Portable anti-breakthrough alarm fence

Abstract

The invention discloses a portable anti-breakthrough alarm fence which comprises a main body unit, the main body unit comprises a plurality of stand columns, a plurality of handrails are jointly fixed between the adjacent stand columns, a support is arranged at the tops of the stand columns, a first storage groove is formed in the bottom of the support, the stand columns can be embedded into the first storage groove, a positioning plate is arranged in the first storage groove and can abut against the stand columns, and the stand columns are arranged in the first storage groove; one side of the positioning plate is rotationally connected with a first screw rod, and the first screw rod penetrates through the support and is in threaded connection with the support. When the infrared sensor detects that a non-experimenter approaches, the buzzer is started through the controller to enable the warning lamp to give a flashing alarm to remind pedestrians to pay attention, and when the non-experimenter breaks through the fence, the buzzer and the warning lamp are started through the vibration sensor to enable the buzzer to give a voice alarm and the warning lamp to give a flashing alarm to remind pedestrians to pay attention. Testers are reminded to check field conditions in time, and non-testers are prevented from breaking through the fence.

Description

Technical Field

[0001] The present invention relates to the technical field of fences, and in particular to a portable anti-breakthrough warning fence. Background Art

[0002] The number of high-voltage tests such as high-voltage equipment handover test, interval commissioning, and pre-test is increasing. As one of the necessary links in operation and maintenance, high-voltage electrical tests in different environments have their own particularity and uncertainty. Under such conditions, it is easy to form safety hazards, posing a threat to personal and equipment safety. The potential risk of accidents caused by unrelated personnel accidentally entering the high-voltage test site is gradually increasing.

[0003] Under normal conditions, staff generally choose to use professional fences for risk prevention. This type of fence is usually a safety fence with warning signs. This type of fence is usually marked with indicative text. This form of warning is relatively simple and the effect is not ideal, especially at night when the light is dim, it is more difficult for pedestrians to notice the warning signs. It is worth noting that the fence site needs reminders and dissuasion from the test supervisor. If there is no supervisor present (especially at night), coupled with low visibility at night, it is possible for outsiders to mistakenly enter the test fence, causing damage to equipment and instruments and personal safety hazards. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above-mentioned problem of a portable anti-breakthrough warning fence, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a portable anti-breakthrough alarm fence, which is used to solve the problem that the existing fence site requires reminders and dissuasion from test supervisors. If there are no supervisors on site (especially at night), and the visibility is low at night, it is possible for outsiders to mistakenly enter the test fence, causing damage to equipment and instruments and accidents that endanger personal safety.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a portable anti-breakthrough alarm fence, comprising:

[0008] The main body unit includes a plurality of columns, a plurality of railings are fixed between adjacent columns, a bracket is arranged on the top of the column, a receiving groove is arranged on the bottom of the bracket, and the column can be embedded in the receiving groove, a positioning plate is arranged in the receiving groove, the positioning plate can be pressed against the column, a screw rod is rotatably connected to one side of the positioning plate, and the screw rod passes through the bracket and is threadedly connected to the bracket;

[0009] The warning unit includes an inner cavity opened at the top of the bracket, a tooth plate 2 is slidably connected in the inner cavity, a mounting plate is fixed on the top of the tooth plate 2, a base is arranged above the mounting plate, a U-shaped plate is fixed on the top of the base, a buzzer and a warning light are installed on the top of the U-shaped plate, and an auxiliary component for quickly installing or disassembling the base is arranged in the mounting plate.

[0010] As a preferred solution of the portable anti-breakthrough alarm fence described in the present invention, a vibration sensor, a controller and an infrared sensor are installed on the top of the base, a battery compartment is opened in the U-shaped plate, and a battery is arranged in the battery compartment. The buzzer, warning light, vibration sensor, controller and infrared sensor are all electrically connected to the battery, the output ends of the vibration sensor and infrared sensor are connected to the input end of the controller, and the input ends of the warning light and buzzer are connected to the output end of the controller.

[0011] As a preferred solution of the portable anti-breakthrough alarm fence described in the present invention, wherein: a second storage groove is opened in the U-shaped plate, and the second storage groove is connected to the battery compartment, a baffle is slidably connected in the second storage groove to block the battery in the battery compartment, and a plurality of second springs are arranged in the second storage groove, and the two ends of the second spring are respectively fixed to the inner wall of the second storage groove and one side of the baffle.

[0012] As a preferred solution of the portable anti-breakthrough warning fence described in the present invention, the U-shaped plate is provided with a travel groove 1 connected to the storage groove 2, a lever is fixed on one side of the baffle, and the lever is slidably fitted in the travel groove 1.

[0013] As a preferred solution of the portable anti-breakthrough alarm fence described in the present invention, the auxiliary components are provided with positioning grooves on both sides of the base, the top of the mounting plate is provided with a chamber one for accommodating the base, the mounting plate is provided with two chambers two connected to the chamber one, a right-angled trapezoidal plate is slidably connected to the chamber two, a spring one is provided in the chamber two, and one end of the spring one is fixed to the inner wall of the chamber two, and the other end of the spring one is fixed to the right-angled trapezoidal plate.

[0014] As a preferred solution of the portable anti-breakthrough warning fence described in the present invention, a right-angled trapezoidal groove is opened in the right-angled trapezoidal plate, a travel groove 2 is opened in the middle of the right-angled trapezoidal plate, and the travel groove 2 is located in the middle of the right-angled trapezoidal groove.

[0015] As a preferred solution of a portable anti-breakthrough alarm fence described in the present invention, wherein: a cylindrical rod one is slidably connected in the travel groove two, and a sphere is fixed on the top of the cylindrical rod one, and two storage grooves three are provided in the mounting plate, which are respectively connected to the corresponding chamber two, and the storage groove three is located above the chamber two, and the sphere is slidably fitted in the storage groove three, and when the sphere moves downward, it can squeeze the right-angled trapezoidal groove and drive the right-angled trapezoidal plate to move into the chamber two.

[0016] As a preferred solution of the portable anti-breakthrough alarm fence described in the present invention, there are two storage grooves four connected to the corresponding chamber two, and the storage groove four is located below the chamber two, the cylindrical rod one is slidably fitted in the storage groove four, the cylindrical rod two is fixed at the bottom of the cylindrical rod one, and the cylindrical rod two passes through the mounting plate and slides inside the mounting plate.

[0017] As a preferred solution of the portable anti-breakthrough alarm fence described in the present invention, a spring three is provided on the outer side of the cylindrical rod two, and one end of the spring three is against the inner wall of the storage groove four, and the other end of the spring three is against the cylindrical rod one, and a movable sleeve is fixed to one end of the two cylindrical rods two extending outside the mounting plate.

[0018] As a preferred solution of the portable anti-breakthrough alarm fence described in the present invention, a rectangular groove connected to the inner cavity is opened on the top of the bracket, and a tooth plate 1 meshing with tooth plate 2 is slidably connected in the rectangular groove, and screw rod 2 is rotatably connected to one side of the tooth plate 1, and screw rod 2 passes through the bracket and is threadedly connected to the bracket.

[0019] Beneficial effects of the present invention:

[0020] 1. When the infrared sensor detects that a non-experimental person is approaching, the controller activates the buzzer, and the warning light emits a flashing alarm to alert pedestrians to pay attention. When the vibration sensor detects that a non-experimental person breaks through the fence, the controller activates the buzzer and the warning light, so that the buzzer emits a voice alarm and the warning light emits a flashing alarm, reminding the test personnel to check the on-site situation in time and prevent the non-experimental person from breaking through the fence.

[0021] 2. The base is embedded in chamber one. When the base squeezes the right-angled trapezoidal plate, the right-angled trapezoidal plate moves into chamber two. When the positioning groove moves to the right-angled trapezoidal plate, the right-angled trapezoidal plate is driven to be embedded in the positioning groove under the rebound force of spring one, so that the base and the mounting plate are fixed. This fixing method is more convenient, and the movable sleeve is pulled downward to drive the ball to move downward. When the ball squeezes the right-angled trapezoidal groove, the right-angled trapezoidal plate is driven to move into chamber two. When the right-angled trapezoidal plate is moved out of the positioning groove, the base can be taken out from chamber one, thereby facilitating maintenance or replacement of the warning unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0023] Figure 1 The present invention is a structural schematic diagram of a portable anti-breakthrough alarm fence.

[0024] Figure 2 This is an enlarged view of the internal structure of the bracket provided by the present invention.

[0025] Figure 3 This is a structural schematic diagram of the warning unit provided by the present invention.

[0026] Figure 4 This is a schematic diagram of the disassembled structure of the auxiliary components provided by the present invention.

[0027] Figure 5 This is a schematic cross-sectional structure diagram of the auxiliary component provided by the present invention.

[0028] Figure 6 This is an enlarged view of the internal structure of the mounting plate provided by the present invention.

[0029] Figure 7 The present invention is a partial structural schematic diagram of a portable anti-breakthrough warning fence.

[0030] Figure 8 The present invention provides Figure 7 Schematic diagram of the structure from another perspective.

[0031] Fig. 9 The present invention is a partial structural schematic diagram of a portable anti-breakthrough warning fence.

[0032] Description of the drawings: 100, main unit; 101, column; 102, railing; 103, bracket; 104, storage slot 1; 105, screw 1; 106, positioning plate; 107, rectangular slot; 108, screw 2; 109, tooth plate 1; 200, warning unit; 201, inner cavity; 202, tooth plate 2; 203, mounting plate; 204, base; 205, U-shaped plate; 206, buzzer; 207, warning light; 208, auxiliary component; 2081, positioning slot; 2082, chamber 1; 2083, chamber 2 ; 2084, right-angle trapezoidal plate; 2085, spring one; 209, vibration sensor; 210, controller; 211, infrared sensor; 212, battery compartment; 213, battery; 214, storage slot two; 215, baffle; 216, travel slot one; 217, lever; 218, spring two; 219, right-angle trapezoidal slot; 220, travel slot two; 221, cylindrical rod one; 222, sphere; 223, storage slot three; 224, storage slot four; 225, cylindrical rod two; 226, spring three; 227, movable sleeve. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0037] Reference Figure 1-Figure 9 , as an embodiment of the present invention, a portable anti-breakthrough warning fence is provided, which includes: a main unit 100 and a warning unit 200;

[0038] The main unit 100 includes a plurality of columns 101, a plurality of railings 102 are fixed between adjacent columns 101, a bracket 103 is provided on the top of the column 101, a storage groove 104 is provided at the bottom of the bracket 103, and the column 101 can be embedded in the storage groove 104, a positioning plate 106 is provided in the storage groove 104, the positioning plate 106 can be pressed against the column 101, and a screw 105 is rotatably connected to one side of the positioning plate 106, and the screw 105 passes through the bracket 103 and is threadedly connected to the bracket 103;

[0039] The warning unit 200 includes an inner cavity 201 opened at the top of the bracket 103, a tooth plate 202 is slidably connected in the inner cavity 201, a mounting plate 203 is fixed on the top of the tooth plate 202, a base 204 is arranged above the mounting plate 203, a U-shaped plate 205 is fixed on the top of the base 204, a buzzer 206 and a warning light 207 are installed on the top of the U-shaped plate 205, an auxiliary component 208 for quickly installing or removing the base 204 is arranged in the mounting plate 203, and a vibration sensor is installed on the top of the base 204 The U-shaped plate 205 includes a device 209, a controller 210 and an infrared sensor 211, a battery compartment 212 is provided in the U-shaped plate 205, a battery 213 is arranged in the battery compartment 212, the buzzer 206, the warning light 207, the vibration sensor 209, the controller 210, and the infrared sensor 211 are all electrically connected to the battery 213, the output ends of the vibration sensor 209 and the infrared sensor 211 are all connected to the input end of the controller 210, and the input ends of the warning light 207 and the buzzer 206 are all connected to the output end of the controller 210.

[0040] When in use, the bracket 103 is sleeved on one of the columns 101 so that the column 101 is embedded in the storage groove 104, and then the screw 105 is rotated to make the positioning plate 106 and the column 101 abut against each other, so that the bracket 103 is fixed on the column 101. When the infrared sensor 211 detects that a non-experimental person is approaching, the warning light 207 is activated through the controller 210, so that the warning light 207 emits a flashing alarm to remind pedestrians to pay attention. When the vibration sensor 209 detects that a non-experimental person breaks through the fence, the buzzer 206 and the warning light 207 are activated through the controller 210, so that the buzzer 206 emits a voice alarm and the warning light 207 emits a flashing alarm, reminding the test personnel to check the situation on site in time and prevent the non-experimental person from breaking through the fence.

[0041] In addition, a second storage groove 214 is provided in the U-shaped plate 205, and the second storage groove 214 is connected to the battery compartment 212. A baffle 215 is slidably connected in the second storage groove 214 for blocking the battery 213 in the battery compartment 212. A plurality of second springs 218 are provided in the second storage groove 214, and the two ends of the second spring 218 are respectively fixed to the inner wall of the second storage groove 214 and one side of the baffle 215. A travel groove 1 216 connected to the second storage groove 214 is provided in the U-shaped plate 205, and a lever 217 is fixed on one side of the baffle 215, and the lever 217 is slidably fitted in the travel groove 1 216.

[0042] It should be noted that the buzzer 206, warning light 207, vibration sensor 209, controller 210, infrared sensor 211, and battery 213 are all conventional devices purchased on the market and known to those skilled in the art. The models can be selected or customized according to actual needs. In this patent, we only use them and have not improved their structure and function. For those skilled in the art, their setting method, installation method, and electrical connection method only need to be debugged according to the requirements of the instruction manual, and will not be described in detail here.

[0043] In addition, the auxiliary component 208 is provided with positioning grooves 2081 on both sides of the base 204, a chamber 1 2082 for accommodating the base 204 is provided on the top of the mounting plate 203, two chambers 2083 connected to the chamber 1 2082 are provided in the mounting plate 203, a right-angled trapezoidal plate 2084 is slidably connected in the chamber 2083, a spring 1 2085 is provided in the chamber 2083, and one end of the spring 1 2085 is fixed to the inner wall of the chamber 2083, and the other end of the spring 1 2085 is fixed to the right-angled trapezoidal plate 2084, a right-angled trapezoidal groove 219 is provided in the right-angled trapezoidal plate 2084, a travel groove 220 is provided in the middle of the right-angled trapezoidal plate 2084, and the travel groove 220 is located in the middle of the right-angled trapezoidal groove 219, and a cylindrical rod 1 220 is slidably connected in the travel groove 220 1, and a sphere 222 is fixed on the top of the cylindrical rod 1 221, two receiving grooves 3 223 are respectively connected to the corresponding chamber 2 2083, and the receiving grooves 3 223 are located above the chamber 2083, the sphere 222 slides in the receiving groove 3 223, and when the sphere 222 moves downward, it can squeeze the right-angle trapezoidal groove 219 and drive the right-angle trapezoidal plate 2084 to move into the chamber 2 2083, the mounting plate 203 has two receiving grooves 4 224 connected to the corresponding chamber 2 2083, and the receiving grooves 4 224 are located below the chamber 2083, the cylindrical rod 1 221 slides in the receiving groove 4 224, a cylindrical rod 225 is fixed at the bottom of the cylindrical rod 1 221, and the cylindrical rod 225 penetrates the mounting plate 203 and slides in the mounting plate 203.

[0044] Furthermore, a spring three 226 is sleeved on the outer side of the cylindrical rod two 225, and one end of the spring three 226 is against the inner wall of the storage groove four 224, and the other end of the spring three 226 is against the cylindrical rod one 221. The two cylindrical rods two 225 extend to one end outside the mounting plate 203 and are jointly fixed with a movable sleeve 227. A rectangular groove 107 connected to the inner cavity 201 is opened on the top of the bracket 103, and a tooth plate one 109 meshing with the tooth plate two 202 is slidably connected in the rectangular groove 107. A screw rod two 108 is rotatably connected to one side of the tooth plate one 109, and the screw rod two 108 passes through the bracket 103 and is threadedly connected to the bracket 103.

[0045] When in use, when the buzzer 206 and the warning light 207 are installed on the column 101, the base 204 is embedded in the chamber 1 2082. When the base 204 squeezes the hypotenuse of the right-angled trapezoidal plate 2084, the right-angled trapezoidal plate 2084 moves into the chamber 2 2083, so that the spring 1 2085 is compressed. When the positioning groove 2081 moves to the right-angled trapezoidal plate 2084, the right-angled trapezoidal plate 2084 is driven to be embedded in the positioning groove 2081 under the rebound force of the spring 1 2085, so that the base 204 and the mounting plate 203 are fixed. This fixing method is more convenient. When the right-angled trapezoidal plate 2084 moves in the chamber 2 2083, the cylindrical rod 1 221 is stationary. At this time, the right-angled trapezoidal plate 2084 moves. The cylindrical rod 1 221 is in the travel groove 220, that is, the cylindrical rod 1 221 does not block the movement of the right-angled trapezoidal plate 2084. When the base 204, the buzzer 206, and the warning light 207 need to be removed from the mounting plate 203, the movable sleeve 227 is pulled downward to drive the cylindrical rod 225, the cylindrical rod 1 221, and the sphere 222 to move downward. When the sphere 222 squeezes the oblique groove of the right-angled trapezoidal groove 219, it drives the right-angled trapezoidal plate 2084 to move into the chamber 2 2083. At this time, the downward movement of the cylindrical rod 1 221 will compress the spring 3 226. When the right-angled trapezoidal plate 2084 is moved out of the positioning groove 2081, the base 204 can be taken out from the chamber 1 2082, thereby facilitating the maintenance or replacement of the warning unit 200.

[0046] It should be noted that, when the spring three 226 is in the normal state, the sphere 222 is located in the storage groove three 223, and the bottom of the cylindrical rod one 221 is located in the storage groove four 224. The diameter of the cylindrical rod one 221 is larger than the diameter of the cylindrical rod two 225, and the diameter of the spring three 226 is smaller than the diameter of the cylindrical rod one 221. When the spring one 2085 is in the normal state, the right-angled trapezoidal plate 2084 can be embedded in the positioning groove 2081. When the spring two 218 is in the normal state, the baffle 215 can block the battery 213 in the battery compartment 212.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A portable anti-breakthrough warning fence, characterized in that: include: A main body unit (100) comprises a plurality of columns (101), a plurality of railings (102) are fixed between adjacent columns (101), a bracket (103) is arranged on the top of the column (101), a receiving groove (104) is provided on the bottom of the bracket (103), and the column (101) can be embedded in the receiving groove (104), a positioning plate (106) is arranged in the receiving groove (104), the positioning plate (106) can be pressed against the column (101), a screw rod (105) is rotatably connected to one side of the positioning plate (106), and the screw rod (105) passes through the bracket (103) and is threadedly connected to the bracket (103); The warning unit (200) comprises an inner cavity (201) opened at the top of a bracket (103), a tooth plate (202) being slidably connected in the inner cavity (201), a mounting plate (203) being fixed on the top of the tooth plate (202), a base (204) being arranged above the mounting plate (203), a U-shaped plate (205) being fixed on the top of the base (204), a buzzer (206) and a warning light (207) being installed on the top of the U-shaped plate (205), and an auxiliary component (208) for quickly installing or removing the base (204) being arranged in the mounting plate (203).

2. A portable anti-breakthrough warning fence according to claim 1, characterized in that: A vibration sensor (209), a controller (210) and an infrared sensor (211) are installed on the top of the base (204); a battery compartment (212) is provided in the U-shaped plate (205); a battery (213) is arranged in the battery compartment (212); the buzzer (206), the warning light (207), the vibration sensor (209), the controller (210) and the infrared sensor (211) are all electrically connected to the battery (213); the output ends of the vibration sensor (209) and the infrared sensor (211) are all connected to the input end of the controller (210); and the input ends of the warning light (207) and the buzzer (206) are all connected to the output end of the controller (210).

3. A portable anti-breakthrough warning fence according to claim 2, characterized in that: The U-shaped plate (205) is provided with a second storage groove (214), and the second storage groove (214) is connected to the battery compartment (212). A baffle (215) for blocking the battery (213) in the battery compartment (212) is slidably connected in the second storage groove (214). A plurality of second springs (218) are provided in the second storage groove (214), and two ends of the second springs (218) are respectively fixed to the inner wall of the second storage groove (214) and one side of the baffle (215).

4. A portable anti-breakthrough warning fence according to claim 3, characterized in that: A travel groove (216) communicating with the second storage groove (214) is provided in the U-shaped plate (205); a lever (217) is fixed to one side of the baffle plate (215), and the lever (217) is slidably fitted in the travel groove (216).

5. The portable anti-breakthrough warning fence according to claim 1 is characterized by: The auxiliary component (208) is provided with positioning grooves (2081) on both sides of the base (204); a chamber 1 (2082) for accommodating the base (204) is provided on the top of the mounting plate (203); two chambers 2 (2083) connected to the chamber 1 (2082) are provided in the mounting plate (203); a right-angled trapezoidal plate (2084) is slidably connected in the chamber 2 (2083); a spring 1 (2085) is provided in the chamber 2 (2083); one end of the spring 1 (2085) is fixed to the inner wall of the chamber 2 (2083); and the other end of the spring 1 (2085) is fixed to the right-angled trapezoidal plate (2084).

6. A portable anti-breakthrough warning fence according to claim 5, characterized in that: A right-angled trapezoidal groove (219) is provided in the right-angled trapezoidal plate (2084), a second travel groove (220) is provided in the middle of the right-angled trapezoidal plate (2084), and the second travel groove (220) is located in the middle of the right-angled trapezoidal groove (219).

7. A portable anti-breakthrough warning fence according to claim 6, characterized in that: A cylindrical rod 1 (221) is slidably connected in the travel groove 2 (220), and a sphere (222) is fixed on the top of the cylindrical rod 1 (221). Two receiving grooves 3 (223) are provided in the mounting plate (203) and are respectively connected to the corresponding chamber 2 (2083), and the receiving grooves 3 (223) are located above the chamber 2 (2083). The sphere (222) is slidably matched in the receiving groove 3 (223). When the sphere (222) moves downward, it can squeeze the right-angled trapezoidal groove (219) and drive the right-angled trapezoidal plate (2084) to move into the chamber 2 (2083).

8. A portable anti-breakthrough warning fence according to claim 7, characterized in that: The mounting plate (203) is provided with two receiving grooves four (224) connected with the corresponding chamber two (2083), and the receiving groove four (224) is located below the chamber two (2083), the cylindrical rod one (221) is slidably fitted in the receiving groove four (224), the cylindrical rod two (225) is fixed at the bottom of the cylindrical rod one (221), and the cylindrical rod two (225) passes through the mounting plate (203) and slides in the mounting plate (203).

9. A portable anti-breakthrough warning fence according to claim 8, characterized in that: A spring three (226) is sleeved on the outer side of the cylindrical rod two (225), and one end of the spring three (226) abuts against the inner wall of the storage groove four (224), and the other end of the spring three (226) abuts against the cylindrical rod one (221), and one end of the two cylindrical rods two (225) extending outside the mounting plate (203) is commonly fixed with a movable sleeve (227).

10. The portable anti-breakthrough warning fence according to claim 1, characterized in that: The top of the bracket (103) is provided with a rectangular groove (107) which is connected to the inner cavity (201), and a tooth plate (109) which meshes with the tooth plate (202) is slidably connected in the rectangular groove (107), and a screw rod (108) is rotatably connected to one side of the tooth plate (109), and the screw rod (108) passes through the bracket (103) and is threadedly connected to the bracket (103).

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