Safe insulating extension ladder with automatic connecting piece
By designing a clamping mechanism for automatic connectors in the insulated telescopic ladder, the problem of unstable in the insulated ladder when used on the telephone pole in the prior art is solved, and higher connection stability and operation safety are achieved.
Patent Information
- Application Number
- CN202421346211.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-13
AI Technical Summary
When existing telescopic insulating ladders are used on telephone poles, the point contact between the crossbar and the telephone pole is easily tilted, resulting in instability.
A safety-type insulated telescopic ladder with automatic connections is designed, and the clamping connection of the electric pole is achieved by providing a clamping mechanism, using the hinge structure of the first and second link rods and the meshing of the gears and racks.
Through the design of the clamping mechanism, the contact area between the device and the telephone pole is increased, and the upper end of the insulated folding ladder is fixed on the surface of the telephone pole, which improves the connection stability and ensures the safety of the staff's work.
Smart Images
Figure CN222649917U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of insulating ladders, in particular to a safe insulating telescopic ladder with an automatic connecting piece. Background Art
[0002] An insulated telescopic ladder is a specially designed ladder used for working in an environment that requires insulation protection. It is usually used in the power industry or other workplaces that need to prevent electric shock. This ladder can be extended and retracted as needed to adapt to work at different heights. Its design can effectively prevent current from being conducted through the ladder and ensure the safety of workers.
[0003] In the prior art, the horizontal bar of the telescopic insulating ladder is generally in the shape of a strip. When the operator climbs the electric pole, the horizontal bar at the top of the ladder is in point contact with the electric pole due to the arc-shaped surface of the electric pole, which makes it easy to topple over.
[0004] Therefore, it is necessary to provide a safe insulating telescopic ladder with an automatic connector to solve the above technical problems. Utility Model Content
[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a safe insulating telescopic ladder with an automatic connector, which can improve the connection stability between the ladder and the utility pole.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0007] A safety insulating telescopic ladder with an automatic connector comprises: a clamping mechanism and a main body mechanism, wherein the clamping mechanism is located at the upper end of the main body mechanism, the main body mechanism comprises a ladder body, a cross bar is provided on the ladder body, and a ladder foot is provided at the lower end of the ladder body, the clamping mechanism comprises a first chain rod and a second chain rod, one end of the first chain rod and the second chain rod are respectively hinged on a fixed plate, and the other end is fixedly connected to a connecting plate, a clamping block is provided on the connecting plate, one end of the first chain rod is a gear, a rack is slidably provided on the upper end of the fixed plate, the rack is meshed with the gear, and a pressure block is provided on the rack near one end of the first chain rod and the second chain rod.
[0008] Preferably, a fixing component is provided at the lower end of the ladder body, and the fixing component includes an outer shell, a second spring is installed at the upper end of the inner wall of the outer shell, and a sleeve is fixedly connected to the lower end of the second spring. The sleeve is a cylindrical structure, and the sleeve is slidably connected to the inner wall of the outer shell. A locking ring is provided on the periphery of the sleeve, and the inner wall and outer wall of the locking ring are both provided with threads. The outer wall of the sleeve and the lower end of the inner wall of the outer shell are both provided with threads compatible with the locking ring, and a pointed end is provided at the lower end of the sleeve.
[0009] Preferably, the fixing plate is hinged to the crossbar at the uppermost end of the ladder body, and bolts are installed at the lower end of the crossbar.
[0010] Preferably, a through hole is formed on the fixing plate, a sliding rod is slidably installed in the through hole, a first spring is provided between one end of the sliding rod and the side wall of the fixing plate, and the other end of the sliding rod is connected to the pressing block.
[0011] Preferably, a foot pad is provided at the lower end of the ladder foot, the foot pad is made of plastic, the interior of the foot pad is a cavity, and the foot pad can be detachably mounted on the ladder foot.
[0012] Preferably, an anti-slip layer is provided at the lower end of the clamping block.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] (1) The utility model realizes the clamping and connecting effect of the insulating folding ladder to the electric pole by providing a clamping mechanism. Compared with the existing method of directly leaning on the electric pole, the clamping mechanism not only increases the contact area between the device and the electric pole, but also fixes the upper end of the insulating folding ladder to the surface of the electric pole, thereby ensuring the safety of the workers;
[0015] (2) The utility model provides a fixing assembly that is first installed on an uneven ground to achieve the effect of stably placing the device, and at the same time, the tip pierces the ground to enhance the connection reliability between the device and the ground, making it more stable when used by workers;
[0016] (3) The utility model can hinge the fixing plate and the ladder crossbar to facilitate the backward flipping of the clamping mechanism after use or in other use environments, without affecting the normal use of the device in other use environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic diagram of the structure of a safety insulating telescopic ladder with an automatic connector provided by the utility model;
[0018] Figure 2 A schematic structural diagram of a first-view diagram of a clamping mechanism for a safety-type insulating telescopic ladder with an automatic connector provided by the utility model;
[0019] Figure 3 A structural schematic diagram of a second viewing angle of a clamping mechanism of a safety insulating telescopic ladder with an automatic connector provided by the utility model;
[0020] Figure 4 A schematic diagram of the structure of the main body of the safety insulated telescopic ladder with automatic connector provided by the utility model;
[0021] Figure 5 The utility model is a cross-sectional view of a fixing assembly of a safety insulating telescopic ladder with an automatic connector provided by the utility model.
[0022] Among them, the names corresponding to the figure numbers are: 100, clamping mechanism; 101, first link; 102, second link; 103, fixed plate; 104, connecting plate; 105, clamping block; 106, pressure block; 107, rack; 108, sliding rod; 109, first spring; 200, main mechanism; 201, ladder body; 202, cross bar; 203, ladder foot; 204, foot pad; 205, outer shell; 206, second spring; 207, sleeve; 208, locking ring; 209, tip; 210, bolt. DETAILED DESCRIPTION
[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.
[0024] First embodiment:
[0025] like Figure 1-3 As shown, the utility model provides a safety insulating telescopic ladder with an automatic connector, including: a clamping mechanism 100 and a main body mechanism 200. The function of the clamping mechanism 100 is to clamp the electric pole and connect with the device at the same time. The main part of the main body mechanism 200 is the folding insulating ladder itself of the prior art. The clamping mechanism 100 is installed at the uppermost end of the main body mechanism 200. Specifically, the main body mechanism 200 includes a ladder body 201, which is the folding insulating ladder part. The ladder body 201 is provided with a cross bar 202. The ladder body 201 is provided with a ladder foot 203 at the lower end. The ladder foot 203 is the part of the lower end of the insulating ladder that contacts the ground. The clamping mechanism 100 includes a first chain rod 101 and a second chain rod 102. One end of the first chain rod 101 and the second chain rod 102 are respectively hinged on the fixing plate 103, and the other end is fixedly connected to a connecting plate 104. The connecting plate 104 is provided with a cross bar 202. There is a clamping block 105, one end of the first chain rod 101 is a gear, and a rack 107 is slidably provided on the upper end of the fixed plate 103, and the rack 107 is meshed with the gear, wherein the rack 107 is slidably connected to the fixed plate 103 in the following manner: a through hole is opened on the fixed plate 103, and a sliding rod 108 is slidably installed in the through hole, a first spring 109 is provided between one end of the sliding rod 108 and the side wall of the fixed plate 103, and the other end of the sliding rod 108 is connected to a pressing block 106, and a pressing block 106 is provided at one end of the rack 107 near the first chain rod 101 and the second chain rod 102, and the pressing block 106 and the clamping block 105 are both arc-shaped. When in use, the insulating folding ladder is first extended, and then leaned against the electric pole, and the pressing block 106 contacts the outer wall of the electric pole. Under the action of the deadweight of the insulating folding ladder, the insulating folding ladder applies pressure to the electric pole through the pressing block 106, and at the same time, the electric pole reacts and the pressing block 106 with thrust, such as Figure 3As shown, the pressing block 106 moves backward, and during the movement, the pressing block 106 pushes the rack 107 to move relative to the gear, and then the gear rotates, causing the first chain rod 101 to rotate, while driving the connecting plate 104 and the clamping block 105 to rotate. The clamping block 105 as a whole is tightened inward, so that the clamping block 105 is clamped on the electric pole. When the staff climbs onto the insulating folding ladder, the insulating folding ladder exerts a greater pressure on the electric pole, and the electric pole also exerts a greater thrust on the insulating folding ladder, so the clamping block 105 is clamped tighter.
[0026] By setting up the clamping mechanism 100, the clamping connection effect of the insulating folding ladder on the utility pole is achieved. Compared with the existing method of directly leaning on the utility pole, the clamping mechanism 100 not only increases the contact area between the device and the utility pole, but also fixes the upper end of the insulating folding ladder to the surface of the utility pole, thereby ensuring the working safety of the workers.
[0027] Second embodiment:
[0028] like Figure 4-5 As shown, a fixing assembly is provided at the lower end of the ladder body 201, and the fixing assembly includes a shell 205, a second spring 206 is installed at the upper end of the inner wall of the shell 205, and a sleeve 207 is fixedly connected to the lower end of the second spring 206. The sleeve 207 is a cylindrical structure, and the upper outer wall of the sleeve 207 and the inner wall of the upper part of the shell 205 are smooth. The sleeve 207 is slidably connected to the inner wall of the shell 205, and a locking ring 208 is provided on the periphery of the sleeve 207. The locking ring 208 has a certain thickness, and the thickness is the same as the spacing between the sleeve 207 and the shell 205. The inner wall and the outer wall of the locking ring 208 are both provided with threads throughout the length, and the outer wall of the sleeve 207 and the lower end of the inner wall of the shell 205 are provided with screw threads adapted to the locking ring 208. The lower end of the sleeve 207 is provided with a tip 209, and the tip 209 is an anchor thorn installed on the sleeve 207. The use environment of the insulating folding ladder is relatively complex, and the ground in some use environments is uneven. At this time, the device is supported on the ground. First, the tip 209 contacts the ground and uses its anchor thorn to penetrate below the ground. Then, under the action of the deadweight of the insulating folding ladder, the second spring 206 is compressed by the sleeve 207 moving upward. At this time, the staff can lift the lower side of the device upward to make the left and right sides of the insulating folding ladder on the same horizontal plane, and then use the locking ring 208 to rotate upward into the gap between the sleeve 207 and the shell 205 to constrain the relative movement of the shell 205 and the sleeve 207.
[0029] By setting the fixing assembly, the device is first placed on the uneven ground to achieve the effect of stably placing the device, and at the same time, the tip 209 penetrates the ground to enhance the connection reliability between the device and the ground, which is more stable when used by the staff.
[0030] Third embodiment:
[0031] like Figure 1 , Figure 4 As shown, the fixing plate 103 is hinged to the uppermost crossbar 202 of the ladder body 201, and bolts 210 are installed at the lower end of the crossbar 202. The bolts 210 simultaneously connect and constrain the crossbar 202 and the fixing plate 103 at the upper end of the crossbar 202. The clamping mechanism 100 flips backwards when subjected to thrust.
[0032] By hingedly connecting the fixing plate 103 with the ladder body 201 and the cross bar 202, the clamping mechanism 100 can be easily flipped backwards after the device is used or in other use environments, without affecting the normal use of the device in other use environments.
[0033] Fourth embodiment:
[0034] like Figure 4-5 As shown, a foot pad 204 is provided at the lower end of the ladder foot 203. The foot pad 204 is made of plastic and has a cavity inside. The foot pad 204 can be detachably mounted on the ladder foot 203. The inner diameter of the lower half of the foot pad 204 is smaller than the inner diameter of the upper half. The lower half of the foot pad 204 is used to support the device and contact the ground, and the inner diameter of the upper half of the foot pad 204 is the same as the outer diameter of the ladder foot 203.
[0035] The fixing assembly is protected by providing a detachably connected foot pad 204 to prevent the tip 209 of the fixing assembly from contacting objects in the external environment and causing damage. When the fixing assembly part needs to be used, the foot pad 204 is removed and the lower part of the fixing assembly contacts the ground.
[0036] Fifth embodiment:
[0037] The lower end of the clamping block (105) is provided with an anti-skid layer, which can be made of a rubber pad. The lower end of the rubber pad is set to be serrated. When the clamping block (105) at the upper end of the device contacts a flat or strip-shaped object such as a guardrail, a transformer, etc., the friction coefficient between the contact surface of the cross bar 202 and the supporting object can be increased by setting the rubber pad, thereby making the device more stable during operation.
[0038] When in use, the insulating folding ladder is first extended, and then leaned against the electric pole, the pressing block 106 contacts the outer wall of the electric pole, and under the action of the deadweight of the insulating folding ladder, the insulating folding ladder applies pressure to the electric pole through the pressing block 106, and at the same time, the electric pole reacts with the pressing block 106 to thrust, such as Figure 3 As shown, the pressing block 106 moves backward. During the movement, the pressing block 106 pushes the rack 107 to move relative to the gear. Then the gear rotates, causing the first chain rod 101 to rotate, while driving the connecting plate 104 and the clamping block 105 to rotate. The clamping block 105 as a whole is tightened inward, so that the clamping block 105 is clamped on the electric pole.
[0039] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.
Claims
1. A safe insulated telescopic ladder with an automatic connector, characterized in that: include: A clamping mechanism (100) and a main body mechanism (200), wherein the clamping mechanism (100) is located at the upper end of the main body mechanism (200), the main body mechanism (200) comprises a ladder body (201), a cross bar (202) is provided on the ladder body (201), a ladder foot (203) is provided at the lower end of the ladder body (201), and the clamping mechanism (100) comprises a first chain rod (101) and a second chain rod (102), wherein the first chain rod (101) and the second chain rod One end of each of the two chain links (102) is hinged on a fixed plate (103), and the other end is fixedly connected to a connecting plate (104), a clamping block (105) is provided on the connecting plate (104), one end of the first chain link (101) is a gear, a rack (107) is slidably provided on the upper end of the fixed plate (103), the rack (107) is meshed with the gear, and a pressing block (106) is provided on one end of the rack (107) close to the first chain link (101) and the second chain link (102).
2. The safety insulating telescopic ladder with automatic connector according to claim 1, characterized in that: A fixing assembly is provided at the lower end of the ladder body (201), and the fixing assembly includes a shell (205). A second spring (206) is installed at the upper end of the inner wall of the shell (205). A sleeve (207) is fixedly connected to the lower end of the second spring (206). The sleeve (207) is a cylindrical structure. The sleeve (207) is slidably connected to the inner wall of the shell (205). A locking ring (208) is provided on the periphery of the sleeve (207). Both the inner wall and the outer wall of the locking ring (208) are provided with threads. The outer wall of the sleeve (207) and the lower end of the inner wall of the shell (205) are provided with threads that are compatible with the locking ring (208). A tip (209) is provided at the lower end of the sleeve (207).
3. The safety insulating telescopic ladder with automatic connector according to claim 1, characterized in that: The fixing plate (103) is hinged to the uppermost crossbar (202) of the ladder body (201), and a bolt (210) is installed at the lower end of the crossbar (202).
4. The safety insulating telescopic ladder with automatic connector according to claim 1, characterized in that: The fixed plate (103) is provided with a through hole, in which a slide rod (108) is slidably installed, a first spring (109) is provided between one end of the slide rod (108) and the side wall of the fixed plate (103), and the other end of the slide rod (108) is connected to the pressing block (106).
5. The safety insulating telescopic ladder with automatic connector according to claim 1, characterized in that: A foot pad (204) is provided at the lower end of the ladder foot (203). The foot pad (204) is made of plastic material. The interior of the foot pad (204) is a cavity. The foot pad (204) can be detachably sleeved on the ladder foot (203).
6. The safety insulating telescopic ladder with automatic connector according to claim 1, characterized in that: The lower end of the clamping block (105) is provided with an anti-slip layer.