A cover, a knocking device and a working device

Abstract

The present application relates to a kind of cover, knocking device and operation device, the cover includes first shell and second shell, the inside of the second shell is provided with accommodating space, the first shell is sleeved in the outside of the second shell, air cavity is formed between the first shell and the second shell, inner air hole is provided on the second shell, the air cavity is communicated with the accommodating space by the inner air hole, outer air hole is provided on the second shell, the air cavity is communicated with the outside by the outer air hole, the inner air hole is greater than the outer air hole;The cover, knocking device and operation device can sound insulation, water isolation, the knocking device and operation device using the cover can reduce noise, can also be underwater operation.

Description

Technical Field

[0001] The present invention relates to the field of rust removal machinery, and in particular to a cover body, a knocking device and an operating device. Background Art

[0002] At present, the rust removal methods on the market can be mainly divided into shot blasting, sand blasting and wire drawing without acid washing.

[0003] Shot blasting utilizes the high-speed operation of mechanical equipment to eject steel shots of a certain size through the centrifugal force of the blasting head. The shots violently collide with the material being cleaned, removing rust. Automatic shot blasting equipment primarily consists of a shot blaster, a wear-resistant rubber belt, an auger, a hoist, a separator, a feed conveyor, a dust collector, and electrical equipment. Sandblasting utilizes high-pressure air to extract quartz sand and spray it onto the surface of a component. A complete suction-type dry sandblasting machine generally consists of six systems: the structural system, the medium power system, the piping system, the dust removal system, the control system, and the auxiliary system. Wire drawing rust removal without pickling is primarily used for rust removal of wire rods. A non-pickling, shelling, and rust removal machine primarily consists of a five-wheel shelling mechanism, an adjustable cross-parabolic wire brush wheel, a fully enclosed rust removal chamber, a forced lubrication device, a wire drawing die frame, and an electrical control system. Therefore, whether it is a shot blasting machine, a sandblasting machine, or a non-acid-washing wire drawing machine, all rust removal requires a lot of equipment, which is bulky and difficult to move. Based on this, our company has designed a small and easy-to-move knocking device; however, this knocking device currently has the disadvantages of being noisy during the knocking process and cannot be used underwater. Summary of the Invention

[0004] Based on this, the present invention provides a cover body that can eliminate noise and is waterproof.

[0005] The technical solution adopted by the present invention is a cover body, including a first shell and a second shell, the interior of the second shell is provided with an accommodating space, the first shell is arranged on the outside of the second shell, an air cavity is formed between the first shell and the second shell, the second shell is provided with an inner air hole, the air cavity and the accommodating space are connected through the inner air hole, the second shell is provided with an outer air hole, the air cavity is connected with the outside through the outer air hole, and the inner air hole is larger than the outer air hole.

[0006] Preferably, the cover body further comprises a support frame, the first shell and the second shell are both sealed and fixed to the support frame, and the air cavity is divided into a plurality of independent pressure air cavities by the support frame.

[0007] Preferably, the support frame includes a plurality of support rods, and the support rods form a plurality of hexagonal pressure air cavities.

[0008] Preferably, the inner side of the support rod is recessed to form an inner groove, and the inner air hole is arranged corresponding to the inner groove; the outer side of the support frame is recessed to form an outer groove, and the outer air hole is arranged corresponding to the outer groove.

[0009] Preferably, the inner groove is larger than the outer groove, and the inner groove and the outer groove are staggered; the number of inner air holes corresponding to each inner groove is greater than the number of outer air holes corresponding to each outer groove.

[0010] Preferably, a frame is provided on the opening side of the cover body, a circle of sealing strip is fixed on the frame, and the sealing strip is flexible; the sealing strip extends in a direction away from the air cavity and extends out of the frame.

[0011] Preferably, the cover body includes a fixed portion and a movable portion, the fixed portion is provided with an opening adapted to the movable portion, the movable portion and the fixed portion are detachably connected, and a through hole is formed between the fixed portion and the movable portion.

[0012] Preferably, the cover includes a fixing frame and a plurality of sound insulation panels, each of the sound insulation panels includes at least a first shell and a second shell, and the first shell and the second shell are fixed on the fixing frame.

[0013] The present invention also provides a knocking device, comprising a knocking mechanism and a cover body as described in any one of the above items, wherein the knocking mechanism is located in the accommodating space, and the knocking mechanism comprises a knocking mechanism body and a bullet, an air cavity is provided on the knocking mechanism body, and the bullet is movably connected to the air cavity, and an external gas distribution mechanism supplies gas to the air cavity, and the gas enters the outside through the air cavity, and the gas drives the bullet to reciprocate relative to the air cavity.

[0014] The present invention further provides an operating device, comprising an operating mechanism, an inflation mechanism, and the cover body described in any one of the above items, wherein the operating mechanism is located in the accommodating space, and the inflation mechanism is communicated with the accommodating space.

[0015] The cover body of the present invention includes a accommodating space and an air cavity, and the accommodating space and the air cavity are connected, and the air cavity is connected to the outside world through an airway. When the air pressure in the accommodating space increases, the air flow will flow into the air cavity. When the air pressure in the air cavity increases, the gas in the air cavity will flow to the outside world through the airway. Since the air flow from the air cavity to the outside world has to pass through the airway, the flow of air is subject to resistance, so the air pressure in the accommodating space will be greater than the air pressure in the air cavity, and the air pressure of the air cavity will be greater than the atmospheric pressure in the outside world.

[0016] Since sound waves propagate at different frequencies in spaces with different air pressures, people cannot hear the noise generated inside the cover, and the cover can effectively block the noise.

[0017] In addition, if the air pressure in the accommodating space is large enough and the air pressure in the air cavity is also greater than the external air pressure / water pressure, the external air / water will not be able to enter the air cavity and the accommodating space, which can prevent the air / water outside the cover from entering the cover, thereby playing a waterproof role. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the accompanying drawings, and the drawings are not drawn to scale with actual size. The emphasis is on illustrating the subject matter of the present invention.

[0019] Figure 1 This is a diagram showing the overall structure of the cover body according to a preferred embodiment of the present invention;

[0020] Figure 2 This is a diagram showing the overall structure of the cover body of a preferred embodiment of the present invention after removing part of the first shell;

[0021] Figure 3 This is a partial structural diagram of the sound insulation board and frame of a preferred embodiment of the present invention;

[0022] Figure 4 This is a partial structural diagram of the support frame with the sealing strip installed in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings.

[0024] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0026] like Figure 1-4As shown, the technical solution adopted by the present invention is a housing, comprising a first shell 11 and a second shell 12. The interior of the second shell 12 is provided with an accommodating space 10. The first shell 11 is sleeved onto the exterior of the second shell 12, forming an air cavity 50 between the first shell 11 and the second shell 12. The second shell 12 is provided with an inner air hole 120, which connects the air cavity 50 to the accommodating space 10. The second shell 12 is provided with an outer air hole 110, which connects the air cavity 50 to the outside world. The inner air hole 120 is larger than the outer air hole 110. When the air pressure in the accommodating space 10 increases, air flows into the air cavity 50 through the inner air holes 120. When the air pressure in the air cavity 50 increases, the gas in the air cavity 50 flows to the outside through the outer air holes 110. Because the inner air holes 120 are larger than the outer air holes 110, the amount of air flowing into the air cavity 50 is less than the amount flowing out of the air cavity 50, forming a certain air pressure in the air cavity 50, resulting in the air pressure in the accommodating space 10 being greater than the air pressure in the air cavity 50, and the air pressure in the air cavity 50 being greater than the atmospheric pressure outside. Because sound waves propagate at different frequencies in spaces with different air pressures, people cannot hear the noise generated inside the cover, and the cover can effectively block noise. In addition, if the air pressure in the accommodating space 10 is high enough and the air pressure in the air cavity 50 is also greater than the external air pressure / water pressure, the external air / water cannot enter the air cavity 50 and the accommodating space 10, thus preventing air / water outside the cover from entering the cover, thus achieving a waterproof effect.

[0027] It should be noted that when the inner pores 120 are larger than the outer pores 110, it means that the sum of the opening areas of all inner pores 120 is larger than the sum of the areas of all outer pores 110. For example, the inner pores 120 and the outer pores 110 are the same size, but there are more inner pores 120 than there are outer pores 110. Another example is when the number of inner pores 120 and the number of outer pores 110 are the same, but a single inner pore 120 is larger than a single outer pore 110. These are all cases where the inner pores 120 are larger than the outer pores 110. The amount of gas entering the air cavity 50 is greater than the amount of gas exiting the air cavity 50, causing the air pressure within the air cavity 50 to be greater than the atmospheric pressure (or water pressure).

[0028] refer to Figure 2 and Figure 4 The cover body also includes a support frame 5, a first shell 11 is located on the inner side of the support frame 5 and is sealed with the support frame 5; the second shell 12 is located on the outer side of the support frame 5 and is also sealed with the support frame 5; the air cavity 50 is divided into multiple independent pressure air cavities 501 by the support frame 5.

[0029] In a preferred embodiment, the support frame 5 includes multiple support rods, which enclose multiple hexagonal pressure air chambers 501. Specifically, the support rods enclose multiple regular hexagonal pressure air chambers 501. The regular hexagonal structure is more stable and easier to deform. Whether the cover is square or round, the regular hexagonal shape can be easily adjusted to suit the shape of the cover as needed.

[0030] In a preferred embodiment, the inner side of the support frame 5 is recessed to form an inner groove 5252, which communicates with the air cavity 50, and the inner air holes 120 are provided correspondingly to the inner groove 5252. The outer side of the support frame 5 is recessed to form an outer groove 51, which communicates with the outside world, and the outer air holes 110 are provided correspondingly to the outer groove 51. Airflow enters the groove from the inner air holes 120, then flows through the inner groove 51 into the air cavity 50, then flows from the air cavity 50 to the outer groove 51, and finally flows from the outer groove 51 to the outside world.

[0031] In a preferred embodiment, the inner groove 5252 is larger than the outer groove 51, and the inner groove 5252 and the outer groove 51 are offset. The inner air hole 120 is arranged opposite the inner groove 5252. When the pressure air chamber 501 is polygonal, the inner groove 5252 and the outer groove 51 are located on the support rod corresponding to different sides of the pressure air chamber 501. This can extend the airflow's residence time within the air chamber 50, increase the resistance to airflow from the air chamber 50 to the outside world, and increase the pressure difference between the air pressure within the air chamber 50 and the outside world. In addition, it can also increase the strength of the support rod.

[0032] refer to Figure 4 In a preferred embodiment, the cover body has a frame 3 disposed on the opening side thereof. A fixing groove 30 is formed on the frame 3, and a flexible sealing strip 6 is fixed within the fixing groove 30. The sealing strip 6 extends away from the air cavity 50 and extends beyond the frame. The sealing strip 6 provides sound insulation and water resistance. Furthermore, when the pressure within the accommodating space 10 becomes excessive, the sealing strip 6 can be dislodged, releasing some gas from the sealing strip 6 and, at the same time, blowing out rust residue removed during the rust removal process from the accommodating space 10.

[0033] refer to Figure 2 In a preferred embodiment, the cover body includes a fixed part 60 and a movable part 6, the fixed part 60 is provided with an opening adapted to the movable part, the movable part 6 and the fixed part 60 are detachably connected, and a through hole 601 is formed between the fixed part 60 and the movable part 6. During installation, the fixed part 60 is installed on the knocking mechanism, the slide rail (or fixed rod) on the knocking mechanism passes through the through hole 601, and then the movable part 6 is fixed to the fixed part 601. The provision of the movable part 6 can fix the cover body to the operating equipment. It should be noted that the fixed part 60 and the movable part 6 are both assembled by at least the first shell 11 and the second shell 12.

[0034] In the preferred embodiment, the cover comprises a fixed frame 2 and a plurality of soundproof panels 1, each of which comprises at least a first shell 11 and a second shell 12, and the first shell 11 and the second shell 12 are fixed on the fixed frame 2. The frame can increase the cavity of the cover. In production, the first shell 11 and the second shell 12 can be assembled and fixed to form the soundproof panel 1 and then installed on the fixed frame 2, or the first shell 11 and the second shell 12 can be directly installed on the fixed frame 2. The cover is also provided with a fixing ring 4.

[0035] The application also provides a knocking device comprising a knocking mechanism and the cover as described above, wherein the knocking mechanism is located in the accommodation space 10, the knocking mechanism comprises a knocking mechanism body and a bullet, the knocking mechanism body is provided with a gas cavity 50, the bullet is movably connected in the gas cavity 50, and an external gas matching mechanism supplies gas to the gas cavity 50, the gas enters the outside through the gas cavity 50, and the gas drives the bullet to reciprocate relative to the gas cavity 50.

[0036] The application also provides a working device comprising a working mechanism, an inflation mechanism and the cover as described above, wherein the working mechanism is located in the accommodation space 10, and the inflation mechanism is in communication with the accommodation space 10.

[0037] The technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

[0038] The above-mentioned embodiments only express the specific implementation of the application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A cover body, characterized in that: The device comprises a first shell and a second shell, wherein the interior of the second shell is provided with an accommodating space, the first shell is sleeved on the exterior of the second shell, an air cavity is formed between the first shell and the second shell, the second shell is provided with an inner air hole, the air cavity and the accommodating space are connected through the inner air hole, and the second shell is provided with an outer air hole, the air cavity is connected to the outside through the outer air hole; It also includes a support frame, the first shell and the second shell are both sealed and fixed to the support frame, and the air cavity is divided into a plurality of independent pressure air cavities by the support frame; The support frame includes a plurality of support rods, and the support rods enclose a plurality of hexagonal pressure air chambers; The inner side of the support rod is recessed to form an inner groove, and the inner air hole is arranged corresponding to the inner groove; the outer side of the support frame is recessed to form an outer groove, and the outer air hole is arranged corresponding to the outer groove; The inner pores are larger than the outer pores, which means that the sum of the opening areas of all the inner pores is larger than the sum of the areas of all the outer pores; further, the inner groove is larger than the outer groove, and the inner groove and the outer groove are staggered; the number of inner pores corresponding to each inner groove is greater than the number of outer pores corresponding to each outer groove; The opening side of the cover body is provided with a frame, and a circle of sealing strip is fixed on the frame, and the sealing strip is flexible; the sealing strip extends in a direction away from the air cavity and extends out of the frame; The inner groove and the outer groove are located on the support rods corresponding to different sides of the pressure air cavity, so that the airflow stays in the air cavity for a longer time, increases the resistance of the airflow flowing from the air cavity to the outside world, increases the pressure difference between the air pressure in the air cavity and the outside world, and increases the strength of the support rod.

2. The cover according to claim 1, wherein: The cover body includes a fixed part and a movable part. The fixed part is provided with an opening adapted to the movable part. The movable part and the fixed part are detachably connected. A through hole is formed between the fixed part and the movable part.

3. The cover according to claim 1, wherein: The cover includes a fixing frame and a plurality of sound insulation boards. Each of the sound insulation boards includes at least a first shell and a second shell. The first shell and the second shell are fixed on the fixing frame.

4. A striking device, characterized in that: It includes a knocking mechanism and the cover body described in any one of claims 1 to 3 above, the knocking mechanism is located in the accommodating space, the knocking mechanism includes a knocking mechanism body and a bullet, an air cavity is opened on the knocking mechanism body, the bullet is movably connected to the air cavity, an external gas distribution mechanism supplies gas to the air cavity, the gas enters the outside through the air cavity, and the gas drives the bullet to reciprocate relative to the air cavity.

5. A working device, characterized in that: It comprises an operating mechanism, an inflation mechanism and the cover body according to any one of claims 1 to 3, wherein the operating mechanism is located in the accommodating space, and the inflation mechanism is communicated with the accommodating space.

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