A remote transmission device for combustible gas alarm signals at gas stations

Abstract

This utility model discloses a remote transmission device for combustible gas alarm signals at gas stations, including a main body for the device. The main body comprises an information transmission integration module, a manually operated alarm release lock, a notification module, and an alarm main body mechanism electrically connected to it. This utility model, through a series of structural features, ensures the long-term stability of the grounding of the electrostatic conductor by keeping the conductor slider in constant elastic tension against the ground. This avoids the grounding failure caused by gaps due to ground vibrations and other factors in existing simple grounding systems, improving the stability of electrostatic conduction elimination. Furthermore, it facilitates the vertical adjustment of the alarm main body mechanism, allowing personnel to perform subsequent safe maintenance and repairs without climbing, reducing the safety hazards of climbing and improving the convenience and safety of subsequent maintenance.

Description

Technical Field

[0001] This utility model relates to the field of combustible gas alarm technology, specifically a remote transmission device for combustible gas alarm signals at gas stations. Background Technology

[0002] With the continuous development of society and the continuous progress of science, the application fields of combustible gases are rapidly expanding. While bringing great convenience to people's production and life, due to their flammable and explosive characteristics, when combustible gases leak into the air and reach a certain concentration range, they are very likely to explode, posing a great threat to people's lives and property. In order to prevent such incidents, it is very necessary to detect combustible gas leaks at gas stations. Existing combustible gas monitoring alarms (gas monitoring alarms) generate static electricity during use, which may cause combustible gases to spontaneously combust.

[0003] In response, a search revealed that announcement number CN215421380U discloses a remote transmission device for combustible gas alarm signals at gas stations. The device includes an alarm body with an electrostatic ring fixedly connected to its lower interior and a support rod fixedly connected to its bottom. A heat dissipation mechanism inside a heat sink housing activates a motor within the mechanism. The motor's outer side is fixed to the inner side of the heat sink housing via a fixed connecting rod. The motor's drive end drives a fixedly connected cooling fan, which expels heat from the inside of the protective housing from both sides. Heat dissipation grooves are provided around the alarm body to improve the heat dissipation effect of the heat dissipation mechanism. Rectangular holes are also provided on both sides of the bottom of the protective housing for ventilation. This design prevents false alarms caused by overheating of the internal alarm module, thus improving the accuracy and practicality of the alarm module.

[0004] The aforementioned technology discloses a remote transmission device for combustible gas alarm signals at gas stations. Through an information transmission integration module, a notification module, and an alarm body, it achieves remote transmission of combustible gas alarm signals. A heat dissipation mechanism on the alarm body provides auxiliary heat dissipation, and a support pipe and electrostatic conductor at its bottom provide elevated support and electrostatic discharge, ensuring safe use. However, it still has the following shortcomings: 1. It lacks a stable ground contact mechanism; direct grounding of the electrostatic conductor at the bottom is prone to separation due to ground vibrations, leading to grounding failure, and the stability of electrostatic conduction is poor; 2. Since the alarm body is usually installed at a high position for monitoring, it requires a long support pipe for fixed support. This fixed length support method cannot be adjusted, and subsequent maintenance requires personnel to climb to a height, posing a certain safety hazard. The safety and convenience of subsequent maintenance are also poor. Therefore, this application proposes a remote transmission device for combustible gas alarm signals at gas stations to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a remote transmission device for combustible gas alarm signals at gas stations, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combustible gas alarm signal remote transmission device for gas stations, comprising a combustible gas alarm signal remote transmission device body, the combustible gas alarm signal remote transmission device body comprising an information transmission integration module and a manual alarm release lock, a notification module and an alarm main body mechanism electrically connected thereto, the alarm main body mechanism having an alarm module built in, which is electrically connected to the information transmission integration module, the manual alarm release lock and the notification module, a support tube and an electrostatic wire located inside the support tube are fixedly installed at the bottom of the alarm main body mechanism, and a wire stable grounding type lifting and adjusting mechanism is installed on the support tube;

[0007] The conductor-stabilized grounding type lifting and adjusting mechanism includes:

[0008] The outer tube is slidably sleeved on the outside of the support tube, and rectangular grooves are provided on the inner walls of both sides.

[0009] The support assembly is fixedly installed on the outside of the outer tube; the support assembly is used to support and reinforce the outer tube from below.

[0010] The spring-loaded abutment assembly is fixedly connected to the bottom of the inner side of the outer tube and to the bottom end of the electrostatic conductor; the spring-loaded abutment assembly is used to always be in tight contact with the ground so that the electrostatic conductor can stably conduct static electricity to the ground;

[0011] The linkage threaded lifting drive assembly is installed at the top of the outer tube and in two rectangular sliding grooves, and is fixedly connected to the bottom of the outer side of the support tube. The linkage threaded lifting drive assembly is used to drive the support tube to move downward or upward, thereby driving the alarm main body to move up and down, so that personnel can perform safe inspection and maintenance work on the alarm main body directly from below without having to climb.

[0012] Preferably, the fixed support assembly includes a fixed plate and four diagonal braces. The fixed plate is fixedly sleeved on the bottom of the outer side of the outer tube. The top of the fixed plate has multiple mounting holes at equal intervals in a ring. The four diagonal braces are fixedly connected in a ring at equal intervals between the top of the fixed plate and the outer side of the outer tube, with two opposite diagonal braces arranged symmetrically.

[0013] Preferably, the elastic abutment assembly includes a circular sleeve, a conductive slider, two T-shaped guide rods, and two compression springs in a compressed state. The circular sleeve is fixedly connected to the bottom of the inner side of the outer tube, and the top of the circular sleeve is configured as a sealing structure. The conductive slider is slidably fitted inside the circular sleeve. The bottom ends of the two T-shaped guide rods are fixedly connected to the top of the conductive slider. The circular sleeve is slidably fitted on the two T-shaped guide rods. The two compression springs are fixedly connected between the top of the conductive slider and the inner wall of the top of the circular sleeve. The compression springs are movably fitted on the corresponding T-shaped guide rods. The bottom end of the electrostatic wire extends into the circular sleeve and is fixedly connected to the top of the conductive slider.

[0014] Preferably, the linkage-type threaded lifting drive assembly includes an annular box, an external gear ring, two gears, two screws, two rectangular sliders, and a rocker plate. The annular box is movably sleeved on the outside of the support tube and fixedly connected to the top of the outer tube. The external gear ring is rotatably mounted on the inner wall of the top of the annular box. The two gears are respectively meshed on both sides of the external gear ring. The two screws are respectively rotatably mounted between the inner walls of the top and bottom of the corresponding rectangular slide grooves. The two rectangular sliders are respectively slidably connected in the corresponding rectangular slide grooves and threaded onto the screws. The sides of the two rectangular sliders that are close to each other are fixedly connected to the bottom of both sides of the support tube. The tops of the two screws extend into the annular box and are respectively fixedly connected to the bottom of the corresponding gears. A connecting shaft is fixedly connected to the top of the gear on the left side. The top of the connecting shaft movably extends out to the top of the annular box and is fixedly connected to the bottom of the rocker plate.

[0015] Preferably, the top of the sleeve has a circular movable through hole, and the electrostatic wire is located inside the circular movable through hole and does not contact its inner side.

[0016] Preferably, the annular box consists of an annular box body with an opening at the top and an annular cover plate fixed to its top. A first bearing is fixedly installed on the annular cover plate, and the inner ring of the first bearing is fixedly fitted to the outer side of the outer gear ring.

[0017] Preferably, the top of the rectangular slider has a threaded hole that is threaded to the corresponding screw.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By combining the fixed support components with the outer tube, stable support and reinforcement of the support tube can be achieved;

[0020] 2. By combining the set elastic abutment component and the electrostatic conductor, the grounding stability of the electrostatic conductor can be ensured by keeping the conductor slider in constant elastic tension with the ground. This avoids the phenomenon of grounding failure caused by the separation of the existing simple grounding due to ground vibration and other factors, and improves the stability of electrostatic conduction elimination.

[0021] 3. Combined with the set linkage screw lifting drive component, the height of the alarm main body can be adjusted by moving it up and down. By lowering the height, personnel can stand directly at the bottom to safely inspect and maintain the alarm main body without climbing, reducing the safety hazards of climbing and improving the convenience and safety of subsequent maintenance.

[0022] This utility model, through a series of structures, ensures the long-term stability of the grounding of the electrostatic conductor by keeping the conductor slider in constant elastic tension against the ground. This avoids the grounding failure caused by gaps due to ground vibration and other factors in existing simple grounding systems, thus improving the stability of electrostatic conduction elimination. Furthermore, it facilitates the vertical adjustment of the alarm's main body, allowing for height reduction so that personnel can perform subsequent safe maintenance and repairs without climbing, thus reducing the safety hazards of climbing and improving the convenience and safety of subsequent maintenance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a remote transmission device for combustible gas alarm signals at a gas station proposed in this utility model.

[0024] Figure 2 This utility model presents a three-dimensional structural diagram of the support pipe, alarm main body, and wire-stabilized grounding lifting and adjusting mechanism connecting parts of a combustible gas alarm signal remote transmission device for gas stations.

[0025] Figure 3 This utility model Figure 2 A schematic diagram of the structure viewed from below;

[0026] Figure 4 For the present utility model Figure 1 A magnified structural diagram of part A in the diagram;

[0027] Figure 5 For the present utility model Figure 4 A magnified structural diagram of part B in the diagram;

[0028] Figure 6 For the present utility model Figure 4 A magnified structural diagram of part C in the diagram.

[0029] In the diagram: 1. Manually release alarm lock; 101. Information transmission integration module; 102. Notification module; 103. Main body of the alarm; 104. Support tube; 105. Static electricity wire; 2. Outer tube; 201. Fixing plate; 202. Diagonal brace; 203. Rectangular slide; 3. Circular sleeve; 301. Conductive slider; 302. Compression spring; 303. T-shaped guide rod; 4. Annular box; 401. External gear ring; 402. Gear; 403. Rocking disc; 404. Screw; 405. Rectangular slider. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] like Figure 1 As shown:

[0033] This embodiment proposes a combustible gas alarm signal remote transmission device for gas stations, including a combustible gas alarm signal remote transmission device body. The combustible gas alarm signal remote transmission device body includes an information transmission integration module 101 and a manual alarm release lock 1, a notification module 102, and an alarm main body mechanism 103 electrically connected to it. The alarm main body mechanism 103 has an alarm module built in it that is electrically connected to the information transmission integration module 101, the manual alarm release lock 1, and the notification module 102. A support tube 104 and an electrostatic wire 105 located inside the support tube 104 are fixedly installed at the bottom of the alarm main body mechanism 103.

[0034] In this implementation plan: The existing device {Publication (Announcement) No.}: CN215421380U discloses a remote transmission device for combustible gas alarm signals in gas stations. The manual alarm release lock 1, notification module 102, and alarm main body mechanism 103 in this application document adopt the same technical means as in this prior art. These technical means will not be described in detail here. Regarding this existing main body, this application makes further improvements. For details, please refer to the disclosed technology below. In order to solve the technical problems existing in this prior art, such as "1. Lack of a stable ground contact mechanism, direct grounding of the bottom end of the electrostatic conductor is easy" in the background technology disclosure above. 1. Grounding failure due to ground vibration and other factors; poor stability of static electricity conduction elimination; 2. Since the main body of the alarm is usually installed at a high position for monitoring, it needs to be fixed with a long support pipe. The direct fixed length support method cannot be adjusted. Subsequent maintenance of the main body of the alarm requires personnel to climb to a height, which poses certain safety hazards. The safety and convenience of subsequent maintenance are not good. In terms of use, this problem is obviously a real and difficult problem to solve. Therefore, in order to solve this technical problem, a wire stable grounding lifting and adjusting mechanism has been added to this application.

[0035] It should be noted that the manual alarm release lock 1, the notification module 102, and the alarm main body mechanism 103 are technologies already disclosed in the prior art, and therefore the internal structure is not fully described. The accessories used are disclosed in publication number CN215421380U, and their performance can be referred to publication number CN215421380U (that is, the prior art disclosed in this prior art consists of "manual alarm release lock, information transmission integration module, notification module, alarm main body, alarm light, alarm bell, protective shell, heat dissipation and dust removal device, fixing rod, rain cover, static ring, positioning slide rail, limit block, static wire, heat dissipation shell, blocking mesh, dustproof mesh, motor, fixing connecting rod and cooling fan components").

[0036] Furthermore:

[0037] like Figures 1 to 6 As shown, a wire-stabilized grounding type lifting and adjusting mechanism is installed on the support pipe 104;

[0038] The conductor-stabilized grounding type lifting and adjusting mechanism includes:

[0039] The outer tube 2 is slidably sleeved on the outside of the support tube 104, and rectangular grooves 203 are provided on the inner walls of both sides of the outer tube 2;

[0040] The support assembly is fixedly installed on the outside of the outer tube 2; the support assembly is used to support and reinforce the outer tube 2 at the bottom.

[0041] The spring-loaded abutment assembly is fixedly connected to the bottom of the inner side of the outer tube 2 and fixedly connected to the bottom end of the electrostatic conductor 105; the spring-loaded abutment assembly is used to always be in tight contact with the ground so that the electrostatic conductor 105 can stably conduct static electricity to the ground;

[0042] The linkage threaded lifting drive assembly is installed at the top of the outer tube 2 and inside the two rectangular slides 203, and is fixedly connected to the bottom of the outer side of the support tube 104. The linkage threaded lifting drive assembly is used to drive the support tube 104 to move downward or upward, thereby driving the alarm main body mechanism 103 to move up and down, so that personnel can perform safe inspection and maintenance work on the alarm main body mechanism 103 directly from below without climbing.

[0043] Furthermore, such as Figure 1 , 2 As shown in Figures 3 and 4, the fixed support assembly includes a fixed plate 201 and four diagonal braces 202. The fixed plate 201 is fixedly sleeved on the bottom of the outer side of the outer tube 2. The top of the fixed plate 201 has multiple mounting holes at equal intervals in a ring. The four diagonal braces 202 are fixedly connected between the top of the fixed plate 201 and the outer side of the outer tube 2 in a ring at equal intervals. The two diagonal braces 202 opposite each other are symmetrically arranged.

[0044] In this implementation scheme, the fixed plate 201, multiple mounting holes and four diagonal braces 202 are used together. The multiple mounting holes are used for personnel to install and fix the fixed plate 201 with external fixing bolts. The fixed plate 201 and the four diagonal braces 202 provide stable support for the outer pipe 2, thereby achieving stable support and reinforcement for the support pipe 104.

[0045] Furthermore, such as Figure 4 and 5 As shown, the elastic abutment assembly includes a circular sleeve 3, a conductive slider 301, two T-shaped guide rods 303, and two compression springs 302 in a compressed state. The circular sleeve 3 is fixedly connected to the bottom of the inner side of the outer tube 2. The top of the circular sleeve 3 is set as a sealing structure. The conductive slider 301 is slidably sleeved inside the circular sleeve 3. The bottom ends of the two T-shaped guide rods 303 are fixedly connected to the top of the conductive slider 301. The circular sleeve 3 is slidably sleeved on the two T-shaped guide rods 303. The two compression springs 302 are fixedly connected between the top of the conductive slider 301 and the inner wall of the top of the circular sleeve 3. The compression springs 302 are movably sleeved on the corresponding T-shaped guide rods 303. The bottom end of the electrostatic wire 105 extends into the circular sleeve 3 and is fixedly connected to the top of the conductive slider 301.

[0046] In this embodiment, the top of the circular sleeve 3 is provided with a circular movable through hole, and the electrostatic wire 105 is located inside the circular movable through hole and does not contact its inner side, so as to allow the electrostatic wire 105 to move through; wherein the top of the circular sleeve 3 is provided with two vertical guide holes that are slidably connected to the outer side of the corresponding T-shaped guide rod 303, so as to guide the T-shaped guide rod 303 to slide vertically.

[0047] In this embodiment, the circular sleeve 3, the conductive slider 301, the two T-shaped guide rods 303, and the two compression springs 302 in a compressed state cooperate to keep the conductive slider 301 elastically taut downwards, so that the conductive slider 301 is always taut and in close contact with the ground. This allows the electrostatic conductor 105 to stably conduct static electricity to the ground through the conductive slider 301. By elastically taut and in close contact with the ground, the phenomenon of grounding failure caused by the separation of existing simple grounding due to ground vibration and other factors is avoided, thus improving the stability of static electricity conduction and elimination.

[0048] Furthermore, such as Figure 1 , 2As shown in Figures 4 and 6, the linkage-type threaded lifting drive assembly includes an annular box 4, an external gear ring 401, two gears 402, two screws 404, two rectangular sliders 405, and a rocker plate 403. The annular box 4 is movably sleeved on the outside of the support tube 104 and fixedly connected to the top of the outer tube 2. The external gear ring 401 is rotatably mounted on the inner wall of the top of the annular box 4. The two gears 402 are respectively meshed on both sides of the external gear ring 401. The two screws 404 are respectively rotatably mounted on the inner wall of the top and bottom of the corresponding rectangular slide grooves 203. Between the inner walls of the part, two rectangular sliders 405 are slidably connected in the corresponding rectangular grooves 203 and threaded onto the screws 404. The sides of the two rectangular sliders 405 that are close to each other are fixedly connected to the bottom of the two sides of the support tube 104. The tops of the two screws 404 extend into the annular box 4 and are fixedly connected to the bottom of the corresponding gears 402. The top of the gear 402 on the left side is fixedly connected to a connecting shaft. The top of the connecting shaft extends movably out to the top of the annular box 4 and is fixedly connected to the bottom of the rocker plate 403.

[0049] In this embodiment, the annular box 4 consists of an annular box body with an opening at the top and an annular cover plate fixed to its top. A first bearing is fixedly installed on the annular cover plate. The inner ring of the first bearing is fixedly fitted to the outer side of the outer gear ring 401, so as to achieve the effect of rotating the outer gear ring 401. The top of the rectangular slider 405 is provided with a threaded hole that is threadedly connected to the corresponding screw 404. The threaded connection between the screw 404 and the threaded hole facilitates the upward and downward displacement of the rectangular slider 405 when the screw 404 rotates.

[0050] In this embodiment, a first circular hole is provided on the top inner wall of the rectangular slide 203. A second bearing is fixedly installed in the first circular hole and on the bottom inner wall of the rectangular slide 203. The inner side of the inner ring of the second bearing is fixedly connected to the outer side of the corresponding screw 404, so as to achieve the effect of rotating the screw 404. The bottom of the annular box 4 has two second circular holes for the corresponding screw 404 to move through.

[0051] In this implementation scheme, the ring box 4, the outer gear ring 401, two gears 402, two screws 404, two rectangular sliders 405, and the rocker 403 work together. When a person rotates the rocker 403, it drives the left gear 402 to rotate via the connecting shaft. The left gear 402 drives the outer gear ring 401 to rotate, and the outer gear ring 401 drives the right gear 402 to rotate. This causes the two gears 402 to rotate synchronously and drive the two screws 404 to rotate. The rotation of the two screws 404 drives the two rectangular sliders 405 to move downward or upward. The two rectangular sliders 405 drive the support tube 104 to slide downward or upward within the outer tube 2. The support tube 104 drives the alarm main body mechanism 103 to move up and down, achieving the effect of conveniently adjusting the height of the alarm main body mechanism 103. By lowering the height, personnel can perform subsequent safe maintenance and repair work on the alarm main body mechanism 103 without having to climb, improving the convenience and safety of subsequent maintenance.

[0052] It should be noted that the electrostatic conductor 105 is preferably made of soft conductor, so that the support tube 104 can be bent and pulled back adaptively when it moves up and down.

[0053] The usage method of this embodiment is as follows: When the combustible gas alarm signal remote transmission device of the gas station is used, the main body mechanism 103 of the alarm monitors the combustible gas on site and starts to alarm when the combustible gas concentration exceeds the preset value. The alarm signal is transmitted to the notification module 102 through the information transmission integration module 101 to notify the relevant management personnel for handling. The technology and principle of manually releasing the alarm lock 1 to allow personnel to manually turn off the alarm of the main body mechanism 103 of the alarm are existing technologies and have been disclosed in the above-mentioned technology CN215421380U. They are the same as those technologies and will not be described again here.

[0054] Multiple mounting holes are provided for personnel to install and fix the fixing plate 201 with external fixing bolts. The fixing plate 201 is used to provide stable support for the outer tube 2 through four diagonal braces 202, thereby achieving stable support and reinforcement for the support tube 104. Two compression springs 302, which are in a compressed state, are always elastically tightened downward on the conductive slider 301, so that the conductive slider 301 is always taut and in close contact with the ground. This allows the electrostatic conductor 105 to stably conduct static electricity to the ground through the conductive slider 301. By using the elastic tight contact with the ground, the phenomenon of grounding failure caused by the separation of the existing simple grounding due to ground vibration and other factors is avoided, thus improving the stability of static electricity conduction and elimination.

[0055] Personnel rotate the rocker 403 to drive the connecting shaft, which in turn drives the left gear 402 to rotate. The left gear 402 drives the outer gear ring 401 to rotate, and the outer gear ring 401 drives the right gear 402 to rotate. This causes the two gears 402 to rotate synchronously, driving the two screws 404 to rotate. The rotation of the two screws 404 drives the two rectangular sliders 405 to move downwards or upwards. The two rectangular sliders 405 drive the support tube 104 to slide downwards or upwards within the outer tube 2. The support tube 104 drives the alarm main body mechanism 103 to move up and down, achieving the effect of conveniently adjusting the height of the alarm main body mechanism 103. By lowering the height, personnel can perform subsequent safe maintenance and repair work on the alarm main body mechanism 103 from below without climbing, reducing the safety hazards of climbing and improving the convenience and safety of subsequent maintenance.

[0056] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A combustible gas alarm signal remote transmission device for gas stations, comprising a combustible gas alarm signal remote transmission device body, the combustible gas alarm signal remote transmission device body comprising an information transmission integration module (101) and electrically connected to it a manual alarm release lock (1), a notification module (102) and an alarm main body mechanism (103), the alarm main body mechanism (103) having an alarm module built-in that is electrically connected to the information transmission integration module (101), the manual alarm release lock (1) and the notification module (102), the alarm main body mechanism (103) having a support tube (104) and an electrostatic wire (105) located inside the support tube (104) fixedly installed at the bottom, characterized in that: The support tube (104) is equipped with a wire-stabilized grounding type lifting and adjusting mechanism; The conductor-stabilized grounding type lifting and adjusting mechanism includes: The outer tube (2) is slidably sleeved on the outside of the support tube (104), and rectangular grooves (203) are provided on the inner walls on both sides; The support assembly is fixedly installed on the outside of the outer tube (2); The elastic abutment assembly is fixedly connected to the bottom of the inner side of the outer tube (2) and fixedly connected to the bottom end of the electrostatic wire (105); The linkage threaded lifting drive assembly is installed at the top of the outer tube (2) and inside the two rectangular slides (203), and is fixedly connected to the bottom of the outer side of the support tube (104).

2. The remote transmission device for combustible gas alarm signals at gas stations according to claim 1, characterized in that: The fixed support assembly includes a fixed plate (201) and four diagonal braces (202). The fixed plate (201) is fixedly sleeved on the bottom of the outer side of the outer tube (2). The top of the fixed plate (201) has multiple mounting holes at equal intervals in a ring. The four diagonal braces (202) are fixedly connected in a ring at equal intervals between the top of the fixed plate (201) and the outer side of the outer tube (2). The two diagonal braces (202) are symmetrically arranged opposite each other.

3. The remote transmission device for combustible gas alarm signals at gas stations according to claim 1, characterized in that: The elastic abutment assembly includes a circular sleeve (3), a conductive slider (301), two T-shaped guide rods (303), and two compression springs (302) in a compressed state. The circular sleeve (3) is fixedly connected to the bottom of the inner side of the outer tube (2). The top of the circular sleeve (3) is set as a sealing structure. The conductive slider (301) is slidably fitted inside the circular sleeve (3). The bottom ends of the two T-shaped guide rods (303) are fixedly connected to the top of the conductive slider (301). The circular sleeve (3) is slidably fitted on the two T-shaped guide rods (303). The two compression springs (302) are fixedly connected between the top of the conductive slider (301) and the inner wall of the top of the circular sleeve (3). The compression springs (302) are movably fitted on the corresponding T-shaped guide rods (303). The bottom end of the electrostatic wire (105) extends into the circular sleeve (3) and is fixedly connected to the top of the conductive slider (301).

4. The remote transmission device for combustible gas alarm signals at gas stations according to claim 1, characterized in that: The linkage-type threaded lifting drive assembly includes an annular box (4), an external gear ring (401), two gears (402), two screws (404), two rectangular sliders (405), and a rocker plate (403). The annular box (4) is movably sleeved on the outside of the support tube (104) and fixedly connected to the top of the outer tube (2). The external gear ring (401) is rotatably mounted on the inner wall of the top of the annular box (4). The two gears (402) are respectively meshed on both sides of the external gear ring (401). The two screws (404) are respectively rotatably mounted on the inner wall of the top of the corresponding rectangular slide groove (203) and the rocker plate (403). Between the bottom inner walls, two rectangular sliders (405) are slidably connected in the corresponding rectangular grooves (203) and threaded onto the screws (404). The sides of the two rectangular sliders (405) that are close to each other are fixedly connected to the bottom of the two sides of the support tube (104). The tops of the two screws (404) extend into the annular box (4) and are fixedly connected to the bottom of the corresponding gears (402). The top of the gear (402) on the left side is fixedly connected to a connecting shaft. The top of the connecting shaft moves out to the top of the annular box (4) and is fixedly connected to the bottom of the rocker plate (403).

5. A remote transmission device for combustible gas alarm signals at gas stations according to claim 3, characterized in that: The top of the sleeve (3) is provided with a circular movable through hole, and the electrostatic wire (105) is located inside the circular movable through hole and does not contact its inner side.

6. A remote transmission device for combustible gas alarm signals at gas stations according to claim 4, characterized in that: The annular box (4) consists of an annular box body with an opening at the top and an annular cover plate fixed at its top. A first bearing is fixedly installed on the annular cover plate, and the inner ring of the first bearing is fixedly fitted to the outer side of the outer gear ring (401).

7. A remote transmission device for combustible gas alarm signals at gas stations according to claim 4, characterized in that: The top of the rectangular slider (405) has a threaded hole that is threaded to the corresponding screw (404).

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