CN113799720A - Tank truck rear anti-collision device - Google Patents
Tank truck rear anti-collision device Download PDFInfo
- Publication number
- CN113799720A CN113799720A CN202110981333.7A CN202110981333A CN113799720A CN 113799720 A CN113799720 A CN 113799720A CN 202110981333 A CN202110981333 A CN 202110981333A CN 113799720 A CN113799720 A CN 113799720A
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- mounting seat
- collision
- rotating shaft
- tank truck
- plate
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- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000000087 stabilizing effect Effects 0.000 claims description 31
- 238000013016 damping Methods 0.000 claims description 10
- 230000006872 improvement Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/023—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/22—Tank vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R2019/026—Buffers, i.e. bumpers of limited extent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Vibration Dampers (AREA)
Abstract
The invention provides a tank truck tail anti-collision device, which comprises a mounting seat, an anti-collision plate and a first anti-collision mechanism, wherein the anti-collision plate is positioned on one side of the mounting seat far away from the tank truck tail, the first anti-collision mechanism comprises a rotating shaft, a torsional spring, a rotating disc, a sliding strip, a sliding block and a connecting rod, the rotating shaft is rotatably connected inside the mounting seat, the torsional spring is fixedly arranged inside the mounting seat, the torsional spring is sleeved on the annular side surface of the rotating shaft, the inner wall of the torsional spring is tightly connected with the annular side surface of the rotating shaft, the rotating disc is fixedly connected with the rotating shaft, namely the rotating disc is rotatably connected inside the mounting seat through the rotating shaft, the sliding strip is slidably connected inside the mounting seat, the sliding block is rotatably connected on the surface of the rotating disc through a pin shaft and is slidably connected inside the sliding strip, one end of the connecting rod is fixedly connected with the anti-collision plate, the other end of the connecting rod penetrates through the mounting seat and is fixedly connected with the sliding strip, the invention preliminarily lightens the deformation degree of the tank truck tail after being impacted, the influence of vibration is reduced preliminarily.
Description
Technical Field
One or more embodiments of the specification relate to the field of tank truck equipment, in particular to a tank truck tail anti-collision device.
Background
The tank truck is a vehicle for transporting and transporting oil materials, and the tank body is generally made of carbon steel plates and can also be made of glass fiber reinforced plastics, stainless steel, plastics and other materials. The tank body of the vehicle for loading and transporting oil materials is generally made of carbon steel plates, and can also be made of glass fiber reinforced plastics, stainless steel, plastics and other materials.
Tank truck among the prior art is because of the longer relation of automobile body, and the afterbody is hit the tail easily, and the tank truck receives the striking back, can make the tank truck afterbody produce the deformation, and too big or even produce the danger of explosion easily of pressure to sum up, this application now provides a tank truck rear of a vehicle buffer stop and solves the problem that above-mentioned appears.
Disclosure of Invention
In view of the above, it is an object of one or more embodiments of the present disclosure to provide a tank truck rear collision avoidance apparatus that solves the problems set forth in the background art.
In view of the above, one or more embodiments of the present disclosure provide an anti-collision device for a tank truck tail, including a mounting seat, an anti-collision plate and a first anti-collision mechanism, where the mounting seat is fixedly mounted on the tank truck tail, the anti-collision plate is located on a side of the mounting seat away from the tank truck tail, the first anti-collision mechanism is located inside the mounting seat, the first anti-collision mechanism includes a rotating shaft, a torsion spring, a rotating disc, a sliding strip, a sliding block and a connecting rod, the rotating shaft is rotatably connected inside the mounting seat, the torsion spring is fixedly disposed inside the mounting seat, the torsion spring is sleeved on an annular side surface of the rotating shaft, an inner wall of the torsion spring is tightly connected with the annular side surface of the rotating shaft, the rotating disc is fixedly connected with the rotating shaft, that is, the rotating disc is rotatably connected inside the mounting seat through the rotating shaft, the sliding strip is slidably connected inside the mounting seat, and the sliding block is rotatably connected on a surface of the rotating disc through a pin shaft, and the slider sliding connection is inside the draw runner, the one end and the crashproof board fixed connection of connecting rod, the other end runs through the mount pad to with draw runner fixed connection.
Preferably, still include support plate and second anticollision institution, the fixed side that sets up at the mount pad near the anticollision board of support plate, second anticollision institution is located between support plate and the anticollision board, second anticollision institution includes cavity cover, telescopic link and damping spring, the cavity cover sets up a side that is close to the anticollision board at the support plate, the one end and the anticollision board fixed connection of telescopic link, and the other end of telescopic link extend to the cavity cover inside, damping spring connects inside the cavity cover, and damping spring and telescopic link extend to the inside one end zonulae occludens of cavity cover.
Preferably, the anti-collision device further comprises a power cylinder and a generator, wherein the base of the power cylinder is arranged on one side surface, close to the anti-collision plate, of the support plate, the telescopic portion of the power cylinder is fixedly connected with one side surface, close to the support plate, of the anti-collision plate, the generator is arranged on the inner wall, close to the support plate, of the mounting seat, the oil inlet of the generator is connected with the oil outlet of the power cylinder, and the oil outlet of the generator is connected with the oil inlet of the power cylinder.
More preferably, still include pressure stabilizing mechanism, pressure stabilizing mechanism includes surge chamber, piston board and lifting spring, the surge chamber sets up the inside one side inner wall that is close to the support plate in the mount pad, the inner wall of piston board sliding connection surge chamber, and the piston board divide into two mutual inclosed spaces with the surge chamber, the surge chamber leans on the upper portion space to be provided with the oil-out of surge chamber, and is connected with the oil inlet of generator, the surge chamber leans on the lower part space to be provided with the oil inlet of surge chamber, and is connected with the oil-out of power cylinder, the piston board is connected at the interior roof of surge chamber through lifting spring.
More preferably, the oil inlet of the pressure stabilizing chamber and the oil outlet of the pressure stabilizing chamber are both provided with one-way valves.
More preferably, the lifting springs are arranged in a plurality of equal intervals between the carrier plate and the inner top wall of the mounting seat.
Preferably, one side surface of the anti-collision plate, which is far away from the mounting seat, is of an arc-shaped structure.
From the above, it can be seen that the beneficial effects of the present invention are: according to the invention, through the rotating shaft, the torsion spring, the rotary disc, the slide bar, the slide block and the connecting rod, the deformation degree of the tail part of the tank truck after being impacted is preliminarily reduced, and the influence caused by vibration is preliminarily reduced; according to the invention, through the hollow sleeve, the telescopic rod and the damping spring, the deformation degree of the tail part of the tank truck after being impacted is further reduced, and the influence caused by vibration is further reduced; the invention can utilize the impact force to generate electricity through the power cylinder and the generator.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a first anti-collision mechanism according to the present invention;
FIG. 3 is a schematic structural view of a second anti-collision mechanism according to the present invention;
FIG. 4 is a schematic structural view of a power generation structure according to the present invention;
fig. 5 is a schematic structural diagram of the voltage stabilization mechanism of the present invention.
In the reference symbols: 1. a mounting seat; 2. a carrier plate; 3. an anti-collision plate; 4. a first anti-collision mechanism; 5. a second collision avoidance mechanism; 6. a power cylinder; 7. a pressure stabilizing mechanism; 8. a generator; 41. a torsion spring; 42. a rotating shaft; 43. a turntable; 44. a slider; 45. a pin shaft; 46. a connecting rod; 51. a telescopic rod; 52. a damping spring; 53. hollow sleeve; 71. lifting a spring; 72. a plenum; 73. a piston plate.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.
It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Example one
Referring to fig. 1-2, a tank truck tail anti-collision device includes a mounting base 1, an anti-collision plate 3 and a first anti-collision mechanism 4, the mounting base 1 is fixedly mounted on the tank truck tail, the anti-collision plate 3 is located on a side of the mounting base 1 away from the tank truck tail, the first anti-collision mechanism 4 is located inside the mounting base 1, the first anti-collision mechanism 4 includes a rotating shaft 42, a torsion spring 41, a rotating disc 43, a sliding strip, a sliding block 44 and a connecting rod 46, the rotating shaft 42 is rotatably connected inside the mounting base 1, the torsion spring 41 is fixedly disposed inside the mounting base 1, the torsion spring 41 is sleeved on an annular side surface of the rotating shaft 42, an inner wall of the torsion spring 41 is tightly connected with the annular side surface of the rotating shaft 42, the rotating disc 43 is fixedly connected with the rotating shaft 42, that is, the rotating disc 43 is rotatably connected inside the mounting base 1 through the rotating shaft 42, the sliding strip is slidably connected inside the mounting base 1, slider 44 rotates through round pin axle 45 and connects on the surface of carousel 43, and slider 44 sliding connection is inside the draw runner, the one end and the crashproof board 3 fixed connection of connecting rod 46, the other end runs through mount pad 1 to with draw runner fixed connection.
As a modified scheme of the scheme, one side surface of the anti-collision plate 3, which is far away from the mounting seat 1, is of an arc-shaped structure.
The working process is as follows: after the anti-collision plate 3 is impacted, the anti-collision plate 3 transmits the force to the sliding strip, the sliding strip slides to drive the sliding block 44 to slide in the sliding strip, the sliding block 44 drives the rotating disc 43 to rotate through the pin shaft 45 while sliding, the rotating disc 43 drives the rotating shaft 42 to rotate, the rotating shaft 42 rotates to drive the torsion spring 41 to deform, and the torsion spring 41 absorbs and filters the force.
Example two
As an improvement of the above scheme, the vehicle bumper further comprises a support plate 2 and a second anti-collision mechanism 5, the support plate 2 is fixedly arranged on one side surface of the mounting seat 1 close to the anti-collision plate 3, the second anti-collision mechanism 5 is located between the support plate 2 and the anti-collision plate 3, the second anti-collision mechanism 5 comprises a hollow sleeve 53, an expansion rod 51 and a damping spring 52, the hollow sleeve 53 is arranged on one side surface of the support plate 2 close to the anti-collision plate 3, one end of the expansion rod 51 is fixedly connected with the anti-collision plate 3, the other end of the expansion rod 51 extends into the hollow sleeve 53, the damping spring 52 is connected into the hollow sleeve 53, and the damping spring 52 and one end of the expansion rod 51 extending into the hollow sleeve 53 are tightly connected.
The working process is as follows: the impact prevention plate 3 transmits the force to the expansion link 51, the expansion link 51 moves in a direction of compressing the damper spring 52, and the damper spring 52 contracts to further absorb and filter the force.
EXAMPLE III
As an improvement of the above scheme, the anti-collision device further comprises a power cylinder 6 and a generator 8, wherein a base of the power cylinder 6 is arranged on one side surface of the support plate 2 close to the anti-collision plate 3, a telescopic portion of the power cylinder 6 is fixedly connected with one side surface of the anti-collision plate 3 close to the support plate 2, the generator 8 is arranged on the inner wall of the mounting seat 1 close to the support plate 2, an oil inlet of the generator 8 is connected with an oil outlet of the power cylinder 6, and an oil outlet of the generator 8 is connected with an oil inlet of the power cylinder 6.
As an improvement of the above scheme, the pressure stabilizing mechanism 7 further comprises a pressure stabilizing mechanism 7, the pressure stabilizing mechanism 7 comprises a pressure stabilizing chamber 72, a piston plate 73 and a lifting spring 71, the pressure stabilizing chamber 72 is arranged on the inner wall of one side of the mounting seat 1 close to the carrier plate 2, the piston plate 73 is connected with the inner wall of the pressure stabilizing chamber 72 in a sliding mode, the pressure stabilizing chamber 72 is divided into two mutually closed spaces by the piston plate 73, an oil outlet of the pressure stabilizing chamber 72 is formed in the upper space of the pressure stabilizing chamber 72 and connected with an oil inlet of the generator 8, an oil inlet of the pressure stabilizing chamber 72 is formed in the lower space of the pressure stabilizing chamber 72 and connected with an oil outlet of the power cylinder 6, and the piston plate 73 is connected to the inner top wall of the pressure stabilizing chamber 72 through the lifting spring 71.
As an improvement of the scheme, the oil inlet of the pressure stabilizing chamber 72 and the oil outlet of the pressure stabilizing chamber 72 are both provided with one-way valves.
As a modified solution of the above solution, the lifting springs 71 are provided with a plurality of lifting springs 71, and the plurality of lifting springs 71 are arranged between the carrier plate 2 and the inner top wall of the mounting base 1 at equal intervals.
The working process is as follows: after the anti-collision plate 3 is acted by force, the telescopic part of the power oil cylinder 6 is compressed, the telescopic part moves, oil in the power oil cylinder 6 is compressed, the oil is pressurized and injected into the pressure stabilizing chamber 72, the piston plate 73 is driven to slide on the inner wall of the pressure stabilizing chamber 72 along with increasing oil in the pressure stabilizing chamber 72, the lifting spring 71 is compressed, the lifting spring 71 applies reaction force to the piston plate 73 until the piston plate 73 opens an oil outlet of the pressure stabilizing chamber 72, the oil enters the generator 8, the generator 8 generates electricity, the oil pressure of the oil is reduced, and the oil flows back to the power oil cylinder 6 for recycling.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (7)
1. The utility model provides a tank wagon rear of a vehicle buffer stop which characterized in that includes:
the mounting seat (1), the mounting seat (1) is fixedly mounted at the tail of the tank truck;
the anti-collision plate (3) is positioned on one side, away from the tail of the tank truck, of the mounting seat (1); and
first anticollision institution (4), first anticollision institution (4) are located inside mount pad (1), first anticollision institution (4) includes:
the rotating shaft (42), the rotating shaft (42) is rotatably connected inside the mounting seat (1);
the torsion spring (41) is fixedly arranged in the mounting seat (1), the torsion spring (41) is sleeved on the annular side surface of the rotating shaft (42), and the inner wall of the torsion spring (41) is tightly connected with the annular side surface of the rotating shaft (42);
the rotary table (43), the rotary table (43) is fixedly connected with the rotating shaft (42), namely the rotary table (43) is rotatably connected inside the mounting seat (1) through the rotating shaft (42);
the sliding strip is connected inside the mounting seat (1) in a sliding manner;
the sliding block (44) is rotatably connected to the surface of the rotating disc (43) through a pin shaft (45), and the sliding block (44) is connected to the inside of the sliding strip in a sliding mode; and
and one end of the connecting rod (46) is fixedly connected with the anti-collision plate (3), and the other end of the connecting rod (46) penetrates through the mounting seat (1) and is fixedly connected with the sliding strip.
2. The tank truck tailback bump protection device according to claim 1, further comprising:
the anti-collision device comprises a support plate (2), wherein the support plate (2) is fixedly arranged on one side surface, close to an anti-collision plate (3), of a mounting seat (1);
second anticollision institution (5), second anticollision institution (5) are located between support plate (2) and crashproof board (3), second anticollision institution (5) include:
the hollow sleeve (53), the hollow sleeve (53) is arranged on one side surface of the carrier plate (2) close to the anti-collision plate (3);
one end of the telescopic rod (51) is fixedly connected with the anti-collision plate (3), and the other end of the telescopic rod (51) extends into the hollow sleeve (53); and
the damping spring (52) is connected to the inside of the hollow sleeve (53), and the damping spring (52) is tightly connected with one end, extending to the inside of the hollow sleeve (53), of the telescopic rod (51).
3. The tank truck tailback bump protection device according to claim 1, further comprising:
the base of the power oil cylinder (6) is arranged on one side surface, close to the anti-collision plate (3), of the carrier plate (2), and the telescopic part of the power oil cylinder (6) is fixedly connected with one side surface, close to the carrier plate (2), of the anti-collision plate (3); and
the power generator (8) is arranged on the inner wall, close to the carrier plate (2), of the mounting seat (1), an oil inlet of the power generator (8) is connected with an oil outlet of the power oil cylinder (6), and an oil outlet of the power generator (8) is connected with an oil inlet of the power oil cylinder (6).
4. The tank truck tailback bump protection device according to claim 3, further comprising:
a pressure stabilizing mechanism (7), the pressure stabilizing mechanism (7) comprising:
the pressure stabilizing chamber (72) is arranged on the inner wall of one side, close to the carrier plate (2), in the mounting seat (1);
the oil inlet of the pressure stabilizing chamber (72) is arranged in the space close to the lower part of the pressure stabilizing chamber (72) and is connected with the oil outlet of the power oil cylinder (6); and
and the piston plate (73) is connected to the inner top wall of the pressure stabilizing chamber (72) through the lifting spring (71).
5. The tank truck tailstock anti-collision device according to claim 4, characterized in that a one-way valve is arranged on both the oil inlet of the pressure stabilizing chamber (72) and the oil outlet of the pressure stabilizing chamber (72).
6. The tank truck tail collision avoidance device according to claim 4, wherein the lifting springs (71) are provided in plurality, and the lifting springs (71) are arranged between the carrier plate (2) and the inner top wall of the mounting seat (1) at equal intervals.
7. The tank truck tail anti-collision device according to claim 1, characterized in that one side surface of the anti-collision plate (3) far away from the mounting seat (1) is of an arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110981333.7A CN113799720A (en) | 2021-08-25 | 2021-08-25 | Tank truck rear anti-collision device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110981333.7A CN113799720A (en) | 2021-08-25 | 2021-08-25 | Tank truck rear anti-collision device |
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| Publication Number | Publication Date |
|---|---|
| CN113799720A true CN113799720A (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110981333.7A Pending CN113799720A (en) | 2021-08-25 | 2021-08-25 | Tank truck rear anti-collision device |
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| Country | Link |
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| CN (1) | CN113799720A (en) |
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| CN106627131A (en) * | 2017-02-22 | 2017-05-10 | 张仙驰 | Jolting energy absorbing charging device for electric vehicle |
| KR101883970B1 (en) * | 2017-08-04 | 2018-08-29 | 전남대학교산학협력단 | A Door Protection Device for Vehicle |
| CN210391026U (en) * | 2019-04-04 | 2020-04-24 | 江苏淮海新能源车辆有限公司 | Collision device for electric vehicle for urban logistics |
| CN211107810U (en) * | 2019-09-30 | 2020-07-28 | 徐州智博机车有限公司 | Anti-collision device of electric tricycle |
| CN211683318U (en) * | 2019-12-24 | 2020-10-16 | 长春市乾嘉万立模具有限公司 | Forced return device of injection mold |
| CN211763122U (en) * | 2019-12-26 | 2020-10-27 | 天津市华辰嘉业汽车零部件有限公司 | Quick refrigerated injection moulding mould |
| CN112498142A (en) * | 2020-11-16 | 2021-03-16 | 安徽佑赛科技股份有限公司 | Energy-conserving portable charging station |
| WO2021119976A1 (en) * | 2019-12-16 | 2021-06-24 | 江苏罗思韦尔电气有限公司 | Anti-collision protection structure for automobile engine |
| CN213734890U (en) * | 2020-11-24 | 2021-07-20 | 江西越泰实业有限公司 | Automobile door anti-collision beam |
-
2021
- 2021-08-25 CN CN202110981333.7A patent/CN113799720A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627131A (en) * | 2017-02-22 | 2017-05-10 | 张仙驰 | Jolting energy absorbing charging device for electric vehicle |
| KR101883970B1 (en) * | 2017-08-04 | 2018-08-29 | 전남대학교산학협력단 | A Door Protection Device for Vehicle |
| CN210391026U (en) * | 2019-04-04 | 2020-04-24 | 江苏淮海新能源车辆有限公司 | Collision device for electric vehicle for urban logistics |
| CN211107810U (en) * | 2019-09-30 | 2020-07-28 | 徐州智博机车有限公司 | Anti-collision device of electric tricycle |
| WO2021119976A1 (en) * | 2019-12-16 | 2021-06-24 | 江苏罗思韦尔电气有限公司 | Anti-collision protection structure for automobile engine |
| CN211683318U (en) * | 2019-12-24 | 2020-10-16 | 长春市乾嘉万立模具有限公司 | Forced return device of injection mold |
| CN211763122U (en) * | 2019-12-26 | 2020-10-27 | 天津市华辰嘉业汽车零部件有限公司 | Quick refrigerated injection moulding mould |
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Application publication date: 20211217 |