A detachable insulating sleeve screw

Abstract

The utility model relates to screw technical field, and disclose a detachable insulating sleeve screw, including screw body, the upper end fixed mounting of screw body has round head, the left and right sides of round head are provided with side respectively, the upper end swing joint of round head has upper insulating sleeve, the outer wall swing joint of round head has the lower insulating sleeve below upper insulating sleeve, the left and right sides of lower insulating sleeve upper end surface all fixed mounting have fixed link. The utility model through the cooperation between screw body, side, upper insulating sleeve, lower insulating sleeve and quick -release assembly, utilize the setting of quick -release assembly, realized the fixed role of upper insulating sleeve and lower insulating sleeve at screw body, adopt to change quick -release assembly and the connecting mode of upper insulating sleeve, simplified the dismounting step of upper insulating sleeve and lower insulating sleeve, make the original unremovable structure become two freely assembled single product combination, reduced the difficulty in the production of product, played the role of reducing cost.

Description

Technical Field

[0001] This utility model relates to the field of screw technology, specifically to a detachable insulating sleeve screw. Background Technology

[0002] Ordinary machine screws are made of carbon steel, which has excellent electrical conductivity. However, when machine screws are used in certain assemblies, they need to serve an insulating function.

[0003] However, currently, insulated screws on the market are all injection molded together with the screw head and the insulating sleeve. The screw is manufactured first, and then the insulating sleeve and screw are injection molded together in a secondary processing at the injection molding plant. This process involves sequential steps, which lengthens the processing flow, resulting in slow speed and high labor costs during injection molding. This increases the number of distribution links, causing longer delivery times. Furthermore, when the threads on the screw are damaged, the integrated screw and insulating sleeve must be scrapped, further increasing economic costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a detachable insulating sleeve screw. The insulating sleeve and screw are installed in a detachable manner, which avoids the insulating sleeve from being scrapped when the screw threads are damaged, reduces the cost of screw scrapping, and solves the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a detachable insulating sleeve screw, including a screw body, a round head fixedly installed on the upper end of the screw body, side edges respectively provided on the left and right sides of the round head, an upper insulating sleeve movably engaged at the upper end of the round head, a lower insulating sleeve located below the upper insulating sleeve movably engaged on the outer wall of the round head, and fixing rods fixedly installed on the left and right sides of the upper end face of the lower insulating sleeve, the fixing rods being movably connected to the upper insulating sleeve through a quick-release assembly, and a slot being provided on the outer side of the quick-release assembly.

[0006] Preferably, upper limit plates located on the outer sides are fixedly installed on the left and right sides of the inner wall of the upper insulating sleeve. Grooves located above the lower insulating sleeve are opened on the inner walls of the front and rear sides of the upper insulating sleeve. An upper cylindrical groove is opened in the middle of the upper insulating sleeve, and the inner wall of the upper cylindrical groove is movably sleeved with the outer wall of the round head. Slots are opened on the left and right sides of the lower end face of the upper insulating sleeve, and the inner wall of the slots is movably sleeved with the outer wall of the fixing rod. Baffles located on the outer side of the quick-release assembly are fixedly installed on the left and right sides of the upper insulating sleeve, and a round hole is opened in the middle of the baffle.

[0007] Preferably, the bottom surface of the lower insulating sleeve has a through hole, and the inner wall of the through hole is movably sleeved with the outer wall of the screw body. The middle part of the lower insulating sleeve has a lower cylindrical groove. The left and right sides of the upper end face of the lower insulating sleeve are fixedly installed with protruding rods. The left and right sides of the inner wall of the lower cylindrical groove are respectively fixedly installed with lower limit blocks located on the outer side.

[0008] Preferably, a rubber ring is fixedly sleeved on the outer wall of the protruding rod, and the outer wall of the rubber ring is movably sleeved with the inner wall of the groove.

[0009] Preferably, the quick-release assembly includes a spring and a movable block, the inner end of the spring is fixedly connected to the inner wall of the fixed rod, and the end of the spring away from the fixed rod is fixedly connected to the inner side of the movable block.

[0010] Preferably, a slot is provided on the outer side of the movable block, and the outer wall of the movable block is movably connected to the inner wall of the upper insulating sleeve.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model achieves the fixing function of the upper and lower insulating sleeves on the screw body by cooperating with the screw body, side, upper insulating sleeve, lower insulating sleeve and quick-release assembly. By changing the connection method between the quick-release assembly and the upper insulating sleeve, the disassembly and assembly steps of the upper and lower insulating sleeves are simplified, and the original non-removable structure is transformed into two freely assembleable single-item combinations, which reduces the difficulty in product production and plays a role in reducing costs.

[0013] 2. This utility model utilizes the cooperation between the screw body, upper insulating sleeve, lower insulating sleeve, quick-release component, and round hole. By opening the round hole, the quick-release component can not only be hidden inside the upper insulating sleeve to prevent accidental contact, but also can be separated from the upper insulating sleeve by pressing through the round hole, thus achieving the separation effect of the upper and lower insulating sleeves. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a bottom view of the through hole in this utility model;

[0016] Figure 3 This is a cross-sectional view of the insulating sleeve of this utility model;

[0017] Figure 4 This is a cross-sectional view of the round head of this utility model;

[0018] Figure 5 This utility model Figure 4 A magnified view of point A;

[0019] Figure 6 This is a top view of the lower cylindrical groove of this utility model;

[0020] Figure 7 This is a top view of the fixing rod of this utility model;

[0021] Figure 8 This is a bottom view of the card slot of this utility model.

[0022] In the diagram: 1. Screw body; 2. Round head; 3. Side; 4. Upper insulating sleeve; 5. Lower insulating sleeve; 6. Fixing rod; 7. Quick-release assembly; 701. Spring; 702. Movable block; 8. Slot; 9. Upper limit plate; 10. Groove; 11. Upper cylindrical groove; 12. Slot; 13. Baffle; 14. Round hole; 15. Through hole; 16. Lower cylindrical groove; 17. Protruding rod; 18. Rubber ring; 19. Lower limit block. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 , Figure 2 and Figure 8 A detachable insulating sleeve screw includes a screw body 1, a round head 2 fixedly mounted on the upper end of the screw body 1, side edges 3 respectively provided on the left and right sides of the round head 2, an upper insulating sleeve 4 movably engaged at the upper end of the round head 2, and a lower insulating sleeve 5 located below the upper insulating sleeve 4 movably engaged on the outer wall of the round head 2. Fixing rods 6 are fixedly mounted on the left and right sides of the upper end face of the lower insulating sleeve 5. The fixing rods 6 are movably connected to the upper insulating sleeve 4 through a quick-release assembly 7. By changing the connection method between the quick-release assembly 7 and the upper insulating sleeve 4, the connection or separation of the upper insulating sleeve 4 and the lower insulating sleeve 5 can be realized, turning the original non-detachable structure into two freely assembleable single-item combinations, reducing the difficulty in product manufacturing and playing a role in cost reduction. A slot 8 is opened on the outer side of the quick-release assembly 7.

[0025] Upper insulating sleeve 4 has upper limit plates 9 fixedly installed on the left and right sides of the inner wall, located outside the side 3. The inner walls of the front and rear sides of the upper insulating sleeve 4 have grooves 10 located above the lower insulating sleeve 5. The upper insulating sleeve 4 has an upper cylindrical groove 11 in the middle, and the inner wall of the upper cylindrical groove 11 is movably connected to the outer wall of the round head 2. The lower end face of the upper insulating sleeve 4 has slots 12 on the left and right sides respectively, and the inner wall of the slots 12 is movably connected to the outer wall of the fixing rod 6. The upper insulating sleeve 4 has baffles 13 fixedly installed on the left and right sides, located outside the quick-release assembly 7. The baffles 13 have a round hole 14 in the middle, and the round hole 14 facilitates the adjustment of the position of the wire or card remover on the quick-release assembly 7.

[0026] Please see Figure 3 , Figure 4 and Figure 6 The bottom surface of the lower insulating sleeve 5 is provided with a through hole 15, and the inner wall of the through hole 15 is movably sleeved with the outer wall of the screw body 1. The middle part of the lower insulating sleeve 5 is provided with a lower cylindrical groove 16. The left and right sides of the upper end face of the lower insulating sleeve 5 are fixedly installed with protruding rods 17. The left and right sides of the inner wall of the lower cylindrical groove 16 are respectively fixedly installed with lower limit blocks 19 located outside the side 3. The opening of the lower cylindrical groove 16 provides space for the installation of the round head 2.

[0027] A rubber ring 18 is fixedly sleeved on the outer wall of the protruding rod 17. The rubber ring 18 fills the gap between the protruding rod 17 and the groove 10, thereby strengthening the tightness of the upper insulating sleeve 4 and the lower insulating sleeve 5 after they are installed on the round head 2. The outer wall of the rubber ring 18 is movably sleeved with the inner wall of the groove 10.

[0028] Please see Figure 5 and Figure 6 The quick-release assembly 7 includes a spring 701 and a movable block 702. The inner end of the spring 701 is fixedly connected to the inner wall of the fixed rod 6, and the end of the spring 701 away from the fixed rod 6 is fixedly connected to the inner side of the movable block 702. By using the compression and rebound of the spring 701, the movable block 702 is pushed from the inside of the fixed rod 6 to the inside of the upper insulating sleeve 4. At this time, the fixed rod 6 connects the upper insulating sleeve 4 and the lower insulating sleeve 5.

[0029] The movable block 702 has a slot 8 on its outer side. By opening the slot 8, a wire or a card remover can be inserted from the inside of the round hole 14 into the slot 8. Pressing the movable block 702 into the fixed rod 6 causes the spring 701 to be compressed, and the outer wall of the movable block 702 is movably connected to the inner wall of the upper insulating sleeve 4.

[0030] Working principle: In use, first, install the upper insulating sleeve 4 and the lower insulating sleeve 5 on the side 3, cover the round head 2 with the upper insulating sleeve 4, and fit the upper limit plates 9 on the left and right sides with the outer sides of the left and right sides 3. The upper cylindrical groove 11 is fitted on the outside of the round head 2. Then, after passing through the screw body 1, install the lower insulating sleeve 5 below the upper insulating sleeve 4. At this time, the through hole 15 is fitted with the screw body 1, and the lower limit blocks 19 on the left and right sides fit with the outer sides of the left and right sides 3. Insert the fixing rod 6 into the slot 12. At this time, the protruding rod 17 is inserted into the groove 10. The rubber ring 18 is used to fill the gap between the protruding rod 17 and the groove 10, thereby strengthening the fastening of the upper insulating sleeve 4 and the lower insulating sleeve 5 after installation on the round head 2. Using the compression and rebound of spring 701, the movable block 702 is pushed from the inside of the fixed rod 6 to the inside of the upper insulating sleeve 4. At this time, the fixed rod 6 connects the upper insulating sleeve 4 and the lower insulating sleeve 5. Then, when it is necessary to remove the screw body 1, use a wire or a clip to insert from the inside of the round hole 14 into the slot 8, press the movable block 702 to move it into the inside of the fixed rod 6, so that the spring 701 is compressed until the movable block 702 is pressed into the inside of the fixed rod 6, so that the movable block 702 is separated from the upper insulating sleeve 4, and the upper insulating sleeve 4 and the lower insulating sleeve 5 can be separated. Finally, by changing the position of the quick-release assembly 7, the installation or removal of the upper insulating sleeve 4 and the lower insulating sleeve 5 on the round head 2 can be realized.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A removable insulating sleeve screw, comprising a screw body (1), characterized in that: A round head (2) is fixedly installed on the upper end of the screw body (1). Sides (3) are provided on the left and right sides of the round head (2). An upper insulating sleeve (4) is movably engaged on the upper end of the round head (2). A lower insulating sleeve (5) located below the upper insulating sleeve (4) is movably engaged on the outer wall of the round head (2). Fixing rods (6) are fixedly installed on the left and right sides of the upper end face of the lower insulating sleeve (5). The fixing rods (6) are movably connected to the upper insulating sleeve (4) through a quick-release assembly (7). A slot (8) is opened on the outer side of the quick-release assembly (7).

2. The detachable insulating sleeve screw according to claim 1, characterized in that: The upper insulating sleeve (4) has upper limit plates (9) fixedly installed on the left and right sides of the inner wall of the upper insulating sleeve (4) and located outside the side (3). The inner walls of the front and rear sides of the upper insulating sleeve (4) have grooves (10) located above the lower insulating sleeve (5). The upper insulating sleeve (4) has an upper cylindrical groove (11) in the middle, and the inner wall of the upper cylindrical groove (11) is movably connected to the outer wall of the round head (2). The lower end face of the upper insulating sleeve (4) has slots (12) on the left and right sides respectively, and the inner wall of the slots (12) is movably connected to the outer wall of the fixing rod (6). The upper insulating sleeve (4) has baffles (13) fixedly installed on the left and right sides and located outside the quick-release assembly (7). The baffles (13) have a round hole (14) in the middle.

3. The detachable insulating sleeve screw according to claim 2, characterized in that: The bottom surface of the lower insulating sleeve (5) is provided with a through hole (15), and the inner wall of the through hole (15) is movably sleeved with the outer wall of the screw body (1). The middle part of the lower insulating sleeve (5) is provided with a lower cylindrical groove (16). The left and right sides of the upper end face of the lower insulating sleeve (5) are fixedly installed with protruding rods (17). The left and right sides of the inner wall of the lower cylindrical groove (16) are respectively fixedly installed with lower limit blocks (19) located outside the side (3).

4. The detachable insulating sleeve screw according to claim 3, characterized in that: A rubber ring (18) is fixedly sleeved on the outer wall of the protruding rod (17), and the outer wall of the rubber ring (18) is movably sleeved with the inner wall of the groove (10).

5. A detachable insulating sleeve screw according to claim 2, characterized in that: The quick-release assembly (7) includes a spring (701) and a movable block (702). The inner end of the spring (701) is fixedly connected to the inner wall of the fixed rod (6), and the end of the spring (701) away from the fixed rod (6) is fixedly connected to the inner side of the movable block (702).

6. A detachable insulating sleeve screw according to claim 5, characterized in that: The movable block (702) has a slot (8) on its outer side, and the outer wall of the movable block (702) is movably connected to the inner wall of the upper insulating sleeve (4).

Images