A guide rail clamp

Abstract

The utility model discloses a guide rail clamping seat, include: briquetting, clamping seat main part, locking bolt, spring and guide rail, clamping seat main part is clamped with guide rail, and clamping seat main part includes: the clamping seat top board in clamping seat main part top, the both sides of top board width direction symmetry are provided with clamping seat side plate, and the both sides of clamping seat side plate length direction symmetry are provided with the avoidance slot, and the upper edge of avoidance slot forms height limit surface, and the lower edge forms the clamping groove, and the lower edge of side plate all are inclined to be provided with the lap joint board, and the lower end of lap joint board is mutually butted, and the middle part of top board is provided with the threaded hole, in the installation process, and height limit surface can limit the up-and-down position of clamping seat main part in guide rail, prevents clamping seat main part excessive subsidence and falls into guide rail groove bottom, thereby has promoted the positioning stability of clamping seat main part in guide rail in the installation process, has reduced construction complexity and installation difficulty, and clamping seat main part whole is the plate -like structure stamping integrated moulding, has greatly reduced the usage amount of raw material, has effectively reduced production cost.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic equipment technology, and specifically relates to a guide rail holder. Background Technology

[0002] Solar photovoltaic (PV) power generation systems utilize the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. Photovoltaic panels play a crucial role in this process; they are devices that collect heat when exposed to sunlight, converting light energy into direct current (DC). With societal development and technological advancements, the number of installations in various countries has been increasing year by year. Currently, installing PV systems on various types of rooftops effectively utilizes unused roof space while generating clean energy. However, the roof structures differ across countries and regions, requiring different installation structures.

[0003] For example, Chinese Patent No. CN207766190U discloses a photovoltaic connection mechanism. The key technical points of the solution are: a photovoltaic connection mechanism, including a connecting bolt that passes through a clamping member and a support plate from top to bottom, a snap-fit ​​assembly that is threaded to the tail end of the connecting bolt, the snap-fit ​​assembly being snapped to the inner folded edge of the crossbeam, the snap-fit ​​assembly including a snap-fit ​​block that is threaded to the tail end of the connecting bolt, and a snap-fit ​​piece that is sleeved on the outside of the snap-fit ​​block and snapped to the two inner folded edges. The snap-fit ​​block is rectangular and has a threaded hole in the middle for the connecting bolt to pass through. The width of the snap-fit ​​block is less than the opening distance between the two inner folded edges on the crossbeam, and the length of the snap-fit ​​block is greater than the opening distance between the two inner folded edges and less than the width of the inner cavity of the crossbeam.

[0004] However, in practical applications, to control material costs, the thickness of the snap-fit ​​components is usually optimized to only meet basic connection strength requirements, much smaller than the height of the internal groove of the guide rail. This causes the snap-fit ​​components to easily fall off to the bottom of the guide rail groove during installation, increasing construction complexity and installation difficulty. To address this issue, this application proposes a guide rail clip holder designed to improve positioning stability during installation, prevent components from falling to the bottom of the groove, and reduce material usage through structural optimization, achieving a balance between cost and reliability. Utility Model Content

[0005] This utility model provides a guide rail holder, which aims to solve the problems pointed out in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A guide rail holder includes: a pressure block, a holder body, a locking bolt, a spring, and a guide rail. The holder body is engaged with the guide rail. The locking bolt passes through the pressure block and the spring in sequence and is threadedly connected to the holder body. The holder body includes: a holder top plate located at the top of the holder body; holder side plates are symmetrically arranged on both sides of the top plate in the width direction; clearance grooves are symmetrically arranged on both sides of the holder side plates in the length direction; the upper edge of the clearance groove forms a height limiting surface, and the lower edge forms a snap-fit ​​groove; a rotation limiting surface is vertically arranged on the inner side of the height limiting surface. The lower edges of the side plates are all inclined with overlapping plates, the lower ends of the overlapping plates abut against each other, the top plate has a threaded hole in the middle, and the connection between the card seat top plate, the card seat side plate and the overlapping plates is provided with a transition rounded corner. The upper part of the pressure block is provided with a relief groove, which is used to accommodate the nut of the locking bolt. The depth of the relief groove is 0.9-1.1 times the height of the nut.

[0007] Furthermore, a second support plate is horizontally provided on the top of each of the two side plates of the guide rail. The second support plate is used to cooperate with the height limiting surface. A snap-fit ​​plate is provided on the adjacent side of the second support plate. The lower end of the snap-fit ​​plate is used to cooperate with the snap-fit ​​groove. The opposite sidewall of the snap-fit ​​plate cooperates with the adjacent rotation limiting surface. The width of the card holder body and the distance between the clearance grooves on the side plate of the card holder are less than the distance between the snap-fit ​​plates on the guide rail, so that the card holder body can rotate between the snap-fit ​​plates.

[0008] Furthermore, each of the card slot side plates is provided with a first punch in the middle, the first punch being recessed toward the other card slot side plate, and the distance between the two first punches is adapted to the threaded rod of the locking bolt.

[0009] Furthermore, two second punches are recessed at the connection between the card seat side plate and the overlapping plate, and the second punches are symmetrically distributed at intervals along the width direction of the card seat side plate.

[0010] Furthermore, the two overlapping plates are respectively provided with an overlapping male head and an overlapping female head, and the overlapping male head and the overlapping female head are engaged with each other.

[0011] Furthermore, the upper two sides of the pressure block are symmetrically provided with lower pressure wing plates, and the lower two sides are symmetrically provided with first support plates, forming a receiving groove between the two first support plates. The width of the receiving groove is adapted to the width of the card seat body.

[0012] Furthermore, the lower surface of the pressure plate is threaded with a grounding pin.

[0013] Furthermore, the spring is a variable diameter spring, with the smaller diameter end abutting the lower surface of the pressure block and the larger diameter end abutting the upper surface of the card holder body.

[0014] Furthermore, the main body of the card holder is made of galvanized magnesium-aluminum alloy through stamping and integral molding.

[0015] Compared with the prior art, the present invention has the following technical effects: 1. The guide rail holder of this utility model has symmetrical clearance grooves on both sides of the side plate along the length of the holder. The upper edge of the clearance groove forms a height limiting surface. During installation, the height limiting surface can cooperate with the corresponding part of the guide rail. When the holder body enters the guide rail and is in the pre-installation position, the height limiting surface can restrict the vertical position of the holder body in the guide rail, preventing the holder body from sinking excessively and falling into the bottom of the guide rail groove. In addition, in the pre-installation position, the rotation limiting surface of the holder body cooperates with the opposite side wall of the snap-fit ​​plate, which can prevent the holder body from rotating on the guide rail, thereby improving the positioning stability of the holder body in the guide rail during installation and reducing the construction complexity and installation difficulty.

[0016] 2. The guide rail holder of this utility model has a plate-shaped main body, which is integrally formed by stamping. From a cost control perspective, the plate-shaped structure eliminates the need for large amounts of material in solid blocks, greatly reducing the amount of raw materials used and thus effectively reducing production costs, saving enterprises considerable expenses. In terms of structural stability, the plate-shaped structure of the holder body cleverly incorporates overlapping plates, ensuring the overall structural stability of the holder body during use, preventing deformation or loosening, and ensuring the reliability of the guide rail holder in practical applications. To further enhance the strength of the holder body, a stamping structure is also used in the design. The stamping structure acts as a reinforcing rib, significantly improving its bending and tensile strength. This allows the holder body to better resist deformation and damage when subjected to external forces, thus ensuring the overall strength of the entire holder body and enabling it to operate stably in various complex working environments. Attached Figure Description

[0017] Figure 1 This is an isometric view of a guide rail holder according to the present invention; Figure 2 This is a side view of a guide rail holder according to the present invention; Figure 3 This is an isometric view of the main body of the guide rail holder described in this utility model; Figure 4 This is a side view of the main body of a guide rail holder according to the present invention; Figure 5 This is a schematic diagram of the cooperation between the card holder body and the guide rail of the guide rail card holder described in this utility model.

[0018] In the picture: 1. Pressure block; 101. Lower pressure wing plate; 102. First support plate; 103. Grounding pin; 2. Card holder body; 201. Card holder top plate; 202. Card holder side plate; 203. Height limiting surface; 204. Snap-fit ​​groove; 205. Overlap plate; 206. Overlap male connector; 207. Overlap female connector; 208. Threaded hole; 209. First punch; 210. Second punch; 211. Rotation limiting surface; 3. Locking bolt; 4. Spring; 5. Guide rail; 501. Second support plate; 502. Clip plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments of this application and the accompanying drawings.

[0020] like Figure 1-5 As shown, a guide rail holder includes: a pressure block 1, a holder body 2, a locking bolt 3, a spring 4, and a guide rail 5. The holder body 2 is engaged with the guide rail 5. The locking bolt 3 passes through the pressure block 1 and the spring 4 in sequence and is threadedly connected to the holder body 2. The holder body 2 includes: a holder top plate 201 located at the top of the holder body 2. Holder side plates 202 are symmetrically arranged on both sides of the top plate 201 in the width direction. A clearance groove is symmetrically arranged on both sides of the holder side plate 202 in the length direction. The upper edge of the clearance groove forms a height limiting surface 203, and the lower edge forms a snap-fit ​​groove 204. A rotation limiting surface 211 is vertically arranged on the inner side of the height limiting surface 203. The lower edges of the side plates 202 are all inclinedly provided with overlapping plates 205, the lower ends of which abut against each other. A threaded hole 208 is formed in the center of the top plate 201. Specifically, the threaded hole 208 is made using a flanging and tapping process. This process plastically deforms the material around the threaded hole, forming a raised flange structure. This effectively increases the material thickness of the threaded portion, allowing more material to distribute stress when the thread is subjected to tension, pressure, or torque, thereby improving the thread's load-bearing capacity and reducing the risk of thread damage or stripping. The flanging and tapping process forms the flange through plastic deformation of the material, eliminating the need for additional material. This improves material utilization and reduces waste. For large-scale production, this can significantly reduce raw material costs. The connection between the card holder top plate 201, the card holder side plate 202, and the overlapping plate 205 is provided with a transition fillet. The transition fillet at the connection can effectively disperse stress. When the card holder is subjected to external load, the connection is often a stress concentration area. Without the transition fillet, the stress will be concentrated in the sharp corner, which can easily lead to material fatigue and cracks, reducing the overall strength and service life of the card holder. The transition fillet can make the stress more evenly distributed at the connection, reduce stress concentration, thereby enhancing the structural strength of the card holder and improving its load-bearing capacity.

[0021] The upper part of the pressure block 1 is provided with a relief groove, which is used to accommodate the nut of the locking bolt 3. The depth of the relief groove is 0.9-1.1 times the height of the nut.

[0022] The clearance groove is designed to accommodate the nut of the locking bolt 3, and its depth is 0.9-1.1 times the height of the nut. This ensures that the nut will not protrude from the surface of the pressure block after installation. Maintaining surface flatness is crucial in the installation of equipment such as photovoltaic panels. If the nut protrudes, it may affect the fit of the photovoltaic panel, leading to insecure installation or affecting its normal operation. The clearance groove design keeps the pressure block surface flat, ensuring the stability and reliability of the entire installation structure. By creating the clearance groove to accommodate the nut inside the pressure block, the space of the pressure block is effectively utilized, making the entire mounting assembly more compact. In installation scenarios with high space requirements, this compact design saves installation space, improves space utilization, and also helps reduce the equipment's footprint.

[0023] The card holder body 2 has symmetrical clearance grooves on both sides of the card holder side plate 202 along its length. The upper edge of the clearance groove forms a height limiting surface. During installation, the height limiting surface 203 can cooperate with the corresponding part of the guide rail 5. When the card holder body 2 enters the guide rail 5 and is in the pre-installation position, the height limiting surface 203 can limit the vertical position of the card holder body 2 in the guide rail 5, preventing the card holder body 2 from sinking excessively and falling into the bottom of the groove of the guide rail 5. In addition, in the pre-installation position, the rotation limiting surface 211 of the card holder body 2 cooperates with the opposite side wall of the card holder plate 502, which can prevent the card holder body 2 from rotating on the guide rail 5, thereby improving the positioning stability of the card holder body 2 in the guide rail during installation and reducing the construction complexity and installation difficulty.

[0024] like Figure 5 As shown, a second support plate 501 is horizontally arranged on the top of each of the two side plates of the guide rail 5. The second support plate 501 is used to cooperate with the height limiting surface 203. A snap-fit ​​plate 502 is arranged on the adjacent side of the second support plate 501, and the snap-fit ​​plate 502 is used to cooperate with the snap-fit ​​groove 204. The second support plate 102 horizontally arranged on the top of the two side plates of the guide rail can cooperate with the height limiting surface 203 of the card holder body 2. The card holder body 2 can be positioned in the vertical direction to prevent it from sinking excessively and to prevent the card holder body 2 from falling into the bottom of the groove of the guide rail 5.

[0025] The width of the card holder body 2 and the distance between the clearance grooves on the card holder side plate 202 are smaller than the distance between the snap-fit ​​plates 502 on the guide rail 5, allowing the card holder body 2 to rotate between the snap-fit ​​plates 502 during pre-installation. Because the card holder body 2 can rotate between the snap-fit ​​plates 502, construction personnel can directly insert the card holder body 2 into the installation position on the guide rail without having to drag it while it is constantly in the inner groove of the guide rail 5. The specific installation method is as follows: First, align the length direction of the card holder body 2 with the length direction of the guide rail 5. Place the card holder body 2 into the inner groove of the guide rail 5 between the two snap-fit ​​plates 502, so that the clearance groove on the card holder body 2 is aligned with the snap-fit ​​plate 502. Then, rotate the card holder body 2 so that the length direction of the card holder body 2 is perpendicular to the length direction of the guide rail 5. Then, move the card holder body 2 down so that the height limiting surface 203 on the card holder body 2 can abut against the second support plate 501 of the guide rail 5, thereby preventing the card holder body 2 from falling into the inner groove of the guide rail 5. At this time, the rotation limiting surface 211 cooperates with the opposite side wall of the snap-fit ​​plate 502. Preferably, at this time, the two rotation limiting surfaces 211 are in contact with the opposite side wall of the snap-fit ​​plate 502, so that the card holder body 2 is just snapped between the two snap-fit ​​plates 502 on the guide rail 5. At this time, the card holder body 2 no longer rotates, which facilitates the subsequent installation of photovoltaic panels by the construction personnel.

[0026] In the specific implementation process, the distance between the bottom of the card slot 204 of the card holder body 2 and the top plate 201 of the card holder is adapted to the thickness of the photovoltaic panel actually installed. Specifically, when the pressure block 1 installed on the card holder body 2 completes the downward pressing installation of the photovoltaic panel, the card slot 204 of the card holder body 2 abuts against the lower end of the card plate 502 on the guide rail 5.

[0027] like Figure 3-4 As shown, each of the card holder side plates 202 has a first punch 209 in the middle. The first punch 209 is recessed towards the other card holder side plate 202, and the distance between the two first punches 209 is adapted to the threaded rod of the locking bolt 3. The setting of the first punch 209 changes the local structural shape of the card holder side plate 202, which is equivalent to locally strengthening the card holder side plate 202. When subjected to the preload from the locking bolt 3 and the external forces that may be subjected to during use, the first punch 209 can disperse the stress and prevent stress concentration from causing deformation or damage to the card holder side plate 202, thereby enhancing the overall structural strength and stability of the card holder body 2 and extending the service life of the guide rail card holder.

[0028] like Figure 3-4 As shown, two second punches 210 are recessed at the connection between the card holder side plate 202 and the overlapping plate 205. The second punches 210 are symmetrically distributed at intervals along the width direction of the card holder side plate 202. This structural design effectively increases the rigidity of the connection. Since the connection is a region with complex stress, it will be subjected to forces from various directions during installation and use. The presence of the second punches 210 can help this area better resist deformation, improve the overall rigidity of the card holder body 2, and ensure that the guide rail card holder will not affect its normal function due to deformation at the connection during long-term use. The setting of the second punches 210 can optimize the stress distribution at the connection between the card holder side plate 202 and the overlapping plate 205. When the guide rail card holder is subjected to external forces, the stress can be dispersed and transferred through the second punches 210, avoiding excessive stress concentration at the connection, reducing the risk of cracks or damage caused by stress concentration, and further improving the reliability and durability of the card holder body 2. At the same time, the symmetrically distributed second punches 210 make the stress distribution more uniform, which helps to maintain the balance and stability of the card holder body 2.

[0029] The main body 2 of the card holder is a plate-like structure, integrally formed by stamping. From a cost control perspective, the plate-like structure eliminates the need for large amounts of material used in solid card blocks, greatly reducing the amount of raw materials used and thus effectively lowering production costs, saving the company considerable expenses. In terms of structural stability, the plate-like structure of the card holder 2 cleverly incorporates overlapping plates 205, ensuring the overall structural stability of the card holder 2 during use, preventing deformation or loosening, and ensuring the reliability of the guide rail card holder in practical applications. To further enhance the strength of the card holder 2, a stamping structure is also used in the design. The stamping structure acts as a reinforcing rib, significantly improving its bending and tensile strength. This allows the card holder 2 to better resist deformation and damage when subjected to external forces, thereby ensuring the overall strength of the entire card holder and enabling it to maintain structural stability in various complex working environments.

[0030] like Figure 3-4 As shown, the two overlapping plates 205 are respectively provided with an overlapping male connector 206 and an overlapping female connector 207 at their ends, and the overlapping male connector 206 and the overlapping female connector 207 are engaged. Through the engagement, the two overlapping plates 205 form a whole, which allows the pressure on the main body 2 of the mounting bracket to be more evenly distributed. Compared with the case without engagement, this enhanced wholeness can avoid stress concentration in local positions, reduce the risk of damage to the main body 2 due to excessive local stress, and improve the reliability and service life of the guide rail mounting bracket.

[0031] like Figure 4 As shown, the upper two sides of the pressure block 1 are symmetrically provided with downward pressure wing plates 101, and the lower two sides are symmetrically provided with first support plates 102. A receiving groove is formed between the two first support plates 102, and the width of the receiving groove is adapted to the width of the card holder body 2. In actual use, the downward pressure wing plates 101 are used to press down and fix the photovoltaic panel module. Through the adaptation of the receiving groove to the card holder body 2, the locking bolts 3 can be easily tightened to connect the pressure block 1 and the card holder body 2.

[0032] like Figure 4 As shown, a grounding pin 103 is threadedly connected to the lower surface of the lower pressure wing plate 101. Photovoltaic panels and other equipment may accumulate static electricity during operation and may be subject to lightning strikes during thunderstorms. By connecting the grounding pin 103 to the lower surface of the lower pressure wing plate 101, the accumulated static electricity or lightning current can be promptly conducted to the ground, preventing damage to the equipment due to electrostatic discharge or lightning current, and ensuring the electrical safety and stable operation of the equipment.

[0033] like Figure 4As shown, the spring 4 is a variable-diameter spring. The smaller diameter end of the variable-diameter spring abuts against the lower surface of the pressure block 1, and the larger diameter end abuts against the upper surface of the card holder body 2. This design allows the spring 4 to better adapt to the contact between the pressure block 1 and the card holder body 2 when under force. The variable-diameter design of the spring gives it a certain self-positioning function during installation. The smaller diameter end, fitted onto the locking bolt 3, prevents it from moving during use, while the larger diameter end can distribute pressure on the card holder body, avoiding excessive local pressure, thereby optimizing the force distribution of the entire structure and improving the stability and reliability of the connection.

[0034] In one specific embodiment, the card holder body 2 is integrally formed by stamping from galvanized magnesium-aluminum plating. Galvanized magnesium-aluminum plating exhibits excellent corrosion resistance. Compared to traditional steel or other metal materials, it can effectively resist oxidation and corrosion under various harsh environmental conditions, such as humid and saline environments. This is because the galvanized magnesium-aluminum coating can form a dense protective film on the metal surface, preventing oxygen, moisture, and other corrosive substances from directly contacting the metal substrate of the card holder body, thereby greatly extending the service life of the card holder body and reducing structural failure and replacement costs caused by corrosion.

[0035] The stamping unibody molding process makes the card holder body 2 a single, integral structure, eliminating weak points that might arise from welding or other connection methods. This integral structure can better withstand external forces, ensuring the structural integrity and stability of the card holder body 2. Compared to traditional machining or casting processes, stamping has a shorter production cycle and higher production efficiency. Furthermore, the stamping unibody molding process can reduce raw material waste and lower production costs.

[0036] In actual installation, the pressure block 1 and the mounting bracket body 2 are pre-fitted by locking bolts 3. Spring 4 is fitted onto the locking bolts 3 and positioned between the pressure block 1 and the mounting bracket body 2. Construction personnel carry the complete mounting bracket assembly and flexibly position the mounting bracket body 2 on the guide rail 5 according to the specific installation location of the photovoltaic panel. This avoids the potential loss or confusion that might occur when carrying multiple loose parts, reducing preparation time. Construction personnel only need to install the complete mounting bracket assembly at the installation location, improving construction convenience. The ability to flexibly position the mounting bracket body on the guide rail 5 according to the specific installation location of the photovoltaic panel greatly enhances construction flexibility. Different photovoltaic power station projects may have different layouts and spacings of photovoltaic panels depending on site conditions and design requirements. This flexible setting method eliminates the need for complex modifications or adjustments to the guide rail 5; construction personnel only need to determine the position of the mounting bracket body 2 based on the actual situation to complete the installation, adapting to diverse construction needs.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A guide rail holder, comprising: The card holder body (2), locking bolt (3), spring (4), and guide rail (5) are connected to the guide rail (5). The locking bolt (3) passes through the card holder body (1) and the spring (4) in sequence and is threaded to the card holder body (2). The card holder body (2) includes: a card holder top plate (201) located at the top of the card holder body (2). Card holder side plates (202) are symmetrically arranged on both sides of the width direction of the top plate (201). A clearance groove is symmetrically arranged on both sides of the length direction of the card holder side plate (202). The upper edge of the clearance groove forms a height limiting surface (203), and the lower edge forms a snap-fit ​​groove (204). A rotation limiting surface (211) is vertically arranged on the inner side of the height limiting surface (203). The lower edge of each side plate (202) is provided with an overlapping plate (205) at an incline. The lower ends of the overlapping plates (205) abut against each other. A threaded hole (208) is provided in the middle of the top plate (201). The connection between the card seat top plate (201), the card seat side plate (202) and the overlapping plate (205) is provided with a transition rounded corner. The upper part of the pressure block (1) is provided with a relief groove, which is used to accommodate the nut of the locking bolt (3), and the depth of the relief groove is 0.9-1.1 times the height of the nut.

2. The guide rail holder according to claim 1, characterized in that, The top of the two side plates of the guide rail (5) are respectively provided with a second support plate (501). The second support plate (501) is used to cooperate with the height limiting surface (203). A snap-fit ​​plate (502) is provided on the adjacent side of the second support plate (501). The lower end of the snap-fit ​​plate (502) is used to cooperate with the snap-fit ​​groove (204). The opposite side wall of the snap-fit ​​plate (502) cooperates with the adjacent rotation limiting surface (211). The width of the card holder body (2) and the distance between the clearance grooves on the card holder side plate (202) are less than the distance between the snap-fit ​​plates (502) on the guide rail (5), so that the card holder body (2) can rotate between the snap-fit ​​plates (502).

3. A guide rail holder according to claim 1, characterized in that, Each of the card slot side plates (202) is provided with a first punch (209) in the middle. The first punch (209) is recessed towards the other card slot side plate (202). The distance between the two first punches (209) is adapted to the threaded rod of the locking bolt (3).

4. A guide rail holder according to claim 1, characterized in that, Two second punches (210) are recessed at the connection between the card seat side plate (202) and the overlapping plate (205), and the second punches (210) are symmetrically distributed at intervals along the width direction of the card seat side plate (202).

5. A guide rail holder according to claim 1, characterized in that, The two overlapping plates (205) are respectively provided with an overlapping male head (206) and an overlapping female head (207) at their ends, and the overlapping male head (206) and the overlapping female head (207) are engaged with each other.

6. A guide rail holder according to claim 1, characterized in that, The upper two sides of the pressure block (1) are symmetrically provided with lower pressure wing plates (101), and the lower two sides are symmetrically provided with first support plates (102). A receiving groove is formed between the two first support plates (102), and the width of the receiving groove is adapted to the width of the card seat body (2).

7. A guide rail holder according to claim 6, characterized in that, The lower surface of the pressure plate (101) is threaded with a grounding pin (103).

8. A guide rail holder according to claim 1, characterized in that, The spring (4) is a variable diameter spring. The end of the variable diameter spring with a smaller diameter abuts against the lower surface of the pressure block (1), and the end of the variable diameter spring with a larger diameter abuts against the upper surface of the card seat body (2).

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