CN211198459U - Lifting platform with self-locking function - Google Patents
Lifting platform with self-locking function Download PDFInfo
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- CN211198459U CN211198459U CN201921722401.2U CN201921722401U CN211198459U CN 211198459 U CN211198459 U CN 211198459U CN 201921722401 U CN201921722401 U CN 201921722401U CN 211198459 U CN211198459 U CN 211198459U
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Abstract
The utility model relates to a lifting platform with self-locking function. The hinged rack is supported by the supporting oil cylinder, the fixed end of the hinged rack is fixed on the bottom frame, the moving end of the hinged rack is fixed on the fixed rod, the fixed rod is connected with the bottom frame through the sliding block, the sliding block is provided with a mechanical lock, the sliding block side portion is provided with a fixed block, the front portion of the fixed block is provided with a T-shaped spring bolt, the middle portion of the spring bolt is hinged to the fixed block through a pin shaft, the spring bolt sags under the self gravity, the bottom of the spring bolt is inserted into an oblique tooth groove of a groove locking strip, and the spring. The utility model discloses when the roof-rack rises to different heights, articulated frame all can be pinned, and the spring bolt can not overturn and break away from the skewed tooth recess of keyway strip, therefore articulated frame's support intensity is strengthened.
Description
Technical Field
The utility model relates to a elevating platform technical field, specifically speaking relate to elevating platform with self-locking function.
Background
The lifting platform is used for lifting heavy objects, the lifting of the lifting platform is mostly supported by an oil cylinder, and a piston rod of the oil cylinder extends to lift the lifting platform. When the load of the heavy object exceeds the supporting strength of the oil cylinder, the piston of the oil cylinder easily falls back, and danger is caused. Therefore, the hinge frame is required to be locked after the lifting platform is lifted, and the supporting strength of the lifting platform is enhanced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above-mentioned problem, provide the elevating platform with self-locking function, its articulated frame rises the back, can be locked fixedly.
In order to solve the above problem, the utility model discloses a technical scheme as follows:
a lifting platform with a self-locking function comprises bottom frames, hinged frames, a top frame and a supporting oil cylinder, wherein the two bottom frames are arranged side by side, a scissor-type hinged frame is arranged above the bottom frames, the top frame is arranged above the hinged frames, the hinged frames are supported by the supporting oil cylinder, a cylinder body of the supporting oil cylinder is hinged with the bottom frames, and a piston rod of the supporting oil cylinder is connected with the hinged frames. The spring bolt corresponds the unblock cylinder, and the cylinder body of unblock cylinder is fixed on the fixed block, and the piston rod of unblock cylinder is just to the spring bolt front portion.
Furthermore, a travel switch is arranged on the bottom frame, the travel switch controls an oil pump on an oil inlet pipeline of the lower cylinder body of the supporting oil cylinder, and the position of the sliding block is located when the travel switch is located at the highest position of the hinged frame.
Compared with the prior art, the utility model has the beneficial characteristics that:
(1) when the support cylinder rises, the removal end of articulated frame slides along the chassis backward, the spring bolt overturns forward, the spring bolt slides at the locked groove strip top, after the roof-rack reaches the demand height, the piston rod of support cylinder stops the extension, articulated frame stops to rise, the spring bolt is flagging under self gravity, the spring bolt bottom is inserted in the skewed tooth recess of locked groove strip, because the spring bolt is withstood by the fixed block, the spring bolt can not overturn backward, consequently, the spring bolt front portion is withstood by the perpendicular of skewed tooth recess, the spring bolt rear portion is withstood by the fixed block, when lift platform bears the heavy object, the spring bolt can not overturn and break away from the skewed tooth recess of locked groove strip, consequently, the support intensity of articulated frame is strengthened. And when the top frame of the utility model rises to different heights, the hinged frame can be locked.
(2) The movable end of the hinged frame is fixed on the fixed rod, the fixed rod is connected with the bottom frame through the sliding block, and the fixed rod drives the movable ends of the two groups of hinged frames to move together, so that the two groups of hinged frames are lifted synchronously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a lifting platform with a self-locking function according to the present invention;
fig. 2 is a schematic structural view of the keyway strip of the present invention;
fig. 3 is a schematic structural view of the mechanical lock of the present invention;
reference numerals: the device comprises a bottom frame-1, a hinged frame-2, a top frame-3, a supporting oil cylinder-4, a fixed rod-5, a sliding block-6, a locking groove strip-7, a helical tooth groove-71, a bolt-81, an unlocking cylinder-82 and a fixed block-83.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
Referring to the attached drawings 1-3 of the specification, a lifting platform with a self-locking function comprises an underframe 1, hinged frames 2, a top frame 3 and a supporting oil cylinder 4, wherein the two underframe 1 are arranged side by side, a scissor-type hinged frame 2 is arranged above the underframe 1, the top frame 3 is arranged above the hinged frame 2, the hinged frame 2 is supported by the supporting oil cylinder 4, the body of the supporting oil cylinder is hinged with the underframe 1 through a pin shaft, the piston rod of the supporting oil cylinder is connected with the hinged frame 2, the fixed end of the hinged frame 2 is fixed on the underframe 1, the moving end of the hinged frame 2 is fixed on a fixed rod 5, the fixed rod 5 drives the moving ends of the two groups of hinged frames to move simultaneously, so that the two groups of hinged frames are lifted synchronously, the two top frames are kept flush, the fixed rod 5 is connected with the underframe 1 through a sliding block 6, when the hinged frame 2 is lifted, the sliding block, the mechanical lock comprises a bolt 81 and an unlocking cylinder 82, a fixing block 83 is arranged on the side portion of a sliding block 6, a T-shaped bolt 81 is arranged on the front portion of the fixing block 83, the middle portion of the bolt 81 is hinged to the fixing block 83 through a pin shaft, the bolt 81 sags under the self gravity, the bottom of the bolt 81 is inserted into a skewed tooth groove 71 of a lock groove strip 7, the bolt 81 corresponds to the unlocking cylinder 82, a cylinder body of the unlocking cylinder is fixed on the fixing block 83, and a piston rod of the unlocking cylinder is opposite to the front portion of. When the piston rod extension of support cylinder, when articulated frame rises, the support of the articulated frame on the connection dead lever moves backward along the chassis, the spring bolt overturns forward this moment, the spring bolt slides at the locked groove strip top, when the piston rod of support cylinder stops the extension, articulated frame stops rising, the spring bolt is flagging under self gravity this moment, the vertical face flagging that T shape spring bolt is favorable to the spring bolt more, the spring bolt bottom is inserted in the skewed tooth recess of locked groove strip, the spring bolt front portion is withstood by the straight face of skewed tooth recess, the spring bolt rear portion is withstood by the fixed block, the spring bolt is owing to can not overturn backward, therefore under the roof-rack load, the spring bolt can not break away from the skewed tooth recess of locked groove strip, the support strength of articulated frame has.
Furthermore, a travel switch is arranged on the bottom frame, the travel switch controls an oil pump on an oil inlet pipeline of the lower cylinder body of the supporting oil cylinder, and the position of the sliding block is located when the travel switch is located at the highest position of the hinged frame. When the hinged frame rises to the highest position, the slide block extrudes the travel switch, the oil pump stops supplying oil to the lower cylinder body of the supporting oil cylinder at the moment, the piston rod of the supporting oil cylinder stops extending, the extending length of the supporting oil cylinder is prevented from exceeding the highest height of the hinged frame, and meanwhile, the phenomenon that the moving displacement of the moving end of the hinged frame driven by the fixed rod is too large, so that the moving end of the hinged frame exceeds the gravity center point of the bottom frame to cause the lifting platform to lose balance and cause rollover danger is avoided.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A lifting platform with a self-locking function comprises bottom frames, hinged frames, a top frame and a supporting oil cylinder, wherein the two bottom frames are arranged side by side, a scissor-type hinged frame is arranged above the bottom frames, the top frame is arranged above the hinged frames, the hinged frames are supported by the supporting oil cylinder, a cylinder body of the supporting oil cylinder is hinged with the bottom frames, and a piston rod of the supporting oil cylinder is connected with the hinged frames. The spring bolt corresponds the unblock cylinder, and the cylinder body of unblock cylinder is fixed on the fixed block, and the piston rod of unblock cylinder is just to the spring bolt front portion.
2. The lifting platform with self-locking function as claimed in claim 1, wherein the base frame is provided with a travel switch, the travel switch controls an oil pump on an oil inlet pipeline of the lower cylinder body of the supporting oil cylinder, and the travel switch is located at the position of the sliding block when the travel switch is located at the highest position of the hinged frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722401.2U CN211198459U (en) | 2019-10-15 | 2019-10-15 | Lifting platform with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722401.2U CN211198459U (en) | 2019-10-15 | 2019-10-15 | Lifting platform with self-locking function |
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| Publication Number | Publication Date |
|---|---|
| CN211198459U true CN211198459U (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921722401.2U Active CN211198459U (en) | 2019-10-15 | 2019-10-15 | Lifting platform with self-locking function |
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| CN (1) | CN211198459U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113336127A (en) * | 2021-06-24 | 2021-09-03 | 江苏锐志岩土工程有限公司 | Supporting layer jacking device |
| CN114684742A (en) * | 2021-09-13 | 2022-07-01 | 路特利举升机(海门)有限公司 | Quick oil supplementing device |
-
2019
- 2019-10-15 CN CN201921722401.2U patent/CN211198459U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113336127A (en) * | 2021-06-24 | 2021-09-03 | 江苏锐志岩土工程有限公司 | Supporting layer jacking device |
| CN114684742A (en) * | 2021-09-13 | 2022-07-01 | 路特利举升机(海门)有限公司 | Quick oil supplementing device |
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