CN210973749U - Portal rises stop device and fork truck - Google Patents
Portal rises stop device and fork truck Download PDFInfo
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- CN210973749U CN210973749U CN201921710616.2U CN201921710616U CN210973749U CN 210973749 U CN210973749 U CN 210973749U CN 201921710616 U CN201921710616 U CN 201921710616U CN 210973749 U CN210973749 U CN 210973749U
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Abstract
The utility model belongs to the technical field of fork truck, a portal plays to rise stop device and fork truck is related to. This portal plays to rise stop device includes outer portal, interior portal and distance sensing mechanism, outer portal is installed on the fork truck automobile body, interior portal is followed the direction of height sliding connection of outer portal is in on the outer portal, distance sensing mechanism fixed connection be in on the interior portal, distance sensing mechanism is used for detecting the upper surface of interior portal and being located the distance between the sheltering from the thing of the top of interior portal. The gantry lifting limiting device can monitor the distance between the upper surface of the inner gantry and a shielding object (such as a warehouse ceiling) positioned above the inner gantry in real time, and can regulate and control the distance through a program.
Description
Technical Field
The utility model belongs to the technical field of fork truck, especially, relate to a portal plays to rise stop device and fork truck.
Background
The existing forklift is often in a condition of working in a shorter warehouse, but the highest point of lifting of the forklift is far higher than the height of the warehouse in many times, and if lifting limiting is not carried out, an operator can easily collide with the top of the warehouse in the operation process, so that accidents are caused.
Mechanical limiting devices are used in the market at present, and the lifting limiting effect is achieved through the contact of a limiting switch and a limiting block (iron block). However, the limiting device has the following defects:
(1) the corresponding position of the limiting block needs to be designed according to the warehouse height of a client, so that unnecessary design and manufacturing period is increased.
(2) The warehouse with different heights cannot achieve universality, namely the limiting height is single, and the requirements of the warehouses with different heights cannot be met.
(3) When the portal does not need high spacing outdoors, need to pull out limit switch's pencil or demolish limit switch, and when need get back to work in the warehouse again, will adorn it again, increased dismouting work load to the dismouting in-process can cause limit switch's damage and life.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: to the technical problem that the universality of the existing mechanical limiting device is poor, a portal hoisting limiting device and a forklift are provided.
In order to solve the technical problem, on the one hand, the embodiment of the utility model provides a portal plays to rise stop device, including outer portal, interior portal and distance sensing mechanism, the outer portal is installed on the fork truck body, interior portal is followed the direction of height sliding connection of outer portal is in on the outer portal, distance sensing mechanism fixed connection is in on the interior portal, distance sensing mechanism is used for detecting the upper surface of interior portal with be located the distance between the shelter from the thing of the top of interior portal.
According to the utility model discloses portal plays to rise stop device, with distance sensing mechanism fixed connection on the interior portal, through distance sensing mechanism real-time supervision the upper surface of interior portal with be located the distance between the shelter from the thing (like the warehouse ceiling) of the top of interior portal to regulate and control through the procedure. When the inner door frame rises to a certain height and the shielding object above the inner door frame is a certain preset value (namely the minimum distance between the inner door frame and the shielding object), information is fed back to the electric control system, and the electric control system controls the inner door frame to not rise any more so as to achieve the purpose of limiting. The gantry lifting limiting device is simple in structure and convenient to install, and when the gantry (comprising the inner gantry and the outer gantry) works at different heights or outdoors, a distance sensing mechanism does not need to be adjusted or detached, and the normal work of the gantry is not affected.
Optionally, the distance sensing mechanism comprises a laser range finder fixedly connected to the inner gantry.
Optionally, the distance sensing mechanism further comprises a support, the support is fixedly connected to the inner gantry, and the laser range finder is fixedly connected to the support.
Optionally, the support includes interior portal fixed plate and with the laser range finder fixed plate that interior portal fixed plate meets, interior portal fixed plate fixed connection be in on the interior portal, laser range finder fixed connection be in on the laser range finder fixed plate.
Optionally, the laser range finder fixed plate is the U-shaped board, the laser range finder fixed plate includes first connecting plate, second connecting plate and connects first connecting plate with the third connecting plate between the second connecting plate, laser range finder fixed connection in first connecting plate with between the second connecting plate.
Optionally, the inner gantry fixing plate is vertically connected to the third connecting plate.
Optionally, the outer gantry includes a first outer longitudinal plate, a second outer longitudinal plate, and a first cross plate connected between the first outer longitudinal plate and the second outer longitudinal plate;
the inner gantry comprises a first inner longitudinal plate, a second inner longitudinal plate and a second transverse plate connected between the upper end of the first inner longitudinal plate and the upper end of the second inner longitudinal plate;
the first inner longitudinal plate is connected to the first outer longitudinal plate in a sliding mode, the second inner longitudinal plate is connected to the second outer longitudinal plate in a sliding mode, and the distance sensing mechanism is fixedly connected to the second transverse plate.
Optionally, the gantry lifting limiting device further comprises a driving mechanism for driving the inner gantry to slide up and down along the outer gantry, the distance sensing mechanism and the driving mechanism are respectively connected with an electric control system, and the distance sensing mechanism sends the detected distance between the upper surface of the inner gantry and the shielding object to the electric control system;
when the driving mechanism drives the inner door frame to slide upwards along the outer door frame, and when the distance sensing mechanism detects that the distance between the upper surface of the inner door frame and the shelter is smaller than or equal to a preset safety distance, the electric control system controls the driving mechanism to stop working.
Optionally, the distance sensing mechanism is located above the fork carriage of the forklift in the height direction.
On the other hand, the embodiment of the utility model provides a fork truck, rise stop device including foretell portal.
Drawings
Fig. 1 is a schematic view of a gantry lifting limiting device according to an embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic view of a bracket of a gantry lifting limiting device according to an embodiment of the present invention;
fig. 4 is a schematic view of another angle of the gantry lifting limiting device according to an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. an outer gantry; 11. a first outer longitudinal plate; 12. a second outer longitudinal plate; 13. a first transverse plate;
2. an inner gantry; 21. a first inner longitudinal plate; 22. a second inner longitudinal plate; 23. a second transverse plate;
3. a distance sensing mechanism; 31. a laser range finder; 32. a support; 321. an inner gantry fixing plate; 322. a laser range finder fixing plate; 3221. a first connecting plate; 3222. a second connecting plate; 3223. a third connecting plate;
4. a fork carriage.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, the embodiment of the utility model provides a portal plays to rise stop device, including outer portal 1, interior portal 2 and distance sensing mechanism 3, outer portal 1 is installed on the forklift body, interior portal 2 is followed the direction of height sliding connection of outer portal 1 is in on the outer portal 1, distance sensing mechanism 3 fixed connection is in on the interior portal 2, distance sensing mechanism 3 is used for detecting the upper surface of interior portal 2 with be located the distance between the shelter from the thing of the top of interior portal 2.
The embodiment of the utility model provides a portal plays to rise stop device will be apart from 3 fixed connection of sensing mechanism on interior portal 2, through 3 real-time supervision of sensing mechanism the upper surface of interior portal 2 with be located the distance between the shelter from thing (like the warehouse ceiling) of the top of interior portal 2 to regulate and control through the procedure. When the inner gantry 2 rises to a certain height and the shielding object above the inner gantry 2 is a certain preset value (namely the minimum distance h1 between the inner gantry 2 and the shielding object), information is fed back to the electric control system, and the electric control system controls the inner gantry 2 to not rise any more, so that the purpose of limiting is achieved. The gantry lifting limiting device is simple in structure and convenient to install, when the gantry (comprising the inner gantry 2 and the outer gantry 1) works at different heights or outdoors, the distance sensing mechanism 3 does not need to be adjusted or detached, and the normal work of the gantry is not affected.
The embodiment of the utility model provides an in, the shelter from thing of the top of interior portal 2 can be for the ceiling of warehouse, be located the portal plays to rise the baffle or other that stop device top can be right interior portal 2 carries out the object that shelters from.
In an embodiment, as shown in fig. 2, the distance sensing mechanism 3 includes a laser distance meter 31, the laser distance meter 31 is fixedly connected to the inner gantry 2 to implement the installation of the laser distance meter 31, and the distance between the upper surface of the inner gantry 2 and a shelter (such as a warehouse ceiling) above the inner gantry 2 is monitored in real time by the laser distance meter 31.
In one embodiment, when the inner mast 2 is not raised to the top, the highest point of the inner mast 2 is generally higher than the highest point of the fork carriage 4, so the laser rangefinder 31 is mounted at the highest point of the inner mast 2.
In one embodiment, as shown in fig. 2, the distance sensing mechanism 3 further includes a bracket 32, the bracket 32 is fixedly connected to the inner gantry 2, and the laser range finder 31 is fixedly connected to the bracket 32. The support 32 provides a mounting point for the laser range finder 31, so that the laser range finder 31 is indirectly fixed on the inner gantry 2 through the support 32, and the laser range finder 31 is mounted.
In an embodiment, as shown in fig. 2, the support 32 includes an inner gantry fixing plate 321 and a laser range finder fixing plate 322 connected to the inner gantry fixing plate 321, the inner gantry fixing plate 321 is fixedly connected to the inner gantry 2, and the laser range finder 31 is fixedly connected to the laser range finder fixing plate 322.
Interior portal fixed plate 321 fixed connection be in on the interior portal 2, because laser range finder fixed plate 322 with interior portal fixed plate 321 meets, the position of laser range finder fixed plate 322 will also be fixed on interior portal 2, through with laser range finder 31 fixed connection be in on the laser range finder fixed plate 322, with will laser range finder 31 passes through support 32 is indirect to be fixed on the interior portal 2.
In one embodiment, as shown in fig. 3, the laser range finder fixing plate 322 is a U-shaped plate, and the laser range finder fixing plate 322 includes a first connecting plate 3221, a second connecting plate 3222 and a third connecting plate 3223 connected between the first connecting plate 3221 and the second connecting plate 3222, so as to form the U-shaped laser range finder fixing plate 322. The laser distance meter 31 is fixedly connected between the first connecting plate 3221 and the second connecting plate 3222, so that the laser distance meter 31 is fixedly connected to the laser distance meter fixing plate 322.
In an embodiment, as shown in fig. 3, the first connecting plate 3221 is parallel to the second connecting plate 3222, the third connecting plate 3223 is perpendicular to the first connecting plate 3221, the inner gantry fixing plate 321 is perpendicular to the third connecting plate 3223, and the inner gantry fixing plate 321 is parallel to the first connecting plate 3221 to form the support frame 32.
In one embodiment, as shown in fig. 3, the outer gantry 1 includes a first outer longitudinal plate 11, a second outer longitudinal plate 12, and a first cross plate 13 connected between the first outer longitudinal plate 11 and the second outer longitudinal plate 12. The inner gantry 2 comprises a first inner vertical plate 21, a second inner vertical plate 22 and a second transverse plate 23 connected between the upper end of the first inner vertical plate 21 and the upper end of the second inner vertical plate 22.
The first inner longitudinal plate 21 is slidably connected to the first outer longitudinal plate 11, and the second inner longitudinal plate 22 is slidably connected to the second outer longitudinal plate 12, so that the inner gantry 2 is slidably connected to the outer gantry 1 along the height direction of the outer gantry 1.
The distance sensing mechanism 3 is fixedly connected to the second cross plate 23, so that the distance sensing mechanism 3 is fixedly connected to the inner gantry 2, and the distance sensing mechanism 3 is located at the highest position of the inner gantry 2.
In an embodiment, the gantry lifting limiting device further includes a driving mechanism (not shown) for driving the inner gantry 2 to slide up and down along the outer gantry 1, the driving mechanism, the distance sensing mechanism and the driving mechanism are respectively connected to an electronic control system, and the distance sensing mechanism sends the detected distance between the upper surface of the inner gantry and the shelter to the electronic control system.
When the driving mechanism drives the inner gantry 2 to slide upwards along the outer gantry 1, and when the distance sensing mechanism 3 detects that the distance between the upper surface of the inner gantry 2 and the shielding object is smaller than or equal to a preset safety distance, the electric control system controls the driving mechanism to stop working so as to realize lifting limit of the inner gantry 2.
The preset safe distance is a safe distance which is set in advance and is used for preventing the inner door frame 2 from colliding with the sheltering object.
In one embodiment, as shown in figure 1, the distance sensing mechanism 3 is located above the fork carriage 4 of the forklift in the height direction to ensure accuracy of the distance between the upper surface of the inner mast 2 and the shade located above the inner mast 2 as detected by the distance sensing mechanism 3.
The embodiment of the utility model provides a portal plays to rise stop device's theory of operation as follows:
taking the driving mechanism as an example, the inner gantry 2 and the fork carriage 4 are controlled to lift through a hydraulic and electric control system, in the lifting process, the laser range finder 31 installed on the inner gantry 2 can synchronously detect the distance h from the second transverse plate 23 (namely the highest point of the inner gantry 2) of the inner gantry 2 to a shielding object (such as a warehouse ceiling), the laser range finder 31 is provided with a wireless transmitter, the wireless transmitter synchronously transmits the value of h to a wireless receiver, and the wireless receiver is connected with the electric control system. And setting the preset safe distance between the inner gantry 2 and the shielding object as h1, and when the distance h is less than or equal to h1, closing the valve port by the electric control system, disconnecting the oil path, so that the lifting oil cylinder cannot continue to lift, stopping lifting the inner gantry 2, and finishing the lifting limiting work.
The embodiment of the utility model provides a portal plays to rise stop device's control logic does: when the detection result of the laser range finder 31 shows that the distance h between the inner gantry 2 and the shielding object is larger than h1, the inner gantry 2 can be lifted or lowered; when the detection result of the laser range finder 31 shows that the distance h between the inner gantry 2 and the shielding object is not more than h1, the inner gantry 2 cannot be lifted and only can be lowered.
The embodiment of the utility model provides a fork truck, it includes that foretell portal plays to rise stop device.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a portal plays to rise stop device, a serial communication port, includes outer portal, interior portal and distance sensing mechanism, outer portal is installed on the fork truck automobile body, interior portal is followed the direction of height sliding connection of outer portal is in on the outer portal, distance sensing mechanism fixed connection is in on the interior portal, distance sensing mechanism is used for detecting the upper surface of interior portal with be located the distance between the sheltering from thing of the top of interior portal.
2. The gantry lifting limit device of claim 1, wherein the distance sensing mechanism comprises a laser range finder fixedly connected to the inner gantry.
3. The mast lifting limit device of claim 2, wherein the distance sensing mechanism further comprises a bracket fixedly connected to the inner mast, the laser range finder being fixedly connected to the bracket.
4. The gantry lifting limiting device according to claim 3, wherein the support comprises an inner gantry fixing plate and a laser range finder fixing plate connected with the inner gantry fixing plate, the inner gantry fixing plate is fixedly connected to the inner gantry, and the laser range finder is fixedly connected to the laser range finder fixing plate.
5. The gantry lifting limiting device according to claim 4, wherein the laser range finder fixing plate is a U-shaped plate and comprises a first connecting plate, a second connecting plate and a third connecting plate connected between the first connecting plate and the second connecting plate, and the laser range finder is fixedly connected between the first connecting plate and the second connecting plate.
6. The mast lifting limit device of claim 5, wherein the inner mast mounting plate is vertically connected to the third link plate.
7. The mast lifting limit device of claim 1, wherein the outer mast comprises a first outer longitudinal plate, a second outer longitudinal plate, and a first cross plate connected between the first outer longitudinal plate and the second outer longitudinal plate;
the inner gantry comprises a first inner longitudinal plate, a second inner longitudinal plate and a second transverse plate connected between the upper end of the first inner longitudinal plate and the upper end of the second inner longitudinal plate;
the first inner longitudinal plate is connected to the first outer longitudinal plate in a sliding mode, the second inner longitudinal plate is connected to the second outer longitudinal plate in a sliding mode, and the distance sensing mechanism is fixedly connected to the second transverse plate.
8. The gantry lifting limiting device according to claim 1, further comprising a driving mechanism for driving the inner gantry to slide up and down along the outer gantry, wherein the distance sensing mechanism and the driving mechanism are respectively connected with an electric control system, and the distance sensing mechanism sends the detected distance between the upper surface of the inner gantry and the shelter to the electric control system;
when the driving mechanism drives the inner door frame to slide upwards along the outer door frame, and when the distance sensing mechanism detects that the distance between the upper surface of the inner door frame and the shelter is smaller than or equal to a preset safety distance, the electric control system controls the driving mechanism to stop working.
9. A mast lift stop according to claim 1, wherein the distance sensing mechanism is located elevationally above a fork carriage of a forklift.
10. A forklift comprising a mast lift stop according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921710616.2U CN210973749U (en) | 2019-10-12 | 2019-10-12 | Portal rises stop device and fork truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921710616.2U CN210973749U (en) | 2019-10-12 | 2019-10-12 | Portal rises stop device and fork truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210973749U true CN210973749U (en) | 2020-07-10 |
Family
ID=71445780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921710616.2U Active CN210973749U (en) | 2019-10-12 | 2019-10-12 | Portal rises stop device and fork truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210973749U (en) |
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2019
- 2019-10-12 CN CN201921710616.2U patent/CN210973749U/en active Active
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