surface of the sliding contact, so that the sliding contact can stably stay at a specific position, the accuracy and the stability of potential adjustment are improved, the contact between the pressing plate and the surface of the machine body is realized through the design of the connecting block, the shaft rod and the pressing plate, and a foundation is provided for a subsequent transmission structure and positioning.

Description

Technical Field

[0001] The utility model relates to the technical field of guide rail potentiometers, in particular to a guide rail potentiometer. Background Art

[0002] The guide rail potentiometer is a common electronic component and an adjustable resistor. It adjusts the potential in the circuit by changing the position of the sliding resistor. It works based on the principle of sliding resistor and consists of a resistor bar and a sliding contact. The sliding contact can move along the resistor bar to change the resistance value in the circuit.

[0003] For example, the patent application number published on the China Patent Network is: 202122580364.X, and the patent name is: A dual-guide rail large-damping sliding potentiometer, comprising a base plate, a protective cover, and a slider, wherein the base plate is fixed to the bottom of the protective cover, the slider is located on the upper side of the base plate and moves on the inner side of the protective cover; the slider is connected to a first guide rail and a second guide rail, and the protective cover is provided with a first guide groove and a second guide groove for the first guide rail and the second guide rail to slide respectively, a top plate is fixed to the first guide rail and the second guide rail, an externally threaded column is fixed to the top plate, an internally threaded sleeve is sleeved on the outer side of the externally threaded column, a through hole is provided in the middle of the externally threaded column and the middle of the top plate, a round rod is provided in the internally threaded sleeve, the lower end of the round rod passes through the through hole and extends to the lower side of the top plate, the lower end of the round rod is connected to a damping pad, and the damping pad is located on the upper side of the protective cover. The sliding potentiometer of the utility model can solve the brush deflection problem of traditional potentiometers.

[0004] However, the structure of the existing sliding potentiometer is relatively simple, and the sliding contact of the sliding control is prone to displacement when subjected to external collision, which affects the resistance control effect and reduces the safety of the sliding potentiometer.

[0005] Therefore, it is necessary to redesign the guide rail potentiometer. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a guide rail potentiometer, which has the advantage of being easy to adjust and position, and solves the problem that the structure of the existing sliding potentiometer is relatively simple, and the sliding contacts of the sliding control are easily displaced when subjected to external collisions, resulting in the resistance control effect being affected and the safety of the sliding potentiometer being reduced.

[0007] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a guide rail potentiometer, comprising a body;

[0008] Sliding contacts that are connected to the surface of the body;

[0009] The surface of the sliding contact is provided with a positioning structure, and the positioning structure includes connecting blocks fixedly connected to both sides of the top of the sliding contact, and the interior of the connecting block is movably connected to a shaft rod through a bearing, and both ends of the shaft rod pass through the outside of the connecting block and are fixedly connected to a pressure plate, and the side of the pressure plate away from the shaft rod is in contact with the surface of the machine body, and a transmission structure is provided on the top of the sliding contact, and the transmission structure can drive the pressure rod to swing.

[0010] As a preferred embodiment of the present invention, the transmission structure includes a force-bearing plate fixedly connected to the inner side of the pressure plate, the top of the sliding contact is movably connected to a screw through a bearing, the top of the screw is fixedly connected to a rotating wheel, the surface of the screw is threadedly connected to a screw sleeve, the screw sleeve is located on the inner side of the pressure plate, the top of the screw sleeve is in contact with the bottom of the pressure plate, and the screw sleeve can squeeze the force-bearing plate during the rising process so that it carries the pressure plate to swing.

[0011] As a preferred embodiment of the present invention, a support frame is provided on the surface of the screw, both ends of the support frame extend to the outside of the screw sleeve and are fixedly connected to the top of the sliding contact, and the support frame and the screw sleeve are slidably connected.

[0012] As a preferred embodiment of the present invention, a limiting groove is provided on the surface of the support frame, and both sides of the screw sleeve are fixedly connected with limiting blocks located inside the limiting groove, and the limiting blocks are slidably connected to the limiting groove.

[0013] As a preferred embodiment of the present invention, the left side and the right side of the screw sleeve are movably connected to rollers via pins, and the outer surface of the roller is in contact with the surface of the pressure plate.

[0014] As a preferred embodiment of the present invention, both sides of the top of the body are fixedly connected with a supporting frame, and the outer side of the supporting frame is fixedly connected with an elastic frame, and the side of the elastic frame away from the supporting frame can contact the inner side of the pressure plate, and both ends of the elastic frame are fixedly connected with a positioning frame, and the side of the positioning frame away from the elastic frame extends to the outside of the body. When the pressure plate squeezes the elastic frame, the elastic frame can be deformed and carry the positioning frame to move inward. During the movement, the positioning frame can fix the cables connected to the two ends of the body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model provides a positioning structure on the surface of the sliding contact, so that the sliding contact can stay stably in a specific position, improving the accuracy and stability of potential adjustment. Through the design of the connecting block, the shaft rod and the pressure plate, the contact between the pressure plate and the surface of the body is achieved, providing a basis for subsequent transmission structure and positioning.

[0017] 2. The utility model drives the screw to rotate by rotating the wheel, thereby driving the screw sleeve to rise or fall. When the screw sleeve rises, it presses the force-bearing plate, causing the pressure plate to swing, thus achieving the positioning adjustment of the sliding contact, making the adjustment process more precise and controllable.

[0018] 3. The utility model provides stable support and guidance for the screw sleeve through the design of the support frame, ensuring that the screw sleeve slides smoothly on the screw rod and improving the accuracy and stability of adjustment.

[0019] 4. The utility model further limits the movement range of the screw sleeve through the design of the limit groove and the limit block, prevents the screw sleeve from deflecting or shaking during the sliding process, and improves the accuracy and reliability of adjustment.

[0020] 5. The utility model reduces the friction between the screw sleeve and the pressure plate through the design of the roller, making the screw sleeve smoother in the movement process and protecting the surface of the pressure plate from wear.

[0021] 6. The design of the elastic frame and positioning frame provides the rail potentiometer with an additional function, namely, cable fixation. When the pressure plate squeezes the elastic frame, the elastic frame deforms and drives the positioning frame inward, thereby clamping and fixing the cable. This not only facilitates cable management, but also improves the neatness and safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0025] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0026] In the figure: 1. body; 2. sliding contact; 3. positioning structure; 4. connecting block; 5. shaft; 6. pressure plate; 7. transmission structure; 8. force plate; 9. screw; 10. rotating wheel; 11. screw sleeve; 12. support frame; 13. limiting groove; 14. limiting block; 15. roller; 16. supporting frame; 17. elastic frame; 18. positioning frame. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figures 1 to 4 As shown, the present invention provides a guide rail potentiometer, comprising a body 1;

[0029] A sliding contact 2 slidably connected to the surface of the body 1;

[0030] A positioning structure 3 is provided on the surface of the sliding contact 2, and the positioning structure 3 includes connecting blocks 4 fixedly connected to both sides of the top of the sliding contact 2. The interior of the connecting block 4 is movably connected to a shaft 5 through a bearing. Both ends of the shaft 5 pass through the outside of the connecting block 4 and are fixedly connected to a pressure plate 6. The side of the pressure plate 6 away from the shaft 5 is in contact with the surface of the body 1. A transmission structure 7 is provided on the top of the sliding contact 2, and the transmission structure 7 can swing the pressure rod.

[0031] refer to Figure 3 The transmission structure 7 includes a force-bearing plate 8 fixedly connected to the inner side of the pressure plate 6. The top of the sliding contact 2 is movably connected to a screw 9 through a bearing. The top of the screw 9 is fixedly connected to a runner 10. The surface of the screw 9 is threadedly connected to a screw sleeve 11. The screw sleeve 11 is located on the inner side of the pressure plate 6. The top of the screw sleeve 11 contacts the bottom of the pressure plate 6. During the rising process, the screw sleeve 11 can squeeze the force-bearing plate 8 so that it carries the pressure plate 6 to swing.

[0032] As a technical optimization solution of the present invention, the screw 9 is rotated by rotating the wheel 10, thereby driving the screw sleeve 11 to rise or fall. When the screw sleeve 11 rises, it presses the force-bearing plate 8, causing the pressure plate 6 to swing, thereby achieving positioning adjustment of the sliding contact 2, making the adjustment process more precise and controllable.

[0033] refer to Figure 2 The surface of the screw 9 is provided with a support frame 12. Both ends of the support frame 12 extend to the outside of the screw sleeve 11 and are fixedly connected to the top of the sliding contact 2. The support frame 12 and the screw sleeve 11 are slidably connected.

[0034] As a technical optimization solution of the present invention, the design of the support frame 12 provides stable support and guidance for the screw sleeve 11, ensuring that the screw sleeve 11 slides smoothly on the screw rod 9, thereby improving the accuracy and stability of the adjustment.

[0035] refer to Figure 2A limiting groove 13 is provided on the surface of the support frame 12 , and both sides of the screw sleeve 11 are fixedly connected with a limiting block 14 located inside the limiting groove 13 , and the limiting block 14 and the limiting groove 13 are slidably connected.

[0036] As a technical optimization solution of the present invention, the design of the limit groove 13 and the limit block 14 further limits the movement range of the screw sleeve 11, preventing the screw sleeve 11 from deflecting or shaking during the sliding process, and improving the accuracy and reliability of the adjustment.

[0037] refer to Figure 3 The left and right sides of the screw sleeve 11 are movably connected with rollers 15 through pins, and the outer surface of the roller 15 contacts the surface of the pressure plate 6.

[0038] As a technical optimization solution of the present invention, the design of the roller 15 reduces the friction between the screw sleeve 11 and the pressure plate 6, making the screw sleeve 11 smoother in movement while protecting the surface of the pressure plate 6 from wear.

[0039] refer to Figure 4 , both sides of the top of the body 1 are fixedly connected with a carrier 16, and the outer side of the carrier 16 is fixedly connected with an elastic frame 17. The side of the elastic frame 17 away from the carrier 16 can contact the inner side of the pressure plate 6, and both ends of the elastic frame 17 are fixedly connected with a positioning frame 18. The side of the positioning frame 18 away from the elastic frame 17 extends to the outside of the body 1. When the pressure plate 6 squeezes the elastic frame 17, it can deform the elastic frame 17 and carry the positioning frame 18 to move inward. During the movement, the positioning frame 18 can fix the cables connected to the two ends of the body 1.

[0040] As a technical optimization solution of the present invention, the design of the elastic frame 17 and the positioning frame 18 provides the rail potentiometer with an additional function: cable fixation. When the pressure plate 6 squeezes the elastic frame 17, it deforms and drives the positioning frame 18 inward, thereby clamping and securing the cable. This not only facilitates cable management, but also improves the neatness and safety of the device.

[0041] The working principle and usage process of this utility model are as follows: When using a guide rail potentiometer, the sliding contact 2 slides on the surface of the body 1 to adjust the potential in the circuit as needed. In order to accurately control the position of the sliding contact 2, a positioning structure 3 is introduced. The positioning structure 3 is implemented by a connecting block 4, a shaft 5 and a pressure plate 6. When the position of the sliding contact 2 needs to be fixed, the transmission structure 7 comes into play. The core of the transmission structure 7 is the interaction between the screw 9, the sleeve 11, the force plate 8 and the pressure plate 6. The user rotates the wheel 10 at the top of the screw 9 to rotate the screw 9. Since the sleeve 11 is threadedly connected to the screw 9, the rotation of the screw 9 will cause the sleeve 11 to rise or fall on the screw 9. When the sleeve 11 rises, it will directly contact the bottom of the pressure plate 6 and apply an upward force. This upward force is transmitted to the pressure plate 6 through the force plate 8. Since the pressure plate 6 is connected to the connecting block 4 through the shaft 5, the pressure plate 6 will swing around the shaft 5. The swing of the pressure plate 6 changes its contact position with the surface of the body 1, thereby realizing the positioning of the sliding contact 2. When the pressure plate 6 swings and contacts the elastic frame 17 at the top of the body 1, the elastic frame 17 will deform. Positioning frames 18 are fixed at both ends of the elastic frame 17. The positioning frame 18 moves inward as the elastic frame 17 deforms. During this movement, the positioning frame 18 can clamp and fix the cables connected to both ends of the body 1 to prevent the cables from loosening or falling off.

[0042] To sum up: the guide rail potentiometer is provided with a positioning structure 3 on the surface of the sliding contact 2, so that the sliding contact 2 can stay stably in a specific position, thereby improving the accuracy and stability of the potential adjustment. Through the design of the connecting block 4, the shaft 5 and the pressure plate 6, the contact between the pressure plate 6 and the surface of the body 1 is achieved, providing a basis for the subsequent transmission structure 7 and positioning.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide rail potentiometer, comprising a body (1); A sliding contact (2) slidably connected to the surface of the body (1); Its characteristics are: The surface of the sliding contact (2) is provided with a positioning structure (3), and the positioning structure (3) includes connecting blocks (4) fixedly connected to both sides of the top of the sliding contact (2), and the interior of the connecting block (4) is movably connected to a shaft (5) through a bearing, and both ends of the shaft (5) pass through the outside of the connecting block (4) and are fixedly connected to a pressure plate (6), and the side of the pressure plate (6) away from the shaft (5) contacts the surface of the body (1), and the top of the sliding contact (2) is provided with a transmission structure (7), and the transmission structure (7) can swing with the pressure rod.

2. A guide rail potentiometer according to claim 1, characterized in that: The transmission structure (7) includes a force-bearing plate (8) fixedly connected to the inner side of the pressure plate (6); the top of the sliding contact (2) is movably connected to a screw (9) via a bearing; the top of the screw (9) is fixedly connected to a rotating wheel (10); the surface of the screw (9) is threadedly connected to a screw sleeve (11); the screw sleeve (11) is located on the inner side of the pressure plate (6); the top of the screw sleeve (11) contacts the bottom of the pressure plate (6); and the screw sleeve (11) can squeeze the force-bearing plate (8) during the rising process, causing it to swing with the pressure plate (6).

3. A guide rail potentiometer according to claim 2, characterized in that: A support frame (12) is sleeved on the surface of the screw rod (9), both ends of the support frame (12) extend to the outside of the screw sleeve (11) and are fixedly connected to the top of the sliding contact (2), and the support frame (12) and the screw sleeve (11) are slidably connected.

4. A guide rail potentiometer according to claim 3, characterized in that: A limiting groove (13) is provided on the surface of the support frame (12), and limiting blocks (14) located inside the limiting groove (13) are fixedly connected to both sides of the screw sleeve (11), and the limiting blocks (14) and the limiting groove (13) are slidably connected.

5. The guide rail potentiometer according to claim 2, characterized in that: The left and right sides of the screw sleeve (11) are movably connected to rollers (15) via pins, and the outer surface of the roller (15) contacts the surface of the pressure plate (6).

6. The guide rail potentiometer according to claim 1, characterized in that: Both sides of the top of the body (1) are fixedly connected to a supporting frame (16), and the outer side of the supporting frame (16) is fixedly connected to an elastic frame (17), and the side of the elastic frame (17) away from the supporting frame (16) can contact the inner side of the pressure plate (6), and both ends of the elastic frame (17) are fixedly connected to a positioning frame (18), and the side of the positioning frame (18) away from the elastic frame (17) extends to the outer side of the body (1), and when the pressure plate (6) squeezes the elastic frame (17), the elastic frame (17) can be deformed and carry the positioning frame (18) to move inward, and the positioning frame (18) during the movement can fix the cables connected to the two ends of the body (1).

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