A retractable fence with automatically stowable legs

Abstract

The application belongs to the technical field of telescopic fences, and particularly relates to a telescopic fence with automatic folding supporting legs, which comprises two groups of supporting frames, a telescopic fence arranged between the two groups of supporting frames, a movable rod movably arranged in the supporting frame, a screw nut fixedly connected with the movable rod, a first screw rod screwed with the screw nut, the first screw rod being rotatably arranged on the supporting frame, two groups of supporting leg mechanisms symmetrically arranged at the lower end of the movable rod, and the supporting leg mechanism comprising a gear, the gear being engaged with the movable rod, the movable rod being used for driving the gear to rotate, a hinge shaft rotatably connected with the middle part of the gear, a support fixedly connected with the gear, a screw shaft rotatably arranged in the support, and a roller fixedly connected with one end of the screw shaft. During the folding process of the whole device, the supporting frame and the supporting leg mechanism are set to move more smoothly through the roller, friction between the supporting leg mechanism and the ground is avoided, and the service life of the supporting leg mechanism is improved. Furthermore, the rubber block is used for unlocking or fixing the screw shaft by controlling the upward or downward rotation of the supporting leg mechanism.

Description

Technical Field

[0001] This invention belongs to the field of retractable fence technology, specifically a retractable fence with automatically retractable legs. Background Technology

[0002] Telescopic fences are essential safety tools for power industry maintenance work. Existing telescopic fence legs can automatically extend and retract, reducing the space occupied by the telescopic fence and making it more convenient to move and carry.

[0003] Patent CN113374337B discloses a retractable fence with automatically retractable legs. It features automatic deployment and retraction of the fence legs and the ability to stably connect multiple fence sections in complex terrain. The retractable fence with automatically retractable legs consists of an automatic leg mechanism, a connecting mechanism, a support frame, and a telescopic fence. The automatic deployment and retraction of the legs can be achieved by deploying and retracting the fence. The stable connection of the fence is achieved through the connecting mechanism.

[0004] In the above solution, after the outriggers are extended, they will contact the ground. During the retraction of the telescopic fence, the two sets of support frames will move towards each other, causing the outriggers on the two sets of automatic outrigger mechanisms to slide towards each other along the ground. Since the outriggers are the support points of the entire device, the friction between the outriggers and the ground is very high, which not only hinders the retraction of the telescopic fence but also increases the wear of the outriggers and reduces their service life. Therefore, the present invention provides a telescopic fence with automatically retractable outriggers. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a retractable fence with automatically retractable legs, comprising two sets of support frames, a retractable fence between the two sets of support frames, a movable rod movably installed inside the support frame, the movable rod being fixedly connected to a screw sleeve, the screw sleeve being screwed to a first screw rod, the first screw rod being rotatably installed on the support frame, two sets of support leg mechanisms symmetrically arranged at the lower end of the movable rod, the support leg mechanism comprising: a gear, the gear meshing with the movable rod, the movable rod being used to drive the gear to rotate, a hinge shaft rotatably connected to the middle of the gear, a bracket fixedly connected to the gear, a rotating shaft rotatably installed in the bracket, a roller fixedly connected to one end of the rotating shaft, two sets of storage openings symmetrically opened at the lower end of the support frame, the hinge shaft being fixedly installed in the storage opening, a pressure block being fixedly installed in the storage opening, and a rubber block for fixing the rotating shaft being provided at the end of the pressure block;

[0007] During the retraction of the entire device, the roller setting makes the support frame and outrigger mechanism move more smoothly, avoids friction between the outrigger mechanism and the ground, and improves the service life of the outrigger mechanism. Secondly, by controlling the outrigger mechanism to rotate up or down, the rubber block can be unlocked or fixed to the rotating shaft.

[0008] Preferably, the bracket includes: an inner tube, a gear fixedly connected to one end of the inner tube, a hexagonal column rotatably installed inside the inner tube, an outer tube movably fitted onto the inner tube, a guide groove opened on the outer tube, a support plate fixedly installed in the guide groove, a clamping plate hinged to the support plate, a U-shaped spring sheet set below the clamping plate, the U-shaped spring sheet fixedly welded in the guide groove, a spring set at the other end of the inner tube, a hexagonal hole opened at the other end of the screw-connecting shaft, the hexagonal column movably inserted into the hexagonal hole, the screw-connecting shaft movably inserted into the inner tube, the end of the outer tube rotatably connected to the screw-connecting shaft, one end of the spring fixedly connected to the other end of the inner tube, the other end of the spring fixedly connected to the inner wall of the outer tube, and a limiting block for limiting the clamping plate fixedly installed on the outer ring of the inner tube, the limiting block being located in the guide groove and slidably connected to the guide groove;

[0009] Because the length of the entire outrigger mechanism is extended, the ground surface supporting the entire device is enlarged, making the device more stable when placed on a steeper slope and reducing the risk of the device tipping over.

[0010] Preferably, the card plate has a rectangular groove, and four sets of rollers are rotatably installed at equal intervals in the rectangular groove;

[0011] When the outrigger mechanism enters the support frame, the other end of the clamping plate will approach the movable rod, causing one end of the clamping plate to disengage from the other end of the limiting block. Under the action of the spring rebound force, the outer tube, together with the swivel shaft and roller, moves back, thereby restoring the outrigger mechanism to its previous length. This not only achieves automatic retraction of the outrigger mechanism, but also makes it easier for workers to use the device on a relatively flat surface next time.

[0012] Preferably, the movable rod includes: a movable column, a movable column fixedly connected to a threaded sleeve, a second screw threaded to the movable column, a rack fixedly connected to the lower end of the movable column, a clearance groove formed on the rack, a slider movably installed in the clearance groove, the lower end of the second screw rotatably connected to the slider, the movable column movably connected to the inner cavity of the support frame, the rack meshing with a roller, the slider being used to push the clamping plate, and the clearance groove being used to allow the clamping plate to pass.

[0013] The adjustable lever allows staff to control the length of the outriggers according to actual conditions, thus facilitating the use of the device.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. During the process of retracting the entire device, the roller setting makes the support frame and outrigger mechanism move more smoothly, avoids friction between the outrigger mechanism and the ground, and improves the service life of the outrigger mechanism. Secondly, by controlling the outrigger mechanism to rotate up or down, the rubber block can be unlocked or fixed to the rotating shaft.

[0016] 2. When the device is placed on a sloped surface, rotating the first screw causes the screw sleeve to move the movable rod upwards along the inner cavity of the support frame. Simultaneously, the movable rod, through gears, causes the entire outrigger mechanism to rotate downwards until the outrigger mechanism disengages from the support frame. At this point, pulling the roller upwards causes the rotating shaft, along with the outer tube, to move upwards. During this process, the hexagonal column slides along the hexagonal hole on the rotating shaft, the outer tube slides along the inner tube, and the outer tube stretches the spring. Simultaneously, the outer tube moves the support plate, along with the clamping plate, towards the limiting block. When the device moves, one end of the clamping plate will be pushed by one end of the limiting block, causing the clamping plate to rotate upwards and compress the U-shaped spring. This continues until one end of the clamping plate is off-center from the limiting block, releasing the roller. Under the rebound force of the U-shaped spring and the spring, one end of the clamping plate will press against the other end of the limiting block, thus preventing the outer tube, along with the swivel shaft and roller, from moving back. Because the length of the entire support leg mechanism is extended, the support surface of the ground for the entire device becomes larger, making the device more stable when placed on a steeper slope and reducing the risk of the device tipping over.

[0017] 3. If the device is to be used on a steep slope again, the second screw is rotated. As the second screw rotates, it drives the slider to move upward along the clearance groove until the slider can no longer move. When the outrigger mechanism retracts into the support frame, the other end of the clamping plate will directly enter the clearance groove, and at this time the outrigger mechanism will be fully inside the support frame. Because the clearance groove avoids the clamping plate, the clamping plate is not obstructed, thus preventing the outrigger mechanism from shortening. If the device is to be used on flat ground again, the second screw does not need to be rotated. When the outrigger mechanism retracts into the support frame, the other end of the clamping plate will be directly squeezed by the slider, causing the outrigger mechanism to automatically retract. Therefore, the movable rod allows the operator to control the length of the outrigger mechanism according to the actual situation, thus facilitating the operator's use of the device. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the support frame of the present invention.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 This is a cross-sectional view of the gear, the bracket, the swivel shaft, and the roller assembly of the present invention.

[0023] Figure 5 This is a cross-sectional view of the support frame, movable rod, and leg mechanism assembly of the present invention.

[0024] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0025] Figure 7 This is a schematic diagram of the combination of the screw sleeve and the movable rod in cross-section according to the present invention.

[0026] In the diagram: 1. Support frame; 101. Storage opening; 102. Pressure block; 103. Rubber block; 2. Telescopic railing; 3. Movable rod; 4. Screw sleeve; 5. First screw; 6. Leg mechanism; 601. Gear; 602. Hinge shaft; 603. Bracket; 604. Screw shaft; 6041. Hexagonal hole; 605. Roller; 6031. Inner tube; 311. Limiting block; 6032. Hexagonal column; 6033. Outer tube; 6034. Guide groove; 6035. Support plate; 6036. Clamping plate; 361. Rectangular groove; 362. Roller; 6037. U-shaped spring; 6038. Spring; 301. Movable column; 302. Second screw; 303. Rack; 304. Clearance groove; 305. Slider. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] Example 1

[0029] like Figures 1 to 3 As shown in the figure, an embodiment of the present invention provides a retractable fence with automatically retractable outriggers, comprising two sets of support frames 1, with a retractable fence 2 disposed between the two sets of support frames 1. A movable rod 3 is movably installed inside the support frame 1, and the movable rod 3 is fixedly connected to a screw sleeve 4. The screw sleeve 4 is screwed to a first screw rod 5, which is rotatably mounted on the support frame 1. Two sets of outrigger mechanisms 6 are symmetrically arranged at the lower end of the movable rod 3. The outrigger mechanism 6 includes a gear 601, which meshes with the movable rod 3, and the movable rod 3 is used to drive the gear 601 to rotate. The hinge shaft 602 in the middle of the rotating connecting gear 601 is rotated, the bracket 603 that is fixedly connected to the gear 601 is rotated, the swivel shaft 604 installed in the bracket 603 is rotated, and the roller 605 at one end of the swivel shaft 604 is fixedly connected. The lower end of the support frame 1 is symmetrically provided with two sets of storage ports 101. The hinge shaft 602 is fixedly installed in the storage port 101. The pressure block 102 is fixedly installed in the storage port 101. The end of the pressure block 102 is provided with a rubber block 103 for fixing the swivel shaft 604.

[0030] Specifically, the support frame 1 and the telescopic fence 2 adopt the corresponding mechanism in the telescopic fence with automatically retractable legs disclosed in CN113374337B. In the initial state, the roller 605 is in contact with the ground, and the rubber block 103 presses against the swivel shaft 604, preventing the swivel shaft 604 from rotating. When the telescopic fence needs to be retracted, the first screws 5 on the two sets of support frames 1 are rotated respectively. As the first screws 5 rotate, the screw sleeve 4 drives the movable rod 3 to move downward along the inner cavity of the support frame 1. As the movable rod 3 moves, the movable rod 3 will drive the two sets of gears 601 to rotate in opposite directions. At the same time, the gears 601 drive the bracket 603, the swivel shaft 604, and the roller 605 to rotate upward until the rubber block 103 disengages from the swivel shaft 604. At this time, the support frame 1 moves downward a certain distance, but the lower end of the support frame 1 does not contact the ground. Due to the counter-rotation of the rubber block 103, the support frame 1 moves downward a certain distance, but the lower end of the support frame 1 does not contact the ground. The rotation of the connecting shaft 604 does not cause any obstruction. When the workers pull the two sets of support frames 1 towards each other, the rollers 605 can roll along the ground. At the same time, as the two sets of support frames 1 approach each other, they compress the telescopic fence 2 towards each other, shortening the telescopic fence 2. After the telescopic fence is shortened to the appropriate position, the first screw 5 is rotated to make the bracket 603, the connecting shaft 604, and the rollers 605 rotate upwards until the entire support leg mechanism 6 is retracted into the support frame 1, thereby realizing the retraction of the entire device and the support leg mechanism 6. Compared with the prior art, during the process of retracting the entire device, the setting of the rollers 605 makes the movement of the support frame 1 and the support leg mechanism 6 smoother, avoiding friction between the support leg mechanism 6 and the ground, and improving the service life of the support leg mechanism 6. Secondly, by controlling the upward or downward rotation of the support leg mechanism 6, the rubber block 103 can be unlocked or fixed to the connecting shaft 604.

[0031] Example 2

[0032] like Figures 3 to 6As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the bracket 603 includes: an inner tube 6031, a gear 601 fixedly connected to one end of the inner tube 6031, a hexagonal column 6032 rotatably installed inside the inner tube 6031, an outer tube 6033 movably fitted onto the inner tube 6031, a guide groove 6034 formed on the outer tube 6033, a support plate 6035 fixedly installed in the guide groove 6034, a clamping plate 6036 hinged to the support plate 6035, and a U-shaped spring piece 6037 disposed below the clamping plate 6036. The U-shaped spring piece 6037 is fixedly welded into the guide groove 6034 and disposed on the inner tube. The spring 6038 at the other end of 6031 and the hexagonal hole 6041 at the other end of the screw-connecting shaft 604 are connected to the hexagonal hole 6041. The inner tube 6031 is movably connected to the screw-connecting shaft 604. The end of the outer tube 6033 is rotatably connected to the screw-connecting shaft 604. One end of the spring 6038 is fixedly connected to the other end of the inner tube 6031, and the other end of the spring 6038 is fixedly connected to the inner wall of the outer tube 6033. A limiting block 311 for limiting the card plate 6036 is fixedly installed on the outer ring of the inner tube 6031. The limiting block 311 is located in the guide groove 6034 and is slidably connected to the guide groove 6034.

[0033] Specifically, the U-shaped spring 6037 is made of stainless steel with good elasticity and toughness. If the length of the support leg mechanism 6 is fixed, when the device is placed on a sloped surface, the entire device will be tilted. Since the length of the support leg mechanism 6 is fixed, the ground's support surface for the entire device is limited, causing instability and increasing the risk of tipping over. Therefore, when the device is placed on a sloped surface, rotating the first screw 5 causes the screw sleeve 4 to move the movable rod 3 upwards along the inner cavity of the support frame 1. Simultaneously, the movable rod 3, through the gear 601, causes the entire support leg mechanism 6 to rotate downwards until the support leg mechanism 6 disengages from the support frame 1. At this point, the roller 605 is pulled upwards, causing the rotating shaft 604 and outer tube 6033 to move upwards. During this process, the hexagonal column 6032 slides along the hexagonal hole 6041 on the rotating shaft 604, the outer tube 6033 slides along the inner tube 6031, and the outer tube 6033 stretches the spring 603. 8. Simultaneously, the outer tube 6033 drives the support plate 6035 and the clamping plate 6036 to move towards the limiting block 311. One end of the clamping plate 6036 will be pushed by one end of the limiting block 311, causing the clamping plate 6036 to rotate upwards. The clamping plate 6036 compresses the U-shaped spring 6037 until one end of the clamping plate 6036 is offset from the limiting block 311. The roller 605 is released, and under the rebound force of the U-shaped spring 6037 and the spring 6038, one end of the clamping plate 6036 abuts against the limiting block. 311 At the other end, the outer tube 6033, together with the swivel shaft 604 and the roller 605, cannot move back. Then, the first screw 5 continues to rotate until the roller 605 contacts the ground. At the same time, the rubber block 103 squeezes the hexagonal column 6032, preventing the roller 605 from rolling along the ground. Since the length of the entire support leg mechanism 6 is extended, the ground supports the entire device, making the device more stable on a steeper slope and reducing the risk of the device tipping over.

[0034] Furthermore, a rectangular groove 361 is provided on the card plate 6036, and four sets of rollers 362 are rotatably installed at equal intervals in the rectangular groove 361.

[0035] Specifically, the length of the aforementioned outrigger mechanism 6 increases. When the extended outrigger mechanism 6 is retracted into the support frame 1, as the outrigger mechanism 6 enters the support frame 1, the other end of the clamping plate 6036 will approach the movable rod 3. The roller 362 on the other end of the clamping plate 6036 will first contact the movable rod 3, causing the roller 362 to be pushed by the movable rod 3, causing the clamping plate 6036 to rotate. The rotating clamping plate 6036 compresses the U-shaped spring 6037, and causes one end of the clamping plate 6036 to disengage from the other end of the limiting block 311. At this time, under the rebound force of the U-shaped spring 6037, the outer tube... 6033, together with the rotating shaft 604 and roller 605, moves back, thereby restoring the outrigger mechanism 6 to its previous length. This not only achieves automatic retraction of the outrigger mechanism 6, but also makes it easier for workers to use the device on relatively flat ground next time. Furthermore, if the device is to be used on a sloped surface, when the outrigger mechanism 6 enters the support frame 1, the other end of the locking plate 6036 can be brought close to the movable rod 3. The length of the outrigger mechanism 6 will not be shortened, so that workers do not need to adjust the length of the outrigger mechanism 6 when using the device next time, making it more convenient for workers to use the device.

[0036] like Figure 6 and Figure 7 As shown, the movable rod 3 includes: a movable column 301, a screw sleeve 4 fixedly connected to the movable column 301, a second screw 302 screwed to the movable column 301, a rack 303 fixedly connected to the lower end of the movable column 301, a clearance groove 304 opened on the rack 303, a slider 305 movably installed in the clearance groove 304, the lower end of the second screw 302 rotatably connected to the slider 305, the movable column 301 movably connected to the inner cavity of the support frame 1, the rack 303 meshing with the roller 605, the slider 305 used to push the clamping plate 6036, and the clearance groove 304 used to allow the clamping plate 6036 to pass.

[0037] Specifically, the length of the outrigger mechanism 6 is controlled by whether the other end of the control plate 6036 presses against or does not press against the movable rod 3. However, during adjustment, because the outrigger mechanism 6 enters the support frame 1, the operator's view is obstructed by the support frame 1, making it impossible for the operator to accurately control the distance between the control plate 6036 and the movable rod 3. Therefore, before the outrigger mechanism 6 retracts into the support frame 1, if the device is to be used on a relatively steep slope again, the second screw 302 is rotated. As the second screw 302 rotates, it drives the slider 305 to move upward along the clearance groove 304 until the slider 305 can no longer move. When the outrigger mechanism 6 retracts into the support frame 1... When the device is in place, the other end of the clamping plate 6036 will directly enter the clearance groove 304, and at this time the outrigger mechanism 6 will be fully inserted into the support frame 1. Because the clearance groove 304 avoids the clamping plate 6036, the clamping plate 6036 is not blocked, so the outrigger mechanism 6 cannot be shortened. If the device is used on flat ground next time, there is no need to rotate the second screw 302. When the outrigger mechanism 6 is retracted into the support frame 1, the other end of the clamping plate 6036 will be directly squeezed by the slider 305, so that the outrigger mechanism 6 will automatically retract. Therefore, the setting of the movable rod 3 allows the operator to control the length of the outrigger mechanism 6 according to the actual situation, which facilitates the operator's use of the device.

[0038] Working principle: Rotate the first screw 5 on each of the two sets of support frames 1. As the first screw 5 rotates, the screw sleeve 4 drives the movable rod 3 to move downward along the inner cavity of the support frame 1. As the movable rod 3 moves, it drives the two sets of gears 601 to rotate in opposite directions. At the same time, the gears 601 drive the bracket 603, the swivel shaft 604, and the roller 605 to rotate upward until the rubber block 103 disengages from the swivel shaft 604. At this point, the support frame 1 moves downward a certain distance, but the lower end of the support frame 1 does not touch the ground because of the rubber block. The rotation of the swivel shaft 604 by 103 does not cause any obstruction. When the workers pull the two sets of support frames 1 towards each other, the rollers 605 can roll along the ground. At the same time, as the two sets of support frames 1 approach each other, the two sets of support frames 1 compress the telescopic fence 2 towards each other, causing the telescopic fence 2 to shorten. After the telescopic fence is shortened to the appropriate position, the first screw 5 is rotated to make the bracket 603, swivel shaft 604, and rollers 605 rotate upward until the entire leg mechanism 6 is retracted into the support frame 1, thereby realizing the retraction of the entire device and the leg mechanism 6.

[0039] When the device is placed on a sloped surface, rotating the first screw 5 causes the screw sleeve 4 to move the movable rod 3 upward along the inner cavity of the support frame 1. Simultaneously, the movable rod 3, through the gear 601, causes the entire support leg mechanism 6 to rotate downward until the support leg mechanism 6 disengages from the support frame 1. At this point, the roller 605 is pulled upward, causing the rotating shaft 604 and outer tube 6033 to move upward. During this process, the hexagonal column 6032 slides along the hexagonal hole 6041 on the rotating shaft 604, and the outer tube 6033 slides along the inner tube 6031. The outer tube 6033 also stretches the spring 6038, simultaneously causing the support plate 6035 and the clamping plate 6036 to move towards the limiting block 311. The end will be pushed by one end of the limiting block 311, causing the clamping plate 6036 to rotate upward, and the clamping plate 6036 to compress the U-shaped spring 6037 until one end of the clamping plate 6036 is offset from the limiting block 311, releasing the roller 605. Under the rebound force of the U-shaped spring 6037 and the spring 6038, one end of the clamping plate 6036 will abut against the other end of the limiting block 311, so that the outer tube 6033, together with the swivel shaft 604 and the roller 605, cannot move back. Then the first screw 5 continues to rotate until the roller 605 contacts the ground. At the same time, the rubber block 103 squeezes the hexagonal column 6032, so that the roller 605 cannot roll along the ground. Since the length of the entire support leg mechanism 6 is stretched, the support surface of the ground on the entire device becomes larger.

[0040] Before the outrigger mechanism 6 retracts into the support frame 1, if the device is to be used again on a sloped surface, the second screw 302 is rotated. As the second screw 302 rotates, it drives the slider 305 to move upward along the clearance groove 304 until the slider 305 can no longer move. When the outrigger mechanism 6 retracts into the support frame 1, the other end of the clamping plate 6036 will directly enter the clearance groove 304, and at this time the outrigger mechanism 6 is completely inside the support frame 1. Because the clearance groove 304 avoids the clamping plate 6036, the clamping plate 6036 is not obstructed, thus preventing the outrigger mechanism 6 from shortening. If the device is to be used again on flat ground, the second screw 302 does not need to be rotated. When the outrigger mechanism 6 retracts into the support frame 1, the other end of the clamping plate 6036 will be directly squeezed by the slider 305, thus causing the outrigger mechanism 6 to automatically retract.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retractable fence with automatically retractable outriggers, comprising two sets of support frames (1), characterized in that: A telescopic railing (2) is provided between the two sets of support frames (1). A movable rod (3) is movably installed inside the support frame (1). The movable rod (3) is fixedly connected to a screw sleeve (4). The screw sleeve (4) is screwed to a first screw rod (5). The first screw rod (5) is rotatably installed on the support frame (1). Two sets of support leg mechanisms (6) are symmetrically arranged at the lower end of the movable rod (3). The outrigger mechanism (6) includes: Gear (601), which meshes with the movable rod (3), the movable rod (3) being used to drive the gear (601) to rotate; Rotate the hinge shaft (602) that connects the middle part of the gear (601); A bracket (603) for fixing the gear (601); Rotate the swivel shaft (604) installed in the bracket (603); A roller (605) is fixedly connected to one end of the rotating shaft (604); The support frame (1) has two sets of symmetrical storage openings (101) at its lower end. The hinge shaft (602) is fixedly installed in the storage opening (101). A pressure block (102) is fixedly installed in the storage opening (101). A rubber block (103) for fixing the hinge shaft (604) is provided at the end of the pressure block (102).

2. The retractable fence with automatically retractable outriggers according to claim 1, characterized in that: The support (603) includes: Inner tube (6031), one end of which is fixedly connected to the gear (601); Rotate the hexagonal column (6032) installed inside the inner tube (6031); The outer tube (6033) is mounted on the inner tube (6031); A guide groove (6034) is formed on the outer tube (6033); A support plate (6035) is fixedly installed in the guide groove (6034); A latching plate (6036) that hinges the support plate (6035); A U-shaped spring (6037) is disposed below the card plate (6036), and the U-shaped spring (6037) is fixedly welded in the guide groove (6034); A spring (6038) is provided at the other end of the inner tube (6031).

3. The retractable fence with automatically retractable outriggers according to claim 2, characterized in that: The other end of the rotating shaft (604) is provided with a hexagonal hole (6041), and the hexagonal column (6032) is movably inserted into the hexagonal hole (6041).

4. A retractable fence with automatically retractable outriggers according to claim 3, characterized in that: The screw shaft (604) is movably inserted into the inner tube (6031), and the end of the outer tube (6033) is rotatably connected to the screw shaft (604).

5. A retractable fence with automatically retractable outriggers according to claim 4, characterized in that: One end of the spring (6038) is fixedly connected to the other end of the inner tube (6031), and the other end of the spring (6038) is fixedly connected to the inner wall of the outer tube (6033).

6. A retractable fence with automatically retractable outriggers according to claim 5, characterized in that: A limiting block (311) for limiting the card plate (6036) is fixedly installed on the outer ring of the inner tube (6031). The limiting block (311) is located in the guide groove (6034) and is slidably connected to the guide groove (6034).

7. A retractable fence with automatically retractable outriggers according to claim 6, characterized in that: The card plate (6036) has a rectangular groove (361) and four sets of rollers (362) are rotatably installed at equal intervals in the rectangular groove (361).

8. A retractable fence with automatically retractable outriggers according to claim 7, characterized in that: The movable lever (3) includes: Movable column (301), the movable column (301) is fixedly connected to the threaded sleeve (4); The second screw (302) is screwed to the movable column (301); A rack (303) is fixedly connected to the lower end of the movable column (301); A clearance groove (304) is formed on the rack (303); A slider (305) is movably installed in the clearance groove (304), and the lower end of the second screw (302) is rotatably connected to the slider (305).

9. A retractable fence with automatically retractable outriggers according to claim 8, characterized in that: The movable column (301) is movably connected to the inner cavity of the support frame (1), and the rack (303) meshes with the roller (605).

10. A retractable fence with automatically retractable outriggers according to claim 9, characterized in that: The slider (305) is used to push the card plate (6036), and the clearance groove (304) is used to avoid the card plate (6036).

Images