Transportation cart for tunnel construction
By designing a transport trolley for tunnel construction with detachable cover plates and shock absorbers, the impact of gravel drops on the trolley and staff during tunnel construction is solved, and the stability and safety of the trolley are improved, which extends the Service life and reduce dust problems.
Patent Information
- Application Number
- CN202420655842.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-01
AI Technical Summary
During tunnel construction, when the tunnel is constructed with a smaller cross-sectional area, traditional carts are easily affected by the fall of gravel on the top of the tunnel when transporting items, resulting in damage to the cart, affecting the movement of staff carts and the safety of items in the carts. .
A transportation trolley for tunnel construction including a removable cover plate is designed. The cover plate is connected by shock absorbers and is shock-absorbing with arc-shaped rotary plates, telescopic rods and shock-absorbing springs to prevent gravel from directly hitting the cart body. , and enhance the connection stability by fastening bolts, slots and anti-slip pads. The cover plate width is greater than the width of the cart opening to prevent gravel from getting stuck. An elastic shock absorbing film and a bottom anti-slip pad are installed on the top to reduce the impact of vibration.
It effectively reduces the impact of gravel drop on the cart, items in the cart and the carts for staff, extends the service life of the cover, and reduces dust problems.
Smart Images
Figure CN222179604U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of tunnel construction, and in particular relates to a transport cart for tunnel construction. Background Art
[0002] With the rapid development of my country's transportation industry, tunnels are becoming more and more common. Tunnels are engineering structures buried in the ground. They are a form of human use of underground space and can be divided into transportation tunnels, hydraulic tunnels, municipal tunnels and mining tunnels.
[0003] During the excavation of the tunnel construction, the gravel in the tunnel needs to be slaged, and the construction equipment, materials and other items need to be transported during the entire construction process. According to the construction requirements of different tunnels, the cross-sectional area of the tunnel varies. When the cross-sectional area of the tunnel is large, large-scale transportation vehicles such as muck trucks, excavators, and loaders are usually used for slag removal, and large-scale transportation vehicles such as trucks are used to transport construction equipment, materials and other items. When the cross-sectional area of the tunnel is small and large-scale transportation vehicles cannot be allowed to enter and exit, manual slag removal and transportation of construction equipment, materials and other items are required using carts.
[0004] With respect to the above-mentioned related technologies, the inventors found that when the cross-sectional area of the tunnel is small, when using traditional carts to discharge slag and transport items, there will be a problem of gravel falling from the top of the tunnel, causing damage to the cart, affecting the workers' movement of the cart, and even damaging the items in the cart; therefore, there is an urgent need for a transport cart for tunnel construction that can reduce the impact of falling gravel. Summary of the invention
[0005] In view of the shortcomings of the prior art, the purpose of the present application is to provide a transport cart for tunnel construction to solve the problem of damage to the cart caused by falling gravel during the construction of tunnels with smaller cross-sectional areas, affecting the movement of workers pushing the cart, and damaging items in the cart.
[0006] In order to achieve the above objectives, this application adopts the following technical solutions:
[0007] A transport cart for tunnel construction, comprising a cart body and a cover plate detachably connected to the cart body, wherein four corners of the cover plate are respectively connected to connecting pieces through shock-absorbing pieces, and the connecting pieces include an inverted U-shaped connecting buckle clamped with a side wall of the cart body;
[0008] The shock absorbing member comprises an arc-shaped rotating plate, a telescopic rod and a shock absorbing spring, one end of the arc-shaped rotating plate is rotatably connected to the cover plate through a connecting shaft, the other end is rotatably connected to the top of the telescopic rod through a connecting rod, and the middle part is rotatably connected to the top of the connecting buckle through a rotating shaft, and the connecting shaft, connecting rod and rotating shaft are horizontally arranged and parallel to each other; the bottom end of the telescopic rod is rotatably connected to the connecting buckle through a horizontal shaft;
[0009] The shock-absorbing spring is sleeved on the outer circumference of the telescopic rod, and one end of the shock-absorbing spring is fixedly connected to the arc-shaped rotating plate, and the other end is fixedly connected to the connecting buckle; when the shock-absorbing spring is in a natural state, there is a distance between the bottom surface of the cover plate and the top of the cart body.
[0010] By adopting the above technical scheme, when the gravel on the top of the tunnel falls and hits the cart, due to the setting of the cover plate, it will not directly hit the inside of the cart, thereby damaging the items and the cart body; and after the gravel hits the cover plate and generates vibration, the vibration can be transmitted to one end of the arc-shaped rotating plate through the connecting shaft, thereby driving the arc-shaped rotating plate to rotate with the rotating shaft as the rotating axis, and the other end of the arc-shaped rotating plate can complete a slight rotation of the arc-shaped rotating plate with the cooperation of the telescopic rod and the shock-absorbing spring, thereby achieving shock absorption, reducing the influence of the vibration on the connecting buckle, thereby reducing the influence of the vibration on the cart body, and further reducing the influence of the falling gravel on the workers pushing the cart; in this way, the present application provides a transport cart for tunnel construction, which reduces the influence of falling gravel on the cart, the items in the cart, and the travel process of the staff pushing the cart.
[0011] Furthermore, the connecting buckle is provided with a fastening bolt for fixing the connecting buckle and the side wall of the cart body.
[0012] By adopting the above technical solution, the provision of the fastening bolts further strengthens the connection between the connecting buckle and the cart body, and reduces the possibility of displacement of the connecting buckle during transportation.
[0013] Furthermore, the inner wall of the cart body is provided with a slot for the connecting buckle to engage.
[0014] Furthermore, an anti-slip pad is provided on the inner wall of the connecting buckle.
[0015] By adopting the above technical solution, the provision of the card slot and the anti-slip pad further reduces the possibility of displacement of the connecting buckle during transportation.
[0016] Furthermore, the cover plate is an arc-shaped plate protruding upward.
[0017] By adopting the above technical solution, the arc-shaped cover plate can make small gravel roll down from both ends of the cover plate, so as to avoid problems such as dust when the cart is moving.
[0018] Furthermore, an elastic shock-absorbing film is provided on the top surface of the cover plate.
[0019] By adopting the above technical solution, the elastic shock-absorbing membrane can further reduce the impact of crushed stones on the vibration of the cover plate, and at the same time can reduce the damage of the crushed stones to the cover plate, thereby extending the service life of the cover plate.
[0020] Furthermore, the width of the cover plate is greater than the width of the opening on the cart body.
[0021] By adopting the above technical solution, the width of the cover plate is greater than the width of the opening on the cart body, which can reduce the possibility of broken stones being stuck between the cover plate and the side wall of the cart body, thereby affecting the shock-absorbing effect of the shock-absorbing component.
[0022] Furthermore, an anti-collision pad is provided on the bottom surface of the cover plate.
[0023] By adopting the above technical solution, the provision of the anti-collision pad further reduces the possibility that the vibration of the cover plate affects the movement of the cart or causes damage to the cart.
[0024] Compared with the prior art, this application has the following technical effects:
[0025] 1. The present application provides a transport cart for tunnel construction. When gravel from the top of the tunnel falls and hits the cart, the cover plate will not directly hit the inside of the cart, thereby damaging the items and the cart body; and after the gravel hits the cover plate and generates vibration, the vibration can be transmitted to one end of the arc-shaped rotating plate through the connecting shaft, thereby driving the arc-shaped rotating plate to rotate with the rotating shaft as the rotating shaft, and the other end of the arc-shaped rotating plate can complete a slight rotation of the arc-shaped rotating plate with the cooperation of the telescopic rod and the shock-absorbing spring, thereby achieving shock absorption, reducing the influence of the vibration on the connecting buckle, thereby reducing the influence of the vibration on the cart body, and further reducing the influence of the falling gravel on the movement of the staff pushing the cart; in this way, the present application provides a transport cart for tunnel construction, which reduces the influence of the falling gravel on the cart, the items in the cart, and the movement of the staff pushing the cart.
[0026] 2. The provision of fastening bolts, card slots and anti-slip pads further strengthens the connection between the connecting buckle and the cart body, reducing the possibility of displacement of the connecting buckle during transportation.
[0027] 3. The arc-shaped cover plate can make small gravel roll down from both ends of the cover plate to avoid dust and other problems during the movement of the cart; and an elastic shock-absorbing membrane is provided on the top of the cover plate to further reduce the impact of gravel on the vibration of the cover plate, and at the same time reduce the damage of gravel to the cover plate, thereby extending the service life of the cover plate.
[0028] 4. The width of the cover plate is greater than the width of the opening on the cart body, which can reduce the possibility of broken stones being stuck between the cover plate and the side wall of the cart body, thereby affecting the shock-absorbing effect of the shock-absorbing component.
[0029] 5. The setting of the anti-collision pad at the bottom of the cover further reduces the possibility of the vibration of the cover affecting the movement of the cart or causing damage to the cart. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 This is a schematic diagram of the overall structure of a transport cart for tunnel construction in an embodiment of the present application;
[0031] Figure 2 for Figure 1Partial structure diagram of part A.
[0032] Explanation of the accompanying drawings: 1. Cart body; 2. Cover plate; 3. Connecting piece; 31. Connecting plate; 32. Connecting buckle; 4. Shock absorber; 41. Arc-shaped rotating plate; 42. Telescopic rod; 5. Fastening bolt. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-2 The specific contents of this application are further explained in detail.
[0034] The present application discloses a transport cart for tunnel construction, referring to Figure 1 and Figure 2 , including a cart body 1, a cover plate 2 detachably connected to the cart body 1, the four corners of the cover plate 2 are respectively connected to connecting members 3 through shock absorbing members 4, and the connecting member 3 includes an inverted U-shaped connecting buckle 32 clamped with the side wall of the cart body 1.
[0035] The shock-absorbing component 4 includes an arc-shaped rotating plate 41, a telescopic rod 42 and a shock-absorbing spring. One end of the arc-shaped rotating plate 41 is rotatably connected to the cover plate 2 through a connecting shaft, the other end is rotatably connected to the top of the telescopic rod 42 through a connecting rod, and the middle part is rotatably connected to the top of the connecting buckle 32 through a rotating shaft. The connecting shaft, the connecting rod and the rotating shaft are horizontally arranged and parallel to each other, and the connecting shaft and the connecting rod are all connected to the arc-shaped rotating plate 41 through bearings; the bottom end of the telescopic rod 42 is rotatably connected to the connecting buckle 32 through a horizontal shaft.
[0036] Two connecting plates 31 are arranged at the top of the connecting buckle 32, and the rotating shaft passes through the middle of the arc-shaped rotating plate 41 and the two ends are respectively connected to the connecting plates 31 by bearings. In turn, the rotating shaft can be connected to the top of the connecting buckle 32 by the connecting plate 31.
[0037] The shock-absorbing spring is sleeved on the outer circumference of the telescopic rod 42, and one end of the shock-absorbing spring is fixedly connected to the arc-shaped rotating plate 41, and the other end is fixedly connected to the connecting buckle 32; when the shock-absorbing spring is in a natural state, there is a distance between the bottom surface of the cover plate 2 and the top of the cart body 1.
[0038] In this way, when gravel from the top of the tunnel falls and hits the cart, due to the setting of the cover plate 2, it will not directly hit the inside of the cart, thereby damaging the items and the cart body 1; and after the gravel hits the cover plate 2 and generates vibration, the vibration can be transmitted to one end of the arc-shaped rotating plate 41 through the connecting shaft, thereby driving the arc-shaped rotating plate 41 to rotate with the rotating shaft as the rotating axis, and the other end of the arc-shaped rotating plate 41 can complete a slight rotation of the arc-shaped rotating plate 41 with the cooperation of the telescopic rod 42 and the shock-absorbing spring, thereby achieving shock absorption, reducing the influence of the vibration on the connecting buckle 32, thereby reducing the influence of the vibration on the cart body 1, and further reducing the influence of the falling gravel on the movement of the staff pushing the cart; in this way, the present application provides a transport cart for tunnel construction, which reduces the influence of falling gravel on the cart, the items in the cart, and the movement of the staff pushing the cart.
[0039] Reference Figure 1 and Figure 2 The connecting buckle 32 is provided with a fastening bolt 5 for fixing the connecting buckle 32 and the side wall of the cart body 1; and the inner wall of the cart body 1 is provided with a slot for the connecting buckle 32 to engage; and the inner wall of the connecting buckle 32 is also provided with an anti-skid pad. In this way, the fastening bolt 5, the slot and the anti-skid pad further strengthen the connection between the connecting buckle 32 and the cart body 1, and reduce the possibility of displacement of the connecting buckle 32 during transportation.
[0040] In this embodiment, the cover plate 2 is specifically an arc-shaped plate protruding upward, and the width of the cover plate 2 is greater than the width of the opening on the cart body 1. In addition, the top surface of the cover plate 2 is provided with an elastic shock-absorbing film, and the bottom surface is provided with an anti-collision pad.
[0041] In this way, the cover plate 2 is set to be arc-shaped so that small gravel can roll down from both ends of the cover plate 2, so as to avoid dust and other problems during the movement of the cart; the width of the cover plate 2 is greater than the width of the opening on the cart body 1, which can reduce the gravel stuck between the cover plate 2 and the side wall of the cart body 1, thereby affecting the shock-absorbing effect of the shock-absorbing component.
[0042] The elastic shock-absorbing membrane on the top of the cover plate 2 can further reduce the impact of gravel on the vibration of the cover plate 2, and at the same time reduce the damage of gravel to the cover plate 2, thereby extending the service life of the cover plate 2. The setting of the anti-collision pad at the bottom further reduces the possibility that the vibration of the cover plate 2 affects the movement of the cart or causes damage to the cart.
[0043] In summary, the present application provides a transport cart for tunnel construction, which can simultaneously reduce the impact of falling gravel on the cart, items in the cart, and the movement of the cart by workers.
[0044] The implementation principle of the transport cart for tunnel construction of the present application is as follows: when the staff implements the cart transportation, when the gravel on the top of the tunnel falls and hits the cart, due to the setting of the cover plate 2, it will not directly hit the inside of the cart, thereby damaging the items and the cart body 1; and after the gravel hits the cover plate 2 and generates vibration, the vibration can be transmitted to one end of the arc-shaped rotating plate 41 through the connecting shaft, thereby driving the arc-shaped rotating plate 41 to rotate with the rotating shaft as the rotating axis, and the other end of the arc-shaped rotating plate 41 can complete the slight rotation of the arc-shaped rotating plate 41 under the cooperation of the telescopic rod 42 and the shock-absorbing spring, thereby achieving shock absorption, reducing the influence of the vibration on the connecting buckle 32, thereby reducing the influence of the vibration on the cart body 1, and further reducing the influence of the falling gravel on the movement of the staff pushing the cart;
[0045] Therefore, the present application provides a transport cart for tunnel construction, which reduces the impact of falling gravel on the cart, items in the cart, and the movement of the cart by workers; it solves the problem in the prior art that when using traditional carts to unload slag and transport items, gravel from the top of the tunnel may fall, causing damage to the cart, affecting the movement of workers pushing the cart, and even damaging items in the cart.
Claims
1. A transport cart for tunnel construction, Features: It comprises a cart body (1) and a cover plate (2) detachably connected to the cart body (1), wherein the four corners of the cover plate (2) are respectively connected to connecting members (3) via shock absorbing members (4), and the connecting member (3) comprises an inverted U-shaped connecting buckle (32) clamped to the side wall of the cart body (1); The shock absorbing member (4) comprises an arc-shaped rotating plate (41), a telescopic rod (42) and a shock absorbing spring. One end of the arc-shaped rotating plate (41) is rotatably connected to the cover plate (2) via a connecting shaft, the other end is rotatably connected to the top of the telescopic rod (42) via a connecting rod, and the middle part is rotatably connected to the top of the connecting buckle (32) via a rotating shaft. The connecting shaft, the connecting rod and the rotating shaft are arranged horizontally and parallel to each other. The bottom end of the telescopic rod (42) is rotatably connected to the connecting buckle (32) via a horizontal shaft. The shock absorbing spring is sleeved on the outer peripheral surface of the telescopic rod (42), and one end of the shock absorbing spring is fixedly connected to the arc-shaped rotating plate (41), and the other end is fixedly connected to the connecting buckle (32); when the shock absorbing spring is in a natural state, there is a distance between the bottom surface of the cover plate (2) and the top of the cart body (1).
2. A transport cart for tunnel construction as claimed in claim 1, It is characterized in that The connecting buckle (32) is provided with a fastening bolt (5) for fixing the connecting buckle (32) and the side wall of the cart body (1).
3. A transport cart for tunnel construction as claimed in claim 1, It is characterized in that The inner wall of the cart body (1) is provided with a slot for the connecting buckle (32) to be engaged.
4. A transport cart for tunnel construction as claimed in claim 1, It is characterized in that The inner wall of the connecting buckle (32) is provided with an anti-slip pad.
5. A transport cart for tunnel construction as claimed in claim 1, It is characterized in that The cover plate (2) is an arc-shaped plate protruding upward.
6. A transport cart for tunnel construction as claimed in claim 1, It is characterized in that The top surface of the cover plate (2) is provided with an elastic shock-absorbing film.
7. A transport cart for tunnel construction as claimed in claim 1, It is characterized in that The width of the cover plate (2) is greater than the width of the opening on the cart body (1).
8. A transport cart for tunnel construction as claimed in claim 7, It is characterized in that The bottom surface of the cover plate (2) is provided with an anti-collision pad.