CN220596986U - Lower arm fixing device - Google Patents
Lower arm fixing device Download PDFInfo
- Publication number
- CN220596986U CN220596986U CN202322284102.8U CN202322284102U CN220596986U CN 220596986 U CN220596986 U CN 220596986U CN 202322284102 U CN202322284102 U CN 202322284102U CN 220596986 U CN220596986 U CN 220596986U
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- Prior art keywords
- lower arm
- clamping
- clamping seat
- seat
- tightening
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 229910000619 316 stainless steel Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Clamps And Clips (AREA)
Abstract
The utility model belongs to the field of overhead working trucks, and discloses a lower arm fixing device, which comprises a supporting device for being arranged on the overhead working truck to lift and support a lower arm, and further comprises a clamping device hinged to the top of the supporting device and used for rotating and tightly attaching to the bottom surface of the lower arm and clamping the lower arm from two sides, wherein the front side and the rear side of the clamping device are provided with fastening devices for tightening and self-locking and tightening the lower arm from the upper side; the clamping device comprises a clamping seat, a rotating lug is arranged below the clamping seat, two fastening bolts are symmetrically arranged on two sides of the rotating lug, two clamping plates are symmetrically arranged on two sides of the clamping seat, and the clamping plates are in sliding connection with the clamping seat. According to the lower arm fixing device, the lower arm of the overhead working truck is hooped from the upper side, so that the fixing effect is improved; the fixing effect is further improved through the arrangement of rotating and tightly attaching to the bottom surface of the lower arm; the lower arm is conveniently fixed through the setting of tightening the self-locking.
Description
Technical Field
The utility model belongs to the field of overhead working trucks, and particularly relates to a lower arm fixing device.
Background
The aerial working vehicle is a special vehicle for transporting workers and using equipment to the site and carrying out aerial working, the boom of the aerial working vehicle is composed of an upper boom section and a lower boom section, a balance pull rod is usually arranged at the lower side of the lower boom, and when the boom is fixed, most manufacturers only fix and strengthen the upper boom because the lower boom is difficult to bypass by the pull rod. When the vehicle runs at a high speed, the lower arm can shake, so that the running safety of the whole vehicle is seriously influenced, and irreparable loss is directly caused to the whole vehicle and even the human body of a driver.
The patent in China with the publication number CN210710630U is contrasted and granted, a lower arm fixing device for an overhead working truck is disclosed, which comprises: base, jacking jar, backup pad and limiting plate, the recess has been seted up at the base top, the recess bottom is provided with a plurality of buffer spring, and is a plurality of buffer spring top is provided with the movable seat, the movable seat top sets up the jacking jar, the jacking jar top has the jacking pole, the jacking pole top sets up the backup pad, the spout has all been seted up to backup pad top left and right sides, the backup pad outer wall is located the spout and all is provided with the shrouding, backup pad top left and right sides all sets up the limiting plate, the limiting plate bottom all is provided with the slider, the slider is inlayed at the spout inner chamber, all be connected with adjusting screw on the slider, adjusting screw stretches out shrouding external connection has the handle, the limiting plate inboard all is provided with the buffering cushion.
The lower arm of the overhead working truck is clamped and fixed from two sides, the lower arm cannot be limited to move up and down, and the fixing effect is poor. A new device is thus designed.
Disclosure of Invention
The present utility model is directed to a lower arm fixing device, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the lower arm fixing device comprises a supporting device for being installed on an overhead working truck to lift and support a lower arm, and further comprises a clamping device hinged to the top of the supporting device and used for rotating to be tightly attached to the bottom surface of the lower arm and clamping the lower arm from two sides, wherein the front side and the rear side of the clamping device are provided with fastening devices for tightening back self-locking and tightening the lower arm from the upper side;
the clamping device comprises a clamping seat, a rotating lug is arranged below the clamping seat, two fastening bolts are symmetrically arranged on two sides of the rotating lug, two clamping plates are symmetrically arranged on two sides of the upper surface of the clamping seat, the clamping plates are in sliding connection with the clamping seat, a positive and negative threaded screw rod is arranged between the two clamping plates, and a motor is arranged on one side of the positive and negative threaded screw rod;
the fastening device comprises a fixing seat, a tightening belt is arranged on the fixing seat, a clamping seat is arranged at one end, far away from the fixing seat, of the tightening belt, a toothed plate is arranged in the clamping seat in a sliding mode, a connecting rod is arranged on one side of the toothed plate, a spring is arranged between the connecting rod and the clamping seat, and pull rings are arranged on one side, far away from the toothed plate, of the connecting rod.
Further: the supporting device comprises a base, a plurality of mounting lugs are arranged on the periphery of the base, an electric push rod is arranged at the center position of the base, and a mounting rack is arranged above the electric push rod.
Further: the splint adopts 316 stainless steel material, two splint opposite surfaces are provided with silica gel friction layer.
Further: the front and back threaded screw rod is made of 45# steel, and an antirust oil layer is coated on the surface of the front and back threaded screw rod.
Further: the tightening belt is characterized in that a friction layer is arranged on the upper surface of the tightening belt, and a silica gel buffer layer is arranged on the lower surface of the tightening belt.
Further: the mounting lugs are arranged in four, and the mounting lugs and the base are integrally formed.
Compared with the prior art, the utility model has the beneficial effects that:
the fixing effect is improved by tightening the lower arm of the overhead working truck from above;
the fixing effect is further improved through the arrangement of rotating and tightly attaching to the bottom surface of the lower arm;
the lower arm is conveniently fixed through the setting of tightening the self-locking.
Drawings
FIG. 1 is a schematic view of a lower arm fixing device according to the present utility model;
FIG. 2 is an isometric view of a support device for a lower arm attachment device according to the present utility model;
FIG. 3 is an isometric view of a clamping device of a lower arm fixture according to the present utility model;
fig. 4 is a front view of a fastening device of a lower arm fixing device according to the present utility model.
In the reference numerals: 1. a support device; 101. a base; 102. a mounting ear; 103. an electric push rod; 104. a mounting frame; 2. a clamping device; 201. a clamping seat; 202. rotating the ear; 203. a fastening bolt; 204. a clamping plate; 205. a front and back threaded screw rod; 206. a motor; 3. a fastening device; 301. a fixing seat; 302. tightening the belt; 303. a clamping seat; 304. a toothed plate; 305. a connecting rod; 306. a spring; 307. and (5) a pull ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, a lower arm fixing device comprises a supporting device 1 for being installed on an overhead working truck to lift and support a lower arm, and further comprises a clamping device 2 hinged to the top of the supporting device 1 and used for rotating to be tightly attached to the bottom surface of the lower arm and clamping the lower arm from two sides, and a fastening device 3 arranged on the front side and the rear side of the clamping device 2 and used for tightening back and self-locking and tightening the lower arm from the upper side.
In this embodiment: the supporting device 1 comprises a base 101, four mounting lugs 102 are arranged on the periphery of the base 101, an electric push rod 103 is arranged at the central position on the base 101, a mounting frame 104 is arranged above the electric push rod 103, the mounting lugs 102 and the base 101 are integrally formed, the base 101 is mounted below a lower arm of the overhead working truck through the mounting lugs 102, and the electric push rod 103 stretches to drive the mounting frame 104 to move downwards to support the lower arm to be fixed;
in this embodiment: the clamping device 2 comprises a clamping seat 201, a rotating lug 202 is arranged below the clamping seat 201, two fastening bolts 203 are symmetrically arranged on two sides of the rotating lug 202, two clamping plates 204 are symmetrically arranged on two sides of the upper surface of the clamping seat 201, the clamping plates 204 are in sliding connection with the clamping seat 201, a front and back threaded screw rod 205 is arranged between the two clamping plates 204, a motor 206 is arranged on one side of the front and back threaded screw rod 205, the clamping plates 204 are made of 316 stainless steel, a silica gel friction layer is arranged on the opposite surface of the two clamping plates 204, the front and back threaded screw rod 205 is made of 45# steel, an anti-rust oil layer is coated on the surface of the front and back threaded screw rod 205, the electric push rod 103 extends to drive the clamping seat 201 to move upwards through a mounting frame 104 and the rotating lug 202, meanwhile, the upper surface of the electric push rod is tightly attached to the lower surface of a lower arm of the overhead working truck by hinging the center around the rotating lug 202 and the mounting frame 104, the fastening bolts 203 are screwed to fix the angle of the clamping seat 201, and the motor 206 drives the front and back threaded screw rod 205 to rotate to push the clamping plates 204 to move relatively to clamp the lower arms from two sides;
in this embodiment: the fastening device 3 comprises a fixing seat 301, a tightening band 302 is arranged on the fixing seat 301, a clamping seat 303 is arranged at one end, far away from the fixing seat 301, of the tightening band 302, a toothed plate 304 is arranged in the clamping seat 303 in a sliding mode, a connecting rod 305 is arranged on one side of the toothed plate 304, a spring 306 is arranged between the connecting rod 305 and the clamping seat 303, a pull ring 307 is arranged on one side, far away from the toothed plate 304, of the two connecting rods 305, a friction layer is arranged on the upper surface of the tightening band 302, a silica gel buffer layer is arranged on the lower surface of the tightening band 302, the pull ring 307 is pulled to drive the toothed plate 304 to loosen the tightening band 302 through the connecting rod 305 and take the tightening band 302 out of the clamping seat 303, after a lower arm is clamped, the tightening band 302 is reinserted into the clamping seat 303 from above the lower arm and is tightened under the support of the fixing seat 301, the toothed plate 304 is pushed by the spring 306 to press the tightening band 302, and the tightening band 302 is automatically locked from above.
Working principle: the base 101 is arranged below the lower arm of the overhead working truck through the mounting lug 102, the pull ring 307 is pulled to drive the toothed plate 304 to loosen the tightening band 302 through the connecting rod 305 and take the tightening band 302 out of the clamping seat 303, the electric push rod 103 stretches to drive the clamping seat 201 to move upwards through the mounting frame 104 and the rotating lug 202, meanwhile, the clamping seat 201 is rotated around the hinging center of the rotating lug 202 and the mounting frame 104 to enable the upper surface of the clamping seat 201 to be tightly attached to the lower arm lower surface, the fastening bolt 203 is screwed to fix the clamping seat 201 in an angle, the motor 206 drives the positive and negative thread lead screw 205 to rotate to push the clamping plate 204 to clamp the lower arm from two sides in a relative motion, then the tightening band 302 is reinserted into the clamping seat 303 from the upper side of the lower arm and is tightened under the support of the fixing seat 301, and the spring 306 pushes the toothed plate 304 to tightly press the tightening band 302 to automatically lock the tightening band 302 and tightly the lower arm of the overhead working truck from the upper side.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Lower arm fixing device, including being used for installing support device (1) of upper lift support lower arm on the overhead working truck, its characterized in that: the clamping device (2) is hinged to the top of the supporting device (1) and used for rotating and tightly adhering to the bottom surface of the lower arm and clamping the lower arm from two sides, and the fastening device (3) is arranged on the front side and the rear side of the clamping device (2) and used for self-locking after tightening and tightening the lower arm from the upper side;
the clamping device (2) comprises a clamping seat (201), a rotating lug (202) is arranged below the clamping seat (201), two fastening bolts (203) are symmetrically arranged on two sides of the rotating lug (202), two clamping plates (204) are symmetrically arranged on two sides of the clamping seat (201), the clamping plates (204) are in sliding connection with the clamping seat (201), a positive and negative threaded screw rod (205) is arranged between the two clamping plates (204), and a motor (206) is arranged on one side of the positive and negative threaded screw rod (205);
the fastening device (3) comprises a fixing seat (301), a tightening belt (302) is arranged on the fixing seat (301), one end of the tightening belt (302) away from the fixing seat (301) is provided with a clamping seat (303), a toothed plate (304) is arranged in the clamping seat (303) in a sliding mode, a connecting rod (305) is arranged on one side of the toothed plate (304), a spring (306) is arranged between the connecting rod (305) and the clamping seat (303), and two connecting rods (305) are arranged on one side, away from the toothed plate (304), of the connecting rod (305), with a pull ring (307).
2. A lower arm attachment apparatus as defined in claim 1, wherein: the supporting device (1) comprises a base (101), a plurality of mounting lugs (102) are arranged around the base (101), an electric push rod (103) is arranged at the center position of the base (101), and a mounting frame (104) is arranged above the electric push rod (103).
3. A lower arm attachment apparatus as defined in claim 1, wherein: the clamping plates (204) are made of 316 stainless steel, and silica gel friction layers are arranged on opposite surfaces of the two clamping plates (204).
4. A lower arm attachment apparatus as defined in claim 1, wherein: the front and back threaded screw rod (205) is made of 45# steel, and an antirust oil layer is coated on the surface of the front and back threaded screw rod.
5. A lower arm attachment apparatus as defined in claim 1, wherein: the upper surface of the tightening belt (302) is provided with a friction layer, and the lower surface of the tightening belt (302) is provided with a silica gel buffer layer.
6. A lower arm fixing device according to claim 2, wherein: the mounting lugs (102) are arranged in four, and the mounting lugs (102) and the base (101) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322284102.8U CN220596986U (en) | 2023-08-24 | 2023-08-24 | Lower arm fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322284102.8U CN220596986U (en) | 2023-08-24 | 2023-08-24 | Lower arm fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220596986U true CN220596986U (en) | 2024-03-15 |
Family
ID=90180112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322284102.8U Active CN220596986U (en) | 2023-08-24 | 2023-08-24 | Lower arm fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220596986U (en) |
-
2023
- 2023-08-24 CN CN202322284102.8U patent/CN220596986U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |