A flexible deformation device and installation method suitable for narrow gap nut installation

Abstract

The application discloses a flexible deformation device suitable for narrow gap nut installation and an installation method, relates to the technical field of equipment manufacturing and assembly, and aims to solve the technical problem that a traditional nut installation tool cannot assemble nuts in a specific gap in the prior art. The application comprises a front fork, a connecting block and a handle. The front fork is hingedly connected with the connecting block through a first rotating shaft, and the connecting block is hingedly connected with the handle through a second rotating shaft. In the application, the front fork, the connecting block and the handle can adjust the positional relationship therebetween according to the position of the gap, so as to meet the installation requirements of nuts in a small gap.

Description

Technical Field

[0001] This invention relates to the field of equipment manufacturing and assembly technology, and in particular to a flexible deformation device and installation method suitable for installing nuts in narrow gaps. Background Technology

[0002] In the field of mechanical assembly, bolting, riveting, and welding are commonly used connection methods. Among them, bolting is favored for its simplicity. When riveting and welding are inconvenient, bolting is often used. However, when multiple joints are connected using bolts for interlocking, due to product structure requirements, there are situations where nuts need to be installed in the small gap formed by two mating plates. In this case, the nut is installed within the small gap formed by the two plates, the width of which is only slightly larger than the thickness of the nut. The distance between the threaded installation position and the plate boundary is relatively large, while the gap between the joints is even smaller than the distance between the threaded installation position and the plate boundary. Therefore, traditional nut installation tools cannot complete the assembly task.

[0003] At the same time, the gap heights between the multiple joints and the strip plate are not the same, which makes assembly more difficult.

[0004] Therefore, how to provide an installation tool that can solve the problem of bolt and nut assembly in small gaps between plates is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] Based on the above analysis, the present invention aims to provide a flexible deformation device suitable for installing nuts in narrow gaps, in order to solve the technical problem of difficult installation of nuts in small gaps between plates.

[0006] The objective of this invention is mainly achieved through the following technical solutions:

[0007] This invention provides a flexible deformation device suitable for installing nuts in narrow gaps, comprising: a front fork, a connecting block, a handle, and an adjusting bolt; the adjusting bolt is disposed on the front fork and is used to adjust the distance between the lower end face of the front fork and the head of the adjusting bolt; the front fork and the connecting block are hinged by a first pivot, and the connecting block and the handle are hinged by a second pivot.

[0008] Furthermore, the handle has an L-shaped structure.

[0009] Furthermore, the handle includes a vertical bar structure and a horizontal bar structure.

[0010] Furthermore, the lower end of the vertical rod structure is connected to the connecting block.

[0011] Furthermore, one end of the horizontal bar structure is located at the upper end of the vertical bar structure.

[0012] Furthermore, the other end of the crossbar structure is opposite to the mounting point of the nut installed in the small gap between the plates.

[0013] Furthermore, the fork is provided with a fixing point for fixing nuts.

[0014] Furthermore, an adhesive layer is provided on the fixing site.

[0015] Furthermore, the fork includes a first fork body, a second fork body, a main body, and a connecting rod; the first fork body and the main body are integrally formed, the first fork body has a first threaded hole, the second fork body has a second threaded hole at a position corresponding to the first threaded hole, and the connecting rod passes through the first threaded hole and the second threaded hole to adjust the distance between the first fork body and the second fork body.

[0016] Furthermore, a first positioning groove is provided on the first fork body, and a second positioning groove is provided on the second fork body at a position corresponding to the first positioning groove. After the connecting rod adjusts the distance between the first fork body and the second fork body, the first positioning groove and the second positioning groove serve as fixing grooves for fixing the nut to be installed.

[0017] Furthermore, the installation tool also includes a positioning assembly, which includes a first positioning rod, a second positioning rod, a fixing member, and a rotating shaft. The first positioning rod is fixed to the crossbar structure, and the second positioning rod is disposed opposite to the first positioning rod. The rotating shaft is fixed to a groove in the crossbar structure, and one end of the second positioning rod is rotatably disposed on the rotating shaft. A first groove is formed on the side wall of the first positioning rod facing the second positioning rod, and a second groove is formed on the second positioning rod at a position corresponding to the first groove. When the first positioning rod and the second positioning rod are disposed opposite to each other, the first groove and the second groove are joined together to form a positioning through hole, and the positioning through hole is located directly above the fixing groove on the first fork and the second fork.

[0018] In another aspect, the present invention provides an installation method using the aforementioned flexible deformation device suitable for installing nuts in narrow gaps, the method comprising the following steps:

[0019] Step 1: Secure the nuts to the front fork;

[0020] Step 2: The fork and the connecting block hang down naturally, along the installation gap, until the front end of the fork touches the bottom plate.

[0021] Step 3: The handle moves in the opposite direction to the mounting point, and the rear end of the fork moves away from the mounting point in accordance with the handle and touches the bottom plate;

[0022] Step 4: The handle moves toward the mounting point, causing the fork to move the nut directly below the mounting point.

[0023] Furthermore, the installation method also includes step five, in which the screw passes through the mounting through hole on the part to be fixed and is fastened to the nut located directly below the mounting point.

[0024] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0025] (1) The flexible deformation device for installing nuts in narrow gaps provided by the present invention includes a front fork, a connecting block and a handle that can rotate relative to each other. The front fork, the connecting block and the handle can be adaptively adjusted according to the gap between the plates so that their shape can meet the installation requirements of nuts in small gaps between the plates.

[0026] (2) The flexible deformation device for installing nuts in narrow gaps provided by the present invention utilizes the deformation characteristics between the fork, connecting block and handle. The fork and connecting block can be inserted vertically into the small gap between the plates. When the front end of the fork abuts against the bottom plate of the part to be fixed, the handle moves in the opposite direction to the installation point. The rear end of the fork moves in the opposite direction to the installation point in accordance with the pulling force of the handle, and then drives the handle to move downward, so that the rear end of the fork abuts against the bottom plate of the part to be fixed. At this time, the fixing point of the fork faces the installation point. The handle moves towards the installation point, and the fork drives the nut to move to the installation point. The installation point corresponds to the screw through hole of the part to be fixed. The screw passes through the screw through hole and connects with the nut, completing the installation process of the nut in the small gap between the plates.

[0027] (3) The present invention provides an installation method using a flexible deformation device suitable for installing nuts in narrow gaps. It is simple to operate and has high positioning and installation accuracy.

[0028] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0030] Figure 1 This is a first structural schematic diagram of a flexible deformation device suitable for installing nuts in narrow gaps, provided in Embodiment 1 of the present invention.

[0031] Figure 2This is a second structural schematic diagram of a flexible deformation device suitable for installing nuts in narrow gaps, provided in Embodiment 1 of the present invention.

[0032] Figure 3 This is a third structural schematic diagram of a flexible deformation device suitable for installing nuts in narrow gaps, provided in Embodiment 1 of the present invention.

[0033] Figure 4 This is a schematic diagram of the front fork in the flexible deformation device for installing nuts in narrow gaps provided in Embodiment 1 of the present invention.

[0034] Figure 5 This is a fourth structural schematic diagram of a flexible deformation device suitable for installing nuts in narrow gaps, provided in Embodiment 1 of the present invention.

[0035] Figure 6 This is a schematic diagram of the structure of the first part;

[0036] Figure 7 This is a schematic diagram of the structure of the second part;

[0037] Figure 8 A schematic diagram of the structure for inserting the tenon of the second part into the joint of the first part;

[0038] Figure 9 This is a schematic diagram illustrating the installation of a nut using the flexible deformation device described in the embodiment, which is suitable for installing nuts in narrow gaps.

[0039] Figure 10 This is a flowchart of the installation method described above.

[0040] Figure label:

[0041] 1-Front fork; 11-First fork body; 111-First positioning groove; 12-Second fork body; 121-Second positioning groove; 13-Body; 14-Connecting rod; 15-First component; 151-Slide groove; 152-Opening structure; 16-Second component; 161-Slider; 162-Fixing groove; 17-Fixing structure; 18-First sub-component; 19-Second sub-component; 20-Z-shaped rod; 21-Z-shaped groove; 211-First sub-groove; 212-Second sub-groove; 213-Third sub-groove; 22-First limiting rod; 23-Second limiting rod; 24-Actuating rod; 2-Connecting block; 3-Handle; 31-Vertical rod structure; 32-Horizontal rod structure; 321-Receiving groove; 4-Positioning component; 41-First positioning rod; 411-First groove; 42-Second positioning rod; 421-Second groove; 43-Fixing component; 44-Rotating shaft; 45-Binding component; 5-First part; 51-Joint; 52-First through hole; 6-Second part; 61-Tenon; 62-Strip plate; 63-Partition; 64-Second through hole; 7-First gap; 8-Second gap; 9-Adjusting bolt. Detailed Implementation

[0042] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and are used together with the invention to illustrate the principles of the invention.

[0043] Example 1

[0044] This embodiment provides a flexible deformation device suitable for installing nuts in narrow gaps. See [link to documentation]. Figure 1 It includes: a front fork 1, a connecting block 2, a handle 3, and an adjusting bolt 9; the adjusting bolt 9 is disposed on the front fork 1, and the adjusting bolt 9 is used to adjust the distance between the lower end face of the front fork 1 and the head of the adjusting bolt 9; the front fork 1 and the connecting block 2 are hinged by a first pivot, and the connecting block 2 and the handle 3 are hinged by a second pivot.

[0045] like Figures 6 to 9 As shown, Figure 6 The diagram shows the structure of the first part 5, which includes three sets of connectors 51. Each connector 51 has a first through hole 52 for fixing screws. Figure 7 This is a structural diagram of the second part 6, which is installed corresponding to the first part 5. Correspondingly, the second part 6 also includes three sets of tenons 61 corresponding to the joint 51. A second through hole 64 is provided on each tenon 61 at a position corresponding to the first through hole 52. Adjacent tenons 61 on the second part 6 have a partition plate 63. The second part 6 also includes a strip plate 62, located below the tenons 61, with a certain gap between the strip plate 62 and the tenons 61. Figure 8 and Figure 9 As shown, the second part 6 is assembled onto the first part 5. The tenon 61 of the second part 6 is inserted into the joint 51 of the first part 5. There is a first gap 7 between the joint 51 of the first part 5 and the strip plate 62 of the second part 6. The size of the first gap 7 is larger than the thickness of the nut. There is a second gap 8 between the joint 51 and the partition 63. The distance of the second gap 8 is greater than the thickness of the nut. The adjusting bolt 9 can adjust the height of the fork 1 in the first gap 7, so that the nut is positioned close to the first through hole 52 and the second through hole 64 at the mounting point, making it easier to use and install.

[0046] In this embodiment, the flexible deformation device suitable for installing nuts in narrow gaps carries the nut downwards from the second gap 8 to the strip plate 62, then transports the nut to the first gap 7, and then pushes the nut to the installation positions corresponding to the first through hole 52 and the second through hole 64. During operation, utilizing the adaptive connection relationship between the fork 1, the connecting block 2, and the handle 3, the nut can be carried vertically in the second gap 8 and then horizontally in the first gap 7, ultimately completing the installation of the nut in the small gap between the plates.

[0047] In this embodiment, the handle 3 has an L-shaped structure.

[0048] In this embodiment, the handle 3 includes a vertical bar structure 31 and a horizontal bar structure 32.

[0049] In this embodiment, the lower end of the vertical rod structure 31 is connected to the connecting block 2.

[0050] The vertical rod structure 31 is connected to the connecting block 2. When the connecting block 2 and the fork 1 are vertically set, the vertical rod structure 31 can increase its vertical height. When the second gap 8 is high, the vertical rod structure 31 helps to transport the nut to the strip plate 62.

[0051] In this embodiment, one end of the horizontal bar structure 32 is disposed at the upper end of the vertical bar structure 31.

[0052] In this embodiment, the other end of the crossbar structure 32 is opposite to the mounting point.

[0053] The operator holds the horizontal bar structure 32 for easy operation.

[0054] In this embodiment, the fork 1 is provided with a fixing point for fixing nuts.

[0055] The opening structure 152 at the front end of the fork 1 serves as a fixing point for fixing the nut.

[0056] In this embodiment, an adhesive layer is provided on the fixing site.

[0057] The nut is glued to the adhesive layer, which is a layer of adhesive applied to the fixing point to allow the nut to stick.

[0058] Example 2

[0059] The flexible deformation device for installing nuts in narrow gaps described in this embodiment is based on Embodiment 1, such as... Figure 2 As shown, the front fork 1 includes a first fork body 11, a second fork body 12, a body 13, and a connecting rod 14; the first fork body 11 and the body 13 are integrally formed, the first fork body 11 has a first threaded hole, the second fork body 12 has a second threaded hole at a position corresponding to the first threaded hole, and the connecting rod 14 passes through the first threaded hole and the second threaded hole to adjust the distance between the first fork body 11 and the second fork body 12.

[0060] Furthermore, the crossbar structure 32 is provided with a storage groove 321.

[0061] Furthermore, a first positioning groove 111 is provided on the first fork 11, and a second positioning groove 121 is provided on the second fork 12 at a position corresponding to the first positioning groove 111. After the connecting rod 14 adjusts the distance between the first fork 11 and the second fork 12, the first positioning groove 111 and the second positioning groove 121 serve as fixing grooves for fixing the nut to be installed.

[0062] When different first parts 5 and second parts 6 are fixedly connected, and different sizes of nuts are required, in this embodiment, by rotating the connecting rod 14, the distance between the second fork 12 and the second fork 12 is adjusted, thereby changing the distance between the first positioning groove 111 and the second positioning groove 121. Nuts of different sizes can be fixed between the first positioning groove 111 and the second positioning groove 121, thereby adapting to the installation requirements of different parts.

[0063] Example 3

[0064] The flexible deformation device for installing nuts in narrow gaps described in this embodiment is based on Embodiment 1, such as... Figure 3 As shown, the front fork 1 includes a first component 15, a second component 16, and a fixing structure 17. One end of the first component 15 is hinged to the connecting block 2, and the other end of the first component 15 has an opening structure 152. A groove 151 is formed on the side wall of the opening structure 152. The second component 16 matches the opening structure 152. A slider 161 is formed on the outer wall of the second component 16 at a position that matches the groove 151. The slider 161 is inserted into the groove 151. The second component 16 is connected to the first component 15. The second component 16 also includes a fixing groove 162 for locking a nut, serving as a fixing point for the nut. The fixing structure 17 is self-contained. The movable locking structure has a fixed structure 17 hinged to the second component 16 via a first pivot. The second component 16 has a first column located at the front end of the slider 161. The first column is connected to the first pivot via a spring. When the second component 16 is inserted into the first component 15, the slider 161 slides to the other end of the slide groove 151. The first column contacts the side wall of the second component 16 and rotates. The first column drives the first pivot to rotate via the spring. The first pivot drives the fixed structure 17 to rotate. The fixed structure 17 is a rectangular frame. The inner frame of the fixed structure 17 can accommodate the first component 15 and the second component 16, thus fixing the first component 15 and the second component 16 together.

[0065] In the embodiment, there are second components 16 of different sizes. The external dimensions of the multiple second components 16 are the same, that is, the external dimensions of the multiple second components 16 are all matched with the opening structure 152 of the first component 15. The fixing grooves 162 of the different second components 16 are different in size, so that the different second components 16 can fix nuts of different sizes and complete the installation of nuts of different sizes.

[0066] In this embodiment, when it is necessary to install nuts of different sizes, the unsuitable second part 16 can be removed from the first part 15 and replaced with a suitable second part 16 to achieve the technical effect of installing nuts of different sizes.

[0067] Example 4

[0068] The flexible deformation device for installing nuts in narrow gaps described in this embodiment is based on Embodiment 2. The connecting block 2 includes a first sub-component, a second sub-component, and a Z-shaped rod 20, as shown below. Figure 4 As shown, the Z-shaped rod 20 is Z-shaped. One end of the first sub-component is hinged to the front fork, and the other end of the first sub-component is connected to one end of the Z-shaped rod 20. The second sub-component and the handle have Z-shaped grooves 21 for accommodating the connecting member. The Z-shaped grooves 21 include a first sub-groove 211, a second sub-groove 212, and a third sub-groove 213. The first sub-groove 211 is formed on the second sub-component, the second sub-groove 212 is formed on the vertical rod structure, and the third sub-groove 213 is formed on the horizontal rod structure. A first limiting rod 22 is provided on the horizontal rod, and the first limiting rod 22 is correspondingly positioned above the third sub-groove 213. A second limiting rod 23 is provided on the second sub-component, and the second limiting rod 23 is correspondingly positioned on the first sub-groove 211. An actuating rod 24 is provided on the Z-shaped rod 20, and the actuating rod 24 is located at the other end of the Z-shaped rod 20.

[0069] In this embodiment, the flexible deformation device for installing nuts in narrow gaps, when transporting the nut from the second gap to the first gap, if the installation point of the nut in the small gap between the plates is greater than the length of the connecting block and the fork, the action rod 24 is pushed on the third sub-groove 213 in the crossbar structure, causing the Z-shaped rod 20 to move along the third sub-groove 213 towards the installation point. The first component connected to one end of the Z-shaped rod 20, under the push of the action rod 24, pushes the fork to move towards the installation point, ensuring that the nut is transported to the installation point.

[0070] Example 5

[0071] The flexible deformation device for installing nuts in narrow gaps described in this embodiment is based on Embodiment 2, such as... Figure 5As shown, the installation tool also includes a positioning component 4, which includes a first positioning rod 41, a second positioning rod 42, a fixing member 43, and a rotating shaft 44. The first positioning rod 41 is fixed on the crossbar structure 32, and the second positioning rod 42 is arranged opposite to the first positioning rod 41. The rotating shaft 44 is fixed at the receiving groove 321 of the crossbar structure, and the rotating shaft 44 is arranged close to the second positioning rod 42. One end of the second positioning rod 42 is rotatably arranged on the rotating shaft 44. A first groove 411 is formed on the side wall of the first positioning rod 41 facing the second positioning rod 42, and a second groove 421 is formed at the position of the second positioning rod 42 corresponding to the first groove 411. When the first positioning rod 41 and the second positioning rod 42 are arranged opposite to each other, the first groove 411 and the second groove 421 are spliced ​​together to form a positioning through hole. The positioning through hole is located directly above the fixing point on the front fork 1.

[0072] Furthermore, the fixing member 43 is an elastic rope, which is disposed on the first positioning rod 41. When the first positioning rod 41 and the second positioning rod 42 are disposed opposite to each other, the fixing member 43 binds and fixes the first positioning rod 41 and the second positioning rod 42.

[0073] In this embodiment, by utilizing structural changes in the fork 1, connecting block 2, and handlebar 3, the nut is delivered to the mounting point, which is located directly below the first through hole 52 of the first part 5 and the second through hole 64 of the second part 6, as shown below. Figure 5 As shown, at this time, the positioning through hole formed by the splicing of the first groove 411 and the second groove 421 is located directly above the installation point. The screw passes through the positioning through hole formed by the splicing of the first groove 411 and the second groove 421, the first through hole 52 and the second through hole 64 in sequence, and is positioned to the center through hole of the nut. Then the screw is fixedly connected to the nut. The binding member 45 is an elastic rope. The binding member 45 is removed from the first positioning rod 41 and the second positioning rod 42. The second fixing rod is rotated, and the second positioning rod 42 is separated from the first positioning rod 41. The screw can be separated from the installation tool. The screw and the nut have completed the initial connection. The installation tool can be taken out from the installation gap of the first part 5 and the second part 6. Then the screw is tightened until the fixed connection of the first part 5 and the second part 6 is completed.

[0074] Example 6

[0075] In another aspect, the present invention also provides an installation method, such as... Figure 10 As shown, the first part 5 and the second part 6 are fixedly connected using the aforementioned flexible deformation device suitable for installing nuts in narrow gaps. The method includes the following steps:

[0076] Step 1: Fix the nut on the front fork 1; The front fork 1 is provided with an adhesive layer, and the nut is adhered to the front fork so that the nut can move with the front fork 1 to the nut installation position in the small gap between the plates.

[0077] Step 2: The front fork 1 and the connecting block 2 hang down naturally, along the second installation gap 8, until the front end of the front fork 1 touches the bottom plate, that is, touches the strip plate;

[0078] Step 3: The handle 3 moves in the opposite direction to the mounting point, and the rear end of the fork 1 moves away from the mounting point in accordance with the handle 3 and touches the bottom plate; keep the front end of the fork 1 in contact with the bottom plate, and gently pull the handle 3 in the opposite direction to the mounting point to tilt the fork 1.

[0079] Step 4: The handle 3 moves toward the mounting point, causing the fork 1 to transport the nut directly below the mounting point. As the handle 3 is pushed toward the mounting point, the fork 1 moves along the tilt angle, and then the handle 3 moves downward, causing the rear end of the fork 1 to also abut against the bottom plate. The handle 3 is then pushed toward the mounting point to push the nut into the first gap 7 until the nut is transported directly below the mounting point.

[0080] In this embodiment, the installation method further includes step five, in which a screw passes through the mounting through hole on the part to be fixed and is fastened to a nut located directly below the mounting point.

[0081] In this embodiment, the installation method utilizes the adaptive rotation of the fork 1, connecting block 2, and handlebar 3 to set the nut fixed on the fork 1. The fork 1, connecting block 2, and vertical rod structure 31 are vertically downward, driving the nut from the second gap 8 into the space between the first and second parts. By controlling the direction of movement of the handlebar, the nut on the fork 1 is made to face the installation point. Pushing the handlebar 8 pushes the fork and nut into the first gap 7 until they move directly below the installation point. Then, the screw passes through the first through hole on the first part, the second through hole on the second part, and connects to the center hole of the nut, completing the installation process of the nut in the small gap between the plates.

[0082] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A flexible deformation device suitable for installing nuts in narrow gaps, characterized in that, include: A front fork, a connecting block, a handlebar, an adjusting bolt, and a positioning assembly; the adjusting bolt is disposed on the front fork; the front fork and the connecting block are hinged via a first pivot, and the connecting block and the handlebar are hinged via a second pivot; The fork includes a first fork body, a second fork body, a main body, and a connecting rod. The first fork body has a first threaded hole, and the second fork body has a second threaded hole at a position corresponding to the first threaded hole. The connecting rod passes through the first threaded hole and the second threaded hole to adjust the distance between the first fork body and the second fork body. The first fork body has a first positioning groove, and the second fork body has a second positioning groove at a position corresponding to the first positioning groove. After the connecting rod adjusts the distance between the first fork body and the second fork body, the first positioning groove and the second positioning groove serve as fixing grooves for fixing the nut to be installed. The positioning assembly includes a first positioning rod and a second positioning rod. The fork consists of two positioning rods, a fixing element, and a rotating shaft. The first positioning rod is fixed to the crossbar structure, and the second positioning rod is positioned opposite to the first positioning rod. The rotating shaft is fixed to the receiving groove of the crossbar structure and is positioned close to the second positioning rod. One end of the second positioning rod is rotatably mounted on the rotating shaft. A first groove is formed on the side wall of the first positioning rod facing the second positioning rod, and a second groove is formed on the second positioning rod at a position corresponding to the first groove. When the first positioning rod and the second positioning rod are positioned opposite each other, the first groove and the second groove are joined together to form a positioning through hole, which is located directly above the fixing point on the fork. The handle has an L-shaped structure. By utilizing the structural changes of the fork, connecting block, and handle, the nut is delivered to the mounting point, which is located directly below the first through hole of the first part and the second through hole of the second part. At this time, the positioning through hole formed by the splicing of the first groove and the second groove is located directly above the mounting point. The screw passes through the positioning through hole formed by the splicing of the first groove and the second groove, the first through hole, and the second through hole in sequence, and is positioned to the center through hole of the nut. Then, the screw and the nut are fixedly connected.

2. The flexible deformation device for installing nuts in narrow gaps according to claim 1, characterized in that, The handle includes a vertical bar structure and a horizontal bar structure.

3. The flexible deformation device for installing nuts in narrow gaps according to claim 2, characterized in that, The lower end of the vertical rod structure is connected to the connecting block.

4. The flexible deformation device for installing nuts in narrow gaps according to claim 3, characterized in that, One end of the horizontal bar structure is located at the upper end of the vertical bar structure.

5. The flexible deformation device for installing nuts in narrow gaps according to claim 4, characterized in that, The other end of the crossbar structure is opposite to the mounting point of the nut installed in the small gap between the plates.

6. The flexible deformation device for installing nuts in narrow gaps according to claim 5, characterized in that, The fork is provided with a fixing point for fixing nuts.

7. The flexible deformation device for installing nuts in narrow gaps according to claim 6, characterized in that, An adhesive layer is provided on the fixed site.

8. An installation method, characterized in that, Using the flexible deformation device for installing nuts in narrow gaps as described in any one of claims 1 to 7, the method comprises the following steps: Step 1: Secure the nuts to the front fork; Step 2: The fork and the connecting block hang down naturally, along the installation gap, until the front end of the fork touches the bottom plate. Step 3: The handle moves in the opposite direction to the mounting point, and the rear end of the fork moves away from the mounting point in accordance with the handle and touches the bottom plate; Step 4: The handle moves toward the mounting point, causing the fork to move the nut directly below the mounting point.

9. The installation method according to claim 8, characterized in that, It also includes step five, where the screw passes through the mounting hole on the part to be fixed and is fastened to the nut located directly below the mounting point.

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