Water cooler for air tightness detection

Abstract

The utility model relates to the technical field of cooling-water machines, and discloses a cooling-water machine for air tightness detection, which comprises a cooling-water machine body, two first pipelines, two first electromagnetic valves, a detection mechanism, a second pipeline and a second electromagnetic valve, the cooling-water machine body comprises a box body, two sliding doors, two vertical plates, four fixing plates, four sliding plates and a cross plate, a lead screw is rotatably arranged in the middle of the front side of the upper end face of the box body in a penetrating mode, the lower side of the outer end face of the lead screw is sleeved with a mouth-shaped plate in a threaded mode, rotating plates are rotatably arranged in the middles of the upper end faces of the two vertical plates in a penetrating mode, and universal wheels are fixedly arranged at the four corners of the lower end face of the box body. The detection mechanism comprises an arc-shaped block, two limiting rods, a hand pulling plate, a cover plate and a rotating disc. According to the utility model, the four universal wheels are arranged, so that the box body is more convenient to move, and the detection mechanism is arranged, so that the air tightness of an internal pipeline and an external pipeline of the box body can be detected through a pressure sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of chillers, in particular to a chiller for airtightness detection. Background Technique

[0002] A chiller, also known as a refrigerating machine or a freezer, is a cooling water equipment that can provide constant temperature, constant flow, and constant pressure. Its working principle is to utilize a refrigerant circulation system, through main components such as a compressor, a condenser, an expansion valve, and an evaporator, to cool the cooling water and maintain it at a constant low temperature state. Since it can precisely control the temperature, it is widely used in fields such as the plastics industry, the electroplating industry, the electronics industry, and the construction industry.

[0003] For some existing chillers, when moving, it usually requires operators to carry the chiller. Since there are many internal parts of the chiller and it is relatively heavy, it is rather troublesome to carry. And for such chillers, in order to convey water from one end to the other end, pipelines are usually arranged inside and outside. Since there is no detection mechanism inside the chiller, it cannot detect the airtightness of the pipeline joints.

[0004] Therefore, those skilled in the art provide a chiller for airtightness detection to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a chiller for airtightness detection. By setting four universal wheels, it is more convenient to move the box body. By setting a detection mechanism, it can detect the airtightness of the internal pipeline and the external pipeline of the box body through a pressure sensor.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A chiller for airtightness detection, including a chiller body, two first pipelines, two first solenoid valves, a detection mechanism, a second pipeline, and a second solenoid valve. The chiller body includes a box body, two sliding doors, two vertical plates, four fixing plates, four sliding plates, and a cross plate. A lead screw is rotatably arranged through the middle position of the front side of the upper end surface of the box body. An L-shaped plate is threadedly sleeved on the lower side of the outer end surface of the lead screw. Rotating plates are rotatably arranged through the middle positions of the upper end surfaces of the two vertical plates. Universal wheels are fixedly arranged at the four corners of the lower end surface of the box body;

[0007] The detection mechanism includes an arc-shaped block, two limiting rods, a hand-pulling plate, a cover plate, and a turntable. A return spring is fixedly arranged between the hand-pulling plate and the arc-shaped block. A top rod is slidably arranged through the inner bottom surface of the arc-shaped block. Two fixed disks are fixedly arranged on the upper side of the inner wall of the arc-shaped block. A pressure sensor is movably arranged on the upper end surface of one of the two fixed disks on the upper side.

[0008] Through the above technical solution, by rotating the lead screw, the mouth-shaped plate is driven to move upward. At this time, the mouth-shaped plate drives the cross plate to move upward through four L-shaped plates, so that the four sliding plates enter the interiors of the four fixed plates. At this time, the box body can be moved. And when the mouth-shaped plate moves upward to the uppermost end, the two rotating plates leave the interiors of the two sliding doors, and then the two rotating plates are rotated in opposite directions, thus releasing the fixation of the two sliding doors. At this time, the two sliding doors can be opened, which is convenient for observing the interior of the box body. By pulling the hand-pull plate forward on one side and holding the cover plate and rotating it clockwise on the other side, when it can no longer be rotated, release the pulling of the hand-pull plate, and then close the two first solenoid valves and open the second solenoid valve. At this time, a pressure of 4 bar can be introduced into the second pipeline. Driven by the pressure, the ejector rod moves upward. At this time, the upper end of the ejector rod abuts against the lower end of the pressure sensor, and the amount of pressure drop can be known.

[0009] Further, the two first pipelines are respectively fixedly arranged at the middle positions near the lower sides of the front and rear end faces of the chiller body, and the two first solenoid valves are respectively arranged inside the two first pipelines on the opposite sides;

[0010] Through the above technical solution, by opening the two first solenoid valves, the two first pipelines are opened, and water can be introduced from one first pipeline and flow out from the other pipeline.

[0011] Further, the second pipeline is fixedly connected to one of the front sides of the two first pipelines, and the second solenoid valve is arranged inside the upper side of the second pipeline;

[0012] Through the above technical solution, by closing the two first solenoid valves, the second solenoid valve can be opened at this time, and a pressure of 4 bar is introduced into the second pipeline, and the airtightness of the pipelines inside the box body and the external pipelines can be tested.

[0013] Further, the two sliding doors are respectively hinged to the front and rear positions of the upper end face of the box body, and the two vertical plates are both fixedly arranged at the middle positions on one side of the upper end face of the mouth-shaped plate;

[0014] Through the above technical solution, when the mouth-shaped plate moves upward, it drives the two vertical plates to move together. The two vertical plates drive the two rotating plates to leave the interiors of the two sliding doors. At this time, the two rotating plates can be rotated in opposite directions.

[0015] Further, the four fixed plates are respectively fixedly arranged around the lower end face of the box body, the four sliding plates respectively penetrate and are slidably arranged at the lower end faces of the four fixed plates, the cross plate is fixedly arranged between the four sliding plates, and the mouth-shaped plate is connected to the cross plate through four L-shaped plates;

[0016] Through the above technical solution, when the orifice plate moves upward, the L-shaped plate drives the orifice plate to move together, so that the four sliding plates enter the interior of the four fixing plates. At this time, the pointed blocks at the lower ends of the sliding plates do not contact the ground, and the box body can be driven to move by the universal wheels.

[0017] Further, the arc-shaped block is fixedly arranged on one surface at the rear sides of the two first pipes, the two limiting rods are respectively fixedly arranged on both sides of the front end surface of the arc-shaped block, and the hand-pulling plate is slidably arranged between the two limiting rods;

[0018] Through the above technical solution, the hand-pulling plate is limited and supported by the limiting block, so that the hand-pulling plate is more stable when moving.

[0019] Further, the lower side of the outer end surface of the ejector rod penetrates and slides through the middle position of the upper end surface at the rear sides of the two first pipes, the cover plate is snap-connected to the upper end surface of the arc-shaped block, and the turntable is slidably arranged between the two fixed disks;

[0020] Through the above technical solution, when the cover plate is rotated, the turntable is driven to rotate together by the cylinder at the lower end of the cover plate, so that the middle position of the turntable does not abut against the upper end of the ejector rod. At this time, the lower end of the ejector rod is jacked upward by the air pressure in the first pipe, and then the jacking force acts on the pressure sensor, and the amount of pressure drop can be detected.

[0021] The utility model has the following beneficial effects:

[0022] 1. A chiller for airtightness detection proposed by the utility model drives the orifice plate on its surface to move upward by rotating the lead screw. At this time, the orifice plate drives the four sliding plates to move upward through the four L-shaped plates and the cross plate, so that the pointed blocks at the lower end faces of the four sliding plates do not abut against the ground. At this time, the box body can be driven to move by the four universal wheels at the lower end of the box body, making it more convenient to move. And when the orifice plate moves to the upper end, the vertical plate drives the rotating plate out of the interior of the sliding door, and then the two rotating plates are rotated in opposite directions to release the fixation of the two sliding doors, and then the two sliding doors can be opened to facilitate the observation of the interior of the box body.

[0023] 2. A chiller for airtightness detection proposed by the utility model, while pulling the hand-pulling plate forward and holding the cover plate to rotate clockwise, when the cover plate cannot be rotated continuously, release the pulling of the hand-pulling plate. At this time, the middle position of the turntable does not abut against the upper end of the ejector rod, and then close the two first solenoid valves and open the second solenoid valve, and introduce 4 bar of air pressure into the second pipe. At this time, the air pressure after passing through the pipe abuts against the lower end of the ejector rod, thereby driving the ejector rod to move upward. During the movement of the ejector rod, the upper end surface of the ejector rod abuts against the lower end surface of the pressure sensor, and at this time, the jacking force can be transmitted to the pressure sensor, and the amount of pressure drop can be detected through the change of the pressure value. Brief Description of the Drawings

[0024] Figure 1 It is the upper side axonometric view of the present utility model;

[0025] Figure 2 It is the axonometric view after the mouth-shaped plate of the present utility model rises;

[0026] Figure 3 It is the lower side axonometric view of the present utility model;

[0027] Figure 4 It is the axonometric view of the detection mechanism of the present utility model;

[0028] Figure 5 It is the upper side axonometric view of the side section of the arc-shaped block of the present utility model;

[0029] Figure 6 It is the lower side axonometric view of the side section of the arc-shaped block of the present utility model;

[0030] Figure 7 It is the upper side exploded view of the detection mechanism of the present utility model;

[0031] Figure 8 It is the lower side exploded view of the detection mechanism of the present utility model.

[0032] Legend Explanation:

[0033] 1. Chiller body; 2. First pipeline; 3. First solenoid valve; 4. Detection mechanism; 5. Second pipeline; 6. Second solenoid valve; 101. Box body; 102. Lead screw; 103. Mouth-shaped plate; 104. Sliding door; 105. Vertical plate; 106. Rotating plate; 107. Universal wheel; 108. Fixed plate; 109. Slide plate; 110. Cross plate; 401. Arc-shaped block; 402. Limit rod; 403. Hand-pulling plate; 404. Return spring; 405. Cover plate; 406. Thumb rod; 407. Fixed disk; 408. Turntable; 409. Pressure sensor. Detailed Embodiment

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] Refer to Figure 1-8, an embodiment provided by the present utility model: a chiller for airtightness detection, comprising a chiller body 1, two first pipelines 2, two first solenoid valves 3, a detection mechanism 4, a second pipeline 5 and a second solenoid valve 6. The chiller body 1 includes a box body 101, two sliding doors 104, two vertical plates 105, four fixing plates 108, four sliding plates 109 and a cross plate 110. A lead screw 102 is rotatably arranged through the middle position of the front side of the upper end face of the box body 101. An L-shaped plate 103 is threadedly sleeved on the lower side of the outer end face of the lead screw 102. Universal wheels 107 are fixedly arranged at the four corners of the lower end face of the box body 101. The four fixing plates 108 are respectively fixedly arranged around the lower end face of the box body 101. The four sliding plates 109 respectively penetrate and slide through the lower end faces of the four fixing plates 108. The cross plate 110 is fixedly arranged between the four sliding plates 109. The L-shaped plate 103 is connected to the cross plate 110 through four L-shaped plates. By rotating the lead screw 102, the L-shaped plate 103 is driven to move upward. At this time, the L-shaped plate 103 drives the cross plate 110 to move upward through the four L-shaped plates, so that the four sliding plates 109 enter the interiors of the four fixing plates 108. At this time, the pointed blocks at the lower ends of the four sliding plates 109 do not contact the ground, and the box body 101 can be moved through the four universal wheels 107.

[0036] Rotating plates 106 are rotatably arranged through the middle positions of the upper end faces of the two vertical plates 105. The two sliding doors 104 are respectively hinged to the front side and the rear side positions of the upper end face of the box body 101. The two vertical plates 105 are fixedly arranged at the middle positions of one side of the upper end face of the L-shaped plate 103. When the lead screw 102 drives the L-shaped plate 103 to move upward to the uppermost end, the two rotating plates 106 leave the interiors of the two sliding doors 104, and then the two rotating plates 106 are rotated in opposite directions, thereby releasing the fixation of the two sliding doors 104. At this time, the two sliding doors 104 can be opened to facilitate observing the interior of the box body 101. The detection mechanism 4 includes an arc-shaped block 401, two limiting rods 402, a hand-pulling plate 403, a cover plate 405 and a turntable 408. A return spring 404 is fixedly arranged between the hand-pulling plate 403 and the arc-shaped block 401. A push rod 406 penetrates and slides through the inner bottom surface of the arc-shaped block 401. Two fixed disks 407 are fixedly arranged on the upper side of the inner wall of the arc-shaped block 401. A pressure sensor 409 is movably arranged on the upper end face of one of the two fixed disks 407 on the upper side.

[0037] The arc-shaped block 401 is fixedly arranged on one surface at the rear side of the two first pipes 2. The two limiting rods 402 are respectively fixedly arranged on both sides of the front end surface of the arc-shaped block 401. The hand-pulling plate 403 is slidably arranged between the two limiting rods 402. The lower side of the outer end surface of the ejector rod 406 is slidably arranged through the middle position of the upper end surface at the rear side of the two first pipes 2. The cover plate 405 is snap-connected to the upper end surface of the arc-shaped block 401. The turntable 408 is slidably arranged between the two fixed disks 407. By pulling the hand-pulling plate 403 forward on one side and holding the cover plate 405 and rotating it clockwise on the other side, during the process of rotating the cover plate 405, since the cylinder at its lower end is inside the turntable 408, the turntable 408 can be driven to rotate together. During the rotation process, the vertical arc-shaped plate on the surface of the turntable 408 fits with the inner wall of the arc-shaped block 401, so as to limit the rotation range of the turntable 408. When it can no longer rotate, release the pulling of the hand-pulling plate 403. At this time, the convex block on the surface of the hand-pulling plate 403 re-enters the inside of the cover plate 405, and the middle position of the turntable 408 does not abut against the upper end of the ejector rod 406, releasing the fixation of the ejector rod 406 in the vertical direction.

[0038] The two first pipes 2 are respectively fixedly arranged at the middle positions near the lower sides of the front and rear end surfaces of the chiller body 1. The two first solenoid valves 3 are respectively arranged inside the two first pipes 2 on the opposite sides. The second pipe 5 is fixedly connected to one of the front sides of the two first pipes 2. The second solenoid valve 6 is arranged inside the upper side of the second pipe 5. When detecting the airtightness, by closing the two first solenoid valves 3, the second solenoid valve 6 can be opened at this time, and a pressure of 4 bar is introduced into the second pipe 5. The air pressure passing through the internal pipes and external pipes of the box body 101 reaches the ejector rod 406. At this time, the air pressure jacks up the ejector rod 406, and the upper end surface of the ejector rod 406 squeezes the lower end surface of the pressure sensor 409, so that the pressure sensor 409 generates a change value. The amount of pressure drop can be observed through the change value. And by pulling the hand-pulling plate 403 forward on one side and holding the cover plate 405 and moving it upward on the other side, the pressure sensor 409 can be taken out for convenient maintenance.

[0039] Working principle: When preparing to move the box body 101, by rotating the lead screw 102 for a certain distance, at this time, the pointed blocks at the lower ends of the four sliding plates 109 do not abut against the ground, and the box body 101 can be driven to move by the universal wheels 107. When it is necessary to observe the internal situation of the box body 101, by rotating the lead screw 102, the mouth-shaped plate 103 is moved to the uppermost end, and then the two rotating plates 106 are rotated in the opposite direction. At this time, the two sliding doors 104 can be opened. When performing the airtightness test, by pulling the hand-pulling plate 403 forward while holding the cover plate 405 and rotating it clockwise. When it can no longer be rotated, release the pull on the hand-pulling plate 403, then close the two first solenoid valves 3 and open the second solenoid valve 6, and introduce a pressure of 4 bar into the second pipeline 5. At this time, the change value generated by the pressure sensor 409 can be used to show the amount of pressure drop. When it is necessary to repair the pressure sensor 409, pull the hand-pulling plate 403 forward while taking the cover plate 405 upward. After removing the cover plate 405, the pressure sensor 409 can be removed.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water chiller for air tightness detection, comprising a water chiller body (1), two first pipes (2), two first solenoid valves (3), a detection mechanism (4), a second pipe (5) and a second solenoid valve (6), characterized in that: The chiller body (1) comprises a box body (101), two sliding doors (104), two vertical plates (105), four fixed plates (108), four sliding plates (109) and a cross plate (110); a screw rod (102) is rotatably provided through the middle position of the front side of the upper end face of the box body (101); a mouth-shaped plate (103) is threadedly provided on the lower side of the outer end face of the screw rod (102); a rotating plate (106) is rotatably provided through the middle position of the upper end faces of the two vertical plates (105); and universal wheels (107) are fixedly provided at the four corners of the lower end face of the box body (101); The detection mechanism (4) comprises an arc block (401), two limit rods (402), a hand-pull plate (403), a cover plate (405) and a rotating disk (408); a return spring (404) is fixedly arranged between the hand-pull plate (403) and the arc block (401); a push rod (406) is slidably arranged through the inner bottom surface of the arc block (401); two fixed disks (407) are fixedly arranged on the upper side of the inner wall of the arc block (401); and a pressure sensor (409) is movably arranged on an upper end surface of the upper side of the two fixed disks (407).

2. A water chiller for air tightness detection according to claim 1, characterized in that: The two first pipes (2) are respectively fixedly arranged at the middle position of the lower side of the front and rear end surfaces of the chiller body (1), and the two first solenoid valves (3) are respectively arranged inside the opposite sides of the two first pipes (2).

3. A water chiller for air tightness detection according to claim 1, characterized in that: The second pipeline (5) is fixedly connected to one of the front sides of the two first pipelines (2), and the second solenoid valve (6) is arranged inside the upper side of the second pipeline (5).

4. A water chiller for air tightness detection according to claim 1, characterized in that: The two sliding doors (104) are hingedly arranged at the front and rear sides of the upper end of the box body (101), respectively, and the two vertical plates (105) are fixedly arranged at the middle position of one side of the upper end of the mouth-shaped plate (103).

5. The water chiller for air tightness detection according to claim 1, characterized in that: The four fixed plates (108) are respectively fixedly arranged around the lower end surface of the box body (101), the four slide plates (109) are respectively slidably arranged on the lower end surfaces of the four fixed plates (108), the cross plate (110) is fixedly arranged between the four slide plates (109), and the mouth-shaped plate (103) is connected to the cross plate (110) via four L-shaped plates.

6. A water chiller for air tightness detection according to claim 1, characterized in that: The arc block (401) is fixedly arranged on a surface at the rear side of the two first pipes (2), the two limit rods (402) are respectively fixedly arranged on both sides of the front end surface of the arc block (401), and the hand pull plate (403) is slidably arranged between the two limit rods (402).

7. A water chiller for air tightness detection according to claim 1, characterized in that: The lower side of the outer end surface of the push rod (406) is slidably disposed through the middle position of an upper end surface on the rear side of the two first pipes (2), the cover plate (405) is clamped and disposed on the upper end surface of the arc block (401), and the rotating disk (408) is slidably disposed between the two fixed disks (407).

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