Equipment for detecting sealing performance of vacuum container of environmental test chamber

Abstract

The utility model discloses an environmental test chamber vacuum container leakproofness detection device, and specifically relates to the detection device technology field, the environmental test chamber vacuum container leakproofness detection device comprises a placing seat and a detection box, the detection box comprises a first outer cover and a second outer cover, the outer side of the detection box is provided with a lifting type sealing structure, and the lifting type sealing structure is provided with an opening. And a pressure intensity detector and a vacuum air pump are arranged on the second outer cover. According to the utility model, through the arrangement of the lifting type sealing structure, the joint of the two combined outer covers can be covered, the sealing performance of the detection box is ensured, and the defect that the air pressure intensity in the detection box cannot reach a detection value and the detection is influenced because air in the box overflows from a gap of the joint of the two outer covers due to the poor sealing performance of the detection box is avoided; when the air in the inner cavity of the detection box is extracted, the situation that the air pressure value in the detection box is not accurate due to the fact that external air enters the detection box through the gap can be prevented, the sealing effect of the environment test chamber vacuum container can be accurately detected, and the detection effect of the detection equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a sealing detection device for a vacuum container in an environmental test chamber. Background Art

[0002] An environmental test chamber vacuum container is a device specifically designed to simulate specific environmental conditions. It is primarily used to test and evaluate product performance under extreme vacuum conditions. This type of container is widely used in a variety of fields, including aerospace, electronics, automotive, and scientific research. Under the operating conditions of this chamber, the formaldehyde emissions of artificial boards tested meet national standards. The measured data can directly reflect the current status of formaldehyde release from the material. The data obtained has a direct correlation with the environmental pollution situation. Therefore, the sealing of the environmental test chamber is a prerequisite for accurately monitoring the dynamic changes in pollutant concentrations.

[0003] At present, in order to facilitate the placement and removal of the vacuum container of the environmental test chamber, the test box is assembled from two outer covers. However, there is a splicing gap in the test box after assembly, which makes the sealing of the test box poor. During testing, the air in the test box is easy to overflow from the gap at the connection of the two outer covers, causing the air pressure intensity in the test box to fail to reach the test value, thereby affecting the test. In addition, when the air in the inner cavity of the test box is extracted, external air is easy to enter the test box through the gap, resulting in inaccurate air pressure value in the test box, and the sealing effect of the vacuum container of the environmental test chamber cannot be accurately detected, resulting in poor detection effect. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing detection device for a vacuum container in an environmental test chamber, so as to solve the above-mentioned shortcomings in the technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vacuum container sealing detection device for an environmental test chamber, comprising a placement seat and a detection box, the detection box comprising a first outer cover and a second outer cover, the second outer cover is provided with a pressure detector and a vacuum pump, the vacuum pump is arranged on one side of the pressure detector, and the air inlet end of the vacuum pump is connected to an air extraction pipe, the first outer cover is provided with an air intake pump, the air outlet end of the air intake pump is connected to an air intake pipe, the air intake end of the air extraction pipe passes through and extends to the interior of the second outer cover, the air outlet end of the air intake pipe passes through and extends to the interior of the first outer cover, and the outer side of the placement seat is fixedly connected to a first side plate and a second side plate.

[0006] The first outer cover and the second outer cover are slidably connected to the upper end of the placement seat, and the inner wall of the placement seat is provided with a placement groove and a slide groove, the slide groove is provided on the outside of the placement groove, and an electric telescopic rod is installed inside the placement groove. The lower end surfaces of the first outer cover and the second outer cover are symmetrically connected to two sliders, a horizontal plate is connected between the two sliders, the free end of the electric telescopic rod is connected to the horizontal plate, and the slider is embedded in the inside of the slide groove.

[0007] Specifically, when in use, first, the electric telescopic rod is retracted to drive the slider to move in the slide groove, so that the first outer cover and the second outer cover move outward, and the detection box is opened. Then, the vacuum container of the environmental test chamber to be tested is placed in the middle position of the upper end surface of the placement seat. Then, the electric telescopic rod is extended, and the first outer cover and the second outer cover move toward the middle until they contact and fit together to form the detection box, and the inner cavity of the detection box forms a closed space. Then, the solenoid valve on the air intake pipe is opened, and air is delivered to the inner cavity of the detection box through the cooperation of the air intake pump and the air intake pipe, so that the air pressure in the inner cavity of the detection box is increased. Rise, when the air pressure rises to a certain intensity, close the solenoid valve, use the pressure detector to detect the air pressure in the inner cavity of the detection box, and record the air pressure intensity. If the air pressure drops, it means that the air in the inner cavity of the detection box enters the inner cavity of the vacuum container of the environmental test chamber. Then, by opening the solenoid valve on the exhaust pipe, use the vacuum exhaust pump and the exhaust pipe to extract the air in the inner cavity of the detection box, and use the pressure detector to detect the air pressure in the inner cavity of the detection box. If the air pressure rises, it means that the air in the inner cavity of the vacuum container of the environmental test chamber is leaking out. The above operation can complete the detection of the sealing of the vacuum container of the environmental test chamber.

[0008] Preferably, a lifting sealing structure is provided on the outside of the detection box, and the lifting sealing structure includes an outer frame arranged on the outside of the detection box, the inner side wall of the outer frame is fixedly connected to a panel, and the outer side wall of the panel is symmetrically connected to two sealing strips, and one side of the outer wall of the first outer cover and the second outer cover is provided with a groove adapted to the panel, and the outer side of the outer frame is provided with a driving component for lifting the outer frame.

[0009] Preferably, the driving assembly includes a connecting plate fixedly connected to the outer wall of the outer frame, the inner walls of the first side plate are respectively provided with a cavity and a block groove, a threaded block is embedded in the interior of the block groove, and a threaded rod is connected to the interior of the block groove, the threaded block is threadedly connected to the outside of the threaded rod, and the end of the threaded block away from the block groove is connected to the left connecting plate.

[0010] Preferably, the lower end surface of the first side plate is connected with a mounting box, a reversible motor is mounted in the mounting box, a drive shaft is connected to the output end of the reversible motor, the drive shaft is connected to the inside of the cavity, the outer wall of the drive shaft is connected with a driving gear, the lower end surface of the threaded rod is connected with a driven gear, and the outer part of the driving gear and the driven gear engages with a gear belt.

[0011] Through the above technical scheme:

[0012] After the first cover and the second cover are contacted and fitted to form a detection box, the reversible motor in the mounting box is started, the drive shaft is driven to rotate by the reversible motor, the driving gear rotates with the drive shaft, at the same time, the driving gear cooperates with the gear belt to drive the driven gear to rotate, the driven gear drives the threaded rod to rotate, at the same time, the threaded block cooperates with the threaded rod, the threaded block moves downward in the block groove, and the outer frame connected through the connecting plate is lowered until it is tightly fitted with the placing seat, and the panel and the sealing strip are accurately and tightly clamped in the embedding groove. This operation can seal the connection between the first cover and the second cover, ensure the sealing of the detection box, avoid the air in the detection box overflowing from the gap between the two covers to affect the detection due to poor sealing of the detection box, prevent external air from entering the detection box through the gap to cause inaccurate air pressure value in the detection box when the air in the detection box is extracted, accurately detect the sealing effect of the environmental test chamber vacuum container, and ensure the detection effect of the detection equipment. In addition, after detection, the drive shaft is reversely driven according to the above operation to move the sealing assembly to the highest position, prevent obstruction when the detection box is opened, and do not affect the taking and placing operation of the environmental test chamber vacuum container.

[0013] Preferably, a limiting groove is formed in the side wall of the second side plate, a limiting block is clamped in the limiting groove, and one end of the limiting block is connected with the right connecting plate.

[0014] Specifically, when the lifting is driven, the limiting block slides in the limiting groove, which can enhance the stability of the sealing assembly during lifting.

[0015] Preferably, the upper end of the drive shaft is provided with a filling structure, the filling structure comprises a communication pipe, an oil box, a plug, a first oil outlet groove, a through groove and a second oil outlet groove, the communication pipe is connected to the upper end surface of the drive shaft, the oil box is connected to the upper end surface of the communication pipe, the plug is clamped into the inlet end of the oil box, and the oil box and the communication pipe are arranged in the movable groove formed in the first side plate.

[0016] Preferably, the first oil outlet groove is arranged on the inner wall of the driving gear, the through groove and the second oil outlet groove are arranged on the inner wall of the driving shaft, the second oil outlet groove is arranged outside the through groove, and the first oil outlet groove and the second oil outlet groove are in communication.

[0017] By the above technical scheme:

[0018] After a period of detection, the plug is first held and pulled to open the oil box, lubricating oil is injected into the oil box from the inlet of the oil box, the lubricating oil flows into the through groove arranged in the driving shaft through the communication pipe, and finally flows to the connection between the driving gear and the gear belt through the second oil outlet groove and the first oil outlet groove. The operation can play a lubricating role, avoid the situation that the friction is large during driving and the sealing assembly is prone to lifting jamming due to the gradual loss of lubricating grease on the gear and the gear belt with the length of use, prevent the situation that the sealing assembly lifting position is not in place due to the in smooth lifting, and the situation that the detection box is not well sealed and the detection box is affected by opening and closing, ensure the lifting effect of the sealing assembly, and ensure the detection effect of the detection equipment.

[0019] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0020] 1. By arranging the lifting type sealing structure, the detection equipment has a lifting sealing function, the connection between the two housings after combination can be covered during use, the sealing property of the detection box is ensured, the air in the detection box is prevented from overflowing from the gap between the two housings to affect the detection due to poor sealing property of the detection box, in addition, when the air in the inner cavity of the detection box is extracted, the external air is prevented from entering the detection box through the gap to cause the air pressure value in the detection box to be inaccurate, the sealing effect of the environmental test chamber vacuum container can be accurately detected, and the detection effect of the detection equipment is ensured.

[0021] 2. By arranging the filling structure, the lifting type sealing structure has a lubricating oil filling function, after a period of use, the lubricating oil can be filled to the connection between the gear and the gear belt, the driving assembly can be lubricated, the situation that the friction is large during driving and the sealing assembly is prone to lifting jamming due to the gradual loss of lubricating grease on the gear and the gear belt with the length of use is avoided, the situation that the sealing assembly lifting position is not in place due to the in smooth lifting is prevented, and the situation that the detection box is not well sealed and the detection box is affected by opening and closing is prevented, the lifting effect of the sealing assembly is ensured, and the detection effect of the detection equipment is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the outer cover of the utility model being opened;

[0025] Figure 3 This is a schematic cross-sectional view of the first side panel of the present invention;

[0026] Figure 4 for Figure 3 A magnified schematic diagram of part A;

[0027] Figure 5 This is a schematic diagram of the sealing assembly of the present invention when it is raised;

[0028] Figure 6 This is a schematic diagram of the connection between the filling structure and the drive shaft of the utility model;

[0029] Figure 7 This is a schematic cross-sectional view of the driving gear of the present invention.

[0030] Description of reference numerals:

[0031] 1. Placement seat; 2. First outer cover; 3. Second outer cover; 4. Pressure detector; 5. Vacuum pump; 6. Exhaust pipe; 7. Inlet pump; 8. Inlet pipe; 9. First side panel; 10. Second side panel; 11. Lifting seal structure; 111. Outer frame; 112. Panel; 113. Sealing strip; 114. Embossed groove; 115. Connecting plate; 116. Cavity; 117. Block groove; 118. Threaded block; 119. Screw 1111, mounting box; 1112, forward and reverse motor; 1113, driving shaft; 1114, driving gear; 1115, driven gear; 1116, gear belt; 1117, limiting groove; 1118, limiting block; 12, electric telescopic rod; 13, filling structure; 131, connecting pipe; 132, oil box; 133, plug; 134, first oil outlet groove; 135, through groove; 136, second oil outlet groove. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] The utility model provides Figure 1 and Figure 2 The device shown is used for testing the sealing performance of a vacuum container in an environmental test chamber, comprising:

[0034] A placement seat 1 and a detection box, the detection box includes a first outer cover 2 and a second outer cover 3, a pressure detector 4 and a vacuum pump 5 are provided on the second outer cover 3, the vacuum pump 5 is provided on one side of the pressure detector 4, and the air inlet end of the vacuum pump 5 is connected to the air extraction pipe 6, an air intake pump 7 is provided on the first outer cover 2, the air outlet end of the air intake pump 7 is connected to the air intake pipe 8, the air intake end of the air extraction pipe 6 passes through and extends to the interior of the second outer cover 3, the air outlet end of the air intake pipe 8 passes through and extends to the interior of the first outer cover 2, and the outer side of the placement seat 1 is fixedly connected with a first side plate 9 and a second side plate 10.

[0035] Further, see Figure 2 As shown, the first outer cover 2 and the second outer cover 3 are slidably connected to the upper end of the placement seat 1, and the inner wall of the placement seat 1 is provided with a placement groove and a slide groove. The slide groove is provided on the outside of the placement groove, and an electric telescopic rod 12 is installed inside the placement groove. The lower end surfaces of the first outer cover 2 and the second outer cover 3 are symmetrically connected to two sliders, a cross plate is connected between the two sliders, the free end of the electric telescopic rod 12 is connected to the cross plate, and the slider is embedded in the inside of the slide groove.

[0036] Specifically, when in use, first, the electric telescopic rod 12 is retracted to drive the slider to move in the slide groove, so that the first outer cover 2 and the second outer cover 3 move outward, and the detection box is opened. Then, the vacuum container of the environmental test chamber to be tested is placed in the middle position of the upper end surface of the placement seat 1. Then, the electric telescopic rod 12 is extended, and the first outer cover 2 and the second outer cover 3 move toward the middle until they are in contact and fit together to form the detection box, and the inner cavity of the detection box forms a closed space. Then, the solenoid valve on the air inlet pipe 8 is opened, and air is delivered to the inner cavity of the detection box through the cooperation of the air inlet pump 7 and the air inlet pipe 8, so that the air pressure in the inner cavity of the detection box rises. When the air pressure rises to a certain intensity, the solenoid valve is closed, and the air pressure in the inner cavity of the detection box is detected by the pressure detector 4, and the air pressure intensity is recorded. If the air pressure drops, it means that the air in the inner cavity of the detection box enters the inner cavity of the vacuum container of the environmental test chamber. Then, by opening the solenoid valve on the exhaust pipe 6, the air in the inner cavity of the detection box is extracted by using the vacuum exhaust pump 5 and the exhaust pipe 6. The air pressure in the inner cavity of the detection box is detected by the pressure detector 4. If the air pressure rises, it means that the air in the inner cavity of the vacuum container of the environmental test chamber is leaking out. The above operation can complete the detection of the sealing of the vacuum container of the environmental test chamber.

[0037] The utility model provides Figure 3-Figure 5The figure shows a device for testing the sealing properties of vacuum containers in an environmental test chamber. A lifting sealing structure 11 is provided on the outside of the test box. The lifting sealing structure 11 includes an outer frame 111 provided on the outside of the test box. The inner wall of the outer frame 111 is fixedly connected to a panel 112. The outer wall of the panel 112 is symmetrically connected to two sealing strips 113. One side of the outer wall of the first outer cover 2 and the second outer cover 3 is provided with a groove 114 that is compatible with the panel 112. The outer side of the outer frame 111 is provided with a drive component for raising and lowering the outer frame 111.

[0038] The driving assembly includes a connecting plate 115 fixedly connected to the outer wall of the outer frame 111, and the inner wall of the first side plate 9 is respectively provided with a cavity 116 and a block groove 117, a threaded block 118 is embedded in the interior of the block groove 117, and a threaded rod 119 is connected to the interior of the block groove 117, the threaded block 118 is threadedly connected to the outside of the threaded rod 119, and the end of the threaded block 118 away from the block groove 117 is connected to the left connecting plate 115.

[0039] The lower end surface of the first side plate 9 is connected to the installation box 1111, and the forward and reverse motor 1112 is installed inside the installation box 1111. The output end of the forward and reverse motor 1112 is connected to the drive shaft 1113, and the drive shaft 1113 is connected to the inside of the cavity 116. The outer wall of the drive shaft 1113 is connected to the driving gear 1114, and the lower end surface of the threaded rod 119 is connected to the driven gear 1115. The driving gear 1114 and the driven gear 1115 are meshed with the outside of the gear belt 1116.

[0040] Through the above technical solution:

[0041] After the first outer cover 2 and the second outer cover 3 are in contact and fitted to form the detection box, the forward and reverse motor 1112 in the installation box 1111 is turned on, and the forward and reverse motor 1112 drives the driving shaft 1113 to rotate, and the driving gear 1114 rotates as the driving shaft 1113 rotates. At the same time, the driving gear 1114 cooperates with the gear belt 1116 to drive the driven gear 1115 to rotate, and the driven gear 1115 rotates to drive the threaded rod 119 to rotate. At the same time, the threaded block 118 is threadedly fitted with the threaded rod 119, and the threaded block 118 moves downward in the block groove 117, so that the outer frame 111 connected to it through the connecting plate 115 descends until it is tightly fitted with the placement seat 1, and the inlay plate 112 and the sealing strip 113 are accurately and tightly embedded in the inner part of the inlay groove 114. This operation can seal the connection between the first outer cover 2 and the second outer cover 3, ensuring the sealing of the detection box, and avoiding the disadvantage that the air in the detection box overflows from the gap at the connection of the two outer covers due to poor sealing of the detection box, resulting in the air pressure intensity in the detection box not reaching the detection value and affecting the detection. In addition, when extracting the air from the inner cavity of the detection box, it prevents external air from entering the detection box through the gap and causing the air pressure value in the detection box to be inaccurate, so that it can accurately detect the sealing effect of the vacuum container of the environmental test chamber and ensure the detection effect of the detection equipment. In addition, after the detection, the driving shaft 1113 can be driven in reverse according to the above operation to move the sealing assembly to the highest point to prevent obstruction when opening the detection box and not affect the taking and placing operation of the vacuum container of the environmental test chamber.

[0042] Further, see Figure 3 As shown, a limiting groove 1117 is formed on the side wall of the second side plate 10 , and a limiting block 1118 is embedded in the limiting groove 1117 . One end of the limiting block 1118 is connected to the right connecting plate 115 .

[0043] Specifically, when driving the lifting, the limiting block 1118 slides in the limiting groove 1117, which can enhance the stability of the sealing assembly during lifting.

[0044] The utility model provides Figure 4 、 Figure 6 and Figure 7 The figure shows a device for detecting the sealing performance of a vacuum container in an environmental test chamber. A filling structure 13 is provided at the upper end of a driving shaft 1113. The filling structure 13 includes a connecting pipe 131, an oil box 132, a plug 133, a first oil outlet groove 134, a through groove 135 and a second oil outlet groove 136. The connecting pipe 131 is connected to the upper end face of the driving shaft 1113, the oil box 132 is connected to the upper end face of the connecting pipe 131, the plug 133 is inserted into the inlet end of the oil box 132, and the oil box 132 and the connecting pipe 131 are arranged inside the movable groove opened in the first side plate 9.

[0045] The first oil outlet groove 134 is arranged on the inner wall of the driving gear 1114, the through groove 135 and the second oil outlet groove 136 are arranged on the inner wall of the driving shaft 1113, the second oil outlet groove 136 is arranged outside the through groove 135, and the first oil outlet groove 134 is in communication with the second oil outlet groove 136.

[0046] Through the above technical scheme:

[0047] After a period of detection, first, the hand-held and pull the plug 133, open the oil box 132, lubricating oil from the oil box 132 into the oil box 132, lubricating oil through the communication pipe 131 into the driving shaft 1113 through groove 135, and finally through the second oil outlet groove 136 and the first oil outlet groove 134 to the driving gear 1114 and the gear belt 1116 connection, the operation can play a lubricating effect, avoid with the use of long gradually lost on the gear and gear belt 1116 of the lubricating grease and lead to drive friction large prone to sealing assembly lifting jamming situation, also prevent the sealing assembly lifting position due to not in place due to lifting not smooth and lead to the detection box poor sealing and affect the detection box open and close the drawbacks, ensure the sealing assembly lifting effect, ensure the detection effect of the detection equipment.

[0048] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above description and drawings are illustrative in nature and should not be construed as limiting the scope of protection claimed by the present application.

Claims

1. A device for detecting the sealing performance of a vacuum container in an environmental test chamber, characterized in that: include: A placement seat (1) and a detection box, wherein the detection box comprises a first outer cover (2) and a second outer cover (3), a lifting sealing structure (11) is provided on the outer side of the detection box, a pressure detector (4) and a vacuum pump (5) are provided on the second outer cover (3), the vacuum pump (5) is provided on one side of the pressure detector (4), and the air inlet end of the vacuum pump (5) is connected to an air extraction pipe (6), the first outer cover (2) is provided with an air intake pump (7), and the air outlet end of the air intake pump (7) is connected to an air intake pipe (8), and the outer side of the placement seat (1) is fixedly connected to a first side plate (9) and a second side plate (10); The lifting sealing structure (11) comprises an outer frame (111) arranged on the outside of the detection box, an inner side wall of the outer frame (111) is fixedly connected to a panel (112), an outer side wall of the panel (112) is symmetrically connected to two sealing strips (113), an outer side wall of the first outer cover (2) and the second outer cover (3) is provided with a groove (114) adapted to the panel (112), and a driving component for lifting the outer frame (111) is provided on the outer side of the outer frame (111).

2. The equipment for detecting the sealing performance of a vacuum container in an environmental test chamber according to claim 1, characterized in that: The driving assembly includes a connecting plate (115) fixedly connected to the outer wall of the outer frame (111); the inner wall of the first side plate (9) is respectively provided with a cavity (116) and a block groove (117); a threaded block (118) is embedded in the interior of the block groove (117); and a threaded rod (119) is connected to the interior of the block groove (117); the threaded block (118) is threadedly connected to the outside of the threaded rod (119); and the end of the threaded block (118) away from the block groove (117) is connected to the left connecting plate (115).

3. The equipment for detecting the sealing performance of a vacuum container in an environmental test chamber according to claim 2, characterized in that: The lower end surface of the first side plate (9) is connected to a mounting box (1111), a forward and reverse motor (1112) is installed inside the mounting box (1111), an output end of the forward and reverse motor (1112) is connected to a driving shaft (1113), the driving shaft (1113) is connected to the inside of the cavity (116), and the outer wall of the driving shaft (1113) is connected to a driving gear (1114), the lower end surface of the threaded rod (119) is connected to a driven gear (1115), and a gear belt (1116) is meshed with the outside of the driving gear (1114) and the driven gear (1115).

4. The equipment for detecting the sealing performance of a vacuum container in an environmental test chamber according to claim 1, characterized in that: A limiting groove (1117) is provided on the side wall of the second side plate (10), a limiting block (1118) is embedded in the limiting groove (1117), and one end of the limiting block (1118) is connected to the right connecting plate (115).

5. The equipment for detecting the sealing performance of a vacuum container in an environmental test chamber according to claim 3, characterized in that: The upper end of the driving shaft (1113) is provided with a filling structure (13), and the filling structure (13) comprises a connecting pipe (131), an oil box (132), a plug (133), a first oil outlet groove (134), a through groove (135) and a second oil outlet groove (136). The connecting pipe (131) is connected to the upper end surface of the driving shaft (1113), the oil box (132) is connected to the upper end surface of the connecting pipe (131), the plug (133) is plugged into the inlet end of the oil box (132), and the oil box (132) and the connecting pipe (131) are arranged inside a movable groove opened on the first side plate (9).

6. The equipment for detecting the sealing performance of a vacuum container in an environmental test chamber according to claim 5, characterized in that: The first oil outlet groove (134) is provided on the inner wall of the driving gear (1114), the through groove (135) and the second oil outlet groove (136) are provided on the inner wall of the driving shaft (1113), the second oil outlet groove (136) is provided on the outer side of the through groove (135), and the first oil outlet groove (134) and the second oil outlet groove (136) are connected.

7. The equipment for detecting the sealing performance of a vacuum container in an environmental test chamber according to claim 1, characterized in that: The first outer cover (2) and the second outer cover (3) are slidably connected to the upper end of the placement seat (1); the inner wall of the placement seat (1) is provided with a placement groove and a slide groove; the slide groove is provided on the outside of the placement groove; an electric telescopic rod (12) is installed inside the placement groove; the lower end surfaces of the first outer cover (2) and the second outer cover (3) are symmetrically connected to two sliders; a horizontal plate is connected between the two sliders; the free end of the electric telescopic rod (12) is connected to the horizontal plate; the slider is embedded in the inside of the slide groove.

8. The equipment for detecting the sealing performance of a vacuum container in an environmental test chamber according to claim 1, characterized in that: The air intake end of the air extraction pipe (6) passes through and extends to the interior of the second outer cover (3), and the air outlet end of the air intake pipe (8) passes through and extends to the interior of the first outer cover (2).

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