Protective device applied to shield tail grease in winter

Abstract

The utility model discloses a shield tail grease winter protection device, which comprises a grease barrel, a heating belt is wound on the grease barrel, two ends of the heating belt are respectively provided with an inner end head and an outer end head, the inner end head and the outer end head are fixed through a fixing structure, the outer wall of the heating belt is provided with a temperature control knob, and the temperature control knob is connected with an external power supply. According to the shield tail grease pump, the heating wire in the heating belt is electrified to generate heat, heat is transmitted to the grease barrel through the heat conduction layer, grease in the grease barrel is heated and melted, and the problems that the temperature is relatively cold in winter, the temperature of shield tail grease for shield tunneling is lowered, the hardness phase change is high, and a sealing piece and a pump rod of the shield tail grease pump are greatly abraded are avoided; the heat insulation layer reduces heat loss, the heat conduction layer plays a role in uniform heat conduction, the heating belt can be rapidly fixed through the magnetic structure or the hook-and-loop fastener, and the heating belt is suitable for grease barrels with different calibers.

Description

Technical Field

[0001] The utility model relates to the technical field of shield construction, in particular to a winter protection device for shield tail grease. Background Art

[0002] In shield construction in northern cities, the temperature is relatively cold in winter, and the shield tail grease used in the shield will become colder and its hardness will increase relatively. If no insulation, protection, and heating measures are taken during use, the seal and pump rod of the shield tail grease pump will be greatly worn, and the seal will be replaced frequently, increasing the economic cost of construction. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a winter protection device for shield tail grease. Compared with the shield tail seal, the device is inexpensive and can effectively save construction economic costs. It has important guiding significance for improving the economic cost control of the shield construction process.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A winter protection device for shield tail grease comprises a grease cylinder, a heating belt is wound on the grease cylinder, an inner end and an outer end are respectively arranged at two ends of the heating belt, the inner end and the outer end are fixed by a fixing structure, a temperature control knob is arranged on the outer wall of the heating belt, and the temperature control knob is connected to an external power supply.

[0006] Preferably, the heating belt comprises a heat-conducting layer, a heat-insulating layer and a heating layer, the heat-conducting layer, the heating layer and the heat-insulating layer are arranged in sequence from inside to outside, and a heating wire is arranged in the heating layer.

[0007] Preferably, the heating wires are distributed in an S shape.

[0008] Preferably, the fixing structure comprises a magnetic structure arranged at the inner end and the outer end.

[0009] Preferably, the fixing structure comprises Velcro arranged at the inner end and the outer end.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model generates heat by energizing the heating wire in the heating belt, and the heat is transferred to the grease cylinder through the heat-conducting layer, thereby heating the grease inside the grease cylinder to melt it, thereby preventing the relatively cold temperature in winter. As the temperature decreases, the hardness of the shield tail grease used in the shield machine increases, causing greater wear on the seals and pump rod of the shield tail grease pump, resulting in frequent replacement of the seals and increased construction economic costs. The insulation layer reduces heat loss, and the heat-conducting layer plays a role in uniform heat conduction. The magnetic structure or Velcro can quickly fix the heating belt, and is suitable for grease cylinders of different calibers. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more specifically and intuitively illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0012] Figure 1 It is a schematic diagram of the structure proposed by the utility model;

[0013] Figure 2 This is a cross-sectional view of the heating belt proposed by the utility model.

[0014] In the figure: grease cylinder 1, heating belt 2, heat conducting layer 21, heat insulating layer 22, heating wire 23, heating layer 24, temperature control knob 3, inner end 4, outer end 5. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] Reference Figure 1-2 A winter protection device for shield tail grease includes a grease cylinder 1, a heating belt 2 is wound around the grease cylinder 1, an inner end 4 and an outer end 5 are respectively provided at both ends of the heating belt 2, the inner end 4 and the outer end 5 are fixed by a fixing structure, a temperature control knob 3 is provided on the outer wall of the heating belt 2, and the temperature control knob 3 is connected to an external power supply.

[0017] The heating wire 23 in the heating belt 2 is energized and heated, and the heat is transferred to the grease cylinder 1 through the heat-conducting layer 21, heating the grease inside the grease cylinder 1 to melt it, thereby preventing the relatively cold temperature in winter. The hardness of the shield tail grease used for the shield machine increases with decreasing temperature, causing greater wear on the seals and pump rod of the shield tail grease pump, resulting in frequent replacement of the seals and increased construction economic costs. The thermal insulation layer 22 reduces heat loss, and the heat-conducting layer 21 plays a role in uniform heat conduction. The magnetic structure or Velcro can quickly fix the heating belt 2, which is suitable for grease cylinders 1 of different calibers.

[0018] In this embodiment, the heating belt 2 includes a heat conducting layer 21 , a heat insulating layer 22 and a heating layer 24 . The heat conducting layer 21 , the heating layer 24 and the heat insulating layer 22 are arranged from inside to outside in sequence. A heating wire 23 is arranged in the heating layer 24 .

[0019] In this embodiment, the heating wires 23 are distributed in an S shape, which increases the heating area and improves the heating efficiency.

[0020] In this embodiment, the fixing structure includes a magnetic structure arranged at the inner end 4 and the outer end 5 .

[0021] In this embodiment, the fixing structure includes Velcro arranged on the inner end 4 and the outer end 5. The magnetic structure or Velcro can quickly fix the heating belt 2 and is suitable for grease cylinders 1 with different calibers.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grease winter protection device for a shield tail, comprising a grease cartridge (1), characterized in that: A heating belt (2) is wound around the grease cylinder (1), and an inner end (4) and an outer end (5) are respectively arranged at two ends of the heating belt (2), and the inner end (4) and the outer end (5) are fixed by a fixing structure. A temperature control knob (3) is arranged on the outer wall of the heating belt (2), and the temperature control knob (3) is connected to an external power supply.

2. A winter protection device for shield tail grease according to claim 1, characterized in that: The heating belt (2) comprises a heat-conducting layer (21), a heat-insulating layer (22) and a heating layer (24), wherein the heat-conducting layer (21), the heating layer (24) and the heat-insulating layer (22) are arranged in sequence from the inside to the outside, and a heating wire (23) is arranged in the heating layer (24).

3. A winter protection device for shield tail grease according to claim 2, characterized in that: The heating wires (23) are distributed in an S shape.

4. A winter protection device for shield tail grease according to claim 3, characterized in that: The fixing structure comprises a magnetic structure arranged at the inner end (4) and the outer end (5).

5. A winter protection device for shield tail grease according to claim 4, characterized in that: The fixing structure comprises Velcro arranged on the inner end (4) and the outer end (5).

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