Fishing rod ladder
By designing each ladder section in the fishing rod ladder, including two horizontal support tubes and two vertical support tubes, and setting up a locking mechanism, the shaking and load-bearing reduction caused by excessive thin support tubes after the height of the fishing rod ladder is solved, and higher stiffness and load-bearing capacity are achieved, while reducing costs and failure rates.
Patent Information
- Application Number
- CN202421431344.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-21
AI Technical Summary
After the height of the fishing rod ladder increases, due to the excessive number of ladder joints and the upward support pipe is too thin, resulting in shaking and lowering load bearing.
A fishing rod ladder is designed, each ladder segment includes two vertical support tubes and at least two horizontal support tubes. The support tube of the upper ladder segment is inserted into the support tube of the lower ladder segment and is equipped with a locking mechanism to lock and unlock the ladder segment through a pin and a trigger.
Under the premise of the same overall height, fewer ladder joints are used, which reduces processing costs and failure rates, improves the stiffness and load-bearing capacity of the upward support pipe, and avoids shaking.
Smart Images

Figure CN222823163U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of climbing work tools, in particular to a fishing rod ladder. Background Art
[0002] Each ladder section of the existing fishing rod ladder is in the shape of a gate, and is composed of two vertical support tubes and a cross brace arranged on the top of the support tube. Since each ladder section has only one cross brace, the total height of the fishing rod ladder can only be increased by increasing the number of ladder sections. Since the support tubes of adjacent ladder sections are connected to each other by sockets, the increase in the number of ladder sections will cause the support tubes to become thinner as they go up, and their rigidity and strength will become smaller and smaller, resulting in the entire fishing rod ladder being easy to shake after being unfolded due to the excessive number of ladder sections, and the load-bearing capacity will also be greatly reduced. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a fishing rod ladder for solving the problem that after the height of the current fishing rod ladder is increased, the number of ladder sections is too large, the upper supporting pipe is too thin and easy to shake, and the load-bearing capacity is reduced.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0005] A fishing rod ladder comprises a plurality of ladder sections connected in sequence from bottom to top, each ladder section comprises two vertical support tubes arranged in parallel and at least two cross braces arranged between the two support tubes, one of the cross braces is connected to the top of the support tube, the support tube of the upper ladder section is inserted into the support tube of the lower ladder section, and a locking mechanism is provided between the cross brace and the support tube.
[0006] Furthermore, the locking mechanism includes a sliding sleeve fixedly connected to the outer end of the cross brace and a pin slidably connected to the outer end of the cross brace, the sliding sleeve is sleeved on the outside of the support tube, a spring is provided between the inner end of the pin and the cross brace, the outer end of the pin is inserted into a corresponding socket in the support tube, and a trigger is provided at the lower part of the cross brace for driving the pin to be pulled out of the socket; the uppermost sliding sleeve in each ladder section is fixedly connected to the support tube of the ladder section, the sliding sleeve is slidably matched with the support tube of the adjacent ladder section, and the remaining sliding sleeves in each ladder section are slidably matched with the support tube of the ladder section.
[0007] Furthermore, a vertical sliding hole is provided on the latch, the middle part of the trigger is rotatably connected to the cross brace, the upper part of the trigger is inserted into the sliding hole, and the lower part of the cross brace is provided with a notch for allowing the lower part of the trigger to pass through at a position corresponding to the trigger, the bottom of the trigger is lower than the cross brace, and the trigger is pulled upward to pull the latch out of the socket.
[0008] Furthermore, the support tubes of adjacent ladder sections are clearance-fitted, a plug cover is fixedly provided at the bottom of the support tube, the plug cover is slidingly fitted with the adjacent support tube, and a locking pin is fixedly provided on the side wall of the support tube near the top, and the locking pin is inserted into the gap between two adjacent support tubes.
[0009] Furthermore, the horizontal brace at the top of the upper ladder section is a top brace, and the top brace is fixedly connected to the corresponding support pipe.
[0010] Furthermore, the horizontal support at the lower part of the lower ladder section is a bottom support, and the bottom support is fixedly connected to the corresponding support pipe.
[0011] Furthermore, it also includes a tray for placing tools or materials, which is arranged on the cross brace. The tray includes a tray body and a clamping claw fixedly arranged at the bottom of the tray body, and the clamping claw is clamped on the cross brace.
[0012] The positive effects of the utility model are:
[0013] 1. The utility model is provided with two cross braces on each ladder section. Under the premise of the same total height, the utility model can use fewer ladder sections and fewer pipe material specifications for making ladder sections. Therefore, the upper support pipe can be relatively thicker, so that the rigidity is better, the load-bearing capacity is greater, and it is not easy to shake. At the same time, due to the reduction in the number of ladder sections, the processing cost can be reduced and the failure rate can be reduced.
[0014] 2. The cross brace and the support tube are locked by a latch and unlocked by a trigger. Simply press the trigger at the bottom, and the upper ladder sections will be gathered together in sequence, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the appearance of the utility model after being unfolded;
[0016] Figure 2 It is a schematic diagram of the connection structure of two adjacent ladder sections after the utility model is unfolded;
[0017] Figure 3 It is a schematic diagram of the appearance of the utility model after being folded;
[0018] Figure 4 It is an expanded view of the utility model after adding a tray;
[0019] Figure 5 is a side view of the tray;
[0020] Figure 6 yes Figure 5 A top view of
[0021] In the figure:
[0022] 1. Support tube; 2. Horizontal support; 3. Sliding sleeve; 4. Trigger; 5. Top support; 6. Bottom support; 7. Plug; 8. Spring; 9. Sleeve; 10. Latch; 11. Notch; 12. Plug cover; 13. Lock pin; 14. Tray; 15. Tray body; 16. Claw. DETAILED DESCRIPTION
[0023] Example 1
[0024] like Figures 1 to 3 As shown, a fishing rod ladder includes three ladder sections connected in sequence from bottom to top, each ladder section includes two vertical support tubes 1 arranged in parallel and two cross braces 2 arranged between the two support tubes 1, one of the cross braces 2 is connected to the top of the support tube 1, the support tube 1 of the upper ladder section is inserted into the support tube 1 of the lower ladder section, and a locking mechanism is provided between the cross brace 2 and the support tube 1.
[0025] The cross brace 2 at the top of the upper ladder section is a top brace 5, and the two ends of the top brace 5 are respectively fixedly connected to the corresponding support pipe 1. The cross brace 2 at the lower part of the lower ladder section is a bottom brace 6, and the two ends of the bottom brace 6 are respectively fixedly connected to the corresponding support pipe 1.
[0026] The locking mechanism comprises a sliding sleeve 3 fixedly connected to the outer end of the cross brace 2, wherein the cross brace 2 is fixedly connected to a sleeve 9 at the outer end thereof, a plug 7 is fixedly arranged at the inner end of the sleeve 9, a latch 10 is slidably connected inside the sleeve 9, and the sliding sleeve 3 is sleeved outside the support tube 1. The outer end of the cross brace 2 is fixedly connected to a sleeve 9, a transverse latch 10 is slidably connected inside the sleeve 9, a plug 7 is fixedly connected to the inner end of the sleeve 9, and a spring is arranged between the inner end of the latch 10 and the plug 7. The outer end of the latch 10 is slidably matched with the sleeve 9, and the outer end of the latch 10 is inserted into the corresponding jack on the support tube 1, and a trigger 4 is arranged at the lower part of the cross brace 2. The sliding sleeve 3 at the uppermost end of each ladder section is fixedly connected to the support tube 1 of the ladder section, and the sliding sleeve 3 is slidably matched with the support tube 1 of the adjacent ladder section, and the remaining sliding sleeves 3 in each ladder section are slidably matched with the support tube 1 of the ladder section.
[0027] A vertical sliding hole is provided on the latch 10, the middle part of the trigger 4 is rotatably connected to the sleeve 9, the upper part of the trigger 4 is inserted into the sliding hole, the upper part of the trigger 7 is spherical, and the lower part is inclined outward, the lower part of the cross brace 2 and the lower part of the sleeve 9 are provided with a notch 11 for the lower part of the trigger 4 to pass through at a position corresponding to the trigger 4, the bottom of the trigger 4 is lower than the cross brace 2, and the trigger 4 is pulled upward, and the latch 10 is pulled out of the socket.
[0028] When the trigger 4 corresponding to the lower cross brace 2 is pressed upward, the corresponding latch 10 is pulled out from the corresponding support tube 1, and the upper ladder section falls downward under the action of gravity, and the trigger 4 on it hits the lower cross brace 2, so that each ladder section is pressed as shown in the figure. Figure 3 Fold as shown.
[0029] Under the premise of the same total height, the utility model can use fewer steps, so the upper support pipe 1 can be relatively thicker, so as to have better rigidity, greater load-bearing capacity, and less prone to shaking. At the same time, due to the reduced number of steps, the processing cost can be reduced and the failure rate can be reduced.
[0030] Example 2
[0031] The difference between this embodiment and embodiment 1 is that:
[0032] The support tubes 1 of adjacent ladder sections are clearance-fitted, a plugging cover 12 is fixedly provided at the bottom of the support tube 1, and the plugging cover 12 is slidingly fitted with the adjacent support tube 1. A locking pin 13 is fixedly provided on the side wall of the support tube 1 near the top, and the locking pin 13 is inserted into the gap between two adjacent support tubes 1.
[0033] When the cross brace 2 is pulled upward, if the latch pin is not inserted into the corresponding support tube 1 for some reason, the support tube 1 is limited by the blocking cover 12 and the locking pin 13 to prevent the support tube 1 from being pulled out.
[0034] Example 3
[0035] like Figures 4 to 6 As shown, the difference between this embodiment and embodiment 1 is that:
[0036] The top support 5 is provided with a tray 14, and the tray 14 includes a tray body 15 and a pair of claws 16 fixedly arranged at the bottom of the tray body 15, and the claws 16 are clamped on the cross support 2. Tools or materials required for operation can be placed on the tray body 15 to facilitate operation. The above-mentioned embodiment description is relatively detailed and specific, expressing the preferred embodiment of the utility model, which is only used to illustrate the technical ideas and features of the utility model, and its purpose is to enable technicians in this field to understand the content of the utility model and implement it accordingly, but it is not limited to the utility model, and the patent scope of the utility model cannot be limited only by this embodiment, that is, all equivalent changes or modifications made to the spirit disclosed by the utility model, for researchers or technicians in this field, within the structure of the utility model, local improvements within the system and changes and conversions between subsystems, etc., are still within the patent scope of the utility model.
Claims
1. A fishing rod ladder, characterized in that: The invention comprises a plurality of ladder sections connected in sequence from bottom to top, each ladder section comprising two vertical support tubes (1) arranged in parallel and at least two cross braces (2) arranged between the two support tubes (1), one of the cross braces (2) being connected to the top of the support tube (1), the support tube (1) of the upper ladder section being inserted into the support tube (1) of the lower ladder section, a locking mechanism being provided between the cross brace (2) and the support tube (1); the locking mechanism comprising a sliding sleeve (3) fixedly connected to the outer end of the cross brace (2) and a latch (10) slidably connected to the outer end of the cross brace (2), The sliding sleeve (3) is sleeved on the outside of the support tube (1), a spring (8) is provided between the inner end of the latch pin (10) and the cross brace (2), the outer end of the latch pin (10) is inserted into a corresponding insertion hole of the support tube (1), and a trigger (4) for driving the latch pin (10) to be pulled out of the insertion hole is provided at the lower part of the cross brace (2); the sliding sleeve (3) at the uppermost end of each ladder section is fixedly connected to the support tube (1) of the ladder section, the sliding sleeve (3) is slidably matched with the support tube (1) of the adjacent ladder section, and the remaining sliding sleeves (3) in each ladder section are slidably matched with the support tube (1) of the ladder section.
2. A fishing rod ladder according to claim 1, characterized in that: The latch (10) is provided with a vertical sliding hole, the middle portion of the trigger (4) is rotatably connected to the cross brace (2), the upper portion of the trigger (4) is inserted into the sliding hole, the lower portion of the cross brace (2) is provided with a notch (11) at a position corresponding to the trigger (4) for allowing the lower portion of the trigger (4) to pass through, the bottom of the trigger (4) is lower than the cross brace (2), and the latch (10) is pulled out of the insertion hole when the trigger (4) is pulled upward.
3. A fishing rod ladder according to claim 1, characterized in that: The support tubes (1) of adjacent ladder sections are clearance-fitted, a plugging cover (12) is fixedly provided at the bottom of the support tube (1), the plugging cover (12) is slidingly fitted with the adjacent support tube (1), and a locking pin (13) is fixedly provided on the side wall of the support tube (1) near the top, and the locking pin (13) is inserted into the gap between two adjacent support tubes (1).
4. A fishing rod ladder according to claim 1, characterized in that: The horizontal support (2) at the top of the upper ladder section is a top support (5), and the top support (5) is fixedly connected to the corresponding support tube (1).
5. A fishing rod ladder according to claim 1, characterized in that: The horizontal support (2) at the lower part of the lower ladder section is a bottom support (6), and the bottom support (6) is fixedly connected to the corresponding support tube (1).
6. A fishing rod ladder according to claim 1, characterized in that: It also includes a tray (14) arranged on the cross brace (2) for placing tools or materials, the tray (14) including a tray body (15) and a clamping claw (16) fixedly arranged at the bottom of the tray body (15), and the clamping claw (16) is clamped on the cross brace (2).