Simple walking distance limiting device

Abstract

The utility model discloses a simple walking distance limiting device which comprises an L-shaped baffle, a supporting cross beam and a triangular support, a T-shaped sliding block is arranged at the bottom end of the L-shaped baffle and movably embedded into a T-shaped sliding groove in the top end of the supporting cross beam, rubber layers are arranged on the two sides of the T-shaped sliding block, the elastic rubber layers are elastically attached to the side faces of the T-shaped sliding groove, and the triangular support is arranged on the supporting cross beam. The supporting beam is fixedly installed at the top end of the triangular support, and the walking distance limiting device is installed on the ground and can directly face the limiting sensor. By arranging the two sets of limiting sensors and the walking distance limiting device, the maintenance trolley can conduct maintenance within a designated range, manpower can be effectively saved, and the burden of workers is relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction and maintenance equipment, and specifically relates to a simple travel distance limiting device. Background Art

[0002] During the secondary lining construction of the tunnel, formwork is required to pour concrete on the tunnel side walls and top arch surface. After pouring, the concrete in the tunnel needs to be cured. The conventional curing method uses a water pipe to spray on the workbench, which is time-consuming, labor-intensive and inefficient.

[0003] In order to solve the above problems, the staff used a trolley mobile spray for maintenance. However, the secondary lining construction of the tunnel is carried out in sections and maintained in sections. The trolley mobile spray needs to be manually moved, which increases the burden on the staff and wastes manpower. Utility Model Content

[0004] The utility model aims to provide a simple travel distance limiting device so that the maintenance trolley can perform maintenance within a specified range.

[0005] The technical solution adopted by the utility model is a simple walking distance limiting device, including an L-shaped baffle, a supporting beam and a triangular bracket. The bottom end of the L-shaped baffle is provided with a T-shaped slider, the T-shaped slider is movably embedded in the T-shaped slide groove at the top end of the supporting beam, the supporting beam is fixedly installed on the top end of the triangular bracket, and the walking distance limiting device is installed on the ground and can face the limit sensor.

[0006] Preferably, reinforcing plates are respectively provided between the side plates and the bottom plate of the L-shaped baffle near both ends, and slots are obliquely provided on the reinforcing plates.

[0007] Preferably, rubber layers are provided on both sides of the T-shaped sliding block, and the elastic rubber layers are elastically attached to the side surfaces of the T-shaped sliding groove.

[0008] Preferably, the above-mentioned triangular bracket includes a first leg arranged at the front end and two second legs symmetrically arranged at the rear end, the horizontal line between the first leg and the two second legs forms an isosceles triangle, and the middle parts of the three legs of the triangular bracket are connected with reinforcing ribs in sequence.

[0009] Preferably, the top of each leg of the above-mentioned triangular bracket is bent and welded to the mounting plate, and the bottom end is bent inwards.

[0010] Preferably, an iron shoe is provided at the bottom of the above-mentioned triangular bracket on the side facing the trolley traveling gantry.

[0011] Preferably, two limit sensors are used, which are respectively installed at the front and rear ends of the walking door frame of the trolley near the bottom.

[0012] Compared with the prior art, the beneficial effect of the utility model is that by setting two sets of limit sensors and travel distance limit devices, the maintenance trolley can be maintained within a specified range, which can effectively save manpower and reduce the burden on staff; the T-shaped slider and T-shaped slide groove structure are adopted to facilitate the lateral adjustment of the baffle. When grooves or unevenness are set on the side, but the sensor is located outside, it is necessary to adjust the lateral position for adaptive matching; the use of a triangular bracket support has the advantage of stability, and the triangular bracket itself is light in weight and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the front view of a simple travel distance limiter;

[0014] Figure 2 It is a side view of a simple travel distance limit device. DETAILED DESCRIPTION

[0015] The present invention will be further explained below in conjunction with the accompanying drawings to facilitate better understanding by those skilled in the art.

[0016] Example 1

[0017] like Figure 1-2 As shown, a simple travel distance limit device includes an L-shaped baffle 1, a supporting beam 2 and a triangular bracket 3. A T-shaped slider 4 is provided at the bottom of the L-shaped baffle 1. The T-shaped slider 4 is movably embedded in the T-shaped slide 5 at the top of the supporting beam 2. Rubber layers 11 are provided on both sides of the T-shaped slider 4. The rubber layer 4 elastically fits on the side of the T-shaped slide 5 to achieve clamping, and the baffle has better stability. The bottom end of the supporting beam 2 is welded to the top of the triangular bracket 3. The travel distance limit device is installed on the ground and can face the limit sensor. Two limit sensors are used, which are respectively installed at the front and rear ends of the walking door frame of the trolley near the bottom. By setting two sets of limit sensors and travel distance limit devices, the maintenance trolley can be maintained within the specified range, which can effectively save manpower and reduce the workload.

[0018] Furthermore, reinforcing plates 6 are provided between the side plates and the bottom plate of the L-shaped baffle 1 near both ends, for increasing the structural strength and stability of the L-shaped baffle 1. Slots 7 are obliquely provided on the reinforcing plates 6, for reducing material usage and device weight while ensuring structural strength.

[0019] The above-mentioned triangular bracket 3 includes a first leg 9 arranged at the front end and two second legs 8 symmetrically arranged at the rear end. The horizontal line between the first leg 9 and the two second legs 8 is an isosceles triangle, and the top of each leg of the triangular bracket 3 is bent and welded to the mounting plate 13 to increase the contact area and ensure reliable connection. The bottom end of each leg is bent inwards for easy placement and stability. The middle parts of the three legs of the triangular bracket 3 are sequentially connected with reinforcing ribs 10. The triangular bracket 3 of this structure has the advantage of stable support, and the material consumption and device weight are reduced, and it is easy to use.

[0020] An iron shoe 12 is provided at the bottom of the triangular bracket 3 on one side facing the trolley travel gantry, and the iron shoe 12 can brake the travel wheel of the electric mechanism to play a role of safety limit.

[0021] Working principle: In the set tunnel maintenance section, the travel distance limit device is installed on the ground and can face the limit sensor. Two limit sensors are used, which are installed near the bottom at the front and rear ends of the travel door frame of the trolley. When the maintenance trolley is not in use, the travel door frame moves to the starting position, the water tank is filled with water, and the two travel distance limit devices are installed at two extreme positions in the set tunnel maintenance section. When the infrared temperature sensor detects that the temperature at the top of the tunnel reaches the set value, the spray pipe is controlled to spray water toward the inner wall of the tunnel, and the electric travel mechanism is controlled to drive the maintenance trolley to move back and forth according to the two extreme positions in the set tunnel maintenance section at the set speed. The infrared temperature sensor and the outdoor temperature are combined to determine whether the concrete on the inner wall of the tunnel meets the set maintenance requirements. If the set requirements are met, the maintenance trolley is controlled to the starting position, and the next round of maintenance repeats the maintenance operation process.

[0022] The above-mentioned embodiments are only for describing the preferred implementation of the utility model, and are not intended to limit the scope of the utility model. Without departing from the design spirit and principle of the utility model, various modifications and improvements made by those skilled in the art to the technical solution of the utility model should fall within the scope of protection determined by the claims of the utility model.

Claims

1. A simple travel distance limiting device, characterized in that: The invention comprises an L-shaped baffle plate (1), a supporting crossbeam (2) and a triangular bracket (3); a T-shaped slider (4) is provided at the bottom end of the L-shaped baffle plate (1); the T-shaped slider (4) is movably embedded in a T-shaped slide groove (5) at the top end of the supporting crossbeam (2); the supporting crossbeam (2) is fixedly mounted on the top end of the triangular bracket (3); and a travel distance limit device is mounted on the ground and can face the limit sensor.

2. A simple travel distance limiting device according to claim 1, characterized in that: Reinforcement plates (6) are respectively provided between the side plates and the bottom plate of the L-shaped baffle (1) near both ends, and slot holes (7) are obliquely provided on the reinforcement plates (6).

3. A simple travel distance limiting device according to claim 1, characterized in that: The T-shaped sliding block (4) is provided with rubber layers (11) on both sides, and the rubber layers (11) are elastically attached to the side surfaces of the T-shaped sliding groove (5).

4. A simple travel distance limiting device according to claim 1, characterized in that: The triangular support (3) comprises a first support leg (9) arranged at the front end and two second support legs (8) symmetrically arranged at the rear end, the horizontal line between the first support leg (9) and the two second support legs (8) forming an isosceles triangle, and the middle parts of the three support legs of the triangular support (3) are sequentially connected with reinforcing ribs (10).

5. A simple travel distance limiting device according to claim 1 or 4, characterized in that: The top of each leg of the triangular bracket (3) is bent and welded to the mounting plate (13), and the bottom ends are bent inwards.

6. A simple travel distance limiting device according to claim 1, characterized in that: An iron shoe (12) is provided at the bottom of the triangular bracket (3) on the side facing the trolley travel gantry.

7. A simple travel distance limiting device according to claim 1, characterized in that: The limit sensors are two and are respectively installed at the front and rear ends of the walking door frame of the trolley near the bottom.

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