Novel light waveguide matching load

Abstract

The utility model relates to the technical field of matched loads, and provides a novel light waveguide matched load, which comprises a hollow fixed block body and a wedge-shaped wave absorbing plate arranged on one side of the hollow fixed block body, and further comprises a plurality of clamping grooves arranged on the outer surface of the hollow fixed block body at equal intervals. According to the utility model, the clamping block of the wedge-shaped wave-absorbing plate is inserted into the clamping groove, so that the inclined surface II of the pushing block is in contact with the inclined surface I of the stress block, the movable block is extruded and driven to slide upwards, and the compression spring is compressed synchronously, and when the clamping block is completely inserted into the clamping groove, the stress block is enabled to move upwards under the reset acting force of the compression spring. The wedge-shaped wave-absorbing plate moves downwards to limit the pushing block, so that the hollow fixed block body and the wedge-shaped wave-absorbing plate cannot be loosened in the long-time use process, and the transmission effect of waveguide matching load signals is further ensured.

Description

Technical Field

[0001] This utility model relates to the field of matching load technology, and in particular to a novel lightweight waveguide matching load. Background Technology

[0002] Waveguide matching loads are a commonly used technique in electromagnetic wave transmission systems, designed to optimize energy transfer efficiency between waveguide transmission lines and loads. Waveguide matching loads are termination devices implemented by designing the load impedance to be equal to the waveguide characteristic impedance to ensure maximum power transfer efficiency. Matching loads can absorb all the power transmitted along the waveguide without generating reflections, thereby avoiding the impact of reflected waves on system performance.

[0003] In existing technologies, such as Chinese Patent No. CN208589517U, there is a novel lightweight waveguide matching load, relating to the field of matching loads. It includes a hollow fixed block and a wedge-shaped absorbing sheet. The front end of the fixed block is wedge-shaped to match the wedge-shaped absorbing sheet, and the shape of the rear end of the fixed block matches the opening shape of the rear end of the waveguide cavity. The length of the rear end face of the fixed block is smaller than the length of the opening at the rear end of the waveguide cavity, and the width of the rear end face of the fixed block is smaller than the length of the opening at the rear end of the waveguide cavity. The wedge-shaped absorbing sheet is connected to the front end of the fixed block by adhesive bonding, and the rear end of the fixed block is connected to the inner wall of the waveguide cavity by adhesive bonding. This novel practical invention solves the problem that existing waveguide matching loads are too heavy and unsuitable for use in aerospace and other projects with high weight requirements.

[0004] While the above-mentioned solution has the advantages mentioned above, its disadvantages are as follows: although the combination of hollow fixed block and wedge-shaped absorbing sheet can reduce the mass of solid block waveguide matching load, the hollow fixed block and wedge-shaped absorbing sheet are fixed by adhesive. This makes the adhesive prone to aging during long-term use, which can lead to loosening of the connection between the hollow fixed block and the wedge-shaped absorbing sheet, thereby affecting the signal transmission performance of the waveguide matching load. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that, although the combination of a hollow fixed block and a wedge-shaped absorbing sheet can reduce the mass of the solid block waveguide matching load, the hollow fixed block and the wedge-shaped absorbing sheet are fixed by adhesive. This makes the adhesive in the waveguide matching load prone to aging during long-term use, resulting in loosening of the connection between the hollow fixed block and the wedge-shaped absorbing sheet, which in turn affects the signal transmission effect of the waveguide matching load.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a novel lightweight waveguide matching load, comprising: a hollow fixed block and a wedge-shaped absorbing sheet, wherein the wedge-shaped absorbing sheet is disposed on one side of the hollow fixed block, and further comprising:

[0007] Multiple slots are equidistantly formed on the outer surface of the hollow fixed block. Two connecting blocks are symmetrically and movably embedded inside the slots. A force-bearing block is fixedly connected to the bottom of the connecting block. Multiple locking blocks are equidistantly fixedly connected to the inner wall of the wedge-shaped absorbing sheet. Two pushing blocks are symmetrically fixedly connected to the top of the locking blocks. The outer surface of the locking blocks is slidably connected to the inside of the slots.

[0008] Preferably, the inner wall of the slot has two symmetrical sliding grooves, the inner wall of the sliding groove is fixedly connected to a guide rod, the inner wall of the sliding groove is slidably connected to a movable block, the movable block is fixedly connected to a connecting block, and the movable block is slidably connected to the guide rod.

[0009] Preferably, the outer surface of the guide rod is provided with a compression spring, and the two ends of the compression spring are respectively fixedly connected to the top of the slide groove and the movable block.

[0010] Preferably, one side of the force-bearing block is provided with an inclined surface, and one side of the pushing block is provided with an inclined surface, wherein the inclined surface one and the inclined surface two are parallel to each other.

[0011] Preferably, the front end of the hollow fixed block is provided with a wedge shape that matches the wedge-shaped absorbing sheet, and both the slot and the block are set in a V shape, with the slot matching the block.

[0012] Preferably, the plurality of movable blocks are divided into two groups on average, and a connecting rod is fixedly connected to the top of each group of movable blocks, and a connecting strip is fixedly connected to one end of each of the two connecting rods.

[0013] Preferably, the hollow fixing block has a support plate inside.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] This invention involves inserting the wedge-shaped absorbing sheet into the slot, causing the inclined surface of the pushing block to contact and press against the inclined surface of the force-bearing block, pushing the force-bearing block and connecting block upwards. Simultaneously, this causes the movable block to slide upwards, compressing the compression spring. When the locking block is fully inserted into the slot, the pressure exerted by the pushing block on the force-bearing block disappears, allowing the force-bearing block to move downwards under the restoring force of the compression spring. This limits the pushing block and simultaneously causes the movable block and connecting block to move downwards. At this point, the wedge-shaped absorbing sheet is completely fitted against the front end of the hollow fixed block. This ensures that the hollow fixed block and the wedge-shaped absorbing sheet will not loosen during prolonged use, thus guaranteeing the transmission effect of the waveguide-matched load signal.

[0016] This invention allows for the upward movement of the connecting strip by hand, which simultaneously moves the connecting rod upward and causes the movable block to slide upward along the inside of the groove. This, in turn, moves the connecting block and the force-bearing block upward, releasing the limit on the pushing block. At this point, the locking block can be pulled out from the inside of the groove, separating the hollow fixed block from the wedge-shaped absorbing sheet. This method of separating the hollow fixed block from the wedge-shaped absorbing sheet is quick, convenient, and leaves no residue compared to the adhesive connection method. Attached Figure Description

[0017] Figure 1 A side view schematic diagram of a novel lightweight waveguide matching load provided by this utility model;

[0018] Figure 2 This invention provides a novel lightweight waveguide matching load. Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 A schematic diagram of the split structure of a novel lightweight waveguide matching load provided by this utility model;

[0020] Figure 4 This invention provides a novel lightweight waveguide matching load. Figure 3 Enlarged structural diagram at point B;

[0021] Figure 5 A schematic diagram of a novel hollow fixed block structure for a lightweight waveguide matching load provided by this utility model;

[0022] Figure 6 This invention provides a novel lightweight waveguide matching load. Figure 5 Enlarged structural diagram at point C;

[0023] Figure 7 This is a partial cross-sectional structural diagram of a novel lightweight waveguide matching load provided by this utility model.

[0024] Legend:

[0025] 1. Hollow fixed block; 101. Slide groove; 102. Guide rod; 103. Movable block; 104. Compression spring; 105. Connecting rod; 106. Connecting strip; 107. Slot; 108. Connecting block; 109. Force-bearing block; 2. Wedge-shaped wave-absorbing sheet; 201. Locking block; 202. Pushing block; 3. Support plate. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1, such as Figure 1-7 As shown, this utility model provides a novel lightweight waveguide matching load, comprising: a hollow fixed block 1 and a wedge-shaped absorbing sheet 2, the wedge-shaped absorbing sheet 2 being disposed on one side of the hollow fixed block 1, and further comprising:

[0029] Multiple slots 107 are equidistantly opened on the outer surface of the hollow fixed block 1. Two connecting blocks 108 are symmetrically and movably embedded inside the slots 107. A force-bearing block 109 is fixedly connected to the bottom of the connecting block 108. Multiple locking blocks 201 are equidistantly fixedly connected to the inner wall of the wedge-shaped absorbing sheet 2. Two pushing blocks 202 are symmetrically fixedly connected to the top of the locking blocks 201. The outer surface of the locking blocks 201 is slidably connected to the inside of the slots 107.

[0030] Furthermore, such as Figure 1-7 As shown, two symmetrical sliding grooves 101 are formed on the inner wall of the slot 107. A guide rod 102 is fixedly connected to the inner wall of the sliding groove 101. A movable block 103 is slidably connected to the inner wall of the sliding groove 101. The movable block 103 is fixedly connected to the connecting block 108 and slidably connected to the guide rod 102. The guide rod 102 serves to limit and guide the movable block 103. The guide rod 102 can slide up and down inside the sliding groove 101 and along the outer surface of the guide rod 102.

[0031] Furthermore, such as Figure 1-7As shown, a compression spring 104 is provided on the outer surface of the guide rod 102. The two ends of the compression spring 104 are fixedly connected to the slide groove 101 and the upper part of the movable block 103, respectively. Under the reset force of the compression spring 104, the movable block 103 can slide downward along the inside of the slide groove 101.

[0032] Furthermore, such as Figure 1-7 As shown, one side of the force-bearing block 109 is provided with an inclined surface, and one side of the pushing block 202 is provided with an inclined surface. The inclined surface and the inclined surface are parallel to each other. Through the above arrangement, it is convenient for the pushing block 202 to squeeze the force-bearing block 109.

[0033] Furthermore, such as Figure 1-7 As shown, the front end of the hollow fixed block 1 is provided with a wedge shape that matches the wedge-shaped absorbing sheet 2. Both the slot 107 and the block 201 are set in a V shape. The slot 107 matches the block 201. With the above settings, when the block 201 is fully inserted into the compression spring 104, the wedge-shaped absorbing sheet 2 can be tightly fitted with the hollow fixed block 1.

[0034] Furthermore, such as Figure 1-7 As shown, multiple movable blocks 103 are divided into two groups. The top of each group of movable blocks 103 is fixedly connected to a connecting rod 105. One end of each connecting rod 105 is fixedly connected to a connecting strip 106. By pulling the connecting strip 106 upward by hand, the connecting rod 105 is moved upward in sync, causing the movable block 103 to slide upward along the inside of the slide groove 101.

[0035] Furthermore, such as Figure 1-7 As shown, a support plate 3 is provided inside the hollow fixed block 1. The support plate 3 serves to increase the strength of the hollow fixed block 1.

[0036] Working principle: In use, when the wedge-shaped absorbing sheet 2 needs to be installed on the hollow fixed block 1, the locking block 201 of the wedge-shaped absorbing sheet 2 is inserted into the slot 107, so that the inclined surface 2 of the pushing block 202 contacts the inclined surface 1 of the force-bearing block 109 and squeezes it, pushing the force-bearing block 109 and the connecting block 108 to move upward. At the same time, the movable block 103 slides upward along the inside of the slide groove 101 and the outer surface of the guide rod 102, and the compression spring 104 is compressed simultaneously. When the locking block 201 is fully inserted into the slot 107, the squeezing force of the pushing block 202 on the force-bearing block 109 disappears, so the force-bearing block 109 moves downward under the restoring force of the compression spring 104, limiting the pushing block 202. At the same time, the movable block 103 and the connecting block 108 move downward. At this time, the wedge-shaped absorbing sheet 2... The hollow fixed block 1 and the wedge-shaped absorbing sheet 2 are completely attached to the front end, which ensures that the hollow fixed block 1 and the wedge-shaped absorbing sheet 2 will not loosen during long-term use, thus ensuring the transmission effect of the waveguide matching load signal. When it is necessary to remove the wedge-shaped absorbing sheet 2 from the top of the hollow fixed block 1, the connecting strip 106 is pulled upward by hand, which simultaneously drives the connecting rod 105 to move upward, causing the movable block 103 to slide upward along the inside of the slide groove 101, and simultaneously driving the connecting block 108 and the force block 109 to move upward, releasing the limit on the pushing block 202. At this time, the locking block 201 can be pulled out from the inside of the locking groove 107, so that the hollow fixed block 1 and the wedge-shaped absorbing sheet 2 are separated. This separation is quick and convenient compared to the glue connection method, and leaves no residue.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel lightweight waveguide matching load, comprising: A hollow fixed block (1) and a wedge-shaped absorbing sheet (2), wherein the wedge-shaped absorbing sheet (2) is disposed on one side of the hollow fixed block (1), characterized in that it further comprises: Multiple slots (107) are equidistantly provided on the outer surface of the hollow fixed block (1). Two connecting blocks (108) are symmetrically and movably embedded inside the slots (107). A force-bearing block (109) is fixedly connected to the bottom of the connecting block (108). Multiple card blocks (201) are equidistantly fixedly connected to the inner wall of the wedge-shaped absorbing sheet (2). Two pushing blocks (202) are symmetrically fixedly connected to the top of the card blocks (201). The outer surface of the card blocks (201) is slidably connected to the inside of the slots (107).

2. The novel lightweight waveguide matching load according to claim 1, characterized in that: The inner wall of the slot (107) has two symmetrical sliding grooves (101). The inner wall of the sliding groove (101) is fixedly connected to a guide rod (102). The inner wall of the sliding groove (101) is slidably connected to a movable block (103). The movable block (103) is fixedly connected to a connecting block (108). The movable block (103) is slidably connected to the guide rod (102).

3. A novel lightweight waveguide matching load according to claim 2, characterized in that: A compression spring (104) is provided on the outer surface of the guide rod (102), and the two ends of the compression spring (104) are fixedly connected to the slide groove (101) and the movable block (103) respectively.

4. The novel lightweight waveguide matching load according to claim 1, characterized in that: One side of the force-bearing block (109) is provided with an inclined surface, and one side of the pushing block (202) is provided with an inclined surface, and the inclined surface one and the inclined surface two are parallel to each other.

5. A novel lightweight waveguide matching load according to claim 2, characterized in that: The front end of the hollow fixed block (1) is provided with a wedge shape that matches the wedge-shaped absorbing sheet (2). The slot (107) and the block (201) are both set in a V shape, and the slot (107) matches the block (201).

6. A novel lightweight waveguide matching load according to claim 3, characterized in that: The multiple movable blocks (103) are divided into two groups on average. The top of each group of movable blocks (103) is fixedly connected to a connecting rod (105), and one end of each connecting rod (105) is fixedly connected to a connecting strip (106).

7. A novel lightweight waveguide matching load according to claim 5, characterized in that: The hollow fixed block (1) is provided with a support plate (3) inside.

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