CN210083119U - Vehicle tailboard control circuit module - Google Patents
Vehicle tailboard control circuit module Download PDFInfo
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- CN210083119U CN210083119U CN201920693241.7U CN201920693241U CN210083119U CN 210083119 U CN210083119 U CN 210083119U CN 201920693241 U CN201920693241 U CN 201920693241U CN 210083119 U CN210083119 U CN 210083119U
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Abstract
The utility model discloses a vehicle tailboard control circuit module, which relates to the automobile field and comprises an electric cabinet, a hydraulic power unit and a control box, wherein the electric cabinet is arranged at the tail part of a vehicle and is connected with the hydraulic power unit; through installing diode D additional at the control box, the anodal board button SQ7 wiring end 2 that turns over is connected to diode D, and rising button SQ8 wiring end 1 is connected to diode D negative pole, turns over board button SQ7 wiring end 1 electric connection and rises button SQ8 wiring end 1, when the tailboard rises to target in place (upper position), can also turn over the board after making tailboard (panel) target in place, carries out the operation of turning over the board of tailboard, need not to sink the support and turns over the board.
Description
Technical Field
The utility model relates to an automotive filed especially relates to a vehicle tailboard control circuit module.
Background
With the rapid development of modern society, the form of trucking of goods has become an important component of modern logistics. When the goods van is parked and then is unloaded, the tail part of the goods van is generally required to be provided with the tail plate of the car, so that the goods are conveyed into or out of the carriage along the tail plate of the car, and the safe and smooth operation of the loading and unloading is ensured. When the conventional vehicle tail plate is used, devices such as an oil cylinder and the like are needed to enable the vehicle tail plate to realize lifting action, and a common lifting oil way system of the vehicle tail plate cannot well balance the pressure in the oil cylinder, so that the pressure fluctuation is large.
SUMMERY OF THE UTILITY MODEL
To prior art shortcoming, the utility model discloses a vehicle tailboard control circuit module can also turn over plate control through the convenient back that targets in place of control box control tailboard, can be directly perceived, the board action that turns over of accurate regulation and control tailboard.
The concrete technical characteristics are as follows:
a control circuit module of a vehicle tail plate comprises an electric control box arranged at the tail of a vehicle, the electric control box is connected with a hydraulic power unit, a lifting oil cylinder and a swing oil cylinder of the vehicle tail plate are connected with the hydraulic power unit, a control box is arranged on a U-shaped frame of the vehicle tail plate and is connected with the hydraulic power unit, the control module also comprises a battery E and a motor starter, the negative electrode of the battery E is grounded, the positive electrode of the battery E is connected with the input end of the motor starter after passing through a power switch S, the control box comprises a descending button SQ6, a flap button SQ7 and an ascending button SQ8, a protective tube FU of the terminal 1 of the descending button SQ6 is connected to the front terminal of a wire duct of a wire dividing plate CN1 after passing through a power switch S, the terminal 1 of the descending button SQ6 is electrically connected with a flap button 7 and a terminal 1 of an ascending button SQ8, the terminal 1 of the descending button SQ6 is connected with the front terminal of a ⑥ wire duct of the wire dividing plate CN1, the terminal 2 of the descending button SQ6 is connected with the front terminal of a wire duct of a ④ wire duct of a wire dividing plate CN 6862, the wire duct of the connecting button CN 419, the terminal of the diode D, the terminal of the flap button SQ7 is connected with the flap button CN 53, the flap button CN 8653, the terminal of the flap button CN, the terminal of the flap button CN 8672, the control box is connected with the control box, the control panel CN 8672, the control panel CN 72.
Furthermore, the electric cabinet comprises a standby button SQ1, a descending button SQ2, a turning button SQ3 and an ascending button SQ4, wherein a terminal 2 of the ascending button SQ4 is connected with a rear terminal of a ② slot of the distribution board CN1, a terminal 2 of the turning button SQ3 is connected with a rear terminal of a ③ slot of the distribution board CN1, a terminal 2 of the descending button SQ2 is connected with a rear terminal of a ④ slot of the distribution board CN1, a terminal 1 of the ascending button SQ4 is connected with a rear terminal of an ⑤ slot of the distribution board CN1, and a terminal 1 of the descending button SQ2 is respectively connected with a rear terminal of a ⑤ slot of the distribution board CN1 and a rear terminal of a;
the terminal 1 of the flap button SQ7 is electrically connected with the terminal 1 of the lifting button SQ8, so that the tail board (panel) can be turned after being in place.
Furthermore, rear wiring terminals of wire grooves ①, ②, ② 0 and ② 1 of the wire distribution plate CN1 are sequentially connected with front wiring terminals of wire grooves ①, ②, ③ and ④ of the wire distribution plate CN2 respectively, rear wiring terminals of wire grooves ① and ② of the wire distribution plate CN2 are connected with an input end of the motor starter, a rear wiring terminal of a wire groove ③ of the wire distribution plate CN2 is grounded after passing through a two-position three-way electromagnetic directional valve, a rear wiring terminal of a wire groove ④ of the wire distribution plate CN2 is grounded after passing through a first-stage two-position two-way descending unloading valve and a second-stage two-position two-way descending unloading valve.
Terminal 1 of standby button SQ1 is connected to terminal 1 of drop button SQ2, and terminal 2 of standby button SQ1 is left vacant.
Furthermore, the hydraulic power unit is used for maintaining the counterweight pressure of a lifting oil cylinder in a tail plate structure of the vehicle and improving the stability, the hydraulic power unit is connected with the lifting oil cylinder and a swing oil cylinder, the hydraulic power unit is contained in the tail plate structure, the tail plate structure comprises a mounting frame, the lifting oil cylinder and the swing oil cylinder, the lifting oil cylinder and a U-shaped frame are mounted on the mounting frame, one end of the U-shaped frame is connected with a tail plate, the swing oil cylinder is also connected with the lower end of the tail plate, the swing oil cylinder, the lifting oil cylinder and the U-shaped frame cooperatively control the motion of the tail plate, the hydraulic power unit comprises an oil tank, the oil tank is connected with an oil circuit control module, an oil circuit control unit is arranged in the oil circuit control module, two sides of the oil circuit control module are connected with a left balance hose and a right balance, the tail end of the first oil cylinder connecting pipe is respectively connected with the lifting oil cylinders on two sides, the right balance hose is connected with one end of the right three-way pipe, the other two ends of the right three-way pipe are connected with a second oil cylinder connecting pipe, and the tail end of the second oil cylinder connecting pipe is connected with the swing oil cylinder;
the oil passage control unit includes:
the oil absorption filter is used for filtering impurities of hydraulic oil in the oil tank;
the hydraulic pump is used for driving hydraulic oil to provide hydraulic pressure;
the motor is used for driving the hydraulic pump to operate;
the check valve is used for preventing the hydraulic oil from flowing back;
the two-position three-way electromagnetic directional valve is used for changing the flow direction of hydraulic oil and controlling the lifting oil cylinder and the swinging oil cylinder to stretch and retract;
the superposition overflow valve is used for preventing the hydraulic pump from outputting too large hydraulic pressure and controlling the overall hydraulic pressure;
the two-position two-way descending unloading valve is used for preventing hydraulic oil from entering the channel when the hydraulic pump operates;
and the descending speed regulating valve is used for controlling the passing speed of the hydraulic oil and preventing the internal hydraulic pressure from being reduced too fast.
Furthermore, the oil tank is connected with the input end of the oil absorption filter, the output end of the oil absorption filter is connected with the oil inlet of the hydraulic pump, the hydraulic pump is connected with the motor, the oil outlet of the hydraulic pump is connected with the inlet of the one-way valve, the outlet of the one-way valve is connected with the oil inlet P of the two-position three-way electromagnetic directional valve, the oil outlet B of the two-position three-way electromagnetic directional valve is connected with the lifting oil cylinder;
the oil inlet of the superposition overflow valve is connected with the oil tank, and the oil outlet of the superposition overflow valve is connected with the inlet of the one-way valve;
an oil inlet P of the two-position three-way electromagnetic directional valve is connected with an oil inlet of a two-position two-way descending unloading valve, and an oil outlet of the two-position two-way descending unloading valve is connected with the descending speed regulating valve and then connected with an oil tank.
Furthermore, the number of the two-position two-way descending unloading valves is two, the oil inlet of the two-position three-way electromagnetic directional valve is firstly connected with the oil inlet of a first-stage two-position two-way descending unloading valve, the oil outlet of the first-stage two-position two-way descending unloading valve is then connected with the oil inlet of a second-stage two-position two-way descending unloading valve, and the oil outlet of the second-stage two-position two-way descending unloading valve is connected with the oil tank after passing.
The utility model has the advantages that: install diode D additional through the control box, diode D positive pole is connected and is turned over board button SQ7 wiring end 2, and rising button SQ8 wiring end 1 is connected to diode D negative pole, turns over board button SQ7 wiring end 1 electric connection and rises button SQ8 wiring end 1, when the tailboard rises to target in place (upper position), can also turn over the board after making tailboard (panel) target in place, carries out the operation of turning over the board of tailboard, need not to sink the support and turns over the board.
Drawings
FIG. 1 is a schematic diagram of a control circuit of the present invention;
FIG. 2 is a schematic diagram of the hydraulic power unit of the present invention;
FIG. 3 is a schematic view of the tail plate of the present invention in use;
FIG. 4 is a schematic view of the turning plate state of the tail plate of the present invention;
fig. 5 is a schematic diagram of the oil passage control unit of the present invention.
The labels in the figure are:
a battery E, a power switch S, a fuse FU, a branching plate CN1, a branching plate CN2, a standby button SQ1, a descending button SQ2, a flap button SQ3, an ascending button SQ4, a descending button SQ6, a flap button SQ7, an ascending button SQ8, a diode D, a travel switch KR, an oil tank 11, an oil passage control unit 15, a left balance hose 18, an oil passage control module 19, a first cylinder connecting pipe 20, a lift cylinder 23, a right balance hose 24, a right tee pipe 25, a second cylinder connecting pipe 26, a swing cylinder 27, a left tee pipe 28, a mounting bracket 31, a U-shaped bracket 32, a tail plate 33, an oil suction filter 52, a hydraulic pump 53, a superimposed overflow valve 54, a check valve 55, a two-position three-way electromagnetic directional valve 56, a motor 61, a one-stage two-position two-way descent unloading valve 62, a two-stage two-position two-way descent unloading valve 63, a descent speed regulation valve, the end part of the tail plate is connected with a shaft 74, the mounting frame is connected with a shaft 76, the mounting frame is connected with a shaft 77, the mounting frame is connected with a shaft 78, an electric cabinet 85, a control box 87, a hydraulic power unit 89 and a motor starter 97.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed description.
Please refer to the attached drawings, the embodiment is a vehicle tail board control circuit module, which is used for controlling the lifting process of a vehicle tail board, and comprises an electric control box 85 arranged at the tail part of a vehicle, wherein the electric control box 85 is connected with a hydraulic power unit 89, a lifting oil cylinder 23 and a swing oil cylinder 27 of the vehicle tail board are connected with the hydraulic power unit 89, a control box 87 is arranged on a U-shaped frame 32 of the vehicle tail board, the control box 87 is connected with the hydraulic power unit 89, the vehicle tail board control circuit module further comprises a battery E and a motor starter 97, the negative electrode of the battery E is grounded, the positive electrode of the battery E is connected with the input end of the motor starter 97 after passing through a power switch S, the control box 87 comprises a falling button SQ6, a turning-over button SQ7 and an ascending button 8, a protective tube FU of the falling button SQ6 terminal 1 is connected with the front terminal of a wire duct of a wire dividing board CN ① of the dividing board CN1 after passing through the rear terminal, the falling button 6 terminal 1 is connected with a turning-over button 7 terminal, the rising button 8 terminal 1, the terminal 1 is electrically connected with the turning-over button, the turning-over button SQ6 terminal, the turning-over button SQ-over button 4124 terminal is connected with a front terminal of a dividing board CN ⑥, the turning-over-board, the front terminal, the switching-over terminal-over terminal-over-.
In this embodiment, the electric cabinet 85 includes a standby button SQ1, a down button SQ2, a flap button SQ3 and an up button SQ4, wherein a terminal 2 of the up button SQ4 is connected with a rear terminal of an ② slot of the splitter plate CN1, a terminal 2 of the flap button SQ3 is connected with a rear terminal of an ③ slot of the splitter plate CN1, a terminal 2 of the down button SQ2 is connected with a rear terminal of a ④ slot of the splitter plate CN1, a terminal 1 of the up button SQ4 is connected with a rear terminal of a ⑤ slot of the splitter plate CN1, and a terminal 1 of the down button SQ2 is respectively connected with a rear terminal of a ⑤ slot of the splitter plate CN1 and a rear terminal of a ⑥ slot after passing;
the terminal 1 of the flap button SQ7 is electrically connected with the terminal 1 of the lifting button SQ8, so that the tail plate 33 (panel) can be turned over after being in place.
In this embodiment, rear terminals of the wire slots ①, ②, ② 0 and ② 1 of the wire distribution board CN1 are respectively connected with front terminals of the wire slots ①, ②, ③ and ④ of the wire distribution board CN2 in sequence, rear terminals of the wire slots ① and ② of the wire distribution board CN2 are connected with an input end of the motor starter 97, a rear terminal of the wire slot ③ of the wire distribution board CN2 is grounded after passing through the two-position three-way electromagnetic directional valve 56, a rear terminal of the wire slot ④ of the wire distribution board CN2 is grounded after passing through the first-stage two-position two-way descending unloading valve 63 and the second-stage two-position two-way descending unloading valve 64.
Terminal 1 of standby button SQ1 is connected to terminal 1 of drop button SQ2, and terminal 2 of standby button SQ1 is left vacant.
The hydraulic power unit 89 is used for maintaining the counterweight pressure of the lifting oil cylinder 23 in the vehicle tail plate structure and improving the stability, the tail plate structure comprises a mounting frame 31, a swing oil cylinder 27, the lifting oil cylinder 23 and a U-shaped frame 32 are mounted on the mounting frame 31, one end of the U-shaped frame 32 is connected with a tail plate 33, the swing oil cylinder 27 is also connected with the lower end of the tail plate 33, the swing oil cylinder 27, the lifting oil cylinder 23 and the U-shaped frame 32 cooperatively control the motion of the tail plate 33, the tail plate comprises an oil tank 11 for supplying hydraulic oil, the oil tank 11 is connected with an oil circuit control module 19, an oil circuit control unit 15 is arranged in the oil circuit control module 19, two sides of the oil circuit control module 19 are connected with a left balance hose 18 and a right balance hose 24, the left balance hose 18 is connected with one end of a left three-way pipe 28, the other two ends of the left three, the right balance hose 24 is connected with one end of a right three-way pipe 25, the other two ends of the right three-way pipe 25 are connected with a second oil cylinder connecting pipe 26, and the tail end of the second oil cylinder connecting pipe 26 is connected with a swing oil cylinder 27;
the oil passage control unit 15 includes:
an oil suction filter 52 for filtering impurities of the hydraulic oil in the oil tank 11;
a hydraulic pump 53 for driving hydraulic oil to supply hydraulic pressure;
the motor 61 is used for driving the hydraulic pump 53 to operate;
a check valve 55 for preventing the hydraulic oil from flowing backward;
the two-position three-way electromagnetic directional valve 56 is used for changing the flow direction of hydraulic oil at proper time and controlling the lifting oil cylinder 23 and the swinging oil cylinder 27 to stretch and retract;
the superposition type overflow valve 54 is used for preventing the hydraulic pump 53 from outputting too large hydraulic pressure and controlling the overall hydraulic pressure;
a two-position two-way descending unloading valve for preventing hydraulic oil from entering the passage when the hydraulic pump 53 is in operation;
and a descending speed regulating valve 64 for controlling the passing speed of the hydraulic oil and preventing the internal hydraulic pressure from being reduced too fast.
In this embodiment, the oil tank 11 is connected to the input end of the oil absorption filter 52, the output end of the oil absorption filter 52 is connected to the oil inlet of the hydraulic pump 53, the hydraulic pump 53 is connected to the motor 61, the oil outlet of the hydraulic pump 53 is connected to the inlet of the check valve 55, the outlet of the check valve 55 is connected to the oil inlet P of the two-position three-way electromagnetic directional valve 56, the oil outlet B of the two-position three-way electromagnetic directional valve 56 is connected to the lift cylinder 23, and the oil;
the oil inlet of the superposition overflow valve 54 is connected with the oil tank 11, and the oil outlet of the superposition overflow valve 54 is connected with the inlet of the one-way valve 55;
an oil inlet P of the two-position three-way electromagnetic directional valve 56 is connected with an oil inlet of a two-position two-way descending unloading valve, and an oil outlet of the two-position two-way descending unloading valve is connected with the descending speed regulating valve 64 and then connected with the oil tank 11.
The number of the two-position two-way descending unloading valves of the embodiment is two, the oil inlet of the two-position three-way electromagnetic directional valve 56 is firstly connected with the oil inlet of a first-stage two-position two-way descending unloading valve 62, the oil outlet of the first-stage two-position two-way descending unloading valve 62 is then connected with the oil inlet of a second-stage two-position two-way descending unloading valve 63, and the oil outlet of the second-stage two-position two-way descending unloading valve 63 is connected with the oil tank 11.
The vehicle tail plate structure comprises a mounting frame 31 and a tail plate 33, wherein a mounting frame upper connecting shaft 76 is arranged at the upper part of the mounting frame 31, the mounting frame upper connecting shaft 76 is connected with one end of a U-shaped frame 32, a mounting frame middle connecting shaft 77 is arranged at the middle part of the mounting frame 31, the mounting frame middle connecting shaft 77 is connected with one end of a swing oil cylinder 27, a mounting frame lower connecting shaft 78 is arranged at the lower end of the mounting frame 31, the mounting frame lower connecting shaft 78 is connected with one end of a lifting oil cylinder 23, a reinforcing plate 71 is arranged at one end of the U-shaped frame 32 far away from the mounting frame 31, the reinforcing plate 71 is rotatably connected with the U-shaped frame 32, a reinforcing plate bottom connecting shaft 73 is arranged at the lower end of the lifting oil cylinder 23 far away from the mounting frame 31, a tail plate end part upper connecting shaft 74 is arranged at the lower end, one end of the swing oil cylinder 27 far away from the mounting frame 31 is connected with the lower connecting shaft 72 at the end part of the tail plate. The lifting oil cylinder can drive the U-shaped frame to rotate relative to the mounting frame when stretching out and drawing back, so that the tail plate structure integrally lifts, and when the swinging oil cylinder stretches out and draws back, the tail plate and the U-shaped frame rotate relative to each other, so that the tail plate is driven to horizontally swing or vertically erect.
In a specific using process, when the tail plate needs to ascend (or swing upwards) (namely the lifting oil cylinder 23 stretches out or the swinging oil cylinder 27 stretches out), the motor 61 is started, the hydraulic pump 53 starts to pump hydraulic oil to the lifting oil cylinder 23, meanwhile, the two-position three-way electromagnetic directional valve 56 is started, the hydraulic oil enters the oil inlet P of the two-position three-way electromagnetic directional valve 56 through the one-way valve 55, flows to the oil outlet B (oil outlet A) from the P end and then flows into the lifting oil cylinder 23 (swinging oil cylinder 27). The superimposed overflow valve 54 is used for basically maintaining the counterweight pressure (hydraulic pressure) unchanged, when the hydraulic pressure is too high, the superimposed overflow valve 54 is opened, the redundant hydraulic oil directly flows back to the oil tank 11 through the superimposed overflow valve 54, and due to the action of the check valve 55 and the closed two-position two-way descending unloading valve, the internal pressure of the lifting cylinder 23 (the swing cylinder 27) is unchanged, and the hydraulic pressure before the superimposed overflow valve 54 is opened is maintained.
When the tail plate needs to descend (or turn over downwards) (namely the lifting oil cylinder 23 retracts or the swing oil cylinder 27 retracts), the motor 61 is closed, the two-position two-way descending unloading valve is controlled to start, the internal pressure of the lifting oil cylinder 23 (the swing oil cylinder 27) is high, hydraulic oil flows back, flows into the descending speed regulating valve 64 through the two-position two-way descending unloading valve and finally returns to the oil tank 11, meanwhile, the descending speed regulating valve 64 prevents the flow rate of the hydraulic oil from being too high, hydraulic pressure is prevented from being excessively reduced, and stable retraction of the lifting oil cylinder 23 (the swing oil cylinder 27) can be maintained.
The above embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. A vehicle tail plate control circuit module is characterized by comprising an electric control box (85) arranged at the tail of a vehicle, wherein the electric control box (85) is connected with a hydraulic power unit (89), a lifting oil cylinder (23) and a swinging oil cylinder (27) of a vehicle tail plate are connected with the hydraulic power unit (89), a U-shaped frame (32) of the vehicle tail plate is provided with a control box (87), the control box (87) is connected with the hydraulic power unit (89), the vehicle tail plate control circuit module also comprises a battery E and a motor starter (97), the negative pole of the battery E is grounded, the positive pole of the battery E is connected with the input end of the motor starter (97) after passing through a power switch S, the control box (87) comprises a falling button SQ6, a turning plate button SQ7 and a rising button SQ8, a protective tube FU of the falling button SQ8 terminal 6861 is connected with the front terminal of a wire groove of a wire dividing plate 73742 of a wire distribution plate CN 6 after passing through the rear terminal, the falling button 6 is electrically connected with the front terminal of the turning plate 7 terminal, the rising button SQ 84 is electrically connected with the falling button SQ 396342 terminal, the falling button SQ6 terminal is electrically connected with the front terminal of the dividing plate ⑥ terminal of the dividing plate, the CN button SQ 24, the CN2 terminal of the dividing plate is connected with the CN1 terminal of the CN1, the CN2 terminal of;
the rear terminals of ①, ②, ② 0 and ② 1 wire grooves of a branching board CN1 are respectively connected with the front terminals of ①, ②, ③ and ④ wire grooves of a branching board CN2 in sequence, the rear terminals of ① and ② wire grooves of the branching board CN2 are connected with the input end of a motor starter (97), the rear terminal of a ③ wire groove of the branching board CN2 is grounded after passing through a two-position three-way electromagnetic reversing valve (56), the rear terminal of a ④ wire groove of the branching board CN2 is grounded after passing through a primary two-position two-way descending unloading valve (62) and a secondary two-position two-way descending unloading valve (63), and the output end of the motor starter (97) is connected with.
2. The vehicle tailgate control circuit module according to claim 1, wherein said electric control box (85) comprises a standby button SQ1, a down button SQ2, a flap button SQ3 and an up button SQ4, wherein a terminal 2 of the up button SQ4 is connected to a rear terminal of ② slot of the splitter CN1, a terminal 2 of the flap button SQ3 is connected to a rear terminal of ③ slot of the splitter CN1, a terminal 2 of the down button SQ2 is connected to a rear terminal of ④ slot of the splitter CN1, a terminal 1 of the up button SQ4 is connected to a rear terminal of ⑤ slot of the splitter CN1, and a terminal 1 of the down button SQ2 is connected to a rear terminal of ⑤ slot of the splitter CN1 and a rear terminal of ⑥ slot after passing through a travel switch KR.
3. The vehicle tailgate control circuit module according to claim 1, wherein the hydraulic power unit (89) is connected to the lift cylinder (23) and the swing cylinder (27), the hydraulic power unit (89) is included in the tailgate structure, the tailgate structure comprises a mounting frame (31), the lift cylinder (23) and the swing cylinder (27), the lift cylinder (23) and the U-shaped frame (32) are mounted on the mounting frame (31), one end of the U-shaped frame (32) is connected to the tailgate (33), the swing cylinder (27) is also connected to the lower end of the tailgate (33), the swing cylinder (27), the lift cylinder (23) and the U-shaped frame (32) cooperatively control the movement of the tailgate (33), the vehicle tailgate control circuit module is characterized in that the hydraulic power unit (89) comprises an oil tank (11), the oil tank (11) is connected to the oil circuit control module (19), and the oil circuit control unit (15) is disposed in the oil circuit control module (19), two sides of the oil way control module (19) are connected with a left balance hose (18) and a right balance hose (24), the left balance hose (18) is connected with one end of a left three-way pipe (28), the other two ends of the left three-way pipe (28) are connected with a first oil cylinder connecting pipe (20), the tail end of the first oil cylinder connecting pipe (20) is respectively connected with lifting oil cylinders (23) at two sides, the right balance hose (24) is connected with one end of a right three-way pipe (25), the other two ends of the right three-way pipe (25) are connected with a second oil cylinder connecting pipe (26), and the tail end of the second oil cylinder connecting pipe (26) is connected with a swing oil;
the oil passage control unit (15) includes:
the oil suction filter (52) is used for filtering impurities of the hydraulic oil in the oil filter box (11);
a hydraulic pump (53) for driving hydraulic oil to supply hydraulic pressure;
the motor (61) is used for driving the hydraulic pump (53) to operate;
a check valve (55) for preventing the hydraulic oil from flowing backward;
the two-position three-way electromagnetic directional valve (56) is used for changing the flow direction of the hydraulic oil at the right moment;
the superposition type overflow valve (54) is used for avoiding overlarge output hydraulic pressure of the hydraulic pump (53) and controlling the size of the whole hydraulic pressure;
a two-position two-way descending unloading valve for preventing hydraulic oil from entering the passage when the hydraulic pump (53) is in operation;
and the descending speed regulating valve (64) is used for controlling the passing speed of the hydraulic oil and preventing the internal hydraulic pressure from being reduced too fast.
4. The vehicle tail-board control circuit module according to claim 3, characterized in that the oil tank (11) is connected with an input end of an oil suction filter (52), an output end of the oil suction filter (52) is connected with an oil inlet of a hydraulic pump (53), the hydraulic pump (53) is connected with a motor (61), an oil outlet of the hydraulic pump (53) is connected with an inlet of a one-way valve (55), an outlet of the one-way valve (55) is connected with an oil inlet of a two-position three-way electromagnetic directional valve (56), and oil outlets of the two-position three-way electromagnetic directional valve (56) are respectively connected with two lifting oil cylinders (23);
an oil inlet of the superposition overflow valve (54) is connected with the oil tank (11), and an oil outlet of the superposition overflow valve (54) is connected with an inlet of the one-way valve (55);
an oil inlet of the two-position three-way electromagnetic directional valve (56) is connected with an oil inlet of a two-position two-way descending unloading valve, and an oil outlet of the two-position two-way descending unloading valve is connected with the descending speed regulating valve (64) and then is connected with the oil tank (11).
5. The vehicle tailgate control circuit module according to claim 3, wherein the two-position two-way lowering unloading valve is two, an oil inlet of the two-position three-way electromagnetic directional valve (56) is connected with an oil inlet of a first-stage two-position two-way lowering unloading valve (62), an oil outlet of the first-stage two-position two-way lowering unloading valve (62) is connected with an oil inlet of a second-stage two-position two-way lowering unloading valve (63), and an oil outlet of the second-stage two-position two-way lowering unloading valve (63) is connected with the oil tank (11) after passing through the lowering speed regulating valve (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920693241.7U CN210083119U (en) | 2019-05-15 | 2019-05-15 | Vehicle tailboard control circuit module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920693241.7U CN210083119U (en) | 2019-05-15 | 2019-05-15 | Vehicle tailboard control circuit module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210083119U true CN210083119U (en) | 2020-02-18 |
Family
ID=69478680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920693241.7U Active CN210083119U (en) | 2019-05-15 | 2019-05-15 | Vehicle tailboard control circuit module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210083119U (en) |
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2019
- 2019-05-15 CN CN201920693241.7U patent/CN210083119U/en active Active
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