Mute treading hammer device based on magnetic induction
The silent step hammer device, which utilizes the principle of magnetic induction and a limit slot design, solves the problem of easy damage to silent step hammers, achieves accurate detection and noise reduction, and lowers the cost of use.
Patent Information
- Application Number
- CN202423001503.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Existing silent foot pedal devices are prone to damage, resulting in high operating costs, and the principles implemented through infrared, resistance, and laser methods are not stable enough.
It adopts a silent foot pedal device based on magnetic induction, which uses the law of electromagnetic induction to detect the position and force of the step. It achieves quick connection and positioning through limit slots and blocks, and the base pad reduces vibration and noise. It has a simple structure and a long service life.
It enables precise detection of stepping position and force, reduces device damage rate and noise, increases service life and reduces costs.
Smart Images
Figure CN223566299U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to musical instrument technical field, concretely is a mute foot pedal device based on magnetic induction. BACKGROUND
[0002] Electronic drum is a kind of electronic percussion instrument, and the design of electronic drum removes the middle physical transmission part, generates original data through the sensor of mute foot pedal device pedal, and transmits to drum sound source. Sound source controls the timbre of current mute foot pedal according to the opening and closing data of pedal. Therefore, although the design of electronic drum removes the traditional foot pedal frame, still can realize the diversity and change of timbre by using mute foot pedal trigger and controller combination. This design not only saves space, but also fully embodies the advantages of electronic equipment.
[0003] At present, in electronic drum, in order to imitate the foot pedal of original drum, electronic drum generally uses the vibration of bee calling piece to imitate the mute foot pedal of original drum, and the main function of mute foot pedal device is to detect the speed (force) and position of falling, but the existing mute foot pedal device is mostly realized by infrared, resistance and laser etc. However, mute foot pedal device is operated by treading, and the violent treading of some musicians leads to the easy damage of mute foot pedal device, which affects the use of musicians and increases the use cost, therefore, we propose a mute foot pedal device based on magnetic induction. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a mute foot pedal device based on magnetic induction, which has the advantages of simple structure, low manufacturing cost and long service life, and solves the problem that the existing mute foot pedal device is mostly realized by infrared, resistance and laser etc. However, mute foot pedal device is operated by treading, and the violent treading of some musicians leads to the easy damage of mute foot pedal device, which affects the use of musicians and increases the use cost.
[0005] To achieve the above object, the utility model provides the following technical scheme: a mute foot pedal device based on magnetic induction, including bottom plate and shell, the left end of shell inner chamber bottom is provided with the limiting sleeve, the inside of limiting sleeve is fixedly installed with coil, the middle end of shell inner chamber bottom is provided with guide seat, the upper end of the outer surface of guide seat is slidably connected with the slider extending to the upper of shell, the left end of slider is fixedly installed with the iron core corresponding with coil, the iron core is located above coil, and coil and iron core are adapted, the bottom of slider and the lower end of guide seat are sleeved with spring.
[0006] Preferably, the right end of the top of the bottom plate is fixedly connected with the positioning seat, and the left end of the top of the bottom plate is fixedly connected with the cushion block.
[0007] Preferably, the bottom of the shell is bonded with a bottom pad.
[0008] Preferably, the left and right sides of the inner cavity of the positioning seat are provided with limiting clamping grooves, and the left and right sides of the lower end of the shell are fixedly connected with limiting clamping blocks matched with the limiting clamping grooves.
[0009] Preferably, the upper end of the sliding block is fixedly installed with a treading block, and the top of the treading block is bonded with an antiskid pad.
[0010] Preferably, the front and rear sides of the treading block are movably connected with clamping columns, the side away from the treading block of the clamping column is fixedly connected with a supporting pedal, and the left end of the supporting pedal is attached to the top of the pad block.
[0011] Compared with the prior art, the utility model has the advantages that:
[0012] 1. The utility model discloses a drumming device, which can detect the specific position of a user striking a drum disc and know the specific force of striking the point, has simple structure, low manufacturing cost, avoids the use of various vulnerable structures, and prolongs the service life.
[0013] 2. The utility model discloses a drumming device, which is convenient for the quick connection and positioning between the shell and the bottom plate through the setting of the limiting clamping grooves and the limiting clamping blocks and the cooperation of the positioning seat, can reduce the vibration transmission during use, reduce noise, and protect the shell. DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.
[0015] Figure 1 It is the first view angle structure schematic diagram of the utility model;
[0016] Figure 2 It is the second view angle sectional structure schematic diagram of the utility model;
[0017] Figure 3 It is the shell sectional structure schematic diagram of the utility model;
[0018] Figure 4 It is the positioning seat structure schematic diagram of the utility model;
[0019] Figure 5 It is the basic principle schematic diagram of the utility model.
[0020] In the figure: 1, the base plate; 2, the positioning seat; 3, the cushion block; 4, the limiting block; 5, the shell; 6, the treading block; 7, the supporting pedal; 8, the non-slip pad; 9, the sliding block; 10, the coil; 11, the iron core; 12, the limiting sleeve; 13, the bottom pad; 14, the guide seat; 15, the spring; 16, the limiting slot; 17, the clamping column. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.
[0022] The base plate 1, the positioning seat 2, the cushion block 3, the limiting block 4, the shell 5, the treading block 6, the supporting pedal 7, the non-slip pad 8, the sliding block 9, the coil 10, the iron core 11, the limiting sleeve 12, the bottom pad 13, the guide seat 14, the spring 15, the limiting slot 16 and the clamping column 17 parts of the present application are general standard parts or parts known to those skilled in the art, and their structures and principles can be known by technical personnel through technical manuals or obtained through conventional experimental methods.
[0023] Embodiment one
[0024] Please refer to Figures 1-5 As shown in the figure, the utility model provides a technical scheme: a mute treading hammer device based on magnetic induction, including base plate 1 and shell 5, the left end of the inner chamber bottom of shell 5 is provided with limiting sleeve 12, the inside of limiting sleeve 12 is fixedly installed with coil 10, the middle end of the inner chamber bottom of shell 5 is provided with guide seat 14, the upper end of the outer surface of guide seat 14 is slidably connected with sliding block 9 extending to the upper of shell 5, the left end of sliding block 9 is fixedly installed with iron core 11 corresponding with coil 10, iron core 11 is located above coil 10, and coil 10 and iron core 11 are adapted, and spring 15 is sleeved between the bottom of sliding block 9 and the lower end of guide seat 14.
[0025] The working principle of the present technical scheme: the working principle of the mute treading hammer device based on magnetic induction is based on electromagnetic induction law. When the measured physical quantity (such as displacement) changes, the self-inductance coefficient or mutual inductance coefficient of the sensor coil 10 will change, thereby causing the inductance of the coil 10 to change. By measuring the change of the inductance, the value of the measured physical quantity can be determined.
[0026] Basic principle:
[0027] Inductance measurement formula:
[0028]
[0029] Where L represents the inductance, μ represents the permeability of the core, S represents the cross-sectional area of the core 11, N represents the number of turns of the coil source, l represents the magnetic circuit length of the core, and X represents the insertion depth of the core 11.
[0030] Combination Figure 5 As shown, it can be seen that after inserting the iron core 11, both the increment and relative increment of the coil inductance are proportional to the insertion depth X of the iron core 11.
[0031] Changes in inductance lead to changes in magnetic reluctance. We can calculate the change in displacement (X) of the iron core 11 by measuring changes in inductance or magnetic reluctance. If the magnetic field strength is evenly distributed over a large range within the coil 10, a larger linear displacement sensor can be obtained.
[0032] Practical operation:
[0033] like Figure 3 As shown, the iron core 11 is installed on the slider 9. When the slider 9 moves up and down, the iron core 11 moves synchronously. The coil 10 is fixed at the bottom of the inner cavity of the housing 5. When the iron core 11 moves up and down, it will be inserted into the coil 10. After the coil 10 is energized, the change in inductance of the coil 10 can be detected. The insertion length X of the iron core 11 analyzed above is proportional to the change in inductance ΔL. Therefore, we can detect the falling position of the slider 9. At the same time, by detecting the change rate of ΔL, we can calculate the falling speed of the slider 9, thus satisfying the two detection criteria of the controller to detect the falling speed (force) and position. Moreover, this detection method is relatively linear, which greatly facilitates the subsequent processing of the software. In addition, the structure is simple, which can meet the various pedaling operations of musicians and has a long service life.
[0034] Example 2
[0035] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a positioning seat 2 is fixedly connected to the right end of the top of the base plate 1, and a pad block 3 is fixedly connected to the left end of the top of the base plate 1. Limiting slots 16 are opened on both the left and right sides of the inner cavity of the positioning seat 2, and limiting blocks 4 that are adapted to the limiting slots 16 are fixedly connected to both the left and right sides of the lower end of the housing 5.
[0036] This technical solution facilitates quick connection and positioning between the housing 5 and the base plate 1 through the setting of the limiting slot 16 and the limiting block 4, and with the cooperation of the positioning seat 2.
[0037] Example 3
[0038] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a bottom pad 13 is adhered to the bottom of the housing 5.
[0039] The technical scheme: through the setting of the bottom pad 13, the vibration transmission when the mute hammer device is used can be reduced, the noise generation is reduced, and the shell 5 is protected.
[0040] Example four
[0041] On the basis of example one, the utility model discloses as shown in Figures 1-4 The top of the treading block 6 is attached with the antiskid pad 8.
[0042] The technical scheme: through the setting of the treading block 6 and the antiskid pad 8, the treading use of the mute hammer device is facilitated.
[0043] Example five
[0044] On the basis of example one, the utility model discloses as shown in Figures 1-4 The front and rear sides of the treading block 6 are movably connected with the clamping columns 17, the side, away from the treading block 6, of the clamping column 17 is fixedly connected with the supporting tread plate 7, and the left end of the supporting tread plate 7 is attached to the top of the pad block 3.
[0045] The technical scheme: through the cooperation of the clamping column 17, the supporting tread plate 7 can be quickly clamped with the treading block 6, and the setting of the supporting tread plate 7 can support the user's footstep, so that the comfort of the user is improved.
[0046] It is important to note that the constructions and arrangements shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements can be altered or varied. Thus, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without materially affecting the application. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described in the specification.
Claims
1. A magnetic induction based silent foot pedal device comprising a base plate (1) and a housing (5), characterized in that: The left end of the bottom of the inner cavity of the shell (5) is provided with a limiting sleeve (12), the inner side of the limiting sleeve (12) is fixedly installed with a coil (10), the middle end of the bottom of the inner cavity of the shell (5) is provided with a guide seat (14), the outer surface of the guide seat (14) is slidably connected with a sliding block (9) extending above the shell (5), the left end of the sliding block (9) is fixedly installed with an iron core (11) corresponding to the coil (10), the iron core (11) is above the coil (10), and the coil (10) and the iron core (11) are matched, and the bottom of the sliding block (9) and the lower end of the guide seat (14) are sleeved with a spring (15).
2. A magnetic induction based silent foot pedal device as claimed in claim 1, wherein: The right end of the top of the bottom plate (1) is fixedly connected with a positioning seat (2), and the left end of the top of the bottom plate (1) is fixedly connected with a cushion block (3).
3. A magnetic induction based silent foot pedal device as claimed in claim 1, wherein: The bottom of the shell (5) is bonded with a bottom pad (13).
4. A magnetic induction based silent foot pedal device as claimed in claim 2, wherein: The left and right sides of the inner cavity of the positioning seat (2) are both provided with a limiting clamping groove (16), and the left and right sides of the lower end of the shell (5) are both fixedly connected with a limiting clamping block (4) matched with the limiting clamping groove (16).
5. A magnetic induction based silent foot pedal device as claimed in claim 1, wherein: The upper end of the sliding block (9) is fixedly installed with a treading block (6), and the top of the treading block (6) is bonded with a non-slip pad (8).
6. A magnetic induction based silent foot pedal device as claimed in claim 5, wherein: The front and rear sides of the treading block (6) are both movably connected with a clamping column (17), one side of the clamping column (17) away from the treading block (6) is fixedly connected with a supporting pedal (7), and the left end of the supporting pedal (7) is attached to the top of the cushion block (3).