阅读说明：本技术 一种用于温度传感器上的阻油装置及其制作方法 (Oil blocking device for temperature sensor and manufacturing method thereof ) 是由 徐琦 于 2019-03-27 设计创作，主要内容包括：本发明公开了一种用于温度传感器上的阻油装置及其制作方法,包括导线,所述导线的首端、中部及末端分别设有第一阻油段、第二阻油段及第三阻油段,其中,第一阻油段通过冷夹机采用六角冷夹的方式固定在所述导管上,所述第二阻油段和第三阻油段均采用普通冷夹的方式固定在所述导管上；所述第二阻油段由阻油套管、灌胶层和硅橡胶层组成,所述导管在第二阻油段内开设有裸露段,所述裸露段的外侧涂覆有所述硅橡胶层。本发明中每个阻油段内均通过硅橡胶层和灌胶层保证了导线外露部分的绝缘稳定性及封闭性,并通过冷夹的方式大大减小阻油套管与导线之间的间隙,提高了导线的内部密封性,彻底杜绝漏油现象的发生,消除了安全隐患。(The invention discloses an oil blocking device for a temperature sensor and a manufacturing method thereof, wherein the oil blocking device comprises a lead, and a first oil blocking section, a second oil blocking section and a third oil blocking section are respectively arranged at the head end, the middle part and the tail end of the lead; the second oil blocking section consists of an oil blocking sleeve, a glue filling layer and a silicone rubber layer, an exposed section is arranged in the second oil blocking section of the guide pipe, and the silicone rubber layer is coated on the outer side of the exposed section. In the invention, the insulation stability and the sealing property of the exposed part of the lead are ensured by the silicone rubber layer and the glue filling layer in each oil blocking section, the gap between the oil blocking sleeve and the lead is greatly reduced by a cold clamp mode, the internal sealing property of the lead is improved, the oil leakage phenomenon is thoroughly avoided, and the potential safety hazard is eliminated.)

1. An oil blocking device for a temperature sensor is characterized by comprising a lead, wherein a first oil blocking section, a second oil blocking section and a third oil blocking section are respectively arranged at the head end, the middle part and the tail end of the lead, the first oil blocking section is fixed on a guide pipe in a hexagonal cold clamping mode through a cold clamping machine, and the second oil blocking section and the third oil blocking section are fixed on the guide pipe in a common cold clamping mode;

the second oil blocking section is composed of an oil blocking sleeve, an adhesive filling layer and a silicone rubber layer, an exposed section is arranged in the second oil blocking section of the guide pipe, the silicone rubber layer is coated on the outer side of the exposed section, the oil blocking sleeve is sleeved on the outer side of the guide pipe and seals the exposed section, and the adhesive filling layer is filled between the oil blocking sleeve and the guide pipe.

2. The oil blocking device for the temperature sensor according to claim 1, wherein: the length range of the second oil blocking section is 60-65 mm.

3. The oil blocking device for the temperature sensor according to claim 1, wherein: the length ranges of the first oil blocking section and the third oil blocking section are both 30-35 mm.

4. The oil blocking device for the temperature sensor according to claim 1, wherein: the internal structures of the first oil blocking section and the third oil blocking section are the same as the internal structure of the second oil blocking section.

5. A manufacturing method of an oil blocking device used on a temperature sensor is characterized in that: the method comprises the following steps:

step 1: cutting off the outer protective layer in the middle of the lead by using scissors to form an exposed section, and wrapping two ends of the exposed section by using a tetrafluoro belt;

step 2: lightly rubbing the surface of the exposed section and the surface of the protective layer of the single-stranded conductor by using a fine sand skin to enable the exposed section and the protective layer to be rough, and then removing the polytetrafluoroethylene tape;

and step 3: uniformly coating silicon rubber on the outer side of the exposed section, and separating the three single-strand wires;

and 5: sleeving an oil blocking sleeve on the outer side of the exposed section, and filling glue into a gap between the oil blocking sleeve and the lead after the silicon rubber is slightly dried;

step 6: cleaning the overflowing glue, and standing and curing at room temperature to form a second oil blocking section;

and 7: repeating the steps at the head and the tail of the lead to respectively form a first oil blocking section and a third oil blocking section;

and 8: fixing the first oil blocking section in a hexagonal cold clamping mode by using a cold clamping machine, and fixing the second oil blocking section and the third oil blocking section in a common cold clamping mode;

and step 9: the three single-stranded wires at the tail end of the wire are respectively sleeved with a heat-shrinkable tube, and the splicing sheet is sleeved in the heat-shrinkable tube.

Technical Field

The invention relates to the field of temperature measuring instruments, in particular to an oil blocking device for a temperature sensor and a manufacturing method thereof.

Background

In industrial processes, temperature is one of the important parameters that needs to be measured and controlled. When the temperature of an existing temperature measuring element is measured, the temperature measuring element needs to be immersed in oil or the temperature of the existing temperature measuring element needs to be measured in an oil environment, and when the existing temperature measuring element is installed and used, oil can seep out of the inside of a conducting wire, so that inconvenience and potential safety hazards are caused to field work.

Disclosure of Invention

In view of the above disadvantages of the prior art, an object of the present invention is to provide an oil blocking device for a temperature sensor and a method for manufacturing the same, which are used to solve the problem of potential safety hazard due to oil leakage of a lead in the prior art.

In order to achieve the above and other related objects, the present invention provides an oil blocking device for a temperature sensor, including a lead, where a first oil blocking section, a second oil blocking section, and a third oil blocking section are respectively disposed at a head end, a middle portion, and a tail end of the lead, where the first oil blocking section is fixed on a guide pipe by a cold clamp machine in a hexagonal cold clamp manner, and the second oil blocking section and the third oil blocking section are both fixed on the guide pipe in a common cold clamp manner;

the second oil blocking section is composed of an oil blocking sleeve, an adhesive filling layer and a silicone rubber layer, an exposed section is arranged in the second oil blocking section of the guide pipe, the silicone rubber layer is coated on the outer side of the exposed section, the oil blocking sleeve is sleeved on the outer side of the guide pipe and seals the exposed section, and the adhesive filling layer is filled between the oil blocking sleeve and the guide pipe.

Preferably, the length range of the second oil blocking section is 60-65 mm.

Preferably, the length ranges of the first oil blocking section and the third oil blocking section are both 30-35 mm.

Preferably, the internal structures of the first oil blocking section and the third oil blocking section are the same as the internal structure of the second oil blocking section.

The invention also provides a manufacturing method of the oil blocking device used on the temperature sensor, which comprises the following steps:

step 1: cutting off the outer protective layer in the middle of the lead by using scissors to form an exposed section, and wrapping two ends of the exposed section by using a tetrafluoro belt;

step 2: lightly rubbing the surface of the exposed section and the surface of the protective layer of the single-stranded conductor by using a fine sand skin to enable the exposed section and the protective layer to be rough, and then removing the polytetrafluoroethylene tape;

and step 3: uniformly coating silicon rubber on the outer side of the exposed section, and separating the three single-strand wires;

and 5: sleeving an oil blocking sleeve on the outer side of the exposed section, and filling glue into a gap between the oil blocking sleeve and the lead after the silicon rubber is slightly dried;

step 6: cleaning the overflowing glue, and standing and curing at room temperature to form a second oil blocking section;

and 7: repeating the steps at the head and the tail of the lead to respectively form a first oil blocking section and a third oil blocking section;

and 8: fixing the first oil blocking section in a hexagonal cold clamping mode by using a cold clamping machine, and fixing the second oil blocking section and the third oil blocking section in a common cold clamping mode;

and step 9: the three single-stranded wires at the tail end of the wire are respectively sleeved with a heat-shrinkable tube, and the splicing sheet is sleeved in the heat-shrinkable tube.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the first oil blocking section, the second oil blocking section and the third oil blocking section are fixedly clamped at the head end, the middle part and the tail end of the lead respectively, the insulation stability and the sealing property of the exposed part of the lead are ensured by the silicone rubber layer and the glue filling layer in each oil blocking section, and finally, the gap between the oil blocking sleeve and the lead is greatly reduced by a cold clamp mode, so that the internal sealing property of the lead is improved, the oil leakage phenomenon is completely avoided, and the potential safety hazard is eliminated.

Drawings

The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.

FIG. 1 is a schematic structural diagram of an oil blocking device for a temperature sensor according to the present invention;

fig. 2 is a partially enlarged view of an oil blocking device for a temperature sensor according to the present invention.

Wherein the reference numerals are specified as follows: the oil-resistant cable comprises a lead 1, a first oil-resistant section 2, a second oil-resistant section 3, a third oil-resistant section 4, an oil-resistant sleeve 3-1, a glue-pouring layer 3-2, a silicone rubber layer 3-3 and an exposed section 3-4.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used to limit the conditions and conditions of the present disclosure, so that the present disclosure is not technically significant, and any structural modifications, ratio changes or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in fig. 1 and 2, the present invention provides an oil blocking device for a temperature sensor, which includes a lead 1, wherein a first oil blocking section 2, a second oil blocking section 3 and a third oil blocking section 4 are respectively arranged at the head end, the middle part and the tail end of the lead 1, wherein the first oil blocking section 2 is fixed on the lead 1 by a cold clamp machine in a hexagonal cold clamp manner, and the second oil blocking section 3 and the third oil blocking section 4 are both fixed on the lead 1 in a common cold clamp manner;

the second oil blocking section 3 is composed of an oil blocking sleeve 3-1, a glue filling layer 3-2 and a silicon rubber layer 3-3, an exposed section 3-4 is arranged in the second oil blocking section 3 of the guide pipe 1, the silicon rubber layer 3-2 is coated on the outer side of the exposed section 3-4, the oil blocking sleeve 3-1 is sleeved on the outer side of the guide pipe 1 and seals the exposed section 3-4, and the glue filling layer 3-2 is filled between the oil blocking sleeve 3-1 and the guide pipe 1.

Wherein the length range of the second oil blocking section 3 is 60-65 mm; the length ranges of the first oil blocking section 2 and the third oil blocking section 4 are both 30-35 mm; the internal structures of the first oil blocking section 2 and the third oil blocking section 4 are the same as the internal structure of the second oil blocking section.

According to the invention, the first oil blocking section, the second oil blocking section and the third oil blocking section are fixedly clamped at the head end, the middle part and the tail end of the lead respectively, the insulation stability and the sealing property of the exposed part of the lead are ensured by the silicone rubber layer and the glue filling layer in each oil blocking section, and finally, the gap between the oil blocking sleeve and the lead is greatly reduced by a cold clamp mode, so that the internal sealing property of the lead is improved, the oil leakage phenomenon is completely avoided, and the potential safety hazard is eliminated.

The invention also provides a manufacturing method of the oil blocking device used on the temperature sensor, which comprises the following steps:

step 1: cutting off the outer protective layer in the middle of the lead by using scissors to form an exposed section, and wrapping two ends of the exposed section by using a tetrafluoro belt;

step 2: lightly rubbing the surface of the exposed section and the surface of the protective layer of the single-stranded conductor by using a fine sand skin to enable the exposed section and the protective layer to be rough, and then removing the polytetrafluoroethylene tape;

and step 3: uniformly coating silicon rubber on the outer side of the exposed section, and separating the three single-strand wires;

and 5: sleeving an oil blocking sleeve on the outer side of the exposed section, and filling glue into a gap between the oil blocking sleeve and the lead after the silicon rubber is slightly dried;

step 6: cleaning the overflowing glue, and standing and curing at room temperature to form a second oil blocking section;

and 7: repeating the steps at the head and the tail of the lead to respectively form a first oil blocking section and a third oil blocking section;

and 8: fixing the first oil blocking section in a hexagonal cold clamping mode by using a cold clamping machine, and fixing the second oil blocking section and the third oil blocking section in a common cold clamping mode;

and step 9: the three single-stranded wires at the tail end of the wire are respectively sleeved with a heat-shrinkable tube, and the splicing sheet is sleeved in the heat-shrinkable tube.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.