CN220791229U - Excavation trolley safety device - Google Patents
Excavation trolley safety device Download PDFInfo
- Publication number
- CN220791229U CN220791229U CN202321817373.9U CN202321817373U CN220791229U CN 220791229 U CN220791229 U CN 220791229U CN 202321817373 U CN202321817373 U CN 202321817373U CN 220791229 U CN220791229 U CN 220791229U
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- section steel
- excavation trolley
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- supporting
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 106
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 176
- 239000010959 steel Substances 0.000 claims abstract description 176
- 230000001012 protector Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- 239000011435 rock Substances 0.000 abstract description 15
- 238000010276 construction Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to an excavation trolley safety protection device which comprises stages, wherein the excavation trolley safety protection device is arranged on one side, close to a face, of an excavation trolley, the excavation trolley safety protection device comprises a protection device and a supporting device, the protection device is connected with adjacent stages, the stages closest to the ground and the bottom of the excavation trolley, the protection device is composed of steel plates, the supporting device is arranged between the adjacent stages, the stages closest to the ground and the ground, and the supporting device is composed of profile steel. The excavation trolley safety protection device can prevent the surrounding rock collapse of the face from causing danger to site constructors, has certain safety, and can greatly ensure the safety of the site constructors.
Description
Technical Field
The utility model relates to the field of tunnel construction, in particular to a safety protection device for an excavation trolley.
Background
After the tunnel face is excavated, in order to control the proper release and deformation of surrounding rock stress, increase the structural safety and facilitate construction, a structural layer with smaller rigidity and serving as a part of a permanent bearing structure can be immediately applied to serve as an initial support. The primary support generally adopts a steel arch to form a closed loop structure, when the tunnel face primary support steel arch is constructed, an excavation trolley is required to be adopted for vertical construction, and different excavation trolleys are required to be adopted according to different tunnel sections.
In the field construction production process, the conventional excavation trolley is not provided with a safety protection device at one side close to the face, and when a field worker carries out primary support steel arch frame vertical frame construction on the excavation trolley, the surrounding rock collapse of the face is once encountered, so that casualties are caused, and the field construction is greatly influenced.
Disclosure of Invention
Accordingly, the utility model aims to provide a safety protection device for an excavation trolley, which can prevent surrounding rock collapse of a face from causing danger to site constructors during construction by installing the safety protection device on one side of the excavation trolley close to the face, has certain safety, and can greatly ensure the safety of the site constructors.
An excavation trolley safety protection device. The excavation trolley comprises stages, the excavation trolley safety protection device is arranged on one side, close to a face, of the excavation trolley, the excavation trolley safety protection device comprises a protection device and a supporting device, the protection device is connected with each stage of adjacent stages and is connected with each stage of closest to the ground and the bottom of the excavation trolley, the protection device is composed of steel plates, and the supporting device is arranged between each stage of adjacent stages and between each stage of closest to the ground and is composed of profile steel.
The excavation trolley safety protection device can prevent the surrounding rock collapse of the face from causing danger to site constructors, has certain safety, and can greatly ensure the safety of the site constructors.
Further, the protector includes first protection steel sheet and second protection steel sheet, the both ends of first protection steel sheet respectively with adjacent two-stage the rack is connected, the one end of second protection steel sheet with closest ground the rack at each level is connected, the other end of second protection steel sheet with the bottom of excavation platform truck is connected.
Further, the support device includes a first support portion provided between adjacent stages of stages, and a second support portion provided between the stages closest to the ground and the ground.
Further, the second protection steel plate is connected with the first protection steel plate.
Further, the first supporting portion includes first upper supporting section steel, first well supporting section steel and first lower supporting section steel, the one end of first upper supporting section steel with the adjacent two-stage be in the one-level of upper end in the rack is connected, the other end of first upper supporting section steel with be in the adjacent two-stage be in between the rack excavation trolley's a part is connected, the one end of first lower supporting section steel with the adjacent two-stage be in the one-level of lower extreme in the rack is connected, the other end of first lower supporting section steel with be in the adjacent two-stage be in between the rack excavation trolley's a part is connected, the one end of first well supporting section steel with first upper supporting section steel is connected, the other end of first well supporting section steel with first lower supporting section steel is connected.
Further, the second supporting part comprises a second upper supporting section steel, a second middle supporting section steel and a second lower supporting section steel, one end of the second upper supporting section steel is connected with the rack, the other end of the second upper supporting section steel is connected with a part of the excavation trolley between the rack and the ground, one end of the second lower supporting section steel is connected with a second protection steel plate, the other end of the second lower supporting section steel is connected with a part of the excavation trolley between the rack and the ground, one end of the second middle supporting section steel is connected with the second upper supporting section steel, and the other end of the second middle supporting section steel is connected with the second lower supporting section steel.
Further, the distance between one end of the first middle support section steel and the bisector of the tunnel face is greater than the distance between the other end of the first middle support section steel and the bisector of the tunnel face.
Further, the distance between one end of the second middle support section steel and the bisector of the tunnel face is greater than the distance between the other end of the second middle support section steel and the bisector of the tunnel face.
Further, the connection is a connection adopting a welding process.
Further, the excavation trolley further comprises a supporting frame, each stage of the trolley comprises a first rack and a second rack, the supporting frame is trapezoid without bottom, the first rack and the second rack are arranged on two sides of the supporting frame, the second rack is arranged between the first rack and the ground, the protecting device is connected with the first rack and the second rack and connected with the second rack and the bottom of the supporting frame, and the supporting device is arranged between the first rack and the second rack and between the second rack and the ground.
For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.
Drawings
Fig. 1 is a schematic structural diagram of an excavation trolley safety device according to embodiment 1;
fig. 2 is a schematic structural diagram of an excavation trolley safety apparatus according to embodiment 2;
the excavation trolley 1, the trolley 11, the first trolley 111, the second trolley 112, the supporting frame 12, the excavation trolley safety protection device 2, the protection device 21, the first protection steel plate 211, the second protection steel plate 212, the supporting device 22, the first supporting portion 221, the first upper supporting section steel 2211, the first middle supporting section steel 2212, the first lower supporting section steel 2213, the second supporting portion 222, the second upper supporting section steel 2221, the second middle supporting section steel 2222 and the second lower supporting section steel 2223.
Detailed Description
Example 1
This embodiment provides an excavation trolley safety device 2, as shown in fig. 1, excavation trolley 1 is used for carrying out face preliminary bracing steel arch construction, excavation trolley 1 includes stage rack 11, excavation trolley safety device 2 sets up in excavation trolley 1 is close to the one side of face, excavation trolley safety device 2 includes protector 21 and strutting arrangement 22, protector 21 is connected with adjacent each stage rack 11 and is connected with the bottom of stage rack 11 and excavation trolley 1 that is closest to ground, strutting arrangement 22 sets up between adjacent stage rack 11 and between stage rack 11 and the ground that is closest to ground. The protector 21 comprises the steel sheet for carry out safety protection to excavation trolley 1, strutting arrangement 22 comprises shaped steel for support protector 21, ensure protector 21's stability.
The protection device 21 comprises a first protection steel plate 211 and a second protection steel plate 212, wherein two ends of the first protection steel plate 211 are respectively connected with two adjacent stages of racks 11, one end of the second protection steel plate 212 is connected with each stage of rack 11 closest to the ground, the second protection steel plate 212 is connected with the first protection steel plate 211, and the other end of the second protection steel plate 212 is connected with the bottom of the excavation trolley 1.
The supporting device 22 includes a first supporting portion 221 and a second supporting portion 222, the first supporting portion 221 is disposed between adjacent stages of the racks 11, the first supporting portion 221 includes a first upper supporting section steel 2211, a first middle supporting section steel 2212 and a first lower supporting section steel 2213, one end of the first upper supporting section steel 2211 is connected with a first stage of the racks 11 located at the upper end of the adjacent stages, the other end of the first upper supporting section steel 2211 is connected with a part of the excavation rack 1 located between the adjacent stages of the racks 11, one end of the first lower supporting section steel 2213 is connected with a first stage of the racks 11 located at the lower end of the adjacent stages, the other end of the first lower supporting section steel 2213 is connected with a part of the excavation rack 1 located between the adjacent stages of the racks 11, one end of the first middle supporting section steel 2212 is connected with the first upper supporting section steel 2211, the other end of the first middle supporting section steel 2212 is connected with the first lower supporting section steel 2213, and the distance between one end of the first middle supporting section steel 2212 and the bisecting plane of the tunnel plane is greater than the distance between the other end of the first middle supporting section steel 2212 and the tunnel plane; the second support portion 222 is disposed between each stage of the gantry 11 closest to the ground and the ground, the second support portion 222 includes a second upper support section steel 2221, a second middle support section steel 2222, and a second lower support section steel 2223, one end of the second upper support section steel 2221 is connected to the gantry 11, the other end of the second upper support section steel 2221 is connected to a portion of the excavation trolley 1 located between the gantry 11 and the ground, one end of the second lower support section steel 2223 is connected to a portion of the excavation trolley 1 located between the gantry 11 and the ground, the other end of the second lower support section steel 2223 is connected to the second upper support section steel 2221, the other end of the second middle support section steel 2222 is connected to the second lower support section steel 2223, and a distance between one end of the second middle support section steel 2222 and a bisecting plane of the tunnel face is greater than a distance between the other end of the second middle support section steel 2222 and the bisecting plane of the tunnel face.
When the excavation trolley safety protection device 2 is installed, the first upper support section steel 2211, the first lower support section steel 2213, the second upper support section steel 2221 and the second lower support section steel 2223 are connected, then the first middle support section steel 2212 and the second middle support section steel 2222 are connected, the welding process is adopted for connection, firm welding is ensured, after the connection is qualified, the first protection steel plate 211 and the second protection steel plate 212 are connected again, and the welding process is adopted for connection, and firm welding is ensured.
When the excavation trolley 1 is not provided with the excavation trolley safety protection device 2 in the embodiment, and the surrounding rock is broken up to impact the excavation trolley 1 when the surrounding rock of the face is collapsed in the actual construction process, constructors on the trolley are in danger. When the excavation trolley 1 is provided with the excavation trolley safety protection device 2 according to the embodiment, when the surrounding rock of the face is collapsed in the actual construction process, the protection device 21 transmits the received impact force to the support device 22, the support device 22 continuously transmits the force to the excavation trolley 1, the excavation trolley 1 counteracts the received force within a certain range according to the self gravity, and the protection device 21 is a square steel plate and is provided with the function of protecting the constructors on the stages of the trolley 11 from being hit by the impacted crushed surrounding rock. After the excavation trolley safety protection device 2 is applied, the construction safety risk of site constructors constructing on the excavation trolley 1 is greatly reduced from extremely high safety risk to construction safety risk, the construction safety of the excavation trolley 1 is greatly improved, and the safety of the site constructors is greatly ensured.
According to the excavation trolley safety protection device 2, the safety protection device 21 is installed on one side, close to the face, of the excavation trolley 1, so that the excavation trolley 1 can prevent surrounding rock collapse of the face from dangerous to site constructors during construction, certain safety is achieved, and safety of the site constructors can be greatly guaranteed.
Example 2
This embodiment provides an excavation trolley safety device 2, as shown in fig. 2, excavation trolley 1 is used for carrying out face preliminary bracing steel arch construction, excavation trolley 1 includes support frame 12, first rack 111 and second rack 112, and support frame 12 is not trapezoidal of lower, and first rack 111 and second rack 112 all set up the both sides of support frame 12, and second rack 112 sets up between first rack 111 and ground, excavation trolley safety device 2 sets up in excavation trolley 1 one side that is close to the face, excavation trolley safety device 2 includes protector 21 and strutting arrangement 22, protector 21 is connected with first rack 111 and second rack 112 and is connected with the bottom of second rack 112 and support frame 12, strutting arrangement 22 sets up between first rack 111 and second rack 112 and between second rack 112 and ground. The protector 21 comprises the steel sheet for carry out safety protection to excavation trolley 1, strutting arrangement 22 comprises shaped steel for support protector 21, ensure protector 21's stability.
The protection device 21 comprises a first protection steel plate 211 and a second protection steel plate 212, wherein two ends of the first protection steel plate 211 are respectively connected with the first rack 111 and the second rack 112, one end of the second protection steel plate 212 is connected with the second rack 112, the second protection steel plate 212 is connected with the first protection steel plate 211 at the second rack 112, and the other end of the second protection steel plate 212 is connected with the bottom of the supporting frame 12.
The supporting device 22 includes a first supporting portion 221 and a second supporting portion 222, the first supporting portion 221 is disposed between the first rack 111 and the second rack 112, the first supporting portion 221 includes a first upper supporting section steel 2211, a first middle supporting section steel 2212 and a first lower supporting section steel 2213, one end of the first upper supporting section steel 2211 is connected with the first rack 111, the other end of the first upper supporting section steel 2211 is connected with the supporting frame 12 between the first rack 111 and the second rack 112, one end of the first lower supporting section steel 2213 is connected with the second rack 112, the other end of the first lower supporting section steel 2213 is connected with the supporting frame 12 between the other end of the first upper supporting section steel 2211 and the second rack 112, one end of the first middle supporting section steel 2212 is connected with the first upper supporting section steel 2211, the other end of the first middle supporting section steel 2212 is connected with the first lower supporting section steel 2213, and the distance between one end of the first middle supporting section steel 2212 and the bisector of the tunnel face is greater than the bisector of the other end of the first middle supporting section steel 2212 and the tunnel face; the second support portion 222 is disposed between the second stand 112 and the ground, the second support portion 222 includes a second upper support section steel 2221, a second middle support section steel 2222, and a second lower support section steel 2223, one end of the second upper support section steel 2221 is connected to the second stand 112, the other end of the second upper support section steel 2221 is connected to the support frame 12 between the second stand 112 and the ground, one end of the second lower support section steel 2223 is connected to the second protection steel 212, the other end of the second lower support section steel 2223 is connected to the support frame 12 between the second stand 112 and the ground, one end of the second middle support section steel 2222 is connected to the second upper support section steel 2221, the other end of the second middle support section steel 2222 is connected to the second lower support section steel 2223, and the distance between one end of the second middle support section steel 2222 and the bisecting plane of the palm face is greater than the distance between the other end of the second middle support section steel 2222 and the bisecting plane of the palm face.
When the excavation trolley safety protection device 2 is installed, the first upper support section steel 2211, the first lower support section steel 2213, the second upper support section steel 2221 and the second lower support section steel 2223 are connected, then the first middle support section steel 2212 and the second middle support section steel 2222 are connected, the welding process is adopted for connection, firm welding is ensured, after the connection is qualified, the first protection steel plate 211 and the second protection steel plate 212 are connected again, and the welding process is adopted for connection, and firm welding is ensured.
When the excavation trolley 1 is not provided with the excavation trolley safety protection device 2 according to the embodiment, and the surrounding rock is broken up to impact the excavation trolley 1 when the surrounding rock of the face is collapsed in the actual construction process, constructors on the trolley, particularly constructors on the first and second trolley 111 and 112, will be in danger. When the excavation trolley 1 is provided with the excavation trolley safety protection device 2 according to the embodiment, when the surrounding rock of the face is collapsed in the actual construction process, the surrounding rock scattered into the crushed shape is blocked by the protection device 21 so as to ensure the safety of constructors on the first trolley 111 and the second trolley 112, the protection device 21 can transmit the received impact force to the support device 22, the support device 22 can continuously transmit the force to the excavation trolley 1, and the excavation trolley 1 counteracts the received force within a certain range according to the gravity of the excavation trolley 1. After the excavation trolley safety protection device 2 is applied, the construction safety risk of site constructors constructing on the excavation trolley 1 is greatly reduced from extremely high safety risk to construction safety risk, the construction safety of the excavation trolley 1 is greatly improved, and the safety of the site constructors is greatly ensured.
According to the excavation trolley safety protection device 2, the safety protection device 21 is installed on one side, close to the face, of the excavation trolley 1, so that the excavation trolley 1 can prevent surrounding rock collapse of the face from dangerous to site constructors during construction, certain safety is achieved, and safety of the site constructors can be greatly guaranteed.
In other embodiments, the excavation trolley 1 may have a third rack 11, the third rack 11 is located above the first rack 111, such that the first rack 111 is located between the third rack 11 and the second rack 112, and at this time, a first supporting portion 221 and a first protection steel plate 211 may be additionally provided between the third rack 11 and the first rack 111.
In other embodiments, the excavation trolley safety protection device 2 may not be disposed on the side of the excavation trolley 1 close to the face, but on the whole excavation trolley 1, so as to further ensure the safety of constructors.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the utility model, and the utility model is intended to encompass such modifications and improvements.
Claims (10)
1. The utility model provides an excavation trolley safety device, its characterized in that, excavation trolley includes the rack at every level, excavation trolley safety device sets up excavation trolley is close to the one side of face, excavation trolley safety device includes protector and strutting arrangement, protector with adjacent the rack at every level is connected and with the closest ground the rack at every level with the bottom of excavation trolley is connected, protector comprises the steel sheet, strutting arrangement sets up between adjacent the rack at every level and closest ground between rack at every level and the ground, strutting arrangement comprises shaped steel.
2. The excavation trolley safety protection device according to claim 1, wherein the protection device comprises a first protection steel plate and a second protection steel plate, two ends of the first protection steel plate are respectively connected with two adjacent stages of the stages, one end of the second protection steel plate is connected with the stages closest to the ground, and the other end of the second protection steel plate is connected with the bottom of the excavation trolley.
3. An excavation trolley safety apparatus as claimed in claim 2, wherein the support means comprises a first support portion disposed between adjacent stages of the bench and a second support portion disposed between the stages closest to the ground and the ground.
4. The excavation trolley safety apparatus of claim 2, wherein the second guard steel plate is connected to the first guard steel plate.
5. A safety protection device for an excavation trolley according to claim 3, wherein the first supporting portion includes a first upper supporting section steel, a first middle supporting section steel, and a first lower supporting section steel, one end of the first upper supporting section steel is connected to one of the stages at an upper end of the adjacent two stages of the stages, the other end of the first upper supporting section steel is connected to a portion of the excavation trolley between the stages at the adjacent two stages, one end of the first lower supporting section steel is connected to one of the stages at a lower end of the stages at the adjacent two stages, the other end of the first lower supporting section steel is connected to a portion of the excavation trolley between the stages at the adjacent two stages, one end of the first middle supporting section steel is connected to the first upper supporting section steel, and the other end of the first middle supporting section steel is connected to the first lower supporting section steel.
6. A safety protection device for an excavation trolley according to claim 3, wherein the second supporting portion comprises a second upper supporting section steel, a second middle supporting section steel and a second lower supporting section steel, one end of the second upper supporting section steel is connected with the bench, the other end of the second upper supporting section steel is connected with a part of the excavation trolley between the bench and the ground, one end of the second lower supporting section steel is connected with the second protection steel plate, the other end of the second lower supporting section steel is connected with a part of the excavation trolley between the bench and the ground, one end of the second middle supporting section steel is connected with the second upper supporting section steel, and the other end of the second middle supporting section steel is connected with the second lower supporting section steel.
7. The excavation trolley safety apparatus of claim 5, wherein a distance between one end of the first middle support section steel and a bisector of the face is greater than a distance between the other end of the first middle support section steel and the bisector of the face.
8. The excavation trolley safety apparatus of claim 6, wherein a distance between one end of the second middle support section steel and a bisector of the face is greater than a distance between the other end of the second middle support section steel and the bisector of the face.
9. An excavation trolley safety apparatus as claimed in claim 1, wherein the connection is a welding process connection.
10. The excavation trolley safety protection device according to claim 1, wherein the excavation trolley further comprises a supporting frame, each stage of the supporting frame comprises a first supporting frame and a second supporting frame, the supporting frame is in a trapezoid shape without a bottom, the first supporting frame and the second supporting frame are arranged on two sides of the supporting frame, the second supporting frame is arranged between the first supporting frame and the ground, the protection device is connected with the first supporting frame and the second supporting frame and is connected with the bottom of the second supporting frame and the bottom of the supporting frame, and the supporting device is arranged between the first supporting frame and the second supporting frame and between the second supporting frame and the ground.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223285320 | 2022-12-06 | ||
| CN2022232853205 | 2022-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791229U true CN220791229U (en) | 2024-04-16 |
Family
ID=90636158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321817373.9U Active CN220791229U (en) | 2022-12-06 | 2023-07-11 | Excavation trolley safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791229U (en) |
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2023
- 2023-07-11 CN CN202321817373.9U patent/CN220791229U/en active Active
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