Anti-loosening screw

Abstract

The anti-loosening screw comprises a screw rod, a conical head is fixedly connected to the bottom of the screw rod, a mounting plate is fixedly connected to the top of the screw rod, a mounting cap is fixedly connected to the top of the mounting plate, an anti-loosening mechanism is arranged in the screw rod, and containing grooves are formed in the front side and the rear side of the mounting plate. An auxiliary mechanism is arranged in the containing groove, the anti-disengaging mechanism comprises a lead screw and a sliding rod, the outer side of the lead screw is in threaded connection with the interior of the mounting plate, the two ends of the sliding rod are fixedly connected with the inner wall of the screw rod respectively, and the bottom of the lead screw is rotationally connected with a connecting block. According to the anti-loosening screw, through the arranged anti-loosening mechanism, the phenomenon that the bolt body is loosened when being shaken by external force can be prevented, the fixing effect on a connected object is enhanced, the stability and durability of connection are ensured, and therefore the service life of the screw and the service life of a whole connecting device are greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw technical field, concretely is a kind of anti-loosening screw. BACKGROUND

[0002] Screw (also known as bolt) is a kind of fastener with thread, usually used to connect two or more objects together, the basic structure of screw includes screw rod (threaded shaft) and a head, head is usually used to exert rotating force (for example with screwdriver or wrench), the working principle of screw is based on the friction of thread, by rotating screw, thread is embedded into nut or screw hole matched with it, to realize fastening.

[0003] The existing screw is installed and fixed, in the case where external environment is complex and changeable, or under the vibration generated by equipment operation, it is easy to cause screw to be affected by vibration, reverse loosening phenomenon appears, not only can reduce its due fixed effect, but also can further cause security risk.

[0004] Therefore, the utility model provides a kind of anti-loosening screw to solve above-mentioned problem. UTILITY MODEL CONTENT

[0005] In view of the deficiency of prior art, the utility model provides a kind of anti-loosening screw, solve the above-mentioned problem that vibration generated under daily environment, or under the vibration generated by equipment operation, it is easy to cause screw to be affected by vibration, loose phenomenon appears.

[0006] To realize above-mentioned purpose, the utility model is realized by following technical scheme: a kind of anti-loosening screw, including screw rod, the bottom of screw rod is fixedly connected with taper head, the top of screw rod is fixedly connected with mounting plate, the top of mounting plate is fixedly connected with mounting cap, the inside of screw rod is provided with anti-loosening mechanism, the front and back sides of mounting plate are both provided with placement groove, the inside of placement groove is provided with auxiliary mechanism;

[0007] The anti-loosening mechanism includes lead screw and slide bar, the outside of lead screw is threadedly connected in the inside of mounting plate, the both ends of slide bar are fixedly connected with the inner wall of screw rod, the bottom of lead screw is rotatably connected with connecting block, the outside of slide bar is slidably connected with two sliding blocks, the bottom of two sliding blocks is fixedly connected with L-shaped clamping rod, the sliding block and the connecting block are provided with link rod.

[0008] Preferably, the outside of lead screw is threadedly connected in the inside of mounting cap.

[0009] Preferably, the outside of L-shaped clamping rod is slidably connected in the inside of screw rod.

[0010] Preferably, one end of link rod is rotatably connected in the top of sliding block, the other end of link rod is rotatably connected in the outside of connecting block.

[0011] Preferably, the top of the lead screw is fixedly connected with a handle.

[0012] Preferably, the auxiliary mechanism comprises a fixed shaft, two ends of the fixed shaft are fixedly connected with inner walls of the placing groove respectively, a square rod is rotatably connected to a middle portion of the fixed shaft, and torsional springs are sleeved on upper and lower ends of the fixed shaft.

[0013] Preferably, one end of the torsional spring is fixedly connected to the inner wall of the placing groove, and the other end of the torsional spring is fixedly connected to the outer side of the square rod.

[0014] Preferably, a pushing block is fixedly connected to the outer side of the square rod away from one end of the fixed shaft.

[0015] Beneficial effects

[0016] Compared with the prior art, the utility model provides a kind of anti-loose screw, which has the following beneficial effects:

[0017] (1), the anti-loose screw, by setting the anti-loose mechanism, the phenomenon of loosening of bolt body when being shaken by external force can be prevented, the fixing effect of the connected object is enhanced, the stability and durability of connection are ensured, so that the service life of screw itself and the whole connecting device is greatly prolonged.

[0018] (2), the anti-loose screw, by setting the auxiliary mechanism, under the condition that there is no specific tool, staff can quickly disassemble bolt, maintain and replace the component needing repair, improve the practicability of device. DRAWINGS

[0019] Figure 1 is the external structure perspective drawing of the utility model;

[0020] Figure 2 is the internal structure side view of the placing groove of the utility model;

[0021] Figure 3 is the internal structure front view of the anti-loose mechanism of the utility model;

[0022] Figure 4 is the utility model Figure 2 A enlarged schematic view.

[0023] In the drawing: 1, screw rod;2, cone head;3, mounting plate;4, mounting cap;5, anti-loose mechanism;51, lead screw;52, sliding rod;53, connecting block;54, sliding block;55, L-shaped clamping rod;56, link rod;57, handle;6, placing groove;7, auxiliary mechanism;71, fixed shaft;72, square rod;73, torsional spring;74, pushing block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Embodiment one:

[0026] Please refer to Figures 1-3 A kind of anti-loose screw, including screw rod 1, the bottom of screw rod 1 is fixedly connected with taper head 2, the top of screw rod 1 is fixedly connected with mounting plate 3, the top of mounting plate 3 is fixedly connected with mounting cap 4, the inside of screw rod 1 is provided with anti-loose mechanism 5, the front and rear sides of mounting plate 3 are both provided with placing groove 6, and the inside of placing groove 6 is provided with auxiliary mechanism 7;

[0027] Anti-loose mechanism 5 includes lead screw 51 and slide bar 52, lead screw 51 is screw-connected in the inside of mounting plate 3, slide bar 52 two ends are fixedly connected with the inner wall of screw rod 1, the bottom of lead screw 51 is rotatably connected with connecting block 53, two slide blocks 54 are slidably connected on the outside of slide bar 52, the bottom of two slide blocks 54 is fixedly connected with L-shaped clamping rod 55, and the interface rod 56 is arranged between slide block 54 and connecting block 53.

[0028] The purpose of this setting is that, when in use, the mounting cap 4 is tightly clamped by spanner, and then the taper head 2 and the screw rod 1 are smoothly screwed into the inside of the object to be fixed. In order to prevent the bolt body from loosening when subjected to external force, the lead screw 51 is rotated to drive the connecting block 53 to move downward, the connecting block 53 moves to drive the interface rod 56 to rotate, the interface rod 56 rotates to drive the two slide blocks 54 to move synchronously but in opposite directions on the slide bar 52, and then drives the L-shaped clamping rod 55 to move until the L-shaped clamping rod 55 contacts the inner wall of the object to be fixed, so as to be fixed firmly, providing stable support for the screw, and effectively preventing loosening and falling off under the condition of strong external impact or long-term vibration, thereby greatly improving the reliability and safety of screw connection.

[0029] Preferably, the outside of the lead screw 51 is screw-connected in the inside of the mounting cap 4, and the purpose of this setting is that the lead screw 51 can drive the connecting block 53 to move.

[0030] Preferably, the outside of the L-shaped clamping rod 55 is slidably connected in the inside of the screw rod 1, and the purpose of this setting is that the L-shaped clamping rod 55 can move stably.

[0031] Preferably, the connecting rod 56 is rotatably connected to the top of the sliding block 54, and the other end of the connecting rod 56 is rotatably connected to the outside of the connecting block 53. The purpose of this arrangement is that the connecting rod 56 can transmit the movement of the connecting block 53 to the sliding block 54.

[0032] Preferably, the top of the lead screw 51 is fixedly connected with a handle 57. The purpose of this arrangement is that the handle 57 provides a holding point for the operator.

[0033] Embodiment two:

[0034] Please refer to Figure 2 and Figure 4 The embodiment provides a technical scheme on the basis of the embodiment one: the auxiliary mechanism 7 includes a fixed shaft 71, both ends of the fixed shaft 71 are fixedly connected with the inner wall of the placing groove 6, a square rod 72 is rotatably connected to the middle of the fixed shaft 71, and torsion springs 73 are sleeved on both ends of the fixed shaft 71.

[0035] The purpose of this arrangement is that when facing the task of disassembling the screw, the worker does not need to look for or wait for professional disassembling tools, but only needs to simply pull outwards the two knobs 74, so that the square rods 72 connected with the knobs 74 can flexibly rotate around the fixed shaft 71 and press the torsion springs 73. With the continuous rotation of the square rods 72, they gradually completely separate from the originally embedded placing groove 6. At this time, the user only needs to simply hold the two square rods 72, and can easily rotate the screw, thereby realizing that the worker can quickly disassemble the bolt without specific tools, greatly shortening the downtime, improving the availability and overall operation efficiency of the equipment.

[0036] Preferably, one end of the torsion spring 73 is fixedly connected to the inner wall of the placing groove 6, and the other end of the torsion spring 73 is fixedly connected to the outside of the square rod 72. The purpose of this arrangement is that the torsion spring 73 provides elastic force for the reset of the square rod 72.

[0037] Preferably, the knob 74 is fixedly connected to the outside of the square rod 72 away from the fixed shaft 71. The purpose of this arrangement is that the knob 74 makes it convenient for the user to take out the square rod 72 from the inside of the placing groove 6.

[0038] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0039] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An anti-loosening screw, comprising a screw rod (1), characterized in that: The bottom of the screw (1) is fixedly connected to a cone head (2), the top of the screw (1) is fixedly connected to a mounting plate (3), the top of the mounting plate (3) is fixedly connected to a mounting cap (4), the screw (1) is provided with an anti-detachment mechanism (5), the mounting plate (3) is provided with placement slots (6) on both the front and rear sides, and the placement slots (6) are provided with auxiliary mechanisms (7). The anti-detachment mechanism (5) includes a lead screw (51) and a slide rod (52). The lead screw (51) is threaded to the inside of the mounting plate (3) on the outside. The two ends of the slide rod (52) are fixedly connected to the inner wall of the screw (1) respectively. A connecting block (53) is rotatably connected to the bottom of the lead screw (51). Two sliders (54) are slidably connected to the outside of the slide rod (52). An L-shaped locking rod (55) is fixedly connected to the bottom of each slider (54). A connecting rod (56) is provided between the slider (54) and the connecting block (53).

2. The anti-loosening screw according to claim 1, characterized in that: The lead screw (51) is threaded on the outside and connected to the inside of the mounting cap (4).

3. The anti-loosening screw according to claim 1, characterized in that: The L-shaped lever (55) is slidably connected to the inside of the screw (1) on the outside.

4. The anti-loosening screw according to claim 1, characterized in that: One end of the connecting rod (56) is rotatably connected to the top of the slider (54), and the other end of the connecting rod (56) is rotatably connected to the outside of the connecting block (53).

5. The anti-loosening screw according to claim 1, characterized in that: A handle (57) is fixedly connected to the top of the lead screw (51).

6. The anti-loosening screw according to claim 1, characterized in that: The auxiliary mechanism (7) includes a fixed shaft (71), both ends of which are fixedly connected to the inner wall of the placement groove (6). A square rod (72) is rotatably connected to the middle of the fixed shaft (71), and torsion springs (73) are sleeved on both the upper and lower ends of the fixed shaft (71).

7. The anti-loosening screw according to claim 6, characterized in that: One end of the torsion spring (73) is fixedly connected to the inner wall of the placement groove (6), and the other end of the torsion spring (73) is fixedly connected to the outside of the square rod (72).

8. The anti-loosening screw according to claim 6, characterized in that: A lever (74) is fixedly connected to the outer end of the square rod (72) away from the fixed shaft (71).

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