CN109506603A - One kind arriving level detecting apparatus and fork truck - Google Patents
One kind arriving level detecting apparatus and fork truck Download PDFInfo
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- CN109506603A CN109506603A CN201710832728.4A CN201710832728A CN109506603A CN 109506603 A CN109506603 A CN 109506603A CN 201710832728 A CN201710832728 A CN 201710832728A CN 109506603 A CN109506603 A CN 109506603A
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- 238000001514 detection method Methods 0.000 claims abstract description 122
- 238000006073 displacement reaction Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 230000007613 environmental effect Effects 0.000 abstract description 14
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
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- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- 238000010276 construction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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Abstract
The invention discloses one kind to arrive level detecting apparatus and fork truck, is related to location detecting technology field.The specific embodiment to level detecting apparatus includes: detection components in place, and detection components include: contact portion, guide part and test section in place；Wherein, one end of guide part is arranged in contact portion, is used for and component contact to be detected；Contact portion can be under the promotion of component to be detected along the axial movement of guide part；Test section is used for: during component to be detected pushes contact portion mobile, detecting the displacement of contact portion.Whether the present invention judges component to be detected in place to desired position by the displacement of detection contact portion, and accuracy is good, stability is high, is not influenced by factors such as the position of component to be detected, type and environmental conditions；The case where being avoided that component inclination to be detected in place generation, the position after guaranteeing component to be detected in place is flushed with the main element for using level detecting apparatus；It is easy to operate.
Description
Technical Field
The invention relates to the technical field of position detection, in particular to an in-place detection device and a forklift.
Background
The intelligent unmanned forklift needs to judge whether the part to be detected is in place to a position required in advance, so that stable and reliable lifting and goods transportation are guaranteed. Therefore, the position of the component to be detected needs to be detected in place, and a basis is provided for subsequent action control such as cargo lifting and transportation.
In the prior art, the in-place detection is usually performed by using a photoelectric switch, as shown in fig. 1, the photoelectric switch 102 is arranged at the middle position of an upper panel 101 of a fork arm of a forklift 100, and whether a component (not shown) to be detected is in place is detected by the photoelectric switch 102.
The prior art has at least the following problems:
1. the position requirement of the part to be detected is high; when the placing position of the component to be detected is not in the detection direction of the photoelectric switch, the in-place condition of the component to be detected cannot be detected, and the problem of collision is easy to occur;
2. the requirement on the type of the component to be detected is high; the part to be detected needs to be provided with a cage car, if the part to be detected lacks the cage car, reflective paper needs to be pasted on the part to be detected, and the operation is complex;
3. the requirement on environmental conditions is high, the photoelectric switch is greatly influenced by environmental factors such as light and the like, and when the environmental conditions such as light and the like are poor, the error of an in-place detection result is large, and the accuracy is poor;
4. the position of the part to be detected after being in place cannot be guaranteed to be flush with the forklift.
Disclosure of Invention
In view of this, the embodiment of the invention provides an in-place detection device and a forklift, which can accurately detect the in-place condition of a to-be-detected component, have high stability, and are not affected by factors such as the position, the type and the environmental conditions of the to-be-detected component; the condition that the part to be detected is inclined in place can be avoided, and the position of the part to be detected after being in place is ensured to be flush with the main body part adopting the in-place detection device; the operation is simple.
To achieve the above object, according to an aspect of an embodiment of the present invention, there is provided an in-place detecting apparatus including an in-place detecting component including: a contact portion, a guide portion, and a detection portion; wherein,
the contact part is arranged at one end of the guide part and is used for contacting with the component to be detected; the contact part can move along the axial direction of the guide part under the pushing of the part to be detected;
the detection section is used for: and detecting the displacement of the contact part in the process of pushing the contact part to move by the component to be detected.
Optionally, the number of in-place detection assemblies is at least two; at least two in-place detection assemblies are not on the same plumb line.
Optionally, the guide portion comprises: a spring, one end of which is arranged on the contact part; when the part to be detected pushes the contact part to move, the spring deforms.
Optionally, the guide portion comprises: and one end of the guide shaft is arranged on the contact part.
Optionally, the guide portion further comprises: a bearing; the bearing is sleeved on the guide shaft.
Optionally, the guide portion further comprises: the spring is sleeved on the guide shaft; when the part to be detected pushes the contact part to move, the spring deforms.
Optionally, the number of the guide parts corresponding to each contact part is even; an even number of guide portions are symmetrically disposed on the contact portion.
Optionally, the detection part comprises:
a displacement sensor for recognizing a displacement of the contact portion by detecting whether the contact portion moves to a detection distance range of the displacement sensor; or,
and a pressure sensor for recognizing the displacement of the contact portion by detecting a pushing pressure of the member to be detected to the contact portion.
Optionally, the in-place detection apparatus according to the embodiment of the present invention further includes: a buffer portion provided in a traveling direction of the contact portion; when the displacement of the contact part exceeds a preset displacement threshold value in the process that the component to be detected pushes the contact part to move, the contact part is abutted against the buffer part.
Optionally, the in-place detection apparatus according to the embodiment of the present invention further includes: the fixing part is provided with a through hole, and the guide part penetrates through the fixing part through the through hole.
According to another aspect of an embodiment of the present invention, there is provided a forklift including: the forklift comprises a forklift body, a pallet fork arm and the in-place detection device provided by the embodiment of the invention; wherein,
the in-place detection device is arranged at the joint of the forklift body and the cargo fork arm.
One embodiment of the above invention has the following advantages or benefits: the in-place detection device provided by the embodiment of the invention is provided with the contact part, the guide part and the detection part, and the displacement of the contact part is detected to determine whether the part to be detected is in place to the required position, so that the in-place condition of the part to be detected can be accurately detected, the influence of factors such as the position, the type and the environmental condition of the part to be detected is avoided, the stability is good, and the operation is simple and convenient; by arranging at least two in-place detection assemblies which are not on the same plumb line, the situation that the part to be detected is inclined in place can be avoided, and the position of the part to be detected after being in place is enabled to be flush with the main body part adopting the in-place detection device.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
Drawings
The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:
FIG. 1 is a schematic diagram of a prior art forklift;
FIG. 2 is a schematic diagram of the construction of an in-position detection device in accordance with some embodiments of the present invention;
FIG. 3 is a schematic diagram of the structure of an in-place detection apparatus according to another embodiment of the present invention;
FIG. 4 is a front view of a fork lift truck according to an embodiment of the present invention;
FIG. 5 is a left side view of FIG. 4;
fig. 6 is a schematic view of the installation of the position detection device in the forklift according to some embodiments of the present invention.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
According to an aspect of an embodiment of the present invention, there is provided an in-position detecting apparatus.
FIG. 2 is a schematic diagram of an in-place detection apparatus according to some embodiments of the invention. As shown in fig. 2, the in-place detecting apparatus includes an in-place detecting assembly 200, and the in-place detecting assembly 200 includes: a contact portion 201, a guide portion 202, and a detection portion (not shown in the figure); wherein,
a contact portion 201 is provided at one end of the guide portion 202 for contacting a member to be detected (not shown in the figure); the contact portion 201 can move along the axial direction of the guide portion 202 under the pushing of the component to be detected;
the detection section is used for: in the process of the member to be detected pushing the contact portion 201 to move, the displacement of the contact portion 201 is detected.
The relative position and the installation manner between the detection portion and the guide portion 202 or the contact portion 201 are not particularly limited in the embodiment of the present invention, as long as the displacement of the contact portion 201 can be detected at the contact portion. The detection part may be mounted on the contact part 201 or the guide part 202, or may be connected to the contact part 201 or the guide part 202 through another connecting member. Of course, the detecting portion may be a member separated from the contact portion 201 or the guide portion 202, for example, one end of the detecting portion and the guide portion 202 away from the contact portion 201 is mounted on the main body member of the in-position detecting apparatus according to the embodiment of the present invention, and the contact portion is not in contact with the guide portion 202.
In practical application, when the main body component of the in-place detection device according to the embodiment of the present invention is moved, the component to be detected contacts the contact portion 201 of the in-place detection assembly 200, so as to push the contact portion 201 to move along the axial direction of the guide portion 202. The detection portion detects the displacement of the contact portion 201 to determine whether the component to be detected is in place to a desired position.
Compared with the prior art that the photoelectric switch is adopted to detect the in-place condition of the component to be detected, the in-place detection device provided by the embodiment of the invention is provided with the contact part, the guide part and the detection part, and the displacement of the contact part is detected to determine whether the component to be detected is in place or not, so that the in-place condition of the component to be detected can be accurately detected without being influenced by the position of the component to be detected, and the arrangement position of the component to be detected does not need to be required to be arranged in the detection direction of the photoelectric; the type requirement of the part to be detected is not specially limited, the part to be detected is not required to be provided with a cage car or be pasted with reflective paper, and the operation is simple and convenient; the method has low requirement on environmental conditions, good stability and high accuracy, and is not influenced by factors such as environmental conditions and the like.
The number of the in-place detecting members 200 in the in-place detecting apparatus may be one, two, or more. In some alternative embodiments, the number of in-position detection assemblies 200 is at least two, and at least two of the in-position detection assemblies 200 are not on the same plumb line. By making at least two in-place detection assemblies 200 not on the same plumb line, the situation that the part to be detected is inclined in place can be avoided, and the position of the part to be detected after in-place is ensured to be flush with the main body part adopting the in-place detection device.
In some embodiments, the guide comprises a spring, such as a compression spring, an extension spring, a torsion spring, or the like. One end of the spring is arranged on the contact part; when the part to be detected pushes the contact part to move, the spring deforms. In one aspect, the spring is capable of guiding a direction of movement of the contact portion to move the contact portion in an axial direction of the spring. On the other hand, when the in-place detection is finished and the in-place detection device is withdrawn, the contact part of the in-place detection device is gradually separated from the part to be detected, and the contact part can automatically reset under the action of the spring, so that the subsequent in-place detection is facilitated.
In other embodiments, the guide portion 202 includes a guide shaft 2022, and one end of the guide shaft 2022 is disposed on the contact portion 201. By adopting the guide shaft 2022, the contact part 201 can be ensured to move along the axis of the guide shaft 2022 in the process that the component to be detected pushes the contact part 201 to move, and the problem of inaccurate in-place detection result caused by unstable moving route of the contact part 201 is prevented.
The guide 202 may also include a bearing 2023; the bearing 2023 is fitted over the guide shaft 2022. The guide shaft 2022 is sleeved with the bearing 2023, so that the guide shaft 2022 can be positioned, and the stability of the guide shaft 2022 is improved; on the other hand, the friction resistance generated by the twisting or axial movement of the guide shaft 2022 during the movement of the contact portion 201 can be reduced, and the abrasion to the main body component of the in-position detection device adopting the embodiment of the invention can be reduced.
The guide portion 202 may further include: the spring 2021 is, for example, a compression spring, an extension spring, a torsion spring, or the like. The spring 2021 is sleeved on the guide shaft 2022; when the member to be detected pushes the contact portion 221 to move, the spring 2021 deforms. When the in-place detection is finished and the in-place detection device is withdrawn, the contact part 201 of the in-place detection device is gradually separated from the component to be detected, and the contact part 201 can automatically reset under the action of the spring 2021, so that the in-place detection is convenient to perform subsequently.
In an alternative embodiment, the number of the guide portions 202 corresponding to each contact portion 201 in the in-position detecting assembly 200 is an even number; an even number of guide portions 202 are symmetrically provided on the contact portion 201. By symmetrically arranging an even number of guide parts 202 on the contact part, the stability of the contact part 201 can be improved, and the situation that the moving direction of the contact part 201 or the guide part 202 is unstable due to the fact that the acting point of the part to be detected to the contact part 201 is not in the center of the contact part 201 or the thrust direction of the part to be detected to the contact part 201 is not in the axial direction of the guide part 202 is prevented, so that the in-place detection accuracy of the in-place detection device of the embodiment of the invention is improved.
In an embodiment of the present invention, the detection unit may include: and a displacement sensor for recognizing the displacement of the contact portion by detecting whether the contact portion moves to a detection distance range of the displacement sensor. The detecting part may be a proximity switch, which is a position switch that can be operated without mechanically directly contacting with a moving part, the distance between the contact part 201 and the proximity switch is continuously reduced when the part to be detected pushes the contact part 201 to move, and when the distance between the contact part 201 and the proximity switch reaches the detecting distance of the proximity switch, the proximity switch can be operated without mechanically contacting and applying any pressure, and a signal is fed back. And judging whether the part to be detected is in place to the required position according to the signal fed back by the proximity switch. In this embodiment, the displacement sensor is used to detect the displacement of the detection portion, so that the detection portion is not affected by light and other environmental factors, and adverse effects of the environmental factors on the in-place detection result can be avoided.
It should be understood by those skilled in the art that the detection section may also include: and a pressure sensor for recognizing the displacement of the contact portion by detecting a pushing pressure of the member to be detected to the contact portion. Illustratively, the detection part comprises a piezoelectric sensor, and during the process that the component to be detected pushes the contact part 201 to move, the contact part 201 continuously presses the piezoelectric sensor or presses the piezoelectric sensor through the guide part 202, and the piezoelectric sensor deforms under the pressing action to generate an electric signal. And judging whether the component to be detected is in place to the required position according to the electric signal generated by the piezoelectric sensor. In this embodiment, the pressure sensor is used to detect the displacement of the detection portion, so that the detection portion is not affected by light and other environmental factors, and adverse effects of the environmental factors on the in-place detection result can be avoided.
The in-place detection device of the embodiment of the invention can comprise: a buffer portion provided in a traveling direction of the contact portion; when the displacement of the contact part exceeds a preset displacement threshold value in the process that the component to be detected pushes the contact part to move, the contact part is abutted against the buffer part. The buffer part is arranged, so that the moving range of the contact part can be limited, and the mechanical impact of the contact part on the main body part of the in-place detection device adopting the application can be reduced.
The in-place detecting device may further include: the fixing part is provided with a through hole, and the guide part penetrates through the fixing part through the through hole. Through setting up the fixed part, be convenient for fix the detection subassembly that targets in place on the main part that adopts the detection device that targets in place of this application. In order to further reduce the installation difficulty of the in-place detection device of the embodiment of the invention and simplify the installation steps, the detection part can be arranged on the fixing part.
Fig. 3 is a schematic structural diagram of an in-place detection device according to another embodiment of the present invention. As shown in fig. 3, the in-place detecting apparatus includes two in-place detecting assemblies 300, and the in-place detecting assembly 300 includes: a contact portion 301, a guide portion 302, a detection portion 303, a buffer portion 304, and a fixing portion 305. Wherein:
a contact portion 301 is provided at one end of the guide shaft 3022 for contacting the member to be detected. In order to increase the contact area of the contact portion 302 with the component to be detected as much as possible to improve the accuracy of the in-place detection, the contact portion 301 is provided in a plate-like structure. The contact portion 301 can move in the axial direction of the guide shaft 3022 by being pushed by the member to be detected. Two guide portions 302 are symmetrically arranged on each contact portion to improve the movement stability of the contact portion 301 and the guide portion 202;
the guide portion 302 includes: a guide shaft 3022, a spring 3021, and a bearing 3023. One end of the guide shaft 3022 is provided on the contact portion 301; the bearing 3023 is sleeved on the guide shaft; the spring 3021 is sleeved on the guide shaft 3022 and located between the contact part 301 and the bearing 3023, and when the component to be detected pushes the contact part to move, the spring 3021 deforms;
the detection portion 303 is a proximity switch, is disposed on the fixing portion 305, and is located between the two guide portions, and is configured to: detecting the displacement of the contact part 301 in the process of pushing the contact part 301 to move by the component to be detected;
the buffer portion 304 is provided in the traveling direction of the contact portion 301. When the displacement of the contact portion 301 exceeds a preset displacement threshold, the contact portion 301 abuts against the buffer portion 305;
the fixing portion 305 is provided with two through holes through which the two guide shafts 3022 corresponding to each contact portion 301 respectively pass. Each guide shaft 3022 is provided on the fixed portion 305 through a connection between the bearing 3023 fitted thereon and the through hole. In actual use, the in-position detecting unit 300 may be fixed to a body member using the in-position detecting apparatus of the present application by the fixing portion 305. For example, a connection hole is provided in the fixing portion 305, and the in-position detecting unit 300 is fixed to the main body member of the in-position detecting apparatus according to the present application by a bolt.
It is to be understood that the features mentioned in the various alternative embodiments above may be combined randomly without departing from the spirit of the invention, without departing from the scope thereof.
According to another aspect of an embodiment of the present invention, a lift truck 400 is provided.
As shown in fig. 4 and 5, the forklift 400 includes: a forklift body 401, a pallet fork arm 402, and an in-place detection device 403 provided by the embodiment of the present invention; wherein,
the in-position detecting device 403 is provided at the junction of the forklift body 401 and the fork arm 402.
In practical application, when the fork arm 402 of the forklift 400 extends below the component to be detected, the forklift 400 moves, the component to be detected contacts with the contact part of the in-place detection device 403, and the contact part is pushed to move along the axial direction of the guide part. The detection part judges whether the component to be detected is in place to a required position by detecting the displacement of the contact part.
The in-place detection device adopted by the forklift in the embodiment of the invention can be any one of various in-place detection devices provided by the first aspect of the invention. The beneficial effects of the forklift adopting various in-position detection devices are as shown in the first aspect of the embodiment of the present invention, and are not described herein again.
When the forklift includes only one fork arm, in some alternative embodiments, an in-position detection arrangement including at least two in-position detection assemblies may be employed. When a fork arm of the forklift extends to a position below the part to be detected, the forklift moves forward, the part to be detected is in contact with the contact part of the in-place detection assembly, and the contact part is pushed to move along the axial direction of the guide part. The detection part judges whether the component to be detected is in place to a required position by detecting the displacement of the contact part. The in-place is finished when the in-place of the part to be detected to the desired position is confirmed by each in-place detecting assembly. By adopting the in-place detection device comprising at least two in-place detection assemblies, the position of the part to be detected after being in place can be ensured to be flush with the forklift.
When the forklift includes two or more forks, in some alternative embodiments, an in-position detection device including two or more in-position detection assemblies may be used, one in-position detection assembly corresponding to the junction of each fork with the forklift body. The in-place is finished when each in-place detection assembly confirms that the part to be detected is in place to the required position. The embodiment of the invention can ensure that the position of the part to be detected after being in place is flush with the forklift.
When the forklift includes two or more forks, in alternative embodiments, two or more in-position detection devices may be used, one at each fork arm connection with the forklift body. And when each in-place detection device confirms that the part to be detected is in place to the required position, the in-place is finished. The embodiment of the invention can ensure that the position of the part to be detected after being in place is flush with the forklift.
Fig. 6 is a schematic view of the installation of the position detection device in the forklift according to some embodiments of the present invention. As shown in fig. 6, the in-place detecting apparatus 403 includes two in-place detecting assemblies 4031, and each in-place detecting assembly 4031 includes: one contact part, two guide parts and one detection part. The guide part includes: guide shaft, spring and bearing. One end of the guide part is arranged on the contact part; the bearing is arranged on the forklift body 401; the spring is sleeved on the guide shaft and positioned between the contact part and the bearing; the detection part is arranged on the forklift body 401 and is positioned between the two guide parts, and the detection part adopts a proximity switch.
In the embodiment shown in fig. 6, after the fork arm 402 of the forklift 400 extends below the to-be-detected member, the forklift 400 moves, the to-be-detected member contacts the contact portion of the in-position detecting assembly 403, the contact portion and the guide shaft are pushed to move in the axial direction of the guide shaft, and the spring is compressed. The bearing is sleeved on the guide shaft, so that the friction resistance of the guide shaft in the moving process can be greatly reduced, and the abrasion of the guide shaft to the forklift body 401 in the moving process is reduced. And in the moving process of the contact part, the distance between the contact part and the proximity switch is gradually reduced, and when the distance between the contact part and the proximity switch reaches the detection distance of the proximity switch, a signal is fed back by the proximity switch. When the detection parts corresponding to the two fork arms 402 both feed back signals, the parts to be detected are judged to be in place to the required positions, and the in-place is finished. Then, the fork arm 402 lifts the part to be inspected, the forklift 400 transports the part to be inspected to a specified position and then puts down the part to be inspected, and the forklift 400 withdraws. During the withdrawal process, the contact portion of the arm 402, the in-position detection device, is reset under the action of the compression spring.
The technical scheme of the embodiment of the invention has the following beneficial effects:
1) whether the part to be detected is in place or not is determined by detecting the displacement of the contact part, the stability is good, the influence of factors such as the position, the type and the environmental condition of the part to be detected is avoided, the in-place condition of the part to be detected can be accurately detected, and the operation is simple and convenient;
2) an in-place detection device or an in-place detection assembly is arranged at the joint of each fork arm and the forklift body, so that the situation that the part to be detected inclines in place can be avoided, and the position of the part to be detected after in place is flush with the main body part adopting the in-place detection device;
3) the guide part comprises a spring, and when the part to be detected leaves the contact part, the contact part can be automatically reset, so that the subsequent in-place detection is facilitated;
4) the guide part comprises a guide shaft, so that the contact part can move along the axis of the guide shaft in the process that the part to be detected pushes the contact part to move, and the problem of inaccurate in-place detection result caused by unstable moving route of the contact part is prevented;
5) the guide shaft is sleeved with the bearing, so that the guide shaft can be positioned, and the friction resistance generated by the rotation of the guide shaft in the moving process of the contact part is reduced as much as possible;
6) the even number of guide parts are symmetrically arranged on the contact part, so that the moving stability of the contact part can be improved, and the accuracy of in-place detection is improved;
7) the displacement sensor or the pressure sensor is adopted to detect the displacement of the contact part, so that the adverse effect of factors such as light and the like on the in-place detection result can be avoided, and the detection result is not influenced by environmental conditions;
8) the buffer part is arranged, so that the moving range of the contact part can be limited, and the mechanical impact of the contact part on the main body part of the in-place detection device adopting the application is reduced;
9) the fixing part is arranged, so that the in-place detection device can be conveniently fixed on the main body component of the in-place detection device.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An in-position detection device, comprising: an in-place detection assembly, the in-place detection assembly comprising: a contact portion, a guide portion, and a detection portion; wherein,
the contact part is arranged at one end of the guide part and is used for contacting with a component to be detected; the contact part can move along the axial direction of the guide part under the pushing of the part to be detected;
the detection section is configured to: and detecting the displacement of the contact part in the process of pushing the contact part to move by the component to be detected.
2. The apparatus of claim 1, wherein the number of in-place detection components is at least two; at least two of the in-place detection assemblies are not on the same plumb line.
3. The device of claim 1 or 2, wherein the guide portion comprises: a spring, one end of which is disposed on the contact portion; when the part to be detected pushes the contact part to move, the spring deforms.
4. The device of claim 1 or 2, wherein the guide portion comprises: a guide shaft, one end of which is disposed on the contact portion.
5. The apparatus of claim 4, wherein the guide further comprises: a bearing; the bearing is sleeved on the guide shaft.
6. The apparatus of claim 4, wherein the guide further comprises: the spring is sleeved on the guide shaft; when the part to be detected pushes the contact part to move, the spring deforms.
7. The apparatus according to claim 1 or 2, wherein the number of the guide portions corresponding to each of the contact portions is an even number, and the even number of the guide portions are symmetrically disposed on the contact portions.
8. The apparatus according to claim 1 or 2, wherein the detection section includes:
a displacement sensor for recognizing a displacement of the contact portion by detecting whether the contact portion moves to a detection distance range of the displacement sensor; or,
and the pressure sensor is used for identifying the displacement of the contact part by detecting the pushing pressure of the part to be detected on the contact part.
9. The apparatus of claim 1 or 2, further comprising: a buffer portion provided in a traveling direction of the contact portion; when the displacement of the contact part exceeds a preset displacement threshold value in the process that the component to be detected pushes the contact part to move, the contact part is abutted to the buffer part.
10. The apparatus of claim 1 or 2, further comprising: the fixing part is provided with a through hole, and the guide part penetrates through the fixing part through the through hole.
11. A forklift, comprising: fork truck body, goods yoke, its characterized in that still includes: an in-position detection apparatus as claimed in any one of claims 1 to 10; wherein,
the in-place detection device is arranged at the joint of the forklift body and the cargo fork arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710832728.4A CN109506603A (en) | 2017-09-15 | 2017-09-15 | One kind arriving level detecting apparatus and fork truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710832728.4A CN109506603A (en) | 2017-09-15 | 2017-09-15 | One kind arriving level detecting apparatus and fork truck |
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| CN109506603A true CN109506603A (en) | 2019-03-22 |
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| CN201710832728.4A Pending CN109506603A (en) | 2017-09-15 | 2017-09-15 | One kind arriving level detecting apparatus and fork truck |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775889A (en) * | 2019-12-03 | 2020-02-11 | 广州市吉特智能科技有限公司 | Depth and stroke detection control switch for forklift pallet fork of unmanned forklift |
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