Photovoltaic racking dismountable rail assembly and method

Abstract

The application discloses a photovoltaic support detachable guide rail assembly which comprises a guide rail connecting body, a guide mechanism and a limiting mechanism are arranged on the guide rail connecting body, the guide mechanism is used for guiding the guide rail, and the limiting mechanism is used for limiting the guide rail. The application replaces the mounting mode of combining the connecting piece with the fastener in the prior art, reduces the parts, has the beneficial effects of reducing the cost, facilitating the disassembly and assembly, shortening the disassembly and assembly time, reducing the labor intensity of the operator and being not easy to be damaged and the like.

Description

Technical Field

[0001] This invention relates to a guide rail assembly, and more particularly, to a detachable guide rail assembly and method for photovoltaic brackets. Background Technology

[0002] The global energy crisis has spurred the rapid development of photovoltaic (PV) power generation technology, making the construction of PV power plants a crucial link in this development process. PV brackets, as a key component of PV power generation, provide the most basic safety guarantee. Currently, most rooftop distributed projects in the industry use aluminum alloy guide rails or triangular brackets for support. Aluminum alloy profiles are lightweight and aesthetically pleasing, making them particularly suitable for lightweight roofs or corrugated steel roofs. Chinese patent application CN202320627620.2 provides a patent for a connector for PV bracket guide rails. This solution pushes the connecting block backward, causing the second locking block to slide inside the first locking slot, thus connecting the first and second locking slots. Two self-drilling screws are then inserted through the right side of the connecting block, passing through the first and second locking blocks, thereby connecting the guide rail to the connecting block. Traditional T-shaped locking blocks are fixed with aluminum alloy washers and bolts, while the connector is mainly a combination of fasteners. The connector is first placed in the appropriate position on the guide rail, and the fasteners are used to lock and fix it, creating a top-to-top effect to connect the two guide rails. This fixing method requires more parts during installation, which not only increases the difficulty of installation and prolongs the installation time, but also increases material costs and the labor intensity of the installers.

[0003] Therefore, those skilled in the art are dedicated to providing a photovoltaic bracket detachable guide rail assembly and method that can effectively solve the above-mentioned technical problems. Summary of the Invention

[0004] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a photovoltaic bracket detachable guide rail assembly and method that can effectively solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides a detachable guide rail assembly for photovoltaic brackets, including a guide rail connecting body, wherein the guide rail connecting body is provided with a guiding mechanism and a limiting mechanism, the guiding mechanism is used to guide the guide rail, and the limiting mechanism is used to limit the guide rail.

[0006] Preferably, the guide rail connecting body includes a first positioning base block, and first positioning side blocks are provided on both sides of the first positioning base block, with both ends of each first positioning side block being flush with both ends of the first positioning base block.

[0007] The guiding mechanism is respectively disposed on each of the first positioning side blocks, and the limiting mechanism is disposed on the first positioning bottom block; the first positioning bottom block and the first positioning side blocks are integrally formed.

[0008] Preferably, the guiding mechanism includes four first side openings on each of the first positioning side blocks, each of the first side openings is provided with a first upper guide seat, each of the first upper guide seats extends inward and is located between two first positioning side blocks, and each of the first upper guide seats has a first upper guide groove at its upper end.

[0009] Each of the first side openings is provided with a first lower guide seat. Each of the first lower guide seats extends inward and is located between two first positioning side blocks. Each of the lower ends of each of the first lower guide seats is provided with a first lower guide groove that cooperates with each of the first upper guide grooves. Each of the first upper guide seats is located between each of the first lower guide seats.

[0010] Each of the first positioning side blocks has a first circular hole symmetrically arranged in the middle.

[0011] Preferably, the limiting mechanism includes two first bottom openings on the first positioning block, each of which is symmetrically provided with a first elastic limiting piece, and each of the first elastic limiting pieces is provided with a backstop portion.

[0012] Preferably, the first elastic limiting piece includes a connecting section that is inclined with the outer side lower and the inner side higher. The outer end of the connecting section is connected to the first positioning base block, and the inner end of the connecting section is connected to the outer end of the protruding section. The inner end of the protruding section is provided with the anti-retraction part on both sides, and each anti-retraction part is a plurality of first spikes.

[0013] Each of the aforementioned anti-retraction portions has an extension section connected to the inner end of the protruding section. The extension section is inclined with a higher inner section and a lower outer section. A parallel operating section is provided at the lower end of the extension section. The connecting section, the protruding section, the anti-retraction portion, the extension section, and the parallel operating section are all integrally formed.

[0014] Both sides of the guide rail are provided with locking positions, and each locking position has an upper locking slot and a lower locking slot.

[0015] Preferably, the guide rail connecting body includes a second positioning base block, and a second positioning side block is provided on both sides of the second positioning base block, with both ends of each second positioning side block being flush with both ends of the second positioning base block.

[0016] The guiding mechanism is respectively disposed on each of the second positioning side blocks, and the limiting mechanism is disposed on the second positioning bottom block.

[0017] Preferably, the guiding mechanism includes four second side openings on each of the second positioning side blocks, each of the second side openings is provided with a second upper guide seat, each of the second upper guide seats extends inward and is located between two second positioning side blocks, and each of the second upper guide seats has a second upper guide groove at its upper end.

[0018] Each of the second side openings is provided with a second lower guide seat. Each of the second lower guide seats extends inward and is located between two second positioning side blocks. The lower end of each of the second lower guide seats is provided with a second lower guide groove that cooperates with each of the second upper guide grooves. Each of the second lower guide seats is located between each of the second upper guide seats.

[0019] Each of the second positioning side blocks has a second circular hole symmetrically arranged in the middle.

[0020] Preferably, the limiting mechanism includes two second bottom openings formed on the second positioning base block, and each second bottom opening is provided with a second elastic limiting piece symmetrically with respect to each other. The second elastic limiting piece includes a connecting part and a limiting part.

[0021] The outer end of the connecting part is connected to the second positioning bottom block, the inner end of the connecting part is connected to the outer end of the limiting part, the limiting part is inclined with the outer side lower and the inner side higher, and the outer end of the limiting part is provided with a plurality of second spikes;

[0022] Both sides of the guide rail are provided with locking positions, and each locking position has an upper locking slot and a lower locking slot.

[0023] The method of using the detachable guide rail assembly for photovoltaic brackets is characterized by the following: During installation, the first upper guide seat and the first lower guide seat respectively cooperate with the upper and lower slots, allowing the guide rail connecting body to slide against the guide rail. The guide rail connecting body is then horizontally pushed against the guide rail. At this point, several first spikes rub against the bottom of the guide rail, continuing to push the guide rail connecting body until it reaches the first circular hole. The first spikes then prevent the guide rail from retracting. Subsequently, another guide rail to be connected is then connected to the other section of the guide rail connecting body. When disassembly is required, the following two methods can be used depending on the specific configuration:

[0024] Method 1: With the first spike facing downwards, press the parallel operating section to prevent the first spikes from contacting the bottom of the guide rail, and at the same time pull out the guide rail connecting body.

[0025] Method 2: When the first spike is set upwards, disassembly is performed by pulling down the parallel operation segment.

[0026] The method of using the photovoltaic bracket detachable guide rail assembly is as follows: During installation, the second upper guide seat and the second lower guide seat are respectively used in conjunction with the upper slot and the lower slot to make the guide rail connecting body slide with the guide rail. Push the guide rail connecting body horizontally to the guide rail. At this time, several second spikes rub against the bottom of the guide rail. Continue to push the guide rail connecting body until it reaches the second round hole. The guide rail is blocked from exiting outward by several second spikes. Then, connect the other guide rail to be connected to the other section of the guide rail connecting body.

[0027] When it needs to be disassembled, it can be done in the following two ways:

[0028] Method 1: Use a tool to move the edge of the second elastic limiting piece downwards, so that its second spike no longer contacts the bottom of the guide rail, and at the same time pull out the guide rail connecting body;

[0029] Method 2: Make a through hole in the second elastic limiting piece, pass a tool through the through hole, and then pull the second elastic limiting piece downward with the tool so that its second spike no longer contacts the bottom of the guide rail. Then pull out the guide rail connecting body.

[0030] The beneficial effects of this invention are: by replacing the existing installation method of using connectors and fasteners, this invention reduces the number of parts and has the advantages of reducing costs, facilitating disassembly and assembly, shortening disassembly and assembly time, reducing the labor intensity of operators, and being less prone to damage. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the specific structure of Embodiment 1 of the present invention (Scheme 1).

[0032] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure (Scheme 1).

[0033] Figure 3 yes Figure 2 A magnified schematic diagram of the structure at point A in the middle (Scheme 1).

[0034] Figure 4 yes Figure 1 A schematic diagram of the left-side view structure (Scheme 1).

[0035] Figure 5 yes Figure 4 A top-view structural diagram (Scheme 1).

[0036] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at point B in the middle (Scheme 1).

[0037] Figure 7This is a schematic diagram of the structure of Embodiment 2 of the present invention (Scheme 2).

[0038] Figure 8 yes Figure 7 A schematic diagram of the three-dimensional structure (Scheme 2).

[0039] Figure 9 yes Figure 7 A magnified schematic diagram of the structure at point C (Scheme 2).

[0040] Figure 10 yes Figure 7 A schematic diagram of the left-side view structure (Scheme 2).

[0041] Figure 11 yes Figure 10 A top-view structural diagram (Scheme 2).

[0042] Figure 12 This is a schematic diagram of the guide rail structure (Scheme 2). Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0044] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] like Figures 1 to 12 As shown:

[0047] Example 1

[0048] A photovoltaic bracket detachable guide rail assembly includes a guide rail connecting body 100, on which a guiding mechanism 101 and a limiting mechanism 102 are provided. The guiding mechanism 101 is used to guide the guide rail 200, and the limiting mechanism 102 is used to limit the guide rail 200.

[0049] The guide rail connecting body 100 includes a first positioning base block 103, and first positioning side blocks 105 are provided on both sides of the first positioning base block 103. The two ends of each first positioning side block 105 are flush with the two ends of the first positioning base block 103.

[0050] The guiding mechanism 101 is respectively disposed on each of the first positioning side blocks 105, and the limiting mechanism 102 is disposed on the first positioning bottom block 103; the first positioning bottom block 103 and the first positioning side block 105 are integrally formed.

[0051] The guiding mechanism 101 includes four first side openings 106 formed on each of the first positioning side blocks 105. Each of the first side openings 106 is provided with a first upper guide seat 107. Each of the first upper guide seats 107 extends inward and is located between two first positioning side blocks 105. Each of the first upper guide seats 107 has a first upper guide groove 108 formed at its upper end.

[0052] Each of the first side openings 106 is provided with a first lower guide seat 109. Each of the first lower guide seats 109 extends inward and is located between two first positioning side blocks 105. Each of the first lower guide seats 109 has a first lower guide groove 130 at its lower end that cooperates with each of the first upper guide grooves 108. Each of the first upper guide seats 107 is located between each of the first lower guide seats 109.

[0053] Each of the first positioning side blocks 105 has a first circular hole 111 symmetrically arranged in the middle.

[0054] The limiting mechanism 102 includes two first bottom openings 112 formed on the first positioning base block 103. Each of the first bottom openings 112 is provided with a first elastic limiting piece 113 symmetrically arranged, and each of the first elastic limiting pieces 113 is provided with a backstop portion 115.

[0055] The first elastic limiting piece 113 includes a connecting section 116 that is inclined with the outer side lower and the inner side higher. The outer end of the connecting section 116 is connected to the first positioning base block 103, and the inner end of the connecting section 116 is connected to the outer end of the protruding section 117. The inner ends of the protruding section 117 are provided with the anti-retraction part 115 on both sides, and each anti-retraction part 115 is a plurality of first spikes 150.

[0056] Each of the anti-retraction portions 115 has an extension section 118 connected to the inner end of the protruding section 117. The extension section 118 is inclined with the inner side higher than the outer side, and a parallel operating section 119 is provided at the lower end of the extension section 118. The connecting section 116, the protruding section 117, the anti-retraction portion 115, the extension section 118 and the parallel operating section 119 are all integrally formed.

[0057] Both sides of the guide rail 200 are provided with locking positions 301, and each locking position 301 has an upper locking groove 303 and a lower locking groove 305.

[0058] The method of using the detachable guide rail assembly for photovoltaic brackets is as follows: During installation, the first upper guide seat 107 and the first lower guide seat 109 cooperate with the upper slot 303 and the lower slot 305 respectively, so that the guide rail connecting body 100 and the guide rail 200 slide together. The guide rail connecting body 100 is then horizontally pushed towards the guide rail 200. At this time, several first spikes 150 rub against the bottom of the guide rail 200. The guide rail connecting body 100 continues to be pushed until it reaches the first circular hole 111. The several first spikes 150 prevent the guide rail 200 from retracting. Then, the other guide rail to be connected is connected to the other section of the guide rail connecting body 100. When disassembly is required, the following two methods can be used depending on the specific configuration:

[0059] Method 1: With the first spike 150 facing downwards, press the parallel operation section 119 so that each first spike 150 is no longer in contact with the bottom of the guide rail 200, and at the same time pull out the guide rail connecting body 100.

[0060] Method 2: When the first spike 150 is set upward, disassembly is performed by pulling down the parallel operation section 119.

[0061] Example 2

[0062] A photovoltaic bracket detachable guide rail assembly includes a guide rail connecting body 100, on which a guiding mechanism 101 and a limiting mechanism 102 are provided. The guiding mechanism 101 is used to guide the guide rail 200, and the limiting mechanism 102 is used to limit the guide rail 200.

[0063] The guide rail connecting body 100 includes a second positioning base block 201, and a second positioning side block 202 is provided on both sides of the second positioning base block 201. The two ends of each second positioning side block 202 are flush with the two ends of the second positioning base block 201.

[0064] The guide mechanism 101 is respectively disposed on each of the second positioning side blocks 202, and the limiting mechanism 102 is disposed on the second positioning bottom block 201.

[0065] The guiding mechanism 101 includes four second side openings 203 opened on each of the second positioning side blocks 202. Each of the second side openings 203 is provided with a second upper guide seat 206. Each of the second upper guide seats 206 extends inward and is located between two second positioning side blocks 202. Each of the second upper guide seats 206 has a second upper guide groove 207 opened at its upper end.

[0066] Each of the second side openings 203 is provided with a second lower guide seat 208. Each of the second lower guide seats 208 extends inward and is located between two second positioning side blocks 202. The lower end of each of the second lower guide seats 208 is provided with a second lower guide groove 209 that cooperates with each of the second upper guide grooves 207. Each of the second lower guide seats 208 is located between each of the second upper guide seats 206.

[0067] Each of the second positioning side blocks 202 has a second circular hole 210 symmetrically arranged in the middle.

[0068] The limiting mechanism 102 includes two second bottom openings 220 formed on the second positioning bottom block 201. Each of the second bottom openings 220 is provided with a second elastic limiting piece 222 symmetrically. The second elastic limiting piece 222 includes a connecting part 223 and a limiting part 225.

[0069] The outer end of the connecting part 223 is connected to the second positioning base block 201, and the inner end of the connecting part 223 is connected to the outer end of the limiting part 225. The limiting part 225 is inclined with the outer side lower and the inner side higher. The outer end of the limiting part 225 is provided with a plurality of second spikes 227. In addition, a spring can be added. Specifically, a groove is provided at the bottom of the product, and a stainless steel spring is fixed by a rivet.

[0070] Both sides of the guide rail 200 are provided with locking positions 301, and each locking position 301 has an upper locking groove 303 and a lower locking groove 305.

[0071] The method of using the photovoltaic bracket detachable guide rail assembly is characterized by the following: During installation, the second upper guide seat 206 and the second lower guide seat 208 are respectively used in conjunction with the upper slot 303 and the lower slot 305, so that the guide rail connecting body 100 and the guide rail 200 slide in contact. The guide rail connecting body 100 is pushed horizontally to the guide rail 200. At this time, several second spikes 227 rub against the bottom of the guide rail 200, and the guide rail connecting body 100 is pushed until it reaches the second round hole 210. The guide rail 200 is blocked from exiting outward by several second spikes 227. Then, the other guide rail to be connected is connected to the other section of the guide rail connecting body 100.

[0072] When it needs to be disassembled, it can be done in the following two ways:

[0073] Method 1: Use a tool to move the edge of the second elastic limiting piece 222, thereby pulling the second elastic limiting piece 222 downward so that its second spike 227 no longer contacts the bottom of the guide rail 200, and at the same time pull out the guide rail connecting body 100.

[0074] Method 2: Make a through hole in the second elastic limiting piece 222, pass a tool through the through hole, and then pull the second elastic limiting piece 222 downward with the tool so that its second spike 227 no longer contacts the bottom of the guide rail 200. Then pull out the guide rail connecting body 100.

[0075] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A detachable guide rail assembly for photovoltaic brackets, characterized in that: The system includes a guide rail connecting body (100), on which a guiding mechanism (101) and a limiting mechanism (102) are provided. The guiding mechanism (101) guides the guide rail (200), and the limiting mechanism (102) limits the guide rail (200). The guide rail connecting body (100) includes a first positioning base block (103), and first positioning side blocks (105) are provided on both sides of the first positioning base block (103). Both ends of 05) are flush with both ends of the first positioning base block (103); the guide mechanism (101) includes four first side openings (106) opened on each of the first positioning side blocks (105), each of the first side openings (106) is provided with a first upper guide seat (107), each of the first upper guide seats (107) extends inward and is located between two first positioning side blocks (105), and each of the first upper guide seats (107) is provided with a first upper guide groove (108) at its upper end; Each of the first side openings (106) is provided with a first lower guide seat (109). Each of the first lower guide seats (109) extends inward and is located between two first positioning side blocks (105). Each of the first lower guide seats (109) has a first lower guide groove (130) at its lower end that cooperates with each of the first upper guide grooves (108). Each of the first upper guide seats (107) is located between each of the first lower guide seats (109). Each of the first positioning side blocks (105) has a first circular hole (111) symmetrically arranged in the middle; the limiting mechanism (102) includes two first bottom openings (112) opened on the first positioning bottom block (103), each of the first bottom openings (112) has a first elastic limiting piece (113) symmetrically arranged, and each of the first elastic limiting pieces (113) has a stop part (115); the first elastic limiting piece (113) includes a connecting section (116) that is inclined with the outer side lower and the inner side higher, the outer end of the connecting section (116) is connected to the first positioning bottom block (103), the inner end of the connecting section (116) is connected to the outer end of the protruding section (117), and the stop part (115) is arranged on both sides of the inner end of the protruding section (117), and each stop part (115) is a plurality of first spikes (150); Each of the anti-reverse portions (115) has an extension section (118) connected to the inner end of the protruding section (117). The extension section (118) is inclined with a higher inner part and a lower outer part. A parallel operating section (119) is provided at the lower end of the extension section (118). The connecting section (116), the protruding section (117), the anti-reverse portion (115), the extension section (118) and the parallel operating section (119) are all integrally formed. Both sides of the guide rail (200) are provided with locking positions (301), and each locking position (301) has an upper locking groove (303) and a lower locking groove (305); During installation, the first upper guide seat (107) and the first lower guide seat (109) are respectively engaged with the upper slot (303) and the lower slot (305) to make the guide rail connecting body (100) slide with the guide rail (200). The guide rail connecting body (100) is pushed horizontally to the guide rail (200). At this time, several first spikes (150) rub against the bottom of the guide rail (200). The guide rail connecting body (100) is pushed until it reaches the first round hole (111). The guide rail (200) is blocked from exiting outward by several first spikes (150). Then, the other guide rail to be connected is connected to the other part of the guide rail connecting body (100). When it is necessary to disassemble, the following two methods can be used according to different settings: Method 1: With the first spike (150) facing downwards, press the parallel operation section (119) so that each first spike (150) no longer contacts the bottom of the guide rail (200), and at the same time pull out the guide rail connecting body (100). Method 2: When the first spike (150) is set upward, disassembly is performed by pulling down the parallel operation segment (119).

2. A detachable guide rail assembly for photovoltaic brackets, characterized in that: The system includes a guide rail connecting body (100), on which a guiding mechanism (101) and a limiting mechanism (102) are provided. The guiding mechanism (101) is used to guide the guide rail (200), and the limiting mechanism (102) is used to limit the guide rail (200). The guide rail connecting body (100) includes a second positioning base block (201), and second positioning side blocks (202) are provided on both sides of the second positioning base block (201). The two ends of each second positioning side block (202) are flush with the two ends of the second positioning base block (201). The guiding mechanism (101) is respectively disposed on each of the second positioning side blocks (202), and the limiting mechanism (102) is disposed on the second positioning bottom block (201); the guiding mechanism (101) includes four second side openings (203) opened on each of the second positioning side blocks (202), each of the second side openings (203) is provided with a second upper guide seat (206), each of the second upper guide seats (206) extends inward and is located between two second positioning side blocks (202), and each of the second upper guide seats (206) has a second upper guide groove (207) opened at its upper end; Each of the second side openings (203) is provided with a second lower guide seat (208). Each of the second lower guide seats (208) extends inward and is located between two second positioning side blocks (202). Each of the second lower guide seats (208) has a second lower guide groove (209) at its lower end that cooperates with each of the second upper guide grooves (207). Each of the second lower guide seats (208) is located between each of the second upper guide seats (206). Each of the second positioning side blocks (202) has a second circular hole (210) symmetrically arranged in the middle; the limiting mechanism (102) includes two second bottom openings (220) opened on the second positioning bottom block (201), and each of the second bottom openings (220) has a second elastic limiting piece (222) symmetrically arranged in the middle; the second elastic limiting piece (222) includes a connecting part (223) and a limiting part (225); The outer end of the connecting part (223) is connected to the second positioning base block (201), the inner end of the connecting part (223) is connected to the outer end of the limiting part (225), the limiting part (225) is inclined with the outer side lower and the inner side higher, and the outer end of the limiting part (225) is provided with a plurality of second spikes (227). Both sides of the guide rail (200) are provided with locking positions (301), and each locking position (301) has an upper locking groove (303) and a lower locking groove (305); During installation, the second upper guide seat (206) and the second lower guide seat (208) are used in conjunction with the upper slot (303) and the lower slot (305) respectively, so that the guide rail connecting body (100) and the guide rail (200) slide in contact, and the guide rail connecting body (100) is pushed horizontally to the guide rail (200). At this time, several second spikes (227) rub against the bottom of the guide rail (200), and the guide rail connecting body (100) is pushed until it reaches the second round hole (210). The guide rail (200) is blocked from exiting outward by several second spikes (227). Then, the other guide rail to be connected is connected to the other section of the guide rail connecting body (100). When it needs to be disassembled, it can be done in the following two ways: Method 1: Use a tool to move the edge of the second elastic limiting piece (222), thereby pulling the second elastic limiting piece (222) downward so that its second spike (227) no longer contacts the bottom of the guide rail (200), and at the same time pull out the guide rail connecting body (100); Method 2: Make a through hole in the second elastic limiting piece (222), pass a tool through the through hole, and then pull the second elastic limiting piece (222) downward with the tool so that its second spike (227) no longer contacts the bottom of the guide rail (200). Then pull out the guide rail connecting body (100).

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