Modulation control box of extra-low voltage vibrating rod and extra-low voltage vibrating rod

Abstract

The modulation control box comprises a modulation circuit board which is electrically connected with a first cable input line, the modulation circuit board is fixed on a modulation control shell through an overhead fixing structure, and the modulation circuit board is embedded in a pouring sealant layer in the modulation control shell. The first cable input wire penetrates out of the modulation control shell, a wire protecting sleeve is sleeved on the first cable input wire, and the wire protecting sleeve is connected with the modulation control shell in a sealing manner. The advantages are that the cable protection sleeve and the modulation control housing and the cable protection sleeve and the first cable input line are connected in a sealing manner, so that the dual sealing design of sealing connection is realized, the waterproof and dustproof performance of the equipment is greatly improved, and the modulation circuit board is fixed in the modulation control housing through the overhead fixing structure and is embedded in the pouring sealant layer, thereby improving the waterproof and dustproof performance of the equipment. The stability of the circuit board is enhanced, additional protection is provided through the pouring sealant layer, and connection looseness caused by vibration or external force is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering equipment, and particularly relates to a modulation control box for an ultra-low voltage vibrator such as 42V or 50V and the ultra-low voltage vibrator. Background Technology

[0002] A vibrator is a widely used tool in construction engineering, primarily used to improve the density and uniformity of concrete. Its working principle involves transmitting high-frequency vibrations generated by an internal motor to the concrete, expelling air bubbles and improving its compressive strength and durability.

[0003] In the existing technology, the connection between the modulation control box and the cable of the cement vibrator is not firm enough. It is easy to loosen due to vibration or external force, and even poor contact or short circuit may occur. At the same time, the connection between the cable and the modulation control box usually lacks effective sealing measures, which can easily lead to the entry of moisture, dust and other impurities, affecting the electrical performance and even causing equipment damage. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems by providing a modulation control box for an ultra-low voltage vibrator and an ultra-low voltage vibrator that can solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The modulation control box for an ultra-low voltage vibrator includes a modulation circuit board electrically connected to a first cable input line. The modulation circuit board is fixed to a modulation control housing via an overhead fixing structure and is embedded in a potting compound layer within the modulation control housing. The first cable input line extends out of the modulation control housing. A cable sheath is fitted onto the first cable input line. The cable sheath and the modulation control housing are sealed together, and there is a sealed connection between the cable sheath and the first cable input line.

[0007] Furthermore, the modulation control housing is provided with extension tubes on opposite sides, and one end of the cable sheath is fitted onto the extension tube and the two are sealed together.

[0008] Furthermore, the cable sheath is also fitted with a first clamping member that axially fixes the cable sheath to the extension cylinder and then seals the extension cylinder and the cable sheath together.

[0009] Furthermore, the inner wall of the other end of the cable sleeve has an inwardly convex annular sealing portion, which contacts the outer wall of the first cable input line and forms a seal.

[0010] Furthermore, the cable sheath is also fitted with a second clamping member that axially fixes the cable sheath to the first cable input line and then seals the first cable input line and the cable sheath together.

[0011] Furthermore, the cable sheath is a rubber cable sheath; the overhead fixing structure includes several overhead columns fixed inside the modulation control housing, the modulation circuit board is placed at the free end of the overhead column and fasteners connected to the overhead column are passed through the modulation circuit board.

[0012] Furthermore, the cable sleeve has an enlarged hole at one end near the inner wall of the modulation control housing, and the axial length of the extension tube is shorter than the axial length of the enlarged hole.

[0013] Furthermore, the inner diameter of the sheath is larger than the diameter of the first cable input wire.

[0014] Furthermore, the modulation control housing includes a first housing and a second housing that is fastened to the opening of the first housing, wherein the first housing and the second housing are sealed together by an annular protrusion and an annular groove through a convex-concave sealing fit.

[0015] As one application, this application also provides an ultra-low voltage vibrating rod, which includes a modulation control box for the ultra-low voltage vibrating rod.

[0016] Compared with existing technologies, the advantages of this application are as follows: This application achieves a double-sealed design by using a sealed connection between the cable sheath and the modulation control housing, as well as between the cable sheath and the first cable input line, which greatly improves the waterproof and dustproof performance of the equipment. At the same time, the modulation circuit board is fixed to the modulation control housing by an overhead fixing structure and embedded in the potting compound layer, which enhances the stability of the circuit board. The potting compound layer also provides additional protection to prevent the connection from loosening due to vibration or external force. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembly of the main components of the modulation control box of this utility model;

[0018] Figure 2 for Figure 1 Enlarged detail view of key components in area B;

[0019] Figure 3 This is a schematic diagram of the assembly of the main components of the modulation control box of this utility model without a potting compound layer;

[0020] Figure 4 This is a schematic diagram of the finished product of the ultra-low pressure vibrating rod in Example 2.

[0021] In the figure, the modulation control box body 3, modulation circuit board 30, modulation control housing 31, first housing 310, second housing 311, annular protrusion 312, annular groove 313, potting compound layer 32, cable sleeve 33, inner convex annular sealing part 330, enlarged hole 331, extension tube 34, first clamping member 35, second clamping member 36, overhead column 37, fastener 38, first cable input line S2, vibrator body 1, switch box 2, and power plug 4 are all included. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0026] Example 1

[0027] In this embodiment, the modulation control box body 3 has the function of modulating the power supply of ordinary electric tricycles, electric vehicles, etc. into the power supply form required for the vibrator, converting DC power into 50V / 200Hz three-phase AC power for use by the specially made low-voltage high-frequency concrete vibrator.

[0028] like Figures 2-3 As shown, the modulation control box body 3 includes an outermost modulation control housing 31 for accommodating components. A modulation circuit board 30, electrically connected to the external first cable input line S2, is fixed within the modulation control housing 31. Specifically, in this embodiment, a potting compound layer 32 is provided within the modulation control housing 31, and the modulation circuit board 30 is embedded in this potting compound layer 32, serving to assist in fixation and provide a sealing barrier. The potting compound layer 32 is made of high-performance insulating material, possessing excellent waterproof, moisture-proof, dustproof, and corrosion-resistant properties, effectively protecting the modulation circuit board 30 from external environmental factors, thereby extending its service life and ensuring stable operation. Furthermore, the filling of the potting compound layer 32 enhances the overall structural strength of the modulation control box body 3, enabling it to withstand a certain degree of external impact, further improving the product's reliability and durability.

[0029] Among them, such as Figures 1-2 As shown, the modulation control housing 31 includes a first housing 310 and a second housing 311 fastened to the opening of the first housing 310. The first housing 310 and the second housing 311 are sealed together by an annular protrusion 312 and an annular groove 313 through a concave-convex sealing fit. The mutual cooperation of the annular protrusion 312 and the annular groove 313 forms a reliable sealing interface, effectively preventing external moisture, dust and impurities from entering the modulation control box. Specifically, both the first housing 310 and the second housing 311 are provided with an annular protrusion 312 and an annular groove 313. In this embodiment, when the first housing 310 is fastened to the second housing 311, the annular protrusion 312 is inserted into the annular groove 313, forming a tight sealing fit. As a preferred embodiment, to further enhance the sealing effect, an elastic sealing ring or sealant is added between the annular protrusion 312 and the annular groove 313, which can improve the reliability of the seal and also compensate for the sealing gap caused by manufacturing tolerances or assembly errors to a certain extent.

[0030] In the sealing design of the modulation control box, the sealing connection of the cable sheath 33 plays a crucial role. The cable sheath 33 is made of a high-performance elastic material (such as a rubber cable sheath), providing excellent waterproofing, dustproofing, and mechanical stability. One end of it is sealed to the modulation control housing 31, ensuring no gaps at the connection point and preventing moisture and dust from entering the housing. The other end is tightly sealed to the first cable input line S2. This design not only protects the cable from external environmental corrosion but also enhances its bending and tensile strength. Furthermore, since the first cable input line S2 will frequently twist during use, the inner diameter of the cable sheath 33 is larger than the diameter of the first cable input line S2.

[0031] Specifically, the modulation control housing 31 is provided with extension cylinders 34 on opposite sides. One end of the cable sleeve 33 is fitted onto the extension cylinder 34 and the two are sealed together. The extension cylinder 34 provides a stable mounting base for the cable sleeve 33 and enhances the sealing performance. In addition, as an alternative, a threaded ring can be provided axially on the cylinder wall of the extension cylinder 34 to further improve the sealing between the extension cylinder 34 and the cable sleeve 33.

[0032] Furthermore, to ensure that the cable sleeve 33 can be stably fixedly connected to the extension cylinder 34 during use, a first clamping member 35 is also provided on the cable sleeve 33 to fix the cable sleeve 33 axially to the extension cylinder 34 and to seal the extension cylinder 34 and the cable sleeve 33. For example, the structural design of the first clamping member 35 is similar to a clamp (only an example, including but not limited to), including two semi-circular ring bodies. The two ends of the ring bodies are connected by bolts. By tightening the bolts, the ring bodies are contracted, thereby achieving a tight fixation of the cable sleeve 33 and the extension cylinder 34.

[0033] Meanwhile, the cable sleeve 33 has an enlarged hole 331 at one end near the inner wall of the modulation control housing 31. The axial length of the extension tube 34 is shorter than the axial length of the enlarged hole 331. This design allows the cable sleeve 33 to be smoothly fitted onto the extension tube 34 through the enlarged hole 331 when connected to the extension tube 34, forming a transition area between the two, thus providing more operating space for sealing and fixing.

[0034] Regarding the other end of the cable sleeve 33, as Figure 1 As shown, the inner wall of the other end of the cable sleeve 33 has an inwardly convex annular sealing portion 330. The inwardly convex annular sealing portion 330 contacts the outer wall of the first cable input line S2 and forms a seal. Through the tight fit between the inwardly convex annular sealing portion 330 and the outer wall of the first cable input line S2, external moisture, dust, and impurities are effectively prevented from entering the modulation control box. Specifically, the inwardly convex annular sealing portion 330 is made of a flexible and elastic material, such as rubber or silicone, which can automatically adapt to the outer diameter of the first cable input line S2 as it passes through, forming a tight seal.

[0035] Similarly, a second clamping member 36 is also fitted onto the cable sheath 33 to axially fix the cable sheath 33 to the first cable input line S2 and to seal the first cable input line S2 and the cable sheath 33 together. The structure of the second clamping member 36 is similar to that of the first clamping member 35. It is made of high-strength and elastic metal or composite material and can tightly clamp the cable sheath 33 and the first cable input line S2. The connection between the cable sheath 33 and the first cable input line S2 is not only reliably fixed in the axial direction, but also, with the assistance of the second clamping member 36, the sealing effect of the inner convex annular sealing part 330 is further enhanced.

[0036] In addition, regarding the fixing design of the modulation circuit board 30, such as Figure 3 As shown, the modulation circuit board 30 is fixed to the modulation control housing 31 via an overhead fixing structure. This structure includes several overhead columns 37 fixed within the modulation control housing 31. The modulation circuit board 30 is placed at the free end of each overhead column 37, and fasteners 38, which connect to the overhead columns 37, pass through the modulation circuit board 30. This overhead fixing design not only provides stable support for the modulation circuit board 30 but also ensures a certain space between it and the bottom of the modulation control housing 31, thus facilitating heat dissipation and uniform filling of the potting compound layer 32. The fasteners 38 are screws, bolts, or other mechanical connectors that, by engaging with the mounting holes on the modulation circuit board 30, firmly fix the modulation circuit board 30 to the overhead columns 37. Furthermore, the number and distribution of the overhead columns 37 can be optimized according to the size and weight of the modulation circuit board 30 to ensure uniform support in all directions. For example, placing overhead columns 37 at the four corners and center of the modulation circuit board 30 can effectively improve its fixing stability.

[0037] Example 2

[0038] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference lies in the fact that, for the modulation control box of the ultra-low voltage vibrator in Embodiment 1, this embodiment includes a modulation control box for the ultra-low voltage vibrator.

[0039] A vibrator is a widely used tool in construction engineering, primarily used to improve the density and uniformity of concrete. Its working principle involves transmitting high-frequency vibrations generated by an internal motor to the concrete, expelling air bubbles and improving its compressive strength and durability.

[0040] like Figure 4As shown, the ultra-low voltage vibratory bar includes a vibratory bar body 1, a switch box 2 and a power plug 4, and a modulation control box body 3 located between the power plug 4 and the switch box 2. The modulation control box body 3 is used for voltage transformation and current stabilization to ensure that the vibratory bar can obtain a stable and safe low voltage power supply during operation, thereby ensuring the reliable operation of the equipment and the safety of the user.

[0041] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. Modulation control box for very low voltage vibrating rods, comprising a modulation circuit board (30) electrically connected to a first cable input line (S2), characterized in that, The modulating circuit board (30) is fixed to the modulating control shell (31) by the overhead fixing structure, and is embedded in the potting glue layer (32) in the modulating control shell (31), the first cable input line (S2) is out of the modulating control shell (31), a wire sleeve (33) is sleeved on the first cable input line (S2), the wire sleeve (33) and the modulating control shell (31) are sealingly connected, and the wire sleeve (33) and the first cable input line (S2) are sealingly connected.

2. The modulation control box for a very low voltage vibrating rod according to claim 1, characterized in that, The modulating control shell (31) is provided with an extension cylinder (34) on each side, and one end of the wire sleeve (33) is sleeved on the extension cylinder (34) and sealingly connected therewith.

3. The modulation control box for a very low voltage vibrating rod according to claim 2, characterized in that, The wire sleeve (33) is further sleeved with a first clamping member (35) for axially fixing the wire sleeve (33) to the extension cylinder (34) and sealingly connecting the extension cylinder (34) and the wire sleeve (33).

4. The modulation control box for a very low voltage vibrating reed according to claim 1, wherein The other end of the wire sleeve (33) has an inner convex ring-shaped sealing part (330) on the inner wall, which is in contact with the outer wall of the first cable input line (S2) and forms a seal.

5. The modulation control box for a very low voltage vibrating reed according to claim 4, wherein The wire sleeve (33) is further sleeved with a second clamping member (36) for axially fixing the wire sleeve (33) to the first cable input line (S2) and sealingly connecting the first cable input line (S2) and the wire sleeve (33).

6. The modulation control box for a very low voltage vibrating rod according to any one of claims 1 to 5, characterized in that, The wire sleeve (33) is a rubber wire sleeve; the overhead fixing structure includes a plurality of overhead columns (37) fixed in the modulating control shell (31), the modulating circuit board (30) is placed on the free end of the overhead column (37), and the modulating circuit board (30) is provided with a fastener (38) connected to the overhead column (37).

7. The modulation control box for a very low voltage vibrating rod according to any one of claims 2 to 5, characterized in that, The wire sleeve (33) is provided with an expansion hole (331) near one end of the inner wall of the modulating control shell (31), and the axial length of the extension cylinder (34) is shorter than the axial length of the expansion hole (331).

8. The modulation control box for a very low voltage vibrating rod according to any one of claims 2 to 5, characterized in that, The inner diameter of the wire sleeve (33) is greater than the diameter of the first cable input line (S2).

9. The modulation control box for a very low voltage vibrating rod according to any one of claims 1 to 5, characterized in that, The modulating control shell (31) includes a first shell (310) and a second shell (311) buckled on the first shell (310) with an opening, and the first shell (310) and the second shell (311) are sealingly connected by a concave-convex sealing fitting annular protrusion (312) and an annular groove (313).

10. A very low voltage vibrating reed characterized by The very low voltage vibrating rod includes the modulating control box of the very low voltage vibrating rod according to any one of claims 1-9.

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