Universal lifting air suction arm
By designing a universal pull-up suction arm with rotatable extension arm and lifting mechanism, the problem of the universal suction arm being unable to fold, store and height adjustment is solved, and flexible space utilization and stable suction effect are achieved.
Patent Information
- Application Number
- CN202422289875.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing universal suction arm takes up space when it is not working and cannot be folded and stored, cannot achieve height lifting and lowering, and has low flexibility, which limits its application in different height working scenarios.
A universal pull-up suction arm is designed, adopting a rotatable extension arm and support arm, combined with a lifting mechanism to achieve 180-degree rotary folding and height adjustment, and the lifting and lowering of the support plate is achieved through gear tooth plate transmission, equipped with diagonal braces and hoses to improve stability and reduce vibration.
The working scope has been expanded, which is convenient for storage and adjustment of working angles, adapts to work needs at different heights, and improves operating flexibility and stability.
Smart Images
Figure CN223171588U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of industrial smoke control, and in particular to a universal lifting suction arm. Background Art
[0002] Universal suction arm, also known as flexible suction arm, is a device that can achieve hovering at any position through the principle of two-force rod. It is widely used in the field of industrial smoke control. The connection method of the universal suction arm is fixed bracket connection, which is sealed with elastic rubber ring. The cover mouth is of various forms, including cone suction mouth, horseshoe suction mouth, plate suction mouth and top hat suction mouth. It has a variety of specifications and sizes, including different calibers and lengths, to meet different work requirements. Universal suction arm is widely used in metal processing, welding smoke, workpiece grinding, hot processing oil mist treatment, odor removal, dust removal and other industries. It is one of the important equipment to improve the quality of the working environment and protect the health of workers.
[0003] Regarding the above-mentioned related technologies, the inventor believes that some universal suction arms have a single support method for their supporting brackets. When the suction arm is not working, the extended suction arm occupies a certain working space. When the suction arm is working, it hinders the operator from performing other work. In addition, most suction arms cannot achieve a certain height of lifting movement. When facing higher or lower suction targets, they are subject to certain restrictions and have relatively low flexibility. Utility Model Content
[0004] The purpose of this application is to provide a universal lifting suction arm to improve the problems of being unable to fold and store and unable to lift and lower as a whole.
[0005] The present application provides a universal lifting suction arm, which adopts the following technical solutions:
[0006] The top of the lifting arm is fixedly provided with three supports, and the top of the three supports is fixedly connected to the extension arm. The upper end of the support arm is fixedly connected to the extension arm, and the lower end of the support arm is fixedly connected to the extension arm. The support arm and the top of the extension arm are jointly connected with three supports, and the top ends of the three supports are fixedly connected with pipes, one end of the pipe is connected with one end of the extension arm, and the outer surface of one side of the extension arm is fixedly sleeved with a suction arm, and one end of the suction arm is fixedly connected with a clamping ring. An air collecting hood is fixedly installed on one end of the suction arm.
[0007] By adopting the above technical solution, the operator applies force to the extension arm through the rotation axis by holding the extension arm, so that the extension arm rotates through the rotation axis, thereby realizing the 180-degree rotational folding movement of the extension arm. The support arm can drive the support arm to rotate through the rotation of the support axis. The operator realizes the purpose of multi-angle rotation and folding of the support arm and the extension arm through the support axis and the rotation axis. Then, the air collection hood at one end of the suction arm sucks and discharges the soot under the action of suction, thereby expanding the working range and facilitating the operator to store the suction arm.
[0008] Optionally, the lifting mechanism includes a support plate. One ends of the two connecting plates are fixedly connected to one end of the support plate. One end of the wall body is fixedly connected with a toothed plate. A gear is rotatably connected between the inner surfaces on both sides of the support plate. The outer surface of the gear is meshed with one end of the toothed plate. One end of the gear penetrates through the support plate and is fixedly sleeved with a ratchet wheel. One end of one of the connecting plates is rotatably connected with a pawl. One end of the pawl abuts against one end of the ratchet wheel. One end of the gear is fixedly sleeved with a turntable.
[0009] By adopting the above technical solution, the support plate is driven to move up and down at one end of the wall body under the transmission of the gear and the toothed plate. The ratchet wheel at one end of the gear is self-locked against the reverse rotation of the gear under the abutment of the pawl, realizing the controllable lifting movement of the bracket connected to one end of the support plate.
[0010] Optionally, one end of the support axis is fixedly connected with a diagonal brace, and one end of the diagonal brace is fixedly connected with one end of the support arm.
[0011] By adopting the above technical solution, the diagonal brace can reduce the deformation and displacement of the support arm under the action of horizontal load, improve the stability of the overall mechanism, transfer the load to other components, and improve the bearing capacity of the support arm.
[0012] Optionally, both ends of the pipeline and one end of the suction arm are fixedly sleeved with hoses, and the hoses are made of metal.
[0013] By adopting the above technical solution, the sleeved hoses are for facilitating the flexible rotation of the extension arm through the rotation axis, facilitating the connection of one end of the dust removal pipeline, and reducing the vibration generated by the pipeline during the suction and discharge process.
[0014] Optionally, the three supports are horizontally equidistantly distributed, and the three supports are all in a "U" shape.
[0015] By adopting the above technical solution, the outer surfaces of the three U-shaped supports are fitted and clamped with the outer surface of the pipeline through one end of the "U" shape, providing a certain supporting and stabilizing effect for the pipeline.
[0016] Optionally, the length of the support arm is the same as that of the extension arm, and a clamping groove is formed at one end of the extension arm, and one end of the pipeline penetrates through the clamping groove.
[0017] By adopting the above technical solution, the support arm and the extension arm of the same length are used to minimize the load on the support arm while ensuring the extended diameter, and the clamping groove at one end is used to help the pipeline be more stably connected and fixed to one end of the suction arm.
[0018] Optionally, the two sliding grooves and the two connecting plates are mirror-symmetrically distributed, and one end of the support plate is in sliding fit with the wall body.
[0019] By adopting the above technical solution, the two mirror-symmetrically distributed sliding grooves and connecting plates provide a sliding guide for the vertical movement of the support plate, making the support plate more stable during the lifting process.
[0020] Optionally, a spring is fixedly connected to the bottom end of the pawl, and one end of the spring is fixedly connected to the outer surface of the support plate.
[0021] By adopting the above technical solution, the function of the spring is to ensure that the pawl remains in contact with the ratchet, so that the pawl and the ratchet can work properly and realize the lifting self-locking function.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. By setting the extension arm in the present utility model, the bracket fixed at one end of the wall surface can realize the 180-degree rotation folding or hovering in the air of the suction arm under the action of the rotatable extension arm and the support arm, and can move freely in three-dimensional space, which is convenient for storage and adjustment of the working angle.
[0024] 2. By setting the lifting mechanism in the present utility model, the lifting movement and self-locking positioning of the support plate are realized under the cooperation of the gear and the toothed plate, and the height of the suction arm can be adjusted according to the working needs to adapt to different working scenarios and working heights. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a schematic structural diagram of the present utility model.
[0026] Figure 2 is a schematic structural diagram of another perspective of the present utility model.
[0027] Figure 3 is a schematic structural diagram of the lifting mechanism of the present utility model.
[0028] In the figure, 1 is the wall body; 2 is the lifting mechanism; 3 is the support; 11 is the chute; 12 is the connecting plate; 21 is the support plate; 22 is the gear; 23 is the toothed plate; 24 is the pawl; 25 is the ratchet; 26 is the turntable; 31 is the support shaft; 32 is the support arm; 33 is the rotating shaft; 34 is the extension arm; 35 is the support; 36 is the pipeline; 37 is the air collecting hood; 38 is the snap ring; 39 is the suction arm. Detailed implementation mode
[0029] The following is a further detailed description of the present application in conjunction with the attached Figure 1 - attached Figure 3 , and make a further detailed description of the present application.
[0030] Embodiment
[0031] A universal lifting suction arm, referring to Figure 1 , includes a wall body 1, a lifting mechanism 2, and a support 3. A toothed plate 23 is fixedly connected to the outer surface of the wall body 1. Two chutes 11 are opened on the outer surface of the wall body 1. The toothed plate 23 is located between the two chutes 11. The outer surfaces of the two mirror-image distributed chutes 11 are both slidably connected with a connecting plate 12. One end of the two connecting plates 12 is fixedly welded to one end of the lifting mechanism 2, providing a vertical upward or downward movement guide for the transmission of the lifting mechanism 2, and facilitating the lifting mechanism 2 to be more stable during the transmission process.
[0032] Referring to Figure 2 , one end of the U-shaped support 3 is rotatably connected with a support shaft 31. The upper and lower ends of the support shaft 31 are respectively rotatably connected with the upper and lower ends of the support, providing a rotation fulcrum for the support arm 32. The other end of the support 3 is fixedly welded to one end of 21. A support arm 32 is fixedly welded to the lower outer surface of the support shaft 31. A diagonal brace is fixedly welded to the upper outer surface of the support shaft 31. One end of the diagonal brace is fixedly welded to the top end of the support arm 32, helping the support arm 32 reduce the gravity borne by the support arm 32, making the connection and support of the support arm 32 more firm. One end of the support arm 32 is rotatably connected with a rotating shaft 33. An extension arm 34 is fixedly welded to the outer surface of the rotating shaft 33.
[0033] Referring to Figure 2, a pipe 36 is fixedly installed at the top of the support arm 32 and the extension arm 34 together. The support arm 32 and the extension arm 34 of the same size minimize the load on the support rod arm 32 while extending the diameter range. The three supports 35 distributed in a rectangular array are fixedly clamped to the outer surface of the pipe 36 through one end in an arc shape, providing relatively stable connection support for the pipe 36. One end of the extension arm 34 is fixedly welded with a rectangular fixing piece, and a clamping groove is formed on the outer surface of the fixing piece, which helps the pipe 36 to be more stably fixedly connected to one end of the suction arm 39 through the clamping groove. One end of the pipe 36 penetrates through the clamping groove and is fixedly sleeved with one end of the suction arm 39. A snap ring 38 is sleeved on one end of the suction arm 39, aiming to strengthen the connection tightness and sealing performance between the suction arm 39 and the pipe 36. Metal hoses are fixedly sleeved at both ends of the pipe 36 and one end of the suction arm 39. The mutually connected pipe 36 and suction arm 39 can reduce the vibration generated during suction and discharge between the pipe 36 and the suction arm 39 with the help of the metal hoses, increase the flexibility of the pipe 36 and the suction arm 39, so that the pipe 36 can bear a certain tensile force. A gas collecting hood 37 is fixedly welded at one end of the suction arm 39. The conical gas collecting hood 37 diffuses the suction force from the hood opening, so that the flue gas pollutants converge from the surrounding to the hood opening and pass through the pipe 36. The operator can adjust and fold the support arm 32 and the extension arm 34 by 180 degrees horizontally through the support shaft 31 and the rotating shaft 33.
[0034] Refer to Figure 3 , the lifting mechanism 2 includes a support plate 21 and a gear 22. Both ends of the gear 22 are rotatably connected to the inner walls on both sides of the support plate 21 through connecting shafts. One end of the connecting shaft penetrates through the support plate 21 and is fixedly sleeved with a ratchet wheel 25. One end of a pawl 24 is rotatably connected to one end of one of the chutes 11 through a shaft rod. One end of the ratchet wheel 25 is fixedly sleeved with a turntable 26 through a bolt. The toothed plate 23 at one end of the wall 1 is meshed with the outer surface of the gear 22 through the tooth grooves on the outer surface. One end of the support plate 21 is fixedly welded to the two connecting plates 11, providing reasonable connection support for the lifting of the support plate 21. The operator can drive the gear 22 to rotate by rotating the turntable 26, so that the rotating gear 22 drives the support plate 21 to move up and down through the toothed plate 23.
[0035] Refer to Figure 3 , a spring is fixedly welded to the bottom end of the pawl 24. The spring in a contracted state abuts one end of the pawl 24 against the tooth groove of the ratchet wheel 25 under the action of the tightening force, preventing the counterclockwise rotation of the ratchet wheel 25, thus realizing the rotation restriction of the gear 22 and realizing the self-locking of the support plate 21. The operator can press down one end of the pawl 24 to make the pawl 24 disengage from the ratchet wheel 25 to facilitate the downward movement of the support plate 21.
[0036] The implementation principle of the embodiments of this application is as follows: When dust suction and removal are required, the operator connects one end of the pipeline 36 to the dust removal pipeline and sucks air through the pipeline 36 and the suction arm 39. Then, the pipeline 36 is fixedly clamped by the three supports 35 at the top of the support arm 32. The suction arm 39 is connected through the pipeline 36 at one end by the snap ring 38. The extension arm 34 can be held by hand and force can be applied to the extension arm 34 through the rotating shaft 33, so that the extension arm 34 rotates through the rotating shaft 33, thereby realizing the folding movement of the extension arm 34. The support arm 32 can drive the support arm 32 to rotate through the rotation of the support shaft 31. The operator can realize the multi-angle rotation and folding of the support arm 32 and the extension arm 34 through the support shaft 31 and the rotating shaft 33. Then, the dust is sucked and discharged by the air collecting hood 37 at one end of the suction arm 39 under the action of suction. The metal hose in the suction arm 39 facilitates the operator to swing at any angle.
[0037] When the height of the suction arm 39 needs to be adjusted, the operator rotates the turntable 26, thereby driving the gear 22 to rotate. The rotating gear 22 moves through the toothed plate 23, thereby driving the support plate 21 to move up and down through the two sliding grooves 11 under the connection of the two connecting plates 12. When the support plate 21 climbs, the gear 22 drives the ratchet 25 at one end to rotate clockwise, so that the pawl 24 slides over the surface of the ratchet 25, allowing the ratchet 25 to rotate freely. When the support plate 21 stops and the gear 22 drives the ratchet 25 to rotate counterclockwise, the pawl 24 abuts and engages with the tooth groove on the outer surface of the ratchet 25 under the contraction force of the spring at the bottom, preventing the rotation of the ratchet 25, thereby realizing the restriction of the falling of the gear 22. The operator can press one end of the pawl 24 to make the pawl 24 disengage from the ratchet 25 to facilitate the downward movement of the support plate 21.
[0038] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.
Claims
1. A universal lifting suction arm, comprising a wall (1), characterized in that: One end of the wall (1) is provided with two sliding grooves (11). A connecting plate (12) is slidably connected in each of the two sliding grooves (11). One ends of the two connecting plates (12) are fixedly connected to a lifting mechanism (2) together. One end of the lifting mechanism (2) is fixedly connected to a bracket (3). One end of the bracket (3) is rotatably connected to a support shaft (31). A support arm (32) is fixedly connected to the outer surface of the lower part of the support shaft (31). One end of the support arm (32) is rotatably connected to a rotating shaft (33). An extension arm (34) is fixedly connected to the outer surface of the rotating shaft (33). Three supports (35) are jointly connected to the tops of the support arm (32) and the extension arm (34). A pipe (36) is fixedly clamped to the tops of the three supports (35). One end of the pipe (36) is connected through the one end of the extension arm (34). An air suction arm (39) is fixedly sleeved on one side outer surface of the extension arm (34). A snap ring (38) is fixedly clamped to one end of the air suction arm (39). An air collection hood (37) is fixedly installed at one end of the air suction arm (39).
2. The universal lifting suction arm according to claim 1, characterized in that: The lifting mechanism (2) includes a support plate (21). One ends of the two connecting plates (12) are fixedly connected to one end of the support plate (21) together. A toothed plate (23) is fixedly connected to one end of the wall (1). A gear (22) is rotatably connected between the inner surfaces of the two sides of the support plate (21). The outer surface of the gear (22) is meshed with one end of the toothed plate (23). One end of the gear (22) penetrates through the support plate (21) and is fixedly sleeved with a ratchet wheel (25). One end of one of the connecting plates (12) is rotatably connected to a pawl (24). One end of the pawl (24) abuts against one end of the ratchet wheel (25). A turntable (26) is fixedly sleeved on one end of the gear (22).
3. The universal lifting suction arm according to claim 1, characterized in that: One end of the support shaft (31) is fixedly connected with a diagonal brace, and one end of the diagonal brace is fixedly connected with one end of the support arm (32).
4. The universal lifting suction arm according to claim 1, characterized in that: Hoses are fixedly sleeved on both ends of the pipe (36) and one end of the air suction arm (39), and the hoses are made of metal material.
5. The universal lifting suction arm according to claim 1, characterized in that: The three supports (35) are distributed horizontally at equal intervals, and the three supports (35) are all in a "U" shape.
6. The universal lifting suction arm according to claim 1, wherein: The length of the support arm (32) is the same as that of the extension arm (34), and a clamping groove is provided at one end of the extension arm (34). One end of the pipe (36) penetrates through the clamping groove.
7. The universal lifting suction arm according to claim 2, characterized in that: The two sliding grooves (11) and the two connecting plates (12) are both mirror-symmetrically distributed, and one end of the support plate (21) is in sliding fit with the wall (1).
8. The universal lifting suction arm according to claim 2, characterized in that: A spring is fixedly connected to the bottom end of the pawl (24), and one end of the spring is fixedly connected to the outer surface of the support plate (21).