Switch box of extra-low voltage vibrating rod and extra-low voltage vibrating rod

Abstract

The utility model relates to a switch box of an extra-low voltage vibration rod and the extra-low voltage vibration rod, comprising a low voltage switch electrically connected with a first cable input line and a first cable output line, and a switch housing with a switch accommodating through hole, at least part of the first cable input line and at least part of the first cable output line extend into the switch shell, the low-voltage switch is located in the switch containing through hole, a switch waterproof pad is arranged in the switch shell, and the switch waterproof pad is provided with a switch containing deformable part extending into the switch containing through hole. At least part of the low-voltage switch is accommodated in the switch accommodating deformable part. The low-voltage switch box has the advantages that a gap between a low-voltage switch and a switch shell in the prior art is filled by adding the switch waterproof pad, multiple protections are set, the protection performance of the switch box main body is further improved, and the defects of poor switch contact or short-circuit burnout and the like caused by dust, silt and liquid are overcome.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering equipment, and particularly relates to a switch box and an ultra-low voltage vibrator such as a 42V or 50V 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, there are no effective protective measures for the switches of vibrators used for concrete. In the construction environment, there are a lot of dust and mud and liquid. Without isolation measures, dust and mud and liquid can easily enter the switch box, leading to dangers such as poor contact or short circuit and burnout. Utility Model Content

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

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

[0006] A switch box for an ultra-low voltage vibrator includes a low-voltage switch electrically connecting a first cable input line and a first cable output line. The switch box structure of the vibrator also includes a switch housing with a switch receiving through hole. At least a portion of the first cable input line and at least a portion of the first cable output line extend into the switch housing, and the low-voltage switch is located within the switch receiving through hole. A switch waterproof pad is provided within the switch housing, and the switch waterproof pad has a switch receiving deformable portion extending into the switch receiving through hole. At least a portion of the low-voltage switch is housed within the switch receiving deformable portion, and a deformation gap is left between the outer wall of the switch receiving deformable portion and the wall of the switch receiving through hole.

[0007] Furthermore, the deformation gap is a deformation gap with an acute angle.

[0008] Furthermore, the switch waterproof pad is fitted to the inner wall of the switch housing.

[0009] Furthermore, the switch waterproof pad is fixedly connected to the switch housing by a number of fasteners distributed on the outer edge of the inner opening of the switch receiving through hole.

[0010] Furthermore, the switch housing includes a first switch housing and a second switch housing that are interlocked, and the outer edge of the switch waterproof pad has a sealing portion embedded in the interlocking part of the first switch housing and the second switch housing.

[0011] Furthermore, the sealing part is connected to the first switch housing via a first concave-convex sealing structure, and the sealing part is connected to the second switch housing via a second concave-convex sealing structure.

[0012] Furthermore, the first concave-convex sealing structure includes a first sealing groove and a first sealing protrusion that match each other, with either the first sealing groove or the first sealing protrusion located in the sealing portion and the other located in the first switch housing.

[0013] Furthermore, the second concave-convex sealing structure includes a second sealing groove and a second sealing protrusion that match each other, with either the second sealing groove or the second sealing protrusion located in the sealing portion and the other located in the second switch housing.

[0014] Furthermore, the switch box structure also includes switch contact protection capacitors that are electrically connected to the first cable input line and the first cable output line respectively and are connected in parallel with the low-voltage switch.

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

[0016] Compared with existing technologies, the advantages of this application are: by adding a waterproof gasket to the switch, the gap between the low-voltage switch and the switch housing in the prior art is filled, and multiple protections are set up to further improve the protection performance of the switch box body, and solve the defects such as poor switch contact or short circuit burnout caused by dust and mud liquid. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the main structure of the switch box of the ultra-low voltage vibrating rod of this utility model.

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

[0019] Figure 3 This diagram shows the circuit connection between the switch contact protection capacitor and the switch of this utility model.

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

[0021] In the figure, there are: switch box 2, low-voltage switch A2, switch housing 20, first switch housing 20-1, second switch housing 20-2, switch receiving through hole 200, housing extension tube 201, switch waterproof gasket 21, switch receiving deformable part 210, deformation gap 22, fastener 23, sealing part 24, first sealing groove 25, first sealing protrusion 26, second sealing groove 27, second sealing protrusion 28, switch contact protection capacitor 29, cable sleeve 33, inner convex annular sealing part 330, first clamping part 35, second clamping part 36, rubber tube R, third clamping part 36-2, first cable input line S2, first cable output line S, vibrator body 1, modulation control box body 3, and power plug 4. 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] like Figure 1 As shown, the switch box of the ultra-low voltage vibrator is located at the ultra-low voltage vibrator conductor for switching power on and off. Specifically, it includes a low-voltage switch A2 electrically connected to the first cable input line S2 and the first cable output line S. The switch box structure of the vibrator also includes a switch housing 20 with a switch receiving through hole 200, providing a robust shell for the entire switch box and protecting the internal components from mechanical damage. Specifically, at least a portion of the first cable input line S2 and at least a portion of the first cable output line S extend into the switch housing 20. This is to protect the connection ends of the first cable input line S2 and the first cable output line S, and to isolate the connection ends from the outside environment, further improving the safety of the entire device. The low-voltage switch A2 is located within the switch receiving through hole 200, and a switch waterproof gasket 2 is provided inside the switch housing 20. 1. The switch waterproof pad 21 has a switch receiving deformable part 210 extending into the switch receiving through hole 200. At least a portion of the low-voltage switch A2 is housed in the switch receiving deformable part 210, and a deformation gap 22 is left between the outer wall of the switch receiving deformable part 210 and the hole wall of the switch receiving through hole 200. In this embodiment, the switch waterproof pad 21 uses an elastic soft material and completely covers the low-voltage switch A2 to ensure that during use, the switch waterproof pad 21 can automatically adjust its shape when subjected to external pressure or internal pressure changes. The deformation gap 22 provides space for the deformation of the switch waterproof pad 21, further enhancing the sealing effect and preventing sealing failure caused by temperature changes or mechanical vibration. This prevents water and solid dust particles in the environment from entering the switch housing 20, thereby extending the service life of the low-voltage switch A2.

[0028] Specifically, in this embodiment, the deformation gap 22 is a deformation gap with an acute angle. Its shape can be designed according to the specific operating conditions. At the same time, the deformation gap 22 is directly injection molded when manufacturing the switch housing 20, without the need for subsequent processing, which simplifies the processing flow.

[0029] Furthermore, regarding the aforementioned switch waterproof gasket 21, the switch waterproof gasket 21 is fixedly connected to the switch housing 20 by several fasteners 23 distributed on the outer edge of the inner opening of the switch receiving through hole 200. Under the action of these fasteners 23, the switch waterproof gasket 21 can further conform to the inner wall of the switch housing 20, forming a multi-level sealing structure. This design, through the pressure applied by the evenly distributed fasteners 23, causes the edge of the switch waterproof gasket 21 to undergo compression deformation, thereby eliminating the assembly gap between it and the inner wall of the switch housing 20. It can maintain dynamic sealing performance even during the reciprocating motion of the low-pressure switch A2 actuator, ensuring effective prevention of liquid penetration.

[0030] In this embodiment, the switch housing 20 specifically includes a first switch housing 20-1 and a second switch housing 20-2 that interlock with each other. To further ensure sealing and waterproofing, the outer edge of the switch waterproof gasket 21 has a sealing portion 24 embedded at the interlocking point of the first switch housing 20-1 and the second switch housing 20-2. This sealing portion adopts a toothed structure design, such as... Figure 2 As shown, its cross-section has a toothed pattern. Specifically, the sealing part 24 is connected to the first switch housing 20-1 through a first toothed seal structure, and the sealing part 24 is connected to the second switch housing 20-2 through a second toothed seal structure. It engages with the first switch housing 20-1 and the second switch housing 20-2 at the mating surfaces, ensuring a uniform preload force during the assembly of the switch housing 20. In particular, this structure, in conjunction with the sealing design of the main body of the switch waterproof gasket 21, achieves all-around waterproof protection for the switch housing 20 under both static and dynamic conditions.

[0031] Specifically, the first concave-convex sealing structure includes a first sealing groove 25 and a first sealing protrusion 26 that match each other. Either the first sealing groove 25 or the first sealing protrusion 26 is located in the sealing portion 24, and the other is located in the first switch housing 20-1. In this embodiment, to improve production efficiency, the first sealing protrusion 26 is located in the first switch housing 20-1, while the first sealing groove 25 is located in the sealing portion 24. Similarly, the second concave-convex sealing structure is the same as the first concave-convex sealing structure. The second concave-convex sealing structure includes a second sealing groove 27 and a second sealing protrusion 28 that match each other. Either the second sealing groove 27 or the second sealing protrusion 28 is located in the sealing portion 24, and the other is located in the second switch housing 20-2. In this embodiment, the second sealing groove 27 is located in the sealing portion 24, and the second sealing protrusion 28 is located in the second switch housing 20-2.

[0032] Example 2

[0033] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference lies in the structure, which describes the protection measures for the switch box of the ultra-low voltage vibrator in Embodiment 1.

[0034] like Figure 3 As shown, the switch box structure also includes a switch contact protection capacitor 29 that is electrically connected to the first cable input line S2 and the first cable output line S respectively and is connected in parallel with the low-voltage switch A2.

[0035] The aforementioned switch contact protection capacitor 29 provides multiple protection functions for the low-voltage switch A2, effectively improving the overall performance and reliability of the switch. Its main functions include:

[0036] The switch contact protection capacitor 29 provides multiple protection functions for the low-voltage switch A2, effectively improving the overall performance and reliability of the switch. When the switch contacts open, the switch contact protection capacitor 29 can absorb the transient voltage generated between the contacts, reducing or eliminating the formation of arcs under high current conditions, thereby protecting the contacts from electrical erosion and extending the service life of the switch. Simultaneously, when the low-voltage switch A2 disconnects the load, the switch contact protection capacitor 29 can absorb the generated back electromotive force, suppressing voltage spikes and preventing overvoltage between the contacts, protecting the switch and related circuits from damage. This significantly enhances the stability and durability of the low-voltage switch A2 in harsh electrical environments, while reducing maintenance requirements and improving the overall system reliability.

[0037] Example 3

[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 switch box of the ultra-low voltage vibrator in Embodiment 1, this embodiment describes the first cable input line and the first cable output line of the switch box for the ultra-low voltage vibrator.

[0039] In this embodiment, the switch housing 20 in Embodiment 1 is further provided with housing extension cylinders 201 at both ends, which are at least partially fitted onto the first cable input line and the first cable output line, respectively. A cable sheath 33 is also provided at the connection point between the first cable input line S2 and the switch housing 20 in Embodiment 1. The cable sheath 33 is made of a high-performance elastic material (such as a rubber cable sheath) and has good waterproof, dustproof, and mechanical stability. One end is sealed to the housing extension cylinder 201 to ensure there are no gaps at the connection, thus preventing moisture and dust from entering the interior of the switch housing 20. The other end is tightly sealed to the first cable input line S2. This design not only protects the first cable input line S2 from external environmental corrosion but also enhances the cable's resistance to bending and tension. Furthermore, since the first cable input line S2 will frequently twist during practical use, the inner diameter of the cable sheath 33 is slightly larger than the diameter of the first cable input line S2.

[0040] Furthermore, to ensure that the cable sleeve 33 can be stably fixedly connected to the shell extension cylinder 201 during use, a first clamping member 35 is also provided on the cable sleeve 33 to fix the cable sleeve 33 axially to the shell extension cylinder 201 and to seal the shell extension cylinder 201 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 rings. The two ends of the rings are connected by bolts. By tightening the bolts, the rings are contracted, thereby achieving a tight fixation of the cable sleeve 33 and the shell extension cylinder 201.

[0041] 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 interior of the switch housing 20. 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.

[0042] 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.

[0043] The connection of the first cable output line S differs from that of the first cable input line S2. Specifically, a rubber tube R is fitted around the body of the first cable output line S. In this embodiment, the rubber tube R is different from the cable sheath 33. The rubber tube R must completely cover the first cable output line S, while the cable sheath 33 only partially covers the first cable input line S2.

[0044] Meanwhile, to ensure the connection stability and sealing of the rubber tube R, the aforementioned shell extension cylinder 201 is at least partially inserted into the rubber tube R, and a third clamping member 36-2 is also sleeved on the rubber tube R to fix the rubber tube R axially to the shell extension cylinder 201 and to seal the connection between the shell extension cylinder 201 and the rubber tube R. The style of the third clamping member 36-2 is the same as that of the first clamping member 35 and the second clamping member 36.

[0045] Example 4

[0046] 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 switch box of the ultra-low voltage vibrator in Embodiment 1, this embodiment includes a switch box for the ultra-low voltage vibrator.

[0047] 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.

[0048] like Figure 4 As 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.

[0049] 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. Switch box for very low voltage vibrating rods, comprising a low voltage switch (A2) electrically connected to a first cable input line (S2) and to a first cable output line (S), characterized in that, The switch box structure of the vibration rod further comprises a switch shell (20) with a switch accommodating through hole (200), at least part of the first cable input line (S2) and at least part of the first cable output line (S) extend into the switch shell (20), and the low-voltage switch (A2) is in the switch accommodating through hole (200), a switch waterproof pad (21) is arranged in the switch shell (20) and the switch waterproof pad (21) has a switch accommodating deformable part (210) extending into the switch accommodating through hole (200), at least part of the low-voltage switch (A2) is accommodated in the switch accommodating deformable part (210), and the outer wall of the switch accommodating deformable part (210) and the hole wall of the switch accommodating through hole (200) have a deformation gap (22).

2. The switch box for very low voltage vibrating rods according to claim 1, characterized in that, The deformation gap (22) is an acute angle deformation gap.

3. The switch box for very low voltage vibrating rods according to claim 1, characterized in that, The switch waterproof pad (21) is in close contact with the inner wall of the switch shell (20).

4. The switch box for very low voltage vibrating rods according to claim 1, characterized in that, The switch waterproof pad (21) is fixedly connected with the switch shell (20) through a plurality of fasteners (23) distributed on the outer edge of the switch accommodating through hole (200).

5. The switch box for very low voltage vibrating rods according to claim 1, characterized in that, The switch shell (20) comprises a first switch shell (20-1) and a second switch shell (20-2) that are buckled to each other, and the outer edge of the switch waterproof pad (21) has a sealing part (24) embedded in the buckling position of the first switch shell (20-1) and the second switch shell (20-2).

6. A switch box for very low voltage vibrating rods as claimed in claim 5, characterized in that The sealing part (24) is connected with the first switch shell (20-1) through a first concave-convex sealing structure, and the sealing part (24) is connected with the second switch shell (20-2) through a second concave-convex sealing structure.

7. A switch box for very low voltage vibrating rods as claimed in claim 6, characterized in that The first concave-convex sealing structure comprises a first sealing groove (25) and a first sealing protrusion (26) that match each other, and either one of the first sealing groove (25) and the first sealing protrusion (26) is arranged on the sealing part (24), and the remaining one is arranged on the first switch shell (20-1).

8. The switch box for very low voltage vibrating rods according to claim 6, characterized in that, The second concave-convex sealing structure comprises a second sealing groove (27) and a second sealing protrusion (28) that match each other, and either one of the second sealing groove (27) and the second sealing protrusion (28) is arranged on the sealing part (24), and the remaining one is arranged on the second switch shell (20-2).

9. The switch box for very low voltage vibrating rods according to claim 1, characterized in that, The switch box structure further comprises a switch contact protection capacitor (29) electrically connected with the first cable input line (S2) and the first cable output line (S) respectively and in parallel with the low-voltage switch (A2).

10. A very low voltage vibrating reed characterized by The extra-low voltage vibration rod comprises the switch box of the extra-low voltage vibration rod according to any one of claims 1-9.

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