Fixing clamp for helium detection of gas path one-way valve

Abstract

The utility model discloses a stationary fixture for helium detection of a gas path one-way valve, which effectively facilitates the fixation of the one-way valve during helium detection and comprises a clamping block and a fixing block, the clamping block and the fixing block are respectively positioned on the upper side and the lower side of the one-way valve and are respectively provided with a fixing hole, and the clamping block and the fixing block are respectively provided with a fixing hole. The one-way valve connecting device is novel in structure, ingenious in conception and easy and convenient to operate, leakproofness of connection between the one-way valve connecting device and a one-way valve is effectively improved, the one-way valve can be conveniently connected, and the one-way valve connecting device is convenient to use and high in practicability. And the operation of workers is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to one -way valve helium detection technical field relates to a kind of fixed clamp for gas path one-way valve helium detection. BACKGROUND

[0002] Helium detection is a kind of high sensitivity leak detection technology, widely used in industry, scientific research, aerospace and other fields, mainly used to detect whether equipment, pipeline, container and other small leaks exist.

[0003] After one-way valve production, its airtightness needs to be detected by helium detector to detect its performance, but since the interface of helium detector is different, most of them are not adapted to the communication port of one-way valve, so it is necessary to have a kind of fixed clamp that can adapt to one-way valve for helium detection. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model provides a kind of fixed clamp for gas path one-way valve helium detection, which solves the problems in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of fixed clamp for gas path one-way valve helium detection, including clamping block and fixed block, the clamping block and fixed block are located at the upper and lower sides of one-way valve respectively, fixed hole is formed in the clamping block and fixed block, the rear side of the fixed block is provided with detachable first connecting piece, the rear side of first connecting piece is detachably connected with second connecting piece for connecting with helium detector.

[0007] Preferably, the upper side of the fixed block is provided with a clearance slot, and a first sealing ring is detachably connected inside the clearance slot.

[0008] Preferably, the number of fixed holes is four, and the four fixed holes are arranged in a rectangular shape.

[0009] Preferably, a first communication hole is formed in the middle of the clamping block, a second communication hole is formed in the inside of the fixed block, and the second communication hole is coaxially arranged with the first communication hole.

[0010] Preferably, the rear side of the fixed block is fixedly connected with a first threaded rod, and the front side of the first connecting piece is threadedly connected with the first threaded rod.

[0011] Preferably, a sealing groove is formed in the front end face of the first connecting piece, and a first sealing ring is arranged inside the sealing groove.

[0012] Preferably, the rear side of the first connecting piece is fixedly connected with a second threaded rod, the front side of the second connecting piece is threadedly connected with the first threaded rod, and a second sealing ring is arranged inside the second connecting piece.

[0013] Preferably, the rear side of the second connecting piece is fixedly connected with a connecting disc, and the rear side of the connecting disc is fixedly connected with a third sealing ring.

[0014] Preferably, the connecting disc is conical in cross section.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model has fixed blocks and clamping blocks, can connect the upper and lower sides of the check valve, enables the device to clamp and fix the check valve without damaging the check valve, and guarantees the gas connectivity during check valve detection.

[0017] 2. The utility model has first sealing rings and second sealing rings, can guarantee the air tightness during device detection when the check valve is detected. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the whole structure schematic diagram of the utility model.

[0019] Fig. 2 It is the explosion structure schematic diagram of the fixed hole and the first connecting piece in the utility model.

[0020] In the drawing: 1, clamping block;2, fixed block;3, fixed hole;4, first connecting piece;5, second connecting piece;6, let go of slot;7, first sealing ring;8, first communication hole;9, second communication hole;10, first threaded rod;11, sealing groove;12, first sealing ring;13, second threaded rod;14, second sealing ring;15, connecting disc;16, third sealing ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] The drawings in the embodiments of the utility model will be described below. Figs. 1-2 The specific implementation manner of the utility model will be further described in detail.

[0023] The utility model has the advantages of Figs. 1-2As shown, the utility model of clamping block 1 and fixed block 2, in order to facilitate in one-way valve helium detection and fix, clamping block 1 and fixed block 2 are located at the upper and lower sides of one-way valve respectively, and fixed hole 3 is formed on clamping block 1 and fixed block 2, and a detachable first connecting piece 4 is arranged on the rear side of fixed block 2, and a second connecting piece 5 for connecting with helium detector is detachably connected to the rear side of first connecting piece 4.

[0024] It should be noted that the one-way valve applicable to the present application is a plate type stainless steel one-way valve, such as a liquid control one-way valve with model number A1Y-HB10B, which has a liquid passage formed in the middle, which will not be described too much here; clamping block 1 is made of plastic material, and its hardness is less than that of the valve body of the one-way valve, so it will not damage the valve body, and the side of fixed block 2 close to the one-way valve is polished to tightly fit the one-way valve;

[0025] In use, clamping block 1 and fixed block 2 can be placed on the upper and lower sides of the one-way valve to be tested, and then the bolts and nuts are tightened after passing through the fixed holes 3, thereby completing the assembly of clamping block 1, fixed block 2 and the one-way valve, and then the first connecting piece 4 is connected to the rear side of fixed block 2, and the second connecting piece 5 is connected to the rear side of first connecting piece 4, so that the second connecting piece 5 can be matched with the helium detection tester to detect the one-way valve.

[0026] Further, as shown in the drawings, Figs. 1-2 In order to increase the sealing performance of the device when connected to the one-way valve, a let-in groove 6 is formed on the upper side of fixed block 2, and a first sealing ring 7 is detachably connected inside the let-in groove 6.

[0027] It should be noted that the first sealing ring 7 is made of rubber material, and the thickness of the first sealing ring 7 is greater than the depth of the let-in groove 6, so that when clamping block 1 and fixed block 2 are matched with the one-way valve, the first sealing ring 7 will be clamped and the let-in groove 6 will be sealed.

[0028] Further, as shown in the drawings, Figs. 1-2 In order to increase the tightness of the device when connected to the one-way valve, the number of fixed holes 3 is four, and the four fixed holes 3 are arranged in a rectangular shape.

[0029] Further, as shown in the drawings, Figs. 1-2 In order to facilitate the connection of the one-way valve, a first communication hole 8 is formed in the middle of clamping block 1, and a second communication hole 9 is formed in the inside of fixed block 2, and the second communication hole 9 is coaxially arranged with the first communication hole 8.

[0030] In use, the positions of the first fixed hole 3 and the second fixed hole 3 correspond to the position of the liquid passage of the one-way valve, and the first communication hole 8 and the second communication hole 9 do not hinder the gas flow path inside the one-way valve during helium detection, thereby improving the detection accuracy.

[0031] It needs to be further pointed out that the second communication hole 9 is L-shaped, the upper end of the second communication hole 9 is located at the upper end face of the fixed block 2, the rear end of the second communication hole 9 is located at the rear end of the fixed block 2, and the rear end of the second communication hole 9 is communicated with the first connecting piece 4

[0032] Further, as shown in Figs. 1-2 In order to facilitate the operation of the staff, the rear side of the fixed block 2 is fixedly connected with a first threaded rod 10, and the front side of the first connecting piece 4 is threadedly connected with the first threaded rod 10.

[0033] It needs to be pointed out that the middle part of the first threaded rod 10 is provided with a third communication hole, and the front and rear sides of the third communication hole are communicated with the second communication hole 9 and the second connecting piece 5 respectively, and the front side of the first connecting piece 4 is sleeve-shaped and is threadedly connected with the first threaded rod 10.

[0034] Further, as shown in Figs. 1-2 In order to realize better sealing performance, the front end face of the first connecting piece 4 is provided with a sealing groove 11, and the inside of the sealing groove 11 is provided with a first sealing ring 12.

[0035] It needs to be pointed out that the first sealing ring 12 is made of rubber material and can produce elastic deformation, so as to block the gap between the first connecting piece 4 and the first threaded rod 10 when they are matched, thereby ensuring the air tightness of the connection.

[0036] Further, as shown in Figs. 1-2 In order to facilitate the operation of the staff, the rear side of the first connecting piece 4 is fixedly connected with a second threaded rod 13, the front side of the second connecting piece 5 is threadedly connected with the first threaded rod 10, and the inside of the second connecting piece 5 is provided with a second sealing ring 14.

[0037] It needs to be pointed out that the inside of the second threaded rod 13 is provided with a fourth communication hole, the front side of the fourth communication hole is communicated with the third communication hole, and the second sealing ring 14 is made of rubber material and can produce elastic deformation, which is used for sealing between the first connecting piece 4 and the second connecting piece 5.

[0038] Further, as shown in Figs. 1-2 In order to facilitate the fixing of the device on the helium detector, the rear side of the second connecting piece 5 is fixedly connected with a connecting disc 15, the rear side of the connecting disc 15 is fixedly connected with a third sealing ring 16, the cross section of the connecting disc 15 is tapered, that is, the middle part of the connecting disc 15 is thicker, the edge is thinner, and the side away from the second connecting piece 5 of the connecting disc 15 is a plane and can be closely combined with the helium detector.

[0039] It needs to be explained that the connecting disc 15 and the helium detector are connected through flange connection or groove clamp connection, through the design of the taper section, the connection can be more closely, further, the fourth sealing ring is arranged between the connecting disc 15 and the helium detector, so that the sealing during detection is more closely.

[0040] It needs to be further explained that through the double connection of the first connecting piece 4 and the second connecting piece 5, the device can be adapted to different connection interfaces of the helium detector, and the first connecting piece 4 can be used alone to connect with the helium detector when needed, which is convenient for the operator to operate.

[0041] When the utility model is used, first, the clamping block 1 and the fixed block 2 can be respectively arranged on the upper and lower sides of the one-way valve to be tested, then the bolt and the nut are screwed through the fixing hole 3, the assembly of the clamping block 1, the fixed block 2 and the one-way valve is completed, then the first connecting piece 4 is connected to the rear side of the fixed block 2, and the second connecting piece 5 is connected to the rear side of the first connecting piece 4, so that the second connecting piece 5 can be matched with the helium detection tester to detect the one-way valve.

[0042] The utility model has novel structure, clever idea, simple and convenient operation, effectively facilitates the fixing during the helium detection of the one-way valve, increases the airtightness of the device and the one-way valve connection, facilitates the connection of the one-way valve, and facilitates the operator operation.

[0043] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A kind of air path one-way valve helium detection fixed clamp, including clamping block and fixed block, it is characterized in that: The clamping block and the fixed block are respectively located on the upper and lower sides of the one-way valve, the clamping block and the fixed block are both provided with fixing holes, the rear side of the fixed block is provided with a detachable first connecting piece, and the rear side of the first connecting piece is detachably connected with a second connecting piece used for being connected with a helium detector.

2. The fixed clamp for helium leak detection of a one-way valve of an air path according to claim 1, characterized in that: The upper side of the fixed block is provided with a let-out groove, and the inside of the let-out groove is detachably connected with a first sealing ring.

3. The fixed clamp for helium leak detection of a one-way valve of an air path according to claim 1, characterized in that: The number of the fixing holes is four, and the four fixing holes are arranged in a rectangular shape.

4. The fixed clamp for helium leak detection of a one-way valve of an air path according to claim 1, characterized in that: The middle part of the clamping block is provided with a first communication hole, and the inside of the fixed block is provided with a second communication hole, which is coaxially arranged with the first communication hole.

5. The fixed clamp for helium leak detection of a one-way valve of an air path according to claim 1, characterized in that: The rear side of the fixed block is fixedly connected with a first threaded rod, and the front side of the first connecting piece is threadedly connected with the first threaded rod.

6. The fixed clamp for helium leak detection of a one-way valve of an air path according to claim 1, characterized by: The front end face of the first connecting piece is provided with a sealing groove, and the inside of the sealing groove is provided with a first sealing ring.

7. The fixed clamp for helium leak detection of a one-way valve of an air path according to claim 5, characterized by: The rear side of the first connecting piece is fixedly connected with a second threaded rod, the front side of the second connecting piece is threadedly connected with the first threaded rod, and the inside of the second connecting piece is provided with a second sealing ring.

8. The fixed clamp for helium leak detection of a one-way valve of an air path according to claim 1, characterized by: The rear side of the second connecting piece is fixedly connected with a connecting disc, and the rear side of the connecting disc is fixedly connected with a third sealing ring.

9. The fixed clamp for helium leak detection of a one-way valve of an air path according to claim 8, characterized by: The cross section of the connecting disc is in a conical shape.

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