阅读说明：本技术 一种内涨式快速测气接头 (Internal expansion type quick gas measuring joint ) 是由 马彪 韩卫军 鞠少华 于 2021-03-03 设计创作，主要内容包括：一种内涨式快速测气接头,包括进气管和连接筒,进气管的外周具有一个凸环,凸环上方的进气管的外侧壁上设置有外螺纹,进气管在凸环的一侧套设有一个弹性套,连接筒上连接有手柄,连接筒内壁设置有内螺纹,连接筒的一端通过内螺纹和外螺纹连接在弹性套一侧的进气管上,连接筒的另一端通过内螺纹连接有一个气密性检测设备接头。本发明的一种内涨式快速测气接头可以广泛应用在新能源汽车的电池包、电机控制器、电机、DCDC、车载充电机的水道气密性检测的进气结构上,不受产品外观形状限制,依据弹性体的压缩量不同可以适用多种规格的水道接头的内径,兼容性好,灵活性较强。本接头的连接筒与进气管通过螺纹连接,简单可靠,体积小巧,连接方便。(The utility model provides an internal expanding formula quick gas detection connects, including intake pipe and connecting cylinder, the periphery of intake pipe has a bulge loop, be provided with the external screw thread on the lateral wall of the intake pipe of bulge loop top, the intake pipe is equipped with an elastic sleeve in one side cover of bulge loop, be connected with the handle on the connecting cylinder, the connecting cylinder inner wall is provided with the internal thread, internal thread and external screw thread connection are passed through to the one end of connecting cylinder in the intake pipe of elastic sleeve one side, the other end of connecting cylinder has a gas tightness check out test set to connect through female connection. The internal expansion type quick gas measuring connector can be widely applied to a gas inlet structure for detecting the gas tightness of a water channel of a battery pack, a motor controller, a motor, a DCDC and a vehicle-mounted charger of a new energy automobile, is not limited by the appearance shape of a product, can be suitable for the inner diameters of water channel connectors of various specifications according to different compression amounts of elastomers, and is good in compatibility and high in flexibility. The connecting cylinder of the joint is in threaded connection with the air inlet pipe, and the joint is simple, reliable, small in size and convenient to connect.)

1. The utility model provides an internal expanding formula surveys quick gas and connects which characterized in that: including intake pipe (4) and connecting cylinder (6), the periphery of intake pipe (4) has a bulge loop (5), be provided with external screw thread (8) on the lateral wall of intake pipe (4) of bulge loop (5) top, intake pipe (4) are equipped with one elastic sleeve (7) at the upside cover of bulge loop (5), be connected with handle (2) on connecting cylinder (6), connecting cylinder (6) inner wall is provided with internal thread (3), the one end of connecting cylinder (6) is passed through internal thread (3) and external screw thread (8) and is connected on intake pipe (4) of elastic sleeve (7) one side, the other end of connecting cylinder (6) is provided with internal thread (3) that are connected with gas tightness check out test set and connect (1).

2. The internal expanding quick gas measuring joint as claimed in claim 1, wherein: the handle (2) comprises a circular ring (21) and a connecting rod (23), and the circular ring (21) is connected to the connecting cylinder (6) through the connecting rod (23).

3. The internal expanding quick gas measuring joint as claimed in claim 1, wherein: at least two grooves (22) are arranged on the outer wall of the circular ring (21) at intervals.

4. The internal expanding quick gas measuring joint as claimed in claim 1, wherein: the elastic sleeve (7) is in interference fit with the air inlet pipe (4).

5. The internal expanding quick gas measuring joint as claimed in claim 1, wherein: the elastic sleeve (7) is made of rubber or elastic plastic.

Technical Field

The invention relates to the field of physics, in particular to an air tightness detection technology, and specifically relates to an internal expansion type quick air measurement connector.

Background

With the consumption of energy and the aggravation of greenhouse effect, low-carbon travel becomes new and fashionable in current travel; as a vehicle for low-carbon travel, a new energy automobile has been greatly developed in recent years, and a core component 3 of the new energy automobile is an electrical system: the battery pack, the motor controller and the motor are all cooled by a water cooling system; because the water cooling efficiency is high, a vehicle-mounted charger and DCDC of the new energy automobile are also used as water cooling systems; the products such as 3-electrical system, vehicle-mounted charger and DCDC all have own cooling water channels, and the water channels of the products need to be detected in an air tightness mode to ensure that the water channels of the products before loading are sealed and do not leak. In the prior art, the detection of the water channel of the battery pack, the motor controller, the motor, the vehicle-mounted charger and the DCDC is mainly realized by customizing detection equipment or tools, and because the products have the shape characteristics of the products, one customized water channel air inlet and blocking tool can only detect the water channel of one product, and cannot simultaneously and compatibly detect another product, so that a plurality of air inlet and blocking tools need to be customized, the manufacturing cost is greatly increased, the efficiency is reduced, the connection is inconvenient, and the quick connection cannot be realized.

Disclosure of Invention

The invention aims to provide an internal expansion type quick gas measuring connector, which aims to solve the technical problems of poor compatibility and inconvenient connection of the gas measuring connector in the prior art.

The invention provides an internal expansion type quick gas measurement connector which comprises a gas inlet pipe and a connecting cylinder, wherein a convex ring is arranged on the periphery of the gas inlet pipe, external threads are arranged on the outer side wall of the gas inlet pipe above the convex ring, an elastic sleeve is sleeved on the upper side of the convex ring of the gas inlet pipe, a handle is connected to the connecting cylinder, internal threads are arranged on the inner wall of the connecting cylinder, one end of the connecting cylinder is connected to the gas inlet pipe on one side of the elastic sleeve through the internal threads and the external threads, and internal threads connected with a gas tightness detection equipment connector are arranged at the other.

Further, the handle comprises a circular ring and a connecting rod, and the circular ring is connected to the connecting cylinder through the connecting rod.

Furthermore, the outer wall of the ring is provided with at least two grooves at intervals.

Further, the elastic sleeve is in interference fit with the air inlet pipe.

Further, the elastic sleeve is made of rubber or elastic plastic.

Compared with the prior art, the invention has positive and obvious effect. The internal expansion type quick gas measuring connector can be widely applied to a gas inlet structure for detecting the gas tightness of a water channel of a battery pack, a motor controller, a motor, a DCDC and a vehicle-mounted charger of a new energy automobile, is not limited by the appearance shape of a product, can be suitable for the inner diameters of water channel connectors of various specifications according to different compression amounts of the elastic sleeve, and is good in compatibility and high in flexibility. The connecting cylinder of the joint is in threaded connection with the air inlet pipe, and the joint is simple, reliable, small in size and convenient to connect.

Drawings

FIG. 1 is an exploded view of the present invention.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a schematic view of the usage state of the present invention.

Fig. 4 is a schematic cross-sectional view of a connector barrel and handle of the present invention.

Fig. 5 is a perspective view of the connecting cylinder and handle of the present invention.

Fig. 6 is a top view of the connector barrel and handle of the present invention.

Fig. 7 is a schematic sectional view of an intake pipe according to the present invention.

Detailed Description

The present invention will be further described with reference to the drawings and examples, but the present invention is not limited to the examples, and all similar structures and similar variations using the present invention shall fall within the scope of the present invention.

As shown in fig. 1 to 7, the internal expansion type quick gas measuring connector comprises a gas inlet pipe 4 and a connecting cylinder 6, wherein a convex ring 5 is arranged on the periphery of the gas inlet pipe 4, external threads 8 are arranged on the outer side wall of the gas inlet pipe 4 above the convex ring 5, an elastic sleeve 7 is sleeved on one side of the convex ring 5 of the gas inlet pipe 4, a handle 2 is connected to the connecting cylinder 6, internal threads 3 are arranged on the inner wall of the connecting cylinder 6, one end of the connecting cylinder 6 is connected to the gas inlet pipe 4 on one side of the elastic sleeve 7 through the internal threads 3 and the external threads 8, and the other end of the connecting cylinder 6 is connected with a gas tightness detecting equipment connector 1 through the.

Further, the handle 2 comprises a ring 21 and a connecting rod 23, and the ring 21 is connected to the connecting cylinder 6 through the connecting rod 23.

Further, at least two grooves 22 are arranged on the outer wall of the circular ring 21 at intervals.

Further, the elastic sleeve 7 is in interference fit with the air inlet pipe 4.

Further, the elastic sleeve 7 is made of rubber or elastic plastic.

The working process of the invention is as follows:

during the use, gas tightness check out test set connects 1 and gas tightness check out test set's trachea connection, stretch into intake pipe 4 in the one end that the water course of being surveyed the product connects 9, through 2 swivelling joint section of thick bamboo 6 of handle, connecting cylinder 6 compresses elastic sleeve 7, elastic sleeve 7 takes place deformation, make elastic sleeve 7 and be surveyed product water course joint 9 closely laminate, guarantee to seal, then let in gas can detect the water course of being surveyed the product through gas tightness check out test set from the other end that the water course connects, through 2 back extrusions of connecting cylinder 6 of handle after the test, can take out this joint, detect next time again.

The invention can be widely applied to the air inlet structure for detecting the air tightness of the water channel of a battery pack, a motor controller, a motor, a DCDC (direct current) and a vehicle-mounted charger of a new energy automobile, is not limited by the appearance shape of a product, can be suitable for the inner diameters of water channel joints 9 with various specifications according to different compression amounts of the elastic sleeve 7, and has good compatibility and stronger flexibility. The connecting cylinder 6 and the air inlet pipe 4 of the joint are connected through threads, and the joint is simple, reliable, small in size and convenient to operate. The groove 22 in the ring is used to facilitate rotation of the handle 2. The air tightness detection equipment joint 1 is only required to be a standard part, and the cost is low. The handle 2, the connecting cylinder 6, the handle 2 and the air inlet pipe 4 can be obtained by machining, the manufacturing process is mature, the cost is low, and the materials can be widely selected. The elastic sleeve 7 can be made of rubber or elastic plastic and can be obtained through a die, the manufacturing process is mature, the elastic sleeve is suitable for batch production, and the cost is low.

Specifically, the joint 1 of the air tightness detecting device, and the method for detecting air tightness by the air tightness detecting device in the present invention all adopt known schemes in the prior art, and are known to those skilled in the art, and are not described herein again.