A photonic radio frequency receiver

Abstract

The present invention belongs to the technical field of radio frequency receivers, and in particular, is a photon radio frequency receiver, comprising a receiver body, a heat sink is provided at the bottom of the receiver body, a box is provided below the heat sink, two reels are rotatably connected between the inner walls at both ends of the box, cotton cloth is fixedly connected to the reels, a side strip is fixedly connected to the free end of the cotton cloth, a rope is fixedly connected to the outer side of the side strip, two pads are fixedly connected to both sides of the bottom of the receiver body, a hanger is fixedly connected between the two ends of the inner shaft, a plurality of gear teeth are provided on the outer circumferential wall of the sleeve, guide plates are fixedly connected to both sides of the bottom of the receiver body, a guide groove is provided at the bottom of the guide plate, a guide block is slidably connected in the guide groove, a baffle is fixedly connected to the bottom of the guide block, a first spring is fixedly connected to the outer side of the guide block, and the other end of the first spring is fixed to the side wall of the guide groove. In the present invention, by unfolding the cotton cloth below the heat sink, the entry of dust can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of radio frequency receivers, and in particular to a photonic radio frequency receiver. Background Art

[0002] The current wireless communication electronic technology field is developing rapidly, and wireless communication has put forward higher and higher requirements on the integration, flexibility, compatibility of communication formats, engineering applicability, etc. of the receiver. The RF receiver is the core structure in microwave RF systems such as wireless communication, electronic warfare, radar systems and satellite loads. Among various receivers, the heterodyne structure is the most important type of receiver, which is due to the advantages of low spurious, large dynamic range and high sensitivity of heterodyne receivers.

[0003] Considering the heat dissipation of the RF receiver when it is working, the existing RF receiver is generally provided with a ventilation window. Due to the existence of the ventilation window, a large amount of dust will enter the RF receiver along with the air, affecting the precision electronic components inside the RF receiver. Therefore, corresponding improvements are made to address this problem. Summary of the invention

[0004] Based on the technical problem that a large amount of dust may enter the radio frequency receiver through the ventilation window along with the air, the present invention proposes a photonic radio frequency receiver.

[0005] A photon radio frequency receiver proposed in the present invention comprises a receiver body, a heat sink is provided at the bottom of the receiver body, a box is provided below the heat sink, two reels symmetrically distributed on both sides are rotatably connected between the inner walls at both ends of the box, an opening is provided at the top of the box, a cotton cloth is fixedly connected to the reel, the cotton cloth is wound on the reel, the free end of the cotton cloth extends from the opening and is fixedly connected to a side strip, a rope is fixedly connected to the outside of the side strip, two pads symmetrically distributed at both ends are fixedly connected to both sides of the bottom of the receiver body, and the same pad is rotatably connected between the two pads on the same side. An inner shaft, wherein the same U-shaped hanger is fixedly connected between the two ends of the inner shaft, a sleeve is fixedly mounted on the inner shaft, and the circumferential outer wall of the sleeve is provided with a plurality of gear teeth distributed in a circular array, guide plates are fixedly connected to both sides of the bottom of the receiver body, a guide groove is provided at the bottom of the guide plate, and the guide groove is inclined downward from the middle to the outside, a guide block is slidably connected in the guide groove, a baffle is fixedly connected to the bottom of the guide block, a first spring is fixedly connected to the outer side surface of the guide block, and the other end of the first spring is fixed to the side wall of the guide groove, and the free end of the rope extends into the guide groove and is fixed to the guide block.

[0006] Preferably, the cross section of the gear teeth is arc-shaped, and the inner side surface of the baffle is provided with an arc-shaped protrusion matching the gear teeth.

[0007] Preferably, both ends of the reel are sleeved with a cylinder, the cylinder is fixedly connected to the inner wall of the box, and both ends of the reel are sleeved with a coil spring, the free end of the coil spring is fixedly connected to the inner wall of the cylinder.

[0008] Preferably, ear blocks are fixedly connected to both sides of the top of the receiver body, and a same carrying strap is fixedly connected between the two ear blocks.

[0009] Preferably, a fixing rod is fixedly connected to the outer side surface of the ear block, a mounting opening is provided at the top of the fixing rod, a sliding groove is provided on the inner wall at the rear end of the mounting opening, a slider is slidably connected in the sliding groove, a second spring is fixedly connected to the bottom of the slider, the bottom end of the second spring is fixed to the bottom inner wall of the sliding groove, and a clamping block is fixedly connected to the front end of the slider.

[0010] Preferably, the top of the block is a curved surface.

[0011] Preferably, both ends of the top of the box are fixedly connected with sleeve plates, and both ends of the heat dissipation plate are fixedly connected with L-shaped plug plates, and the plug plates and the sleeve plates are plugged into each other.

[0012] Preferably, a positioning column is fixedly connected to the front end of the plug board, a third spring is fixedly mounted on the positioning column, an insertion rod is fixedly connected to the front end of the third spring, a first plug hole is provided on the plug board, and a plurality of second plug holes evenly distributed up and down are provided on the sleeve plate.

[0013] Preferably, a sliding rod is fixedly connected to the top inner wall of the plug plate, and a same cover plate is sleeved between two of the sliding rods.

[0014] Preferably, a plurality of evenly distributed notches are formed on both sides of the cover plate.

[0015] Compared with the prior art, the present invention provides a photon radio frequency receiver, which has the following beneficial effects:

[0016] 1. A photon radio frequency receiver, water is added into the box through the opening in advance, the receiver body is placed on the table, and the pad and the table are contacted to form a support, and then the two brackets are rotated to both sides respectively, the brackets drive the corresponding inner shaft, sleeve and gear to rotate, and multiple gear teeth will contact the baffle in turn, so that the baffle follows the guide block and slides outward along the guide groove. In this process, the contact part between the gear teeth and the baffle is gradually reduced until the baffle and the gear teeth are out of contact, and then reset and move under the action of the first spring, and then contact with another gear tooth, the guide block pulls the rope when moving outward, the rope pulls the cotton cloth, the cotton cloth drives the reel to rotate, and the cotton cloth is loosened, and the reel rotates to tighten the coil spring, when the guide block resets and moves inward, under the action of the coil spring, the reel is driven to reel in the cotton cloth, so that during the period when the bracket rotates downward, the cotton cloth is repeatedly pulled, so that it is convenient to shake off the dust on the cotton cloth, and the cotton cloth is also rinsed in the box to achieve self-cleaning. , and the cotton cloth is fully soaked with water. Finally, the end of the hanger will be stably placed on the table due to gravity. At this time, the baffle is restricted by a corresponding gear tooth to the outer position of the guide groove, and the two cotton cloths are in a pulled apart state, forming a shield for the bottom of the heat sink, thereby effectively adsorbing dust in the air entering and leaving the heat sink, and absorbing heat through the evaporation of water on the cotton cloth, thereby improving the heat dissipation effect. Further, since the baffle will limit the rotation of the gear when the hanger is rotated upward, the baffle can be pulled outward to the extreme side, and then the hanger can be rotated upward, so that the two hangers form an eight-shaped opening at different angles. After adjusting to a suitable angle, the two hangers can be used to contact the table to form stable supports at different heights. When carrying, the baffle is pulled outward to the extreme side, and then the hanger is rotated to the top of the receiver body, so that it can be stably folded. After folding, it forms a package on multiple surfaces of the receiver body, which can withstand certain accidental collisions and form a certain protection for the receiver body.

[0017] 2. This photon radio frequency receiver is provided with a card block. When the bracket is rotated upward and folded, the bracket will contact the card block and press the card block downward. The card block moves downward along the slide groove along with the slider to squeeze the second spring. When the bracket is rotated to the inner side of the card block, the second spring pushes the card block to move upward, thereby effectively limiting and fixing the bracket.

[0018] 3. The photon radio frequency receiver can be provided with a sleeve plate, so that the plug rod can be pulled out from the first socket, and then the box is pulled downward to a suitable position, and then the plug rod is inserted into the corresponding second socket and the first socket to be fixed. At this time, water can be easily added to the box from the opening. After the water is added, the box is moved upward and the cover plate is pressed into the opening. The cover plate and the cotton cloth are pressed tightly. At the same time, since the cotton cloth fills the gap between the cover plate and the opening, the cover plate can be firmly fastened in the opening to prevent water from overflowing. In addition, multiple notches are provided, so that the cotton cloth located at the notch can be in an unpressed state, thereby ensuring that the external cotton cloth can continuously absorb the water in the box, thereby keeping the cotton cloth in a moist state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the first angle structure of a photonic radio frequency receiver proposed by the present invention;

[0020] Figure 2 A schematic diagram of the structure of a photon radio frequency receiver from a second angle proposed by the present invention;

[0021] Figure 3 A schematic diagram of the structure of a second use state of a bracket of a photon radio frequency receiver proposed by the present invention;

[0022] Figure 4 A schematic diagram of the box installation structure of a photon radio frequency receiver proposed by the present invention;

[0023] Figure 5 A schematic diagram of the internal structure of a box of a photon radio frequency receiver proposed by the present invention;

[0024] Figure 6 A schematic diagram of the amplified structure at point A of a photonic radio frequency receiver proposed by the present invention;

[0025] Figure 7 A schematic diagram of the amplified structure at point B of a photon radio frequency receiver proposed by the present invention;

[0026] Figure 8 A schematic cross-sectional structure diagram of a guide plate of a photon radio frequency receiver proposed by the present invention;

[0027] Fig. 9 This is a schematic cross-sectional structure diagram of a fixing rod of a photon radio frequency receiver proposed by the present invention;

[0028] Fig.10 A schematic diagram of a cover plate installation structure of a photonic radio frequency receiver proposed by the present invention;

[0029] Fig.11 A schematic diagram of the rear view structure of a plug-in board of a photon radio frequency receiver proposed by the present invention;

[0030] Fig.12 This is a schematic diagram of the amplified structure at point C of a photonic radio frequency receiver proposed by the present invention.

[0031] In the figure: 1. receiver body; 2. heat sink; 3. box; 4. reel; 5. cotton cloth; 6. edge strip; 7. rope; 8. pad; 9. inner shaft; 10. hanger; 11. sleeve; 12. gear; 13. guide plate; 14. guide groove; 15. guide block; 16. first spring; 17. baffle; 18. cylinder; 19. coil spring; 20. opening; 21. ear block; 22. carrying strap; 23. fixing rod; 24. installation opening; 25. slide groove; 26. slider; 27. second spring; 28. block; 29. ​​sleeve; 30. plug plate; 31. positioning column; 32. third spring; 33. plug rod; 34. second plug hole; 35. cover plate; 36. notch; 37. slide rod. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Example 1

[0035] Reference Figure 1-8A photon radio frequency receiver comprises a receiver body 1, a heat sink 2 is provided at the bottom of the receiver body 1, a box 3 is provided below the heat sink 2, two reels 4 symmetrically distributed on both sides are rotatably connected between the inner walls at both ends of the box 3, an opening 20 is provided at the top of the box 3, a cotton cloth 5 is fixedly connected to the reel 4, the cotton cloth 5 is wound on the reel 4, the free end of the cotton cloth 5 extends from the opening 20 and is fixedly connected to a side strip 6, a rope 7 is fixedly connected to the outer side of the side strip 6, two pads 8 symmetrically distributed at both ends are fixedly connected to both sides of the bottom of the receiver body 1, the same inner shaft 9 is rotatably connected between the two pads 8 on the same side, and the two ends of the inner shaft 9 A U-shaped hanger 10 is fixedly connected therebetween, a sleeve 11 is fixedly mounted on the inner shaft 9, a plurality of gear teeth 12 distributed in a circular array are arranged on the circumferential outer wall of the sleeve 11, guide plates 13 are fixedly connected to both sides of the bottom of the receiver body 1, a guide groove 14 is provided at the bottom of the guide plate 13, the guide groove 14 is inclined downward from the middle to the outside, a guide block 15 is slidably connected in the guide groove 14, a baffle 17 is fixedly connected to the bottom of the guide block 15, a first spring 16 is fixedly connected to the outer side of the guide block 15, the other end of the first spring 16 is fixed to the side wall of the guide groove 14, and the free end of the rope 7 extends into the guide groove 14 and is fixed to the guide block 15.

[0036] Furthermore, the cross section of the gear teeth 12 is arc-shaped, and the inner side surface of the baffle 17 is provided with an arc-shaped protrusion matching the gear teeth 12 .

[0037] Furthermore, both ends of the reel 4 are sleeved with a cylinder 18 , and the cylinder 18 is fixedly connected to the inner wall of the box 3 . Both ends of the reel 4 are sleeved with a coil spring 19 , and the free end of the coil spring 19 is fixedly connected to the inner wall of the cylinder 18 .

[0038] Furthermore, ear blocks 21 are fixedly connected to both sides of the top of the receiver body 1 , and a carrying strap 22 is fixedly connected between the two ear blocks 21 .

[0039] When in use, water is added into the box 3 through the opening 20 in advance, the receiver body 1 is placed on the table, and the pad 8 is in contact with the table to form a support, and then the two hangers 10 are rotated to both sides respectively, and the hangers 10 drive the corresponding inner shaft 9, sleeve 11 and gear 12 to rotate, and multiple gear teeth 12 will contact the baffle 17 in turn, so that the baffle 17 follows the guide block 15 and slides outward along the guide groove 14. In this process, the contact area between the gear teeth 12 and the baffle 17 is gradually reduced until the baffle 17 and the gear teeth 12 are out of contact, and then The first spring 16 resets and moves, and then contacts another gear 12. When the guide block 15 moves outward, it pulls the rope 7, and the rope 7 pulls the cotton cloth 5. The cotton cloth 5 drives the reel 4 to rotate, and the cotton cloth 5 is unwound. The reel 4 rotates to tighten the coil spring 19. When the guide block 15 resets and moves inward, the reel 4 is driven to reel the cotton cloth 5 under the action of the coil spring 19, so that during the downward rotation of the hanger 10, the cotton cloth 5 is repeatedly pulled, so that the dust on the cotton cloth 5 is shaken off, and the cotton cloth 5 is also moved in the box 3. Rinse and wash to achieve self-cleaning, and also make the cotton cloth 5 fully soaked with water. Finally, the end of the rack 10 will be stably placed on the table due to gravity. At this time, the baffle 17 is limited to the outer position of the guide groove 14 by a corresponding gear tooth 12. The two cotton cloths 5 are in a pulled-apart state, forming a shield for the bottom of the heat sink 2, thereby effectively adsorbing dust in the air entering and leaving the heat sink 2, and absorbing heat through the evaporation of water on the cotton cloth 5, thereby improving the heat dissipation effect. Further, when the rack 10 is rotated upward, the baffle 17 will limit the rotation of the gear tooth 12 The baffle 17 can be pulled outward to the extreme side first, and then the hanger 10 can be rotated upward so that the two hangers 10 form an eight-shaped opening at different angles. After adjusting to a suitable angle, the two hangers 10 can be used to contact the table surface to form stable supports at different heights. When carrying, the baffle 17 can be pulled outward to the extreme side, and then the hanger 10 can be rotated to the top of the receiver body 1, so that it can be stably folded. After folding, it forms a package on multiple surfaces of the receiver body 1, which can withstand certain accidental collisions and provide certain protection for the receiver body 1.

[0040] Example 2

[0041] Reference Figure 1-12A photon radio frequency receiver, a receiver body 1, a heat sink 2 is provided at the bottom of the receiver body 1, a box 3 is provided below the heat sink 2, two reels 4 symmetrically distributed on both sides are rotatably connected between the inner walls at both ends of the box 3, an opening 20 is opened at the top of the box 3, a cotton cloth 5 is fixedly connected to the reel 4, the cotton cloth 5 is wound on the reel 4, the free end of the cotton cloth 5 extends from the opening 20 and is fixedly connected to a side strip 6, a rope 7 is fixedly connected to the outside of the side strip 6, two pads 8 symmetrically distributed at both ends are fixedly connected to both sides of the bottom of the receiver body 1, the same inner shaft 9 is rotatably connected between the two pads 8 on the same side, and the two ends of the inner shaft 9 are connected to each other. A U-shaped hanger 10 is fixedly connected between the inner shaft 9, a sleeve 11 is fixedly mounted on the inner shaft 9, and a plurality of gear teeth 12 distributed in a circular array are arranged on the circumferential outer wall of the sleeve 11. Guide plates 13 are fixedly connected to both sides of the bottom of the receiver body 1, and a guide groove 14 is provided at the bottom of the guide plate 13. The guide groove 14 is inclined downward from the middle to the outside, and a guide block 15 is slidably connected in the guide groove 14. A baffle 17 is fixedly connected to the bottom of the guide block 15, and a first spring 16 is fixedly connected to the outer side of the guide block 15. The other end of the first spring 16 is fixed to the side wall of the guide groove 14, and the free end of the rope 7 extends into the guide groove 14 and is fixed to the guide block 15.

[0042] Furthermore, the cross section of the gear teeth 12 is arc-shaped, and the inner side surface of the baffle 17 is provided with an arc-shaped protrusion matching the gear teeth 12 .

[0043] Furthermore, both ends of the reel 4 are sleeved with a cylinder 18 , and the cylinder 18 is fixedly connected to the inner wall of the box 3 . Both ends of the reel 4 are sleeved with a coil spring 19 , and the free end of the coil spring 19 is fixedly connected to the inner wall of the cylinder 18 .

[0044] Furthermore, ear blocks 21 are fixedly connected to both sides of the top of the receiver body 1 , and a carrying strap 22 is fixedly connected between the two ear blocks 21 .

[0045] Furthermore, a fixing rod 23 is fixedly connected to the outer side surface of the ear block 21, a mounting opening 24 is provided at the top of the fixing rod 23, a sliding groove 25 is provided on the inner wall at the rear end of the mounting opening 24, a slider 26 is slidably connected in the sliding groove 25, a second spring 27 is fixedly connected to the bottom of the slider 26, the bottom end of the second spring 27 is fixed to the bottom inner wall of the sliding groove 25, and a clamping block 28 is fixedly connected to the front end of the slider 26.

[0046] Furthermore, the top of the block 28 is a curved surface.

[0047] Furthermore, both ends of the top of the box 3 are fixedly connected with a sleeve plate 29 , and both ends of the heat sink 2 are fixedly connected with an L-shaped plug plate 30 , and the plug plate 30 and the sleeve plate 29 are plugged into each other.

[0048] Furthermore, a positioning column 31 is fixedly connected to the front end of the plug plate 30, a third spring 32 is fixedly mounted on the positioning column 31, an insertion rod 33 is fixedly connected to the front end of the third spring 32, a first plug hole is opened on the plug plate 30, and a plurality of second plug holes 34 evenly distributed up and down are opened on the sleeve plate 29.

[0049] Furthermore, a slide bar 37 is fixedly connected to the top inner wall of the plug board 30 , and a cover plate 35 is sleeved between the two slide bars 37 .

[0050] Furthermore, a plurality of evenly distributed notches 36 are formed on both sides of the cover plate 35 .

[0051] When in use, water is added into the box 3 through the opening 20 in advance, the receiver body 1 is placed on the table, and the pad 8 is in contact with the table to form a support, and then the two hangers 10 are rotated to both sides respectively, and the hangers 10 drive the corresponding inner shaft 9, sleeve 11 and gear 12 to rotate, and multiple gear teeth 12 will contact with the baffle 17 in turn, so that the baffle 17 follows the guide block 15 and slides outward along the guide groove 14. During this process, the contact area between the gear teeth 12 and the baffle 17 is gradually reduced until the baffle 17 and the gear teeth 12 are disengaged, and then reset and move under the action of the first spring 16, and then contact with another gear tooth 12. When the guide block 15 moves outward, it pulls the rope 7, and the rope 7 pulls the cotton cloth 5, and the cotton cloth 5 drives the reel 4 to rotate, which The cloth 5 is unwound, and the reel 4 rotates to tighten the coil spring 19. When the guide block 15 is reset and moved inward, the reel 4 is driven to reel in the cotton cloth 5 under the action of the coil spring 19, so that the cotton cloth 5 is repeatedly pulled during the downward rotation of the hanger 10, so that the dust on the cotton cloth 5 can be shaken off, and the cotton cloth 5 can be rinsed in the box 3 to achieve self-cleaning, and the cotton cloth 5 can be fully soaked with water. Finally, the end of the hanger 10 will be stably placed on the table due to gravity. At this time, the baffle 17 is restricted to the outer position of the guide groove 14 by a corresponding gear tooth 12, and the two cotton cloths 5 are in a pulled apart state, forming a shield on the bottom of the heat sink 2, thereby effectively adsorbing the dust in the air entering and leaving the heat sink 2, and absorbing heat through the evaporation of water on the cotton cloth 5. , improve the heat dissipation effect. Further, since the baffle 17 will limit the rotation of the gear 12 when the hanger 10 is rotated upward, the baffle 17 can be pulled outward to the extreme side, and then the hanger 10 is rotated upward, so that the two hangers 10 form an eight-shaped opening at different angles. After adjusting to a suitable angle, the two hangers 10 can be used to contact the table to form stable supports at different heights. When carrying, the baffle 17 is pulled outward to the extreme side, and then the hanger 10 is rotated to the top of the receiver body 1, so that it can be stably folded. After folding, it forms a package on multiple surfaces of the receiver body 1, which can withstand certain accidental collisions and form a certain protection for the receiver body 1. Further, a block 28 is provided. When the hanger 10 is rotated upward to be folded When folding, the hanger 10 will contact the block 28 and press the block 28 down. The block 28 moves downward along the slide groove 25 with the slider 26 to squeeze the second spring 27. When the hanger 10 rotates to the inner side of the block 28, the second spring 27 pushes the block 28 to move upward, so that the hanger 10 can be effectively limited and fixed. Furthermore, a sleeve plate 29 is provided, so that the plug rod 33 can be pulled out from the first plug hole, and then the box 3 is pulled downward to a suitable position, and then the plug rod 33 is inserted into the corresponding second plug hole 34 and the first plug hole for fixing. At this time, water can be easily added to the box 3 from the opening 20. After the water is added, the box 3 is moved upward again, and the cover plate 35 is pressed into the opening 20. The cover plate 35 and the cotton cloth 5 are pressed tightly.At the same time, since the cotton cloth 5 fills the gap between the cover plate 35 and the opening 20, the cover plate 35 can be firmly fastened in the opening 20 to prevent water from overflowing, and a plurality of notches 36 are provided, so that the cotton cloth 5 located at the notches 36 is in an unpressed state, thereby ensuring that the outer cotton cloth 5 can continuously absorb the water in the box 3, thereby keeping the cotton cloth 5 in a moist state.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photonic radio frequency receiver, comprising a receiver body (1), characterized in that: A heat sink (2) is provided at the bottom of the receiver body (1), a box (3) is provided below the heat sink (2), two reels (4) symmetrically distributed on both sides are rotatably connected between the inner walls at both ends of the box (3), an opening (20) is provided at the top of the box (3), a cotton cloth (5) is fixedly connected to the reel (4), the cotton cloth (5) is wound on the reel (4), the free end of the cotton cloth (5) extends out of the opening (20) and is fixedly connected to a side strip (6), the outer side of the side strip (6) is fixedly connected to a rope (7), two pads (8) symmetrically distributed at both ends are fixedly connected to both sides of the bottom of the receiver body (1), the two pads (8) on the same side are rotatably connected to the same inner shaft (9), the two ends of the inner shaft (9) are fixedly connected to the same U-shaped hanger (10), and the inner shaft (9) is sleeved with a A sleeve (11) is fixedly provided, and a plurality of gear teeth (12) distributed in an annular array are provided on the circumferential outer wall of the sleeve (11); guide plates (13) are fixedly connected to both sides of the bottom of the receiver body (1); a guide groove (14) is provided at the bottom of the guide plate (13); the guide groove (14) is inclined downward from the middle to the outside; a guide block (15) is slidably connected in the guide groove (14); a baffle (17) is fixedly connected to the bottom of the guide block (15); a first spring (16) is fixedly connected to the outer side surface of the guide block (15); the other end of the first spring (16) is fixed to the side wall of the guide groove (14); the free end of the rope (7) extends into the guide groove (14) and is fixed to the guide block (15); the cross section of the gear teeth (12) is arc-shaped; the inner side surface of the baffle (17) is provided with an arc-shaped protrusion matching the gear teeth (12).

2. A photonic radio frequency receiver according to claim 1, characterized in that: Both ends of the reel (4) are sleeved with a cylinder (18), and the cylinder (18) is fixedly connected to the inner wall of the box (3). Both ends of the reel (4) are sleeved with a coil spring (19), and the free end of the coil spring (19) is fixedly connected to the inner wall of the cylinder (18).

3. A photonic radio frequency receiver according to claim 1, characterized in that: Ear blocks (21) are fixedly connected to both sides of the top of the receiver body (1), and a carrying strap (22) is fixedly connected between the two ear blocks (21).

4. A photonic radio frequency receiver according to claim 3, characterized in that: The outer side surface of the ear block (21) is fixedly connected to a fixing rod (23); a mounting opening (24) is provided at the top of the fixing rod (23); a sliding groove (25) is provided at the inner wall at the rear end of the mounting opening (24); a sliding block (26) is slidably connected in the sliding groove (25); a second spring (27) is fixedly connected to the bottom of the sliding block (26); the bottom end of the second spring (27) is fixed to the bottom inner wall of the sliding groove (25); and a clamping block (28) is fixedly connected to the front end of the sliding block (26).

5. A photonic radio frequency receiver according to claim 4, characterized in that: The top of the clamping block (28) is a curved surface.

6. A photonic radio frequency receiver according to claim 1, characterized in that: Both ends of the top of the box (3) are fixedly connected with sleeve plates (29), and both ends of the heat dissipation plate (2) are fixedly connected with L-shaped plug plates (30), and the plug plates (30) and the sleeve plates (29) are plugged into each other.

7. A photonic radio frequency receiver according to claim 6, characterized in that: The front end of the plug plate (30) is fixedly connected to a positioning column (31), a third spring (32) is sleeved and fixed on the positioning column (31), and the front end of the third spring (32) is fixedly connected to an insertion rod (33), the plug plate (30) is provided with a first insertion hole, and the sleeve plate (29) is provided with a plurality of second insertion holes (34) evenly distributed up and down.

8. A photonic radio frequency receiver according to claim 6, characterized in that: A sliding rod (37) is fixedly connected to the top inner wall of the plug plate (30), and a cover plate (35) is sleeved between the two sliding rods (37).

9. A photonic radio frequency receiver according to claim 8, characterized in that: A plurality of evenly distributed notches (36) are provided on both sides of the cover plate (35).

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