Water nozzle rapid plugging tool structure

Abstract

The utility model provides a water nozzle quick plugging frock structure relates to new energy electric drive system cooling waterway airtightness detection technical field for solving the technical problem of high frock cost and low efficiency of new energy electric drive system cooling waterway airtightness detection in prior art, the water nozzle quick plugging frock structure, the front section cylindrical surface of support inner cover has a plurality of steel ball limiting hole, the middle section is provided with spring damping groove, the inner hole of tail section is threaded hole, the inside of limiting outer cover has inclined plane steel ball groove and spring damping shoulder, the locking steel ball is pressed into the steel ball limiting hole of support inner cover, the damping spring is installed in the spring damping groove of support inner cover, the limiting outer cover is covered on support inner cover, so that the spring damping shoulder is stuck in the front end of damping spring, and the rubber pad is pressed into the front end inner hole of support inner cover, and makes the rubber pad pressure package in place.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology for cooling water channels in new energy electric drive systems, and in particular to a quick-sealing fixture structure for water nozzles. Background Technology

[0002] Currently, cooling channels are a necessary structure for ensuring the stable operation of the drive system in liquid-cooled new energy electric drive systems. Their airtightness directly affects the cooling performance and safe operation performance of the entire system. During the production stage, strict testing and control of their airtightness are required. However, due to the structural limitations of the water nozzles and channels, the tooling cost for airtightness testing is high, and the actual testing efficiency is low.

[0003] Specifically, water taps are usually sealed using internal expansion and ring-type quick sealing methods. However, both internal expansion and ring-type sealing methods have relatively complex structures and relatively high manufacturing and procurement costs. In actual airtightness testing, their efficiency is relatively low when used in conjunction with an airtightness tester. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-sealing fixture structure for water nozzles. It utilizes the elasticity of springs and the good rolling characteristics of steel balls, combined with the elastic deformation performance of sealing rubber gaskets, to achieve quick sealing and air filling of water nozzles. At the same time, it solves the technical problems of high cost and low efficiency of existing fixtures for air tightness testing of cooling water channels in new energy electric drive systems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quick-sealing fixture structure for a water tap includes: a support inner sleeve, a damping spring, a limiting outer sleeve, a rubber pad, and a locking steel ball; The front cylindrical surface of the inner support sleeve has multiple steel ball limiting holes, the middle section is provided with a spring damping groove, and the inner hole of the tail section is a threaded hole; the interior of the outer limiting sleeve has an inclined steel ball groove and a spring damping shoulder. The locking steel ball is pressed into the steel ball limiting hole of the supporting inner sleeve, and the damping spring is installed in the spring damping groove of the supporting inner sleeve; the limiting outer sleeve is fitted onto the supporting inner sleeve so that the spring damping shoulder is locked at the front end of the damping spring, and the rubber pad is pressed into the front inner hole of the supporting inner sleeve and the rubber pad is pressed into place.

[0006] In practical applications, the limiting sleeve is pulled backward to compress the damping spring and allow the locking steel ball to roll freely. With the help of the inclined surface at the front end of the nozzle to be sealed and the inclined steel ball groove at the front end of the limiting sleeve, the locking steel ball rolls into the inclined steel ball groove and the nozzle to be sealed is fitted into the reserved interface of the supporting inner sleeve.

[0007] Specifically, by loosening the limiting sleeve, under the elastic force of the damping spring, and with the help of the inclined structure of the inclined steel ball groove, the locking steel ball is pressed into the steel ball limiting hole of the supporting inner sleeve, so as to achieve the locking and sealing of the water nozzle to be sealed.

[0008] Specifically, the threaded hole at the tail end of the supporting inner sleeve can be used to achieve inflation or sealing, and to complete the airtightness test.

[0009] Compared with existing technologies, the quick-sealing fixture structure for water taps described in this utility model has the following advantages: The quick-sealing fixture structure provided by this utility model consists of an inner sleeve, an outer sleeve, a damping spring, steel balls, and a rubber pad, forming a simple quick-sealing fixture. By compressing and releasing the damping spring between the inner sleeve and the outer sleeve, relative sliding occurs between them. The inclined structure of the inner hole of the outer sleeve and the good rolling performance of the steel balls cause the steel balls to be displaced within the pre-reserved steel ball hole in the inner sleeve, thereby achieving rapid clamping and release of the sealing fixture. Attached Figure Description

[0010] Figure 1 A schematic diagram of the structure of the quick-sealing fixture for water taps provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the supporting inner sleeve in the quick-sealing fixture structure for water taps provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the limiting sleeve in the quick-sealing fixture structure for water taps provided in this embodiment of the utility model.

[0011] Figure label: 1-Inner support sleeve; 2-Damping spring; 3-Limiting outer sleeve; 4-Rubber pad; 5-Locking steel ball; 6-Water nozzle to be sealed; 11-Threaded hole; 12-Spring damping groove; 13-Steel ball limiting hole; 31- Inclined steel ball groove; 32- Spring damping shoulder. Detailed Implementation

[0012] For ease of understanding, the quick-sealing fixture structure for water taps provided in the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0013] This utility model embodiment provides a quick-sealing fixture structure for water taps, such as... Figures 1-3 As shown, it includes: inner support sleeve 1, damping spring 2, limiting sleeve 3, rubber pad 4, and locking steel ball 5; The front cylindrical surface of the inner support sleeve 1 has multiple steel ball limiting holes 13, the middle section is provided with a spring damping groove 12, and the inner hole of the tail section is a threaded hole 11; the inner surface of the outer limiting sleeve 3 has an inclined steel ball groove 31 and a spring damping shoulder 32. The locking steel ball 5 is pressed into the steel ball limiting hole 13 of the inner support sleeve 1, and the damping spring 2 is installed into the spring damping groove 12 of the inner support sleeve 1; the limiting outer sleeve 3 is fitted onto the inner support sleeve 1 so that the spring damping shoulder 32 is locked at the front end of the damping spring 2, and the rubber pad 4 is pressed into the front end inner hole of the inner support sleeve 1, and the rubber pad 4 is pressed into place.

[0014] Compared with the prior art, the quick-sealing fixture structure for water taps described in this embodiment of the invention has the following advantages: The quick-sealing fixture structure for water taps provided in this embodiment of the utility model consists of a supporting inner sleeve 1, a limiting outer sleeve 3, a damping spring 2, a locking steel ball 5, and a rubber pad 4, forming a simple quick-sealing fixture. By compressing and releasing the damping spring 2 between the supporting inner sleeve 1 and the limiting outer sleeve 3, relative sliding occurs between the supporting inner sleeve 1 and the limiting outer sleeve 3. The inclined steel ball groove 31 in the inner hole of the limiting outer sleeve 3 and the good rolling performance of the locking steel ball 5 cause the locking steel ball 5 to be displaced within the steel ball limiting hole 13 reserved in the supporting inner sleeve 1, thereby realizing the quick clamping and release of the sealing fixture.

[0015] In practical applications, such as Figures 1-3 As shown, the aforementioned limiting sleeve 3 is pulled backward to compress the damping spring 2 and allow the locking steel ball 5 to roll freely. With the help of the inclined surface at the front end of the water nozzle 6 to be sealed and the inclined steel ball groove 31 at the front end of the limiting sleeve 3, the locking steel ball 5 rolls into the inclined steel ball groove 31 and the water nozzle 6 to be sealed is fitted into the reserved interface of the supporting inner sleeve 1.

[0016] Among them, such as Figures 1-3 As shown, when the limiting sleeve 3 is released, under the elastic force of the damping spring 2, the locking steel ball 5 is pressed into the steel ball limiting hole 13 of the supporting inner sleeve 1 by means of the inclined structure of the inclined steel ball groove 31, so as to achieve the locking and sealing of the water nozzle 6 to be sealed.

[0017] Specifically, such as Figures 1-3 As shown, the threaded hole 11 at the end of the inner sleeve 1 can be used to inflate or seal the air and complete the airtightness test.

[0018] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A quick-sealing fixture structure for water taps, characterized in that, include: Support inner sleeve, damping spring, limit outer sleeve, rubber pad, and locking steel ball; The front cylindrical surface of the inner support sleeve has multiple steel ball limiting holes, the middle section is provided with a spring damping groove, and the inner hole of the tail section is a threaded hole; the interior of the outer limiting sleeve has an inclined steel ball groove and a spring damping shoulder. The locking steel ball is pressed into the steel ball limiting hole of the supporting inner sleeve, and the damping spring is installed in the spring damping groove of the supporting inner sleeve; the limiting outer sleeve is fitted onto the supporting inner sleeve so that the spring damping shoulder is locked at the front end of the damping spring, and the rubber pad is pressed into the front inner hole of the supporting inner sleeve and the rubber pad is pressed into place.

2. The quick-sealing fixture structure for water taps according to claim 1, characterized in that, The limiting sleeve is pulled backward to compress the damping spring and allow the locking steel ball to roll freely. With the help of the inclined surface at the front end of the nozzle to be sealed and the inclined steel ball groove at the front end of the limiting sleeve, the locking steel ball rolls into the inclined steel ball groove and the nozzle to be sealed is fitted into the reserved interface of the supporting inner sleeve.

3. The quick-sealing fixture structure for water taps according to claim 2, characterized in that, Loosen the limiting sleeve, and under the elastic force of the damping spring, the locking steel ball is pressed into the steel ball limiting hole of the supporting inner sleeve by means of the inclined structure of the inclined steel ball groove, so as to achieve the locking and sealing of the water nozzle to be sealed.

4. The quick-sealing fixture structure for water taps according to claim 3, characterized in that, The threaded hole at the end of the supporting inner sleeve can be used to inflate or seal the air and complete the airtightness test.

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