Protective structure for fire painting brush

Abstract

The utility model discloses a fire painting brush protection structure, which belongs to the technical field of fire painting and comprises a painting brush body and a heat insulation shell formed on the painting brush body, a limiting mechanism is arranged outside the heat insulation shell, and a protection mechanism is arranged in the limiting mechanism. The limiting mechanism comprises a limiting sleeve detachably installed on the heat insulation shell. A sliding groove and a clamping groove which are perpendicular to each other are symmetrically formed in the outer wall of the limiting sleeve. According to the fire painting brush, the limiting mechanism and the protection mechanism are arranged on the periphery of a traditional fire painting brush, when a user makes a painting, the guide inner barrel and the protection outer barrel can be shrunk into the limiting sleeve through the clamping trip shaft, a heat conduction brush head is exposed out to facilitate painting, the guide inner barrel is tightly jacked by the telescopic spring, and after the clamping trip shaft loses clamping force, the heat conduction brush head can stretch out of the limiting sleeve. And the protective outer cylinder is popped out to protect the heat-conducting pen point, foreign objects are prevented from being accidentally injured, and the protective property of the paintbrush is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire painting technology, and in particular to a fire-resistant paintbrush protection structure. Background Technology

[0002] The term "fire-burning brush" generally refers to the tools and materials used in painting, where burning is employed as a technique. A fire-burning brush is not a specific physical entity, but rather a unique painting method. The primary tool for fire-burning brushes is a high-temperature iron stylus or soldering iron. This tool needs to withstand high temperatures and is typically made of a special alloy to ensure stable operation even at high temperatures.

[0003] Currently used high-temperature styluses for pyrography lack protective mechanisms for their hot tips. Protection is only provided when the user places the stylus inside a protective stand on a table to prevent burns to the user or external objects. However, these stands are often simple in design and prone to collapse upon accidental contact, potentially damaging other objects. Furthermore, users may instinctively drop the stylus if they accidentally touch the hot area, interfering with the artwork and potentially causing injury.

[0004] To address the aforementioned issues, a fire-resistant paintbrush protection structure is proposed. Utility Model Content

[0005] The main purpose of this invention is to provide a fire-resistant paintbrush protection structure, which solves the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved by adopting the following technical solution:

[0007] A fire-resistant paintbrush structure includes a paintbrush body and a heat-insulating shell formed on the paintbrush body. A limiting mechanism is provided on the outside of the heat-insulating shell, and a protective mechanism is provided inside the limiting mechanism.

[0008] The limiting mechanism includes a limiting sleeve that is detachably installed with the heat insulation shell. The outer wall of the limiting sleeve is symmetrically provided with mutually perpendicular sliding grooves and locking grooves.

[0009] The protective mechanism includes a locking shaft that is slidably installed with the slide groove, and a guide inner cylinder is fixedly connected between the locking shafts. A protective outer cylinder is formed at the bottom of the guide inner cylinder.

[0010] Furthermore, the heat insulation shell contains a heating core, one end of which is surrounded by a heat-conducting pen tip, and the other end of which is electrically connected to a power cord.

[0011] Furthermore, the limiting sleeve is made of heat-insulating rubber, the depth of the locking groove is 5mm, and the length of the locking groove is 12mm.

[0012] Furthermore, the length of the clamping shaft is 3cm, and the guide inner cylinder slides in a limited manner against the outer wall of the heat insulation shell and the inner wall of the limiting sleeve.

[0013] Furthermore, the protective outer cylinder is made of a retractable metal material with a hollowed-out structure on the outside.

[0014] Furthermore, a telescopic spring is fixedly installed at the top of the guide inner cylinder, the outer peripheral wall of the telescopic spring slides in contact with the inner wall of the limiting sleeve, and the top of the telescopic spring is fixedly connected to the top of the limiting sleeve.

[0015] The beneficial technical effects of this utility model are as follows:

[0016] This invention incorporates a limiting mechanism and a protective mechanism around the traditional fire-heated paintbrush. When the user is painting, the guide inner cylinder and the protective outer cylinder can be retracted into the limiting sleeve by a locking shaft, exposing the heat-conducting brush tip for easy painting. The guide inner cylinder is held in place by a telescopic spring, and when the locking shaft loses its clamping force, the protective outer cylinder pops out to protect the heat-conducting brush tip, preventing accidental damage to foreign objects and improving the paintbrush's protective properties. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a preferred embodiment of a fire-resistant paintbrush structure according to the present invention in a holding state;

[0018] Figure 2 This is a schematic diagram of the structure of the limiting mechanism and the protective mechanism after separation from the paintbrush body in a preferred embodiment of a fire-resistant paintbrush structure according to the present invention.

[0019] Figure 3 This is a schematic diagram of the structure after the limiting mechanism and the protective mechanism are separated in a preferred embodiment of a fire-resistant paintbrush structure according to the present invention.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Brush body; 101. Heat-insulating outer shell; 102. Power cord; 103. Heat-conducting brush tip; 2. Limiting mechanism; 201. Limiting sleeve; 202. Clip groove; 203. Slide groove; 3. Protective mechanism; 301. Clip shaft; 302. Guide inner cylinder; 303. Protective outer cylinder; 304. Telescopic spring. Detailed Implementation

[0022] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0023] like Figures 1-3 As shown, this embodiment provides a fire-resistant paintbrush protection structure, including a paintbrush body 1 and a heat-insulating shell 101 formed on the paintbrush body 1. A limiting mechanism 2 is provided on the outside of the heat-insulating shell 101, and a protective mechanism 3 is provided inside the limiting mechanism 2. The limiting mechanism 2 includes a limiting sleeve 201 that is detachably installed with the heat-insulating shell 101. The outer wall of the limiting sleeve 201 is symmetrically provided with mutually perpendicular sliding grooves 203 and locking grooves 202. The protective mechanism 3 includes a locking shaft 301 that is slidably installed with the sliding groove 203. A guide inner cylinder 302 is fixedly connected between the locking shafts 301, and a protective outer cylinder 303 is formed at the bottom of the guide inner cylinder 302.

[0024] In the above structure, the limiting sleeve 201 can be flexibly disassembled, allowing users to choose its preferred use.

[0025] The heat insulation shell 101 contains a heating core. One end of the heating core is surrounded by a heat-conducting pen tip 103, and the other end of the heating core is electrically connected to a power cord 102. The protective outer cylinder 303 can cover the entire heat-conducting pen tip 103, so that the heat-conducting pen tip 103 can be protected from all directions when it is dropped.

[0026] The limiting sleeve 201 is made of heat-insulating rubber. The depth of the locking groove 202 is 5mm and the length of the locking groove 202 is 12mm. This design is to lock the guide inner cylinder 302 and the protective outer cylinder 303 after the locking shaft 301 enters the locking groove 202. When encountering falling vibration, the shallow locking groove 202 can shake the locking shaft 301 out in time, thereby pushing out the protective outer cylinder 303, which can play a protective role in time and avoid further damage.

[0027] The length of the clamping shaft 301 is 3cm, and the guide inner cylinder 302 is limited to sliding against the outer wall of the heat insulation shell 101 and the inner wall of the limiting sleeve 201.

[0028] The protective outer cylinder 303 is made of retractable metal material with a hollow structure on the outside. When the protective outer cylinder 303 enters the limiting sleeve 201, the four corners at the bottom are opened. When it comes out, it tightens around the heat-conducting pen tip 103 to form protection.

[0029] A telescopic spring 304 is fixedly installed on the top of the guide inner cylinder 302. The outer peripheral wall of the telescopic spring 304 slides in contact with the inner wall of the limiting sleeve 201, and the top of the telescopic spring 304 is fixedly connected to the top of the limiting sleeve 201.

[0030] The working principle of this device is as follows: When this device is in use, the power cord 102 is connected to an external power source and an external control device. The power cord 102 powers the heating core inside the heat insulation shell 101, which in turn heats up the heat-conducting pen tip 103. The user then holds the limiting sleeve 201 and draws on its outer wall.

[0031] The specific clamping method is as follows: the two sets of clamping shafts 301 are perpendicular to the index and middle fingers. The index and middle fingers pull the clamping shafts 301 upwards from the front and back of the limiting sleeve 201 respectively, slide along the slide groove 203, and squeeze the internal telescopic spring 304 in the same way as holding a syringe. Depending on the needs of painting, the heat-conducting pen tip 103 can be fully exposed, or partially exposed, or the clamping shafts 301 can be inserted into the clamping grass to keep the heat-conducting pen tip 103 fully exposed, which is convenient for the user to paint.

[0032] When the partially leaking thermal pen tip 103 falls, the telescopic spring 304 is in the state of squeezing the inner guide cylinder 302, which can push out the protective outer cylinder 303 in time to protect the thermal pen tip 103 and prevent accidental damage to foreign objects.

[0033] When the thermal conductive pen tip 103 is completely leaked, it may fall if held by hand or placed on a table. Due to the small space of the locking cavity of the locking groove 202, the locking shaft 301 can be shaken out of the locking groove 202 in time, and then the protective outer cylinder 303 can be quickly pushed out to protect the thermal conductive pen tip 103.

[0034] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

Claims

1. A fire-resistant paintbrush protection structure, comprising a paintbrush body (1) and a heat-insulating outer shell (101) formed on the paintbrush body (1), characterized in that: The heat insulation shell (101) is provided with a limiting mechanism (2) on the outside, and a protective mechanism (3) is provided inside the limiting mechanism (2); The limiting mechanism (2) includes a limiting sleeve (201) that is detachably installed with the heat insulation shell (101). The outer wall of the limiting sleeve (201) is symmetrically provided with mutually perpendicular sliding grooves (203) and locking grooves (202). The protective mechanism (3) includes a locking shaft (301) that is slidably installed with the slide groove (203), and a guide inner cylinder (302) is fixedly connected between the locking shafts (301). A protective outer cylinder (303) is formed at the bottom of the guide inner cylinder (302).

2. The fire-resistant paintbrush protection structure according to claim 1, characterized in that: The heat insulation shell (101) contains a heating core, one end of which is surrounded by a heat-conducting pen tip (103), and the other end of which is electrically connected to a power cord (102).

3. The fire-resistant paintbrush protection structure according to claim 2, characterized in that: The limiting sleeve (201) is made of heat-insulating rubber, the depth of the locking groove (202) is 5mm, and the length of the locking groove (202) is 12mm.

4. The fire-resistant paintbrush protection structure according to claim 3, characterized in that: The length of the clamping shaft (301) is 3cm, and the guide inner cylinder (302) slides in a limited manner with the outer wall of the heat insulation shell (101) and the inner wall of the limiting sleeve (201).

5. The fire-resistant paintbrush protection structure according to claim 4, characterized in that: The protective outer cylinder (303) is made of retractable metal material and has a hollow structure on the outside.

6. The fire-resistant paintbrush protection structure according to claim 5, characterized in that: A telescopic spring (304) is fixedly installed on the top of the guide inner cylinder (302). The outer peripheral wall of the telescopic spring (304) slides in contact with the inner wall of the limiting sleeve (201). The top of the telescopic spring (304) is fixedly connected to the top of the inner wall of the limiting sleeve (201).

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