Portable lifting rod with beak-shaped locking structure

Abstract

The utility model provides a portable lifting rod with a beak-shaped locking structure, which comprises a lifting rod body, the lifting rod body comprises at least two pipe bodies which are sequentially connected in a sleeved mode, the pipe body located on the inner layer of the two adjacent pipe bodies is defined as an inner pipe, the pipe body located on the outer layer of the two adjacent pipe bodies is defined as an outer pipe, the inner pipe is provided with at least one locking hole set, and the lifting rod body is provided with a plurality of locking holes. Each locking hole set is provided with a first locking hole and a second locking hole which are formed in the moving direction of the inner pipe in a spaced mode. The locking structure comprises a pipe sleeve arranged around the outer pipe and at least one locking handle rotationally arranged on the pipe sleeve, and one end of the locking handle extends into the pipe sleeve and is provided with a barb; under the action of external force, the locking handle is in linkage with the barb to rotate forwards and backwards, so that the barb is clamped in or separated from the first locking hole or the second locking hole, and the inner pipe and the outer pipe are locked or released. The technical problem that a traditional lifting rod cannot be locked is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting rods, in particular to a portable lifting rod with a beak-shaped locking structure. Background Art

[0002] The lifting rod is a device that is easy to set up, withdraw and carry. It has the advantages of light weight, small maximum pipe diameter (generally not exceeding 120mm), and small closed height (generally not exceeding 1.6m). It is often used for setting up direction-finding antennas and other equipment in the field.

[0003] Figure 1 The figure shows a commonly used lifting rod 1 in the industry, which includes a pipe assembly 11 and a locking assembly 12. The top of the pipe assembly 11 is used to set up equipment, and the bottom is provided with a tripod. The pipe assembly 11 is composed of a plurality of pipes stacked together, and the locking assembly 12 is installed at the end of each pipe. Figure 2 As shown, the locking assembly 12 includes a pipe sleeve 121, a locking sleeve 122, a locking handle 123, a pin 124, a gasket 125, a hinge bolt 126 and a locking nut 127; the pipe sleeve 121 is fixed to the pipe, the locking sleeve 122 is arranged in the pipe sleeve 121, and it is a non-closed structure, which can produce radial deformation under the action of external force; the locking handle 123 and the hinge bolt 126 are connected by a pin 124, and the two can rotate relative to each other.

[0004] During operation, the locking handle entity between the pin and the spacer block becomes less, the locking sleeve pops outward, the internal radial space becomes larger, the force between the pipe fitting and the locking sleeve decreases until it is zero, and the two are completely out of contact. At this time, the pipe fitting can slide freely in the locking sleeve; conversely, the locking handle entity between the pin and the spacer block becomes more, the spacer block is driven to compress the locking sleeve, and the internal radial space of the locking sleeve becomes smaller until it contacts the pipe fitting and deforms to generate elastic force. This force causes a large friction force to be generated between the locking sleeve and the pipe fitting. At this time, the pipe fitting is locked and cannot move axially.

[0005] However, when the upper load of the lifting rod is too large (for example, when the equipment to be elevated has a large windward area and the wind is also relatively strong), or when the gap becomes larger after repeated use (for example, the thickness of the pad becomes thinner after repeated use), in this state, the locking force of the locking assembly that relies on friction force to lock the pipe assembly is insufficient and cannot be locked, which may cause the pipe assembly to slip and lead to locking failure. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a portable lifting rod with a beak-shaped locking structure to solve the technical problem that the traditional lifting rod in the related art cannot be locked.

[0007] The utility model provides a portable lifting rod with a beak-shaped locking structure, comprising:

[0008] The lifting rod body comprises at least two tubes which are sleeved in sequence, wherein the tube located in the inner layer of the two adjacent tubes is defined as the inner tube, and the tube located in the outer layer is defined as the outer tube, the inner tube can extend from the outer tube or be inserted into the outer tube, and the inner tube is provided with at least one group of locking holes, each group of the locking holes has a first locking hole and a second locking hole which are arranged at intervals along the moving direction of the inner tube;

[0009] The locking structure comprises a sleeve arranged around the outer tube, and at least one locking handle rotatably arranged on the sleeve, one end of the locking handle extends into the sleeve and is provided with a barb;

[0010] Wherein, under the action of external force, the locking handle links the barb to rotate forward and reverse, so that the barb is stuck in or disengaged from the first locking hole or the second locking hole, so as to lock or release the inner tube and the outer tube.

[0011] Furthermore, the locking handle includes a locking end and a pinching end which are arranged at an angle, the connection between the locking end and the pinching end is rotatably connected to the pipe sleeve via a rotating pin, and the barb is formed on the locking end.

[0012] Furthermore, the rotating pin sleeve is provided with a torsion spring, and the two ends of the torsion spring respectively abut against the pipe sleeve and the hand-pinching end.

[0013] Furthermore, the locking end and / or the hand-pinching end is provided with a cavity for evading the torsion spring.

[0014] Furthermore, at least two supports are extended outwardly from the circumference of the pipe sleeve, and the rotating pin is rotatably disposed through the two supports.

[0015] Furthermore, an opening is configured between the two supports, and the opening extends into the sleeve for allowing the barb to pass through.

[0016] Furthermore, a retaining ring is provided outside the opening, and the retaining ring is sleeved on the rotating pin and abuts against one of the supports.

[0017] Furthermore, the pipe sleeve is located at the end of the outer pipe and is rigidly connected thereto.

[0018] Furthermore, the inner tube and the outer tube are respectively provided with matching limiting sliding seats and limiting steps for separation or abutment.

[0019] Furthermore, the opposite surfaces of the inner tube and the outer tube are respectively provided with matching guide grooves and guide protrusions, the guide grooves and the guide protrusions are arranged along the moving direction of the inner tube, and the two are slidably matched.

[0020] Compared with the prior art, the utility model has the following beneficial effects: the inner and outer tubes that are sequentially sleeved can make the inner tube move relative to the outer tube, so that the inner tube can extend into or out of the outer tube under the action of external force; furthermore, the locking structure is fixed as a whole to each outer tube through the tube sleeve, and the barb on it is driven to rotate by the forward and reverse locking handle, so that the barb can be locked or disengaged from the first locking hole or the second locking hole provided in the inner tube, replacing the locking method using friction force, thereby improving the reliability of locking the inner and outer tubes and avoiding the relative slippage of the inner and outer tubes when the lifting rod is overloaded or used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a lifting rod in the prior art;

[0022] Figure 2 It is a structural schematic diagram of a locking assembly in the prior art;

[0023] Figure 3 It is a structural schematic diagram of a portable lifting rod with a beak-shaped locking structure in one embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the inner tube in one embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a locking structure in an embodiment of the utility model;

[0026] Figure 6 An exploded view of a locking structure in an embodiment of the utility model;

[0027] Figure 7 A half-section view of a locking structure in one embodiment of the utility model;

[0028] Figure 8 It is a structural schematic diagram of a locking handle in one embodiment of the utility model;

[0029] Fig. 9 It is a structural schematic diagram of a locking handle in an embodiment of the utility model in a natural locking state;

[0030] Fig.10 It is a structural schematic diagram of a locking handle in an embodiment of the utility model in a natural locking state;

[0031] Fig.11 It is a structural schematic diagram of a locking handle in an embodiment of the utility model in a natural locking state;

[0032] Fig.12 It is a schematic structural diagram of a locking handle in an embodiment of the utility model being located between a first locking hole and a second locking hole;

[0033] Fig.13 It is a structural schematic diagram of a locking handle in an embodiment of the utility model in a hand-pinch unlocking state;

[0034] Fig.14 It is a structural schematic diagram of the guide groove and the guide protrusion in one embodiment of the utility model.

[0035] Description of Figure Numbers:

[0036] 1. Lifting rod; 11. Pipe assembly; 12. Locking assembly; 121. Pipe sleeve; 122. Locking sleeve; 123. Locking handle; 124. Pin; 125. Spacer; 126. Visible bolt; 127. Locking nut; 2. Inner tube; 3. Outer tube; 4. First locking hole; 5. Second locking hole; 6. Pipe sleeve; 7. Locking handle; 701. Locking end; 702. Barb; 703. Hand pinch end; 704. Cavity; 8. Rotating pin; 9. Torsion spring; 10. Support; 11. Opening; 12. Retaining ring; 13. Limiting slide; 14. Guide groove; 15. Guide protrusion.

[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0039] In the embodiment of the present utility model, Figure 3-Figure 13 As shown, the portable lifting rod with a beak-shaped locking structure comprises: a lifting rod body and a locking structure; the lifting rod body comprises at least two tubes which are sleeved in sequence, wherein the tube located in the inner layer of the two adjacent tubes is defined as an inner tube 2, and the tube located in the outer layer is defined as an outer tube 3, the inner tube 2 can extend from the outer tube 3 or be inserted into the outer tube 3, and the inner tube 2 is provided with at least one group of locking holes, each group of the locking holes has a first locking hole 4 and a second locking hole 5 which are arranged at intervals along the moving direction of the inner tube 2; the locking structure comprises a tube sleeve 6 arranged around the outer tube 3, and at least one locking handle 7 rotatably arranged on the tube sleeve 6, one end of the locking handle 7 extends into the tube sleeve 6, and is provided with a barb 702;

[0040] Wherein, under the action of external force, the locking handle 7 links the barb 702 to rotate forward and reverse, so that the barb 702 is stuck in or disengaged from the first locking hole 4 or the second locking hole 5, so as to lock or release the inner tube 2 and the outer tube 3.

[0041] Specifically, in the embodiment of the utility model, an elevated platform is provided on the top of the lifting rod body for elevating equipment, and a foldable tripod is provided at the bottom thereof; the lifting rod body includes a plurality of tube bodies which are sequentially socketed, and the following description is based on two adjacent tube bodies; the tube body located in the inner layer of the two adjacent tube bodies is defined as the inner tube 2, and the tube body located in the outer layer is defined as the outer tube 3, and the inner tube 2 is movably arranged in the outer tube 3, so that the inner tube 2 can be extended from the outer tube 3 or inserted into the outer tube 3, and then under the action of external force, by changing the moving position of the inner tube 2 in the outer tube 3, the lifting rod body can be extended upward or contracted downward, which is convenient for carrying.

[0042] In an embodiment of the utility model, at least one group of locking holes is provided on the outer surface of the inner tube 2 (in order to improve the locking force of the lifting rod body, this embodiment takes two groups of locking holes as an example), and each group of locking holes includes a first locking hole 4 and a second locking hole 5 which are spaced apart in the up and down directions.

[0043] Specifically, a sleeve 6 is disposed around the outer tube 3, and two locking handles 7 are rotatably disposed on the sleeve 6, and the two locking handles 7 are symmetrically disposed with the axis of the sleeve 6 as the symmetry axis; one end of the locking handle 7 can be inserted into the sleeve 6, and the end inserted into the sleeve 6 is provided with a barb 702, and the barb 702 is used to cooperate with the first locking hole 4 and the second locking hole 5, and the barb 702 can be stuck or disengaged from the first locking hole 4 or the second locking hole 5 under the action of an external force. It can be understood that the locking handle 7 can be reversed at the sleeve 6 under the action of an external force, so that the barb 702 can be linked to reverse, pull or push the inner tube 2, so that the first locking hole 4 or the second locking hole 5 moves to the position corresponding to the barb 702, and the barb 702 can be extended into the corresponding locking hole or extended out of the locking hole under the rotation of the barb 702.

[0044] like Fig. 9 As shown, the barb 702 is clamped in the first locking hole 4 (or the second locking hole 5) to form a natural locking state. That is, in the natural locking state, the barb 702 is clamped in the first locking hole 4 (such as Fig.10 ), since the inner tube 2 can only move along its axial direction, the barb 702 of the locking handle 7 can only rotate along its rotation center, and the contact point of the two parts is the dead point of movement, which achieves the purpose of limiting the movement of the inner tube 2 and ensures that the inner tube 2 and the outer tube 3 do not slide relative to each other. When all the inner tubes 2 and the outer tubes 3 are in this state, the lifting rod body is in a closed state and cannot be unfolded without external force unlocking. At this time, the length of the lifting rod body is the shortest; similarly, the barb 702 is clamped at the second locking hole 5 (such as Fig.11 ), at this time, the length of the lifting rod body is the longest, which is used to raise the equipment. When the barb 702 transitions from one locking hole to another locking hole, as shown in FIG. Fig.12As shown, the barb 702 of the locking handle 7 contacts the surface of the inner tube 2, and the two can slide relative to each other. Fig.13 As shown, after the locking handle 7 is driven by external force to rotate in conjunction with the barb 702, the barb 702 can be disengaged from the locking hole to unlock the inner tube 2 and the outer tube 3, so that the inner tube 2 can move along its axial direction in the outer tube 3. Of course, since the main body of the lifting rod is a multi-tube structure, a locking handle 7 is provided at each outer tube 3, and in order to avoid movement interference between two adjacent locking handles 7 in the vertical direction, the corresponding locking handles 7 are arranged crosswise at an installation angle of 90°.

[0045] In this embodiment, the lifting rod body can be unfolded or closed by the cooperation between the inner tube 2 and the outer tube 3, which is convenient for carrying; at the same time, the beak-shaped barb 702 can be engaged or disengaged from the corresponding locking hole set on the surface of the inner tube 2 under the linkage of the locking handle 7, so as to lock or release the inner tube 2 and the outer tube 3. Compared with the traditional locking method using friction force, it can still avoid the relative slippage of the inner tube 2 and the outer tube 3 under heavy load or long-term use, and can keep the lifting rod body in the current state for a long time without external interference, thereby improving the locking force of the lifting rod body.

[0046] The process of unfolding the lifting rod body:

[0047] The initial state of the lifting rod body is closed. Turn the locking handle 7 to make the barb 702 withdraw from the first locking hole 4, and continue to pull the inner tube 2 upward. At this time, the barb 702 contacts the surface of the inner tube 2, and the two slide relative to each other. When the inner tube 2 is pulled until the second locking hole 5 reaches the barb 702, the inner tube 2 and the locking handle 7 are released, so that the barb 702 is stuck in the second locking hole 5, and under the action of gravity, the upper end surface of the second locking hole 5 of the inner tube 2 is pressed on the upper end surface of the barb 702 to achieve locking. Operate each inner tube 2 section by section until the lifting rod body is fully unfolded.

[0048] The process of withdrawing the lifting rod body in the unfolded state:

[0049] To withdraw the lifting rod body, the tubes must be withdrawn first; the withdrawal process of the tubes: the tubes before withdrawal are in a fully expanded state, the inner tube 2 is pulled upward so that the upper end surface of the second locking hole 5 of the inner tube 2 is no longer pressed on the upper end surface of the barb 702, and the locking handle 7 is turned, and then the inner tube 2 is slowly released downward to drive the barb 702 to withdraw from the second locking hole 5, and the inner tube 2 is slowly released downward. At this time, the barb 702 contacts the surface of the inner tube 2, and the two slide relative to each other. The inner tube 2 is slowly released until the first locking hole 4 reaches the barb 702, and the barb 702 rotates into the first locking hole 4 and hooks the lower end surface of the first locking hole 4 of the inner tube 2 to achieve locking. Operate each inner tube 2 section by section until the lifting rod body is completely closed. After closing, withdraw the tripod, etc. to complete the withdrawal of the lifting rod body.

[0050] like Figure 8 As shown, in one embodiment, the locking handle 7 includes a locking end 701 and a hand-pinch end 703 which are arranged at an angle, the connection between the locking end 701 and the hand-pinch end 703 is rotatably connected to the pipe sleeve 6 through a rotating pin 8, and the barb 702 is formed at the locking end 701. Specifically, in order to facilitate operation, the locking handle 7 is defined as an integrally formed locking end 701 and a hand-pinch end 703, which are arranged at an angle, which is convenient for hand holding on the one hand, and can also make the locking end 701 extend into the pipe sleeve 6 along the radial direction of the pipe sleeve 6 and match with the corresponding locking hole on the other hand; at the same time, the barb 702 is formed at the locking end 701, and the barb 702 is a beak-shaped structure, which can be easily extended into or extended from the locking hole, and the locking end 701 is formed with a plane, which can be easily contacted with the upper and lower end surfaces of the locking hole. Furthermore, a through hole is provided at the connection between the locking end 701 and the hand-holding end 703, through which the rotating pin 8 can rotate, so that the locking handle 7 as a whole can be rotated relative to the pipe sleeve 6 by rotating the rotating pin 8.

[0051] Further, in one embodiment, if Figure 6 , Figure 7 As shown, the rotating pin 8 is sleeved with a torsion spring 9, and the two ends of the torsion spring 9 respectively abut against the pipe sleeve 6 and the hand-pinching end 703. Specifically, in order to improve the operability of the locking structure, the embodiment is provided with a torsion spring 9, which is coaxially arranged with the rotating pin 8, and its two torsion arms respectively abut against the locking handle 7 and the pipe sleeve 6. When the locking structure is in a naturally locked state, the torsion spring 9 has a certain torque, and the unlocking locking structure only needs to be unlocked by pinching the hand-pinching end 703 of the locking handle 7 inward with one hand, which is more labor-saving; and under the action of the torsion spring 9, when the barb 702 is separated from the locking hole, it can be made to contact with the surface of the inner tube 2 and slide relatively. During operation, only one manual unlocking operation needs to be performed, and the action is reduced by half, which is more convenient to operate.

[0052] like Figure 8 As shown, in one embodiment, the locking end 701 and / or the hand-gripping end 703 are provided with a cavity 704 for avoiding the torsion spring 9. Specifically, in order to facilitate the installation of the torsion spring 9, in this embodiment, a connected cavity 704 is provided at both the locking end 701 and the hand-gripping end 703, that is, the cavity 704 is located at the lower cavity surface of the locking handle 7, so as to accommodate the torsion spring 9, and one end of the torsion spring 9 can be abutted against the lower cavity surface.

[0053] like Figure 5 , Figure 6As shown, in one embodiment, at least two supports 10 extend outward from the circumference of the pipe sleeve 6, and the rotating pin 8 is rotatably penetrated through the two supports 10. Specifically, in order to facilitate the installation of the rotating pin 8 on the surface of the pipe sleeve 6 so that the locking handle 7 can rotate relative to the pipe sleeve 6, this embodiment provides two supports 10 on the surface of the pipe sleeve 6, the two supports 10 are arranged at intervals, and a through hole is provided on the surface of the pipe sleeve 6 for the rotating pin 8 to pass through. Of course, since two locking handles 7 are provided in this embodiment, four supports 10 are provided on the surface of the pipe sleeve 6, and two supports 10 form a group for one rotating pin 8 to pass through.

[0054] Further, in one embodiment, if Figure 6 As shown, an opening 11 is configured between the two supports 10, and the opening 11 extends into the pipe sleeve 6 for the barb 702 to pass through. Specifically, in order to facilitate the barb 702 to pass through the pipe sleeve 6 and extend into it, the present embodiment provides an opening 11 between the two supports 10, and the opening 11 is formed on the surface of the pipe sleeve 6 and penetrates the pipe sleeve 6, so that the barb 702 can be easily extended into the pipe sleeve 6 through the opening 11, so as to achieve the limit fit or release fit of the locking hole of the barb 702.

[0055] Further, in one embodiment, if Figure 5 , Figure 6 As shown, a retaining ring 12 is provided outside the opening 11, and the retaining ring 12 is sleeved on the rotating pin 8 and abuts against one of the supports 10. Specifically, in order to prevent the rotating pin 8 from being separated from the support 10, the present embodiment sleeves a retaining ring 12 on the rotating pin 8, and the retaining ring 12 can abut against one of the supports 10, thereby limiting the rotating pin 8 at the support 10 and allowing the rotating pin 8 to rotate along its axial direction.

[0056] In one embodiment, the sleeve 6 is located at the end of the outer tube 3 and is rigidly connected thereto, and is used to position the locking handle 7 for easy installation; of course, since multiple tube bodies are provided in this embodiment, the inner tube 2 and the outer tube 3 are variables, so that in this embodiment, both the inner tube 2 and the outer tube 3 are fixed with the sleeve 6.

[0057] like Figure 4As shown, in one embodiment, the inner tube 2 and the outer tube 3 are respectively provided with a matching limiting slide 13 and a limiting step for separation or abutment. Specifically, in order to allow the barb 702 to extend into the second locking hole 5, a limiting slide 13 is provided at the bottom of the inner tube 2, and a limiting step (not shown) is provided at the top of the outer tube 3. When the limiting slide 13 slides with the inner tube 2 to abut against the limiting step, the inner tube 2 is in an expanded state at this time. By providing the matching limiting slide 13 and limiting step at the limit position, the inner tube 2 and the outer tube 3 can be effectively positioned, so as to facilitate the barb 702 to extend into the locking hole. Of course, the above-mentioned limiting step can also be added to the bottom of the outer tube 3. Similarly, when the limiting slide 13 abuts against the limiting step, it means that the inner tube 2 has moved to the limit position.

[0058] like Fig.14 As shown, in one embodiment, the opposite surfaces of the inner tube 2 and the outer tube 3 are respectively provided with matching guide grooves 14 and guide protrusions 15, and the guide grooves 14 and the guide protrusions 15 are arranged along the moving direction of the inner tube 2, and the two are slidably matched. Specifically, in order to facilitate the inner tube 2 to slide along its axial direction without radial rotation, this embodiment is provided with guide grooves 14 and guide protrusions 15 on the tube walls of the inner tube 2 and the outer tube 3, respectively, and the guide protrusions 15 can be slidably extended into the guide grooves 14, which can guide the inner tube 2 on the one hand and limit the rotation of the inner tube 2 on the other hand. In other embodiments, the positions of the guide grooves 14 and the guide protrusions 15 can also be exchanged, and multiple sets of matching guide grooves 14 and guide protrusions 15 can be provided to improve the stability of the lifting rod body when it moves.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A portable lifting rod with a beak-shaped locking structure, characterized in that: include: The lifting rod body comprises at least two tubes which are sleeved in sequence, wherein the tube located in the inner layer of the two adjacent tubes is defined as the inner tube, and the tube located in the outer layer is defined as the outer tube, the inner tube can extend from the outer tube or be inserted into the outer tube, and the inner tube is provided with at least one group of locking holes, each group of the locking holes has a first locking hole and a second locking hole which are arranged at intervals along the moving direction of the inner tube; The locking structure comprises a sleeve arranged around the outer tube, and at least one locking handle rotatably arranged on the sleeve, one end of the locking handle extends into the sleeve and is provided with a barb; Wherein, under the action of external force, the locking handle links the barb to rotate forward and reverse, so that the barb is stuck in or disengaged from the first locking hole or the second locking hole, so as to lock or release the inner tube and the outer tube.

2. The portable lifting rod with a beak-shaped locking structure according to claim 1, characterized in that: The locking handle comprises a locking end and a hand-pinch end which are arranged at an angle, the connection between the locking end and the hand-pinch end is rotatably connected to the pipe sleeve via a rotating pin, and the barb is formed on the locking end.

3. The portable lifting rod with a beak-shaped locking structure as claimed in claim 2, characterized in that: The rotating pin sleeve is provided with a torsion spring, and the two ends of the torsion spring respectively abut against the pipe sleeve and the hand-pinching end.

4. The portable lifting rod with a beak-shaped locking structure as claimed in claim 3, characterized in that: The locking end and / or the hand-pinching end is provided with a cavity for avoiding the torsion spring.

5. The portable lifting rod with a beak-shaped locking structure according to any one of claims 2 to 4, characterized in that: At least two supports are extended outwardly from the circumference of the pipe sleeve, and the rotating pin is rotatably arranged through the two supports.

6. The portable lifting rod with a beak-shaped locking structure as claimed in claim 5, characterized in that: An opening is configured between the two supports, and the opening extends into the sleeve for allowing the barb to pass through.

7. The portable lifting rod with a beak-shaped locking structure as claimed in claim 6, characterized in that: A retaining ring is arranged outside the opening, and the retaining ring is sleeved on the rotating pin shaft and abuts against one of the supports.

8. The portable lifting rod with a beak-shaped locking structure as claimed in claim 1, characterized in that: The pipe sleeve is located at the end of the outer pipe and is rigidly connected thereto.

9. The portable lifting rod with a beak-shaped locking structure according to claim 1, characterized in that: The inner tube and the outer tube are respectively provided with matching limiting sliding seats and limiting steps for separation or abutment.

10. The portable lifting rod with a beak-shaped locking structure according to claim 1, characterized in that: The opposite surfaces of the inner tube and the outer tube are respectively provided with matching guide grooves and guide protrusions, the guide grooves and the guide protrusions are arranged along the moving direction of the inner tube, and the two are slidably matched.

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