Clamping device

Abstract

A clamping device is used for clamping a cover plate component to a frame assembly and comprises a clamping component and a locking assembly. The clamping component abuts against the frame assembly and the cover plate component. A clamping gap is formed between the clamping component and the cover plate component, and the locking component acts on the clamping component and the cover plate component to increase or decrease the clamping gap, so that the cover plate component and the frame component are mutually released or clamped; one of the clamping component and the frame assembly is provided with a positioning anti-falling hook, and the other one is provided with a positioning groove. The clamping component is operated so that the positioning anti-disengaging hook can enter the positioning groove, and therefore the clamping component is connected to the frame assembly in a limited mode. According to the utility model, the pre-positioning function of the clamping component and the frame assembly is realized and the falling force is counteracted by virtue of the matched use of the positioning anti-falling hook and the positioning groove, namely the clamping component does not need to be dragged by hands or tools, and the clamping component and the frame assembly are not separated, so that a user can operate the locking assembly conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of products of attached protective cover bodies, in particular to a clamping device. Background Art

[0002] The compartment of the cargo transport tool is open, so a compartment cover is required to cover the items in the compartment. The existing shielding system for covering the cargo transport tool compartment generally includes a covering layer for covering the cargo transport tool compartment, the front end of the covering layer is connected to the front frame edge, and the rear end of the covering layer is connected to the rear frame edge; it also includes a driving side frame edge and a passenger side frame edge respectively arranged at the upper ends of the two sides of the cargo transport tool compartment, the two ends of the front frame edge are respectively fixed to the head of the driving side frame edge and the head of the passenger side frame edge, and the tail of the driving side frame edge and the passenger side frame edge is provided with a fixing mechanism. When in use, the rear frame edge is pulled back, and the two ends of the front frame edge are fixed to the fixing mechanism after the covering layer covers the compartment. The general structure of the fixing mechanism is: a card seat is respectively arranged at the tail of the driving side frame edge and the passenger side frame edge, and the card seat has a card slot opening backwards, and the rear frame edge has a card tongue, and the card tongue is inserted into the card slot.

[0003] The existing cargo transport tool is equipped with a box cover and a frame assembly, and the box cover is connected to the left and right side panels of the rear box through the frame assembly, so as to realize the installation of the box cover. A box cover in the prior art usually uses a fixing frame to connect the box and the box cover together, and a pressing plate and bolts are arranged under the frame and the box cover, and the frame and the box cover are fixed and pressed by the pressing plate and the bolts. The pressing plate is flat, and although it can apply a pressing force to the frame, the pressing plate lacks positioning with the frame, resulting in poor pressing effect and unstable cooperation between the frame and the box cover.

[0004] Earlier prior art example 1, referring to patent document CN213199431U, discloses a split waterproof fixing frame for a compartment cover, including a frame body, the frame body is fixed on the inner side of the compartment side panel, the frame body includes a mounting surface, a support member made of a flexible sealing material is provided on the mounting surface, the upper end of the support member abuts against the compartment cover, the abutment point between the support member and the compartment cover is higher than the mounting surface, and a stop surface is also provided on the side of the mounting surface away from the support member. During use, the structure between the cover plate and the frame assembly of example 1 is relatively simple, so it performs poorly in terms of structural strength, sealing performance, and supporting performance.

[0005] In order to improve Example 1, a prior art example 2 is proposed. Referring to patent document CN216268621U, a support assembly for a compartment cover is disclosed, wherein the compartment cover comprises a frame and a compartment cover connected to each other, and the support assembly comprises a locking block and a clamping assembly, wherein the locking block has a first branch supported at the bottom of the compartment cover and a second branch supported at the bottom of the frame, wherein the second branch is formed with a positioning cavity for accommodating the bottom of the frame, and the clamping assembly drives the second branch to clamp the frame on the compartment cover to form a first support point, and drives the first branch to abut against the bottom of the compartment cover to form a second support point, thereby increasing the supporting and positioning effect of the locking block on the frame and the compartment cover.

[0006] Although Example 2 solves the sealing and support defects in Example 1, it still has certain problems, such as inconvenience in installation. This is mainly reflected in the lack of effective pre-positioning structure between the lock block and the frame during the installation process. Therefore, when operating the clamping assembly, it is necessary to continuously hold the lock block by hand or with a tool to prevent the lock block from loosening from the frame. At the same time, this operation method results in low positional accuracy between the lock block and the frame, which easily leads to incomplete assembly. Summary of the invention

[0007] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides a clamping device.

[0008] The utility model solves the technical problem with a technical solution of: a clamping device for clamping a cover plate component to a frame component, the clamping device comprising a clamping component and a locking component;

[0009] Wherein, the clamping member can abut against the frame assembly and the cover member respectively;

[0010] There is a clamping gap between the clamping member and the cover member, and the locking assembly acts on the clamping member and the cover member to increase or decrease the clamping gap, thereby releasing or clamping the cover member and the frame assembly to each other;

[0011] One of the clamping member and the frame assembly is provided with a positioning anti-detachment hook, and the other is provided with a positioning groove; the clamping member is operated so that the positioning anti-detachment hook enters the positioning groove, thereby restricting the clamping member to be connected to the frame assembly.

[0012] Regarding the specific structural scheme of the positioning anti-slip hook, the positioning anti-slip hook has an extension section and a hook section, the positioning groove has an opening area and a positioning support area, the extension section corresponds to entering the opening area, the hook section corresponds to being inserted into the positioning support area, and the hook section abuts against the inner wall of the positioning support area to form a limited anti-slip fit.

[0013] Preferably, the transverse dimension of the opening area is greater than or equal to the transverse dimension of the hook section, so that the hook section can enter the positioning support area through the opening area.

[0014] The specific structural scheme of the clamping member is that the clamping member is in a "C" shape as a whole, one end of the clamping member has a first arm, the other end has a second arm, and a receiving area is formed between the first arm and the second arm;

[0015] A further structural solution for the clamping member is that a separating rib is protruding from the clamping member, and the separating rib separates the accommodating area into a first accommodating area and a second accommodating area, the positioning anti-detachment hook and the frame assembly are correspondingly arranged in the first accommodating area, and the locking assembly is correspondingly arranged in the second accommodating area.

[0016] More preferably, the upper end of the second support arm is formed with a straight end surface, and the straight end surface can abut against the lower end of the cover plate member to form a second cover plate support point;

[0017] The lower end of the frame assembly can abut against the bottom surface of the first accommodating area to form a frame support point.

[0018] The transverse dimension of the first accommodating area is D1, the transverse dimension of the frame assembly entering the first accommodating area is D2, the transverse dimension of the positioning anti-detachment hook is D3, and D1≥D2+D3 is satisfied.

[0019] The specific structural scheme of the locking assembly is that the locking assembly includes a threaded fastener, an abutment seat and an adjustment knob;

[0020] The clamping member is provided with a through hole, the cover member is provided with a fixing hole, and the threaded fastener passes through the through hole and is screwed into the fixing hole;

[0021] The abutment seat is threadedly connected to one end of the threaded fastener, and the abutment seat can be fixedly connected to the lower end of the cover plate component to form a third cover plate support point;

[0022] The adjusting knob is fixedly connected to the other end of the threaded fastener, and the adjusting knob is turned to drive the threaded fastener to rotate, and the adjusting knob can abut against the lower end of the clamping member, so that the clamping member has a movement tendency to move toward the cover member.

[0023] The specific structural scheme of the frame assembly is that the frame assembly includes a first frame and a second frame that are detachable from each other, and a sealing component;

[0024] The first frame is provided with a first sealing groove, the second frame is provided with a second sealing groove, the lower end of the sealing member is provided with a first sealing rib and a second sealing rib, the first sealing rib is embedded in the first sealing groove, and the second sealing rib is embedded in the second sealing groove;

[0025] A plurality of sealing convex ribs are convexly arranged on the upper end of the sealing component, and the sealing convex ribs can abut against the cover plate component to form a sealing fit, and the abutment point between the sealing component and the cover plate component forms a first cover plate supporting point.

[0026] Furthermore, the first frame is installed on the upper end of the second frame through a plug-in structure;

[0027] The outer side of the first frame has a first vertical edge, and the upper end of the first vertical edge extends outward to form a straight and horizontal overlap;

[0028] The outer side of the second frame has a second vertical edge, the second vertical edge is located on the inner side of the first vertical edge, and the second vertical edge has a toothed inner wall.

[0029] In some preferred embodiments of the utility model, a drainage assembly is also included, and the drainage assembly includes a drainage frame and a sewer pipe;

[0030] The drainage frame is connected to the end of the frame assembly, and a water flow channel that is interconnected is formed between the drainage frame and the frame assembly. The water flow channel is located outside the sealing component, and the water flow channel is interconnected with the sewer pipe.

[0031] The beneficial effect of the utility model is that: it has the structural technical features of the positioning anti-detachment hook and the positioning groove, and by means of the coordinated use of the positioning anti-detachment hook and the positioning groove, the pre-positioning function of the clamping member and the frame assembly can be realized to offset the falling force, that is, it is not necessary to drag the clamping member with hands or tools, and the clamping member and the frame assembly will not be separated, so that it is convenient for users to operate the locking assembly. At the same time, before operating the locking assembly, the user can first adjust the relative position relationship between the clamping member and the frame assembly to improve the position accuracy and assembly accuracy between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the cover plate component and the frame component being clamped to each other.

[0033] Figure 2 It is a structural schematic diagram of the cover member and the frame assembly being released from each other (the clamping member is not disassembled).

[0034] Figure 3It is a structural schematic diagram of the mutual release of the cover member and the frame assembly (the clamping member is disassembled).

[0035] Figure 4 It is an exploded view of the utility model.

[0036] Figure 5 It is a cross-sectional view of the utility model.

[0037] Figure 6 It is a structural schematic diagram of the clamping component in the utility model.

[0038] Figure 7 It is a structural schematic diagram of the first frame in the utility model.

[0039] Figure 8 It is a structural schematic diagram of the second frame in the utility model.

[0040] Fig. 9 It is a structural schematic diagram of the sealing component in the utility model.

[0041] Fig.10 It is a schematic diagram of the local structure when the positioning anti-drop hook extends into the positioning groove.

[0042] Fig.11 It is a schematic diagram of the local structure when the positioning anti-drop hook is separated from the positioning groove.

[0043] Fig.12 is a schematic diagram of the drainage assembly.

[0044] In the figure: 1, cover plate member; 1a, clamping gap; 11, fixing hole; 2, frame assembly; 21, first frame; 211, first sealing groove; 212, plug-in structure; 213, first vertical edge; 214, overlap; 22, second frame; 221, positioning groove; 2211, opening area; 2212, positioning support area; 222, second sealing groove; 223, second vertical edge; 224, toothed inner wall; 23, sealing member; 231, first sealing rib; 232, second Sealing insert; 233, sealing convex rib; 3, clamping member; 31, positioning anti-drop hook; 311, extension section; 312, hook section; 32, first arm; 33, second arm; 331, straight end face; 34, partition rib body; 3a, first accommodating area; 3b, second accommodating area; 35, through hole; 4, locking assembly; 41, threaded fastener; 42, abutment seat; 43, adjustment knob; 5, drainage assembly; 51, drainage frame; 52, sewer pipe; 53, water flow channel. DETAILED DESCRIPTION

[0045] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments are only specific descriptions of the present invention, and their purpose is to allow those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limiting the present invention.

[0046] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Embodiment 1

[0049] Reference Figures 1 to 11 , a clamping device for clamping a cover member 1 to a frame assembly 2, the clamping device comprising a clamping member 3 and a locking assembly 4;

[0050] Wherein, the clamping member 3 can abut against the frame assembly 2 and the cover member 1 respectively;

[0051] Reference Figure 1 to Figure 3 There is a clamping gap 1a between the clamping member 3 and the cover member 1, and the locking assembly 4 acts on the clamping member 3 and the cover member 1 to increase or decrease the clamping gap 1a, so that the cover member 1 and the frame assembly 2 are released or clamped to each other;

[0052] Reference Figure 10-11 One of the clamping member 3 and the frame assembly 2 has a positioning anti-detachment hook 31, and the other has a positioning groove 221; the clamping member 3 is operated so that the positioning anti-detachment hook 31 enters the positioning groove 221, thereby restricting the clamping member 3 to be connected to the frame assembly 2.

[0053] The above content is the basic scheme of the utility model. Taking the application of the clamping device to the truck bed as an example, its usage is: in the initial situation, the clamping gap 1a is large, so the cover member 1 and the frame assembly 2 are in an unclamped state. At this time, the user assembles the frame assembly 2 to the corresponding position of the truck bed, and then aligns the positioning anti-detachment hook 31 with the positioning groove 221 and inserts it, so that the clamping member 3 and the frame assembly 2 are connected to each other, and after adjusting the relative position of the clamping member 3 and the frame assembly 2, it plays a pre-positioning role, and then operates the locking assembly 4 to reduce the clamping gap 1a, and under the action of the locking assembly 4 and the clamping member 3, the cover member 1 and the frame assembly 2 are clamped to each other.

[0054] It should be noted that, unlike the prior art, the present invention has the structural technical features of the positioning anti-detachment hook 31 and the positioning groove 221. By means of the coordinated use of the positioning anti-detachment hook 31 and the positioning groove 221, the pre-positioning function of the clamping member 3 and the frame assembly 2 can be realized to offset the falling force, that is, it is not necessary to drag the clamping member 3 with hands or tools, and the clamping member 3 and the frame assembly 2 will not be separated, so that it is convenient for users to operate the locking assembly 4. At the same time, before operating the locking assembly 4, the user can first adjust the relative position relationship between the clamping member 3 and the frame assembly 2 to improve the position accuracy and assembly accuracy between the two.

[0055] Embodiment 2

[0056] Based on the structural scheme of the first embodiment, this embodiment provides a more preferred solution for each component. Figures 1 to 11 , as follows:

[0057] 1. Positioning anti-drop hook 31: Refer to Figure 6 , which has an extension section 311 and a hook section 312. The positioning groove 221 has an opening area 2211 and a positioning support area 2212. The extension section 311 corresponds to entering the opening area 2211, and the hook section 312 corresponds to being inserted into the positioning support area 2212, and the hook section 312 abuts against the inner wall of the positioning support area 2212 to form a limited anti-slip fit.

[0058] The opening area 2211 is provided to facilitate the positioning of the anti-drop hook 31 to enter or leave the positioning groove 221. It is worth mentioning that the transverse dimension of the opening area 2211 is greater than or equal to the transverse dimension of the hook section 312 to provide sufficient passing space, so that the hook section 312 can smoothly pass through the opening area 2211 and enter the positioning support area 2212.

[0059] 2. Clamping member 3: Reference Figure 1 to Figure 6, preferably, the whole is in a "C" shape. Wherein, the clamping member 3 has a first arm 32 at one end and a second arm 33 at the other end, and a receiving area is formed between the first arm 32 and the second arm 33;

[0060] Furthermore, a separation rib 34 is protruding from the clamping member 3, and the separation rib 34 divides the accommodation area into a first accommodation area 3a and a second accommodation area 3b, thereby realizing spatial partitioning to better realize the corresponding functions. More specifically, the positioning anti-detachment hook 31 and the frame assembly 2 are correspondingly arranged in the first accommodation area 3a, and the locking assembly 4 is correspondingly arranged in the second accommodation area 3b.

[0061] It is worth mentioning that the upper end of the second arm 33 is formed with a straight end surface 331, which can abut against the lower end of the cover member 1, with a larger contact area, to form a second cover support point, so that the clamping member 3 can provide a more reliable support effect on the cover member 1. On the other hand, the lower end of the frame assembly 2 can abut against the bottom surface of the first accommodating area 3a to form a frame support point, so that the clamping member 3 can provide a more reliable support effect on the frame assembly 2.

[0062] Reference Figure 5 Preferably, the lateral dimension of the first accommodating area 3a is D1, the lateral dimension of the frame assembly 2 entering the first accommodating area 3a is D2, and the lateral dimension of the positioning anti-detachment hook 31 is D3, and D1≥D2+D3 is satisfied to eliminate structural interference, so that the positioning anti-detachment hook 31 can enter and exit the positioning groove 221 normally.

[0063] 3. Locking assembly 4: Refer to Figure 4-5 , including a threaded fastener 41, abutment seat 42 and an adjustment knob 43.

[0064] Among them, refer to Figure 6 The clamping member 3 is provided with a through hole 35, the cover member 1 is provided with a fixing hole 11, the threaded fastener 41 passes through the through hole 35 and is screwed into the fixing hole 11, and after the threaded fastener 41 is screwed into the fixing hole 11, the locking assembly 4 and the cover member 1 form a fixed fit. Preferably, the size of the through hole 35 is larger than the size of the threaded fastener 41, so as to facilitate the adjustment of the position of the threaded fastener 41.

[0065] The abutment seat 42 is threadedly connected to one end of the threaded fastener 41, and the abutment seat 42 can be fixedly connected to the lower end of the cover member 1 to form a third cover support point. A larger contact area is formed between the abutment seat 42 and the cover member 1, so that the abutment seat 42 (locking assembly 4) provides a closer support effect to the cover member 1.

[0066] The adjusting knob 43 is fixedly connected to the other end of the threaded fastener 41, and the adjusting knob 43 is rotated to drive the threaded fastener 41 to rotate, and the adjusting knob 43 can abut against the lower end of the clamping member 3, so that the clamping member 3 has a movement tendency to move toward the cover member 1. That is, when the adjusting knob 43 is rotated forward, the adjusting knob 43 abuts against the clamping member 3 and makes the clamping member 3 close to the cover member 1, reducing the clamping gap 1a, so that the cover member 1 and the frame assembly 2 are clamped together; when the adjusting knob 43 is rotated backward, the adjusting knob 43 is away from the cover member 1, and the clamping member 3 is also away from the cover member 1 after losing the force of the adjusting knob 43 and under the action of gravity, increasing the clamping gap 1a, so that the cover member 1 and the frame assembly 2 are released from each other.

[0067] 4. Framework Component 2: Reference Figure 1 to Figure 4 , including a first frame 21 and a second frame 22 that are detachable from each other, and a sealing member 23.

[0068] The first frame 21 is provided with a first sealing groove 211, the second frame 22 is provided with a second sealing groove 222, and the lower end of the sealing member 23 is provided with a first sealing rib 231 and a second sealing rib 232. The first sealing rib 231 is embedded in the first sealing groove 211, so that a sealing fit is formed between the sealing member 23 and the first frame; the second sealing rib 232 is embedded in the second sealing groove 222, so that a sealing fit is formed between the sealing member 23 and the second frame; the upper end of the sealing member 23 is provided with a plurality of sealing ribs 233, the sealing ribs 233 can abut against the cover member 1 and form a sealing fit, and the abutment between the sealing member 23 and the cover member 1 forms a first cover support point.

[0069] The first sealing rib 231, the second sealing rib 232 and the sealing convex rib 233 form a sealed fit between the cover member 1 and the frame assembly 2. More specifically, they play a role in sealing and isolating the inside and outside to prevent rainwater, impurities, etc. from entering the inner space.

[0070] Preferably, the first frame 21 is installed on the upper end of the second frame 22 through the plug-in structure 212. Of course, the first frame 21 is connected to the second frame 22 by other structural means such as a magnetic structure, a snap structure, etc., which is not particularly limited here.

[0071] Further, refer to Figure 7The first frame 21 has a first vertical edge 213 on the outside, and the first vertical edge 213 can be placed against the side wall of the truck bucket. In addition, the upper end of the first vertical edge 213 extends outward to form a straight and horizontal overlap 214, and the overlap 214 can overlap the upper end surface of the truck bucket. Through the cooperation between the first vertical edge 213 and the overlap 214 and the truck bucket, the frame assembly 2 can be placed against the truck bucket.

[0072] On the other hand, refer to Figure 8 The outer side of the second frame 22 has a second vertical edge 223, which is located on the inner side of the first vertical edge 213, and the second vertical edge 223 has a toothed inner wall 224. With the help of a pressure plate assembly (refer to patent document CN213199431U), the pressure plate assembly is clamped between the toothed inner wall 224 and the side wall of the truck bucket to fix the frame assembly 2 and the side wall of the truck bucket together. In addition, the provision of the toothed inner wall 224 can provide greater friction, making the connection between the pressure plate assembly and the second vertical edge 223 more stable and reliable.

[0073] Embodiment 3

[0074] Taking the truck bed as an example, the actual use environment is mostly outdoors. Therefore, once it rains, rainwater will fall onto the cover component 1 and the frame component 2. If it is not discharged in time, the rainwater will accumulate and easily enter the interior of the truck bed, causing the items stored inside to get wet.

[0075] In order to enrich the use functions and cope with rainy weather, based on the structure of any of the above embodiments, refer to Fig.11 , further comprising a drainage assembly 5, wherein the drainage assembly 5 comprises a drainage frame 51 and a sewer pipe 52;

[0076] The drainage frame 51 is connected to the end of the frame assembly 2, and a water flow channel 53 that is interconnected is formed between the drainage frame 51 and the frame assembly 2. The water flow channel 53 is located on the outside of the sealing component 23, and the water flow channel 53 is connected to the sewer pipe 52.

[0077] When in use, rainwater will fall onto the cover member 1 and the frame assembly 2, and then flow into the sewer pipe 52 along the water flow channel 53, and be discharged to the outside through the sewer pipe 52, so as to drain water in time, prevent rainwater accumulation, and prevent rainwater from entering the inner side of the sealing member 23, so as to keep the interior of the truck bed in a dry environment at all times.

[0078] It is worth noting that other technical solutions of the present invention belong to the prior art and will not be described in detail.

[0079] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the concept of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A clamping device for clamping a cover member (1) to a frame member (2), the clamping device comprising a clamping member (3) and a locking member (4); in, The clamping member (3) can be respectively abutted against the frame assembly (2) and the cover member (1); A clamping gap (1a) is provided between the clamping member (3) and the cover member (1), and the locking assembly (4) acts on the clamping member (3) and the cover member (1) to increase or decrease the clamping gap (1a), thereby causing the cover member (1) and the frame assembly (2) to release or clamp each other; The invention is characterized in that: one of the clamping member (3) and the frame assembly (2) is provided with a positioning anti-detachment hook (31), and the other is provided with a positioning groove (221); the clamping member (3) is operated so that the positioning anti-detachment hook (31) enters the positioning groove (221), thereby restricting the clamping member (3) to be connected to the frame assembly (2).

2. The clamping device according to claim 1, characterized in that: The positioning anti-detachment hook (31) comprises an extending section (311) and a hook section (312); the positioning groove (221) comprises an opening area (2211) and a positioning support area (2212); the extending section (311) corresponds to entering into the opening area (2211); the hook section (312) corresponds to being inserted into the positioning support area (2212); and the hook section (312) abuts against the inner wall of the positioning support area (2212) to form a position-limiting anti-detachment fit.

3. The clamping device according to claim 2, characterized in that: The transverse dimension of the opening area (2211) is greater than or equal to the transverse dimension of the hook section (312), so that the hook section (312) can enter the positioning support area (2212) through the opening area (2211).

4. The clamping device according to claim 1, characterized in that: The clamping member (3) is in a "C" shape as a whole, one end of the clamping member (3) has a first arm (32), the other end has a second arm (33), and a receiving area is formed between the first arm (32) and the second arm (33); The clamping member (3) is also provided with a separating rib (34) protruding therefrom, and the separating rib (34) separates the accommodating area into a first accommodating area (3a) and a second accommodating area (3b); the positioning anti-detachment hook (31) and the frame assembly (2) are correspondingly arranged in the first accommodating area (3a), and the locking assembly (4) is correspondingly arranged in the second accommodating area (3b).

5. The clamping device according to claim 4, characterized in that: The upper end of the second support arm (33) is formed with a straight end surface (331), and the straight end surface (331) can abut against the lower end of the cover plate component (1) to form a second cover plate support point; The lower end of the frame assembly (2) can abut against the bottom surface of the first accommodating area (3a) to form a frame support point.

6. The clamping device according to claim 4, characterized in that: The transverse dimension of the first accommodating area (3a) is D1, the transverse dimension of the frame assembly (2) entering the first accommodating area (3a) is D2, and the transverse dimension of the positioning anti-detachment hook (31) is D3, and D1≥D2+D3 is satisfied.

7. The clamping device according to claim 1, characterized in that: The locking assembly (4) comprises a threaded fastener (41), an abutment seat (42) and an adjustment knob (43); The clamping member (3) is provided with a through hole (35), the cover member (1) is provided with a fixing hole (11), and the threaded fastener (41) passes through the through hole (35) and is screwed into the fixing hole (11); The abutment seat (42) is threadedly connected to one end of the threaded fastener (41), and the abutment seat (42) can be fixedly connected to the lower end of the cover plate component (1) to form a third cover plate support point; The adjusting knob (43) is fixedly connected to the other end of the threaded fastener (41), and the adjusting knob (43) is rotated to drive the threaded fastener (41) to rotate, and the adjusting knob (43) can abut against the lower end of the clamping member (3), so that the clamping member (3) has a movement tendency to move toward the cover member (1).

8. The clamping device according to claim 1, characterized in that: The frame assembly (2) comprises a first frame (21) and a second frame (22) which are detachable from each other, and a sealing component (23); The first frame (21) is provided with a first sealing groove (211), the second frame (22) is provided with a second sealing groove (222), the lower end of the sealing member (23) is provided with a first sealing rib (231) and a second sealing rib (232), the first sealing rib (231) is embedded in the first sealing groove (211), and the second sealing rib (232) is embedded in the second sealing groove (222); A plurality of sealing convex ribs (233) are convexly provided on the upper end of the sealing component (23), and the sealing convex ribs (233) can abut against the cover plate component (1) to form a sealing fit, and the abutment point between the sealing component (23) and the cover plate component (1) forms a first cover plate supporting point.

9. The clamping device according to claim 8, characterized in that: The first frame (21) is installed on the upper end of the second frame (22) via a plug-in structure (212); The outer side of the first frame (21) has a first vertical edge (213), and the upper end of the first vertical edge (213) extends outward to form a straight and horizontal overlap edge (214); The outer side of the second frame (22) has a second vertical edge (223), the second vertical edge (223) is located on the inner side of the first vertical edge (213), and the second vertical edge (223) has a toothed inner wall (224).

10. The clamping device according to claim 8, characterized in that: Also included is a drainage assembly (5), wherein the drainage assembly (5) includes a drainage frame (51) and a drainage pipe (52); The drainage frame (51) is connected to the end of the frame assembly (2), and a water flow channel (53) that is interconnected is formed between the drainage frame (51) and the frame assembly (2). The water flow channel (53) is located outside the sealing component (23), and the water flow channel (53) and the sewer pipe (52) are interconnected.

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