A screw assembly guard

Abstract

The utility model discloses a screw assembly protection device relates to mechanical engineering technical field, the utility model discloses a screw, the nut is connected with the screw outer surface thread, be provided with the protection mechanism on the screw, be provided with locking mechanism on the screw, the protection mechanism includes the connecting ring fixedly connected on the screw outer surface, the utility model discloses the protection shell no.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical engineering technology, and in particular relates to a screw assembly protection device. Background Technology

[0002] Screw assembly protection devices are typically used to protect screws and related components from external environmental influences. They can be a simple cover, shield, or dustproof and waterproof housing, ensuring the proper functioning and long-term durability of screws and other fasteners.

[0003] After installation, most screws and nuts are exposed to the outside and come into direct contact with the air. The components in the air may cause the screws and nuts to rust or even be damaged, which is detrimental to the stability of the connection. Therefore, we propose a screw assembly protection device. Utility Model Content

[0004] The purpose of this utility model is to provide a screw assembly protection device. By pressing the first protective shell, the connecting plate on the first protective shell is locked in the annular groove. Then, by pressing the top cover, the top cover will lock the locking plate in the slot, thus solving the problem of protecting screws and nuts after installation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a screw assembly protection device, including a screw, a nut threadedly connected to the outer surface of the screw, a protective mechanism provided on the screw, and a locking mechanism provided on the screw;

[0007] The protective mechanism includes a connecting ring fixedly connected to the outer surface of the screw. An annular groove is formed inside the connecting ring. A connecting plate is slidably connected to the inner wall of the annular groove. A protective shell is fixedly connected to the side of the connecting plate away from the screw. A slot is formed inside the protective shell. A card plate is inserted into the inner wall of the slot. A top cover is fixedly connected to the outer surface of the card plate. A closing plate is fixedly connected to the side of the top cover near the screw. A collar is slidably connected to the top of the nut. A card block is inserted into the inner wall of the collar. A second protective shell is fixedly connected to the bottom of the card block.

[0008] Furthermore, the connecting plate is arc-shaped and has a certain degree of elasticity, the collar has a groove inside that matches the outer surface of the locking block, and the locking block is L-shaped and has a certain degree of elasticity.

[0009] Furthermore, a total of several connecting plates are provided, a total of several slots are provided, a total of several sealing plates are provided, the outer surface of the sealing plate is slidably connected to the outer surface of the screw, a total of several locking blocks are provided, and the inner wall of the second protective shell is slidably connected to the outer surface of the nut.

[0010] Furthermore, the locking mechanism includes a limiting block 1 slidably connected to the outer surface of the screw, a rotating shell 1 fixedly connected to the side of the limiting block 1 away from the screw, a rotating shell 2 rotatably connected to the inner wall of the rotating shell 1, a limiting block 2 fixedly connected to the outer surface of the rotating shell 2, a connecting groove opened inside the rotating shell 1, a fixing rod fixedly connected to the inner wall of the connecting groove, a sliding block slidably connected to the inner wall of the connecting groove, an insertion rod fixedly connected to the outer surface of the rotating shell 1, a slot opened inside the rotating shell 2, a fixing block inserted into the inner wall of the slot, and a storage component provided on the limiting block 1.

[0011] Furthermore, a C-shaped buckle is fixedly connected to the side of the sliding block near the fixed rod, the slot is cross-shaped, a cross block that matches the inner wall of the slot is fixedly connected to the bottom of the fixed block, and a groove that matches the outer surface of the insertion rod is opened inside the fixed block.

[0012] Furthermore, there are two limiting blocks in total, and two limiting blocks in total. The outer surface of the second limiting block is slidably connected to the outer surface of the screw. The side of the sliding block away from the fixed rod is fixedly connected to the outer surface of the second rotating shell. The inner wall of the fixed block is inserted into the outer surface of the insertion rod.

[0013] Furthermore, the storage component includes several limiting rings slidably connected to the outer surface of the limiting block one. The inner walls of the limiting rings are slidably connected to the outer surface of the rotating shell two. A movable plate is fixedly connected to the bottom of the limiting rings. Two fixing strips are fixedly connected to the outer surface of the movable plate. A storage box is slidably connected to the outer surface of the two fixing strips. Two limiting rods are fixedly connected to the inner wall of the storage box. A movable block is slidably connected to the outer surface of each of the two limiting rods. A spring is fixedly connected to the outer surface of the movable block. The end of the spring away from the movable block is fixedly connected to the outer surface of the limiting rod. The inner side of the spring is sleeved with the outer surface of the limiting rod. A slide bar is fixedly connected to the top of the movable block. The outer surface of the slide bar contacts the outer surface of the fixing strip. A cover plate is slidably connected to the outer surface of the storage box. A fixing component is provided on the cover plate.

[0014] Furthermore, the fixing component includes a first insert plate fixedly connected to the side of the cover plate near the storage box, a second insert plate fixedly connected to the outer surface of the cover plate, a limit strip inserted into the inner wall of the first insert plate, a guide groove adapted to the outer surface of the limit strip being opened inside the storage box, and two bolts rotatably connected to the inner wall of the limit strip, the outer surfaces of the two bolts being threaded to the inner wall of the storage box.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model features a protective shell. After the nut and screw are installed, the locking block on the second protective shell can be aligned with the collar. Then, the second protective shell can be pushed towards the collar. At this time, the second protective shell will cause the locking block to lock into the collar. Then, the protective shell can be placed on the screw and pressed down. By pressing and locking the top cover on the first protective shell, the screw and nut can be protected after installation. This effectively prevents corrosive substances such as moisture and salt in the air from contacting the screw and nut, thus increasing the stability of the connection.

[0017] 2. This utility model, by setting up a rotating shell, allows the fixing block to be pulled out from the rotating shell. At this time, the cross block will disengage from the slot, and the fixing block will also disengage from the insertion rod, thereby releasing the restriction of the fixing block on the rotating shell and the rotating shell. Then, the rotating shell and the rotating shell are pushed apart in a direction away from each other. By using the rotating shell and the rotating shell, which can fix the screw, the screw assembly can be protected, effectively preventing the screw and plastic parts from being damaged or deformed due to external impact.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the screw structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the protective shell structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the collar structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the connecting ring structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the top cover structure of this utility model;

[0026] Figure 7 This is a schematic diagram of the rotating shell structure of this utility model;

[0027] Figure 8 This utility model Figure 7 Enlarged structural diagram at point A in the middle;

[0028] Figure 9 This utility model Figure 7 Enlarged structural diagram at point B;

[0029] Figure 10 This is a schematic diagram of the limiting block of this utility model;

[0030] Figure 11 This is a schematic diagram of the limiting strip structure of this utility model;

[0031] Figure 12 This is a schematic diagram of the limiting ring structure of this utility model;

[0032] Figure 13 This is a schematic diagram of the movable plate structure of this utility model;

[0033] Figure 14 This is a schematic diagram of the slider structure of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 101. Screw; 102. Nut; 2. Protective Mechanism; 201. Connecting Ring; 202. Annular Groove; 203. Connecting Plate; 204. Protective Shell I; 205. Slot; 206. Clamping Plate; 207. Top Cover; 208. Sealing Plate; 209. Collar; 210. Protective Shell II; 211. Clamping Block; 3. Locking Mechanism; 301. Limiting Block I; 302. Rotating Shell I; 303. Rotating Shell II; 304. Limiting Block II; 305. 306. Connecting groove; 307. Fixing rod; 308. Sliding block; 309. Insert rod; 310. Slot; 311. Fixing block; 312. Limiting ring; 313. Moving plate; 314. Fixing strip; 315. Storage box; 316. Limiting rod; 317. Moving block; 318. Spring; 319. Sliding strip; 320. Cover plate; 321. First insert plate; 322. Second insert plate; 323. Limiting strip; 324. Bolt; 325. Guide groove. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figure 1-14As shown, this utility model is a screw assembly protection device, including a screw 101, a nut 102 threadedly connected to the outer surface of the screw 101, a protection mechanism 2 provided on the screw 101, and a locking mechanism 3 provided on the screw 101. This device protects the screw assembly through the locking mechanism 3. After the screw 101 and nut 102 are installed, they can be protected by the protection mechanism 2.

[0038] The protective mechanism 2 includes a connecting ring 201 fixedly connected to the outer surface of the screw 101. An annular groove 202 is provided inside the connecting ring 201. A connecting plate 203 is slidably connected to the inner wall of the annular groove 202. A protective shell 204 is fixedly connected to the side of the connecting plate 203 away from the screw 101. The protective shell 204 can be pressed towards the screw 101. At this time, the protective shell 204 will cause the connecting plate 203 to be clamped in the annular groove 202, thereby installing the protective shell 204.

[0039] The protective shell 1 204 has a slot 205 inside, and a retaining plate 206 is inserted into the inner wall of the slot 205. A top cover 207 is fixedly connected to the outer surface of the retaining plate 206. A sealing plate 208 is fixedly connected to the side of the top cover 207 near the screw 101. The top cover 207 can be pressed towards the protective shell 1 204. At this time, the top cover 207 will make the retaining plate 206 lock in the slot 205, thereby installing the top cover 207 on the protective shell 1 204. A collar 209 is slidably connected to the top of the nut 102. A retaining block 211 is inserted into the inner wall of the collar 209. A protective shell 210 is fixedly connected to the bottom of the retaining block 211. The retaining block 211 can lock in the collar 209, thereby installing the protective shell 210 on the nut 102. At this time, the protective shell 210 will protect the nut 102.

[0040] The connecting plate 203 is arc-shaped and has a certain degree of elasticity. The collar 209 has a groove inside that matches the outer surface of the locking block 211. The locking block 211 is L-shaped and has a certain degree of elasticity. When the locking block 211 contacts the groove on the collar 209, it will undergo slight deformation. When the protective shell 210 contacts the collar 209, the locking block 211 will return to its original shape and lock into the collar 209.

[0041] Several connecting plates 203, several slots 205, and several sealing plates 208 are provided. The sealing plates 208 fill the gap between the screw 101 and the protective shell 1 204, thereby sealing the space between the protective shell 1 204 and the screw 101 and further enhancing the protective effect. The outer surface of the sealing plate 208 is slidably connected to the outer surface of the screw 101. Several locking blocks 211 are provided. The inner wall of the protective shell 210 is slidably connected to the outer surface of the nut 102. The protective shell 210 slides on the screw 101, thereby better nesting on the nut 102 and protecting the nut 102.

[0042] The locking mechanism 3 includes a limiting block 301 that is slidably connected to the outer surface of the screw 101. A rotating shell 302 is fixedly connected to the side of the limiting block 301 away from the screw 101. A rotating shell 303 is rotatably connected to the inner wall of the rotating shell 302. A limiting block 304 is fixedly connected to the outer surface of the rotating shell 303. The limiting block 301 and the limiting block 304 fix the position of the screw 101, thereby preventing the screw 101 from colliding inside the rotating shell 302 and the rotating shell 303, and protecting the screw 101 and the plastic parts.

[0043] The rotating shell 302 has a connecting groove 305 inside, and a fixing rod 306 is fixedly connected to the inner wall of the connecting groove 305. A sliding block 307 is slidably connected to the inner wall of the connecting groove 305. The sliding block 307 can slide in the connecting groove 305, so that the rotating shell 302 and the rotating shell 303 can rotate away from each other, thereby facilitating the removal of the screw 101. A plug rod 308 is fixedly connected to the outer surface of the rotating shell 302. The rotating shell 303 has a slot 309 inside, and a fixing block 310 is inserted into the inner wall of the slot 309. The fixing block 310 can be installed on the rotating shell 302. At this time, the fixing block 310 fixes the rotating shell 302 and the rotating shell 303 to prevent them from rotating. The limiting block 301 is provided with a storage component.

[0044] A C-shaped buckle is fixedly connected to the side of the sliding block 307 near the fixed rod 306. The slot 309 is cross-shaped. A cross block that matches the inner wall of the slot 309 is fixedly connected to the bottom of the fixed block 310. A groove that matches the outer surface of the insertion rod 308 is opened inside the fixed block 310. The cross block at the bottom of the fixed block 310 can be inserted into the slot 309. At the same time, the insertion rod 308 will also be inserted tightly into the fixed block 310, thereby fixing the position of the fixed block 310.

[0045] There are two limit blocks 301 and two limit blocks 304. The outer surface of the limit block 304 is slidably connected to the outer surface of the screw 101. The side of the sliding block 307 away from the fixed rod 306 is fixedly connected to the outer surface of the rotating shell 303. The inner wall of the fixed block 310 is inserted into the outer surface of the insertion rod 308. When the insertion rod 308 is inserted into the fixed block 310, the fixed block 310 fixes the position of the rotating shell 302 and the rotating shell 303, so that the screw 101 will not come out of the rotating shell 302 and the rotating shell 303, thus protecting the screw 101.

[0046] The storage component includes several limiting rings 311 that are slidably connected to the outer surface of the limiting block 301. The inner walls of the limiting rings 311 are slidably connected to the outer surface of the rotating shell 303. A movable plate 312 is fixedly connected to the bottom of the limiting rings 311. Two fixing strips 313 are fixedly connected to the outer surface of the movable plate 312. The limiting rings 311 restrict the limiting block 301 and the rotating shell 303 to prevent them from shifting due to shaking during storage and to avoid unnecessary collisions.

[0047] A storage box 314 is slidably connected to the outer surfaces of two fixed bars 313. Two limiting rods 315 are fixedly connected to the inner wall of the storage box 314. A movable block 316 is slidably connected to the outer surface of each limiting rod 315. A spring 317 is fixedly connected to the outer surface of each movable block 316. The limiting rods 315 restrict the movement trajectory of the movable block 316 to prevent it from deviating during movement, ensuring normal transmission of the device. The end of the spring 317 furthest from the movable block 316 is fixedly connected to the outer surface of the limiting rod 315, and the inner side of the spring 317 is... The limiting rod 315 is sleeved on the outer surface, and the top of the moving block 316 is fixedly connected to the slide bar 318. The limiting rod 315 restricts the position of the spring 317 to prevent the spring 317 from tilting or shifting during movement, ensuring that the spring 317 can return to its normal position. The outer surface of the slide bar 318 contacts the outer surface of the fixing bar 313. The outer surface of the storage box 314 is slidably connected to the cover plate 319, which is equipped with a fixing component. The cover plate 319 closes the storage box 314 to prevent the limiting block 301 from detaching from the storage box 314.

[0048] The fixing assembly includes a first insert plate 320 fixedly connected to the side of the cover plate 319 near the storage box 314, a second insert plate 321 fixedly connected to the outer surface of the cover plate 319, and a limiting strip 322 inserted into the inner wall of the first insert plate 320. The first insert plate 320 and the second insert plate 321 can be inserted into the storage box 314 to initially position the cover plate 319, facilitating subsequent fixing of the cover plate 319. The storage box 314 has a guide groove 324 adapted to the outer surface of the limiting strip 322. Two bolts 323 are rotatably connected to the inner wall of the limiting strip 322. The outer surfaces of the two bolts 323 are threaded to the inner wall of the storage box 314, allowing the bolts 323 to be tightened inside the limiting strip 322 to fix the limiting strip 322. At this time, the limiting strip 322 will fix the cover plate 319.

[0049] One specific application of this embodiment is:

[0050] When the operator needs to use the equipment and removes the limiting block 301 from the storage box 314, they can first unscrew the two bolts 323 from the limiting strip 322 and the storage box 314, then remove the limiting strip 322 from the storage box 314 and the first insert plate 320, and finally pull the cover plate 319 away from the storage box 314. At this time, the cover plate 319 will cause the first insert plate 320 and the second insert plate 321 to disengage from the storage box 314. Due to the initial state of the spring 317... In the stretched state, during the movement of the cover plate 319, the spring 317 will slowly return to its original state, pulling the moving block 316 toward the cover plate 319. At this time, the moving block 316 will push the fixed bar 313 through the slide bar 318, thereby causing the fixed bar 313 to drive the moving plate 312 to move, thereby pushing most of the moving plate 312 out of the storage box 314, making it convenient to take the moving plate 312 out of the storage box 314, thus making it convenient to take out the limit block 301.

[0051] First, pull the fixing block 310 out of the rotating shell 2 303. At this time, the cross block will disengage from the slot 309, and the fixing block 310 will also disengage from the insertion rod 308, thereby releasing the restriction of the fixing block 310 on the rotating shell 2 303. Then, pull the rotating shell 2 303 away from each other. At this time, the sliding block 307 will slide in the connecting groove 305, and the sliding block 307 will also drive the C-shaped buckle to disengage from the fixing rod 306, thereby opening the rotating shell 1 302 and the rotating shell 2 303. Then, the screw 101 and nut 102 can be removed from the limiting block 1 301, which can protect the screw assembly and effectively prevent the screw and plastic parts from being damaged or deformed due to external impact.

[0052] When it is necessary to tighten the nut 102 onto the screw 101, first put the collar 209 onto the screw 101, and then tighten the nut 102 onto the screw 101. After the nut 102 and screw 101 are installed, align the locking block 211 on the second protective shell 210 with the collar 209, and then push the second protective shell 210 towards the collar 209. At this time, the second protective shell 210 will drive the locking block 211 to lock into the collar 209. Then put the first protective shell 204 onto the screw 101 and press it down. At this time, the first protective shell 204 will drive the connecting plate 203 to move towards the annular groove 202, and then the connecting plate 203 will be locked into the annular groove 202 on the connecting ring 201.

[0053] Then, press and push the top cover 207 towards the protective shell 204. At this time, the top cover 207 will drive the sealing plate 208 to clamp onto the screw 101, filling and sealing the gap. At the same time, the top cover 207 will also drive the clamping plate 206 to move, so that the clamping plate 206 is clamped into the slot 205 on the protective shell 204, thereby fixing the top cover 207. This achieves the effect of protecting the screw 101 and nut 102 after installation, effectively preventing corrosive substances such as moisture and salt in the air from contacting the screw and nut, and increasing the stability of the connection.

[0054] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A screw assembly guard comprising a screw (101), characterized in that: The screw (101) has a nut (102) threadedly connected to its outer surface. The screw (101) is provided with a protective mechanism (2) and a locking mechanism (3). The protective mechanism (2) includes a connecting ring (201) fixedly connected to the outer surface of the screw (101). The connecting ring (201) has an annular groove (202) inside. A connecting plate (203) is slidably connected to the inner wall of the annular groove (202). A protective shell (204) is fixedly connected to the side of the connecting plate (203) away from the screw (101). A slot (205) is opened inside the protective shell (204). A card plate (206) is inserted into the inner wall of the slot (205). A top cover (207) is fixedly connected to the outer surface of the card plate (206). A closing plate (208) is fixedly connected to the side of the top cover (207) near the screw (101). A collar (209) is slidably connected to the top of the nut (102). A card block (211) is inserted into the inner wall of the collar (209). A second protective shell (210) is fixedly connected to the bottom of the card block (211).

2. A screw assembly guard according to claim 1, wherein, The connecting plate (203) is arc-shaped and made of plastic. The collar (209) has a groove inside that matches the outer surface of the locking block (211). The locking block (211) is L-shaped and made of plastic.

3. A screw assembly guard according to claim 1, wherein, A plurality of connecting plates (203) are provided, a plurality of slots (205) are provided, a plurality of closing plates (208) are provided, the outer surface of the closing plate (208) is slidably connected to the outer surface of the screw (101), a plurality of locking blocks (211) are provided, and the inner wall of the second protective shell (210) is slidably connected to the outer surface of the nut (102).

4. A screw assembly guard according to claim 1, wherein, The locking mechanism (3) includes a limiting block (301) slidably connected to the outer surface of the screw (101). A rotating shell (302) is fixedly connected to the side of the limiting block (301) away from the screw (101). A rotating shell (303) is rotatably connected to the inner wall of the rotating shell (302). A limiting block (304) is fixedly connected to the outer surface of the rotating shell (303). A connecting groove (305) is provided inside the rotating shell (302). A fixing rod (306) is fixedly connected to the inner wall of the connecting groove (305). A sliding block (307) is slidably connected to the inner wall of the connecting groove (305). An insert rod (308) is fixedly connected to the outer surface of the rotating shell (302). A slot (309) is provided inside the rotating shell (303). A fixing block (310) is inserted into the inner wall of the slot (309). A storage component is provided on the limiting block (301).

5. A screw assembly guard according to claim 4, wherein, The sliding block (307) is fixedly connected to a C-shaped buckle on the side near the fixed rod (306). The slot (309) is cross-shaped. The bottom of the fixed block (310) is fixedly connected to a cross block that matches the inner wall of the slot (309). The fixed block (310) has a groove inside that matches the outer surface of the insertion rod (308).

6. A screw assembly guard according to claim 4, wherein, Two limit blocks (301) are provided, and two limit blocks (304) are provided. The outer surface of the limit block (304) is slidably connected to the outer surface of the screw (101). The side of the sliding block (307) away from the fixed rod (306) is fixedly connected to the outer surface of the rotating shell (303). The inner wall of the fixed block (310) is inserted into the outer surface of the insertion rod (308).

7. A screw assembly protection device according to claim 4, characterized in that, The storage component includes several limiting rings (311) slidably connected to the outer surface of the limiting block one (301). The inner walls of the limiting rings (311) are slidably connected to the outer surface of the rotating shell two (303). A movable plate (312) is fixedly connected to the bottom of the limiting rings (311). Two fixing strips (313) are fixedly connected to the outer surface of the movable plate (312). A storage box (314) is slidably connected to the outer surface of the two fixing strips (313). Two limiting rods (315) are fixedly connected to the inner wall of the storage box (314). The outer surface of the two limiting rods (315) is... Each of the storage boxes (314) is slidably connected to a movable block (316), and a spring (317) is fixedly connected to the outer surface of the movable block (316). One end of the spring (317) away from the movable block (316) is fixedly connected to the outer surface of the limiting rod (315). The inner side of the spring (317) is sleeved with the outer surface of the limiting rod (315). A slide bar (318) is fixedly connected to the top of the movable block (316). The outer surface of the slide bar (318) is in contact with the outer surface of the fixing bar (313). A cover plate (319) is slidably connected to the outer surface of the storage box (314). A fixing component is provided on the cover plate (319).

8. A screw assembly guard according to claim 7, wherein, The fixing assembly includes a first insert plate (320) fixedly connected to the cover plate (319) on the side near the storage box (314), a second insert plate (321) fixedly connected to the outer surface of the cover plate (319), a limiting strip (322) inserted into the inner wall of the first insert plate (320), a guide groove (324) adapted to the outer surface of the limiting strip (322) is provided inside the storage box (314), and two bolts (323) are rotatably connected to the inner wall of the limiting strip (322), and the outer surfaces of the two bolts (323) are threaded to the inner wall of the storage box (314).

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