Limiting clamp

Abstract

The limiting clamp comprises a left clamping plate and a right clamping plate, the left clamping plate comprises a left side plate, an abutting plate and a first top plate, and the left side plate and the abutting plate are connected through the first top plate; the right clamping plate comprises a right side plate and a second top plate, and the second top plate is connected with the first top plate through a threaded connecting piece; the abutting plate inclines to the first top plate and abuts against the right clamping plate, and when the threaded connecting piece drives the second top plate to be close to the first top plate, the right side plate is close to the left side plate under the abutting action of the abutting plate. According to the limiting clamp, the clamping stability is improved, and the rail is not prone to being damaged by clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of track limiting, in particular to a limiting clip. Background Art

[0002] When sliding windows and sliding doors are in use, it is often necessary to limit the position of the doors and windows. Generally, a limit lock is set on the door and window slide rail to limit the position of the doors and windows.

[0003] Most of the existing limit locks lock the limit lock from the side of the track. For example, the utility model patent with the application number CN202122108662.9 discloses an anti-slip sliding window limit lock, which includes a sliding window lock catch with an N-shaped structure. A screw hole is provided in the middle of the side surface of the sliding window lock catch. The anti-slip locking screw is installed in the screw hole of the sliding window lock catch, and the sliding window lock catch is locked by rotating the anti-slip locking screw, so as to achieve the purpose of limiting the position of the sliding window. However, in this scheme, since the locking screw is operated from the side, and the space on the side of the track is limited, it brings inconvenience to installation. Moreover, in this scheme, the anti-slip locking screw presses against the side of the track to lock, which is easy to damage the side of the track.

[0004] The utility model patent with the application number CN202322612865.1 discloses a track limiting device without drilling (as Figure 1 shown), in which both the left clip and the right clip include a top plate and a side plate, and the bending angle of the side plate relative to the top plate is less than 90 degrees. The fixing screw passes through the through hole of the top plate of the right clip from top to bottom and is connected to the threaded hole of the top plate of the left clip. When the fixing screw is tightened, the top plates of the two clips are mutually attached. Since the bending angles of both the left clip and the right clip are less than 90 degrees, the side plates of the left clip and the right clip respectively contract inwards, so as to clamp the track. The fixing screw of this scheme can be operated from above, which greatly improves the operation convenience, and the manufacturing cost of this scheme is relatively low. However, this scheme also has problems: since the working principle of this scheme is to rely on the angle change of the left clip and the right clip to achieve clamping, this results in that in the final clamping state, both the left clip and the right clip are in an inclined state, that is, only the bottom parts of the left clip and the right clip clamp the track, and not the entire side plates participate in clamping, which greatly reduces the clamping stability and increases the risk of damaging the track. Summary of the Utility Model

[0005] An object of the utility model is to provide a limiting clip, in which when the second top plate approaches the first top plate, the right clamping plate slides on the inclined abutting plate. When the right clamping plate generates a vertical displacement, it will also generate a horizontal displacement, so that the right side plate approaches the left side plate, and the left side plate and the right side plate clamp the track, so as to achieve the purpose of limiting the window.

[0006] Another object of the present utility model is to provide a limit clip, wherein when clamping the rail, both the left side plate and the right side plate will fit against the side surface of the rail, achieving surface contact. The pressure exerted by the left side plate and the right side plate on the rail is surface pressure, greatly improving the clamping stability. And because the contact stress of surface contact is relatively low, it is less likely to damage the rail under the condition of applying the same clamping force.

[0007] Another object of the present utility model is to provide a limit clip, wherein the threaded connecting piece can be operated from above, making the operation more convenient.

[0008] Another object of the present utility model is to provide a limit clip, wherein when the right clamping plate is at the left extreme position and the right extreme position, the threaded connecting piece will not interfere with the kidney-shaped hole.

[0009] Another object of the present utility model is to provide a limit clip, wherein the corner part between the second top plate of the right clamping plate and the right side plate is abutted by the abutting plate, so that when the right clamping plate abuts against different positions of the abutting plate, the abutted part of the right clamping plate remains unchanged, and the magnitude and angle of the abutting force are basically unchanged.

[0010] Another object of the present utility model is to provide a limit clip, wherein when the threaded connection hole is connected to the end of the threaded connecting piece, the corner part abuts against the end of the abutting plate, so as to prevent the second top plate from detaching from the threaded connecting piece due to the insufficient length of the threaded connecting piece, and prevent the clamping stability from being reduced due to the excessive length of the threaded connecting piece.

[0011] Another object of the present utility model is to provide a limit clip, wherein the length of the abutting plate is less than the length of the first top plate, thereby avoiding interference with the adjacent window frame due to the excessive length of the abutting plate.

[0012] Another object of the present utility model is to provide a limit clip, wherein the second top plate is connected to the first top plate through two threaded connecting pieces, improving the clamping force, and the clamping force at the front and rear ends of the limit clip can be adjusted by controlling the tightening degree of the two threaded connecting pieces, making the clamping force distribution more uniform, thereby improving the clamping stability and the limiting performance of the limit clip.

[0013] Another object of the present utility model is to provide a limit clip, wherein when the left side plate and the right side plate clamp the rail, both the left side plate and the right side plate are in a vertical state, and both the first top plate and the second top plate are in a horizontal state, which is beneficial to improving the parallelism between the left side plate and the right side plate in the clamped state, thereby improving the clamping stability.

[0014] Another object of the present utility model is to provide a limit clip, wherein the inclination angle is controlled to be between 40° - 75°, so that the right clamping plate can slide smoothly along the abutting plate, and the right clamping plate has appropriate movement strokes in both the horizontal and vertical directions.

[0015] Another object of the present utility model is to provide a limit clip, wherein gaskets are detachably arranged on the inner sides of the left side plate and / or the right side plate, so that the limit clip can be adapted to thinner tracks.

[0016] To achieve at least one of the above objects, the present utility model provides a limit clip, which includes a left clamping plate and a right clamping plate. The left clamping plate includes a left side plate, an abutting plate, and a first top plate connecting the left side plate and the abutting plate; the right clamping plate includes a right side plate and a second top plate, and the second top plate is connected to the first top plate through a threaded connector; the abutting plate is inclined with respect to the first top plate and abuts against the right clamping plate. When the threaded connector drives the second top plate to approach the first top plate, the right side plate approaches the left side plate under the abutting action of the abutting plate.

[0017] Further, a kidney-shaped hole is formed in the first top plate of the left clamping plate, and the threaded connector passes through the kidney-shaped hole and can slide left and right in the kidney-shaped hole.

[0018] Further, the abutting plate is inclined downward with respect to the first top plate, and the corner part between the second top plate and the right side plate of the right clamping plate is abutted by the abutting plate.

[0019] Further, a threaded connection hole adapted to the threaded connector is formed in the second top plate, and the threaded connector passes through the kidney-shaped hole and is connected to the threaded connection hole.

[0020] Further, the length of the threaded connector is adapted to the length of the abutting plate, so that when the threaded connection hole is connected to the end of the threaded connector, the corner part abuts against the end of the abutting plate.

[0021] Further, the length of the abutting plate is less than the length of the first top plate.

[0022] Further, both the left clamping plate and the right clamping plate extend in a first direction. Two kidney-shaped holes are formed in the first top plate, and the two kidney-shaped holes are arranged side by side in the first direction; two threaded connection holes are formed in the second top plate, and the two threaded connection holes are arranged in the first direction; each kidney-shaped hole is respectively provided with a threaded connector.

[0023] In some embodiments, the left side plate is perpendicular to the first top plate, the right side plate is perpendicular to the second top plate, and the abutting plate is inclined downward with respect to the first top plate, and the inclination angle is between 40° and 75°.

[0024] In some embodiments, both the left clamping plate and the right clamping plate are integrally formed by sheet metal parts.

[0025] In some embodiments, gaskets are detachably provided on the inner sides of the left side plate and / or the right side plate.

[0026] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. The above contents of each utility model can be combined arbitrarily, and these and other purposes of the present utility model will be fully reflected by the following detailed description and the drawings.

[0027] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only 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.

[0029] Figure 1 is a schematic diagram of the clamping process of the track limiting device in the prior art;

[0030] Figure 2 is a schematic diagram of the structure of the limiting clip according to an embodiment of the present utility model;

[0031] Figure 3 is an exploded view of the limiting clip according to an embodiment of the present utility model;

[0032] Figure 4 is a cross-sectional view of the limiting clip when the right clamping plate is located at the left extreme position and the right extreme position respectively according to an embodiment of the present utility model;

[0033] Figure 5 is a cross-sectional view of the operation process of the limiting clip clamping on the track according to an embodiment of the present utility model;

[0034] Figure 6 is a schematic diagram of the gasket assembled on the limiting clip according to an embodiment of the present utility model;

[0035] Figure 7 is a cross-sectional view of the limiting clip with a gasket assembled thereon clamping on the track according to an embodiment of the present utility model.

[0036] Reference Numerals:

[0037] 100. Limit clip; 200. Track; 1. Left clamping plate; 11. Left side plate; 12. Contact plate; 13. First top plate; 131. Kidney-shaped hole; 2. Right clamping plate; 21. Right side plate; 22. Second top plate; 221. Threaded connection hole; 3. Threaded connection piece; 4. Gasket; 41. Back clip. Detailed implementation manner

[0038] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "inner", "outer", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and does not require the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0039] In the description of the specification of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0040] In the description of the specification of the present utility model, unless otherwise clearly specified and limited, terms such as "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the connection inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0042] The locking screw of the existing limit lock needs to be operated from the side, and the space on the side of the track is limited, which brings inconvenience to installation, and the locking screw is prone to damage the side of the track. The utility model patent with the application number CN202322612865.1 discloses a track limit device without punching holes (such as Figure 1As shown in the figure, the fixing screw of this solution can be operated from above, greatly improving the operation convenience. Moreover, this solution clamps the track through the left and right clamping pieces, which is not easy to damage the track, and the manufacturing cost of this solution is relatively low. However, this solution also has problems: Since the working principle of this solution is to rely on the angular change of the left and right clamping pieces to achieve clamping, this results in the left and right clamping pieces being in an inclined state in the final clamping state, causing only the bottom of the left and right clamping pieces to clamp the track, rather than the entire side plate participating in the clamping. This greatly reduces the clamping stability and increases the risk of damaging the track.

[0043] To solve the problems of low clamping stability and the risk of damaging the track in the existing track limiting device, the present utility model provides a limiting clip 100. Please refer to Figures 2 - 7 , and the limiting clip 100 provided by the present utility model will be specifically explained. The limiting clip 100 includes a left clamping plate 1 and a right clamping plate 2. The left clamping plate 1 includes a left side plate 11, an abutting plate 12, and a first top plate 13 connecting the left side plate 11 and the abutting plate 12; the right clamping plate 2 includes a right side plate 21 and a second top plate 22, and the second top plate 22 is connected to the first top plate 13 through a threaded connector 3; the abutting plate 12 is inclined with respect to the first top plate 13 and abuts against the right clamping plate 2. As Figure 4 shown, when the threaded connector 3 drives the second top plate 22 to approach the first top plate 13, the right side plate 21 approaches the left side plate 11 under the abutting action of the abutting plate 12. Among them, the left clamping plate 1 and the right clamping plate 2 can be plate-like structures or structures similar to plate-like structures. In one embodiment, both the left clamping plate 1 and the right clamping plate 2 are integrally bent and formed by sheet metal parts to improve the structural strength of the left clamping plate 1 and the right clamping plate 2 and reduce the manufacturing cost. The threaded connector 3 can be understood as a connector with threads, such as a bolt, etc. The abutting part where the abutting plate 12 abuts against the right clamping plate 2 can be the right side plate 21, the second top plate 22, or the connecting part between the right side plate 21 and the second top plate 22.

[0044] For the limit clip 100 provided by the present utility model, since the abutting plate 12 is inclined to the first top plate 13, when the second top plate 22 approaches the first top plate 13, the right clamping plate 2 slides on the inclined abutting plate 12. While generating a vertical displacement, the right clamping plate 2 will also generate a horizontal displacement, so that the right side plate 21 approaches the left side plate 11, and the left side plate 11 and the right side plate 21 clamp the track 200 to achieve the purpose of limiting the window. Since the movement of the right clamping plate 2 is approximately a translation along the abutting plate 12, the right side plate 21 can remain parallel to the left side plate 11. When clamping the track 200, both the left side plate 11 and the right side plate 21 will fit against the side surface of the track 200, realizing surface contact. The pressure exerted by the left side plate 11 and the right side plate 21 on the track 200 is surface pressure, greatly improving the clamping stability. And because the contact stress of the surface contact is relatively low, it is less likely to damage the track 200 under the condition of applying the same clamping force.

[0045] Moreover, for the limit clip 100 provided by the present utility model, the threaded connector 3 can be operated from above, making the operation more convenient.

[0046] Furthermore, Figure 4 It can be seen that during the movement of the right clamping plate 2 along the abutting plate 12, a horizontal displacement is generated. The threaded connector 3 is connected to the right clamping plate 2 and moves with the right clamping plate 2. To avoid interference between the threaded connector 3 and the first top plate 13 during the movement, as Figure 3 and Figure 4 shown, a waist-shaped hole 131 is formed in the first top plate 13 of the left clamping plate 1. The threaded connector 3 passes through the waist-shaped hole 131 and can slide left and right within the waist-shaped hole 131. As Figure 4 can be seen, the length of the waist-shaped hole 131 is adapted to the horizontal displacement stroke of the right clamping plate 2, so that when the right clamping plate 2 is at the left extreme position and the right extreme position, the threaded connector 3 will not interfere with the waist-shaped hole 131.

[0047] Furthermore, as Figure 4 and Figure 3 shown, the abutting plate 12 is inclined downward relative to the first top plate 13. The corner part between the second top plate 22 and the right side plate 21 of the right clamping plate 2 is abutted by the abutting plate 12, so that when the right clamping plate 2 abuts against different positions of the abutting plate 12, the abutted part of the right clamping plate 2 remains unchanged, and the magnitude and angle of the abutting force are basically unchanged. Further, a large fillet is provided at the corner part between the second top plate 22 and the right side plate 21, and the large fillet is abutted by the abutting plate 12 to reduce the contact stress of the abutment and make the sliding of the right clamping plate 2 along the abutting plate 12 smoother.

[0048] Furthermore, as Figure 3 and Figure 4As shown, the second top plate 22 is provided with a threaded connection hole 221 adapted to the threaded connection member 3, and the threaded connection member 3 passes through the kidney-shaped hole 131 and is connected to the threaded connection hole 221.

[0049] Further, as Figure 4 shown, the length of the threaded connection member 3 is adapted to the length of the abutting plate 12, so that when the threaded connection hole 221 is connected to the end of the threaded connection member 3, the corner portion abuts against the end of the abutting plate 12. This prevents the second top plate 22 from detaching from the threaded connection member 3 due to insufficient length of the threaded connection member 3, and prevents the reduction of clamping stability caused by excessive length of the threaded connection member 3. Specifically, if the length of the threaded connection member 3 is too long, the limit clip 100 will be lifted by the threaded connection member 3, and only the bottom parts of the left side plate 11 and the right side plate 21 participate in clamping, the clamping force decreases, and the area participating in clamping also decreases.

[0050] Further, as Figure 5 shown, before tightening the threaded connection member 3, one can first pinch the outer sides of the left clamping plate 1 and the right clamping plate 2 with fingers, so that the left clamping plate 1 and the right clamping plate 2 are pre-fitted to both sides of the track 200, thereby preventing the right clamping plate 2 from tilting under the pulling force of the threaded connection member 3, ensuring the parallelism between the right side plate 21 and the left side plate 11, and thus improving the clamping stability.

[0051] Further, as Figure 5 shown, when the limit clip 100 is placed on the track 200, the bottom of the threaded connection member 3 abuts against the top surface of the track 200. As the threaded connection member 3 is tightened, the left clamping plate 1 and the right clamping plate 2 gradually clamp the track 200. After clamping the track 200, when the threaded connection member 3 is further screwed, the abutting force between the threaded connection member 3 and the track 200 will increase, and the frictional force between the threaded connection member 3 and the track 200 becomes larger, thereby enhancing the limiting performance of the limit clip 100.

[0052] Further, as Figure 4 shown, the length of the abutting plate 12 is less than the length of the first top plate 13, thereby avoiding interference with adjacent window frames caused by the excessive length of the abutting plate 12. Existing windows generally have window screens and glass windows. Since the window screens are thinner and the glass windows are thicker, the gap reserved between the window screen track and the glass window track is very narrow, and the gap between the glass window tracks is wider. To avoid interference between the limit clip 100 and the window screen, when installing the limit clip 100, the abutting plate 12 needs to be placed on the side away from the window screen to avoid interference between the abutting plate 12 and the window screen.

[0053] Further, as Figure 3 and Figure 2As shown, the left clamping plate 1 and the right clamping plate 2 both extend in the first direction. Two waist-shaped holes 131 are formed in the first top plate 13, and the two waist-shaped holes 131 are arranged side by side in the first direction; two threaded connection holes 221 are formed in the second top plate 22, and the two threaded connection holes 221 are arranged in the first direction; a threaded connection member 3 is respectively disposed in each of the waist-shaped holes 131. Wherein, the first direction is the extending direction of the track 200, and the first direction has been marked in Figure 3 which is marked. In this embodiment, the second top plate 22 is connected to the first top plate 13 through two threaded connection members 3, which improves the clamping force, and the clamping force at the front and rear ends of the limit clip 100 can be adjusted by controlling the tightening degree of the two threaded connection members 3, so that the clamping force is more evenly distributed, thereby improving the clamping stability and the limit performance of the limit clip 100. In other embodiments, the second top plate 22 may also be connected to the first top plate 13 only through one threaded connection member 3, which is applicable to windows with low requirements for limit performance.

[0054] In some embodiments, as Figure 5 shown, the left side plate 11 is perpendicular to the first top plate 13, and the right side plate 21 is perpendicular to the second top plate 22, so that when the left side plate 11 and the right side plate 21 are clamped to the track 200, the left side plate 11 and the right side plate 21 are both in a vertical state, and the first top plate 13 and the second top plate 22 are both in a horizontal state, which is beneficial to improving the parallelism between the left side plate 11 and the right side plate 21 in the clamped state, thereby improving the clamping stability.

[0055] Furthermore, as Figure 5 shown, the abutting plate 12 is inclined downward relative to the first top plate 13. If the inclination angle is too small, that is, the abutting plate 12 is relatively horizontal, it will cause a large friction force between the right clamping plate 2 and the abutting plate 12, and the right clamping plate 2 will slide stuck along the abutting plate 12, and the movement stroke of the right clamping plate 2 in the vertical direction will be short, and the situation of not being able to clamp tightly may occur; if the inclination angle is too large, that is, the abutting plate 12 is relatively vertical, the movement stroke of the right clamping plate 2 in the horizontal direction will be short, which will also lead to poor clamping effect, and if the inclination angle is too large, the movement stroke of the right clamping plate 2 in the vertical direction will be too long, exceeding the length of the threaded connection member 3. Therefore, in this embodiment, the inclination angle is controlled to be between 40°-75°, so that the right clamping plate 2 can slide smoothly along the abutting plate 12, and the right clamping plate 2 has an appropriate movement stroke in both the horizontal and vertical directions. In one embodiment, the inclination angle is 52°.

[0056] To make the limit clip 100 applicable to thinner tracks 200, in some embodiments, as Figure 6 and Figure 7As shown, a gasket 4 is detachably provided on the inner side of the left side plate 11 and / or the right side plate 21. Among them, the gasket 4 can be alternatively provided on the left side plate 11 or the right side plate 21, or can be provided on both. The gasket 4 is provided with a back clip 41, and the gap between the back clip 41 and the gasket 4 is adapted to the thickness of the left side plate 11 and the right side plate 21, so that the back clip 41 is clamped on the outer sides of the left side plate 11 and the right side plate 21. After the gasket 4 is installed, the gap between the left side plate 11 and the right side plate 21 is reduced, so that the limit clip 100 is adapted to a thinner track 200. The thickness of the gasket 4 has multiple specifications to choose from, so that the limit clip 100 is adapted to tracks 200 with more thicknesses.

[0057] In addition, it should be noted that the above embodiments can be combined with each other. For the same or similar concepts or processes, they may not be described in some embodiments again. That is, the technical solutions disclosed in the later (in the order of recording in the text) embodiments should include the technical solutions recorded in this embodiment and the technical solutions in all the embodiments before this embodiment.

[0058] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; 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 recorded in the foregoing embodiments, or equivalently replace 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 limit clamp, characterized in that: include: A left clamping plate, the left clamping plate comprising a left side plate, an abutting plate and a first top plate connecting the left side plate and the abutting plate; A right clamping plate, the right clamping plate comprising a right side plate and a second top plate, the second top plate being connected to the first top plate via a threaded connector; The abutment plate is inclined to the first top plate and abuts against the right clamping plate. When the threaded connector drives the second top plate to approach the first top plate, the right side plate approaches the left side plate under the abutment of the abutment plate.

2. The limit clamp according to claim 1, characterized in that: The first top plate of the left clamping plate is provided with a waist-shaped hole, and the threaded connection piece passes through the waist-shaped hole and can slide left and right in the waist-shaped hole.

3. The limiting clamp according to claim 2, characterized in that: The abutment plate is inclined downward relative to the first top plate, and a corner portion between the second top plate and the right side plate of the right clamping plate is abutted by the abutment plate.

4. The limiting clamp according to claim 3, characterized in that: The second top plate is provided with a threaded connection hole adapted to the threaded connection piece, and the threaded connection piece passes through the waist-shaped hole and is connected to the threaded connection hole.

5. The limiting clamp according to claim 4, characterized in that: The length of the threaded connector is matched to the length of the abutment plate, so that when the threaded connection hole is connected to the end of the threaded connector, the corner portion abuts against the end of the abutment plate.

6. The limiting clamp according to claim 5, characterized in that: The length of the abutting plate is smaller than the length of the first top plate.

7. The limiting clamp according to claim 4, characterized in that: The left clamping plate and the right clamping plate both extend toward the first direction; the first top plate is provided with two waist-shaped holes, which are arranged side by side along the first direction; the second top plate is provided with two threaded connection holes, which are arranged along the first direction; and a threaded connection piece is respectively arranged in each waist-shaped hole.

8. The limiting clamp according to any one of claims 1 to 7, characterized in that: The left side plate is perpendicular to the first top plate, the right side plate is perpendicular to the second top plate, and the abutment plate is inclined downward relative to the first top plate, with an inclination angle between 40° and 75°.

9. The limit clamp according to any one of claims 1 to 7, characterized in that: The left clamping plate and the right clamping plate are both integrally formed by using sheet metal parts.

10. The limiting clamp according to any one of claims 1 to 7, characterized in that: A gasket is detachably provided on the inner side of the left side plate and / or the right side plate.

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