CN217276701U

CN217276701U - Four-way valve air tightness testing device

Info

Publication number: CN217276701U
Application number: CN202221165217.4U
Authority: CN
Inventors: 于新凯
Original assignee: Weifang Changxing Machinery Co ltd
Current assignee: Weifang Changxing Machinery Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-08-23
Anticipated expiration: 2032-05-16

Abstract

The utility model discloses a cross valve gas tightness testing arrangement, the on-line screen storage device comprises a base, the last lateral wall fixedly connected with vacuum chamber of base, a plurality of stifled posts of lateral wall fixedly connected with of vacuum chamber, the last lateral wall of base slides and is equipped with the slide, the last lateral wall fixedly connected with curb plate of slide, the one end fixedly connected with side prop of vacuum chamber is kept away from to the last lateral wall of base, the outer wall fixedly connected with drive end and the curb plate outer wall fixedly connected with pneumatic cylinder of side prop, be equipped with the cross valve body between curb plate and the slide, the curb plate is close to one side lateral wall of cross valve body and has seted up flutedly, common fixedly connected with fixed column between the interior roof of recess and the interior bottom wall. The utility model discloses a splint can realize fixed to the centre gripping of cross valve body to the support of cross valve tightly, have avoided the cross valve body to take place to rock at the removal in-process, guarantee that four mouths of pipe of cross valve can align with the detection mouth fast, improve detection efficiency.

Description

Four-way valve air tightness testing device

Technical Field

The utility model relates to a cross valve gas tightness detects technical field, especially relates to a cross valve gas tightness testing arrangement.

Background

The four-way valve is a control valve with four pipe orifices. The four-way valve is an indispensable component in refrigeration equipment, and the working principle of the four-way valve is that when a solenoid valve coil is in a power-off state, a pilot slide valve moves left under the drive of a right compression spring, high-pressure gas enters a right piston cavity after entering a capillary tube, on the other hand, gas in the left piston cavity is discharged, and due to the fact that pressure difference exists between two ends of a piston, the piston and a main slide valve move left, an exhaust pipe is communicated with an outdoor machine connecting pipe, the other two connecting pipes are communicated, and a refrigeration cycle is formed. Whether the four-way valve has leakage (namely whether the four-way valve has good air tightness) or not is directly related to the performance of the four-way valve and even the quality of a refrigerating system. Therefore, the air tightness test of the four-way valve is very important in production and product delivery tests of enterprises.

The existing four-way valve air tightness testing device is not fixed to the four-way valve in a clamping mode when in use, and is easy to shake in a moving process, so that four pipe orifices of the four-way valve cannot be aligned with a detection port quickly, and the detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art, and the four-way valve gas tightness testing device who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a four-way valve air tightness testing device comprises a base, wherein a vacuum box is fixedly connected to the upper side wall of the base, a plurality of blocking columns are fixedly connected to the side wall of the vacuum box, a sliding seat is arranged on the upper side wall of the base in a sliding mode, a side plate is fixedly connected to the upper side wall of the sliding seat, one end, far away from the vacuum box, of the upper side wall of the base is fixedly connected with a side column, a driving end is fixedly connected with a hydraulic cylinder fixedly connected with the outer wall of the side plate, a four-way valve body is arranged between the side plate and the sliding seat, a groove is formed in one side wall, close to the four-way valve body, of the side plate, a fixed column is fixedly connected between the inner top wall and the inner bottom wall of the groove, a sliding block is sleeved on the outer wall of the fixed column in a sliding mode, a clamping plate which is arranged on the side wall of the side plate in a sliding mode is fixedly connected with a toothed bar, the upper side wall of the side plate is fixedly connected with a motor through a support, and the tail end of an output shaft of the motor is fixedly connected with a gear meshed with the rack.

Preferably, the outer wall of each plugging column is fixedly sleeved with a sealing ring.

Preferably, two push posts are fixedly connected to the upper side wall of the sliding seat.

Preferably, the upper side wall of the sliding seat and the lower side wall of the clamping plate are respectively provided with an arc-shaped groove.

Preferably, two guide rods which are slidably inserted into the side walls of the sliding seat are fixedly connected between the side columns and the vacuum box.

Preferably, the length of the clamping plate is larger than the distance from the axis of the four-way valve body to the side plate.

Preferably, the inner walls of the two arc-shaped grooves are fixedly connected with rubber pads.

Compared with the prior art, this cross valve gas tightness testing arrangement's advantage lies in:

1. the clamping plate is arranged, the starting motor can drive the clamping plate to move downwards axially through the meshing of the gear and the rack until the clamping plate is abutted against a pipe orifice above the four-way valve body, the four-way valve body is clamped and fixed, the workpiece is sealed, positioned and clamped, the four-way valve body is prevented from shaking in the moving process, the four pipe orifices of the four-way valve can be aligned with the detection ports quickly, and the detection efficiency is improved;

2. the four-way valve is characterized in that push columns are arranged, after detection is finished, the driving end of the hydraulic cylinder is retracted, and the four-way valve body can be pulled to move left through the two push columns, so that four pipe orifices of the four-way valve body are separated from a sealing ring blocking the outer wall of the column, and an operator can easily disassemble a workpiece;

3. the sealing ring can deform when the blocking column is tightly abutted against the outer wall of the pipe orifice of the four-way valve body, and is better attached to the inner wall of each pipe, so that the sealing effect of each pipe is better, and the testing precision is ensured;

to sum up, the utility model discloses a splint can realize fixed to the centre gripping of cross valve body to the support of cross valve tightly, have avoided the cross valve body to take place to rock at the removal in-process, guarantee four mouths of pipe of cross valve can with detect mouthful fast alignment, improve detection efficiency.

Drawings

Fig. 1 is a schematic structural view of a four-way valve air tightness testing device provided by the present invention;

fig. 2 is the utility model provides a cross valve gas tightness testing arrangement's part looks sideways at schematic structure diagram.

In the figure: the device comprises a base 1, a vacuum box 2, a column 3, a sliding seat 4, a four-way valve body 5, a side plate 6, a groove 7, a fixing column 8, a sliding block 9, a clamping plate 10, a toothed bar 11, a motor 12, a gear 13, a side column 14, a hydraulic cylinder 15, a sealing ring 16, a pushing column 17, an arc-shaped groove 18 and a guide rod 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a four-way valve airtightness testing device comprises a base 1, wherein a vacuum box 2 is fixedly connected to the upper side wall of the base 1, a control panel is arranged on the outer wall of the vacuum box 2, a plurality of blocking columns 3 are fixedly connected to the side wall of the vacuum box 2, the plurality of blocking columns 3 correspond to four pipe orifices of a four-way valve body 5, wherein the blocking column 3 at the top is in a hollow tubular shape, so as to realize the communication with the pumping and filling system outside the vacuum box 2 when the pipe orifice of the four-way valve body 5 is connected with the blocking column 3 at the top, thereby realizing the evacuation, inflation and deflation of the workpiece under the sealing condition for detection, the outer wall of each plugging column 3 is fixedly sleeved with a sealing ring 16, when the blocking column 3 is abutted against the outer wall of the pipe orifice of the four-way valve body 5, the sealing ring 16 can be deformed to better fit the inner wall of each pipe, so that the sealing effect of each pipe is better, and the testing precision is ensured.

The side wall slides and is equipped with slide 4 on base 1, two push posts 17 of side wall fixedly connected with on slide 4, after detecting the completion, withdraw the drive end of pneumatic cylinder 15, can drive slide 4 and move left, drive two push posts 17 and to the contact on cross valve body 5 right side, thereby can directly move left through two push posts 17 pulling cross valve body 5 when the drive end of pneumatic cylinder 15 returns, make four mouths of pipe of cross valve body 5 break away from the sealing washer 16 of stifled post 3 outer wall, make the operator dismantle the work piece easily, common fixedly connected with slides between jamb 14 and the vacuum chamber 2 and inserts two guide bars 19 of establishing at slide 4 lateral walls, the stability of slide 4 when sliding has been guaranteed.

Lateral plate 6 is fixedly connected with to the side wall of slide 4, vacuum chamber 2's one end fixedly connected with side column 14 is kept away from to the side wall of base 1, the outer wall fixedly connected with drive end and the 6 outer wall fixedly connected with pneumatic cylinder 15 of curb plate of side column 14, be equipped with cross valve body 5 between curb plate 6 and the slide 4, curb plate 6 is close to one side lateral wall of cross valve body 5 and has seted up recess 7, common fixedly connected with fixed column 8 between recess 7's interior roof and the interior bottom wall, the outer wall slip cover of fixed column 8 is equipped with slider 9, slide on the 8 outer walls of fixed column through slider 9, can guarantee the vertical axial displacement of splint 10.

The outer wall of the sliding block 9 is fixedly connected with a clamping plate 10 which is arranged on the side wall of the side plate 6 in a sliding way, the length of the clamping plate 10 is larger than the distance from the axis of the four-way valve body 5 to the side plate 6, can ensure that the lower side wall of the clamping plate 10 can be in direct contact with the linear part of the pipe orifice of the four-way valve body 5, ensure the clamping firmness of the clamping plate 10 to the four-way valve body 5, meanwhile, the pipe orifice of the four-way valve body 5 clamped by the clamping plate 10 can be ensured to be in a horizontal state, the upper side wall of the sliding seat 4 and the lower side wall of the clamping plate 10 are respectively provided with an arc-shaped groove 18, the two arc-shaped grooves 18 are respectively adapted to the appearance characteristics of the four-way valve body 5, so as to better clamp and fix the four-way valve body 5, the inner walls of the two arc-shaped grooves 18 are fixedly connected with rubber pads, can play the effect of protection to cross valve body 5 under the elastic action of rubber pad, avoid it to be pressed too big and cause the damage.

The upper side wall of the clamping plate 10 is fixedly connected with a toothed bar 11, the upper side wall of the side plate 6 is fixedly connected with a motor 12 through a support, the tail end of an output shaft of the motor 12 is fixedly connected with a gear 13 meshed with the toothed bar 11, when detection is carried out, the four-way valve body 5 is placed in an arc-shaped groove 18 on the sliding seat 4, then the motor 12 is started to drive the gear 13 to rotate clockwise, the toothed bar 11 meshed with the motor is utilized to drive the clamping plate 10 to move downwards axially until the clamping plate is abutted against a pipe orifice above the four-way valve body 5, clamping and fixing of the four-way valve body 5 are realized, then a hydraulic cylinder 15 is started to extend a driving end of the hydraulic cylinder to drive the sliding seat 4 and the side plate 6 to move rightwards synchronously until four pipe orifices of the four-way valve body 5 are driven to be sleeved on outer walls corresponding to the blocking columns 3 and attached to sealing rings 16, sealing, positioning and clamping of a workpiece are completed, and the four-way valve body 5 is prevented from shaking in the moving process, four pipe orifices of the four-way valve can be aligned with the detection port quickly, and detection efficiency is improved. And the air tightness of the four-way valve body 5 is detected by a control panel on the outer wall of the vacuum box 2, the detection technology of the air tightness is the prior art familiar to the technical personnel in the field, after the detection is finished, the motor 12 rotates reversely to drive the gear 13 to rotate anticlockwise, and the rack 11 is used for driving the clamping plate 10 to move upwards to be separated from the four-way valve body 5 so as to remove the clamping fixation of the four-way valve body 5.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A four-way valve airtightness testing device comprises a base (1) and is characterized in that a vacuum box (2) is fixedly connected to the upper side wall of the base (1), a plurality of blocking columns (3) are fixedly connected to the side wall of the vacuum box (2), a sliding seat (4) is arranged on the upper side wall of the base (1) in a sliding mode, a side plate (6) is fixedly connected to the upper side wall of the sliding seat (4), a side column (14) is fixedly connected to one end, far away from the vacuum box (2), of the upper side wall of the base (1), a driving end is fixedly connected to the outer wall of the side column (14), a hydraulic cylinder (15) is fixedly connected to the outer wall of the side plate (6), a four-way valve body (5) is arranged between the side plate (6) and the sliding seat (4), a groove (7) is formed in the side wall, close to the four-way valve body (5), and a fixing column (8) is fixedly connected between the inner top wall and the inner bottom wall of the groove (7), the outer wall of the fixed column (8) is slidably sleeved with a sliding block (9), the outer wall of the sliding block (9) is fixedly connected with a clamping plate (10) which is slidably arranged on the side wall of the side plate (6), the upper side wall of the clamping plate (10) is fixedly connected with a toothed bar (11), the upper side wall of the side plate (6) is fixedly connected with a motor (12) through a support, and the tail end of an output shaft of the motor (12) is fixedly connected with a gear (13) which is meshed with the toothed bar (11).

2. The four-way valve airtightness testing apparatus according to claim 1, wherein a sealing ring (16) is fixedly sleeved on the outer wall of each of the blocking columns (3).

3. The four-way valve airtightness testing apparatus according to claim 1, wherein two push posts (17) are fixedly connected to the upper side wall of the sliding base (4).

4. The four-way valve airtightness testing apparatus according to claim 1, wherein the upper side wall of the sliding base (4) and the lower side wall of the clamping plate (10) are respectively provided with an arc-shaped groove (18).

5. The four-way valve airtightness testing apparatus according to claim 1, wherein two guide rods (19) slidably inserted into the side walls of the sliding base (4) are fixedly connected between the side posts (14) and the vacuum box (2).

6. The four-way valve airtightness testing apparatus according to claim 1, wherein the length of the clamp plate (10) is greater than the distance from the axial center of the four-way valve body (5) to the side plate (6).

7. The four-way valve airtightness testing apparatus according to claim 4, wherein rubber pads are fixedly connected to inner walls of both of the arc-shaped grooves (18).