CN219505800U - Pin shaft inserting and pulling control system, pin shaft inserting and pulling device, pulling device and rescue vehicle - Google Patents
Pin shaft inserting and pulling control system, pin shaft inserting and pulling device, pulling device and rescue vehicle Download PDFInfo
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- CN219505800U CN219505800U CN202320081243.7U CN202320081243U CN219505800U CN 219505800 U CN219505800 U CN 219505800U CN 202320081243 U CN202320081243 U CN 202320081243U CN 219505800 U CN219505800 U CN 219505800U
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Abstract
The utility model discloses a pin shaft plugging and unplugging control system, a pin shaft plugging and unplugging device, a towing device and a rescue vehicle, which comprises a pin shaft plugging and unplugging driving system, a detection block, a main control device, a pin shaft inserting detection switch, a pin shaft unplugging detection switch and a towing driving system; the plug pin shaft driving system is used for driving the pin shaft to stretch; the detection block can synchronously move with the pin shaft; the main control device has the functions of receiving signals and processing the signals; the pin shaft insertion detection switch transmits the detected detection block signal to the main control device; the pin shaft pulling detection switch transmits the detected detection block signal to the main control device; when the main control device receives the signal transmitted by the pin shaft inserting detection switch or the pin shaft extracting detection switch, the main control device can control the traction driving system to execute overturning action. According to the utility model, on the basis of automatically controlling the pin shaft to be plugged and unplugged, the pin shaft state detection switch and the pin shaft state indicator lamp are added, so that humanization and operation safety are greatly improved.
Description
Technical Field
The utility model relates to the field of mechanical equipment, in particular to a plug pin shaft control system applied to a rescue vehicle.
Background
Wheeled vehicles may fail or lose travel ability or be subjected to harsh environments when traveling. The rescue vehicle is a special vehicle specially developed for the situation, the vehicle can be used for field maintenance of the fault vehicle, the fault vehicle can be pulled out of a trapped severe environment by traction, and the fault vehicle can be returned to a repair site by consignment. The supporting and pulling device is one of important parts of the rescue vehicle, the supporting and pulling capacity, the operation convenience, the safety and the like of the device directly determine the rescue capacity of the rescue vehicle, and the plug pin mechanism is a key of the performance of the supporting and pulling device.
The utility model of patent number 201320095080.4 discloses a device for controlling the motion of a supporting and pulling mechanism by two groups of oil cylinders, but a rotary pin shaft of the device needs to be manually inserted and pulled out, is inconvenient to operate and poor in safety, and can achieve a good effect by repeated adjustment for a plurality of times.
The utility model of the patent number CN216659712U discloses a device for controlling the motion of a supporting and pulling mechanism by two groups of oil cylinders, wherein a pin inserting and pulling device adopts a remote controller to control a hydraulic or pneumatic cylinder and other driving devices to automatically control the insertion and pulling, the structure is reliable, the operation is simple and convenient, but whether a pin shaft is completely inserted or pulled out needs short-distance direct observation, the humanization level is low, misoperation cannot be prevented, and the risk of damage of the pin shaft and the supporting and pulling mechanism due to misoperation is high.
Therefore, the utility model designs a novel plug shaft control system, which can greatly improve the humanization and safety of the operation of the traction device in use.
Disclosure of Invention
According to the defects of the prior art, the utility model provides a pin shaft plugging and unplugging control system, which is provided with a pin shaft state detection switch and a pin shaft plugging and unplugging state indicator lamp on the basis of automatically controlling the pin shaft plugging and unplugging, thereby greatly improving humanization and operation safety.
The utility model is realized according to the following technical scheme:
the first aspect of the utility model discloses a plug pin shaft control system, which comprises:
the pin shaft inserting and pulling driving system is used for driving the pin shaft to stretch and retract;
the detection block can synchronously move with the pin shaft;
the main control device has the functions of receiving signals and processing the signals;
the pin shaft insertion detection switch is connected with the main control device and is used for detecting that when the pin shaft is in a complete insertion state, the pin shaft insertion detection switch transmits a detected detection block signal to the main control device;
the pin shaft pulling-out detection switch is connected with the main control device and is used for detecting that when the pin shaft is in a complete pulling-out state, the pin shaft pulling-out detection switch transmits a detected detection block signal to the main control device;
and the traction driving system is connected with the main control device, and when the main control device receives a signal transmitted by the pin shaft insertion detection switch or the pin shaft extraction detection switch, the main control device can control the traction driving system to execute overturning action.
In some embodiments, the system further comprises a remote controller in wireless communication with the master control device for transmitting an input command to the master control device.
In some embodiments, the remote control device further comprises a pin shaft state indicator lamp, wherein the pin shaft state indicator lamp is arranged on the remote control device and comprises a pin shaft insertion indicator lamp and a pin shaft extraction indicator lamp, and the master control device controls the pin shaft insertion indicator lamp and the pin shaft extraction indicator lamp to be on or off according to the detecting switch state.
In some embodiments, the system further comprises a display device connected with the main control device for displaying various states and data in the dragging operation to form a visual control system, and the operation can be correspondingly reminded and alarmed.
The second aspect of the utility model discloses a pin shaft plugging and unplugging device, which is characterized in that:
the plug pin shaft control system is configured.
In some embodiments, further comprising:
a pin shaft;
the latch seat is arranged on the dragging device;
the driving system is arranged at the tail end of the latch seat;
the connecting shaft is used for connecting the driving system and the pin shaft, and the pin shaft stretches out or contracts under the control of the driving system;
the elastic guide cylinder is positioned in the latch seat and is connected with the pin shaft;
the elastic piece is positioned in the bolt seat and sleeved on the elastic guide cylinder, and the elastic piece ejects the pin shaft when the driving system is in an unloading state.
In some embodiments, the device further comprises a tensioning nut screwed on the elastic guide cylinder and used for tensioning the elastic piece so that the elastic piece is in a tensioning state after being installed.
In a third aspect, the utility model discloses a towing apparatus, comprising:
the traction arm is arranged on the rescue vehicle;
the adjusting arm is movably connected to the traction arm;
the pin shaft inserting and pulling device is characterized in that,
the traction arm oil cylinder is arranged between the traction arm and the adjusting arm and used for driving the adjusting arm to move, and the movement state is controlled by the plug pin shaft device;
the bracket arm is hinged at the bottom of the adjusting arm and is used for carrying the rescued vehicle;
the bracket arm oil cylinder is arranged between the adjusting arm and the bracket arm and is used for driving the bracket arm to retract and extend.
In some embodiments, a conversion component for completing the horizontal sliding, overturning and vertical movement of the adjusting arm is arranged between the traction arm and the adjusting arm.
In some embodiments, the traction arm is provided with a slide mechanism, and the adjusting arm is provided with a slide mechanism, and the slide mechanism are in sliding fit to form a conversion component.
In some embodiments, a plurality of bolt holes A for adjusting the height of the adjusting arm are reserved at the upper part of the sliding plate mechanism, and a bolt hole B for overturning the adjusting arm is reserved at the middle part of the sliding plate mechanism; the sliding way mechanism is provided with a bolt hole D at one end close to the sliding plate mechanism, and the pin shaft in the pin inserting and pulling device is inserted into or withdrawn from the bolt hole of the sliding way mechanism and the bolt hole of the sliding plate mechanism to change the movement of the traction arm and the adjusting arm.
In some embodiments, a latch hole C for hanging a chain is reserved at the bottom of the sliding plate mechanism.
In some embodiments, a secondary bracket arm is slidably mounted in the bracket arm, the secondary bracket arm being extended from the bracket arm by a ram for extending the bracket arm.
In some embodiments, the adjustment arm has an adjustment arm leg mounted thereon for supporting the adjustment arm in a folded state.
In some embodiments, the trailing arm has a trailing arm leg mounted thereon for supporting the trailing arm.
The fourth aspect of the utility model discloses a rescue vehicle, which is characterized in that:
the pin shaft plugging and unplugging device is arranged; alternatively, the towing device described above is installed.
The utility model has the beneficial effects that:
the pin shaft position detection function is added, the corresponding indicator lamp is added on the remote controller, humanization is improved, and requirements on operators are reduced.
The pin shaft position detection signal is used in a control program, and damage to the pin shaft and the supporting and pulling mechanism caused by misoperation is prevented through program limitation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.
In the drawings:
FIG. 1 is a schematic diagram of a rescue vehicle;
FIG. 2 is a schematic diagram of a pulling device;
FIG. 3 is a schematic view of a slide mechanism;
FIG. 4 is a schematic illustration of a skateboard mechanism;
FIG. 5 is a schematic diagram of a conventional pin plugging and unplugging device;
FIG. 6 is a schematic diagram of the installation of a pin plugging and unplugging device;
fig. 7 is a schematic drawing of a stretching device (a is a first stretching process, b is a second stretching process, c is a third stretching process, d is a fourth stretching process, and e is a fifth stretching process);
FIG. 8 is a schematic diagram of a novel pin plugging and unplugging device;
FIG. 9 is a schematic diagram of a conventional plug pin control system;
fig. 10 is a schematic diagram of a novel plug pin control system.
The attached drawings are identified: 1: auxiliary rescue equipment; 2: a chassis; 3: a supporting and pulling device; 4: a vehicle to be rescued; 5: a traction arm; 6: a traction arm cylinder; 7: adjusting arm supporting legs; 8: an adjustment arm; 9: the pin shaft device is inserted and pulled out; 10: a bracket arm oil cylinder; 11: a bracket arm; 12: an auxiliary bracket arm; 13: traction arm support legs; 14: a slideway mechanism; 15: a slide plate mechanism; 16: a drive system; 17: an elastic member; 18: a latch seat; 19: a pin shaft; 20: tensioning the nut; 21: a connecting shaft; 22: an elastic piece guide cylinder; 23: a detection block; 24: the pin shaft is pulled out of the detection switch; 25: the pin shaft is inserted into the detection switch; 26: a master control device; 27: a pin shaft driving system is plugged and pulled out; 28: a traction drive system; 29: pin shaft state indicator lamp; 30: a display device.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the existing pin shaft plugging and unplugging control system (shown in fig. 5 and 9), a remote controller is adopted to control driving devices such as a hydraulic cylinder or a pneumatic cylinder to automatically control plugging and unplugging, but whether the pin shaft is completely plugged or unplugged needs short-distance direct observation, and damage is likely to be caused when the pin shaft is forced to operate because a user does not notice whether the pin shaft is completely plugged (unplugged) in time. For example, due to the multiple steps of supporting and pulling operations, the pin inserting and pulling operations are frequent, the user can easily ignore the state of the pin shaft, and the pin shaft can be deformed or even broken due to the fact that the pin shaft is deformed by twisting caused by uneven stress when the adjusting arm is operated in the incompletely inserted (pulled out) state of the pin shaft, and the turnover hole where the pin shaft is located can be damaged and deformed. Therefore, the problem of damage to the supporting and pulling mechanism and the pin shaft cannot be effectively solved at present.
The utility model provides a novel pin shaft plugging and unplugging control system, which is characterized in that a pin shaft state detection switch and a pin shaft plugging and unplugging state indicator lamp are added on the basis of automatically controlling a pin shaft plugging and unplugging, so that humanization and operation safety are greatly improved.
As shown in fig. 1, the rescue vehicle is composed of auxiliary rescue equipment 1, a chassis 2, a supporting and pulling device 3 and the like, has multiple functions of lifting, pulling, lifting and pulling and the like, and is suitable for obstacle clearing operations of highways, urban roads and the like. The plug pin device is arranged on the supporting and pulling device 3, the supporting and pulling device 3 is controlled and regulated by a hydraulic system and is arranged at the rear part of the rescue vehicle through a trailer saddle, when the rescue vehicle runs in a supporting way, the supporting and pulling device 3 and the rescue vehicle 4 form a whole through a chain or other mechanisms, and the rescue vehicle drags the whole formed by the two to move together.
The supporting and pulling device 3 is one of important components of the rescue vehicle, and can be matched with other equipment on the rescue vehicle to rescue and carry out supporting and conveying on the rescue vehicle in various modes such as lifting, pulling and the like. Each performance of the supporting and pulling device 3 determines the rescue capability of the rescue vehicle, and the pin shaft plugging and unplugging device is a key of the performance of the supporting and pulling device.
The detailed structure of the supporting and pulling device 3 is shown in fig. 2, and comprises a pulling arm 5, a pulling arm oil cylinder 6, an adjusting arm supporting leg 7, an adjusting arm 8, a plug pin shaft device 9, a supporting arm oil cylinder 10, a supporting arm 11 and an auxiliary supporting arm 12, and a pulling arm supporting leg 13.
The traction arm oil cylinder 6 is used for driving the movement of the adjusting arm 8, and the switching of the horizontal sliding, overturning movement and vertical movement of the adjusting arm 8 is controlled by the plug pin shaft device 9. The bracket cylinder 10 is used to drive the retraction and extension of the bracket 11. The secondary bracket arm 12 may be driven by a hydraulic cylinder to extend from the bracket arm 11 for extending the bracket arm. The adjusting arm 8 is provided with an adjusting arm supporting leg 7, and the traction arm 5 is provided with a traction arm supporting leg 13. The traction arm 5 is provided with a slide way mechanism 14, the adjusting arm 8 is provided with a slide plate mechanism 15, the slide plate mechanism 15 is reserved with a plurality of bolt holes, and one end of the slide way mechanism 14 close to the slide plate mechanism 15 is also provided with the same bolt hole D. Wherein the pin hole a is used for adjusting the height of the adjusting arm 8, the pin hole B is used for overturning the adjusting arm 8, the pin hole C is used for hanging a chain, and the movement of the traction arm 5 and the adjusting arm 8 is changed by inserting or withdrawing the pin shaft in the pin shaft device 9 into or from the pin hole of the slide mechanism 14 and the pin hole of the slide plate mechanism 15, as shown in fig. 3 and 4.
The pin shaft inserting and extracting device 9 has a detailed structure shown in fig. 8, and comprises a pin shaft 19, an elastic member 17, a pin seat 18, a driving system 16, a connecting shaft 21, an elastic member guide cylinder 22, a tensioning nut 20, a pin shaft extracting detection switch 24, a pin shaft inserting detection switch 25 and a detection block 23, wherein the pin seat 18 is arranged on the slideway mechanism 14 as shown in fig. 6. The connecting shaft 21 is used for connecting the driving system 16 and the pin shaft 19, and can be inserted into or withdrawn from the pin hole of the slide mechanism 14 and the pin hole of the slide mechanism 15 under the control of the driving system 16, so as to change the movement of the traction limiting arm 5 and the adjusting arm 8. The elastic member guide cylinder 22 serves to guide the elastic member 17, thereby preventing the elastic member 17 from being laterally offset. The elastic member 17 ejects the latch 19 to function as a pre-latch when the drive system 16 is in the unloaded state. The tensioning nut 20 is used for tensioning the elastic member 17 so that the elastic member 17 is in a tensioned state after being mounted. The elastic member 17 can adjust the pushing force to the pin 19 by tightening the nut 20. The bending plate where the detection block 23 is located is integrated with the elastic piece guide cylinder 22 and moves synchronously with the pin 19. The pin extraction detection switch 24 and the pin insertion detection switch 25 are installed on the latch seat 18 and are proximity switches, which are electrically connected with the main control device 26, and the proximity switches do not need to be in direct contact with moving parts. The power of the device is provided by a hydraulic or compressed air system, the remote controller sends an operation instruction to the main control device 26, and the main control device 26 controls the pin inserting and pulling action of the pin inserting and pulling device by controlling the pin inserting and pulling driving system 27, as shown in fig. 10.
As shown in FIG. 10, when the pin 19 is completely inserted or pulled out, the detection block 23 reaches the sensing range of the proximity switch, and the proximity switch generates an electric signal to provide a control instruction for the main control device 26. In the fully inserted state of the pin 19, the pin insertion detection switch 25 transmits a pin insertion signal, such as a high level, to the main control device 26. In the fully extracted state of the pin 19, the pin extraction detection switch 24 sends a pin extraction signal, such as a high level, to the master control device 26. The main control device 26 performs a turning action according to the pin detection switch state (see table 1), and only when the pin 19 is completely inserted or completely pulled out, the supporting and pulling driving system 28 is controlled to further control the pulling device to perform the turning action, so that manual misoperation is avoided.
Table 1 main control device turnover judging table
| Pin shaft insertion detection switch | 1 | 0 | 0 | 1 |
| Pin shaft pulling-out detection switch | 0 | 1 | 0 | 1 |
| Status of | Unlocked state | State of lock | Intermediate state | Failure of |
| Action | Allowing flipping | Allowing flipping | Inhibit overturning | Inhibit overturning |
The pin shaft state indicator lamp 29 is arranged on the remote controller, the remote controller and the main control device 26 are in wireless communication through a remote controller receiver, and the pin shaft state indicator lamp 29 comprises a pin shaft insertion indicator lamp and a pin shaft extraction indicator lamp. The main control device 26 controls the pin shaft to be inserted into the indicator lamp and the pin shaft to be pulled out of the indicator lamp to be turned on or off according to the state of the detecting switch, and at the moment, a user can timely master the state of the pin shaft 19 according to the indicator lamp, so that safe operation is performed.
The display device 30 is electrically connected with the main control device 26, displays various states (including pin shaft states) and data in the dragging operation, forms a visual control system, and can correspondingly remind and alarm the operation.
The working principle of the traction supporting device and the pin inserting and pulling device is as follows:
a. in the inactive condition, the whole towing device 3 is in a folded condition (as shown in fig. 7 a), supported and fixed by the towing arm legs 13 together with the saddle of the chassis 2.
b. When the traction device is unfolded, the traction arm oil cylinder 6 is contracted, the adjusting arm 8 is translated backwards until reaching the minimum stroke of the oil cylinder (as shown in B in fig. 7), at the moment, the bolt hole B on the sliding plate mechanism 15 is exactly aligned with the pin 19, the driving system 16 in the pin inserting and pulling device 9 is in an unloading state, the elastic piece 17 is in a compression state, so that the pin 19 is inserted into the bolt hole B, and the adjusting arm 8 is limited by the pin 19 and can only perform rotary motion.
c. After the pin 19 is inserted, the traction arm cylinder 6 is extended, and at this time, the adjustment arm 8 is rotated along the pin hole B until the adjustment arm 8 reaches the vertical position (as shown in fig. 7 c). At this time, the slide mechanism 15 is in a fitting state with the slide mechanism 14, the driving system 16 is started to pull out the pin 19, then the traction arm oil cylinder 6 is shortened, the adjusting arm 8 moves downwards, and the slide mechanism 15 is also completely clamped into the slide mechanism 14 (as shown in d in fig. 7).
d. The trailing arm cylinder 10 is then activated to extend the trailing arm 11, the trailing arm cylinder 6 is adjusted to adjust the entire trailing device to the appropriate position (as shown in e in fig. 7), and the trailing arm 11 is then secured to the vehicle 4 to be rescued, extending the auxiliary trailing arm 12 as necessary for extending the trailing arm 11.
e. The extension bracket cylinder 11 will be lifted by the rescue vehicle 4 while retracting the trailing arm leg 13 (see fig. 1). The pin shafts are used for fixing all the arm frames during towing driving to prevent the oil cylinders from being directly stressed.
It should be noted that the plug shaft detection switch in the utility model may be a non-contact proximity switch or a contact travel switch; the driving system in the utility model can be pneumatic or hydraulic; the main control device in the utility model can be a PLC, a singlechip and the like; the elastic member in the present utility model may be a spring.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features contained in other embodiments, but not others, combinations of features of different embodiments are equally meant to be within the scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use the above embodiments in combination according to known technical solutions and technical problems to be solved by the present utility model.
The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present utility model without departing from the scope of the utility model.
Claims (16)
1. A plug pin control system, comprising:
the pin shaft inserting and pulling driving system is used for driving the pin shaft to stretch and retract;
the detection block can synchronously move with the pin shaft;
the main control device has the functions of receiving signals and processing the signals;
the pin shaft insertion detection switch is connected with the main control device and is used for detecting that when the pin shaft is in a complete insertion state, the pin shaft insertion detection switch transmits a detected detection block signal to the main control device;
the pin shaft pulling-out detection switch is connected with the main control device and is used for detecting that when the pin shaft is in a complete pulling-out state, the pin shaft pulling-out detection switch transmits a detected detection block signal to the main control device;
and the traction driving system is connected with the main control device, and when the main control device receives a signal transmitted by the pin shaft insertion detection switch or the pin shaft extraction detection switch, the main control device can control the traction driving system to execute overturning action.
2. The plug pin control system of claim 1, further comprising:
and the remote controller is in wireless communication with the main control device and is used for transmitting an input instruction to the main control device.
3. The plug pin control system of claim 2, further comprising:
the pin shaft state indicator lamp is arranged on the remote controller and comprises a pin shaft insertion indicator lamp and a pin shaft extraction indicator lamp, and the main control device controls the pin shaft insertion indicator lamp and the pin shaft extraction indicator lamp to be turned on or turned off according to the detection switch state.
4. The plug pin control system of claim 1, further comprising:
the display device is connected with the main control device and is used for displaying various states and data in the dragging operation to form a visual control system and correspondingly reminding and alarming the operation.
5. The utility model provides a plug round pin axle device which characterized in that:
a plug pin control system as claimed in any one of claims 1 to 4.
6. The pin plugging device according to claim 5, further comprising:
a pin shaft;
the latch seat is arranged on the towing device;
the driving system is arranged at the tail end of the latch seat;
the connecting shaft is used for connecting the driving system and the pin shaft, and the pin shaft stretches out or contracts under the control of the driving system;
the elastic guide cylinder is positioned in the latch seat and is connected with the pin shaft;
the elastic piece is positioned in the bolt seat and sleeved on the elastic guide cylinder, and the elastic piece ejects the pin shaft when the driving system is in an unloading state.
7. The pin plugging device according to claim 6, further comprising:
the tensioning nut is screwed on the elastic guide cylinder and used for tensioning the elastic piece, so that the elastic piece is in a tensioning state after being mounted.
8. A towing apparatus, comprising:
the traction arm is arranged on the rescue vehicle;
the adjusting arm is movably connected to the traction arm;
the pin inserting and pulling device according to any one of claim 5 to 7,
the traction arm oil cylinder is arranged between the traction arm and the adjusting arm and used for driving the adjusting arm to move, and the movement state is controlled by the plug pin shaft device;
the bracket arm is hinged at the bottom of the adjusting arm and is used for carrying the rescued vehicle;
the bracket arm oil cylinder is arranged between the adjusting arm and the bracket arm and is used for driving the bracket arm to retract and extend.
9. A towing attachment in accordance with claim 8 wherein:
and a conversion part which is used for finishing the horizontal sliding, overturning and vertical movement of the adjusting arm is arranged between the traction arm and the adjusting arm.
10. A towing attachment in accordance with claim 9 wherein:
the traction arm is provided with a slide way mechanism, the adjusting arm is provided with a slide plate mechanism, and the slide plate mechanism and the slide way mechanism are in sliding fit to form a conversion part.
11. A towing attachment in accordance with claim 10 wherein:
the upper part of the sliding plate mechanism is reserved with a plurality of bolt holes A for adjusting the height of the adjusting arm, and the middle part of the sliding plate mechanism is reserved with a bolt hole B for overturning the adjusting arm;
the sliding way mechanism is provided with a bolt hole D at one end close to the sliding plate mechanism, and the pin shaft in the pin inserting and pulling device is inserted into or withdrawn from the bolt hole of the sliding way mechanism and the bolt hole of the sliding plate mechanism to change the movement of the traction arm and the adjusting arm.
12. A towing attachment in accordance with claim 11 wherein:
the bottom of the sliding plate mechanism is reserved with a bolt hole C for hanging a chain.
13. A towing attachment in accordance with claim 8 wherein:
the auxiliary supporting arm is slidably arranged in the supporting arm, and the auxiliary supporting arm extends out of the supporting arm through the oil cylinder and is used for extending the supporting arm.
14. A towing attachment in accordance with claim 8 wherein:
the adjusting arm is provided with an adjusting arm supporting leg for supporting the adjusting arm in a folded state.
15. A towing attachment in accordance with claim 8 wherein:
the traction arm is provided with traction arm supporting legs for supporting the traction arm.
16. A rescue vehicle, characterized in that:
-mounting a plug pin device according to any one of claims 5 to 7; alternatively, a towing attachment as claimed in any one of claims 8 to 15 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320081243.7U CN219505800U (en) | 2023-01-13 | 2023-01-13 | Pin shaft inserting and pulling control system, pin shaft inserting and pulling device, pulling device and rescue vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320081243.7U CN219505800U (en) | 2023-01-13 | 2023-01-13 | Pin shaft inserting and pulling control system, pin shaft inserting and pulling device, pulling device and rescue vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219505800U true CN219505800U (en) | 2023-08-11 |
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ID=87531195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320081243.7U Active CN219505800U (en) | 2023-01-13 | 2023-01-13 | Pin shaft inserting and pulling control system, pin shaft inserting and pulling device, pulling device and rescue vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219505800U (en) |
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2023
- 2023-01-13 CN CN202320081243.7U patent/CN219505800U/en active Active
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