Fastener convenient for adjusting butt joint height

Abstract

The fastener comprises a supporting device, a displacement device is slidably connected to the outer ring of the supporting device in a sleeving mode, limiting devices are slidably connected to the two ends of the top of the displacement device in an inserted mode, and screws are slidably connected between the limiting devices and the displacement device in an inserted mode. The displacement device comprises a positioning bolt, clamping keys, an extending support, a supporting bottom plate, a pointer and a rear plate, the clamping keys are symmetrically and fixedly installed at the front end of the rear plate, the clamping keys and the pointer are fixedly installed at the opposite ends of the extending support, the pointer is located in front of the clamping keys, and the supporting bottom plate is fixedly installed at the end, away from the clamping keys, of the extending support. The positioning bolt is inserted into the center of the rear end of the rear plate in a threaded mode, and the limiting device comprises a limiting clamping plate and a movable rod. Through the arrangement of the limiting device, the displacement device and the supporting device, the purpose that the screw can be supported at the specified height for installation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fasteners, in particular to a fastener which is convenient for adjusting the butt height. Background Art

[0002] Fasteners are mechanical elements used to connect, fix or fasten two or more parts. They are widely used in various industrial fields, including construction, automobiles, aerospace, electronic equipment, mechanical equipment, etc. The main function of fasteners is to provide a reliable connection and ensure that the components remain stable under force or vibration conditions.

[0003] For example, a fastener with Chinese patent publication number CN220015754U belongs to the technical field of fasteners, which includes a drive head, a screw rod and a rubber shell plug. The screw rod is integrally formed on one side of the drive head, and a drive groove for inserting a screwdriver is provided on the side of the drive head away from the screw rod. The rubber shell plug is inserted into the drive groove, and a docking groove adapted to the drive groove for inserting a screwdriver is provided on the side of the rubber shell plug away from the bottom of the drive groove.

[0004] The fasteners in the above patent can only prevent slipping when in use, while the existing screws need to be marked in advance to achieve the purpose of installing two screws at a specified height. This method needs to be coordinated with a variety of external measuring tools to be implemented, making it impossible to quickly and conveniently limit the screws to a specified height. Therefore, a device is needed to improve the above problem. Summary of the invention

[0005] The object of the present invention is to provide a fastener that is convenient for adjusting the butt height, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fastener that is convenient for adjusting the docking height, comprising a supporting device, a displacement device is slidably sleeved on the outer ring of the supporting device, limiting devices are slidably inserted at both ends of the top of the displacement device, screws are slidably inserted between the limiting device and the displacement device, the displacement device comprises a positioning bolt, a key, an extension bracket, a supporting base plate, a pointer and a rear plate, the key is symmetrically fixedly installed at the front end of the rear plate, the key and the pointer are fixedly installed at the opposite end of the extension bracket, and the pointer is located in front of the key, the supporting base plate is fixedly installed at the end of the extension bracket away from the key, and the positioning bolt is threadedly inserted at the rear end center of the rear plate.

[0007] Preferably, the limiting device comprises a limiting clamping plate and a movable rod, and the movable rod is symmetrically fixedly mounted on the bottom end of the limiting clamping plate.

[0008] Preferably, the supporting device comprises side support plates, a central base plate and an anti-skid pad, the side support plates are fixedly mounted on both sides of the central base plate, and the central base plate is fixedly mounted on the top of the anti-skid pad.

[0009] Preferably, the key is slidably inserted into the inside of the side end support plate, and the movable rod is slidably inserted into the inside of the top end of the support bottom plate.

[0010] Preferably, arc grooves are provided at the top center of the supporting bottom plate and the bottom center of the limiting clamping plate, and the limiting clamping plate is made of magnets.

[0011] Preferably, the top of the supporting bottom plate is symmetrically provided with circular holes, the front end surface of the central substrate is marked with scale lines, and the center of the side end of the side support plate away from the central substrate is provided with a slot.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] When the device is in use, the limit card plate is buckled on the top of the supporting base plate to limit the screws. At the same time, the key can slide up and down inside the side support plate, so that the pointer can be moved to a specified height at the front end of the central base plate. The positioning bolt is then screwed until it is tightened with the central base plate, so that the screws can be limited to the specified height. In addition, the limit card plate is adsorbed and fitted with the supporting base plate to prevent the screws from falling off. At the same time, the positioning bolt cooperates with the central base plate to fix the screws at the specified height, completing the work of quickly moving the screws to the specified height for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of the restriction device of the present invention;

[0016] Figure 3 It is a schematic diagram of the structure of the displacement device of the present invention;

[0017] Figure 4 It is a schematic diagram of the structure of the supporting device of the present invention.

[0018] In the figure: 1-limiting device, 2-displacement device, 3-supporting device, 4-screw, 5-limiting card plate, 6-movable rod, 7-positioning bolt, 8-key, 9-extension bracket, 10-support base plate, 11-pointer, 12-rear plate, 13-side end support plate, 14-center base plate, 15-anti-slip pad. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-4 An embodiment of the present invention provides: a fastener for adjusting the docking height, comprising a supporting device 3, a displacement device 2 is slidably sleeved on the outer ring of the supporting device 3, limiting devices 1 are slidably inserted at both ends of the top of the displacement device 2, screws 4 are slidably inserted between the limiting device 1 and the displacement device 2, the displacement device 2 comprises a positioning bolt 7, a key 8, an extension bracket 9, a supporting base plate 10, a pointer 11 and a rear plate 12, the key 8 is symmetrically fixedly installed at the front end of the rear plate 12, the key 8 and the pointer 11 are fixedly installed at the opposite end of the extension bracket 9, and the pointer 11 is located in front of the key 8, the supporting base plate 10 is fixedly installed at the end of the extension bracket 9 away from the key 8, and the positioning bolt 7 is threadedly inserted at the rear end center of the rear plate 12.

[0021] The limiting device 1 includes a limiting clamping plate 5 and a movable rod 6 . The movable rod 6 is symmetrically fixedly mounted on the bottom end of the limiting clamping plate 5 , so that the movable rod 6 can be inserted into the top end of the supporting base plate 10 .

[0022] The supporting device 3 includes side support plates 13, a central base plate 14 and an anti-skid pad 15. The side support plates 13 are fixedly mounted on both sides of the central base plate 14, and the central base plate 14 is fixedly mounted on the top of the anti-skid pad 15 to support the temporary placement of the central base plate 14.

[0023] The card key 8 is slidably inserted into the inside of the side support plate 13 , and the movable rod 6 is slidably inserted into the top end of the support bottom plate 10 , so that the limiting card plate 5 is in contact with the support bottom plate 10 .

[0024] Arc grooves are provided at the top center of the supporting base plate 10 and the bottom center of the limiting clamping plate 5 . The limiting clamping plate 5 is made of magnets, which facilitates the installation of the limiting clamping plate 5 on the top of the supporting base plate 10 .

[0025] The top of the support base plate 10 is symmetrically provided with circular holes, the front end surface of the central substrate 14 is marked with scale lines, and the side end center of the side support plate 13 away from the central substrate 14 is provided with a slot to ensure that the extension bracket 9 moves up and down along a straight line as a whole.

[0026] Working principle: When in use, first move the central base plate 14 to the specified position, and contact the ground with the anti-slip pad 15 so that the device can be temporarily placed. Then, the limit card plate 5 can be moved upward and pulled until the limit card plate 5 is out of contact with the support base plate 10, and then the screw 4 is moved to the arc groove at the center of the top of the support base plate 10, and then the limit card plate 5 is moved to the top of the support base plate 10 again, and the limit card plate 5 is adsorbed and fitted with the support base plate 10, so that the screw 4 can be limited to the limit card plate 5 and the support base plate 10. At the same time, when the limit card plate 5 is adapted to the supporting bottom plate 10, the movable rod 6 is slidably inserted into the circular hole inside the top of the supporting bottom plate 10, so that the limit card plate 5 can be supported and placed on the top of the supporting bottom plate 10. Subsequently, when the two screws 4 are restricted, the extension bracket 9 can be lifted upward, so that the screws 4 can be driven to move upward synchronously. When the extension bracket 9 is displaced, the pointer 11 can be driven to move on the scale line on the front end surface of the central substrate 14, so that the user can accurately control the extension bracket 9. The displacement of the bracket 9 is achieved by sliding the card key 8 in the card slot inside the side end of the side support plate 13 away from the center base plate 14, so that the extended bracket 9 can be ensured to move in a straight line to avoid the extended bracket 9 from being skewed during displacement. Subsequently, when the screw 4 moves to the specified height, the positioning bolt 7 can be screwed and rotated to be fastened with the rear end of the center base plate 14, so that the extended bracket 9 can be temporarily limited to the specified height. Subsequently, the user can operate the tool to screw and rotate the screw 4 so that the screw 4 can be installed at the specified height. At the same time, when the screw 4 has not been completely screwed to the limit position, the limiting card plate 5 can be pulled upward so that the limiting card plate 5 can be disengaged from the support base plate 10, and then the positioning bolt 7 is screwed in the opposite direction so that the positioning bolt 7 can be disengaged from the center base plate 14. At this time, the extended bracket 9 will slide downward and fall, causing the support base plate 10 to be disengaged from the screw 4. Subsequently, the device can be moved out as a whole, and then the external tool can be operated to completely screw the screw 4 to the limit position to complete the work of installing the screw 4 to the specified height.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fastener for adjusting the docking height, comprising a supporting device (3), a displacement device (2) slidably sleeved on the outer ring of the supporting device (3), a limiting device (1) slidably inserted at both ends of the top of the displacement device (2), and a screw (4) slidably inserted between the limiting device (1) and the displacement device (2), characterized in that: The displacement device (2) comprises a positioning bolt (7), a key (8), an extension bracket (9), a support base plate (10), a pointer (11) and a rear plate (12); the key (8) is symmetrically fixedly mounted on the front end of the rear plate (12); the key (8) and the pointer (11) are fixedly mounted on opposite ends of the extension bracket (9), and the pointer (11) is located in front of the key (8); the support base plate (10) is fixedly mounted on the end of the extension bracket (9) away from the key (8); and the positioning bolt (7) is threadedly inserted in the rear end center of the rear plate (12).

2. A fastener for facilitating adjustment of docking height according to claim 1, characterized in that: The limiting device (1) comprises a limiting clamping plate (5) and a movable rod (6), wherein the movable rod (6) is symmetrically fixedly mounted on the bottom end of the limiting clamping plate (5).

3. A fastener for adjusting the docking height according to claim 2, characterized in that: The support device (3) comprises a side support plate (13), a central base plate (14) and an anti-skid pad (15); the side support plates (13) are fixedly mounted on both sides of the central base plate (14); and the central base plate (14) is fixedly mounted on the top of the anti-skid pad (15).

4. A fastener for adjusting the docking height according to claim 3, characterized in that: The latch key (8) is slidably inserted into the interior of the side end support plate (13), and the movable rod (6) is slidably inserted into the interior of the top end of the support bottom plate (10).

5. A fastener for adjusting the docking height according to claim 4, characterized in that: Arc grooves are provided at the top center of the supporting bottom plate (10) and the bottom center of the limiting clamping plate (5), and the limiting clamping plate (5) is made of a magnet.

6. A fastener for adjusting the butt joint height according to claim 5, characterized in that: The top of the supporting bottom plate (10) is symmetrically provided with circular holes, the front end surface of the central substrate (14) is marked with scale lines, and the center of the side end of the side support plate (13) away from the central substrate (14) is provided with a slot.

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