A wave absorbing device

Abstract

The present invention discloses a wave absorbing device, which includes a lifting assembly, a side shift assembly, and a wave absorbing assembly for absorbing electromagnetic waves; wherein the side shift assembly includes a support frame and a first power source, the wave absorbing assembly is slidably arranged on the support frame, and the first power source is used to drive the wave absorbing assembly to perform horizontal reciprocating motion; the lifting assembly includes a second power source, and the second power source is used to drive the support frame to perform vertical reciprocating motion. In the wave absorbing device of the present invention, the wave absorbing assembly can perform horizontal reciprocating motion and vertical reciprocating motion, and the range of absorbing electromagnetic waves is larger.

Description

Technical Field

[0001] The invention belongs to the technical field of electromagnetic wave absorption, and in particular relates to a wave absorbing device. Background Art

[0002] In the process of testing the transmittance of a broadband electronic warfare radome, since the operating frequency of the electronic warfare test antenna is usually 20Ghz~40Ghz, many reflected waves will be formed between the electronic warfare test antenna and the electronic warfare radome. Under the interference of reflected waves and clutter, the transmittance of the tested electronic warfare radome will exceed 100, affecting the actual electrical performance of the electronic warfare radome. Therefore, it is necessary to set up an absorbing structure to effectively eliminate the reflected waves and clutter formed between the electronic warfare test antenna and the electronic warfare radome.

[0003] Although the existing absorbing structures can effectively absorb reflected waves and clutter to a certain extent, they can only be fixed at specified positions and cannot be adjusted in height and horizontal position, which greatly reduces the absorbing range and has limited absorbing effects. In addition, the existing absorbing structures cannot be quickly and easily spliced ​​and installed, and are less practical. Summary of the invention

[0004] In view of the above problems, the present invention discloses a wave absorbing device to overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides a wave absorbing device, which comprises a lifting assembly, a side shift assembly and a wave absorbing assembly for absorbing electromagnetic waves;

[0007] The side shift assembly comprises a support frame and a first power source, the absorbing assembly is slidably arranged on the support frame, and the first power source is used to drive the absorbing assembly to perform horizontal reciprocating motion;

[0008] The lifting assembly includes a second power source, and the second power source is used to drive the support frame to perform vertical reciprocating motion.

[0009] Furthermore, the side shift assembly also includes an adjustment frame and a transmission rod;

[0010] The adjustment frame is arranged at one side end of the support frame, and a horizontal limiting hole is provided on the adjustment frame. One end of the transmission rod passes through the limiting hole and is fixedly connected to the absorbing component, and the transmission rod can only move axially in the limiting hole, and the other end of the transmission rod is transmission-connected to the first power source.

[0011] Further, the side shift assembly further comprises a first end face tooth and a second end face tooth;

[0012] The first end face gear is arranged on an end of the transmission rod away from the absorbing assembly, the first power source is in transmission connection with the second end face gear, an elastic member is arranged between the first end face gear and the adjustment frame, and the elastic member has a compression preload force to keep the first end face gear in contact with the second end face gear;

[0013] When the first power source drives the second end face tooth to rotate, an axial force is generated between the tooth tip inclined surface of the second end face tooth and the tooth tip inclined surface of the first end face tooth, driving the first end face tooth to alternately be in a meshing position and a non-meshing position with the second end face tooth, thereby driving the absorbing assembly to perform horizontal reciprocating motion.

[0014] Furthermore, the lifting assembly also includes a platform base, a first lifting plate, a second lifting plate, a first connecting plate, a second connecting plate, a connecting rod, a fixing rod and a sliding sleeve;

[0015] The fixing rod is fixed to the lower end surface of the supporting frame in the horizontal direction, the sliding sleeve is slidably mounted on the fixing rod, and connecting shafts perpendicular to the fixing rod are respectively extended at both ends of the sliding sleeve; the first lifting plate and the first connecting plate are hinged in the middle, the second lifting plate and the second connecting plate are hinged in the middle, the upper end of the first connecting plate and the upper end of the second connecting plate are respectively hinged to the connecting shafts at both ends of the sliding sleeve, the lower end of the first connecting plate and the lower end of the second connecting plate are respectively hinged to the platform base, the upper end of the first lifting plate and the upper end of the second lifting plate are respectively hinged to the supporting frame, and the lower end of the first lifting plate and the lower end of the second lifting plate are respectively hinged to the two ends of the connecting rod; the second power source drives the connecting rod to reciprocate horizontally, thereby driving the supporting frame to reciprocate vertically.

[0016] Furthermore, the lifting assembly also includes a screw rod and a connecting sleeve;

[0017] The screw rod is fixed to the upper end surface of the platform base through a bearing and is arranged parallel to the fixed rod; the connecting sleeve is provided with an internal thread that cooperates with the screw rod, the connecting sleeve is sleeved on the screw rod and fixedly connected to the connecting rod; the second power source drives the screw rod to rotate alternately in both directions, thereby driving the connecting rod to perform horizontal reciprocating motion.

[0018] Further, the lifting assembly also includes a control gear, a control frame and a toothless gear;

[0019] The control gear is fixedly connected to the screw rod, and the control frame is an annular structure with straight edges on the upper and lower sides. The control frame is slidably connected to the front end of the platform base through a dovetail groove, and can reciprocate horizontally relative to the platform base. The inner side of the upper side of the control frame is provided with a first tooth, and the inner side of the lower side of the control frame is provided with a second tooth. The toothless gear is provided at the power output end of the second power source and is alternately meshed with the first tooth and the second tooth respectively; when the second power source drives the toothless gear to rotate, and when the toothless gear is meshed with the first tooth, the control frame moves along one side of the horizontal direction, and when the toothless gear is meshed with the second tooth, the control frame moves along the other side of the horizontal direction;

[0020] A third tooth is disposed on the outer side of the upper side of the control frame, and the third tooth is meshed with the control gear for transmission; or a tooth plate is disposed on the outer side of the upper side of the control frame, and the tooth plate is meshed with the control gear for transmission.

[0021] Further, the absorbing assembly includes an absorbing frame;

[0022] The absorbing frame is fixedly connected to the transmission rod, the lower end of the absorbing frame is a T-shaped structure, the upper end surface of the support frame is provided with a T-shaped slot matching the T-shaped structure, and the T-shaped structure can slide in the T-shaped slot along the length direction of the slot;

[0023] The upper end surface of the absorbing frame is provided with first absorbing holes arranged in a path array, and at least one side end surface of the absorbing frame is provided with second absorbing holes arranged in a path array.

[0024] Furthermore, an auxiliary plate is fixed on the front end face and / or the rear end face of the absorbing frame;

[0025] The auxiliary plate is made of wave absorbing material.

[0026] Furthermore, the absorbing assembly further includes an auxiliary block;

[0027] The auxiliary block is a conical structure, the bottom end of the conical structure passes through the auxiliary plate and is fixedly connected to the absorbing frame, the tip of the conical structure is fixed with an auxiliary ball, and a through hole is opened on the auxiliary ball.

[0028] Furthermore, the absorbing frame adopts a split structure design, and two adjacent absorbing frames are detachably connected via a slide groove structure.

[0029] The advantages and beneficial effects of the present invention are:

[0030] In the absorbing device of the present invention, the absorbing component for absorbing electromagnetic waves is slidably arranged on the support frame, the absorbing component is driven to perform horizontal reciprocating motion on the support frame by the first power source, and the support frame is driven to perform vertical reciprocating motion by the second power source, thereby driving the absorbing component to perform reciprocating motion in the vertical direction, thereby realizing the adjustment of the absorbing component in the horizontal direction and the vertical direction, and increasing the range of electromagnetic wave absorption by the absorbing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0032] Figure 1 A three-dimensional structural diagram of an absorbing device in one embodiment of the present invention;

[0033] Figure 2 It is a three-dimensional structural diagram of a lifting assembly and a side shift assembly in one embodiment of the present invention;

[0034] Figure 3 for Figure 2 The three-dimensional structure diagram in is rotated by a certain angle;

[0035] Figure 4 It is a partial structural diagram of the side shift assembly;

[0036] Figure 5 for Figure 2 A magnified image of area A;

[0037] Figure 6 When the absorbing component adopts a split structure design, the three-dimensional structure diagram of the top absorbing frame;

[0038] Figure 7 When the absorbing component adopts a split structure design, the three-dimensional structure diagram of the bottom absorbing frame;

[0039] Figure 8 It is a three-dimensional structural diagram of the auxiliary block and the auxiliary ball.

[0040] In the figure: 1, support frame; 2, first power source; 3, second power source; 4, adjustment frame; 5, transmission rod; 6, first end face gear; 7, second end face gear; 8, elastic member; 9, synchronous wheel; 10, synchronous belt; 11, platform base; 12, first lifting plate; 13, second lifting plate; 14, first connecting plate; 15, second connecting plate; 16, connecting rod; 17, fixing rod; 18, sliding sleeve; 19, shaft rod; 20, screw rod; 2 1. Connecting sleeve; 22. Control gear; 23. Control frame; 24. Toothless gear; 25. Tooth plate; 26. Absorbing frame; 26-1. Top absorbing frame; 26-2. Bottom absorbing frame; 27. T-slot; 28. First absorbing hole; 29. ​​Second absorbing hole; 30. Auxiliary plate; 31. Auxiliary block; 32. Auxiliary ball; 33. Through hole; 34. Fixed plate; 35. First fixing hole; 36. Horizontal plate; 37. Pin; 38. Spring. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0042] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0043] For ease of understanding, Figure 1 The upper end / top end of the wave absorbing device is above. Figure 1 The lower end / bottom of the wave absorbing device is below. Figure 1 The left and right sides are the side ends of the wave absorbing device. Figure 1 The outer side is the front end of the wave absorbing device. Figure 1 The inner side is the rear end of the absorbing device.

[0044] Example 1

[0045] This embodiment provides a wave absorbing device, which includes a lifting component, a lateral displacement component, and a wave absorbing component for absorbing electromagnetic waves.

[0046] Specifically, Figure 1 and Figure 2As shown, the side shift assembly includes a support frame 1 and a first power source 2. The absorbing assembly is slidably arranged on the support frame 1. The first power source 2 drives the absorbing assembly to perform horizontal reciprocating motion on the support frame 1. The absorbing assembly expands the range of absorbing electromagnetic waves in the horizontal direction by means of horizontal reciprocating motion. In order to realize that the absorbing assembly is slidably arranged on the support frame, a T-shaped groove may be arranged on the upper surface of the support frame, and the bottom of the absorbing assembly is slidably arranged in the T-shaped groove. At this time, the first power source drives the absorbing assembly to perform horizontal reciprocating motion along the length direction of the T-shaped groove.

[0047] The lifting assembly includes a second power source 3, which is used to drive the support frame 1 to perform vertical reciprocating motion, thereby driving the absorbing assembly to perform vertical reciprocating motion. The absorbing assembly expands the range of absorbing electromagnetic waves in the vertical direction through vertical reciprocating motion.

[0048] In the absorbing device, an absorbing component for absorbing electromagnetic waves is slidably arranged on a support frame, the absorbing component is driven to perform horizontal reciprocating motion on the support frame by a first power source, and the support frame is driven to perform vertical reciprocating motion by a second power source, thereby driving the absorbing component to perform reciprocating motion in the vertical direction, thereby realizing adjustment of the absorbing component in the horizontal and vertical directions, and increasing the range of electromagnetic wave absorption by the absorbing component.

[0049] In this embodiment, if Figure 1 , Figure 2 and Figure 4 As shown, the side shift assembly also includes an adjustment frame 4 and a transmission rod 5.

[0050] The adjustment frame 4 is arranged at one side end of the support frame 1, and a horizontal limit hole is arranged on the adjustment frame 4. One end of the transmission rod 5 passes through the limit hole and is fixedly connected to the wave absorbing assembly, and the transmission rod 5 can only move axially in the limit hole, and the other end of the transmission rod 5 is transmission-connected to the first power source 2. When the first power source is an electric cylinder or a pneumatic cylinder, the piston rod of the electric cylinder or the pneumatic cylinder is fixedly connected to the transmission rod, and as the piston rod moves forward and backward, the wave absorbing assembly is driven to perform horizontal reciprocating motion through the transmission rod.

[0051] In order to allow the transmission rod to move only axially in the limiting hole, a gap is set between the transmission rod and the limiting hole, and the shape of the radial cross section of the limiting hole is non-circular, and the radial cross section of the transmission rod is adapted to the shape of the radial cross section of the limiting hole, or at least the radial cross section of the portion of the transmission rod in the limiting hole is adapted to the shape of the radial cross section of the limiting hole. The shape of the radial cross section of the limiting hole can be a polygon, such as a triangle, a quadrilateral, a pentagon or a hexagon, and the radial cross section of the transmission rod is also a corresponding polygon.

[0052] Furthermore, if Figure 1 , Figure 2 and Figure 4 As shown, the side shift assembly further includes a first face tooth 6 and a second face tooth 7 .

[0053] The first end face tooth 6 is arranged on the end of the transmission rod 5 away from the absorbing assembly, the first power source 2 is connected to the second end face tooth 7 by transmission, an elastic member 8 is arranged between the first end face tooth 6 and the adjusting frame 4, the elastic member 8 has a compression preload force, so that the first end face tooth 6 and the second end face tooth 7 are kept in contact; wherein the elastic member is preferably a spring, the spring is sleeved on the transmission rod 5, one end of the spring abuts against the adjusting frame 4, and the other end of the spring abuts against the first end face tooth 6. When the first power source is a motor, the motor drives the second end face tooth 7 to rotate, and then drives the absorbing assembly to move through the first end face tooth 6 and the transmission rod 5 in turn. wherein the motor is fixedly connected to the adjusting frame 4. In other embodiments, the motor may also be fixedly connected to the support frame 1.

[0054] The working principle of the side shift assembly is as follows: when the first power source (i.e., the motor) drives the second end face tooth to rotate, an axial force is generated between the tooth tip inclined surface of the second end face tooth and the tooth tip inclined surface of the first end face tooth, driving the first end face tooth away from the second end face tooth, so that the first end face tooth is in a non-meshing position with the second end face tooth. At this time, the first end face tooth drives the absorbing assembly to move in a direction away from the second end face tooth through the transmission rod; and due to the elastic force of the elastic member, the first end face tooth approaches the second end face tooth, so that the first end face tooth is in a meshing position with the second end face tooth. At this time, the first end face tooth drives the absorbing assembly to move in a direction close to the second end face tooth through the transmission rod; through the action of the axial force and the elastic force, the first end face tooth is alternately in a meshing position and a non-meshing position with the second end face tooth, thereby driving the absorbing assembly to perform horizontal reciprocating motion.

[0055] In this embodiment, if Figure 1 to Figure 3 As shown, the lifting assembly further includes a platform base 11 , a first lifting plate 12 , a second lifting plate 13 , a first connecting plate 14 , a second connecting plate 15 , a connecting rod 16 , a fixing rod 17 and a sliding sleeve 18 .

[0056] Specifically, the fixed rod 17 is fixed to the lower end surface of the support frame 1 in the horizontal direction, and the sliding sleeve 18 is slidably sleeved on the fixed rod 17, so that the sliding sleeve 18 can slide on the fixed rod 17, and connecting shafts perpendicular to the fixed rod 17 are respectively extended at both ends of the sliding sleeve 18; the first lifting plate 12 and the first connecting plate 14 are hinged in the middle, the second lifting plate 13 and the second connecting plate 15 are hinged in the middle, and an axle rod 19 is arranged between the two middle hinges, that is, the two ends of the axle rod 19 are respectively fixedly connected to the two middle hinges, so as to increase the strength of the lifting assembly and improve the supporting capacity. The upper end of the first connecting plate 14 and the upper end of the second connecting plate 15 are respectively hinged to the connecting shafts at both ends of the sliding sleeve 18, the lower end of the first connecting plate 14 and the lower end of the second connecting plate 15 are respectively hinged to the upper end surface of the platform base 11, the upper end of the first lifting plate 12 and the upper end of the second lifting plate 13 are respectively hinged to the lower end surface of the support frame 1, and the lower end of the first lifting plate 12 and the lower end of the second lifting plate 13 are respectively hinged to the two ends of the connecting rod 16; the second power source 3 drives the connecting rod 16 to reciprocate horizontally, thereby driving the support frame 1 to reciprocate vertically. When the second power source is an electric rod or a pneumatic cylinder, the piston rod of the electric rod or the pneumatic cylinder is fixedly connected to the connecting rod, and as the piston rod moves forward and backward, the connecting rod is driven to reciprocate horizontally.

[0057] The working principle of the lifting assembly is as follows: when the second power source drives the connecting rod away from the lower ends of the first lifting plate and the second lifting plate, the sliding sleeve slides in the direction away from the upper ends of the first connecting plate and the second connecting plate, and the support frame descends; when the second power source drives the connecting rod close to the lower ends of the first lifting plate and the second lifting plate, the sliding sleeve slides in the direction close to the upper ends of the first connecting plate and the second connecting plate, and the support frame rises. By alternately rising and falling the support frame, the wave absorbing assembly can achieve reciprocating motion in the vertical direction.

[0058] Furthermore, if Figure 1 to Figure 3 As shown, the lifting assembly further includes a screw rod 20 and a connecting sleeve 21 .

[0059] The screw rod 20 is fixed to the upper end surface of the platform base 11 through a bearing and is arranged parallel to the fixed rod 17; the connecting sleeve 21 is provided with an internal thread matching the screw rod 20, the connecting sleeve 21 is sleeved on the screw rod 20, and is fixedly connected to the connecting rod 16; in order to facilitate the sliding of the connecting sleeve 21 on the screw rod 20, the two ends of the screw rod 20 are respectively fixedly connected to the platform base 11 through bearings. The second power source 3 drives the screw rod 20 to rotate alternately in both directions, thereby driving the connecting rod 16 to reciprocate horizontally, thereby realizing the reciprocating motion of the support frame 1 in the vertical direction.

[0060] In addition, if Figure 1 , Figure 2 and Figure 5As shown, the lifting assembly further includes a control gear 22 , a control frame 23 and a toothless gear 24 .

[0061] Among them, the control gear 22 is fixedly connected to the screw rod 20, and the control frame 23 is an annular structure with straight edges on the upper and lower sides. For example, the control frame 23 is runway-shaped or rectangular. The control frame 23 is slidably connected to the front end of the platform base 11 through a dovetail groove, and can reciprocate horizontally relative to the platform base 11, that is, reciprocate left and right. A first tooth is provided on the inner side of the upper side of the control frame 23, and a second tooth is provided on the inner side of the lower side of the control frame 23. The toothless gear 24 is provided at the power output end of the second power source 3, and is alternately meshed with the first tooth and the second tooth respectively; the second power source 3 drives the toothless gear 24 to rotate, and when the toothless gear 24 meshes with the first tooth, the control frame 23 moves along one side in the horizontal direction, for example, the control frame 23 moves to the left side, and when the toothless gear 24 meshes with the second tooth, the control frame 23 moves along the other side in the horizontal direction, for example, the control frame 23 moves to the right side; the toothless gear 24 alternately meshes with the first tooth and the second tooth respectively, thereby driving the control frame to reciprocate between the left and right sides in the horizontal direction.

[0062] A tooth plate 25 is provided on the outer side of the upper side of the control frame 23, and the tooth plate 25 is meshed with the control gear 22 for transmission. When the control frame 23 reciprocates horizontally to the left and right sides, the tooth plate 25 meshes with the control gear 22 to drive the screw rod 20 to rotate alternately clockwise and counterclockwise.

[0063] In this embodiment, if Figure 1 , Figure 6 and Figure 7 As shown, the absorbing assembly includes an absorbing frame 26 .

[0064] Specifically, the absorbing frame 26 is fixedly connected to the transmission rod 5, the lower end of the absorbing frame 26 is a T-shaped structure, and the upper end surface of the support frame 1 is provided with a T-shaped slot 27 that matches the T-shaped structure, and the T-shaped structure can slide along the length direction of the slot in the T-shaped slot 27. Through the design of the T-shaped structure and the T-shaped slot 27, the absorbing frame 26 is limitedly fixed on the support frame 1, and the absorbing frame 26 can slide on the support frame 1.

[0065] Of course, the lower end of the absorbing frame and the upper end surface of the supporting frame may also be provided with other shapes of limiting structures to achieve the limiting connection between the absorbing frame and the supporting frame, which is also within the protection scope of the present application. For example, the lower end of the absorbing frame is an L-shaped structure, and the upper end surface of the supporting frame is provided with an L-shaped groove that matches the L-shaped structure.

[0066] In addition, the upper end surface of the absorbing frame 26 is provided with first absorbing holes 28 arranged in a path array, and at least one side end surface of the absorbing frame 26 is provided with second absorbing holes 29 arranged in a path array. In order to achieve a better absorbing effect, the end surfaces of both sides of the absorbing frame 26 are provided with second absorbing holes 29 arranged in a path array. By providing the first absorbing holes 28 and the second absorbing holes 29 arranged in a path array, electromagnetic waves above and on the left and right sides of the absorbing frame 26 can be effectively absorbed.

[0067] Furthermore, the number of absorbing frames can be set according to the absorbing requirements of the absorbing device. The absorbing assembly of this embodiment specifically includes two absorbing frames, and the two absorbing frames are arranged in parallel in the horizontal direction. At this time, the number of the transmission rod, the first end face tooth and the second end face tooth are all two, and the two transmission rods are fixedly connected to the two groups of absorbing assemblies respectively. In order to make the transmission structure simpler, such as Figure 1 , Figure 2 and Figure 4 As shown, a second end face tooth 7 is arranged at the power output end of the first power source 2, and another second end face tooth 7 is coaxially connected to the synchronous wheel 9. The first power source 2 drives the synchronous wheel 9 to rotate through the synchronous belt 10, and then drives the second end face tooth 7 connected to the synchronous wheel 9 to rotate. Of course, in other embodiments, when the absorbing assembly includes multiple absorbing frames, the first power source is directly connected to one of the second end face teeth by transmission, and is connected to the other second end face teeth by transmission through the synchronous wheel and the synchronous belt. Alternatively, multiple first power sources are provided to drive the corresponding absorbing frames respectively, so that each absorbing frame can move independently, thereby improving the flexibility of the movement of the absorbing frame.

[0068] In this embodiment, if Figure 1 , Figure 6 and Figure 7 As shown, auxiliary plates 30 are fixed to the front and rear surfaces of the absorbing frame 26. The auxiliary plates are made of absorbing materials, and the electromagnetic waves at the front and rear ends of the absorbing frame can be absorbed by the auxiliary plates. The size of the auxiliary plates 30 is the same as the size of the front and rear surfaces of the absorbing frame 26, so that the auxiliary plates 30 completely cover the front and rear ends of the absorbing frame 26. Of course, in other embodiments, the auxiliary plates may be fixed only to the front or rear surfaces of the absorbing frame.

[0069] Furthermore, in order to enhance the absorption of electromagnetic waves at the front and rear ends of the absorbing frame, as Figure 1 and Figure 6 to Figure 8 As shown, the absorbing assembly further includes an auxiliary block 31 .

[0070] Specifically, the auxiliary block 31 is a conical structure, the bottom end of which passes through the auxiliary plate 30 and is fixedly connected to the wave absorbing frame 26, and the tip of the conical structure is fixed with an auxiliary ball 32, and a through hole 33 is provided on the auxiliary ball 32, and electromagnetic waves are absorbed through the through hole 33. The auxiliary blocks are arranged in a path array outside the auxiliary plate, so that the effect of absorbing electromagnetic waves is better.

[0071] The absorbing component of this embodiment can perform dual absorption of electromagnetic waves at its front and rear ends. The first layer is the auxiliary ball absorbing electromagnetic waves, and the second layer is the auxiliary plate absorbing electromagnetic waves, thereby making the absorbing component have better absorbing ability.

[0072] In this embodiment, the absorbing frame adopts a split structure design, and two adjacent absorbing frames can be detachably connected in the height direction through a slide groove structure. When the absorbing frame needs to be set to a certain height, it is not conducive to the transportation of the absorbing device due to factors such as the appearance. Therefore, the absorbing frame can adopt a split structure design.

[0073] like Figure 1 , Figure 6 and Figure 7 As shown, this embodiment takes the splitting of the absorbing frame 26 into the top absorbing frame 26-1 and the bottom absorbing frame 26-2 as an example. A T-shaped slide groove is provided at the upper end of the bottom absorbing frame 26-2, and the side walls on both sides of the T-shaped slide groove have L-shaped structures extending outward. A T-shaped structure that cooperates with the T-shaped slide groove, and an L-shaped slide groove that cooperates with the L-shaped structure are provided at the lower end of the top absorbing frame 26-1. The splicing of the bottom absorbing frame 26-2 and the top absorbing frame 26-1 is achieved by the cooperation of the T-shaped slide groove and the L-shaped structure at the lower end of the bottom absorbing frame 26-2 and the T-shaped structure and the L-shaped slide groove at the upper end of the top absorbing frame 26-1. Of course, in other embodiments, the upper end of the bottom absorbing frame is provided with a T-shaped structure and an L-shaped slide groove, and the lower end of the top absorbing frame is provided with a T-shaped slide groove and an L-shaped structure. In order to achieve rapid fixation after splicing, a fixing plate 34 is provided at the front and rear ends of the T-shaped slide groove on the bottom absorbing frame 26-2, and a first fixing hole 35 is provided on the fixing plate 34. A transverse plate 36 is provided at the front and rear ends of the T-shaped structure on the top absorbing frame 26-1, and a second fixing hole is provided on the transverse plate 36. The absorbing assembly also includes a self-locking member, which passes through the second fixing hole and is inserted into the first fixing hole 35 to achieve fixed connection between the fixing plate 34 and the transverse plate 36.

[0074] Furthermore, the self-locking member includes a pin 37 and a spring 38, the spring 38 is sleeved on the pin 37, one end of the spring 38 is fixedly connected to the upper end of the pin 37, and the other end of the spring 38 is fixedly connected to the cross plate 36. The self-locking member is used as follows: when the top absorbing frame and the bottom absorbing frame are spliced, the pin is lifted to make the top absorbing frame and the bottom absorbing frame plug and connect, and the positions of the first fixing hole and the second fixing hole correspond, and then the pin is lowered. Due to the action of the spring elastic force, the lower end of the pin passes through the second fixing hole and is inserted into the first fixing hole, thereby realizing the rapid splicing and fixing of the top absorbing frame and the bottom absorbing frame. The absorbing device of this embodiment can realize rapid disassembly and splicing installation, which is convenient for the transportation and storage of the absorbing device and has better practicality.

[0075] Of course, when the absorbing frame is split into multiple pieces, the above structure can also be used to achieve rapid splicing and installation between two adjacent absorbing frames, which is also within the protection scope of this application.

[0076] Example 2

[0077] The difference from Example 1 is that a third tooth is provided on the outer side of the upper side of the control frame, eliminating the tooth plate structure, and the third tooth meshes with the control gear for transmission, thereby realizing the transmission connection between the control frame and the control gear, making the transmission structure simpler.

[0078] Example 3

[0079] The difference from Example 1 is that, in order to facilitate the processing of the wave absorbing device, the auxiliary block and the auxiliary ball are manufactured in an integrated manner.

[0080] The above is only a specific embodiment of the present invention. Under the above teachings of the present invention, those skilled in the art can make other improvements or modifications on the basis of the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present invention, and the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A wave absorbing device, characterized in that: The wave absorbing device comprises a lifting assembly, a side shift assembly and a wave absorbing assembly for absorbing electromagnetic waves; The side shift assembly comprises a support frame and a first power source, the absorbing assembly is slidably arranged on the support frame, and the first power source is used to drive the absorbing assembly to perform horizontal reciprocating motion; The lifting assembly includes a second power source, and the second power source is used to drive the support frame to perform vertical reciprocating motion; The side shift assembly also includes an adjustment frame and a transmission rod; The adjustment frame is arranged at one side end of the support frame, and a horizontal limiting hole is arranged on the adjustment frame. One end of the transmission rod passes through the limiting hole and is fixedly connected to the absorbing assembly, and the transmission rod can only move axially in the limiting hole, and the other end of the transmission rod is transmission-connected to the first power source; The side shift assembly also includes a first end face tooth and a second end face tooth; The first end face gear is arranged on an end of the transmission rod away from the absorbing assembly, the first power source is in transmission connection with the second end face gear, an elastic member is arranged between the first end face gear and the adjustment frame, and the elastic member has a compression preload force to keep the first end face gear in contact with the second end face gear; When the first power source drives the second end face gear to rotate, an axial force is generated between the tooth tip inclined surface of the second end face gear and the tooth tip inclined surface of the first end face gear, driving the first end face gear to alternately be in a meshing position and a non-meshing position with the second end face gear, thereby driving the absorbing assembly to perform horizontal reciprocating motion; The lifting assembly also includes a platform base, a first lifting plate, a second lifting plate, a first connecting plate, a second connecting plate, a connecting rod, a fixing rod and a sliding sleeve; The fixing rod is fixed to the lower end surface of the supporting frame in the horizontal direction, the sliding sleeve is slidably mounted on the fixing rod, and connecting shafts perpendicular to the fixing rod are respectively extended at both ends of the sliding sleeve; the first lifting plate and the first connecting plate are hinged in the middle, the second lifting plate and the second connecting plate are hinged in the middle, the upper end of the first connecting plate and the upper end of the second connecting plate are respectively hinged to the connecting shafts at both ends of the sliding sleeve, the lower end of the first connecting plate and the lower end of the second connecting plate are respectively hinged to the platform base, the upper end of the first lifting plate and the upper end of the second lifting plate are respectively hinged to the supporting frame, and the lower end of the first lifting plate and the lower end of the second lifting plate are respectively hinged to the two ends of the connecting rod; the second power source drives the connecting rod to reciprocate horizontally, thereby driving the supporting frame to reciprocate vertically.

2. The wave absorbing device according to claim 1, characterized in that: The lifting assembly also includes a screw rod and a connecting sleeve; The screw rod is fixed to the upper end surface of the platform base through a bearing and is arranged parallel to the fixed rod; the connecting sleeve is provided with an internal thread that cooperates with the screw rod, the connecting sleeve is sleeved on the screw rod and fixedly connected to the connecting rod; the second power source drives the screw rod to rotate alternately in both directions, thereby driving the connecting rod to perform horizontal reciprocating motion.

3. The wave absorbing device according to claim 2, characterized in that: The lifting assembly also includes a control gear, a control frame and a toothless gear; The control gear is fixedly connected to the screw rod, and the control frame is an annular structure with straight edges on the upper and lower sides. The control frame is slidably connected to the front end of the platform base through a dovetail groove, and can reciprocate horizontally relative to the platform base. The inner side of the upper side of the control frame is provided with a first tooth, and the inner side of the lower side of the control frame is provided with a second tooth. The toothless gear is provided at the power output end of the second power source and is alternately meshed with the first tooth and the second tooth respectively; when the second power source drives the toothless gear to rotate, and when the toothless gear is meshed with the first tooth, the control frame moves along one side of the horizontal direction, and when the toothless gear is meshed with the second tooth, the control frame moves along the other side of the horizontal direction; A third tooth is disposed on the outer side of the upper side of the control frame, and the third tooth is meshed with the control gear for transmission; or a tooth plate is disposed on the outer side of the upper side of the control frame, and the tooth plate is meshed with the control gear for transmission.

4. The wave absorbing device according to claim 1, characterized in that: The wave absorbing assembly comprises a wave absorbing frame; The absorbing frame is fixedly connected to the transmission rod, the lower end of the absorbing frame is a T-shaped structure, the upper end surface of the support frame is provided with a T-shaped slot matching the T-shaped structure, and the T-shaped structure can slide in the T-shaped slot along the length direction of the slot; The upper end surface of the absorbing frame is provided with first absorbing holes arranged in a path array, and at least one side end surface of the absorbing frame is provided with second absorbing holes arranged in a path array.

5. The wave absorbing device according to claim 4, characterized in that: An auxiliary plate is fixed on the front end surface and / or the rear end surface of the absorbing frame; The auxiliary plate is made of wave absorbing material.

6. The wave absorbing device according to claim 5, characterized in that: The absorbing assembly also includes an auxiliary block; The auxiliary block is a conical structure, the bottom end of the conical structure passes through the auxiliary plate and is fixedly connected to the absorbing frame, the tip of the conical structure is fixed with an auxiliary ball, and a through hole is opened on the auxiliary ball.

7. The wave absorbing device according to claim 4, characterized in that: The wave absorbing frame adopts a split structure design, and two adjacent wave absorbing frames are detachably connected through a slide groove structure.

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