Tightening device and airtightness testing device

Abstract

The utility model discloses a tightening device and an airtightness testing device.The tightening device comprises a bottom plate, a fixing piece and a profiling die, the fixing piece is arranged on the bottom plate and used for fastening a panel connected with a cable gland, the profiling die is arranged on the bottom plate, a fixing groove and a through hole are formed in the profiling die, the through hole is located in the fixing groove, and the fixing piece is arranged on the bottom plate; the fixing groove is used for fixing a double-thread connecting piece on the cable gland; the panel is located on the side, away from the bottom plate, of the profiling mold. According to the scheme, the fixing and assembling time is effectively saved, and convenience is brought to installation.

Description

Technical Field

[0001] The present application relates to the field of mechanical engineering technology, and in particular to a tightening device and an airtightness testing device. Background Art

[0002] With the continuous improvement of living standards and the enhancement of awareness of energy conservation and emission reduction, more and more people use electric vehicles for travel, which are convenient, energy-saving and environmentally friendly. In the field of electric vehicles, the core system includes high-voltage boxes, control boxes and battery packs, which constitute the core power system of electric vehicles.

[0003] In the related art, when the high-voltage box is subjected to an airtightness test, the assembly time of the cable gland on the high-voltage box is long. Utility Model Content

[0004] In view of the above problems, the present application provides a tightening device and an airtightness testing device, which can solve the problem of long assembly time of the cable gland on the high-pressure box.

[0005] In order to solve the above technical problems, in the first aspect, the present application proposes a tightening device, comprising:

[0006] Base plate;

[0007] A fixing member, the fixing member is arranged on the bottom plate and is used to fasten a panel connected to the cable gland, the panel being configured to be mounted on the high-voltage box;

[0008] A profiling mold, the profiling mold is arranged on the bottom plate, a fixing groove and a through hole are arranged on the profiling mold, the through hole is located in the fixing groove, and the fixing groove is used to fix the double-threaded connector on the cable gland; the panel is located on the side of the profiling mold away from the bottom plate;

[0009] A shell is connected to the second threaded section on the double-threaded connector.

[0010] In the technical solution of the embodiment of the present application, the double-threaded connector on the gland is placed into the fixing groove in the profiling mold, and then the back of the panel is placed on the profiling mold. At this time, the first thread segment on the double-threaded connector is located outside after passing through the mounting hole on the panel, the second thread segment on the double-threaded connector is located in the corresponding through hole, and the outer hexagonal protrusion on the double-threaded connector is located in the corresponding fixing groove. Then the panel is fixed by the fixing member, and finally the nut on the gland is connected to the corresponding first thread segment. The overall device can quickly fix the panel through the cooperation of the fixing member and the base plate, without the need for additional manual fixing of the panel. Moreover, the double-threaded connector can be fixed in the fixing groove when connected, so that the panel connected to the gland is easy to be installed on the high-voltage box, which effectively saves the fixing and assembly time and brings convenience to the installation.

[0011] In some embodiments, the profiling mold is detachably connected to the base plate. In this way, when the profiling mold is worn, only the corresponding profiling mold needs to be replaced, and the entire device does not need to be replaced, which effectively saves costs.

[0012] In some embodiments, at least two fixing grooves are provided on the profiling die, so that a plurality of cable glands can be installed at the same time.

[0013] In some embodiments, the shapes of the plurality of fixing grooves are the same, and the orientation of each fixing groove relative to the bottom plate is the same.

[0014] In some embodiments, the fixing member includes a plurality of positioning blocks, and the plurality of positioning blocks are all disposed on the bottom plate;

[0015] The panel is arranged on the side of the profiling mold away from the bottom plate, and the side surface of the panel around the circumference abuts against the positioning block. In this way, the panel can be conveniently fixed by the positioning block.

[0016] In some embodiments, the fixing member further comprises at least one fastener, and the fastener is disposed on the bottom plate;

[0017] The panel is arranged on the side of the profiling mold away from the bottom plate, and the fastener cooperates with the panel to fix the panel on the bottom plate. In this way, with the cooperation of the fastener, the panel can be fixed on the bottom plate more stably.

[0018] In some embodiments, the fastener comprises a quick clamp, and the quick clamp is arranged on the base plate. Since the quick clamp is easy to operate, the panel can be quickly fixed on the base plate without spending much time.

[0019] In some embodiments, the tightening device further comprises a connecting block, the size of the connecting block along the first direction is adjustable, the connecting block is arranged on the bottom plate, and the fastener is arranged on a side of the connecting block away from the bottom plate, wherein the first direction is the thickness direction of the bottom plate. In this way, it is convenient to adjust the distance between the fastener and the panel in the first direction, so that the fastener can fix the panel.

[0020] In some embodiments, the tightening device further comprises a handle, and the handle is disposed on the bottom plate, so that the entire device can be easily transferred.

[0021] In a second aspect, the present application proposes an airtightness testing device, comprising a tightening device as described in any one of the embodiments of the present application.

[0022] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically exemplified below. Description of the Drawings

[0023] By reading the following detailed description of the embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the embodiments and are not considered to be a limitation of the present application. Moreover, in all the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0024] Figure 1 is a schematic structural diagram of a tightening device provided by some embodiments of the present application;

[0025] Figure 2 is a schematic diagram of a panel fixed on the tightening device;

[0026] Figure 3 is a schematic diagram of a double-threaded connector provided by some embodiments of the present application;

[0027] Figure 4 is a schematic diagram of a panel provided by some embodiments of the present application;

[0028] Figure 5 is Figure 4 a schematic diagram from another perspective;

[0029] Figure 6 is a schematic diagram of a gland head cover tightened on a gland head provided by some embodiments of the present application;

[0030] Figure 7 is a schematic diagram of a nut sleeve provided by some embodiments of the present application;

[0031] Figure 8 is Figure 7 a schematic diagram from another perspective;

[0032] Figure 9 is a schematic diagram of a gland head cover provided by some embodiments of the present application;

[0033] Figure 10 is Figure 9 a schematic diagram from another perspective.

[0034] The reference numerals in the specific embodiments are as follows:

[0035] 1. Base plate; 2. Fixing member; 201. Positioning block; 202. Fastening member; 3. Profiling die; 301. Fixing groove; 302. Through hole; 4. Handle; 5. Connecting block; 6. Panel; 7. Nut; 801. First threaded section; 802. Second threaded section; 803. External hexagonal protrusion; 9. Outer shell; 10. Nut sleeve; 11. Cable gland sleeve. Detailed implementation manners

[0036] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0038] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0039] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0040] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally means that the associated objects before and after are in an "or" relationship.

[0041] In the description of the embodiments of this application, the term "a plurality" refers to more than two (including two). Similarly, "a plurality of groups" refers to more than two groups (including two groups), and "a plurality of pieces" refers to more than two pieces (including two pieces).

[0042] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0043] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "coupling", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0044] With the continuous improvement of living standards and the enhancement of energy conservation and emission reduction awareness, more and more people travel by cars and electric vehicles, which are convenient for travel, energy-saving and environmentally friendly. In the field of cars and electric vehicles, the core system includes a high-voltage box, a control box and a battery pack, which constitute the core power system of the electric vehicle.

[0045] When the high-voltage box in the related art is subjected to an airtight test, a gland head needs to be installed on the high-voltage connector, and multiple people are required to assist in positioning during the installation process of the gland head, resulting in a long installation time.

[0046] Based on the above considerations, in order to solve the problem of the long assembly time of the gland head on the high-voltage box, a tightening device is designed. The tightening device includes a bottom plate, a fixing member, a profiling die and a housing. The fixing member is arranged on the bottom plate and is used to tightly connect the panel of the gland head, and the panel is configured to be installed on the high-voltage box; the profiling die is arranged on the bottom plate, and the profiling die is provided with a fixing groove and a through hole, and the through hole is located in the fixing groove, and the fixing groove is used to fix the double-threaded connector on the gland head; the panel is located on the side of the profiling die away from the bottom plate; the housing is connected to the second threaded section on the double-threaded connector.

[0047] In the technical solution of the embodiment of the present application, the double-threaded connector on the gland is placed into the fixing groove in the profiling mold, and then the back of the panel is placed on the profiling mold. At this time, the first thread segment on the double-threaded connector is located outside after passing through the mounting hole on the panel, the second thread segment on the double-threaded connector is located in the corresponding through hole, and the outer hexagonal protrusion on the double-threaded connector is located in the corresponding fixing groove. Then the panel is fixed by the fixing member, and finally the nut on the gland is connected to the corresponding first thread segment. The overall device can quickly fix the panel through the cooperation of the fixing member and the base plate, without the need for additional manual fixing of the panel. Moreover, the double-threaded connector can be fixed in the fixing groove when connected, so that the panel connected to the gland is easy to be installed on the high-voltage box, which effectively saves the fixing and assembly time and brings convenience to the installation.

[0048] According to some embodiments of the present application, Figure 1 is a schematic diagram of the structure of the tightening device in this application, Figure 2 This is a schematic diagram of the panel being fixed on the tightening device. Figure 3 This is a schematic diagram of a double threaded connector in this application. Figure 4 This is a schematic diagram of the panel in this application. Figures 1-4 As shown, the present application provides a tightening device, which includes a base plate 1, a fixing member 2, a profiling mold 3 and a shell 9, wherein the fixing member 2 is arranged on the base plate 1, and is used to fasten a panel 6 connected to a cable gland, and the panel 6 is used to be installed on a high-voltage box, and the profiling mold 3 is arranged on the base plate 1, and a fixing groove 301 and a through hole 302 are provided on the profiling mold 3, and the through hole 302 is located in the fixing groove 301, and the fixing groove 301 is used to fix a double-threaded connector 8 on the cable gland; the panel 6 is located on the side of the profiling mold 3 away from the base plate 1, and the shell 9 is connected to the second threaded segment 802 on the double-threaded connector 8.

[0049] The fixing member 2 in this embodiment can be fixed to the upper surface of the base plate 1 by bolts. The fixing member 2 can be a clamp, a quick clamp, etc. The specific one can be determined according to actual conditions, and the embodiments of this specification do not limit this.

[0050] The profiling mold 3 in this embodiment can be connected to the upper surface of the base plate 1 by snapping or bolting. The profiling mold 3 is provided with a plurality of fixing grooves 301 and a plurality of through holes 302 , and each through hole 302 is correspondingly located in each fixing groove 301 .

[0051] During installation, first place the double-threaded connector 8 on the gland head into the fixing groove 301 in the profiling die 3 correspondingly, and then place the back of the panel 6 on the profiling die 3. At this time, the first threaded section 801 on the double-threaded connector 8 passes through the mounting hole on the panel 6 and is located outside, the second threaded section 802 on the double-threaded connector 8 is located in the corresponding through hole 302, and the external hexagonal protrusion 803 on the double-threaded connector 8 is located in the corresponding fixing groove 301, and the size of the external hexagonal protrusion 803 is larger than the mounting hole on the panel 6. The external hexagonal protrusion 803 abuts against the side of the panel 6 facing the profiling die 3. At this time, under the limitation of the fixing groove 301, the double-threaded connector 8 cannot rotate freely.

[0052] Subsequently, fix the panel 6 with the fixing member 2, and finally pre-tighten the nut 7 on the gland head with the corresponding first threaded section 801. At this time, then put the nut sleeve 10 on the nut 7, and then combine Figure 7 、 Figure 8 As shown, drive the nut sleeve 10 to rotate by using a tightening gun, so that the nut 7 can be fastened on the first threaded section 801. The tightened structure is as shown in Figure 4 shown.

[0053] At this time, loosen the fixing member 2, remove the panel 6 from the profiling die 3, turn over the panel 6, adjust the position of the panel 6 and then fix it to the container with screws. After passing the corresponding cable through the central hole on the double-threaded connector 8, the cable extends out from the second threaded section 802 on the double-threaded connector 8, and then put the outer shell 9 of the gland head on the cable. As shown in Figure 5 shown, pre-tighten the outer shell 9 on the second threaded section 802, as shown in Figure 6 and combine Figure 9 、 Figure 10 shown. Finally, use a tightening gun with a gland head sleeve 11 to tighten the outer shell 9,

[0054] The whole device can quickly fix the panel 6 through the cooperation of the fixing member 2 and the bottom plate 1, without additional manual fixing of the panel 6. Moreover, when the double-threaded connector 8 is connected, it can be fixed in the fixing groove 301, so as to facilitate the installation of the panel 6 of the gland head on the high-voltage box, effectively saving the fixing and assembly time and bringing convenience to the installation.

[0055] According to some embodiments of the present application, the profiling die 3 is detachably connected to the bottom plate 1.

[0056] In this embodiment, the profiling die 3 can be snap-connected or connected to the bottom plate 1 by bolts, and specifically can be determined according to the actual situation, and this is not limited in the embodiments of this specification.

[0057] Since the profiling mold 3 is detachably connected to the bottom plate 1, when the profiling mold 3 is worn, only the corresponding profiling mold 3 needs to be replaced, and there is no need to replace the entire device, which effectively saves costs.

[0058] According to some embodiments of the present application, at least two fixing grooves 301 are provided on the profiling mold 3 .

[0059] In this embodiment, two, three, ten, etc. fixing grooves 301 can be provided on the profiling mold 3, and the specific number can be determined according to actual conditions, and this embodiment of the specification does not limit this. In this way, when multiple cable glands need to be installed on the panel 6, the double-threaded connector 8 on each cable gland can be fixed in the corresponding fixing groove 301 and then installed together, which effectively improves the installation efficiency.

[0060] According to some embodiments of the present application, the shapes of the plurality of fixing grooves 301 are the same, and the orientation of each fixing groove 301 relative to the base plate 1 is the same.

[0061] In this embodiment, each fixing groove 301 is an internal hexagonal structure. When the double-threaded connector 8 is placed in the fixing groove 301 , the external hexagonal protrusion 803 on the double-threaded connector 8 is stuck in the corresponding fixing groove 301 .

[0062] Since the orientation of each fixing groove 301 relative to the base plate 1 is the same, when the outer hexagonal protrusion 803 on the double-threaded connector 8 is stuck in the corresponding fixing groove 301, the orientation of each outer hexagonal protrusion 803 relative to the panel 6 is also the same.

[0063] According to some embodiments of the present application, Figure 1 As shown, the fixing member 2 includes a plurality of positioning blocks 201 , and the plurality of positioning blocks 201 are all arranged on the bottom plate 1 ; the panel 6 is arranged on the side of the profiling mold 3 away from the bottom plate 1 , and the side surface of the panel 6 around the circumference abuts against the positioning blocks 201 .

[0064] The fixing member 2 of the present embodiment may include two, three, etc. positioning blocks 201 , which may be specifically determined according to actual conditions, and the present specification does not limit this.

[0065] The positioning block 201 in this embodiment can be connected to the bottom plate 1 by bolts, or the positioning block 201 and the bottom plate 1 are integrally formed. The specific details can be determined according to actual conditions, and this specification embodiment does not limit this.

[0066] When the panel 6 is placed on the side of the profiling mold 3 away from the bottom plate 1 , the side surface of the panel 6 around the circumference abuts against the positioning block 201 , so that the panel 6 can be conveniently fixed by the positioning block 201 .

[0067] According to some embodiments of the present application, Figure 1As shown, the fixing member 2 further includes at least one fastener 202, and the fastener 202 is disposed on the bottom plate 1; when the panel 6 is disposed on the side of the profiling die 3 away from the bottom plate 1, the fastener 202 cooperates with the panel 6 to fix the panel 6 on the bottom plate 1.

[0068] The fixing member 2 in this embodiment may include two, three or more fasteners 202, which can be specifically determined according to actual situations and are not limited in the embodiments of this specification.

[0069] The fastener 202 in this embodiment can be connected to the bottom plate 1 by bolts, or the fastener 202 and the bottom plate 1 are integrally formed, which can be specifically determined according to actual situations and are not limited in the embodiments of this specification.

[0070] The fastener 202 in this embodiment can be a clamp, a quick clamp, etc.

[0071] When the panel 6 is placed on the side of the profiling die 3 away from the bottom plate 1, the circumferential side surface of the panel 6 abuts against the positioning block 201. At the same time, the panel 6 is fixed on the bottom plate 1 by using the fastener 202, so that the panel 6 can be more stably fixed on the bottom plate 1.

[0072] According to some embodiments of the present application, the fastener 202 includes a quick clamp, and the quick clamp is disposed on the bottom plate 1.

[0073] The quick clamp in this embodiment is fixed to the bottom plate 1 by bolts. When the panel 6 is placed on the side of the profiling die 3 away from the bottom plate 1, the circumferential side surface of the panel 6 abuts against the positioning block 201, and the upper surface of the panel 6 is fixed by the clamp. Since the quick clamp is convenient to operate, the panel 6 can be quickly fixed on the bottom plate 1 without spending much time.

[0074] According to some embodiments of the present application, the tightening device further includes a connecting block 5, the size of the connecting block 5 in the first direction is adjustable, the connecting block 5 is disposed on the bottom plate 1, and the fastener 202 is disposed on the side of the connecting block 5 away from the bottom plate 1, wherein the first direction is the thickness direction of the bottom plate 1.

[0075] The connecting block 5 in this embodiment includes a plurality of plate bodies clamped together in the first direction. By connecting different numbers of plate bodies, the height of the connecting block 5 in the first direction can be adjusted.

[0076] The connecting block 5 in this embodiment can be clamped or connected to the bottom plate 1 by bolts, and then the fastener 202 is fixed to the side of the connecting block 5 away from the bottom plate 1 by bolts. By adjusting the height of the connecting block 5, the distance between the fastener 202 and the panel 6 in the first direction can be conveniently adjusted, which is convenient for the fastener 202 to fix the panel 6.

[0077] According to some embodiments of the present application, the tightening device further includes a handle 4, and the handle 4 is disposed on the bottom plate 1.

[0078] In this embodiment, the handle 4 can be connected to the bottom plate 1 by bolts, or the handle 4 and the bottom plate 1 are integrally formed. Specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0079] In this embodiment, by providing the handle 4 on the bottom plate 1, in this way, it is convenient to transfer the whole device.

[0080] The present application further provides an airtightness testing device, including the tightening device according to any one of the embodiments of the present application.

[0081] For the specific structure of the tightening device in this embodiment, refer to the above embodiments. Since all the technical solutions of the above embodiments are adopted in this airtightness testing device, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated herein one by one.

[0082] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application 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 recorded 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 application, and they should all be covered by the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tightening device, characterized in that, include: Base plate; A fixing member, the fixing member is arranged on the bottom plate and used for fastening a panel connected to the cable gland, the panel being configured to be mounted on the high-voltage box; A profiling mold, the profiling mold is arranged on the bottom plate, a fixing groove and a through hole are arranged on the profiling mold, the through hole is located in the fixing groove, and the fixing groove is used to fix the double-threaded connector on the cable gland; the panel is located on the side of the profiling mold away from the bottom plate; A shell is connected to the second threaded section on the double-threaded connector.

2. The tightening device according to claim 1, characterized in that The contour mold is detachably connected to the base plate.

3. The tightening device according to claim 1, characterized in that, At least two fixing grooves are arranged on the profiling die.

4. The tightening device according to claim 3, characterized in that, The shapes of the plurality of fixing grooves are all the same, and the orientation of each fixing groove relative to the bottom plate is the same.

5. The tightening device according to any one of claims 1 to 4, characterized in that, The fixing member comprises a plurality of positioning blocks, and the plurality of positioning blocks are all arranged on the bottom plate; The panel is arranged on a side of the profiling die away from the bottom plate, and the side surface of the panel around the circumference abuts against the positioning block.

6. The tightening device according to claim 5, characterized in that, The fixing member further comprises at least one fastener, and the fastener is arranged on the bottom plate; The panel is arranged on a side of the contoured mold away from the bottom plate, and the fastener cooperates with the panel to fix the panel on the bottom plate.

7. The tightening device according to claim 6, characterized in that The fastener comprises a quick clamp, and the quick clamp is arranged on the base plate.

8. The tightening device according to claim 6, characterized in that, The tightening device also includes a connecting block, the size of which along a first direction is adjustable, the connecting block is arranged on the base plate, and the fastener is arranged on a side of the connecting block away from the base plate, wherein the first direction is the thickness direction of the base plate.

9. The tightening device according to any one of claims 1 to 4, characterized in that, The tightening device also includes a handle, and the handle is arranged on the bottom plate.

10. An airtight test device, characterized in that, Comprising a tightening device as claimed in any one of claims 1 to 9.

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