Wireless detection oil cylinder

Abstract

The utility model provides a wireless detection oil cylinder which comprises a loosening detection assembly which comprises a loosening detection piston movably installed in a first installation groove. The clamping detection assembly comprises a clamping detection piston movably mounted in the second mounting groove; the signal transmitting assembly comprises a radio transmitter used for transmitting radio signals and a touch switch used for controlling the on-off state of the radio transmitter, and when the wireless detection oil cylinder is in the clamping state, the piston rod abuts against the clamping detection piston; the switch contact position of the clamping detection rod abuts against the light touch switch so as to trigger the radio transmitter to send a radio signal. When the wireless detection oil cylinder is in a relaxed state, the piston rod abuts against the relaxed detection piston, the relaxed detection position of the relaxed detection piston shifts, and the switch contact position of the clamping detection rod abuts against the touch switch through the air channel so as to trigger the radio transmitter to send a radio signal.

Description

TECHNICAL FIELD

[0001] The application relates to the field of detecting oil cylinders, in particular to a wireless detecting oil cylinder. BACKGROUND

[0002] With the rapid development of Internet of Things technology, the intelligent and wireless monitoring demand of detecting oil cylinders for industrial automation equipment is increasing. In various industrial production scenes, real-time acquisition of working state information of detecting oil cylinders and transmission of the information to control terminals through wireless communication have become key links for improving production efficiency and ensuring stable operation of equipment. The detecting oil cylinder in the prior art usually adopts a method based on airflow detection to determine the motion state of the oil cylinder. The working principle is mainly to utilize airflow changes in the oil cylinder, to sense airflow fluctuations through a pressure sensor or a flow sensor, to determine whether the oil cylinder is in a clamping or loosening state, and to transmit the detection signal through wired or wireless means.

[0003] However, this airflow detection method has obvious technical defects. On the one hand, airflow fluctuations in industrial environments are complex and changeable, and external airflow interference can easily lead to misjudgment of the detection signal, which cannot accurately reflect the real working state of the detecting oil cylinder. On the other hand, this detection method has extremely high requirements for the sealing performance of the oil cylinder. With the long-term use of the equipment, the aging and wear of the oil cylinder sealing element are inevitable. Once the sealing performance is weakened, the airflow state in the oil cylinder will change, resulting in detection failure and unstable monitoring of the motion state of the oil cylinder. In addition, the signal transmission method of the existing detecting oil cylinder also has the problem of insufficient adaptability in the Internet of Things communication scene, which is difficult to meet the strict requirements of industrial automation equipment for real-time, accuracy and stability of detection data. Therefore, a new detecting oil cylinder technical solution is needed, which can overcome the influence of airflow fluctuations, reduce the dependence on sealing performance and adapt to Internet of Things communication. SUMMARY

[0004] The application provides a wireless detecting oil cylinder which can overcome the influence of airflow fluctuations, reduce the dependence on sealing performance and adapt to Internet of Things communication.

[0005] In order to achieve the above object, the technical scheme provides a wireless detection oil cylinder, comprising: a driving assembly comprising a piston rod; an oil cylinder body provided with an active space for the piston rod to move and a first mounting groove and a second mounting groove communicated with the active space, a gas passage being provided between the first mounting groove and the second mounting groove; a relaxation detection assembly comprising a relaxation detection piston movably mounted in the first mounting groove; a clamping detection assembly comprising a clamping detection piston movably mounted in the second mounting groove; a signal transmitting assembly comprising a radio transmitter for transmitting radio signals and a micro switch for controlling the on-off state of the radio transmitter, wherein the micro switch is arranged relative to a switch contact position on the clamping detection piston; when the wireless detection oil cylinder is in a clamping state, the piston rod abuts against the clamping detection piston, and the switch contact position of the clamping detection piston abuts against the micro switch to trigger the radio transmitter to send radio signals; when the wireless detection oil cylinder is in a relaxation state, the piston rod abuts against the relaxation detection piston, the relaxation detection position of the relaxation detection piston is displaced, and the switch contact position of the clamping detection piston is made to abut against the micro switch through the gas passage to trigger the radio transmitter to send radio signals.

[0006] Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:

[0007] Precise and stable detection: by arranging the clamping detection assembly and the relaxation detection assembly, the physical contact between the piston rod and the detection piston is used to trigger the signal transmission. This pure physical detection method is completely not affected by the airflow in the industrial environment, and compared with the traditional airflow detection scheme, it can accurately judge the state of the oil cylinder and avoid signal misjudgment.

[0008] Reduced sealing requirement: as the detection does not depend on the airflow change in the oil cylinder, the sealing performance requirement of the oil cylinder is greatly reduced. Even if the sealing element is aged and the performance is weakened after long-term use of the equipment, it will not affect the detection of the movement state of the oil cylinder, effectively improving the reliability and service life of the equipment in actual application.

[0009] 3. Adapt to Internet of Things application: the signal transmitting assembly is built-in with a radio transmitter, which can directly transmit signals to realize seamless connection with the Internet of Things system. In the industrial automation scene, the working state of the oil cylinder can be transmitted to the control terminal in real time and stably, meeting the strict requirements of automatic equipment on detection data and assisting intelligent production management. BRIEF DESCRIPTION OF DRAWINGS

[0010] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the explanations thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0011] Figure 1 is a schematic view of the wireless detection oil cylinder provided by the present scheme in a relaxation state.

[0012] Figure 2 is a schematic diagram of the wireless detection of the oil cylinder in the clamping state provided by the present application.

[0013] Figure 3 is a structural schematic diagram of the wireless detection of the oil cylinder provided by the present application.

[0014] Figure 4 is a partial enlarged view of the abutting position of the signal emitting assembly and the clamping detection assembly of the present application.

[0015] In the figure: 10 - driving assembly, 11 - piston rod, 12 - driving piece, 20 - oil cylinder body, 21 - piston rod moving space, 211 - first moving space, 212 - second moving space, 22 - first installation groove, 23 - second installation groove, 24 - air channel, 30 - release detection assembly, 31 - release detection piston, 311 - release detection position, 40 - clamping detection assembly, 41 - clamping detection piston, 411 - switch contact position, 42 - steel ball, 50 - signal emitting assembly, 51 - second limit cover, 52 - tactile switch, 53 - wireless transmitter, 51 - first limit cover. DETAILED DESCRIPTION

[0016] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to designate the same elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not meant to represent all embodiments consistent with one or more embodiments of the present description. Rather, they are merely examples of apparatuses and methods consistent with some aspects of one or more embodiments of the present description as detailed in the appended claims.

[0017] It should be noted that the steps of the corresponding method are not necessarily performed in the order shown and described in the present description in other embodiments. In some other embodiments, the steps included in the method can be more or less than described in the present description. In addition, a single step described in the present description can be divided into multiple steps for description in other embodiments, and multiple steps described in the present description can be combined into a single step for description in other embodiments.

[0018] Embodiment One

[0019] As shown in Figure 3 the present application provides a wireless detection of the oil cylinder, comprising

[0020] The driving assembly 10 comprises a piston rod 11.

[0021] The oil cylinder body 20 is provided with a piston rod activity space 21 for the piston rod 11 to move in, and a first installation slot 22 and a second installation slot 23 which are communicated with the piston rod activity space 21, and a gas passage 24 is arranged between the first installation slot 22 and the second installation slot 23;

[0022] The relaxation detection assembly 30 includes a relaxation detection piston 31 movably arranged in the first installation slot 22

[0023] The clamping detection assembly 40 includes a clamping detection piston 41 movably arranged in the second installation slot 23;

[0024] The signal transmitting assembly 50 includes a radio transmitter 53 for transmitting radio signals, and a micro switch for controlling the on-off state of the radio transmitter 53, wherein the micro switch is arranged relative to a switch contact position 411 on the clamping detection piston 41;

[0025] When the wireless detection oil cylinder is in the clamping state, the piston rod 11 abuts against the clamping detection piston 41, the switch contact position 411 of the clamping detection piston 41 abuts against the micro switch to trigger the radio transmitter 53 to send radio signals; when the wireless detection oil cylinder is in the relaxation state, the piston rod 11 abuts against the relaxation detection piston 31, the relaxation detection position 311 of the relaxation detection piston 31 is displaced, and the switch contact position 411 of the clamping detection piston 41 is caused to abut against the micro switch through the gas passage 41 to trigger the radio transmitter 53 to send radio signals.

[0026] Specifically, the wireless detection oil cylinder provided by the scheme is provided with a signal transmitting assembly 50, and the relaxation detection assembly 30 and the clamping detection assembly 40 both trigger the signal transmitting assembly 50 to transmit corresponding radio signals through physical and mechanical movements, so as to realize wireless detection of the wireless detection oil cylinder. Compared with the detection oil cylinder in the prior art, the wireless detection oil cylinder provided by the scheme can not be affected by airflow fluctuations, and thus the situation that the detection oil cylinder cannot stably detect the movement state due to weakened sealing performance of the detection oil cylinder will not occur.

[0027] Regarding the driving assembly 10 of the scheme:

[0028] The driving assembly 10 of the scheme includes a piston rod 11 and a driving member 12 for controlling the movement stroke of the piston rod 11, and the driving member 12 drives the piston rod 11 to send a displacement stroke in the piston rod activity space 21 of the oil cylinder body 20.

[0029] In some embodiments, one end of the driving member 12 is connected to the piston rod 11, and the other end is movably arranged on the oil cylinder body 20 through a hinge movable member, and the movement of the piston rod 11 is driven by the movement of the driving member 21. As shown in Figure 1 and Figure 2 As shown, Figure 1is a schematic view of the wireless detection oil cylinder in a relaxed state according to the present application, Figure 2 is a schematic view of the wireless detection oil cylinder in a clamping state according to the present application, it can be seen that the driving member 12 is rotated to cause the piston rod 11 to have a different displacement stroke.

[0030] Regarding the oil cylinder body 20 according to the present application,

[0031] The oil cylinder body 20 according to the present application includes a piston rod activity space 21 which is arranged in a through manner, and the piston rod 11 is arranged in the piston rod activity space 21 to send a displacement stroke, as shown in Figure 1 and Figure 2 When the wireless detection oil cylinder is in a clamping state, the piston rod 11 moves towards a direction away from or out of the piston rod activity space 21, and when the wireless detection oil cylinder is in a relaxed state, the piston rod 11 moves towards a direction close to or into the piston rod activity space 21.

[0032] In some embodiments, the piston rod activity space 21 includes a first activity space 211 and a second activity space 212 arranged in a through manner from top to bottom, wherein the opening width of the first activity space 211 is smaller than the opening width of the second activity space 212, and the piston rod 11 includes a first piston part, a second piston part and a third piston part arranged in a width increasing order from top to bottom, the third piston part is arranged to move in the second activity space 212, and the second piston part is arranged to move in the first activity space 211 and the second activity space 212.

[0033] Specifically, the width of the third piston part is greater than the opening width of the first activity space 211 and not greater than the opening width of the second activity space 212. Preferably, the width of the third piston part matches the opening width of the second activity space 212, so as to ensure that the third piston part is always stably located in the second activity space 212 to have a stroke change.

[0034] The width of the second piston part is not greater than the opening width of the first activity space 211. Preferably, the width of the second piston part matches the opening width of the first activity space 211, so as to ensure that the second piston part can stably have a stroke change in the first activity space 211, and since the width of the third piston part matches the width of the second activity space 212, the second piston part can still be in a stable movement state when it is arranged to move in the second activity space 212.

[0035] In some embodiments, the height of the second piston part is not greater than the height of the first activity space 211, and when the second piston part is located in the first activity space 211, the second piston part abuts against the clamping detection assembly 40.

[0036] In order to enable the clamping detection assembly 40 to detect the state of the piston rod 11, the second installation groove 23 of the oil cylinder body 20 is communicated with the first movable space 211, and the axial directions of the second installation groove 23 and the first movable space 211 are orthogonal, so as to facilitate the movement of the clamping detection piston 41 in the second installation groove 23. Similarly, in order to enable the release detection assembly 30 to detect the state of the piston rod 11, the first installation groove 21 of the oil cylinder body 20 is communicated with the second movable space 212, and the first installation groove 21 is located at the bottom end of the second movable space 212.

[0037] Specifically, the clamping detection piston 41 is arranged in the second installation groove 23, and the end of the clamping detection piston 41 protrudes from the second installation groove 23 in a free state. The release detection piston 31 is arranged in the first installation groove 22 and also protrudes from the first installation groove 22 in a free state. When the piston rod 11 is in a release state, the third piston portion of the piston rod 11 presses the release detection piston 31 to move downward. When the piston rod 11 is in a clamping state, the second piston portion of the piston rod 11 presses the clamping detection piston 41 to move inward.

[0038] In addition, the first installation groove 22 and the second installation groove 23 of the present scheme are communicated through the air channel 24. Since the clamping detection piston 41 and the release detection piston 31 are arranged in the first installation groove 22 and the second installation groove 23 respectively, the air channel 24 is a closed space. When the release detection piston 31 is pressed to move downward, the air pressure in the air channel 24 is compressed to push the clamping detection piston 41 on the other side of the air channel 24 to move, and then the switch contact position 411 of the clamping detection piston 41 abuts against the touch switch to trigger the radio transmitter 53 to send a radio signal.

[0039] Regarding the release detection assembly 30 of the present scheme:

[0040] The release detection assembly 30 of the present scheme includes a release detection piston 31 arranged movably in the first installation groove 22. The release detection piston 31 is provided with a release detection position 311 relative to the side of the air channel 24. The release detection position 311 is a concave arc surface relative to the side surface of the release detection piston 31. Correspondingly, the signal transmission assembly 50 includes a first limiting cover 54 arranged in the air channel 24 and relative to the release detection position 311.

[0041] It should be noted that when the release detection piston 31 is in a natural state, the first limiting cover 54 is arranged relative to the most concave position of the release detection position 311. When the release detection piston 31 is pressed by the piston rod 11, the release detection piston 31 moves downward, and the first limiting cover 54 is pressed in the air channel 24.

[0042] It should be noted that, due to the compressibility and flowability of the gas, in the case of increased gas pressure, the gas will apply pressure to the second mounting groove 23 through the air passage 24, thereby pushing the clamping detection piston 41 to move, and the clamping detection piston 41 overcomes the friction and other resistance under the action of high gas pressure, and moves inward along the second mounting groove 23, and then the switch contact position 411 of the clamping detection piston 41 abuts against the tactile switch.

[0043] Regarding the clamping detection assembly 40 of the present scheme:

[0044] The clamping detection assembly 40 of the present scheme comprises a clamping detection piston 41 movably arranged in the second mounting groove 23, and the clamping detection piston 41 is provided with a switch contact position 411 opposite to the side of the tactile switch, and the switch contact position 411 is a circular arc surface recessed relative to the side surface of the clamping detection piston 41. Correspondingly, the signal transmitting assembly 50 comprises a second limiting cover 51 opposite to the switch contact position 411 and a tactile switch connected to the second limiting cover 51.

[0045] In some embodiments, the tactile switch is a hole spring.

[0046] It should be noted that, when the clamping detection piston 41 is in a natural state, the second limiting cover 51 is arranged opposite to the most recessed position of the switch contact position 411, and when the clamping detection piston 41 is pressed by the piston rod 11, the clamping detection piston 41 moves inward and the second limiting cover 51 and the switch contact position 441 abut, so as to drive the second limiting cover 51 to push the tactile switch 52 to trigger the radio transmitter 53 to send a signal.

[0047] In some embodiments, the clamping detection assembly 40 comprises a steel ball 42 arranged at one end of the clamping detection piston 41 close to the piston cover rod 41, and the clamping detection piston 41 contacts the piston rod 11 through the steel ball 42.

[0048] It should be noted that, since the relaxation detection assembly 30 indirectly acts on the clamping detection piston 41 through the air passage 24 to trigger the radio transmitter 53 to send a radio signal, and the clamping detection assembly 40 directly acts on the radio transmitter 53 to send a radio signal, the different compression degrees of the trigger switch 42 of the radio transmitter 53 can be used to distinguish between the relaxation state and the compression state.

[0049] The wireless detection oil cylinder can realize wireless detection of the state of the oil cylinder through the cooperative work of the driving assembly, the oil cylinder body, the relaxation detection assembly, the clamping detection assembly and the signal emitting assembly, the movement of the piston rod triggers the action of the relaxation detection piston and the clamping detection piston, and then the signal emitting assembly sends a wireless signal, the triggering mode of the physical and mechanical movement is different from the prior art, and the influence of airflow fluctuation and weakened sealing performance on detection can be avoided.

[0050] Those skilled in the art should understand that each technical feature of the above embodiments can be combined arbitrarily, and in order to make the description simple, each technical feature in the above embodiments is not described in all possible combinations, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0051] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A wireless detection ram, characterized by, The utility model relates to a wireless detection oil cylinder, including: a driving assembly (10) comprising a piston rod (11); an oil cylinder body (20) provided with a piston rod movement space (21) for the piston rod (11) to move in, and a first mounting groove (22) and a second mounting groove (23) in communication with the piston rod movement space (21), wherein a gas passage (24) is arranged through the first mounting groove (22) and the second mounting groove (23); a relaxation detection assembly (30) comprising a relaxation detection piston (31) movably arranged in the first mounting groove (22); a clamping detection assembly (40) comprising a clamping detection piston (41) movably arranged in the second mounting groove (23); a signal transmitting assembly (50) comprising a radio transmitter (53) for transmitting radio signals, and a micro switch for controlling the on-off state of the radio transmitter (53), wherein the micro switch is arranged relative to a switch contact position (411) on the clamping detection piston (41); when the wireless detection oil cylinder is in a clamping state, the piston rod (11) abuts against the clamping detection piston (41), the switch contact position (411) of the clamping detection piston (41) abuts against the micro switch to trigger the radio transmitter (53) to send radio signals; when the wireless detection oil cylinder is in a relaxation state, the piston rod (11) abuts against the relaxation detection piston (31), the relaxation detection position (311) of the relaxation detection piston (31) is displaced, and the switch contact position (411) of the clamping detection piston (41) is caused to abut against the micro switch through the gas passage (24) to trigger the radio transmitter (53) to send radio signals.

2. The wireless sensing ram as set forth in claim 1, wherein, The piston rod movement space (21) comprises a first movement space (211) and a second movement space (212) arranged in sequence from top to bottom, wherein the opening width of the first movement space (211) is smaller than the opening width of the second movement space (212), and the piston rod (11) comprises a first piston part, a second piston part and a third piston part arranged in sequence from top to bottom in terms of width, wherein the third piston part is arranged to move in the second movement space (212), and the second piston part is arranged to move in the first movement space (211) and the second movement space (212).

3. The wireless sensing ram as set forth in claim 2, wherein, The width of the third piston part is greater than the opening width of the first movement space (211) and not greater than the opening width of the second movement space (212).

4. The wireless sensing ram of claim 2, wherein, The width of the second piston part is not greater than the opening width of the first movement space (211), and the height of the second piston part is not greater than the height of the first movement space (211).

5. The wireless sensing ram of claim 1, wherein, The clamping detection piston (41) is arranged in the second mounting groove (23) and protrudes from the second mounting groove (23) in a free state, and the relaxation detection piston (31) is arranged in the first mounting groove (22) and also protrudes from the first mounting groove (22) in a free state, wherein when the piston rod (11) is in a relaxation state, the third piston part of the piston rod (11) presses the relaxation detection piston (31) to move downward, and when the piston rod (11) is in a clamping state, the second piston part of the piston rod (11) presses the clamping detection piston (41) to move inward.

6. The wireless sensing ram of claim 1, wherein, The relaxation detection assembly (30) comprises a relaxation detection piston (31) movably arranged in the first mounting groove (22), and the relaxation detection piston (31) is provided with a relaxation detection position (311) on the side of the air channel (24), and the relaxation detection position (311) is a concave arc surface relative to the side surface of the relaxation detection piston (31), and the signal emitting assembly (50) comprises a first limiting cover (54) arranged in the air channel (24) and relative to the relaxation detection position (311).

7. The wireless sensing ram of claim 6, wherein, When the relaxation detection piston (31) is in a natural state, the first limiting cover (54) is arranged relative to the most concave position of the relaxation detection position (311), and when the relaxation detection piston (31) is pressed by the piston rod (11), the relaxation detection piston (31) moves downward, so that the first limiting cover (54) and the relaxation detection position (311) abut, to drive the first limiting cover (54) to be extruded in the air channel (24).

8. The wireless sensing ram of claim 1, wherein, The clamping detection assembly (40) comprises a clamping detection piston (41) movably arranged in the second mounting groove (23), and the clamping detection piston (41) is provided with a switch contact position (411) on the side of the air channel (24), and the switch contact position (411) is a concave arc surface relative to the side surface of the clamping detection piston (41), and the signal emitting assembly (50) comprises a second limiting cover (51) opposite to the switch contact position (411) and a micro switch connected with the second limiting cover (51).

9. The wireless sensing ram of claim 8, wherein, When the clamping detection piston (41) is in a natural state, the second limiting cover (51) is arranged relative to the most concave position of the switch contact position (411), and when the clamping detection piston (41) is pressed by the piston rod (11), the clamping detection piston (41) moves inward, so that the second limiting cover (51) and the switch contact position (411) abut, to drive the second limiting cover (51) to push the micro switch to trigger the radio transmitter (53) to send a signal.

10. The wireless sensing ram of claim 8, wherein, The clamping detection assembly (40) comprises a steel ball (42) arranged on the end of the clamping detection piston (41) close to the piston rod (11), and the clamping detection piston (41) is in contact with the piston rod (11) through the steel ball (42).

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