Fire-fighting communication guarantee tray type tripod

Abstract

The invention discloses a fire-fighting communication guarantee tray type tripod, and relates to the field of fire-fighting communication guarantee, the fire-fighting communication guarantee tray type tripod comprises a tripod, the top of the tripod is fixedly connected with a mounting seat, a tray is arranged above the mounting seat, and the bottom of the tray is provided with a connecting seat; a driving assembly used for driving the tray to rotate horizontally is arranged at the joint of the tray and the connecting base, mounting blocks are fixedly connected to the two sides of the top of the mounting base, and a rotating assembly used for adjusting the pitching angle of the tray and a sealing assembly used for sealing are arranged at the joint of the connecting base and the mounting blocks. Modules capable of bearing a satellite phone, a functional assembly, a camera and an individual soldier terminal are arranged at the front, back, left and right positions of the top of the tray respectively. The tray can be steplessly adjusted in the horizontal angle and the pitching angle, so that the tray can be suitable for different working environments, the connecting position of the connecting base and the mounting block can be effectively sealed, and then rainwater or silt and the like are prevented from entering the connecting position to affect adjustment smoothness.

Description

Technical Field

[0001] This invention relates to fire communication support technology, specifically to a fire communication support tray-type tripod. Background Technology

[0002] Firefighting communication support is a crucial link in the response to emergencies such as fires and earthquakes. It relies on equipment and technologies such as dedicated communication networks, satellite communication, drone relay, and emergency communication vehicles to build an "all-weather, anti-interference, and low-latency" information transmission system. This system enables real-time audio and video communication, instruction transmission, data sharing, and synchronized resource scheduling among on-site rescue personnel, command centers, and cross-departmental collaborative units. It ensures the smooth flow of emergency "information lifeline" and provides core support for efficient rescue decision-making and personnel safety.

[0003] In constructing such communication support systems, tray-mounted tripods are widely used as a key equipment support platform for mounting critical equipment such as satellite phones, individual soldier image transmission systems, surveillance cameras, and communication speakers. However, most existing tripods have relatively simple functional designs and structures. Their trays typically only allow for simple fixed installation or have limited angle adjustment capabilities, which have significant drawbacks: First, the ability to adjust the horizontal azimuth and pitch angles is insufficient or completely absent, making it difficult to accurately align the equipment antennas or cameras with the satellite or target area during field deployment, especially in complex terrain environments, severely affecting signal reception quality and information acquisition effectiveness; second, the lack of effective locking and holding mechanisms makes them prone to displacement after adjustment due to the equipment's own weight or external forces, resulting in poor stability; finally, the joints and rotating connections of the tripod generally lack professional sealing designs, allowing rainwater and mud to easily penetrate the internal mechanisms in harsh outdoor environments such as rain, snow, and sandstorms, causing rotational jamming and corrosion, which not only affects the smoothness of adjustment but also significantly reduces the service life and reliability of the equipment.

[0004] To address the problems raised in the background art, those skilled in the art have proposed a fire communication protection tray-type tripod. Summary of the Invention

[0005] The purpose of this invention is to provide a fire communication protection tray-type tripod to solve the problems in the prior art where the tripod cannot flexibly adjust the level and tilt angle of the tray, and where contaminants easily enter the connection points in harsh environments, leading to adjustment failure.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fire communication support tray-type tripod, comprising a tripod, a mounting base fixedly connected to the top of the tripod, a tray disposed above the mounting base, a connecting base disposed at the bottom of the tray, a driving component for driving the tray to rotate horizontally disposed at the connection between the tray and the connecting base, mounting blocks fixedly connected to both sides of the top of the mounting base, a rotating component for adjusting the pitch angle of the tray and a sealing component for sealing disposed at the connection between the connecting base and the mounting blocks, and satellite phones, functional components, cameras and individual soldier terminals for recording and transmitting signals respectively disposed at the front, back, left and right positions of the top of the tray, and mounting bases for mounting the satellite phones, functional components, cameras and individual soldier terminals at their bottoms, wherein the mounting bases can be modularly customized according to the satellite phones, functional components, cameras and individual soldier terminals.

[0007] Furthermore, a U-shaped support base is fixedly connected to the top of the tray below the satellite phone. The inner walls on both sides of the support base are provided with grooves composed of cuboids and semi-cylinders. Rotary rods that slide and rotatably connect to the grooves are fixedly connected to both sides of the satellite phone. A small sunshade is also provided on the top of the tray, which can be stored. The functional components include audio equipment such as a fire 5G individual soldier device, a DV camera, and a small speaker, and different functional components can be replaced at any time.

[0008] Furthermore, the driving assembly includes a hollow slot, a vertical slot, a driving rod, a limiting slot, and a limiting ring. The hollow slot is formed inside the connecting seat, the vertical slot passes through the inner wall of the top of the hollow slot, the driving rod is fixedly connected to the center of the bottom of the tray and rotatably connected to the inner wall of the bottom of the vertical slot and the hollow slot, the limiting slot is formed at the top of the connecting seat and is located on the outer periphery of the vertical slot, and the limiting ring is fixedly connected to the bottom of the tray and rotatably connected to the limiting slot.

[0009] Furthermore, the drive assembly also includes a worm gear, an extension groove, a worm, a motor, transmission wheels, and a transmission belt. The worm gear is fixedly connected to the outer periphery of the drive rod near the bottom. The extension groove is opened on one side of the empty groove and communicates with the empty groove. The two ends of the worm are rotatably connected to the inner walls on both sides of the extension groove and mesh with the worm gear. The motor is installed inside the extension groove and is located on one side of the worm. The motor is equipped with a wireless remote control. Two sets of transmission wheels are provided and are fixedly connected to the drive shaft of the motor and one end of the worm, respectively. The transmission belt is wound around the two sets of transmission wheels.

[0010] Furthermore, the rotating assembly includes a rotating groove and a rotating shaft. The rotating groove is formed on the inner surface of the mounting block, and the rotating shaft is fixedly connected to both sides of the connecting seat and rotatably connected to the rotating groove.

[0011] Furthermore, the rotating assembly also includes a cavity, a sliding groove, a transverse groove, a pull rod, a slider, and a spring. The cavity is formed inside the rotating shaft. The sliding groove is formed on the inner walls of the top and bottom of the cavity. The transverse groove passes through the inner wall of the rotating groove and communicates with the cavity. The pull rod is rotatably connected to the transverse groove and its inner end extends into the cavity. The slider is fixedly connected to the inner end of the pull rod and slidably connected to the cavity and the sliding groove. The spring is sleeved on the outer periphery of the pull rod near its inner end and its two ends are respectively fixedly connected to the inner wall of the slider away from the connecting seat and the inner wall of the cavity away from the connecting seat.

[0012] Furthermore, the rotating assembly also includes a slot, a locking block, and a pulling block. The slot is provided in several groups and is opened on the outer surface of the mounting block and distributed in a ring around the outer periphery of the outer end of the transverse groove. The locking block is fixedly connected to the outer periphery of the pull rod near the outer end and is adapted to the size of the slot. The pulling block is fixedly connected to the outer end of the pull rod.

[0013] Furthermore, the sealing assembly includes a sealing groove, a mounting groove, a sealing ring, an air chamber, a piston, and a connecting hole. The sealing groove is formed on both sides of the connecting seat and is located on the outer periphery of the rotating shaft. The mounting groove is formed on the inner surface of the mounting block and is located on the outer periphery of the rotating groove. The sealing ring is installed inside the mounting groove. The sealing ring is made of rubber and is hollow inside. The air chamber is annular and is formed inside the mounting block. The piston is annular and is slidably connected to the air chamber. The connecting hole is formed on the inner wall of the air chamber near the sealing ring and communicates with the air chamber.

[0014] Furthermore, the sealing assembly also includes a first connecting groove, a connecting rod, a second connecting groove, and a connecting block. The first connecting groove is formed on the inner wall of the air chamber away from the sealing ring. The connecting rod is movably connected to the first connecting groove and fixedly connected to the piston away from the sealing ring. The second connecting groove is formed on the inner wall of the top and bottom of the transverse groove and communicates with the first connecting groove. The connecting block is rotatably connected to the outer periphery of the pull rod only. The connecting block is fixedly connected to the end of the connecting rod away from the piston and slidably connected to the second connecting groove.

[0015] Compared with existing technologies, the fire communication support tray-type tripod provided by this invention not only achieves omnidirectional, highly stable stepless adjustment of communication equipment in both horizontal and vertical directions through the synergistic action of horizontal drive and pitch rotation components, significantly improving signal alignment accuracy and information acquisition capabilities; but also, by incorporating a sealing component that can dynamically open and close according to the adjustment status, it effectively prevents rainwater, mud, and other contaminants from intruding into key rotating parts, thereby ensuring the smoothness, durability, and overall reliability of the mechanism in harsh environments, and comprehensively enhancing the adaptability and working efficiency of fire communication support equipment in complex field environments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the tray structure provided in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of a satellite phone connection structure provided in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the connector provided in an embodiment of the present invention;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0022] Figure 6 This is a schematic diagram of the internal structure of the mounting block provided in an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Tripod; 2. Mounting base; 3. Tray; 4. Connecting base; 5. Drive assembly; 51. Hollow slot; 52. Vertical slot; 53. Drive rod; 54. Worm gear; 55. Extension slot; 56. Worm; 57. Motor; 58. Transmission wheel; 59. Transmission belt; 510. Limiting slot; 511. Limiting ring; 6. Mounting block; 7. Rotating assembly; 71. Rotating groove; 72. Rotating shaft; 73. Cavity; 74. Slide groove; 75. Horizontal slot; 76. Tie rod; 77. Slider; 78. 8. Spring; 79. Slot; 710. Block; 711. Pull block; 8. Sealing assembly; 81. Sealing groove; 82. Mounting groove; 83. Sealing ring; 84. Air chamber; 85. Piston; 86. Connecting hole; 87. First connecting groove; 88. Connecting rod; 89. Second connecting groove; 810. Connecting block; 9. Satellite phone; 10. Camera; 11. Individual soldier terminal; 12. Functional component; 13. Sunshade; 14. Support base; 15. Groove; 16. Rotating rod. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] As attached Figure 1 To be continued Figure 6 As shown:

[0027] Example 1:

[0028] This invention provides a fire communication support tray-type tripod, comprising a tripod 1, a mounting base 2 fixedly connected to the top of the tripod 1, a tray 3 mounted above the mounting base 2, a connecting base 4 mounted at the bottom of the tray 3, a drive component 5 for driving the tray 3 to rotate horizontally at the connection between the tray 3 and the connecting base 4, mounting blocks 6 fixedly connected to both sides of the top of the mounting base 2, a rotation component 7 for adjusting the pitch angle of the tray 3 and a sealing component 8 for sealing at the connection between the connecting base 4 and the mounting blocks 6, and satellite phones 9, functional components 12, cameras 10 and individual soldier terminals 11 respectively mounted on the front, back, left and right sides of the top of the tray 3. The bottom of the camera 10 and the individual soldier terminal 11 are equipped with mounting bases. The mounting bases can be modularly customized according to the satellite phone 9, functional components 12, camera 10 and individual soldier terminal 11. The top of the tray 3 is fixedly connected to a U-shaped support base 14 below the satellite phone 9. The inner walls of both sides of the support base 14 are provided with grooves 15 composed of cuboids and semi-cylinders. The satellite phone 9 is fixedly connected to two rotating rods 16 that slide and rotate to the grooves 15. The top of the tray 13 is also equipped with a small sunshade 13, which can be stored. The functional components 12 include audio equipment such as fire 5G individual soldier, DV camera and small speaker, and different functional components can be replaced at any time.

[0029] Furthermore, the slot 51 is formed inside the connecting seat 4, the vertical slot 52 passes through the inner wall of the top of the slot 51, the drive rod 53 is fixedly connected to the bottom center of the tray 3 and rotatably connected to the inner wall of the bottom of the vertical slot 52 and the slot 51, the limiting slot 510 is formed at the top of the connecting seat 4 and is located on the outer periphery of the vertical slot 52, the limiting ring 511 is fixedly connected to the bottom of the tray 3 and rotatably connected to the limiting slot 510, the worm gear 54 is fixedly connected to the outer periphery of the drive rod 53 near the bottom, the extension slot 55 is formed on one side of the slot 51 and communicates with the slot 51, the two ends of the worm 56 are respectively rotatably connected to the inner walls of the two sides of the extension slot 55 and mesh with the worm gear 54, the motor 57 is installed inside the extension slot 55 and is located on one side of the worm 56, the motor 57 is equipped with a wireless remote control, the transmission wheel 58 is provided in two sets and is respectively fixedly connected to the drive shaft of the motor 57 and one end of the worm 56, and the transmission belt 59 is wound around the two sets of transmission wheels 58.

[0030] Working principle: First, the tripod 1 is moved to the designated position and fixed. Then, recording and signal transmission are performed through the satellite phone 9, functional component 12, camera 10, and individual soldier terminal 11. When it is necessary to adjust the orientation of the satellite phone 9, functional component 12, camera 10, and individual soldier terminal 11, the motor 57 is started by the wireless remote control, causing it to drive a set of transmission wheels 58 to rotate through the drive shaft. Since the transmission belt 59 is wrapped around the two sets of transmission wheels 58, the other set of transmission wheels 58 will drive the worm gear 56 to rotate synchronously with the drive shaft of the motor 57. The worm wheel 54 meshes with the worm gear 56, so the worm wheel 54 drives the drive rod 53 to rotate along with the worm gear 56. This, in turn, adjusts the orientation of the satellite phone 9, functional components 12, camera 10, and individual soldier terminal 11 via the tray 3. After adjusting to the appropriate orientation, the motor 57 is turned off, the drive rod 53 stops rotating, and the tray 3 is fixed at the current angle. During this process, the limiting ring 511 rotates synchronously with the tray 3 along the limiting groove 510 and limits and guides it, ensuring the stability of the tray 3 during rotation and preventing shaking and displacement.

[0031] Example 2:

[0032] This embodiment is basically the same as the previous embodiment, except that a rotating component 7 for adjusting the pitch angle of the tray 3 is provided at the connection between the connecting seat 4 and the mounting block 6. The rotating component 7 includes a rotating groove 71, a rotating shaft 72, a cavity 73, a sliding groove 74, a horizontal groove 75, a pull rod 76, a slider 77, a spring 78, a slot 79, a locking block 710, and a pulling block 711.

[0033] In one embodiment of the present invention, a rotating groove 71 is formed on the inner surface of the mounting block 6, a rotating shaft 72 is fixedly connected to both sides of the connecting seat 4 and rotatably connected to the rotating groove 71, a cavity 73 is formed inside the rotating shaft 72, a sliding groove 74 is formed on the top and bottom inner walls of the cavity 73, a transverse groove 75 penetrates the inner wall of the rotating groove 71 and communicates with the cavity 73, a pull rod 76 is rotatably connected to the transverse groove 75 and its inner end extends into the cavity 73, and a slider 77 is fixedly connected to the inner end of the pull rod 76 and slidably connected to the cavity 73 and... The slide groove 74 and the spring 78 are sleeved on the outer periphery of the pull rod 76 near the inner end and are respectively fixedly connected to the inner wall of the slider 77 away from the connecting seat 4 and the cavity 73 away from the connecting seat 4. Several sets of slots 79 are provided and opened on the outer surface of the mounting block 6 and distributed in a ring around the outer periphery of the outer end of the transverse groove 75. The locking block 710 is fixedly connected to the outer periphery of the pull rod 76 near the outer end and is adapted to the size of the slot 79. The pull block 711 is fixedly connected to the outer end of the pull rod 76. The tray 3 can be disassembled and stored.

[0034] Working principle: When the tilt angle of tray 3 needs to be adjusted, pull block 711 is pulled outward, causing it to slide slider 77 outward along cavity 73 and slide groove 74 via pull rod 76, thus compressing spring 78. When block 710 moves outward with pull rod 76 and moves out of slot 79, pull rod 76 is rotated to make slider 77 rotate synchronously. Since slider 77 is slidably connected to cavity 73 and slide groove 74, and slide groove 74 is opened on the top and bottom inner walls of cavity 73, slider 77 will drive rotating shaft 72 to rotate synchronously along rotating groove 71 with pull rod 76. Rotating shaft 72, in turn, drives the connecting seat 4 to rotate... The tray 3 rotates synchronously, thereby adjusting the pitch angle of the tray 3. After adjusting to a suitable angle, the pull block 711 is released, the spring 78 rebounds and drives the pull rod 76 to move inward through the slider 77. When the locking block 710 moves inward with the pull rod 76 into the insertion slot 79, the pull rod 76 can be fixed at the current angle, thereby keeping the tray 3 at the current angle. During this process, since the satellite phone 9 is fixedly connected to the rotating rod 16 on both sides and slidably connected to the groove 15, the satellite phone 9 will always remain vertical due to its own weight, thereby avoiding the satellite phone 9 tilting and causing poor signal reception.

[0035] Example 3:

[0036] This embodiment is basically the same as the previous embodiment, except that a sealing component 8 for sealing is also provided at the connection between the connecting seat 4 and the mounting block 6. The sealing component 8 includes a sealing groove 81, a mounting groove 82, a sealing ring 83, an air chamber 84, a piston 85, a connecting hole 86, a first connecting groove 87, a connecting rod 88, a second connecting groove 89, and a connecting block 810.

[0037] In one embodiment of the present invention, a sealing groove 81 is formed on both sides of the connecting seat 4 and is located on the outer periphery of the rotating shaft 72. A mounting groove 82 is formed on the inner side of the mounting block 6 and is located on the outer periphery of the rotating groove 71. A sealing ring 83 is installed inside the mounting groove 82. The sealing ring 83 is made of rubber and is hollow inside. An air cavity 84 is annular and is formed inside the mounting block 6. A piston 85 is annular and is slidably connected to the air cavity 84. A connecting hole 86 is formed on the inner wall of the air cavity 84 near the sealing ring 83 and communicates with the air cavity 84. A first connecting groove 87 is formed on the inner wall of the air cavity 84 away from the sealing ring 83. A connecting rod 88 is movably connected to the first connecting groove 87 and fixedly connected to the piston 85 away from the sealing ring 83. A second connecting groove 89 is formed on the inner walls of the top and bottom of the transverse groove 75 and communicates with the first connecting groove 87. A connecting block 810 is only rotatably connected to the outer periphery of the pull rod 76. The connecting block 810 is fixedly connected to the end of the connecting rod 88 away from the piston 85 and slidably connected to the second connecting groove 89.

[0038] Working principle: When the pull rod 76 is pulled outward to prepare for adjusting the pitch angle, the connecting block 810 will drive the connecting rod 88 to move outward synchronously along the second connecting groove 89 and the first connecting groove 87 with the pull rod 76. The connecting rod 88 will then drive the piston 85 to slide outward along the air chamber 84 and draw the air in the sealing ring 83 into the air chamber 84 through the connecting hole 86. When the sealing ring 83 deflates and is submerged in the mounting groove 82 to make room for the rotation of the shaft 72, the pitch angle of the tray 3 can be adjusted. The degree is adjusted. After adjustment, the pull rod 76 moves inward. At this time, the connecting block 810 drives the piston 85 to move inward along the air chamber 84 through the connecting rod 88 and sends the air in the air chamber 84 to the sealing ring 83 through the connecting hole 86. When the sealing ring 83 expands to fit tightly with the sealing groove 81, the connection between the connecting seat 4 and the mounting block 6 can be sealed, effectively preventing rainwater or mud and sand from entering the connection and affecting the smoothness of adjustment. This significantly improves the protection level and durability of the equipment in harsh outdoor environments.

[0039] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fire communication support tray-type tripod, comprising a tripod (1), characterized in that, The tripod (1) is fixedly connected to the top of the mounting base (2), and a tray (3) is provided above the mounting base (2). A connecting seat (4) is provided at the bottom of the tray (3). A drive component (5) for driving the tray (3) to rotate horizontally is provided at the connection between the tray (3) and the connecting seat (4). Mounting blocks (6) are fixedly connected to both sides of the top of the mounting base (2). A rotating component (7) for adjusting the pitch angle of the tray (3) and a sealing component (8) for sealing are provided at the connection between the connecting seat (4) and the mounting block (6). Modules for carrying satellite phone (9), functional component (12), camera (10) and individual soldier terminal (11) are respectively provided at the front, back, left and right positions of the top of the tray (3). A mounting base is provided at the bottom of the module carrying satellite phone (9), functional component (12), camera (10) and individual soldier terminal (11). The mounting bases can be modularly customized according to the satellite phone (9), functional component (12), camera (10) and individual soldier terminal (11).

2. The fire communication support tray-type tripod according to claim 1, characterized in that, The tray (3) is fixedly connected to a U-shaped support base (14) at the top of the satellite phone (9). The inner walls of both sides of the support base (14) are provided with grooves (15) composed of cuboids and semi-cylinders. The satellite phone (9) is fixedly connected to both sides with rotating rods (16) that slide and rotate in the grooves (15). The top of the tray (13) is also provided with a small sunshade (13), which can be stored. The functional components (12) include audio equipment such as fire 5G individual soldier, DV camera and small speaker, and different functional components can be replaced at any time.

3. The fire communication support tray-type tripod according to claim 1, characterized in that, The drive assembly (5) includes a slot (51), a vertical slot (52), a drive rod (53), a limiting slot (510), and a limiting ring (511). The slot (51) is located inside the connecting seat (4). The vertical slot (52) passes through the inner wall of the top of the slot (51). The drive rod (53) is fixedly connected to the center of the bottom of the tray (3) and rotatably connected to the inner wall of the bottom of the vertical slot (52) and the slot (51). The limiting slot (510) is located at the top of the connecting seat (4) and is on the outer periphery of the vertical slot (52). The limiting ring (511) is fixedly connected to the bottom of the tray (3) and rotatably connected to the limiting slot (510).

4. A fire communication support tray-type tripod according to claim 3, characterized in that, The drive assembly (5) further includes a worm gear (54), an extension groove (55), a worm (56), a motor (57), a transmission wheel (58), and a transmission belt (59). The worm gear (54) is fixedly connected to the outer periphery of the drive rod (53) near the bottom. The extension groove (55) is opened on one side of the empty groove (51) and is connected to the empty groove (51). The two ends of the worm (56) are respectively rotatably connected to the inner walls on both sides of the extension groove (55) and mesh with the worm gear (54). The motor (57) is installed inside the extension groove (55) and is located on one side of the worm (56). The motor (57) is equipped with a wireless remote control. The transmission wheel (58) is provided in two sets and is fixedly connected to the drive shaft of the motor (57) and one end of the worm (56). The transmission belt (59) is wound around the two sets of transmission wheels (58).

5. A fire communication support tray-type tripod according to claim 1, characterized in that, The rotating assembly (7) includes a rotating groove (71) and a rotating shaft (72). The rotating groove (71) is opened on the inner surface of the mounting block (6). The rotating shaft (72) is fixedly connected to both sides of the connecting seat (4) and rotatably connected to the rotating groove (71).

6. A fire communication support tray-type tripod according to claim 5, characterized in that, The rotating assembly (7) further includes a cavity (73), a slide groove (74), a transverse groove (75), a pull rod (76), a slider (77), and a spring (78). The cavity (73) is opened inside the rotating shaft (72). The slide groove (74) is opened on the inner wall of the top and bottom of the cavity (73). The transverse groove (75) passes through the inner wall of the rotating groove (71) and is connected to the cavity (73). The pull rod (76) is rotatably connected to the transverse groove (75) and its inner end extends into the cavity (73). The slider (77) is fixedly connected to the inner end of the pull rod (76) and slidably connected to the cavity (73) and the slide groove (74). The spring (78) is sleeved on the outer periphery of the pull rod (76) near the inner end and its two ends are fixedly connected to the inner wall of the slider (77) away from the connecting seat (4) and the inner wall of the cavity (73) away from the connecting seat (4), respectively.

7. A fire communication support tray-type tripod according to claim 6, characterized in that, The rotating assembly (7) also includes a slot (79), a block (710), and a pull block (711). The slot (79) is provided in several groups and is opened on the outer surface of the mounting block (6) and distributed in a ring around the outer periphery of the outer end of the transverse groove (75). The block (710) is fixedly connected to the outer periphery of the pull rod (76) near the outer end and is adapted to the size of the slot (79). The pull block (711) is fixedly connected to the outer end of the pull rod (76).

8. A fire communication support tray-type tripod according to claim 6, characterized in that, The sealing assembly (8) includes a sealing groove (81), a mounting groove (82), a sealing ring (83), an air chamber (84), a piston (85), and a connecting hole (86). The sealing groove (81) is opened on both sides of the connecting seat (4) and is located on the outer periphery of the rotating shaft (72). The mounting groove (82) is opened on the inner side of the mounting block (6) and is located on the outer periphery of the rotating groove (71). The sealing ring (83) is installed inside the mounting groove (82). The sealing ring (83) is made of rubber and is hollow inside. The air chamber (84) is annular and is opened inside the mounting block (6). The piston (85) is annular and is slidably connected to the air chamber (84). The connecting hole (86) is opened on the inner wall of the air chamber (84) near the sealing ring (83) and is connected to the air chamber (84).

9. A fire communication support tray-type tripod according to claim 8, characterized in that, The sealing assembly (8) further includes a first connecting groove (87), a connecting rod (88), a second connecting groove (89), and a connecting block (810). The first connecting groove (87) is opened on the inner wall of the air chamber (84) away from the sealing ring (83). The connecting rod (88) is movably connected to the first connecting groove (87) and fixedly connected to the piston (85) on the side away from the sealing ring (83). The second connecting groove (89) is opened on the inner wall of the top and bottom of the transverse groove (75) and communicates with the first connecting groove (87). The connecting block (810) is only rotatably connected to the outer periphery of the pull rod (76). The connecting block (810) is fixedly connected to the end of the connecting rod (88) away from the piston (85) and slidably connected to the second connecting groove (89).

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