Temperature-adjustable electric heating shovel for asphalt detection

Abstract

The utility model discloses a temperature -adjusting electric heat shovel for asphalt detection, including operation handle, the circuit board is arranged in operation handle, and the one end of operation handle is provided with the outward extension of heating core, the outside of heating core is provided with the outer cover, and the outer cover is provided with the heat -conducting tool holder at its end, be provided with doctor knife on heat -conducting tool holder, and doctor knife is fixedly connected with heat -conducting tool holder through locking pin. The utility model discloses setting locking pin on heat -conducting tool holder, cooperate the pin hole and the movable gap on doctor knife, so that the staff need not use the tool, can loosen locking pin, thereby will take off doctor knife on heat -conducting tool holder, and the dismounting operation is in the process, need not completely take off locking pin on heat -conducting tool holder and can complete the dismounting replacement operation of doctor knife, so the replacement operation of detection personnel brings great convenience.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt testing equipment, specifically to an adjustable temperature electric heating shovel for asphalt testing. Background Technology

[0002] Asphalt undergoes rigorous testing during production, construction, and use. Among these tests, the softening point and ductility of asphalt are crucial indicators of its compliance. These tests require pouring asphalt into a cylindrical or rectangular testing mold, followed by scraping the excess asphalt out of the mold with a shovel. However, due to the properties of asphalt, the cooled asphalt tends to stick to the shovel head during this scraping process, making cleaning a tedious task. Therefore, to avoid this cumbersome cleaning process, scrapers are mounted on the heating element of devices such as soldering irons, which heat the surface of the scraper. In this way, during leveling operations, because the scraper is at a high temperature, the asphalt will not cool down and solidify on the scraper quickly. Inspectors can easily wipe off the asphalt on the high-temperature scraper. Traditional electric heated scrapers have scrapers that are directly fixed to the blade with screws. However, with the increase in the number of times and the time of use, the scraper will inevitably age, rust, be chipped, or be damaged. At this time, the scraper needs to be replaced. When replacing the scraper, tools are needed to unscrew the screws that fix the scraper. Since the screws used to fix the scraper are not very large, the screws may fall out or be lost. All of these factors bring great inconvenience to the scraper replacement operation. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an adjustable temperature electric heating shovel for asphalt testing, thereby solving the aforementioned technical problems.

[0004] The present invention adopts the following technical solution: an adjustable temperature electric heating shovel for asphalt testing, including an operating handle, a circuit board disposed inside the operating handle, a heating core extending outward at one end of the operating handle, an outer cover disposed outside the heating core, a heat-conducting blade seat disposed at the end of the outer cover, a scraper disposed on the heat-conducting blade seat, and the scraper being fixedly connected to the heat-conducting blade seat by a locking pin;

[0005] The locking pin includes a cylindrical pin, and a connecting pin is provided at its rear end. The diameter of the connecting pin is smaller than the diameter of the cylindrical pin. The heat-conducting blade holder is provided with a groove to facilitate the insertion of the scraper. The front side of the heat-conducting blade holder is provided with a pin hole that matches the cylindrical pin. The scraper is provided with a through hole at the position corresponding to the pin hole. The cylindrical pin is inserted into the through hole along the pin hole. The rear side of the heat-conducting blade holder is provided with a movable hole that matches the connecting pin. The connecting pin is inserted into the movable hole and can move left and right, with its end away from the cylindrical pin extending to the outside of the heat-conducting blade holder. The lower end of the scraper is provided with a movable notch at the position corresponding to the through hole. The movable notch and the through hole are interconnected.

[0006] Furthermore, an operating button is provided at one end of the cylindrical pin located outside the heat-conducting knife holder, and the diameter of the operating button is larger than the diameter of the cylindrical pin.

[0007] Furthermore, a retaining ring is provided at one end of the connecting pin located outside the heat-conducting knife holder, and the diameter of the retaining ring is larger than the diameter of the connecting pin.

[0008] Furthermore, the heat-conducting knife holder has an internal threaded hole in the pin hole, and the cylindrical pin near the operating button has an external thread, and the cylindrical pin is threadedly connected to the heat-conducting knife holder.

[0009] Furthermore, the heat-conducting blade holder has a mounting head at the end away from the scraper, and the mounting head is fixed to the end of the outer cover.

[0010] Furthermore, the heating element and the outer cover are fixedly connected to the end of the operating handle via a high-temperature resistant connector.

[0011] The above-mentioned technical solution of this utility model has the following beneficial effects: By setting a locking pin on the heat-conducting knife holder, and cooperating with the pin hole and movable notch on the scraper, the staff can loosen the locking pin without using tools, thereby removing the scraper from the heat-conducting knife holder. Moreover, during the disassembly operation, the scraper can be disassembled and replaced without completely removing the locking pin from the heat-conducting knife holder, which greatly facilitates the replacement operation for the testing personnel. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the main plan view structure of an embodiment of this utility model;

[0014] Figure 2 This is a schematic diagram of the planar structure of the scraper according to an embodiment of the present utility model;

[0015] Figure 3 This is a schematic cross-sectional view of the scraper during disassembly in an embodiment of this utility model;

[0016] Figure 4 This is a schematic cross-sectional view of the scraper assembly in an embodiment of this utility model. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0019] like Figure 1-4 As shown, this utility model embodiment provides an adjustable temperature electric heating shovel for asphalt testing, including an operating handle 1, a circuit board (not shown in the figure) is provided inside the operating handle 1, a heating core (not shown in the figure) extending outward is provided at one end of the operating handle 1, an outer cover 2 is provided on the outside of the heating core, a heat-conducting blade seat 3 is provided at the end of the outer cover 2, a scraper 4 is provided on the heat-conducting blade seat 3, and the scraper 4 is fixedly connected to the heat-conducting blade seat 3 by a locking pin;

[0020] The locking pin includes a cylindrical pin 5, and a connecting pin 6 is provided at the rear end of the cylindrical pin 5. The diameter of the connecting pin 6 is smaller than the diameter of the cylindrical pin 5. The heat-conducting knife holder 3 is provided with a knife groove for easy insertion of the scraper 4. The front side of the heat-conducting knife holder 3 is provided with a pin hole that matches the cylindrical pin 5. The scraper 4 is provided with a through hole 7 at the position corresponding to the pin hole. The cylindrical pin 5 is inserted into the through hole 7 along the pin hole. The rear side of the heat-conducting knife holder 3 is provided with a movable hole that matches the connecting pin 6. The connecting pin 6 can be inserted into the movable hole and can move left and right. Its end away from the cylindrical pin 5 extends to the outside of the heat-conducting knife holder 3. The lower end of the scraper 4 is provided with a movable notch 8 at the position corresponding to the through hole 7. The movable notch 8 and the through hole 7 are interconnected.

[0021] An operating button 9 is provided at one end of the cylindrical pin 5 located outside the heat-conducting knife holder 3. The diameter of the operating button 9 is larger than the diameter of the cylindrical pin 5.

[0022] A retaining ring 10 is provided at one end of the connecting pin 6 outside the heat-conducting knife holder 3. The diameter of the retaining ring 10 is larger than the diameter of the connecting pin 6.

[0023] The operating button 9 can be used to easily drive the entire locking pin to rotate, and the cylindrical pin 5 and the retaining ring 10 can also restrict the movement of the entire locking pin, so that it cannot be disengaged from the heat-conducting knife holder 3.

[0024] The heat-conducting knife holder 3 has an internal threaded hole in the pin hole, and the cylindrical pin 5 has an external thread near the operating button 9. The cylindrical pin 5 is threadedly connected to the heat-conducting knife holder 3.

[0025] The heat-conducting blade holder 3 has a mounting head 11 at the end away from the scraper 4, and the mounting head 11 is fixed to the end of the outer cover 2.

[0026] The heating element and outer cover 2 are fixedly connected to the end of the operating handle 1 via a high-temperature resistant connector 12.

[0027] In assembling the scraper 4, the scraper 4 is inserted into the groove on the heat-conducting blade holder 3. Before insertion, the cylindrical pin 5 is first unscrewed outwards, so that the connecting pin 6 is located in the pin hole of the heat-conducting blade holder 3. Then, the movable notch 8 at the lower end of the scraper 4 is aligned with the position of the connecting pin 6 and inserted. As the scraper 4 is inserted, the connecting pin 6 will enter the through hole 7 of the scraper 4 along the movable notch 8. When the lower end of the scraper 4 abuts against the bottom of the groove in the heat-conducting blade holder 3, the operating knob 9 is rotated by hand to screw the entire cylindrical pin 5 into the through hole 7 of the scraper 4, thereby making... The entire cylindrical pin 5 is filled into the entire through hole 7. Under the restriction of the cylindrical pin 5, the scraper 4 is fixed in the heat-conducting blade holder 3 and cannot be removed. At this time, the connecting pin 6 moves to the outside of the entire heat-conducting blade holder 3. When replacing the scraper 4, the cylindrical pin 5 is moved out of the through hole 7. At this time, the connecting pin 6 enters the through hole 7. Then, the scraper 4 is pulled out, and the movable notch 8 at the lower end of the scraper 4 can be pulled out along the connecting pin 6. During the entire operation, it is not necessary to remove the entire locking pin, and the operation can be completed without the aid of tools, which greatly facilitates the disassembly and assembly of the scraper 4.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An adjustable temperature electric heating shovel for asphalt testing, comprising an operating handle, a circuit board disposed within the operating handle, a heating core extending outward at one end of the operating handle, an outer cover disposed outside the heating core, a heat-conducting blade holder disposed at the end of the outer cover, and a scraper disposed on the heat-conducting blade holder, characterized in that: The scraper is fixedly connected to the heat-conducting blade holder by a locking pin; The locking pin includes a cylindrical pin, and a connecting pin is provided at its rear end. The diameter of the connecting pin is smaller than the diameter of the cylindrical pin. The heat-conducting blade holder is provided with a groove to facilitate the insertion of the scraper. The front side of the heat-conducting blade holder is provided with a pin hole that matches the cylindrical pin. The scraper is provided with a through hole at the position corresponding to the pin hole. The cylindrical pin is inserted into the through hole along the pin hole. The rear side of the heat-conducting blade holder is provided with a movable hole that matches the connecting pin. The connecting pin is inserted into the movable hole and can move left and right, with its end away from the cylindrical pin extending to the outside of the heat-conducting blade holder. The lower end of the scraper is provided with a movable notch at the position corresponding to the through hole. The movable notch and the through hole are interconnected.

2. The adjustable temperature electric heating shovel for asphalt testing according to claim 1, characterized in that: An operating button is provided at one end of the cylindrical pin located outside the heat-conducting knife holder, and the diameter of the operating button is larger than the diameter of the cylindrical pin.

3. The adjustable temperature electric heating shovel for asphalt testing according to claim 2, characterized in that: A retaining ring is provided at one end of the connecting pin located outside the heat-conducting knife holder, and the diameter of the retaining ring is larger than the diameter of the connecting pin.

4. The adjustable temperature electric heating shovel for asphalt testing according to claim 3, characterized in that: The heat-conducting knife holder has an internal threaded hole in its pin hole, and the cylindrical pin near the operating button has an external thread. The cylindrical pin is threadedly connected to the heat-conducting knife holder.

5. The adjustable temperature electric heating shovel for asphalt testing according to claim 1, characterized in that: The heat-conducting blade holder has a mounting head at the end away from the scraper, and the mounting head is fixed to the end of the outer cover.

6. The adjustable temperature electric heating shovel for asphalt testing according to claim 1, characterized in that: The heating element and the outer cover are fixedly connected to the end of the operating handle via a high-temperature resistant connector.

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