CN211141425U - Double-column type lifter with safety alarm function for student practice - Google Patents
Double-column type lifter with safety alarm function for student practice Download PDFInfo
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- CN211141425U CN211141425U CN201922031337.XU CN201922031337U CN211141425U CN 211141425 U CN211141425 U CN 211141425U CN 201922031337 U CN201922031337 U CN 201922031337U CN 211141425 U CN211141425 U CN 211141425U
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Abstract
A double-column type lifting machine with a safety alarm function for student practice comprises a double-column type lifting machine body (1), a P L C controller, an infrared probe group, a power supply module, a buzzing alarm module, a light alarm module and an electromagnetic valve group, wherein the power supply module supplies power to the P L C controller, the infrared probe group is connected to the P L C controller, when an infrared probe A-H detects a pyroelectric infrared signal released by a human body, namely when a person is located below the double-column type lifting machine, the working state of the electromagnetic valve group is off, a lifting motor cannot be connected to an external power supply through the electromagnetic valve group, other people cannot control the working of the double-column type lifting machine through an operation console, namely the double-column type lifting machine is in a locked state at the moment, the personal safety of a teacher is guaranteed, meanwhile, the buzzing alarm module buzzer of the buzzing alarm module can give out a buzzing sound, and a traffic light L ED lamp of the light alarm module can flash light for warning.
Description
Technical Field
The utility model belongs to the technical field of the auto repair teaching and specifically relates to a student practice is with double-column type machine of lifting that has safety alarm function.
Background
In recent years, the use base number of automobiles is suddenly increased, the yield and the sales volume of automobiles with various models are greatly increased, correspondingly, the demand for automobile maintenance is increased, the lifting machine is used as an extremely important auxiliary device for automobile maintenance, the demand is increased, and almost every automobile maintenance point is provided with a considerable number of automobile lifting devices. With the advent of time, automobile maintenance specialties are involved in many colleges and universities today. In the auto repair teaching course, the double-column type machine of lifting is a common car lifting device, and the teacher often need lift various common models car through the double-column type machine of lifting, gives the student with the knowledge teaching of vehicle chassis corresponding parts.
However, the existing double-column type lifter base is small, so that the automobile is easy to incline when being lifted, and great potential safety hazards exist. Meanwhile, when a teacher teaches under the automobile chassis, the risk that misoperation is injured by smashing exists.
Based on the problem, the utility model provides a student practice is with double column formula machine of lifting that has safety alarm function.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model provides a student practice is with double-column type machine of lifting that has safe alarming function.
The utility model provides a technical scheme that its technical problem adopted is:
a double-column type lifter with a safety alarm function for student practice comprises a double-column type lifter body 1;
the double-column type lifter body 1 comprises a left upright post 11 and a right upright post 12 which are vertically arranged at the left side and the right side, and a bottom plate 13 which is horizontally arranged at the middle part; wherein, the left side of left stand 11 is fixed with left support frame 111 through bolted connection, and the right side of right stand 12 is fixed with right support frame 121 through bolted connection, is fixed with well support frame 131 through bolted connection between left stand 11 and the right stand 12, and left support frame 111, right support frame 121 and well support frame 131 constitute the horizontal braced system that is "worker" font jointly.
The left upright post 11 is of a frame type steel structure, a lead screw 2 which is vertically arranged is arranged in the left upright post, a lead screw sliding seat 3 is sleeved on the lead screw 2, the lead screw sliding seat 3 and the lead screw 2 form a transmission structure, a lifting seat 4 is welded on the outer side of the lead screw sliding seat 3, two sides of the lifting seat 4 are hinged with lifting arms 5 which are arranged in a V shape, and the lifting arms 5 are designed in a telescopic structure; the tail end of the lifting arm 5 is also provided with an anti-skid rubber pad 6 through an adjustable bolt; two ends of the screw rod 2 are fixed at the top end and the bottom end of the left upright post 11 through bearing seats; the top of lead screw 2 is installed from driving wheel 7, follows driving wheel 7 and passes through the belt and connect in the action wheel of lift motor 8.
The intelligent lifting device is characterized by further comprising a P L C controller, an infrared probe group, a power supply module, a buzzing alarm module, a light alarm module and an electromagnetic valve group, wherein the power supply module supplies power to the P L C controller, the infrared probe group is connected to the P L C controller and comprises infrared probes A-H which are arranged at the tail end of the lifting arm 5 and distributed at right angles, the buzzing alarm module, the light alarm module and the lifting motor 8 are respectively connected to the P L C controller, and the lifting motor 8 is connected to an external power supply through the electromagnetic valve group.
The utility model discloses still have following additional technical characterstic:
as the utility model discloses technical scheme further specifically optimizes: the left upright 11 and the right upright 12 are identical in configuration and mounting structure.
As the technical scheme of the utility model is further optimized concretely, the left upright post 11 is provided with the operation panel 9, the inside P L C controller and the power module of being provided with of operation panel 9, the power module provides the power for the P L C controller, the outside of operation panel 9 is provided with operating button, operating button is including rising button, stop button and decline button, the equal electric connection of operating button is in the P L C controller.
As the technical proposal of the utility model is further optimized, two lifting motors 8 are arranged, and the two lifting motors 8 are connected in parallel with a P L C controller inside the operating platform 9.
As the technical scheme of the utility model, the infrared probe group is further optimized specifically, the pyroelectric infrared probe with the model number of L N074B is selected as the infrared probe group, the buzzer alarm module is a buzzer, the light alarm module is a red-green L ED lamp, and the P L C controller is a processor with the model number of 89C 52.
As the utility model discloses technical scheme further specifically optimizes: an infrared detection circuit is arranged in the infrared probe group, wherein the power D end of each infrared probe A-H is externally connected with a power supply, the grounding E end of each infrared probe A-H is connected with the ground GND, the output S end of each infrared probe A-H is connected with a secondary IC2 amplification circuit through a primary Q1 amplification circuit, a secondary IC2 amplification circuit is connected with a triode Q2 through a tertiary IC3 voltage comparison circuit, and a triode Q2 is externally connected with an electromagnetic valve group.
Compared with the prior art, the utility model, its advantage lies in:
the method has the advantages that: with left branch strut 111, right branch strut 121 and well support frame 131 through pre-buried bolt fastening install subaerial can, left branch strut 111 and right branch strut 121 have increased the base structure area of double-column type machine of lifting, have strengthened the stability of double-column type machine of lifting greatly for the car is difficult for inclining forward or inclining backward when the lifting.
The double-column type lifting machine has the advantages that the lifting motors 8 are respectively arranged on the left upright post 11 and the right upright post 12, so that the bearing capacity of the double-column type lifting machine can be improved, and the two lifting motors 8 are connected in parallel to the P L C controller in the operation table 9, so that the working states of the two lifting motors 8 can be realized simultaneously, the lifting arms 5 on the left side and the right side can synchronously move in real time, the stability of the double-column type lifting machine is greatly enhanced, and the automobile is not easy to incline to the right or left when being lifted.
The double-column type lifting machine has the advantages that when the infrared probes A-H detect heat release infrared signals released by a human body, namely when a person is located below the double-column type lifting machine, the working state of the electromagnetic valve group is open circuit, the lifting motor 8 cannot be connected to an external power supply through the electromagnetic valve group, other people cannot control the double-column type lifting machine through the operating table 9, namely the double-column type lifting machine is in a locked state at the moment, the personal safety of a teacher is guaranteed, meanwhile, the buzzer of the buzzing alarm module can give out buzzing sounds to warn, and the red-green L ED lamp of the light alarm module can flash light to warn.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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 perspective view of the present invention;
fig. 2 is a schematic perspective view of the present invention;
fig. 3 is a schematic view of the structure of the present invention;
fig. 4 is a schematic top view of the present invention;
FIG. 5 is a schematic diagram of the logic structure of the circuit of the present invention;
FIG. 6 is a schematic view of the installation positions of the infrared probes A-H of the present invention;
fig. 7 is a schematic diagram of the infrared detection circuit structure of the present invention;
fig. 8 is a schematic diagram of the electromagnetic valve set circuit structure of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings, in order that the present disclosure may be more completely understood, and the scope of the present disclosure may be fully conveyed to those skilled in the art. While the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure is not limited to the embodiments set forth herein.
It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and do not indicate or imply that the designated device or element must have a specific orientation, be constructed and operated in a specific orientation, or be used to limit the scope of the invention, and the relative relationship therebetween may be changed or adjusted without substantial technical changes. Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A double-column type lifting machine with a safety alarm function for student practice comprises a double-column type lifting machine body 1. The double-column type lifter body 1 comprises a left upright post 11 and a right upright post 12 which are vertically arranged at the left side and the right side, and a bottom plate 13 which is horizontally arranged at the middle part; wherein, the left side of left stand 11 is fixed with left support frame 111 through bolted connection, and the right side of right stand 12 is fixed with right support frame 121 through bolted connection, is fixed with well support frame 131 through bolted connection between left stand 11 and the right stand 12, and left support frame 111, right support frame 121 and well support frame 131 constitute the horizontal braced system that is "worker" font jointly.
During the in-service use, with left branch strut 111, right branch strut 121 and well support frame 131 through pre-buried bolt fastening install subaerial can, left branch strut 111 and right branch strut 121 have increased the base structure area of the machine of lifting of twin columns, have strengthened the stability of the machine of lifting of twin columns greatly for the car is difficult for inclining forward or inclining backward when the lifting.
The left upright 11 and the right upright 12 are identical in configuration and mounting structure. The left upright post 11 is of a frame type steel structure, a lead screw 2 which is vertically arranged is arranged in the left upright post, a lead screw sliding seat 3 is sleeved on the lead screw 2, the lead screw sliding seat 3 and the lead screw 2 form a transmission structure, a lifting seat 4 is welded on the outer side of the lead screw sliding seat 3, two sides of the lifting seat 4 are hinged with lifting arms 5 which are arranged in a V shape, and the lifting arms 5 are designed in a telescopic structure; the tail end of the lifting arm 5 is also provided with an anti-skid rubber pad 6 through an adjustable bolt; two ends of the screw rod 2 are fixed at the top end and the bottom end of the left upright post 11 through bearing seats; the top of lead screw 2 is installed from driving wheel 7, follows driving wheel 7 and passes through the belt and connect in the action wheel of lift motor 8.
The left upright post 11 is provided with an operating platform 9, a P L C controller and a power supply module are arranged inside the operating platform 9, the power supply module supplies power to the P L C controller, operating buttons are arranged outside the operating platform 9 and comprise a lifting button, a stopping button and a descending button, the operating buttons are electrically connected to the P L C controller, the two lifting motors 8 are arranged, and the two lifting motors 8 are connected in parallel to the P L C controller inside the operating platform 9.
The working state of the double-column type lifting machine is controlled through the operating table 9, when a lifting button is pressed down, the button is stopped to bounce, the two lifting motors 8 rotate forwards simultaneously to work, and the lifting arms 5 are indirectly driven to lift vertically; pressing down a stop button, bouncing up a lifting button, stopping the two lifting motors 8 at the same time, and locking and standing the lifting arms 5 at the current position; pressing down a descending button, stopping the button from bouncing, and enabling the two lifting motors 8 to work reversely at the same time to indirectly drive the lifting arm 5 to descend vertically; after the lifting arm 5 is in a proper position, the stop button is pressed, the descending button is bounced, the two lifting motors 8 stop working at the same time, and the lifting arm is locked and placed still at the position.
Because left stand 11 and right stand 12 have installed lifting motor 8 respectively, can improve the bearing capacity of double-column formula machine of lifting, secondly, two lifting motor 8 parallel connection are in the inside P L C controller of operation panel 9, can be with the operating condition of two lifting motor 8 simultaneously for the lifting arm 5 real-time synchronous motion of the left and right sides, strengthened the stability of double-column formula machine of lifting greatly, make the car be difficult for tilting to the right or left when the lifting.
Further, the improved double-column type lifting machine with the safety alarm function for student practice comprises an infrared probe group, a buzzing alarm module, a light alarm module and an electromagnetic valve group on the basis of the double-column type lifting machine, wherein the infrared probe group is connected to a P L C controller, the infrared probe group comprises infrared probes A-H which are arranged at the tail end of a lifting arm 5 and distributed at right angles, the buzzing alarm module, the light alarm module and a lifting motor 8 are all connected to the P L C controller through the electromagnetic valve group, and the lifting motor 8 is connected to an external power supply through the electromagnetic valve group.
In practical use, the infrared probe group is a pyroelectric infrared probe with the model number of L N074B, the buzzer alarm module is a buzzer, the light alarm module is a red-green L ED lamp, and the P L C controller is a processor with the model number of 89C 52.
When the infrared probe set is actually used, an infrared detection circuit is arranged in the infrared probe set, the power D end of each infrared probe A-H is externally connected with a power supply, the grounding E end of each infrared probe A-H is connected with the ground GND, the output S end of each infrared probe A-H is connected with a secondary IC2 amplification circuit through a primary Q1 amplification circuit, a secondary IC2 amplification circuit is connected with a triode Q2 through a tertiary IC3 voltage comparison circuit, and a triode Q2 is externally connected with an electromagnetic valve set.
The electromagnetic valve bank comprises a fuse FU, a relay KA and a contactor KM, wherein the fuse FU and the relay KA are connected in series into an infrared detection circuit, a contact switch KA1 of the relay KA is connected in series with a contactor KM and a resistor R, a contact switch KA2 of the relay KA is connected in series with a buzzer alarm module, a contact switch KA3 of the relay KA is connected in series with a light alarm module, and a contact switch KM1 of the contactor KM is connected in series with a lifting motor 8; the series parts are connected in parallel to an external power supply.
The utility model discloses an infrared probe A-H adopts L N074B's pyroelectric infrared probe as the probe, after infrared probe A-H received the heat release infrared signal that the human body released, convert the low frequency signal of frequency about 0.3-3Hz by infrared probe A-H self inside control head, the low frequency signal carries out signal amplification step by step through one-level Q1 amplifier circuit, second grade IC2 amplifier circuit, signal input tertiary IC3 voltage comparison circuit after the second grade is amplified, at this moment, signal after the second grade is amplified is higher than the reference voltage, triode Q2 switches on, and then make electromagnetism valves work, at this moment, relay KA gets electric, its contact switch KA1, contact switch KA2 and contact switch KA3 all get electric conduction, at this moment, contact switch 1 series connection's contactor KM 2 gets electric, contact switch series connection, the buzzer alarm module that the series connection was established ties and is sent out the buzzing sound and is carried out the buzzer and carried out the buzzer of the warning, contact switch 3 series connection, the warning switch KA1 of the electric alarm of the post is established ties, the operation of the luminous alarm, the luminous alarm is established ties, the luminous alarm is established the luminous alarm, other people is established the luminous alarm, the luminous alarm is established the luminous alarm.
When the infrared probes A-H do not detect the heat release infrared signals released by the human body, namely when no person is positioned below the double-column type lifting machine, the working state of the electromagnetic valve group is a passage, the lifting motor 8 is connected to an external power supply through the electromagnetic valve group, and a teacher can freely control the double-column type lifting machine to work through the operating platform 9. Meanwhile, the buzzer alarm module and the light alarm module can not give out warning.
Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all changes in equivalent structures or equivalent processes using the contents of the specification and drawings of the present invention, or directly or indirectly using other related technical fields, are also included in the scope of the present invention.
Claims (7)
1. The utility model provides a student practice is with double column formula machine of lifting that has safe alarming function which characterized in that: comprises a double-column type lifter body (1);
the double-column type lifter body (1) comprises a left upright column (11) and a right upright column (12) which are vertically arranged at the left side and the right side, and a bottom plate (13) which is horizontally arranged at the middle part; the left side of the left upright post (11) is fixedly connected with a left support frame (111) through a bolt, the right side of the right upright post (12) is fixedly connected with a right support frame (121) through a bolt, a middle support frame (131) is fixedly connected between the left upright post (11) and the right upright post (12) through a bolt, and the left support frame (111), the right support frame (121) and the middle support frame (131) jointly form an I-shaped horizontal support system;
the left upright post (11) is of a frame type steel structure, a lead screw (2) which is vertically arranged is arranged in the left upright post, a lead screw sliding seat (3) is sleeved on the lead screw (2), the lead screw sliding seat (3) and the lead screw (2) form a transmission structure, a lifting seat (4) is welded on the outer side of the lead screw sliding seat (3), lifting arms (5) which are arranged in a V shape are hinged to two sides of the lifting seat (4), and the lifting arms (5) are designed in a telescopic structure; the tail end of the lifting arm (5) is also provided with an anti-skid rubber pad (6) through an adjustable bolt; two ends of the lead screw (2) are fixed at the top end and the bottom end of the left upright post (11) through bearing seats; a driven wheel (7) is installed at the top end of the screw rod (2), and the driven wheel (7) is connected with a driving wheel of a lifting motor (8) through a belt;
the intelligent lifting device is characterized by further comprising a P L C controller, an infrared probe group, a power supply module, a buzzing alarm module, a light alarm module and an electromagnetic valve group, wherein the power supply module supplies power to the P L C controller, the infrared probe group is connected to the P L C controller and comprises infrared probes A-H which are arranged at the tail end of the lifting arm (5) and distributed at right angles, the buzzing alarm module, the light alarm module and the lifting motor (8) are respectively connected to the P L C controller, and the lifting motor (8) is connected to an external power supply through the electromagnetic valve group.
2. The dual column type lifting machine with a safety alarm function for student practice according to claim 1, characterized in that: the left upright post (11) and the right upright post (12) are identical in configuration and installation structure.
3. The double-column type lifting machine with the safety alarm function for the student to practice is characterized in that an operation table (9) is arranged on the left upright post (11), a P L C controller and a power supply module are arranged inside the operation table (9), the power supply module supplies power to the P L C controller, operation buttons are arranged outside the operation table (9), the operation buttons comprise a lifting button, a stopping button and a descending button, and the operation buttons are all electrically connected to the P L C controller.
4. The double-column type lifting machine with the safety alarm function for student practice as claimed in claim 1 is characterized in that two lifting motors (8) are provided, and the two lifting motors (8) are connected in parallel to a P L C controller inside the operation table (9).
5. The dual-column type lifting machine with the safety alarm function for student practice as claimed in claim 1 is characterized in that the infrared probe group is a pyroelectric infrared probe with the model number of L N074B, the buzzer alarm module is a buzzer, the light alarm module is a red-green L ED lamp, and the P L C controller is a processor with the model number of 89C 52.
6. The dual column type lifting machine with a safety alarm function for student practice according to claim 1, characterized in that: an infrared detection circuit is arranged in the infrared probe group, wherein the power D end of each infrared probe A-H is externally connected with a power supply, the grounding E end of each infrared probe A-H is connected with the ground GND, the output S end of each infrared probe A-H is connected with a secondary IC2 amplification circuit through a primary Q1 amplification circuit, a secondary IC2 amplification circuit is connected with a triode Q2 through a tertiary IC3 voltage comparison circuit, and a triode Q2 is externally connected with an electromagnetic valve group.
7. The dual column type lifting machine with a safety alarm function for student practice according to claim 1, characterized in that: the electromagnetic valve bank comprises a fuse FU, a relay KA and a contactor KM, wherein the fuse FU and the relay KA are connected in series into an infrared detection circuit, a contact switch KA1 of the relay KA is connected in series with a contactor KM and a resistor R, a contact switch KA2 of the relay KA is connected in series with a buzzer alarm module, a contact switch KA3 of the relay KA is connected in series with a light alarm module, and a contact switch KM1 of the contactor KM is connected in series with a lifting motor (8); and the two are connected in parallel and then are connected with an external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922031337.XU CN211141425U (en) | 2019-11-22 | 2019-11-22 | Double-column type lifter with safety alarm function for student practice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922031337.XU CN211141425U (en) | 2019-11-22 | 2019-11-22 | Double-column type lifter with safety alarm function for student practice |
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| Publication Number | Publication Date |
|---|---|
| CN211141425U true CN211141425U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922031337.XU Expired - Fee Related CN211141425U (en) | 2019-11-22 | 2019-11-22 | Double-column type lifter with safety alarm function for student practice |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047265A (en) * | 2020-09-07 | 2020-12-08 | 秦孝文 | Automobile lifting safety warning system |
| CN112518690A (en) * | 2020-11-30 | 2021-03-19 | 重庆电子工程职业学院 | Automobile chassis maintenance workbench |
-
2019
- 2019-11-22 CN CN201922031337.XU patent/CN211141425U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047265A (en) * | 2020-09-07 | 2020-12-08 | 秦孝文 | Automobile lifting safety warning system |
| CN112518690A (en) * | 2020-11-30 | 2021-03-19 | 重庆电子工程职业学院 | Automobile chassis maintenance workbench |
| CN112518690B (en) * | 2020-11-30 | 2022-01-04 | 重庆电子工程职业学院 | Automobile chassis maintenance workbench |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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