Heating explosion-proof EP pipe
By designing a snap-fit structure and a raised ring in the EP tube, the problem of the tube cap breaking off during heating is solved, achieving an explosion-proof effect without the need for explosion-proof clamps, reducing costs and simplifying equipment requirements.
Patent Information
- Application Number
- CN202520188192.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-06
AI Technical Summary
The cap of the existing EP tube is prone to popping off during heating, which can lead to sample contamination or spillage. In addition, the explosion-proof clamp deforms and slips off at high temperatures, making it unable to effectively secure the cap.
A heating explosion-proof EP pipe was designed, which adopts a snap-fit structure for the pipe body and the pipe cap. The pipe is sealed by using a snap-fit plate and a snap-fit groove in conjunction with a baffle and inner and outer protruding rings to prevent the pipe cap from bursting open during heating.
The heating process eliminates the need for explosion-proof clamps, effectively preventing the cap from bursting, reducing sample contamination, lowering production costs, and simplifying equipment requirements.
Smart Images

Figure CN223832355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of EP tube technology, and in particular to a heating explosion-proof EP tube. Background Technology
[0002] EP tubes are experimental consumables, commonly used tools for sample processing and storage. In molecular biology experiments, high-temperature sample handling is frequently involved (such as the heating and denaturation techniques in Western blot and the sol-gel techniques in nucleic acid electrophoresis). Currently, the cap and tube body of EP tubes are directly sealed by pressing. During heating, the gas inside the tube expands, increasing the internal pressure and causing the cap to burst open, leading to problems such as moisture evaporation, sample contamination, or spillage.
[0003] Experimental samples typically have a long preparation cycle and a small quantity, so sample contamination can cause significant losses to the experiment. Currently, explosion-proof clips are commonly used in laboratories to prevent the caps of EP tubes from bursting open during heating. However, in practical applications, it has been found that explosion-proof clips, which are generally made of plastic, can deform due to high temperatures after prolonged use, causing them to fail to properly hold the caps and resulting in the clips slipping off.
[0004] To address these issues, a laboratory-grade explosion-proof EP tube for heating was designed. Utility Model Content
[0005] The purpose of this invention is to provide a heating explosion-proof EP tube that can prevent the cap from bursting open during the heating process without the need for explosion-proof clamps.
[0006] To achieve the above objectives, the present invention provides the following technical solution.
[0007] An explosion-proof EP heating tube includes a tube body and a tube cap. The upper end of the tube body is a top ring, and both sides of the top ring are provided with retaining plates. Both ends of the tube cap are provided with retaining grooves that cooperate with and engage with the top ring at the upper end of the tube body. One side of the retaining groove is provided with a baffle. The inner wall of the tube body is provided with a first protruding ring. The tube cap is provided with a hollow cylinder. The outer side of the hollow cylinder is provided with a second protruding ring that cooperates with and seals against the first protruding ring on the inner wall of the tube body.
[0008] Preferably, the tube body, top ring, and clamping plate are an integral structure.
[0009] Preferably, the card plate has a rectangular structure with rounded corners on the outside and its inner side connected to the tube body and the top ring.
[0010] Preferably, the hollow cylinder is positioned below the tube cap.
[0011] The tube body, top ring, clamping plate, and first raised ring are all integrated structures, as are the tube cap, hollow cylinder, second raised ring, clamping groove, and baffle.
[0012] After the sample is added, this utility model, compared with the existing EP tube, not only meets the daily use function of the EP tube, but also avoids the situation where the commonly used explosion-proof clamp is deformed due to high temperature, cannot properly hold the tube cap, and the explosion-proof clamp slips off. Attached Figure Description
[0013] Figure 1 This is a front view structural diagram of the present invention.
[0014] Figure 2 This is a top view of the tube body structure of this utility model.
[0015] Figure 3 This is a schematic diagram of the internal structure of this utility model.
[0016] Figure 4 This is a schematic diagram of the cap structure of this utility model. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-4 This embodiment provides a heating explosion-proof EP pipe, including a pipe body 1 and a pipe cap 3. The upper end of the pipe body 1 is a top ring 2, and the top ring 2 is provided with a retaining plate 201 on both sides.
[0019] Both ends of the cap 3 are provided with slots 302 that engage with the top ring 2 at the upper end of the tube body 1. One side of the slot 302 is provided with a baffle 303.
[0020] The inner wall of the tube body 1 is provided with a first protruding ring 101;
[0021] The cap 3 is provided with a hollow cylinder 304, and the outer side of the hollow cylinder 304 is provided with a second protruding ring 301 that cooperates with and seals against the first protruding ring 101 on the inner wall of the tube body 1.
[0022] Furthermore, the tube body 1, the top ring 2, and the clamping plate 201 are an integral structure.
[0023] Furthermore, the card plate 201 has a rectangular structure with rounded corners on the outside and is connected to the tube body 1 and the top ring 2 on the inside.
[0024] Furthermore, the hollow cylinder 304 is disposed below the center of the cap 3.
[0025] The specific working principle of this device is as follows.
[0026] When using this EP tube, the sample is added from the top of the tube body 1, and then the tube cap 3 is placed on the tube body 1. The second protruding ring 301 on the hollow cylinder 304 of the tube cap 3 is pressed into the first protruding ring 101 on the inner wall of the tube body, thereby sealing the internal environment of the tube body 1. Then, the tube cap 3 is rotated to screw the retaining plate 201 on the tube body 1 into the corresponding retaining grooves 302 on both sides of the tube cap 3, and into contact with the baffle 303 provided in the retaining groove 302. The baffle 303 is set in the opposite direction of the rotation direction of the tube cap 3, so that the retaining plate 201 is completely inserted into the retaining groove 302. The baffle 303 on the retaining groove 302 can prevent the retaining plate 201 from being screwed out of the retaining groove 302 due to excessive rotation, locking the tube body 1 and the tube cap 3 to the maximum extent, ensuring that the tube cap 3 will not burst open due to the increase of gas pressure inside the tube body 1 during the heating process.
[0027] The heating explosion-proof EP tube of this utility model is a disposable consumable. The convenient heating explosion-proof design of this utility model greatly reduces the production cost while ensuring the explosion-proof function, which is conducive to its widespread use and reduces the types of equipment that need to be purchased for experiments.
[0028] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered as falling within the patent protection scope defined by the submitted claims.
Claims
1. A heating explosion-proof EP pipe, comprising a pipe body (1) and a pipe cap (3), characterized in that: The upper end of the tube body (1) is a top ring (2), and both sides of the top ring (2) are provided with a clamping plate (201); Both ends of the cap (3) are provided with slots (302) that engage with the top ring (2) at the upper end of the tube body (1), and one side of the slot (302) is provided with a baffle (303). The inner wall of the tube (1) is provided with a first protruding ring (101). The cap (3) is provided with a hollow cylinder (304), and a second protruding ring (301) is provided on the outside of the hollow cylinder (304) to cooperate with and seal the first protruding ring (101) on the inner wall of the tube body (1).
2. The explosion-proof EP tube for heating according to claim 1, characterized in that: The tube body (1), top ring (2) and clamping plate (201) are an integral structure.
3. The explosion-proof EP tube for heating according to claim 2, characterized in that: The card plate (201) is a rectangular structure with rounded corners on the outside and connected to the tube body (1) and the top ring (2) on the inside.
4. The explosion-proof EP tube for heating according to claim 3, characterized in that: The hollow cylinder (304) is located at the center below the cap (3).
5. The explosion-proof EP tube for heating according to claim 4, characterized in that: The cap (3), hollow cylinder (304), second protruding ring (301), slot (302) and baffle (303) are an integral structure.