CN215715685U - Trailer warning device - Google Patents
Trailer warning device Download PDFInfo
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- CN215715685U CN215715685U CN202121330357.8U CN202121330357U CN215715685U CN 215715685 U CN215715685 U CN 215715685U CN 202121330357 U CN202121330357 U CN 202121330357U CN 215715685 U CN215715685 U CN 215715685U
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The application provides a trailer warning device which comprises a support, wherein an axial through hole is formed in the support; a shaft slidably passing through the through-hole; a tow hook disposed at a first end of the shaft, the tow hook being located outside the first end of the through hole; the retainer ring is sleeved at the second end of the shaft and is positioned outside the second end of the through hole; the proximity switch is used for sending a warning signal after the distance between the check ring and the support reaches a set value, the trailer warning device is arranged between the electric shovel and the tail line vehicle and arranged in parallel with the cables, and an alarm is sent out when the cables are stretched due to excessive force so as to ensure the safety of the cables and further ensure the safety of production and operating personnel.
Description
Technical Field
The utility model belongs to the technical field of engineering machinery, and particularly relates to a trailer warning device.
Background
In surface mines and large civil engineering construction, electric forklifts are generally used for stripping and loading earthwork, and the electric forklifts rely on high-voltage electricity transmitted by cables as a power source. During field operation, the electric shovel car continuously moves forward and backward and moves left and right, and the power supply cable continuously swings on the ground along with the movement and is in an unsafe state.
At present, in surface mines and civil engineering construction engineering, the electric shovel adopts a ground dragging cable mode in the operation process, and unsafe factors exist in the process that a high-voltage power supply cable moves along with the electric shovel. For example, it often happens that the cable is stretched too much to cause the cable to break, thereby affecting the safety of production and operating personnel.
SUMMERY OF THE UTILITY MODEL
The utility model provides a trailer warning device, which aims at solving part or all of the technical problems in the prior art. This trailer warning device is used for setting up between electric shovel and tail-wire car and set up with cable parallel, sends out the police dispatch newspaper when the cable excess force is tensile to guarantee the safety of cable, and then guarantee production and operation personnel's safety.
According to the present invention, there is provided a trailer warning device comprising:
a support, wherein the support is provided with an axial through hole,
a shaft slidably passing through the through-hole,
a tow hook disposed at a first end of the shaft, the tow hook being located outside the first end of the through hole,
a retainer ring sleeved at the second end of the shaft, the retainer ring is positioned at the outer side of the second end of the through hole,
and the proximity switch is used for sending out a warning signal after the distance between the check ring and the support reaches a set value.
In one embodiment, a nut sleeved on the outer wall of the shaft is arranged outside the second end of the retainer ring.
In one embodiment, a reset member is disposed between the retainer ring and the seat.
In one embodiment, a first step surface facing the second end is arranged in the inner cavity of the support, an extension ring is arranged at the first end of the retainer ring in a protruding manner, the extension ring is used for being inserted into the through hole and distributed opposite to the first step surface, and two ends of the resetting piece are respectively abutted against the first step surface and the first end surface of the extension ring.
In one embodiment, the return element is configured as a spring and is fitted over the outer wall of the shaft.
In one embodiment, the proximity switch is arranged on the outer wall of the support, and a sensing part matched with the proximity switch is arranged on the first end face of the retainer in a protruding mode.
In one embodiment, a mounting plate is provided on an outer wall of the holder, an axially through mounting hole is provided on the mounting plate, and the proximity switch is inserted into the mounting hole.
In one embodiment, the tow hook is configured as a split ring, and both ends of the split ring are lapped on the outer wall of the shaft and fixedly connected.
In one embodiment, the split ring is welded to the shaft.
In one embodiment, a fixing plate is protrusively provided on an outer wall of the holder, and a bolt hole for mounting is provided on the fixing plate.
Compared with the prior art, the utility model has the advantages that: this trailer warning device is used for setting up between electric shovel and tail-wire car and set up with cable parallel, sends out the police dispatch newspaper when the cable excess force is tensile to guarantee the safety of cable, and then guarantee production and operation personnel's safety.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 shows an exploded view of a trailer warning device according to one embodiment of the present invention;
FIG. 2 shows a front view of a trailer warning device according to one embodiment of the present invention;
FIG. 3 shows a top view of a trailer warning device according to one embodiment of the present invention;
figure 4 shows an isometric view of a trailer warning device according to one embodiment of the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, exemplary embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is clear that the described embodiments are only a part of the embodiments of the utility model, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict.
The embodiment of the utility model provides a trailer warning device. As shown in fig. 1, the trailer warning device includes a support 1, a shaft 2, a towing hook 3, a retainer ring 4, and a proximity switch 5. Wherein the support 1 is used for being fixedly connected to a tail line vehicle. Structurally, the support 1 is provided with an axial through hole 11. As further shown in fig. 2-4, the shaft 2 passes through the through hole 11 and is slidably coupled to the through hole 11. The tow hook 3 is provided at a first end (left end shown in fig. 1) of the shaft 2, and the tow hook 3 is located outside the first end of the through hole 11. In use, the tow hook is connected to the electric shovel. The retainer ring 4 is fitted over the second end of the shaft 2 and is located outside the second end (right end shown in fig. 1) of the through hole 11. The proximity switch 5 is used for sending out a warning signal after the distance between the retainer ring 4 and the support 1 reaches a set value.
In the use, support 1 sets up on the tail-line car, and towing pintle 3 sets up on the electric shovel for this trailer warning device sets up between tail-line car and electric shovel with the cable parallel. When the distance of electric shovel and tail line car increases, towing pintle 3 drives axle 2 and retaining ring 4 and moves for support 1 to make retaining ring 4 be close to support 1 gradually, when reacing predetermined distance, proximity switch 5 sends out warning signal, and the biggest safe distance of tensile of cable is reachd to the distance between sign tail line car and the electric shovel, if the distance between tail line car and the electric shovel continues to increase, then probably causes the tensile cable of excessive force. From this, can guarantee the safety of cable through this trailer warning device, and then guarantee the smooth going on of operation personnel's safety and production.
A nut 6 is arranged outside the second end of the collar 4. The nut 6 is sleeved on the outer wall of the shaft 2 and is in threaded connection with the shaft 2. The safety is further ensured by the provision of the nut 6, preventing the shaft 2 from coming out of the through hole 11 of the support 1. In addition, the distance position of the retainer ring 4 in the axial direction of the shaft 2 can be adjusted by arranging the nut 6, so that the distance between the retainer ring 4 and the support 1 in the initial state can be adaptively adjusted, and the safety of the cable is completely ensured.
A restoring element 7 is arranged between the securing ring 4 and the carrier 1. Preferably, the return element 7 is a spring. Specifically, a first step surface 12 is provided in the inner cavity of the holder 1 toward the second end, as shown in fig. 2. Meanwhile, an extension ring 41 is protrudingly provided at the first end of the retainer ring 4. The extension ring 41 is adapted to be inserted into the through hole 11 of the holder 1 such that a first end surface of the extension ring 41 is disposed opposite to the first step surface 12. The reset piece 7 is sleeved on the outer wall of the shaft 2, and two ends of the reset piece are respectively abutted against the first step surface 12 and the first end surface of the extension ring 41. In the initial state, the resetting member 7 is in the natural state. When the distance between the electric shovel and the tail line vehicle is increased, the retainer ring 4 is gradually close to the support 1, the extension ring 41 moves along with the retainer ring 4 and gradually approaches the first step surface 12, and the resetting piece 7 is compressed and accumulates energy. When the distance between the electric shovel and the tail line vehicle is relatively reduced, the retainer ring 4 is gradually far away from the support 1 under the action of the resetting piece 7 for resetting operation. The structure is simple and easy to realize. The spring is arranged in the through hole 11 of the support 1, so that the spring can be prevented from being interfered by impurities and the like to influence the elastic performance, and the use safety of the spring is ensured. The spring is not only limited between the first step surface 12 and the first end surface of the extension ring 41, but also sleeved on the outer wall of the shaft 2, so that the stability of the spring in the motion process of compression or extension is ensured, the spring is prevented from being inclined, and the safe operation is further ensured.
The proximity switch 5 is provided on the outer wall of the cradle 1. Meanwhile, a sensing portion 42 is provided on the first end surface of the retainer ring 4 in a protruding manner. The sensing portion 42 is distributed opposite to the proximity switch 5, and performs matching type sensing. More specifically, a projecting ring 13 is provided at the second end of the holder 1 to increase the second end radial dimension for better abutting engagement with the retainer ring 4. A notch 14 is provided in the protruding ring 13 for positional matching with the sensing portion 42. When the retainer ring 4 is close to the support 1, the sensing part 42 is inserted into the gap 14. The gap 14 provides a limiting function for the sensing part 42, and is used for ensuring the position accuracy of the sensing part 42 and the proximity switch 5.
A mounting plate 8 is arranged on the outer wall of the support 1. The mounting plate 8 is provided with a mounting hole 81 penetrating in the axial direction. The proximity switch 5 is inserted into the mounting hole 81 to fixedly mount the proximity switch 5 through the mounting hole 81. The structure is simple and easy to realize.
The tow hook 3 is configured in the form of an open ring. After assembly, the ends of the split ring are lapped over the outer wall of the shaft 2 and fixedly attached, such as welded, to form a closed loop for traction at the first end of the shaft 2. The structure facilitates the connection of the trailer warning device and the electric shovel. For another example, the second step surface 21 is provided on the shaft 2 such that the outer diameter of the shaft 2 at the first end of the second step surface 21 is larger in size than the outer diameter of the shaft 2 at the second end of the second step surface 21. On one hand, the arrangement of the shaft 2 can improve the strength of the first end of the shaft 2 and ensure the tensile effect; on the other hand, the second step surface 21 serves as a stopper to ensure that the first end of the shaft 2 cannot be inserted into the through hole 11.
A fixing plate 9 is protrusively provided on the outer wall of the support 1. The fixing plate 9 is provided with a bolt hole 91 for mounting. During installation, the fixing plate 9 may be seated on the installation surface of the tail-line vehicle, and the mount 1 is then mounted to the tail-line vehicle by bolts.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the appended claims are intended to be construed to include preferred embodiments and all such changes and/or modifications as fall within the scope of the utility model, and all such changes and/or modifications as are made to the embodiments of the present invention are intended to be covered by the scope of the utility model.
Claims (10)
1. A trailer warning device, comprising:
a support, wherein the support is provided with an axial through hole,
a shaft slidably passing through the through-hole,
a tow hook disposed at a first end of the shaft, the tow hook being located outside the first end of the through hole,
a retainer ring sleeved at the second end of the shaft, the retainer ring is positioned at the outer side of the second end of the through hole,
and the proximity switch is used for sending out a warning signal after the distance between the check ring and the support reaches a set value.
2. The trailer warning device of claim 1, wherein a nut is disposed on an outer wall of the axle and sleeved outside the second end of the retainer ring.
3. A trailer warning device as claimed in claim 1 wherein a reset member is provided between the collar and the support.
4. The trailer warning device of claim 3, wherein a first step surface facing the second end is disposed in the inner cavity of the support, an extension ring is protrusively disposed at the first end of the retainer ring, the extension ring is configured to be inserted into the through hole and distributed opposite to the first step surface, and two ends of the reset member are respectively abutted against the first step surface and the first end surface of the extension ring.
5. The trailer warning device of claim 4, wherein the return member is configured as a spring and is sleeved on an outer wall of the axle.
6. The trailer warning device of claim 1, wherein the proximity switch is disposed on an outer wall of the support, and a sensing portion matched with the proximity switch is protrudingly disposed on the first end surface of the retainer ring.
7. The trailer warning device of claim 5, wherein a mounting plate is provided on an outer wall of the support, wherein an axially extending mounting hole is provided in the mounting plate, and wherein the proximity switch is inserted into the mounting hole.
8. The trailer warning device of any one of claims 1 to 7, wherein the towing hook is configured as a split ring, both ends of the split ring being lapped on the outer wall of the shaft and fixedly connected.
9. The trailer warning device of claim 8 wherein the split ring is welded to the shaft.
10. The trailer warning device as claimed in any one of claims 1 to 7, wherein a fixing plate is protrudingly provided on an outer wall of the pedestal, the fixing plate being provided with a bolt hole for mounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121330357.8U CN215715685U (en) | 2021-06-15 | 2021-06-15 | Trailer warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121330357.8U CN215715685U (en) | 2021-06-15 | 2021-06-15 | Trailer warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215715685U true CN215715685U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121330357.8U Active CN215715685U (en) | 2021-06-15 | 2021-06-15 | Trailer warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215715685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908822A (en) * | 2022-06-30 | 2022-08-16 | 常州市力烨重型设备科技有限公司 | Slide-wire type electric loader |
-
2021
- 2021-06-15 CN CN202121330357.8U patent/CN215715685U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908822A (en) * | 2022-06-30 | 2022-08-16 | 常州市力烨重型设备科技有限公司 | Slide-wire type electric loader |
| CN114908822B (en) * | 2022-06-30 | 2023-09-12 | 常州市力烨重型设备科技有限公司 | Slide wire type electric loader |
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