Static pressure clamp and static pressure equipment

Abstract

The utility model relates to the technical field of solid-state batteries, in particular to a static pressure clamp and static pressure equipment, the static pressure clamp comprises a clamping assembly and connecting lock catches, the clamping assembly comprises a first clamping plate and a second clamping plate which are oppositely arranged in the first direction, and the two opposite ends of the clamping assembly are provided with the connecting lock catches respectively. The first end of the connecting lock catch in the first direction is fixedly connected with the first clamping plate, and the second end of the connecting lock catch in the first direction is detachably connected with the second clamping plate. The connecting lock catch comprises an elastic part capable of elastically deforming in the first direction, and the elastic part is connected with the first end and the second end. According to the static pressure clamp and the static pressure equipment provided by the invention, the static pressure clamp can adapt to the to-be-pressed solid-state batteries with different thickness specifications (and / or different stacking numbers); and the elastic part can change along with the change of the distance between the first clamping plate and the second clamping plate, so that the compression effect of the solid-state battery to be compressed is improved.

Description

Technical Field

[0001] The present application relates to the field of solid-state battery technology, and in particular to a static pressure fixture and static pressure equipment. Background Art

[0002] Solid-state batteries are a new type of high-energy-density battery technology that uses solid-state electrolytes instead of traditional liquid or gel-like electrolytes, thereby improving battery safety and energy density. During the solid-state battery production process, the solid-state battery is typically placed in a static pressure device using a static pressure fixture. The solid-state battery is maintained at a predetermined pressure to ensure good contact between the solid electrolyte and the electrodes, avoiding the formation of voids and interfacial resistance that can affect battery performance.

[0003] Today's static pressure clamps usually include multiple plywood and screws and nuts connecting the multiple plywood. During the production process of solid-state batteries, the solid-state battery is usually placed between two adjacent plywood. The screw passes through the plywood in sequence, and the position of the plywood relative to the screw is adjusted by the nut (see the structure of the clamping assembly shown in Chinese patent document CN221766802U). However, today's static pressure clamps adjust the position of the plywood by limiting the clamping of the nut and the plywood. The plywood is limited by the clamping of the nut. When the static pressure equipment applies pressure to the plywood, the flexibility of adjusting the spacing between adjacent plywood in the pressure direction is poor, resulting in the pressure applied by the static pressure equipment to the solid-state battery being consumed by the static pressure clamp, thereby affecting the pressure effect of the solid-state battery. In addition, the static pressure clamp is very easy to be damaged during the pressure application process of the static pressure equipment. Utility Model Content

[0004] The purpose of this application is to provide a static pressure clamp and static pressure equipment to, to a certain extent, address the technical problems in the prior art where, when the static pressure equipment applies pressure to the clamps, the spacing between adjacent clamps in the pressure direction is limited in flexibility, resulting in a significant amount of pressure applied by the static pressure equipment to the solid-state battery being consumed by the static pressure clamp, thereby affecting the solid-state battery's pressure-bearing effect. Furthermore, the static pressure clamp is easily damaged during the pressure application process.

[0005] According to a first aspect of the present application, a static pressure clamp is provided, comprising a clamping assembly and a connecting lock, wherein the clamping assembly comprises a first clamping plate and a second clamping plate arranged opposite to each other along a first direction, and the connecting lock is respectively provided at two opposite ends of the clamping assembly;

[0006] A first end of the connecting lock buckle in the first direction is fixedly connected to the first clamping plate, and a second end of the connecting lock buckle in the first direction is detachably connected to the second clamping plate;

[0007] The connecting lock includes an elastic portion capable of elastically deforming along the first direction, and the elastic portion connects the first end and the second end.

[0008] Preferably, both ends of the clamping assembly in the second direction are provided with the connecting lock buckles, and the second direction is perpendicular to the first direction;

[0009] The connecting lock buckle includes a first fitting portion, one end of the elastic portion is connected to the first fitting portion, and the first end of the connecting lock buckle is fitted with the end surface of the first splint in the second direction via the first fitting portion.

[0010] Preferably, the connecting lock further comprises a buckling assembly, wherein the buckling assembly is hingedly connected to an end of the elastic portion away from the first clamping plate;

[0011] A plurality of fixing portions are provided on a side of the second splint facing away from the first splint, and the plurality of fixing portions are spaced apart along the second direction;

[0012] The buckle assembly can be detachably connected to the fixing portion.

[0013] Preferably, the fastening assembly includes a second fitting portion and a hinged cover, wherein the second fitting portion can fit with the side of the second splint facing away from the first splint, and the second fitting portion can be detachably connected to the fixing portion;

[0014] The hinged cover is arranged on a side of the second fitting portion facing away from the first splint;

[0015] The elastic portion is hinged to the hinged cover, and the hinged cover and the second fitting portion are hinged to each other at the same end in the second direction.

[0016] Preferably, the second fitting portion includes a fitting body, a connecting body, and a first hinged ear, wherein the fitting body is used to fit with the side of the second splint facing away from the first splint, the connecting body extends along the first direction toward the side where the first splint is located, and the first hinged ear is provided on the connecting body;

[0017] The hinged cover comprises a cover body and a second hinged ear connected to each other, the cover body is provided on a side of the fitting body facing away from the first splint, and the second hinged ear extends from the cover body toward the side where the first splint is located;

[0018] The first hinged ear is provided at one end of the fitting body and extends along one side where the first splint is located. The first hinged ear is hinged to the second hinged ear.

[0019] Preferably, the fitting body is provided with a first limiting portion, and the cover body is provided with a second limiting portion. When the hinged cover and the second fitting portion are in a buckled state, the first limiting portion and the second limiting portion are engaged with each other.

[0020] Preferably, the connecting lock includes two elastic parts, and the two elastic parts are respectively arranged at the two ends of the first fitting part and the buckling component in a third direction, and the third direction is perpendicular to the plane determined by the first direction and the second direction.

[0021] Preferably, the clamping assembly further comprises a flexible pad, and the surfaces of the first clamping plate and the second clamping plate facing each other are both covered with the flexible pad.

[0022] Preferably, the clamping assembly is provided with a through hole, and the through hole passes through the first clamping plate and the second clamping plate in sequence along the first direction.

[0023] According to the second aspect of the present application, a static pressure device is provided, comprising the static pressure clamp described in any of the above technical solutions, and thus having all the beneficial technical effects of the static pressure clamp, which will not be described in detail here.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] The static pressure clamp provided by the present application is fixedly connected to the first clamping plate by the first end of the connecting lock in the first direction, and the second end of the connecting lock in the first direction is detachably connected to the second clamping plate, so as to facilitate the solid-state battery to be pressed to be arranged between the first clamping plate and the second clamping plate, and an elastic part that can undergo elastic deformation along the first direction is provided to connect the above-mentioned first end and the second end. On the one hand, through the elongation / shortening of the elastic part, the static pressure clamp can adapt to solid-state batteries to be pressed with different thickness specifications (and / or different stacking numbers); on the other hand, the elastic part can undergo elastic deformation along the first direction. When the static pressure equipment applies pressure to the first clamping plate and / or the second clamping plate, the elastic part can change with the change of the distance between the first clamping plate and the second clamping plate, effectively avoiding the connection structure between the first clamping plate and the second clamping plate interfering with the pressure of the solid-state battery to be pressed, thereby improving the pressure effect of the solid-state battery to be pressed.

[0026] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the isometric structure of the static pressure clamp provided in an embodiment of the present application;

[0029] Figure 2 for Figure 1 The enlarged structural diagram of the provided static pressure fixture at point A;

[0030] Figure 3 A schematic front view of the structure of the second splint provided in an embodiment of the present application;

[0031] Figure 4 Schematic diagram of the exploded structure of the connecting lock provided in an embodiment of the present application.

[0032] Reference numerals:

[0033] 1 - Connecting lock; 11 - First fitting portion; 111 - First connecting hole; 112 - Hinge hook; 12 - Snap-fit ​​assembly; 121 - Second fitting portion; 1211 - Fitting body; 1212 - Connecting body; 1213 - First limiting portion; 1214 - First hinged ear; 1215 - Second connecting hole; 122 - Hinge cover; 1221 - Cover body; 1222 - Second hinged ear; 1223 - Second limiting portion; 13 - Elastic portion; 141 - First hinge axis; 142 - Second hinge axis; 143 - Third hinge axis; 21 - First splint; 22 - Second splint; 221 - Fixing portion; 23 - Flexible pad; 24 - Through hole;

[0034] F1-first direction; F2-second direction; F3-third direction. DETAILED DESCRIPTION

[0035] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0036] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0037] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0038] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0040] Refer to the following Figures 1 to 4 The present invention describes a static pressure fixture and a static pressure device according to some embodiments of the present application.

[0041] See also Figures 1 to 4 As shown, an embodiment of the first aspect of the present application provides a static pressure clamp, comprising a clamping assembly and a connecting lock 1. The clamping assembly includes a first clamping plate 21 and a second clamping plate 22 arranged opposite to each other along a first direction F1. The clamping assembly is provided with a connecting lock 1 at each of its opposite ends. The first end of the connecting lock 1 in the first direction F1 is fixedly connected to the first clamping plate 21, and the second end of the connecting lock 1 in the first direction F1 is detachably connected to the second clamping plate 22. The connecting lock 1 includes an elastic portion 13 capable of elastically deforming along the first direction F1, and the elastic portion 13 connects the first end and the second end.

[0042] According to the static pressure clamp provided by the above technical features, the first end of the connecting lock buckle 1 in the first direction F1 is fixedly connected to the first clamp 21, and the second end of the connecting lock buckle 1 in the first direction F1 is detachably connected to the second clamp 22, so that the solid-state battery to be pressed is set between the first clamp 21 and the second clamp 22, and an elastic part 13 that can undergo elastic deformation along the first direction F1 is provided to connect the above-mentioned first end and the second end. On the one hand, through the elongation / shortening of the elastic part 13, the static pressure clamp can adapt to solid-state batteries to be pressed with different thickness specifications (and / or different stacking numbers); on the other hand, the elastic part 13 can undergo elastic deformation along the first direction F1. When the static pressure equipment applies pressure to the first clamp 21 and / or the second clamp 22, the elastic part 13 can change with the change of the distance between the first clamp 21 and the second clamp 22, effectively avoiding the connection structure between the first clamp 21 and the second clamp 22 interfering with the pressure of the solid-state battery to be pressed, thereby improving the pressure effect of the solid-state battery to be pressed.

[0043] like Figures 1 to 3 As shown, F1 shown in the figure may be an example of the first direction F1, and F2 shown in the figure may be an example of the second direction F2 described below, wherein the first direction F1 may be arranged to intersect with the second direction F2. Preferably, as shown in FIG. Figures 1 to 3 As shown, the first direction F1 can be perpendicular to the second direction F2 to accommodate the square structure of the solid-state battery to be pressed. For ease of description, the direction perpendicular to the confirmed plane of both the first direction F1 and the second direction F2 is defined as a third direction F3. The F3 shown in the figure can be an example of the third direction F3 described below.

[0044] like Figure 1 As shown in the figure, an example of the connection lock 1 being arranged at both ends of the clamping assembly in the second direction F2 is shown. However, it is not limited to this. Optionally, the above-mentioned connection lock 1 can also be arranged at both ends of the clamping assembly in the third direction F3.

[0045] like Figures 1 to 4 As shown, the structure of the static pressure clamp will be described in detail below by taking the static pressure clamp in which the connecting lock buckle 1 is arranged at both ends of the clamping assembly in the second direction F2 as an example.

[0046] Preferably, if Figure 2 and Figure 4As shown, the above-mentioned connecting lock buckle 1 includes a first fitting portion 11, one end of the elastic portion 13 is connected to the first fitting portion 11, and the first end of the connecting lock buckle 1 is fitted with the end face of the first clamping plate 21 in the second direction F2 via the first fitting portion 11. In this way, fitting the first fitting portion 11 of the connecting lock buckle 1 with the end face of the first clamping plate 21 in the second direction F2 can effectively avoid the connecting lock buckle 1 occupying the space on both sides of the first clamping plate 21 in the first direction F1, thereby ensuring the flatness of both sides of the first clamping plate 21 in the first direction F1, so as to facilitate pressure application by static pressure equipment.

[0047] Preferably, if Figure 4 As shown, the first fitting portion 11 may be provided with a first connection hole 111 penetrating the first fitting portion 11 along the second direction F2, and the first fitting portion 11 may be screwed or riveted to the first fitting portion 11 via screws or rivets penetrating the first connection hole 111.

[0048] Preferably, if Figure 1 、 Figure 2 and Figure 4 As shown, the connecting lock buckle 1 may include a third hinge shaft 143 and two elastic portions 13 spaced apart along a third direction F3. The third hinge shaft 143 extends along the third direction F3, and the ends of the two elastic portions 13 near the first fitting portion 11 are connected via the second hinge shaft 142. The end of the first fitting portion 11 near the second clamping plate 22 in the first direction F1 is provided on a hinge hook 112. The hinge hook 112 can be hung on the third hinge shaft 143. On the one hand, this realizes the hinged connection between the first fitting portion 11 and the elastic portion 13. On the other hand, the hanging connection between the hinge hook 112 and the third hinge shaft 143 can realize a detachable connection between the first fitting portion 11 and the elastic portion 13, thereby improving the replaceability and maintainability of the elastic portion 13 and the first fitting portion 11 of the connecting lock buckle 1.

[0049] Preferably, the elastic portion 13 may be a spring. It should be noted that: Figure 1 、 Figure 2 and Figure 4 The cylindrical structure shown by the middle number 13 is a simplified structure of the spring.

[0050] Preferably, if Figure 4 As shown, the connecting lock buckle 1 may further include a second hinge shaft 142 , and the ends of the two elastic parts 13 in the first direction F1 away from the first clamping plate 21 are connected via the second hinge shaft 142 to ensure the connection stability of the two elastic parts 13 .

[0051] In an embodiment, Figures 2 to 4As shown, the connecting lock 1 may further include a snap-fit ​​assembly 12, which is hingedly connected to the elastic portion 13 via the second hinge shaft 142. A fixing portion 221 is provided on the side of the second clamping plate 22 facing away from the first clamping plate 21. The snap-fit ​​assembly 12 can be detachably connected to the fixing portion 221 to achieve a detachable connection between the connecting lock 1 and the second clamping plate 22.

[0052] Preferably, if Figure 1 and Figure 3 As shown, the number of the above-mentioned fixing parts 221 can be multiple, and the multiple fixing parts 221 can be spaced apart along the second direction F2, so as to be connected with different fixing parts 221 through the above-mentioned snap-fit ​​assembly 12, so as to realize the adjustment of the distance between the first clamping plate 21 and the second clamping plate 22, so as to adapt to solid-state batteries to be pressed with different thickness specifications (and / or different stacking numbers), thereby improving the application range of the static pressure clamp.

[0053] Alternatively, the fixing portion 221 may be a threaded hole, that is, a screw or bolt may be passed through the second connection hole 1215 to be threadedly connected to the second clamping plate 22. However, the present invention is not limited thereto. As long as the snap-fit ​​assembly 12 can be detachably connected to the side of the second clamping plate 22 facing away from the first clamping plate 21, the fixing portion 221 may also be a fixing structure such as a stud or a claw.

[0054] Preferably, if Figure 2 and Figure 4 As shown, the above-mentioned fastening assembly 12 may include a second fitting portion 121, and the second fitting portion 121 can fit with the side of the second clamping plate 22 facing away from the first clamping plate 21. Figure 4 As shown, the second fitting portion 121 may further be provided with a second connection hole 1215 penetrating the second fitting portion 121 , and the second fitting portion 121 may be threadedly connected to the second clamping plate 22 via the second connection hole 1215 and the fixing portion 221 .

[0055] Preferably, if Figure 2 and Figure 4 As shown, the fastening assembly 12 may further include a hinged cover 122, which is disposed on a side of the second fitting portion 121 facing away from the first splint 21. The second hinge shaft 142 may pass through the hinged cover 122 to achieve a hinged connection between the elastic portion 13 and the hinged cover 122. The hinged cover 122 and the second fitting portion 121 are hingedly connected to each other at the same end in the second direction F2. In this way, the elastic portion 13 and the second fitting portion 121 are respectively hinged to different positions of the hinged cover 122. When the second fitting portion 121 is connected to the fixing portion 221 at different positions, the flatness of the second fitting portion 121 can be ensured by the covering action of the hinged cover 122.

[0056] Preferably, if Figure 4As shown, the second fitting portion 121 may include a fitting body 1211, a connecting body 1212, and a first hinged lug 1214. The fitting body 1211 is configured to fit against the side of the second splint 22 facing away from the first splint 21. The connecting body 1212 extends along a first direction F1 toward the side of the first splint 21. The first hinged lug 1214 is disposed on the connecting body 1212. The hinged cover 122 includes a cover body 1221 and a second hinged lug 1222 connected to each other. The cover body 1221 covers the side of the fitting body 1211 facing away from the first splint 21. The second hinged lug 1222 extends from the cover body 1221 toward the side of the first splint 21. The first hinged lug 1214 is disposed at one end of the fitting body 1211 and extends along the side of the first splint 21. The first hinged lug 1214 is hingedly connected to the second hinged lug 1222.

[0057] Preferably, if Figure 1 、 Figure 2 and Figure 4 As shown, the second hinge shaft 142 can be arranged at one end of the cover body close to the first hinge ear 1214, and the second hinge shaft 142 and the third hinge shaft 143 can be arranged relative to each other along the first direction to ensure that the force direction of the elastic force of the elastic part is parallel to the first direction, thereby ensuring that the fitting body 1211 can be fitted with the second splint 22.

[0058] Preferably, if Figure 4 As shown, the fitting body 1211 may extend along the second direction F2 , and the fitting body 1211 may be provided with a plurality of the second connection holes 1215 , which are spaced apart along the second direction F2 to facilitate docking with different fixing portions 221 .

[0059] Preferably, if Figure 2 and Figure 4 As shown, the connecting lock buckle 1 may further include a first hinge shaft 141 , and the first hinged ear 1214 and the second hinged ear 1222 are hinged via the first hinge shaft 141 .

[0060] Preferably, if Figure 4 As shown, the above-mentioned fitting body 1211 can be provided with a first limiting portion 1213, and correspondingly, the cover body 1221 is provided with a second limiting portion 1223, as shown in FIG. Figure 2As shown, when the hinged cover 122 and the second fitting portion 121 are in the engaged state, the first limiting portion 1213 and the second limiting portion 1223 are engaged with each other, so that the hinged cover 122 and the second fitting portion 121 are fixed by the engagement of the first limiting portion 1213 and the second limiting portion 1223, thereby ensuring the locking stability of the connecting lock 1. Optionally, the first limiting portion 1213 can be a limiting protrusion provided on both sides of the fitting body 1211 in the third direction F3, and the second limiting portion 1223 can be a limiting groove that cooperates with the limiting protrusion.

[0061] In an embodiment, Figure 1 As shown, the clamping assembly may further include a flexible pad 23. The flexible pad 23 is provided on the opposing surfaces of the first clamping plate 21 and the second clamping plate 22 to prevent the static pressure clamp from crushing the solid-state battery to be pressed during the static pressure device's application of pressure. Optionally, the flexible pad 23 may be a silicone pad, a rubber pad, or other flexible material pad.

[0062] Preferably, if Figure 1 and Figure 3 As shown, the clamping assembly is provided with a through hole 24, which sequentially passes through the first clamping plate 21 and the second clamping plate 22 along the first direction F1. Optionally, not shown in the figure, the static pressure clamp may further include a guide rod extending along the first direction F1, which passes through the through hole 24 along the first direction F1. The guide rod and the through hole 24 guide each other to ensure uniform pressure applied by the static pressure clamp to the solid-state battery to be pressed. Optionally, not shown in the figure, the above-mentioned static pressure clamp may also include a screw and a nut, the screw may pass through the above-mentioned through hole 24 along the first direction F1, and the nut may be bolted to the screw at both ends of the clamping assembly in the first direction F1, so that when the above-mentioned connecting lock 1 fails and is damaged or the size of the solid-state battery to be pressed is not within the range that the connecting lock 1 can lock, the static pressure clamp can also use the screw and nut structure to clamp the solid-state battery to be pressed, which not only improves the scope of use of the static pressure clamp, so that the clamping assembly can take into account the existing static pressure clamp clamping form and the static pressure clamp clamping form provided by this application, but also can modify the existing static pressure clamp into the static pressure clamp provided by this application by adding the connecting lock 1, thereby effectively reducing the manufacturing cost of the static pressure clamp.

[0063] Preferably, taking the first clamping plate 21 and the second clamping plate 22 as square plates as an example, Figure 1 and Figure 3 As shown, the four corners of the square plate are all disposed in the through hole 24 to ensure uniform force on the first clamping plate 21 and the second clamping plate 22 .

[0064] The embodiment of the second aspect of the present application further provides a static pressure device, including the static pressure clamp described in any of the above embodiments, and thus has all the beneficial technical effects of the static pressure clamp, which will not be repeated here.

[0065] Specifically, the static pressure device further includes a pressure applying device, which can apply pressure to the first clamping plate 21 and / or the second clamping plate 22 along the first direction F1.

[0066] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A static pressure clamp, characterized in that: The clamping assembly comprises a first clamping plate and a second clamping plate arranged opposite to each other along a first direction, and the connecting locks are respectively provided at two opposite ends of the clamping assembly; A first end of the connecting lock buckle in the first direction is fixedly connected to the first clamping plate, and a second end of the connecting lock buckle in the first direction is detachably connected to the second clamping plate; The connecting lock includes an elastic portion capable of elastically deforming along the first direction, and the elastic portion connects the first end and the second end.

2. The static pressure clamp according to claim 1, characterized in that The connecting locks are provided at both ends of the clamping assembly in a second direction, and the second direction is perpendicular to the first direction; The connecting lock buckle includes a first fitting portion, one end of the elastic portion is connected to the first fitting portion, and the first end of the connecting lock buckle is fitted with the end surface of the first splint in the second direction via the first fitting portion.

3. The static pressure clamp according to claim 2, characterized in that: The connecting lock further comprises a buckling assembly, wherein the buckling assembly is hingedly connected to an end of the elastic portion away from the first clamping plate; A plurality of fixing portions are provided on a side of the second splint facing away from the first splint, and the plurality of fixing portions are spaced apart along the second direction; The buckle assembly can be detachably connected to the fixing portion.

4. The static pressure clamp according to claim 3, characterized in that The fastening assembly includes a second fitting portion and a hinged cover, wherein the second fitting portion can fit with the side of the second splint facing away from the first splint, and the second fitting portion can be detachably connected to the fixing portion; The hinged cover is arranged on a side of the second fitting portion facing away from the first splint; The elastic portion is hinged to the hinged cover, and the hinged cover and the second fitting portion are hinged to each other at the same end in the second direction.

5. The static pressure clamp according to claim 4, characterized in that: The second fitting portion includes a fitting body, a connecting body, and a first hinged ear. The fitting body is used to fit with the side of the second splint facing away from the first splint. The connecting body extends along the first direction toward the side where the first splint is located. The first hinged ear is provided on the connecting body. The hinged cover comprises a cover body and a second hinged ear connected to each other, the cover body is provided on a side of the fitting body facing away from the first splint, and the second hinged ear extends from the cover body toward the side where the first splint is located; The first hinged ear is provided at one end of the fitting body and extends along one side where the first splint is located. The first hinged ear is hinged to the second hinged ear.

6. The static pressure clamp according to claim 5, characterized in that The fitting body is provided with a first limiting portion, and the cover body is provided with a second limiting portion. When the hinged cover and the second fitting portion are in a buckled state, the first limiting portion and the second limiting portion are engaged with each other.

7. The static pressure clamp according to claim 3, characterized in that: The connecting lock includes two elastic parts, which are respectively arranged at two ends of the first fitting part and the buckling component in a third direction, and the third direction is perpendicular to the plane determined by the first direction and the second direction.

8. The static pressure clamp according to any one of claims 1 to 7, characterized in that: The clamping assembly further includes a flexible pad, and the surfaces of the first clamping plate and the second clamping plate facing each other are both covered with the flexible pad.

9. The static pressure clamp according to any one of claims 1 to 7, characterized in that: The clamping assembly is provided with a through hole, and the through hole passes through the first clamping plate and the second clamping plate in sequence along the first direction.

10. A static pressure device, characterized in that: A static pressure clamp comprising the static pressure clamp according to any one of claims 1 to 9.

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