Device for detecting sealing performance of cover body

Abstract

The utility model provides a cover body sealing performance detection device, and relates to the technical field of cover body detection. The cover body sealing performance detection device comprises a bearing seat, a liquid injection assembly and a pressing and fixing piece. A plurality of detection parts are arranged on the bearing seat, a liquid injection opening is formed in each detection part, the detection parts are used for supporting a groove-shaped cover body covering the liquid injection openings, and the detection parts and the edge of a groove opening of the cover body are arranged in a sealed mode; a plurality of liquid injection ports of the liquid injection assembly communicate with the liquid outlet and are used for supplying detection liquid with preset pressure to the inner space of the cover body; the pressing and fixing piece is used for abutting against one side of the groove bottom of the cover body at the multiple detection parts and applying pressure larger than preset pressure to the cover body. According to the detection device, detection liquid with pressure can be supplied to the cover bodies at the multiple detection parts at the same time through mutual cooperation of the liquid injection assembly and the pressing and fixing piece, so that the sealing performance of the cover bodies is judged according to whether liquid exudes from the cover bodies or not, the detection efficiency can be improved, and the cover bodies cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of cover body detection, in particular to a cover body sealing detection device. Background Art

[0002] The large infusion injection process is usually an infusion process of injecting liquid medicine and other liquids with a volume greater than or equal to 50 ml into the body. To ensure the safety of the liquid medicine, the container for holding the liquid medicine needs to use a well-sealed combined cover.

[0003] Among them, the combined cover includes an inner cover, an outer cover covering the outer side of the inner cover, and a sealing gasket fitted between the inner cover and the outer cover. The inner cover, the outer cover, and the sealing gasket usually need to be produced separately, and then assembled to form a combined cover after production. To ensure the sealing performance of the combined cover, after the outer cover is produced, the sealing performance of the outer cover needs to be detected separately.

[0004] The existing outer cover sealing detection methods are either the color water method or the high-voltage discharge method. The color water method means placing the grooved outer cover with the groove facing up in the color water, and by observing whether the color water enters the space inside the groove of the outer cover, it can be judged whether the outer cover leaks. However, research has shown that although theoretically water molecules can pass through when encountering a leakage hole of 5 μm, in practice, when water molecules encounter a micro-hole of 5 μm, it is difficult for the human eye to observe the infiltration of the liquid, so it is easy to produce misjudgment. Therefore, the high-voltage discharge method is more widely used.

[0005] The high-voltage discharge method means using a set of electrode probes to scan the outer cover. If there are pinholes, cracks or other defects on the outer cover, there will be resistance differences and current differences, indicating that the outer cover has leakage, and the defect location can be identified.

[0006] However, the high-voltage discharge instrument usually only includes a set of electrode probes, and only one outer cover can be detected in a single operation, with low detection efficiency, which is not suitable for multi-sample sampling inspection in the large-scale production process of outer covers. Moreover, after high-voltage discharge, the outer cover is usually easily punctured and damaged. Therefore, the high-voltage discharge method is a destructive test and cannot be used to repeatedly detect the outer cover to reduce detection errors. Content of the Utility Model

[0007] The purpose of the utility model is to provide a cover body sealing detection device to alleviate the technical problems existing in the prior art that the sealing detection of the outer cover in the combined cover of the liquid medicine container usually adopts the high-voltage discharge method, but the high-voltage discharge instrument only includes a set of electrode probes, only one outer cover can be detected in a single operation, with low detection efficiency, which is not suitable for multi-sample sampling inspection in the large-scale production process of outer covers, and the high-voltage discharge method is a destructive test and cannot be used to repeatedly detect the outer cover to reduce detection errors.

[0008] In a first aspect, the utility model provides a cover body sealing detection device, including a receiving seat, a liquid injection assembly, and a pressing member;

[0009] A plurality of detection parts are provided on the receiving seat, a liquid injection port is provided at each detection part, the detection part is used to support a trough-shaped cover body sleeved outside the liquid injection port, and a sealing is arranged between the detection part and the edge of the trough opening of the cover body;

[0010] The liquid injection assembly includes a liquid outlet, and a plurality of the liquid injection ports are communicated with the liquid outlet. The liquid injection assembly is used to supply a detection liquid with a preset pressure to the internal space of the cover body through the liquid outlet and the liquid injection ports;

[0011] The pressing member is used to abut against one side of the trough bottom of the cover body at a plurality of the detection parts, and apply a pressure greater than the preset pressure to the cover body.

[0012] In an alternative embodiment, the pressing member is plate-shaped, the pressing member is arranged on one side of the receiving seat where the detection part is provided, and is opposite to the receiving seat in position.

[0013] In an alternative embodiment, a driving assembly is further included. The output end of the driving assembly is connected to the pressing member and is used to drive the pressing member to move closer to or away from the receiving seat.

[0014] In an alternative embodiment, a bracket is further included. The driving assembly is fixed on the bracket, the receiving seat is movably connected to the bracket, and the receiving seat can move relative to the pressing member on a horizontal plane to be exposed outside the pressing member or be opposite to the pressing member in position.

[0015] In an alternative embodiment, the receiving seat is rotatably connected to the bracket through a rotating shaft, and the receiving seat can be exposed outside the pressing member or be opposite to the pressing member in position during the rotation process.

[0016] In an alternative embodiment, a limiting hook is provided on the receiving seat, a positioning shaft adapted to the limiting hook is provided on the bracket, and the limiting hook is used to hook on the positioning shaft when the receiving seat rotates to be opposite to the pressing member in position to limit the receiving seat from continuing to rotate.

[0017] In an alternative embodiment, a circular observation port is provided at a part of the pressing member opposite to the detection part, and the diameter of the observation port is smaller than the maximum outer diameter of the cover body on the detection part.

[0018] In an alternative embodiment, a boss is provided at the detection part, a water inlet hole communicated with the liquid injection port is provided on the boss, and the boss is used to extend into the interior of the cover body at the detection part.

[0019] In an optional embodiment, a sealing ring is disposed on the outer sleeve of the boss, and the sealing ring is used to abut between a receiving seat on the peripheral side of the boss and a groove of the cover body outside the boss.

[0020] In an optional embodiment, the boss is cylindrical, and the outer diameter of the boss is smaller than the minimum inner diameter of the cover body, and the outer diameter of the sealing ring is larger than the maximum outer diameter of the cover body.

[0021] The cover body sealing detection device provided by the utility model includes a receiving seat, a liquid injection assembly and a pressure piece; the receiving seat is provided with a plurality of detection parts, each detection part is provided with a liquid injection port, the detection part is used to support the groove-shaped cover body provided outside the liquid injection port, and the detection part is sealed with the edge of the groove of the cover body; the liquid injection assembly includes a liquid outlet, and the plurality of liquid injection ports are connected with the liquid outlet, and the liquid injection assembly is used to supply the detection liquid with a preset pressure to the internal space of the cover body through the liquid outlet and the liquid injection port; the pressure piece is used to abut against one side of the groove bottom of the cover body on the plurality of detection parts, and apply a pressure greater than the preset pressure to the cover body. The cover body sealing detection device provided by the utility model can detect the sealing of the groove-shaped cover body, and specifically, the groove-shaped cover body can be the outer cover of the combined cover for containers such as liquid medicine and nutrient solution. During the detection process, a batch of cover bodies to be detected can be first buckled and covered correspondingly on the multiple detection parts on the receiving seat, and the cover body cover is arranged outside the liquid injection port, and then the pressure piece is abutted against one side of the groove bottom of the multiple cover bodies, and pressure is applied to the multiple cover bodies through the pressure piece, so that the multiple cover bodies are stably fixed on the receiving seat. The pressure applied by the pressure piece can also achieve the sealing between the groove edge of the cover body and the detection part. Then the liquid injection component can be started, so that the liquid injection component can simultaneously supply the detection liquid with a preset pressure to the groove space of the multiple cover bodies through the liquid outlet and the liquid injection port. The detection liquid is such as pure water. Since the pressure applied by the pressure piece on the cover body is greater than the preset pressure of the detection liquid, the cover body will not be separated from the detection part under the action of the hydraulic pressure during the process of the liquid injection component supplying the detection liquid, and the stability of the space formed between the cover body and the detection part can be guaranteed. Furthermore, due to the sealing arrangement between the notch edge of the cover body and the detection part, after the detection liquid enters the interior of the cover body, it will not flow out along the gap between the cover body and the detection part. At this time, if there are pinholes, cracks or other defects on the cover body, the detection liquid can only leak out of the cover body through the pinholes, cracks and other defects under the action of hydraulic pressure. If there are no pinholes, cracks and other defects on the cover body, the detection liquid will stay inside the cover body and will not leak out of the cover body. Based on this, after the injection component simultaneously supplies the detection liquid to the interior of multiple cover bodies, the sealing of the cover body can be determined by judging whether there is leakage liquid on the outer wall of each cover body. Specifically, if there is leakage liquid on the outer wall of the cover body, it indicates that the sealing of the cover body is unqualified, otherwise it indicates that the sealing of the cover body is qualified.

[0022] Compared with the prior art, the cover sealability detection device provided by the utility model can supply detection liquid with a preset pressure to the covers at multiple detection parts simultaneously through the cooperation of the liquid injection component and the pressing component. Furthermore, the sealability of the cover can be judged by determining whether the detection liquid leaks out of the outer wall of the cover. It can not only detect the sealability of multiple covers simultaneously to improve the detection efficiency, but also will not damage the cover during the detection process, which is convenient for repeated detection of the cover to reduce the detection error. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 FIG. 1 is a schematic structural diagram of the cover sealability detection device provided by the embodiment of the present utility model;

[0025] Figure 2 FIG. 2 Figure 1 is a partial structural diagram of the cover sealability detection device in FIG. 1;

[0026] Figure 3 FIG. 3 is another schematic structural diagram of the cover sealability detection device provided by the embodiment of the present utility model;

[0027] Figure 4 FIG. 4 Figure 2 is a partial structural diagram of the cover sealability detection device in FIG. 3.

[0028] Reference numerals: 1 - receiving seat; 10 - boss; 100 - water inlet hole; 2 - liquid injection component; 3 - pressing component; 30 - observation port; 4 - driving component; 5 - bracket; 50 - support table; 51 - support vertical rod; 6 - sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Accordingly, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0031] The following will describe in detail some embodiments of the present utility model with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0032] Embodiment:

[0033] As Figures 1 - 4 shown, the cover body sealing performance detection device provided in this embodiment includes a receiving seat 1, a liquid injection assembly 2, and a pressing member 3; a plurality of detection parts are provided on the receiving seat 1, and a liquid injection port is provided at each detection part. The detection part is used to support the trough-shaped cover body covering outside the liquid injection port, and a sealing is provided between the detection part and the edge of the trough opening of the cover body; the liquid injection assembly 2 includes a liquid outlet, and a plurality of liquid injection ports are all communicated with the liquid outlet. The liquid injection assembly 2 is used to supply a detection liquid with a preset pressure to the internal space of the cover body through the liquid outlet and the liquid injection port; the pressing member 3 is used to abut against the bottom side of the trough of the cover bodies on the plurality of detection parts and apply a pressure greater than the preset pressure to the cover bodies.

[0034] The cover body sealing performance detection device provided in this embodiment can detect the sealing performance of the trough-shaped cover body. Specifically, the trough-shaped cover body can be the outer cover in a combined cover for containers such as medicine liquid and nutrient solution.

[0035] During the detection process, a batch of cover bodies to be detected can be correspondingly buckled on the plurality of detection parts on the receiving seat 1 first, and the cover bodies are made to cover outside the liquid injection ports. Then, the pressing member 3 is abutted against the bottom side of the troughs of the plurality of cover bodies, and a pressure is applied to the plurality of cover bodies through the pressing member 3, so as to stably fix the plurality of cover bodies on the receiving seat 1. Through the pressure applied by the pressing member 3, the sealing between the edge of the trough opening of the cover body and the detection part can also be achieved.

[0036] Subsequently, the liquid injection assembly 2 can be activated, enabling the liquid injection assembly 2 to simultaneously supply a detection liquid with a preset pressure to the inner spaces of the grooves of multiple caps through the liquid outlet and the liquid injection port. Here, the detection liquid can be, for example, pure water or colored water; there is no limit to the pressure value of the preset pressure, as long as it can meet the detection requirements; the liquid injection assembly 2 can include a liquid pump for supplying the detection liquid. Since the pressure exerted by the pressing member 3 on the cap is greater than the preset pressure of the detection liquid, during the process of the liquid injection assembly 2 supplying the detection liquid, the cap will not be separated from the detection part under the hydraulic action, and the stability of the space formed between the cap and the detection part can be ensured. Also, because the edge of the groove opening of the cap is hermetically arranged with the detection part, after the detection liquid enters the interior of the cap, it will not flow out along the gap between the cap and the detection part. At this time, if there are pinholes, cracks or other defects on the cap, the detection liquid can only leak to the outside of the cap through the above-mentioned pinholes, cracks and other defects under the hydraulic action. If there are no pinholes, cracks and other defects on the cap, the detection liquid will stay inside the cap and will not leak to the outside of the cap.

[0037] Based on this, after the liquid injection assembly 2 simultaneously supplies the detection liquid to the interiors of multiple caps, the tightness of the caps can be determined by judging whether there is any leaking liquid on the outer wall of each cap. Specifically, if there is leaking liquid on the outer wall of the cap, it indicates that the tightness of the cap is unqualified; otherwise, it indicates that the tightness of the cap is qualified.

[0038] Compared with the prior art, the cap tightness detection device provided in this embodiment can simultaneously supply a detection liquid with a preset pressure to the caps at multiple detection parts through the mutual cooperation of the liquid injection assembly 2 and the pressing member 3. Furthermore, the tightness of the caps can be determined by judging whether the detection liquid seeps out from the outer wall of the caps. It can not only detect the tightness of multiple caps simultaneously, improving the detection efficiency, but also will not damage the caps during the detection process, facilitating repeated detection of the caps to reduce the detection error.

[0039] It should be noted that although the cap can still be repeatedly detected multiple times when the detection liquid is colored water, since the colored water will adhere to the cap after the detection is completed, the cap cannot meet the product requirements of the combined cap in the infusion container and cannot be recycled and reused for assembling the combined cap. Therefore, to enable the cap to be recycled and reused, this embodiment preferably uses pure water as the detection liquid.

[0040] It can be seen that the cap tightness detection device provided in this embodiment detects the tightness of caps such as outer caps by the water pressure method. Compared with the colored water method, it has less pollution and higher reliability; compared with the high-voltage discharge method, it can achieve single-batch detection, has high detection efficiency, is suitable for multi-sample spot checks during the large-scale production of caps, and will not damage the caps, enabling repeated detection and recycling of the caps.

[0041] In addition, for the lid airtightness detection device provided in this embodiment, after the lid is placed on the detection part, the pressing member 3 applies pressure to the lid and the liquid injection assembly 2 is started to realize the lid airtightness detection process. Compared with the existing instruments for high-voltage discharge, the lid airtightness detection device is more convenient and fast to operate.

[0042] As Figure 2 and Figure 4 shown, the pressing member 3 is plate-shaped, and the pressing member 3 is arranged on the side of the receiving seat 1 where the detection part is located, and is opposite to the receiving seat 1 in position.

[0043] When the pressing member 3 is plate-shaped, not only can the structure of the pressing member 3 be simplified, but also the area of the pressing member 3 can be enlarged, thereby improving the pressure application effect of the pressing member 3 on multiple lids.

[0044] To facilitate the stable support of multiple lids, the receiving seat 1 in this embodiment is horizontally arranged. Based on this, when the pressing member 3 is arranged on the side of the receiving seat 1 where the detection part is located, the pressing member 3 is located above the receiving seat 1. At this time, the pressing member 3 is opposite to the receiving seat 1 in position, so that the process of applying pressure to multiple lids by the pressing member 3 and the process of the pressing member 3 moving away from the receiving seat 1 can be realized by lifting and lowering the pressing member 3, thereby effectively simplifying the moving process and operation process of the pressing member 3.

[0045] As Figure 2 and Figure 4 shown, the lid airtightness detection device provided in this embodiment further includes a driving component 4. The output end of the driving component 4 is connected to the pressing member 3 and is used to drive the pressing member 3 to move closer to or away from the receiving seat 1.

[0046] The driving component 4 can adopt telescopic drivers such as air cylinders and oil cylinders. When the driving component 4 extends, it can drive the pressing member 3 to approach the receiving seat 1, thereby realizing the abutting and pressing process between the pressing member 3 and the lid; when the driving component 4 shortens, it can drive the pressing member 3 to move away from the receiving seat 1, thereby facilitating the removal of the lid from the detection part after the detection is completed.

[0047] Compared with the method of manually driving the pressing member 3 to move and manually driving the pressing member 3 to press the lid, the driving component 4 can not only improve the detection efficiency, reduce the manual labor intensity, but also effectively ensure the reliability of the process of the pressing member 3 pressing the lid, thereby reducing the detection error.

[0048] Furthermore, the lid airtightness detection device provided in this embodiment further includes a bracket 5. The driving component 4 is fixed on the bracket 5, and the receiving seat 1 is movably connected to the bracket 5, and the receiving seat 1 can move relative to the pressing member 3 on the horizontal plane and be exposed outside the pressing member 3 or be opposite to the pressing member 3 in position.

[0049] Specifically, as Figure 3As shown, a horizontal support platform 50 may be provided on the support bracket 5, and the receiving seat 1 is movably connected to the support platform 50; support vertical rods 51 may be respectively provided on both sides of the support platform 50, the driving assembly 4 is fixed to the support vertical rods 51, and the pressing member 3 is fixed to the output end of the driving assembly 4 and the pressing member 3 is located above the receiving seat 1. Correspondingly, when the receiving seat 1 moves to be exposed outside the pressing member 3, the projection of the receiving seat 1 on the horizontal plane where the pressing member 3 is located is staggered with the pressing member 3; when the receiving seat 1 moves to a position opposite to the pressing member 3, the projection of the receiving seat 1 on the horizontal plane where the pressing member 3 is located coincides with the pressing member 3.

[0050] As Figures 1 - 4 shown, when the receiving seat 1 moves relative to the pressing member 3 on the horizontal plane to be exposed outside the pressing member 3, a plurality of detection parts on the receiving seat 1 can be exposed, so as to facilitate placing a plurality of covers corresponding on the plurality of detection parts. After placing the plurality of covers in place, the receiving seat 1 can be moved relative to the pressing member 3 on the horizontal plane to a position opposite to the pressing member 3. At this time, the pressing member 3 is located above the plurality of covers on the receiving seat 1, which is convenient for subsequently driving the pressing member 3 to descend through the driving assembly 4 so that the pressing member 3 presses on the plurality of covers.

[0051] It should be noted that the receiving seat 1 is movably connected to the support bracket 5, which is not only convenient for switching the position of the receiving seat 1 to realize the process of placing the cover and the process of pressing the cover, but also can limit the moving range of the receiving seat 1 through the support bracket 5 to prevent the receiving seat 1 from being misaligned with the pressing member 3 after moving, resulting in some covers not being pressed by the pressing member 3.

[0052] Among them, the movable connection method between the receiving seat 1 and the support bracket 5 can be a sliding connection or a rotational connection.

[0053] When the receiving seat 1 is slidably connected to the support bracket 5, a slide rail extending in the horizontal direction may be provided on the support bracket 5, and the receiving seat 1 is slidably connected to the support bracket 5 through the slide rail. At this time, the process of the receiving seat 1 moving relative to the pressing member 3 can also be realized by pulling and moving the receiving seat 1 on the slide rail.

[0054] When the receiving seat 1 is rotationally connected to the support bracket 5, the receiving seat 1 can be rotationally connected to the support bracket 5 through a rotating shaft, and the receiving seat 1 can be exposed outside the pressing member 3 or in a position opposite to the pressing member 3 during the rotation process.

[0055] Among them, the rotating shaft is perpendicular to the horizontal plane. To make the plurality of detection parts on the receiving seat 1 easy to be simultaneously exposed outside the pressing member 3, when the receiving seat 1 is a polygonal plate-like structure, in this embodiment, it is preferred that the rotating shaft is connected to a position of the receiving seat 1 close to its corner; when the receiving seat 1 is a circular plate-like structure, in this embodiment, it is preferred that the rotating shaft is connected to a position of the receiving seat 1 close to its edge.

[0056] Further, when the receiving seat 1 is rotatably connected to the bracket 5, a limiting hook can be provided on the receiving seat 1, and a positioning shaft adapted to the limiting hook is provided on the bracket 5. The limiting hook is used to hook on the positioning shaft when the receiving seat 1 rotates to a position opposite to the pressing member 3, so as to limit the continuous rotation of the receiving seat 1.

[0057] It can be seen that the cooperation between the limiting hook and the positioning shaft can make the process of moving the receiving seat 1 to a position opposite to the pressing member 3 easier to achieve, thereby effectively improving the use effect of the cover body sealing detection device.

[0058] Correspondingly, when the receiving seat 1 is slidably connected to the bracket 5, a limiting baffle can be provided on the bracket 5 to mark the sliding end point of the receiving seat 1, which can also make the process of moving the receiving seat 1 to a position opposite to the pressing member 3 easier to achieve.

[0059] To prevent the pressing member 3 from affecting the detection personnel's observation of whether there is detection liquid leaking outside the cover body, the material of the pressing member 3 can be selected as a colorless and transparent material.

[0060] Or, as Figures 1 - 4 shown, a circular observation port 30 is provided at the part of the pressing member 3 opposite to the detection part, and the diameter of the observation port 30 is smaller than the maximum outer diameter of the cover body on the detection part.

[0061] The observation port 30 is also convenient for the detection personnel to observe whether there is detection liquid leaking outside the cover body, so as to facilitate the judgment of the cover body sealing performance.

[0062] And the diameter of the observation port 30 is smaller than the maximum outer diameter of the cover body on the detection part, which can prevent the cover body from completely entering the observation port 30 and causing the pressing member 3 to be unable to press the cover body.

[0063] To improve the position stability of the cover body at the detection part, a recess adapted to the cover body can be provided at the detection part.

[0064] However, since the recess will affect the line of sight of the detection personnel and make it difficult for the detection personnel to observe the liquid leakage situation outside the cover body, thus as Figures 1 - 4 shown, in this embodiment, it is preferably that a boss 10 is provided at the detection part, and a water inlet hole 100 communicating with the liquid injection port is provided on the boss 10. The boss 10 is used to extend into the inside of the cover body at the detection part.

[0065] When the cover body is placed at the detection part, the cover body can be directly covered outside the boss 10. Since the water inlet hole 100 communicating with the liquid injection port is provided on the boss 10, the cover body covered outside the boss 10 will also cover outside the liquid injection port. When the detection liquid flows from the liquid supply port to the liquid injection port, the detection liquid will continue to flow and enter the space between the boss 10 and the cover body through the water inlet hole 100.

[0066] It should be noted that when the cover body covers the outside of the boss 10, that is, when the boss 10 extends into the interior of the cover body, the boss 10 will play a limiting role on the cover body, effectively improving the position stability of the cover body at the detection part.

[0067] Furthermore, as Figure 4 shown, a sealing ring 6 can be sleeved outside the boss 10, and the sealing ring 6 is used to abut between the receiving seat 1 on the circumferential side of the boss 10 and the notch of the cover body outside the boss 10.

[0068] The sealing ring 6 can be made of sealing materials such as silica gel and rubber. When the cover body covers the outside of the boss 10, the sealing ring 6 will abut between the receiving seat 1 on the circumferential side of the boss 10 and the notch of the cover body outside the boss 10. After the pressing member 3 presses the cover body, the sealing ring 6 can effectively play a sealing role to prevent the detection liquid in the cover body from flowing out of the cover body through the gap between the cover body and the detection part.

[0069] Among them, the boss 10 can be cylindrical, and the outer diameter of the boss 10 is smaller than the minimum inner diameter of the cover body, and the outer diameter of the sealing ring 6 is larger than the maximum outer diameter of the cover body.

[0070] When the outer diameter of the boss 10 is smaller than the minimum inner diameter of the cover body, there is a gap between the outer circumferential wall of the boss 10 and the inner circumferential wall of the cover body. When the detection liquid enters the cover body, the detection liquid can fill the gap, so as to perform a sealing detection on the circumferential side wall of the cover body, effectively improving the detection effect and detection accuracy.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cover body sealing performance detection device, characterized in that It includes a receiving seat, a liquid injection assembly and a pressing member; A plurality of detection parts are provided on the receiving seat, and a liquid injection port is provided at each detection part. The detection part is used to support a trough-shaped cover body covering outside the liquid injection port, and a sealed setting is provided between the detection part and the edge of the trough opening of the cover body; The liquid injection assembly includes a liquid outlet, and a plurality of the liquid injection ports are all communicated with the liquid outlet. The liquid injection assembly is used to supply detection liquid with a preset pressure to the internal space of the cover body through the liquid outlet and the liquid injection port; The pressing member is used to abut against one side of the trough bottom of the cover body at a plurality of the detection parts, and apply a pressure greater than the preset pressure to the cover body.

2. The cover sealability detection device according to claim 1, characterized in that, The pressing member is plate-shaped, and the pressing member is arranged on one side of the receiving seat where the detection part is provided, and is opposite to the receiving seat in position.

3. The cover body airtightness detection device according to claim 2, characterized in that, It further includes a driving assembly, and an output end of the driving assembly is connected to the pressing member, and is used to drive the pressing member to move closer to or away from the receiving seat.

4. The cover body sealing performance detection device according to claim 3, characterized in that, It further includes a bracket, the driving assembly is fixed on the bracket, the receiving seat is movably connected to the bracket, and the receiving seat can move relative to the pressing member on a horizontal plane and be exposed outside the pressing member or be opposite to the pressing member in position.

5. The cover sealability detection device according to claim 4, characterized in that, The receiving seat is rotationally connected to the bracket through a rotating shaft, and the receiving seat can be exposed outside the pressing member or be opposite to the pressing member in position during the rotation process.

6. The cover body airtightness detection device according to claim 5, wherein A limiting hook is provided on the receiving seat, and a positioning shaft adapted to the limiting hook is provided on the bracket. The limiting hook is used to hook on the positioning shaft when the receiving seat rotates to be opposite to the pressing member in position, so as to limit the receiving seat from continuing to rotate.

7. The cover sealability detection device according to any one of claims 1-6, characterized in that, A circular observation port is provided at a part of the pressing member opposite to the detection part, and the diameter of the observation port is smaller than the maximum outer diameter of the cover body on the detection part.

8. The cover body sealing performance detection device according to any one of claims 1-6, characterized in that, A convex platform is provided at the detection part, and a water inlet hole communicated with the liquid injection port is provided on the convex platform. The convex platform is used to extend into the inside of the cover body at the detection part.

9. The lid sealability detection device according to claim 8, wherein, A sealing ring is sleeved outside the convex platform, and the sealing ring is used to abut between the receiving seat on the peripheral side of the convex platform and the trough opening of the cover body outside the convex platform.

10. The cover body sealing performance detection device according to claim 9, characterized in that, The convex platform is cylindrical, and the outer diameter of the convex platform is smaller than the minimum inner diameter of the cover body, and the outer diameter of the sealing ring is larger than the maximum outer diameter of the cover body.

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