Portable vacuum pump detection device

Abstract

The utility model provides a portable vacuum pump detection device, and relates to the field of vacuum pumps. Comprising a shell and a piston device arranged in the shell in a sliding mode, the piston device comprises a piston plate, the outer side of the piston plate is connected with a first sealing ring in a sleeved mode, and a groove in the upper surface of the first sealing ring is matched with an upper sealing ring fixing clamping plate. Through the arrangement of the sealing ring, when the vacuum pump is detected for a long time, the sealing ring is aged, the sealing ring needs to be replaced, the piston plate extends out, the upper sealing ring fixing clamping plate and the lower sealing ring fixing clamping plate are opened, the aged sealing ring I is taken down, and a new sealing ring I is replaced; the upper sealing ring fixing clamping plate and the lower sealing ring fixing clamping plate are tensioned through three first springs and three second springs up and down, a new sealing ring I is clamped, the situation that the sealing ring I falls off in the using process is prevented, when the sealing ring is aged, the new sealing ring can be replaced in time, and the situation that the sealing ring I is damaged when the vacuum pump is detected is effectively prevented. And the piston plate leaks air.

Description

Technical Field

[0001] The utility model relates to a vacuum pump detection device, in particular to a portable vacuum pump detection device, belonging to the technical field of vacuum pumps. Background Art

[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum. Generally speaking, a vacuum pump is a device that uses various methods to improve, generate and maintain a vacuum in a closed space. According to the working principle of the vacuum pump, the vacuum pump can basically be divided into two types, namely, a gas capture pump and a gas transmission pump. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.

[0003] After searching, a Chinese patent with publication number CN215170682U discloses a portable vacuum pump detection device, which relates to the field of vacuum pump detection and solves the problem that the vacuum pump detection device in the prior art is inconvenient to carry. Its technical points are: it includes a measuring part and a distance sensor, the measuring part is divided into a negative pressure area and a measuring area by a partition, a piston rod is slidably connected to the partition, one end of the piston rod in the negative pressure area is fixedly connected to a piston head, one end of the piston rod arranged in the measuring area is fixedly connected to a measuring plate, a linear spring is arranged between the measuring plate and the bottom of the measuring area, an upper cover is fixedly connected to the mouth of the measuring area, the distance sensor is fixedly connected to the upper cover, and the measuring rod on the distance sensor passes through the upper cover and contacts the measuring plate; the user information structure is simple, easy to carry, and at the same time, it has high practicality and sensitivity, and can measure the negative pressure value in real time.

[0004] Although the above scheme is easy to carry, has high practical sensitivity, and can measure the negative pressure value in real time, it is difficult to replace the sealing ring on the piston plate of the vacuum pump detection device in the above patent, because long-term use and detection may easily cause the sealing ring in the detection device to age, resulting in air leakage during detection; for this reason, we provide a portable vacuum pump detection device to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a portable vacuum pump detection device in order to solve the above problems, so as to solve the problem that it is difficult to replace the sealing ring on the piston plate in the prior art.

[0007] (II) Technical solution

[0008] The utility model is realized through the following technical scheme: a portable vacuum pump detection device, comprising a shell, a piston device slidably arranged inside the shell, the piston device comprising a piston plate, the outer side of the piston plate is sleeved with a sealing ring, the upper surface groove of the sealing ring one is adapted to the upper sealing ring fixing cardboard, the inner top wall of the upper sealing ring fixing cardboard is fixedly connected to one end of the first spring, the other end of the first spring is fixedly connected to the upper surface of the piston plate, the upper surface of the upper sealing ring fixing cardboard is fixedly connected to the bottom end of the upper handle, the lower surface groove of the sealing ring one is adapted to the lower sealing ring fixing cardboard, the upper surface of the lower sealing ring fixing cardboard is fixedly connected to one end of the second spring, the other end of the second spring is fixedly connected to the lower surface of the piston plate, the lower surface of the lower sealing ring fixing cardboard is fixedly connected to the lower surface of the lower handle, the middle part of the upper surface of the piston plate is fixedly connected to one end of the piston rod, and the other end of the piston rod is fixedly connected to the middle part of the lower surface of the measuring plate.

[0009] Preferably, one end of the shell is fixedly connected to the middle part of the lower surface of the lower cover plate, the internal groove of the lower cover plate is sleeved with the second sealing ring, the lower cover plate is connected to the upper cover plate by bolts, the lower cover plate and the upper cover plate are fixed by bolts to prevent the upper cover plate from falling off under vacuum, and they are fixed by bolts. The second sealing ring can prevent gas leakage at the interface between the lower cover plate and the upper cover plate, thereby playing a sealing role.

[0010] Preferably, a display is fixedly arranged on the upper surface of the upper cover plate, and a measuring rod is fixedly arranged in the middle of the bottom surface of the display, and the other end of the measuring rod is fixedly connected to the middle of the upper surface of the measuring plate. When the measured data is transmitted to the display through the measuring rod, the detection data of the vacuum pump is displayed on the display, which is convenient for observing the detection status of the vacuum pump during detection. Maintenance personnel can replace the problematic vacuum pump according to the detection data to prevent damage to the device.

[0011] Preferably, the groove at the other end of the shell is sleeved with the sealing ring three, and the sealing ring three is sleeved with the inner groove at one end of the connecting tube. The connection between the shell and the connecting tube is detected and sealed by the sealing ring three, which can prevent air leakage at the interface between the shell and the connecting tube during detection. The sealing ring three plays a sealing role and can effectively prevent inaccurate data from being detected.

[0012] Preferably, the upper end of one side of the connecting tube is fixedly connected to one end of the lower fixing plate, and the lower fixing plate is connected to the upper fixing plate by bolts. When testing, the upper fixing plate and the lower fixing plate are connected by bolts, and the connection position between the outer shell and the connecting tube is sealed by three pairs of sealing rings to prevent leakage when a vacuum is applied.

[0013] Preferably, one side of the lower surface of the measuring plate is fixedly connected to one end of the third spring, and the interior of the third spring is sleeved with the surface of the piston rod. When the piston rod slides inside the outer shell, the measuring plate is supported and buffered by the spring, so that the measuring plate and the piston rod will not rebound when sliding.

[0014] Preferably, the other end of the third spring is fixedly connected to the internal partition surface of the outer shell, and the surface of the piston rod is slidably connected to the internal partition groove of the outer shell, so that the piston rod is supported when it slides inside the outer shell, and the outer shell is buffered by the spring to prevent the outer shell from not rebounding when sliding.

[0015] Preferably, one side of the piston plate is slidably connected to the internal slide groove of the outer shell, and the other end of the outer shell is fixedly connected to one end of the connecting tube. The outer shell and the connecting tube are connected by an upper fixed plate and a lower fixed plate, so that the vacuum drives the piston plate to slide up and down inside the outer shell, thereby facilitating rapid detection of the vacuum pump.

[0016] The utility model provides a portable vacuum pump detection device, which has the following beneficial effects:

[0017] 1. Through the sealing ring setting, when the vacuum pump is tested for a long time, the sealing ring is aged and needs to be replaced. The piston plate is extended, the upper sealing ring fixing cardboard and the lower sealing ring fixing cardboard are opened, the aged sealing ring is removed, and a new sealing ring is replaced. The upper sealing ring fixing cardboard and the lower sealing ring fixing cardboard are tightened by the three first springs and the second springs respectively, and the new sealing ring is clamped to prevent it from falling off during use. When the sealing ring is aged, a new sealing ring can be replaced in time, which effectively prevents the piston plate from leaking when the vacuum pump is tested.

[0018] 2. Through the detection device setting, when the detection is carried out, the vacuum pushes the piston plate to slide up and down in the shell, and the piston plate pushes the piston rod to control the measuring rod to slide up and down, so that the measuring rod is conveniently pushed to transmit the detection data to the display, so that the detection data can be easy to observe, and the detection personnel can judge whether the vacuum pump is damaged by observing the data. The upper fixing plate and the lower fixing plate are fixed by bolts, so that the shell and the connecting pipe can be connected, and they are sealed by the sealing ring three to prevent air leakage at the interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the shell of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the piston device of the utility model.

[0024]

Main component symbol description

[0025] 1. Shell;

[0026] 2. Piston device; 201. Piston plate; 202. First spring; 203. Upper sealing ring fixing plate; 204. Upper handle; 205. Sealing ring 1; 206. Lower handle; 207. Lower sealing ring fixing plate; 208. Second spring;

[0027] 3. Piston rod; 4. Measuring plate; 5. Measuring rod; 6. Display; 7. Upper cover plate; 8. Sealing ring 2; 9. Sealing ring 3; 10. Lower fixing plate; 11. Upper fixing plate; 12. Lower cover plate; 13. Connecting pipe; 14. Third spring. DETAILED DESCRIPTION

[0028] The embodiment of the utility model provides a portable vacuum pump detection device.

[0029] See also Figure 1 and Figure 2 , including a shell 1, a groove at the other end of the shell 1 is sleeved with a sealing ring 39, and the sealing ring 39 is sleeved with an inner groove at one end of a connecting pipe 13. The connection between the shell 1 and the connecting pipe 13 is sealed with a sealing ring 39, which can prevent gas leakage in a vacuum state, resulting in inaccurate detection data. The upper end of one side of the connecting pipe 13 is fixedly connected to one end of a lower fixed plate 10, and the lower fixed plate 10 is connected to an upper fixed plate 11 by bolts. The shell 1 and the connecting pipe 13 are threadedly connected through the lower fixed plate 10 and the upper fixed plate 11, so that the vacuum pump can be quickly detected, and the connection air out of the shell 1 and the connecting pipe 13 can be sealed by the sealing ring 39.

[0030] One end of the outer shell 1 is fixedly connected to the middle part of the lower surface of the lower cover plate 12, the inner groove of the lower cover plate 12 is sleeved with the sealing ring 8, the lower cover plate 12 is connected to the upper cover plate 7 by bolts, the lower cover plate 12 and the upper cover plate 7 are connected by bolts, and then the connection between the lower cover plate 12 and the upper cover plate 7 is sealed by the sealing ring 8, which can effectively prevent gas leakage at the connection.

[0031] See also Figure 4, a display 6 is fixedly arranged on the upper surface of the upper cover plate 7, a measuring rod 5 is fixedly arranged in the middle of the bottom surface of the display 6, the other end of the measuring rod 5 is fixedly connected to the middle of the upper surface of the measuring plate 4, and the measuring plate 4 is used to support the measuring rod 5 to transmit the detected data to the display 6, so that the observer can observe the detection data of the vacuum pump and perform maintenance according to the detected data. The piston device 2 is slidably arranged inside the shell 1, and the piston device 2 includes a piston plate 201, one side of the piston plate 201 is slidably connected to the internal slide groove of the shell 1, and the other end of the shell 1 is fixedly connected to one end of the connecting pipe 13, through the piston plate 201 Sliding up and down inside the shell 1 is convenient for detecting whether the vacuum pump is damaged. The shell 1 and the connecting pipe 13 are sealed by the sealing ring 3 9 to prevent gas leakage at the connection between the shell 1 and the connecting pipe 13. The other end of the second spring 208 is fixedly connected to the lower surface of the piston plate 201, and the lower surface of the lower sealing ring fixing clamp 207 is fixedly connected to the lower surface of the lower handle 206. The middle part of the upper surface of the piston plate 201 is fixedly connected to one end of the piston rod 3, and the other end of the piston rod 3 is fixedly connected to the middle part of the lower surface of the measuring plate 4, and one side of the lower surface of the measuring plate 4 is fixedly connected to one end of the third spring 14.

[0032] See also Figure 3 The outer side of the piston plate 201 is sleeved with the sealing ring 205, the upper surface groove of the sealing ring 205 is adapted to the upper sealing ring fixing card plate 203, the inner top wall of the upper sealing ring fixing card plate 203 is fixedly connected to one end of the first spring 202, the other end of the first spring 202 is fixedly connected to the upper surface of the piston plate 201, the upper surface of the upper sealing ring fixing card plate 203 is fixedly connected to the bottom end of the upper handle 204, the lower surface groove of the sealing ring 205 is adapted to the lower sealing ring fixing card plate 207, and the upper surface of the lower sealing ring fixing card plate 207 is fixedly connected to one end of the second spring 208.

[0033] See also Figure 5 The other end of the third spring 14 is fixedly connected to the surface of the internal partition of the outer shell 1, and the surface of the piston rod 3 is slidably connected to the internal partition groove of the outer shell 1. When the piston plate 201 drives the piston rod 3 and the measuring plate 4 to slide inside the outer shell 1, the third spring 14 can play a buffering role to prevent the piston plate 201 from sliding up and down smoothly, resulting in inaccurate detection data. The inside of the third spring 14 is sleeved with the surface of the piston rod 3. When the piston rod 3 and the measuring plate 4 are pressed downward, the third spring 14 exerts an elastic force on the measuring plate 4 to prevent the measuring plate 4 and the piston rod 3 from not being able to bounce when they are extended and retracted downward, resulting in the inability to support the use of the detection device.

[0034] Working principle: fix the mouth of the negative pressure zone to the vacuum port of the vacuum pump, start the vacuum pump, the vacuum pump extracts the air in the negative pressure zone, negative pressure is generated in the negative pressure zone, the piston plate 201 moves toward the mouth of the negative pressure zone, the piston plate 201 drives the piston rod 3 to slide inside the housing 1 during measurement when moving, the measuring plate 4 compresses the third spring 14, the piston rod 3 is braked to the point where the pressure of the third spring 14 is the same as the pressure borne by the piston plate 201, the piston rod 3 stops moving, and the negative pressure value in the negative pressure zone can be measured by measuring the moving distance of the piston rod 3. After the detection device has been used for a long time, the sealing ring of the piston plate 201 ages, causing the piston plate 201 to leak during vacuum detection. When the sealing ring needs to be replaced, the piston plate 201 is pushed out of the outside by the piston rod 3, and the sealing ring 205 on the piston plate 201 can be replaced. The upper sealing ring can be fixed to the card plate 20 by manually pulling the upper handle 204 and the lower handle 206. 3 and the lower sealing ring fixing card plate 207 are opened outward, so it is convenient to take out the sealing ring 1 205 for quick replacement. The upper sealing ring fixing card plate 203 and the lower sealing ring fixing card plate 207 are tightened by the three first springs 202 and the second springs 208 respectively, which can effectively prevent the sealing ring 1 205 from falling off when sliding up and down, and the vacuum pump can be repaired more conveniently. The housing 1 and the connecting pipe 13 fix the lower fixing plate 10 and the upper fixing plate 11 by bolts, and the interface between the housing 1 and the connecting pipe 13 is sealed by the sealing ring 3 9 to effectively prevent air leakage. The lower cover plate 12 and the upper cover plate 7 are fixed by bolts, and the interface between the lower cover plate 12 and the upper cover plate 7 is sealed by the sealing ring 2 8, which effectively prevents air leakage in the detection area, resulting in inaccurate detection data of the detection device, making it difficult to judge whether the detected vacuum pump is damaged, and unable to replace a new vacuum pump for use.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable vacuum pump detection device, comprising a housing (1), characterized in that: A piston device (2) is slidably arranged inside the housing (1), the piston device (2) comprising a piston plate (201), the outer side of the piston plate (201) is sleeved with a sealing ring (205), the upper surface groove of the sealing ring (205) is matched with an upper sealing ring fixing cardboard (203), the inner top wall of the upper sealing ring fixing cardboard (203) is fixedly connected to one end of a first spring (202), the other end of the first spring (202) is fixedly connected to the upper surface of the piston plate (201), the upper surface of the upper sealing ring fixing cardboard (203) is fixedly connected to the bottom end of an upper handle (204) The groove on the lower surface of the sealing ring (205) is matched with the lower sealing ring fixing card plate (207), the upper surface of the lower sealing ring fixing card plate (207) is fixedly connected to one end of the second spring (208), the other end of the second spring (208) is fixedly connected to the lower surface of the piston plate (201), the lower surface of the lower sealing ring fixing card plate (207) is fixedly connected to the lower surface of the lower handle (206), the middle part of the upper surface of the piston plate (201) is fixedly connected to one end of the piston rod (3), and the other end of the piston rod (3) is fixedly connected to the middle part of the lower surface of the measuring plate (4).

2. A portable vacuum pump detection device according to claim 1, characterized in that: One end of the housing (1) is fixedly connected to the middle of the lower surface of the lower cover plate (12), the inner groove of the lower cover plate (12) is sleeved with the second sealing ring (8), and the lower cover plate (12) is connected to the upper cover plate (7) by bolts.

3. A portable vacuum pump detection device according to claim 2, characterized in that: A display (6) is fixedly arranged on the upper surface of the upper cover plate (7), a measuring rod (5) is fixedly arranged in the middle of the bottom surface of the display (6), and the other end of the measuring rod (5) is fixedly connected to the middle of the upper surface of the measuring plate (4).

4. A portable vacuum pump detection device according to claim 1, characterized in that: The groove at the other end of the housing (1) is sleeved with the sealing ring three (9), and the sealing ring three (9) is sleeved with the inner groove at one end of the connecting pipe (13).

5. A portable vacuum pump detection device according to claim 4, characterized in that: An upper end of one side of the connecting pipe (13) is fixedly connected to one end of the lower fixing plate (10), and the lower fixing plate (10) is connected to the upper fixing plate (11) via bolts.

6. A portable vacuum pump detection device according to claim 3, characterized in that: One side of the lower surface of the measuring plate (4) is fixedly connected to one end of a third spring (14), and the interior of the third spring (14) is sleeved with the surface of the piston rod (3).

7. A portable vacuum pump detection device according to claim 6, characterized in that: The other end of the third spring (14) is fixedly connected to the surface of the internal partition of the outer shell (1), and the surface of the piston rod (3) is slidably connected to the internal partition groove of the outer shell (1).

8. A portable vacuum pump detection device according to claim 1, characterized in that: One side of the piston plate (201) is slidably connected to the internal sliding groove of the outer shell (1), and the other end of the outer shell (1) is fixedly connected to one end of the connecting pipe (13).

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