Street lamp and its foldable support rod

Abstract

The present invention provides a street lamp and a folding support rod thereof. The folding support rod includes: a fixed rod for fixing to the ground; a movable rod, the bottom of which is hinged to the top of the fixed rod, and a limiting structure for restricting the movable rod from continuing to swing after being erected is arranged between the fixed rod and the movable rod; a swing arm, the middle position of which is hinged to the fixed rod, and one end of the swing arm is connected with a pull rope to drive the swing arm to act through the pull rope; a connecting rod is connected between the end of the swing arm opposite to the pull rope and the movable rod, or a long hole is arranged on one of the end of the swing arm opposite to the pull rope and the movable rod, and a hinge shaft for realizing the hinge connection between the swing arm and the connecting rod is arranged in the long hole, so that the movable rod swings to the vertical state under the drive of the swing arm. The bottom of the movable rod is hinged to the top of the fixed rod, which directly shortens the length of the movable rod from the structure. By arranging a connecting rod or a long hole between the movable rod and the fixed rod and relying on the swing arm to drive the movable rod to act, the driving problem of the movable rod is solved, and the movable rod can meet the requirements of being convenient for transportation and maintenance.

Description

Technical Field

[0001] The present invention relates to the field of lighting devices, and particularly to a street lamp and its foldable support rod. Background Art

[0002] Due to the need for lighting, the support rod for supporting the light bulb in a street lamp is relatively high in height and is of an integral structure. The problems existing therein are as follows: First, this structure is not convenient for transportation, and during the installation process, a large lamp truck needs to be used for hoisting installation. In some special areas where lamp trucks cannot enter, the installation is particularly difficult; Second, street lamps are outdoor equipment and are prone to failure. Once a failure occurs, operators need to work at heights to repair them, which is inconvenient to operate and poses a safety hazard.

[0003] In view of the above problems, technicians have proposed a foldable street lamp, which uses the folding characteristic to reduce the height of the installed and repaired parts in the street lamp. For example, a foldable lamp post disclosed in a patent document with the authorization publication number CN202118837U and the authorization publication date of January 18, 2012, mainly consists of two parts, namely a fixed post fixed to the ground and a movable post hinged to the top of the fixed post. The hinge point for the movable post to be hinged to the fixed post is located in the middle of the movable post. When in use, the lower part of the movable post is an opening adapted to the outer peripheral surface of the fixed post and can abut against the outer peripheral surface of the fixed post when erected. A pull rope is provided at the bottom of the movable post for the operator to drive the movable post to swing, and a bolt for fixing to the movable post is also provided.

[0004] When an operator needs to repair the lamp on the top of the lamp post, the pull rope is tied to the bottom of the movable post and fixed downward to the bolt between the movable post and the fixed post. The operator manually lifts the bottom of the movable post to make the movable post rotate around the hinge axis, and the top of the movable post will drop as the movable post rotates. After dropping to a certain height, the operator can repair the lamp on the movable post. The problems existing therein are as follows: Since the bottom of the movable post needs to be provided with a pull rope and a bolt for human operation, the overall length of the movable post is only slightly shorter than the overall length of the lamp post. In this way, the movable post still has the problem of difficult transportation due to its long length, and the position where the movable post is hinged to the fixed post is located in the middle of the movable post. When lowering the lamp on the top of the movable post, both the left and right ends of the movable post need to swing correspondingly, and the maintenance occupies too much site space, which may affect normal traffic. Summary of the Invention

[0005] The purpose of the present invention is to provide a foldable support rod, which can solve the problem of difficult transportation of the foldable lamp post in the prior art; another purpose of the present invention is to provide a street lamp using the foldable support rod, which has the advantages of convenient transportation and maintenance.

[0006] To achieve the above purpose, the foldable support rod in the present invention adopts the following technical solutions:

[0007] Folding support rod, comprising:

[0008] Fixed rod, used for fixing to the ground;

[0009] Movable rod, the bottom of which is hinged to the top of the fixed rod, and a limiting structure for limiting the continued swinging of the movable rod after it is erected is arranged between the fixed rod and the movable rod;

[0010] Swing arm, the middle position of which is hinged to the fixed rod, one end of the swing arm is connected with a pull rope to drive the swing arm to act through the pull rope; a connecting rod is connected between the other end of the swing arm opposite to the pull rope and the movable rod, or, a long hole is arranged on one of the other end of the swing arm opposite to the pull rope and the movable rod, and a hinge shaft for realizing the hinge connection between the swing arm and the connecting rod is inserted in the long hole, so that the movable rod swings to the vertical state under the drive of the swing arm.

[0011] Its beneficial effect is that: the bottom of the movable rod is hinged to the top of the fixed rod, which directly shortens the length of the movable rod in structure and reduces the length requirement of the folding support rod for the vehicle during transportation. Compared with the prior art, the shortened movable rod is driven by a swing arm hinged to the fixed rod, the input end of the swing arm is connected with the pull rope, and the operator drives the movable rod to swing by pulling the pull rope. And because a limiting structure for limiting the continued swinging of the movable rod is arranged between the movable rod and the fixed rod, after the movable rod moves to the vertical state, the movable rod always remains stable under the simultaneous action of the pulling force of the swing arm and the acting force of the limiting structure. In the present invention, by arranging a connecting rod or a long hole between the movable rod with a shorter length and the fixed rod and relying on the swing arm to drive the movable rod to act, the driving problem of the movable rod is solved, so that the movable rod can meet the requirements of being convenient for transportation and maintenance.

[0012] Further, the parts of the swing arm connected with the pull rope and the connecting rod are arranged on the side of the folding support rod facing away from the hinge point of the fixed rod and the movable rod.

[0013] Its beneficial effect is that: the parts of the swing arm connected with the pull rope and the connecting rod are arranged on the side facing away from the hinge point. When the swing arm drives the folding support rod to swing, the pulling force of the swing arm drives the swing arm and the movable rod to rotate in the downward direction, which is more labor-saving.

[0014] Further, the swing arm is in a T shape, and connection holes for connecting with the connecting rod, the fixed rod and the pull rope are respectively arranged on the three end parts of the swing arm.

[0015] Its beneficial effect is that: using a T-shaped swing arm, redundant structures are minimized as much as possible while meeting the connection requirements, making the swing arm more lightweight, and the operator can drive the swing arm to swing more easily through the pull rope.

[0016] Further, two groups of swing arms and connecting rods are arranged, and are respectively arranged on the opposite sides outside the fixed rod and the movable rod.

[0017] The beneficial effects are as follows: By providing two sets of swing arms and connecting rods, it is possible to avoid the need to set up avoidance structures for the swing arms and connecting rods in the moving rod and the fixed rod when only one swing arm and connecting rod are provided, ensuring the integrity of the outer peripheries of the moving rod and the fixed rod; moreover, using two sets of swing arms and connecting rods also improves the reliability of the mechanism.

[0018] Further, the contour of the connecting rod is an arc, and the center of the circle corresponding to the arc is located on the side of the connecting rod close to the hinge position of the moving rod and the fixed rod.

[0019] The beneficial effects are as follows: By setting the connecting rod to be arc-shaped, it is possible to utilize the arc shape to avoid interference between the connecting rod and other structures during the swinging of the moving rod, ensuring the smooth movement of the swing arm and the connecting rod.

[0020] Further, a base is provided at the bottom of the fixed rod, and bolt through-holes are provided on the base; on the pulling rope connected to the swing arm, there are pulling rope through-holes corresponding to the bolt through-holes on the base, for the bolt to pass through the pulling rope through-hole and be screwed with the bolt through-hole on the base to achieve the fixation of the pulling rope.

[0021] The beneficial effects are as follows: By setting the fixing position of the pulling rope on the base of the fixed rod, there is no need to additionally manufacture a structure for fixing the pulling rope on-site, and relying on the cooperation of the pulling rope through-hole on the pulling rope and the bolt, the operator can conveniently fix the pulling rope.

[0022] Further, the hinge position between the moving rod and the fixed rod is located on the outer peripheral surface; a lamp arm for connecting a lamp is provided on the moving rod, and the lamp arm and the hinge point of the moving rod and the fixed rod are on the same side.

[0023] The beneficial effects are as follows: By setting the lamp arm on the same side as the hinge position of the moving rod and the fixed rod, the overall center of gravity of the moving rod and the lamp arm is shifted, and the gravity of the moving rod and the lamp arm can be utilized to drive the moving rod to swing from the vertical state to the drooping state, eliminating the need for the operator to additionally set up a mechanism for driving the moving rod to swing downward, making the overall structure of the folding support rod simpler.

[0024] To achieve the above object, the street lamp in the present invention adopts the following technical solutions:

[0025] A street lamp, comprising a folding support rod and a lamp installed on the folding support rod;

[0026] The folding support rod includes:

[0027] A fixed rod for fixing to the ground;

[0028] A moving rod, the bottom of which is hinged to the top of the fixed rod, and a limiting structure for restricting the continuous swinging of the moving rod after it is erected is provided between the fixed rod and the moving rod;

[0029] The swing arm is hinged to the fixed rod at its middle position. One end of the swing arm is connected with a pulling rope to drive the swing arm to act through the pulling rope. A connecting rod is connected between the other end of the swing arm opposite to the pulling rope and the moving rod. Or, a long hole is provided on one of the other end of the swing arm opposite to the pulling rope and the moving rod, and a hinge shaft for hinging the swing arm and the connecting rod is inserted into the long hole, so that the moving rod swings to the vertical state under the drive of the swing arm.

[0030] The beneficial effects are as follows: The bottom of the moving rod is hinged to the top of the fixed rod, which directly shortens the length of the moving rod in structure and reduces the length requirement of the folding support rod for the vehicle during transportation. Compared with the prior art, the shortened moving rod is driven by the swing arm hinged to the fixed rod. The input end of the swing arm is connected with the pulling rope, and the operator drives the moving rod to swing by pulling the pulling rope. And because a limiting structure for restricting the continuous swing of the moving rod is arranged between the moving rod and the fixed rod, after the moving rod moves to the vertical state, the moving rod always remains stable under the simultaneous action of the pulling force of the swing arm and the acting force of the limiting structure. In the present invention, a connecting rod is arranged between the moving rod with a shorter length and the fixed rod, and the moving rod is driven by relying on the swing arm, so as to solve the driving problem of the moving rod and enable the moving rod to meet the requirements of being convenient for transportation and maintenance.

[0031] Further, the parts of the swing arm connected with the pulling rope and the connecting rod are arranged on the side of the folding support rod facing away from the hinge point of the fixed rod and the moving rod.

[0032] The beneficial effects are as follows: The parts of the swing arm connected with the pulling rope and the connecting rod are arranged on the side facing away from the hinge point. When the swing arm drives the folding support rod to swing, the pulling force of the swing arm drives the swing arm and the moving rod to rotate along the downward direction, which is more labor-saving.

[0033] Further, the swing arm is in a T shape, and connecting holes for connecting with the connecting rod, the fixed rod and the pulling rope are respectively arranged on the three end parts of the swing arm.

[0034] The beneficial effects are as follows: Using a T-shaped swing arm, the redundant structure is minimized as much as possible while meeting the connection requirements, making the swing arm lighter. The operator can drive the swing arm to swing more easily through the pulling rope.

[0035] Further, two groups of swing arms and connecting rods are provided and are respectively arranged on the opposite sides outside the fixed rod and the moving rod.

[0036] The beneficial effects are as follows: Arranging two groups of swing arms and connecting rods can avoid setting a single swing arm and connecting rod and arranging an avoidance structure for avoiding the swing arm and the connecting rod in the moving rod and the fixed rod, ensuring the integrity of the outer periphery of the moving rod and the fixed rod; and using two groups of swing arms and connecting rods also improves the reliability of the mechanism.

[0037] Further, the contour of the connecting rod is an arc, and the center of the circle corresponding to the arc is located on the side of the connecting rod close to the hinge position of the moving rod and the fixed rod.

[0038] The beneficial effects are as follows: The connecting rod is set as an arc shape, which can utilize the arc shape to avoid interference between the connecting rod and other structures during the swinging of the moving rod, ensuring the smooth movement of the swing arm and the connecting rod.

[0039] Furthermore, a base is provided at the bottom of the fixed rod, and bolt through-holes are provided on the base; a pull rope perforation corresponding to the bolt through-hole on the base is provided on the pull rope connected to the swing arm, for the bolt to pass through the pull rope perforation and be screwed with the bolt through-hole on the base to realize the fixation of the pull rope.

[0040] The beneficial effects are as follows: Setting the fixing position of the pull rope on the base of the fixed rod eliminates the need to fabricate additional structures for fixing the pull rope on-site, and relying on the cooperation of the pull rope perforation on the pull rope and the bolt enables the operator to conveniently fix the pull rope.

[0041] Furthermore, the hinge position between the moving rod and the fixed rod is located on the outer peripheral surface; a lamp arm for connecting a lamp is provided on the moving rod, and the lamp arm is on the same side as the hinge point between the moving rod and the fixed rod.

[0042] The beneficial effects are as follows: Setting the lamp arm on the same side as the hinge position between the moving rod and the fixed rod offsets the overall center of gravity of the moving rod and the lamp arm, enabling the gravity of the moving rod and the lamp arm to drive the moving rod to swing from the vertical state to the drooping state, eliminating the need for the operator to set up a mechanism for driving the downward swing of the moving rod and making the overall structure of the folding support rod simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 Schematic diagram of the moving rod in a vertical state in Embodiment 1 of the street lamp of the present invention;

[0044] Figure 2 Schematic diagram of the moving rod in a downward swing state in Embodiment 1 of the street lamp of the present invention;

[0045] Figure 3 Schematic diagram of the structure of the connecting rod and the swing arm in Embodiment 1 of the street lamp of the present invention;

[0046] Figure 4 Schematic diagram of the moving rod in a vertical state in Embodiment 2 of the street lamp of the present invention;

[0047] In the figure: 10 - moving rod; 20 - fixed rod; 21 - base; 22 - fixed rod hinge plate; 23 - base through-hole; 30 - lamp arm; 40 - swing arm; 41 - connection hole A; 42 - connection hole B; 43 - connection hole C; 50 - connecting rod; 60 - pull rope; 70 - fixed shaft; 71 - wire threading hole. DETAILED DESCRIPTION OF THE INVENTION

[0048] The specific embodiments of the folding support rod and the street lamp in the present invention will now be described with reference to the accompanying drawings.

[0049] Embodiment 1 of the street lamp: The main components of the street lamp include a lamp and a lamp post for fixing the lamp. The lamp post used in the present invention is a foldable support rod, which can avoid the operator from climbing the pole and the foldable structure can also reduce the transportation requirements. The structure of the street lamp in the present invention is as shown in Figure 1 and 2 shown. The street lamp includes a foldable support rod, a lamp arm 30 connected to the foldable support rod, and a lamp fixed on the lamp arm 30.

[0050] The foldable support rod is divided into a moving rod 10 located at the upper part during use and a fixed rod 20 located at the lower part. The lengths of the moving rod 10 and the fixed rod 20 are nearly equal. The bottom of the moving rod 10 is hinged to the top of the fixed rod 20, and the moving rod 10 can swing around the hinge point with the fixed rod 20. A base 21 is provided at the end of the fixed rod 20, which can increase the contact area between itself and the ground when the fixed rod 20 is fixed to the ground and ensure the stability of the support of the fixed rod 20.

[0051] A swing arm 40 and a connecting rod 50 for driving the swing of the moving rod 10 are also provided between the moving rod 10 and the fixed rod 20. The swing arm 40 is in a T shape, and connection holes A41 for hinging with the connecting rod 50, connection holes B42 for hinging with the fixed rod 20, and connection holes C43 for connecting with a pull rope 60 are respectively provided at three end parts corresponding to the T shape. One end of the connecting rod 50 is hinged to the swing arm 40, and the other end is hinged to the moving rod 10.

[0052] Among them, the connection hole B42 hinged to the fixed rod 20 is located between the connection hole A41 and the connection hole C43, and the structure of the connecting rod 50 is arc-shaped. The center of the arc is close to the fixed rod 20, so that the connecting rod 50 bulges away from the moving rod 10 and the fixed rod 20, and the distance between the two can be increased during the process of the connecting rod 50 driving the moving rod 10 to swing, reducing the possibility of interference between the connecting rod 50 and the moving rod 10.

[0053] As shown in Figure 3 shown, two groups of swing arms 40 and connecting rods 50 are provided, which are respectively arranged on both sides of the moving rod 10 and the fixed rod 20, so that the moving rod 10 and the fixed rod 20 are clamped between the swing arms 40 and the connecting rods 50. A fixed shaft 70 is inserted through the connection holes C43 of the two swing arms 40. A threading hole 71 is provided on the fixed shaft 70 for one end of the pull rope 60 to be connected to the fixed shaft 70, and the other end of the pull rope 60 is for the operator to pull, or to be connected to a fixed structure fixed to the ground to limit the position of the pull rope 60.

[0054] The hinge point of the moving rod 10 and the fixed rod 20 is located on the side opposite to the swing arm 40 and the connecting rod 50. Its specific structure is as follows: On the outer peripheral surface of the side of the moving rod 10 facing away from the swing arm 40 and the connecting rod 50, two spaced-apart moving rod hinge plates are fixedly connected. On the two moving rod hinge plates, there are hinge holes arranged in the horizontal direction. On the outer peripheral surface of the side of the fixed rod 20 facing away from the swing arm 40 and the connecting rod 50, two spaced-apart fixed rod hinge plates 22 are also fixedly connected. On the two fixed rod hinge plates 22, there are hinge holes arranged in the horizontal direction. Among them, the distance between the moving rod hinge plates is smaller than the distance between the fixed rod hinge plates 22. Therefore, when the moving rod 10 is hinged to the fixed rod 20, the moving rod hinge plates are located between the two fixed rod hinge plates 22, and the moving rod 10 and the fixed rod 20 are hinged by passing a hinge shaft through the moving rod hinge plates and the fixed rod hinge plates 22 at the same time.

[0055] The ends of the moving rod 10 and the fixed rod 20 facing each other have flat end faces. When the moving rod 10 is in the vertical state, the end face at the bottom of the moving rod 10 extends in the horizontal direction, and the end face at the top of the fixed rod 20 extends in the horizontal direction. When the moving rod 10 sits on the fixed rod 20, the end faces facing each other form a limiting structure that restricts the further rotation of the moving rod 10.

[0056] The lamp arm 30 is connected to the side of the moving rod 10 opposite to the hinge point of the moving rod 10 and the fixed rod 20, that is, on the side of the folding support rod opposite to the connecting rod 50 and the swing arm 40. Such a setting will cause the overall center of gravity of the moving rod 10 and the lamp arm 30 to be offset from the axis of the moving rod 10, so that the hinge point of the moving rod 10 and the fixed rod 20 and the center of gravity are on the same side in the vertical direction. When it is necessary to lay down the moving rod 10, the moving rod 10 loses the pulling restriction of the connecting rod 50 and the swing arm 40 and can be tilted only under the action of gravity.

[0057] The pull rope 60 that cooperates with the swing arm 40 is made of a steel wire rope in this embodiment. One end of it is connected to the swing arm 40, and the other end is provided with a pull rope perforation. The pull rope 60 can be directly connected to the ring piece, using the perforation in the middle of the ring piece as the pull rope perforation, or a pull rope perforation can be directly made on the body of the pull rope 60 without relying on an additional structure.

[0058] On the base 21 of the fixed rod 20, there is a base perforation 23. When the swing arm 40 and the connecting rod 50 limit the moving rod 10 in the vertical state, align the pull rope perforation with the base perforation 23, and use a bolt to pass through the two perforations and fix it to the base perforation 23 to lock the pull rope 60, so that the swing arm 40 and the connecting rod 50 keep the moving rod 10 in the vertical state under the action of the pull rope 60.

[0059] When an operator uses the street lamp of the present invention, the folding support rod of the street lamp can solve the two major problems of transportation and maintenance. During transportation, since the bottom of the movable rod 10 is directly hinged to the top of the fixed rod 20, it adopts a different hinging method from the lamp pole disclosed in the document with the authorized publication number CN202118837U. In that document, the middle of the movable rod 10 is hinged to the fixed rod 20, and the lengths of the movable rod 10 and the fixed rod 20 differ greatly. In the present invention, the movable rod 10 and the fixed rod 20 of the folding support rod can adopt nearly equal sizes, thereby reducing the limitation on the transportation vehicle and facilitating the transportation of the movable rod 10 and the fixed rod 20 simultaneously.

[0060] During maintenance, loosening the pull rope 60 enables the movable rod 10 to swing downward by relying on the self-weight of the movable rod 10 and the lamp arm 30. After the movable rod 10 swings downward, it drives the lamp arm 30 and the lamp towards the operator, avoiding the operator from climbing the pole for work. After the lamp is maintained, the operator uses the pull rope 60, the connecting rod 50 and the swing arm 40 to drive the movable rod 10 to swing to the vertical state. Since the length of the movable rod 10 is shortened and it has an end face facing the fixed rod 20 during the swinging process, a limiting structure that restricts the continuous swinging of the movable rod 10 can be formed when the opposite end faces of the movable rod 10 and the fixed rod 20 are in contact. After the movable rod 10 swings to the vertical state, the movable rod 10 always remains stable under the simultaneous action of the pulling force of the pull rope 60 and the end face supporting force.

[0061] As Figure 4 shown, Embodiment 2 of the street lamp: The difference from Embodiment 1 above is that the position where the lamp arm 30 is arranged is different. In this embodiment, the lamp arm 30 is arranged on the side opposite to the hinge point of the movable rod 10 and the fixed rod 20. When arranged in this way, the overall center of gravity of the movable rod 10 and the lamp arm 30 will be biased towards the left side of the axial direction of the movable rod 10. When pulling the movable rod 10 from the fallen state to the vertical state, the movement trend of the movable rod 10 and the lamp arm 30 swinging to the left can be utilized to quickly move the movable rod 10 to the vertical state.

[0062] Embodiment 3 of the street lamp: The difference from the above embodiment is that long holes are provided at the corresponding positions of the swing arm or the movable rod, and the hinge shaft for hinging the swing arm and the movable rod can slide in the long holes, so that the swing arm and the movable rod can swing more flexibly, avoiding jamming and affecting the normal movement of the movable rod.

[0063] Embodiment 4 of the street lamp: The difference from the above embodiment is that the connection part where the swing arm is connected to the pull rope and the connecting rod can be on the same side as the hinge point of the movable rod and the fixed rod. At this time, when the operator uses the pull rope to pull the swing arm, the swing arm drives the connecting rod to push the movable rod upward from the drooping state to the vertical state.

[0064] Embodiment 5 of the street lamp: The difference from the above embodiment is that the swing arm can also adopt other shapes, such as Y-shaped or square plate structures, etc. As long as there are connection holes reserved on the swing arm for connecting with the movable rod, fixed rod and pull rope, it is not limited to using a T-shaped swing arm.

[0065] Embodiment 6 of the street lamp: The difference from the above embodiment is that only one swing arm and one connecting rod can be provided. At this time, the connecting rod and the swing arm are arranged in the movable rod and the top rod, and the movable rod and the top rod need to reserve a space for the connecting rod and the swing arm to swing.

[0066] Embodiment 7 of the street lamp: The difference from the above embodiment is that the connecting rod can also adopt other shapes, such as a straight line shape, but it is necessary to increase the size of the connecting rod to avoid interference between the connecting rod and the movable rod or the swing arm when swinging.

[0067] Embodiment 8 of the street lamp: The difference from the above embodiment is that a wire nose can be arranged on the outer peripheral surface of the fixed rod, and the pull rope is fixed through the wire nose, rather than being limited to arranging a base on the fixed rod and arranging a base perforation on the base to fix the pull rope through bolts.

[0068] The structure of the folding support rod in the present invention is the same as that of the folding support rod in the above street lamp embodiment, and the achieved technical effects are also the same. The folding support rod can not only support the lamp, but also support devices such as solar panels that need to be lifted. Therefore, the embodiments of the folding support rod will not be repeated here.

[0069] The specific embodiments described above further elaborate on the invention purpose, technical solution and beneficial effects of the present invention. It should be understood that the above is only the specific embodiment of the present invention and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Folding support rod Characterized in that: Comprising A fixed rod for fixing to the ground; A movable rod, the bottom of which is hinged to the top of the fixed rod. A limiting structure is provided between the fixed rod and the movable rod to limit the continuous swinging after the rod is erected. A lamp arm for connecting a lamp is provided on the movable rod, and the lamp arm is arranged on the side facing away from the hinge point of the movable rod and the fixed rod; A swing arm, the middle position of which is hinged to the fixed rod. One end of the swing arm is connected with a pull rope to drive the swing arm to act through the pull rope; A connecting rod is connected between the other end of the swing arm opposite to the pull rope and the movable rod, so that the movable rod swings to a vertical state under the drive of the swing arm. The contour of the connecting rod is an arc, and the center of the arc is located on the side of the connecting rod close to the hinge position of the movable rod and the fixed rod. The parts of the swing arm connected with the pull rope and the connecting rod are arranged on the side of the folding support rod facing away from the hinge point of the fixed rod and the movable rod. The swing arm is in a T shape, and connecting holes for connecting with the connecting rod, the fixed rod and the pull rope are respectively provided on the three end parts of the swing arm.

2. The folding support rod according to claim 1 Characterized in that: There are two groups of swing arms and connecting rods, which are respectively arranged on the opposite sides outside the fixed rod and the movable rod.

3. The folding support rod according to claim 1 Characterized in that: A base is provided at the bottom of the fixed rod, and a bolt through hole is provided on the base; A pull rope through hole corresponding to the bolt through hole on the base is provided on the pull rope connected with the swing arm, and the bolt passes through the pull rope through hole and is screwed with the bolt through hole on the base to realize the fixation of the pull rope.

4. The folding support rod according to claim 1 Characterized in that: The hinge position of the movable rod and the fixed rod is located on the outer peripheral surface.

5. A street lamp, comprising a folding support rod and a lamp installed on the folding support rod Characterized in that: The folding support rod is the folding support rod according to any one of claims 1-4 above.

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