A combination anti-loosening screw

Abstract

The utility model provides a combined anti-loosening screw, which relates to the technical field of automobile parts, in order to solve the problems of single fixing effect, the need to improve the anti-falling effect of the device, the screw is easy to accidentally loosen and fall off under long-term vibration, and the device is not easy to quickly adjust the limit spacing of the device according to the required fixed spacing, comprising a main rod; the bottom of the main rod is fixedly connected with a screw rod, the driving gears on the rotating rod are respectively meshed and transmission connected with the incomplete gears at the bottom of the inner support rod, a group of inner moving rods are slidably installed in the main rod, and a group of pull rods are fixedly installed at the bottom of the inner moving rod; the utility model effectively improves the anti-falling effect of the device by cooperating with the second elastic member of the inner support rod, and the positioning blocks on both sides of the external sleeve are respectively plugged and installed on the positioning grooves on both sides of the screw rod, so that the spacing between the external sleeve and the outer support plate on the inner support rod can be quickly adjusted according to the required fixed spacing, so that the device has better adjustability.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, and more specifically, particularly relates to a combined anti-loosening screw. Background Art

[0002] Many parts of a car need to be fixed to the car frame with screws and nuts. Since vibration is inevitable during the driving of the car, these screws are prone to loosening and causing parts to loosen as the car runs for a long time, which in turn causes the car to produce various abnormal noises, greatly affecting the experience of the driver and passengers. When using existing similar screws, the fixing effect is single, and the anti-falling effect of the device needs to be improved. The screws are prone to accidentally loosening and falling off under long-term vibration, and the device is not easy to quickly adjust the limit spacing of the device according to the required fixed spacing. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a combined anti-loosening screw to solve the problems that the existing similar fixing effect is single, the anti-falling effect of the device needs to be improved, the screws are prone to accidentally loosening and falling off under long-term vibration, and the device is not easy to quickly adjust the limit spacing of the device according to the required fixed spacing.

[0004] The utility model combined anti-loosening screw is achieved by the following specific technical means:

[0005] A combined anti-loosening screw comprises a main rod;

[0006] The bottom of the main rod is fixedly connected with a screw rod, and both side ends of the screw rod are equidistantly provided with positioning grooves, and both side ends of the screw rod are respectively provided with a group of placement grooves, and a group of inner support rods are rotatably installed in the placement grooves, and a group of incomplete gears are fixedly installed at the bottom of the inner support rod, and a group of support plates are fixedly installed at the outer end of the inner support rod. A group of rotating rods are also rotatably installed at the inner two ends of the screw, and a group of driving gears are fixedly installed on the rotating rod, and a group of external sleeves are also slidably installed on the outer end of the screw, and a group of positioning blocks are also slidably installed on the two sides of the external sleeve, and the positioning blocks on both sides of the external sleeve are respectively plugged and installed on the positioning grooves on both sides of the screw, and the inner bottom of the positioning block is an italic structure, and the driving gears on the rotating rods are respectively meshed and transmission-connected with the incomplete gears at the bottom of the inner support rod, and a group of inner moving rods are slidably installed in the main rod, and a group of pull rods are fixedly installed at the bottom of the inner moving rod.

[0007] In at least some embodiments, a group of connecting rods are fixedly mounted on the outer end of the sliding column, and a group of first elastic members are sleeved and mounted on the connecting rods, and the inner ends of the first elastic members are in contact with the outer end surface of the sliding column on the positioning block.

[0008] In at least some embodiments, a group of supporting rods are fixedly connected to the top of the sliding block, and a group of second elastic members are sleeved and installed on the supporting rods, and the bottom of the second elastic members contacts the top surface of the sliding block on the inner moving rod.

[0009] In at least some embodiments, two sets of guide grooves are respectively provided at the front and rear ends of the main rod, a set of guide blocks are respectively fixedly connected to the inner ends of both sides of the external sleeve, and the guide blocks at the inner ends of both sides of the external sleeve are respectively slidably installed on the guide grooves at the front and rear ends of the main rod.

[0010] In at least some embodiments, a group of racks are fixedly connected to both side ends of the pull rod, and the racks at both side ends of the pull rod are meshed and transmission-connected with driving gears on the rotating rod.

[0011] In at least some embodiments, a group of connecting grooves are respectively opened inside the two ends of the external sleeve, a group of sliding columns are fixedly installed on the outer end of the positioning block, and the sliding columns at the outer end of the positioning block are slidably installed on the connecting grooves inside the external sleeve.

[0012] In at least some embodiments, a group of inner slide grooves are opened at the top of the main rod, a group of sliding blocks are fixedly installed on the inner moving rod, and the sliding blocks on the inner moving rod are slidably installed in the inner slide grooves opened at the top of the main rod.

[0013] Compared with the prior art, the combined anti-loosening screw of the utility model has the following beneficial effects:

[0014] 1. The setting of the inner moving rod is conducive to pulling the inner moving rod upwards. Under the action of the driving gear, the two groups of inner support rods rotate inwards around the rotating shafts thereon at the same time. When the inner moving rod is loosened, under the action of the second elastic member on the support rod, the inner moving rod moves downward, and the two groups of inner support rods rotate outwards around the rotating shafts thereon at the same time to form an inverted eight-shaped structure. The support plate at the outer end of the inner support rod cooperates with the external sleeve, which effectively improves the anti-falling effect of the device and further avoids the problem of accidental loosening and falling of the device under long-term vibration.

[0015] 2. The setting of the positioning block is conducive to pressing the external sleeve downward. The inner bottom of the positioning block is an italic structure. The two groups of positioning blocks move outward at the same time. When the external sleeve moves to the required fixed distance between the external support plate on the inner support rod, under the action of the first elastic member on the connecting rod, the two groups of positioning blocks move inward at the same time. The positioning blocks on both sides of the external sleeve are respectively inserted and installed on the positioning grooves on both sides of the screw rod, so that the distance between the external sleeve and the outer support plate on the inner support rod can be quickly adjusted according to the required fixed distance, so that the device has better adjustability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front axial view schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of disassembly and assembly of the external sleeve of the utility model.

[0018] Figure 3 It is a top schematic diagram of the external sleeve of the utility model.

[0019] Figure 4 It is a cross-sectional schematic diagram of the external sleeve of the utility model.

[0020] Figure 5 It is an internal schematic diagram of the main rod of the utility model.

[0021] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0022] 1. Main rod; 101. Screw rod; 102. Guide groove; 103. Positioning groove; 104. Inner slide groove; 105. Placement groove; 106. Inner support rod; 1061. Incomplete gear; 1062. Support plate; 107. Rotating rod; 1071. Driving gear; 2. External sleeve; 201. Guide block; 202. Connecting groove; 203. Positioning block; 2031. Sliding column; 2032. Connecting rod; 2033. First elastic member; 3. Inner movable rod; 301. Support rod; 3011. Sliding block; 3012. Second elastic member; 302. Pull rod; 3021. Rack. DETAILED DESCRIPTION

[0023] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0024] As attached Figure 1 To Attachment Figure 5 As shown:

[0025] Embodiment 1: The utility model provides a combined anti-loosening screw, comprising a main rod 1;

[0026] The bottom of the main rod 1 is fixedly connected with a screw rod 101, and positioning grooves 103 are equidistantly provided at both ends of the screw rod 101. A group of placement grooves 105 are provided at both ends of the screw rod 101, and a group of inner support rods 106 are rotatably installed in the placement grooves 105. A group of incomplete gears 1061 are fixedly installed at the bottom of the inner support rods 106, and a group of support plates 1062 are fixedly installed at the outer ends of the inner support rods 106. A group of rotating rods 107 are rotatably installed at both ends of the screw rod 101, and a group of driving gears 1071 are fixedly installed on the rotating rods 107. A group of external sleeves 2 are also slidably installed on the outer end of the screw 101, and a group of positioning blocks 203 are also slidably installed inside the two sides of the external sleeve 2, and the positioning blocks 203 on both sides of the external sleeve 2 are respectively inserted and installed on the positioning grooves 103 at the two side ends of the screw 101, and the inner bottom of the positioning block 203 is an italic structure. The driving gear 1071 on the rotating rod 107 is respectively meshed and connected with the incomplete gear 1061 at the bottom of the inner support rod 106. A group of inner moving rods 3 are slidably installed in the main rod 1, and a group of pull rods 302 are fixedly installed at the bottom of the inner moving rod 3.

[0027] like Figure 5 As shown, a group of inner slide grooves 104 are opened at the top of the main rod 1, and a group of sliding blocks 3011 are fixedly installed on the inner moving rod 3. The sliding blocks 3011 on the inner moving rod 3 are slidably installed in the inner slide grooves 104 opened at the top of the main rod 1. A group of supporting rods 301 are also fixedly connected to the top of the sliding blocks 3011, and a group of second elastic members 3012 are sleeved and installed on the supporting rods 301, and the bottom of the second elastic members 3012 is in contact with the top surface of the sliding blocks 3011 on the inner moving rod 3, and a group of racks 3021 are fixedly connected to the two side ends of the pull rod 302, and the racks 3021 at the two side ends of the pull rod 302 are respectively meshed and transmission-connected with the driving gears 1071 on the rotating rod 107; specifically, the sliding blocks 3011 on the inner moving rod 3 are slidably installed in the inner slide grooves 104 opened at the top of the main rod 1 In the process, the driving gear 1071 on the rotating rod 107 is respectively meshed and connected with the incomplete gear 1061 at the bottom of the inner support rod 106, and the racks 3021 at the two side ends of the pull rod 302 are respectively meshed and connected with the driving gears 1071 on the rotating rod 107, and the inner moving rod 3 is pulled upward. Under the action of the driving gear 1071, the two groups of inner support rods 106 rotate inward around the rotating shaft thereon at the same time. When the inner moving rod 3 is released, under the action of the second elastic member 3012 on the support rod 301, the inner moving rod 3 moves downward, and the two groups of inner support rods 106 rotate outward around the rotating shaft thereon at the same time to form an inverted eight-shaped structure. The support plate 1062 at the outer end of the inner support rod 106 cooperates with the external sleeve 2, which effectively improves the anti-falling effect of the device, and further avoids the problem of accidental loosening and falling of the device under long-term vibration.

[0028] Embodiment 2: Based on Embodiment 1, Figures 2 to 4As shown, a group of connecting grooves 202 are respectively opened at the two ends of the external sleeve 2, a group of sliding columns 2031 are fixedly installed on the outer end of the positioning block 203, and the sliding columns 2031 at the outer end of the positioning block 203 are slidably installed on the connecting grooves 202 inside the external sleeve 2, and two groups of guide grooves 102 are respectively opened at the front and rear ends of the main rod 1, and a group of guide blocks 201 are respectively fixedly connected to the inner ends of the two sides of the external sleeve 2, and the guide blocks 201 at the inner ends of the two sides of the external sleeve 2 are respectively slidably installed on the guide grooves 102 at the front and rear ends of the main rod 1, a group of connecting rods 2032 are fixedly installed on the outer ends of the sliding columns 2031, and a group of first elastic members 2033 are sleeved and installed on the connecting rods 2032, and the inner ends of the first elastic members 2033 are in contact with the outer end surfaces of the sliding columns 2031 on the positioning block 203; the specific function is that the sliding column 2031 at the outer end of the positioning block 203 The column 2031 is slidably installed on the connecting groove 202 inside the external sleeve 2, and the guide blocks 201 on the inner ends of both sides of the external sleeve 2 are respectively slidably installed on the guide grooves 102 at the front and rear ends of the main rod 1, and the external sleeve 2 is pressed downward. The inner bottom of the positioning block 203 is an italic structure, and the two groups of positioning blocks 203 move outward at the same time. When the external sleeve 2 moves to the required fixed distance between the outer support plate 1062 on the inner support rod 106, under the action of the first elastic member 2033 on the connecting rod 2032, the two groups of positioning blocks 203 move inward at the same time, and the positioning blocks 203 on both sides of the external sleeve 2 are respectively plugged and installed on the positioning grooves 103 at the two side ends of the screw rod 101, so that the distance between the external sleeve 2 and the outer support plate 1062 on the inner support rod 106 can be quickly adjusted according to the required fixed distance, so that the device has better adjustability.

[0029] The specific usage and function of this embodiment are as follows:

[0030] When the utility model is in use, the guide blocks 201 at the inner ends of both sides of the external sleeve 2 are slidably installed on the guide grooves 102 at the front and rear ends of the main rod 1, and the external sleeve 2 is pressed downward. The inner bottom of the positioning block 203 is an italic structure, and the two groups of positioning blocks 203 move outward at the same time. When the external sleeve 2 moves to the required fixed distance with the outer support plate 1062 on the inner support rod 106, under the action of the first elastic member 2033 on the connecting rod 2032, the two groups of positioning blocks 203 move inward at the same time, and the positioning blocks 203 on both sides of the external sleeve 2 are respectively plugged and installed on the positioning grooves 103 at the two side ends of the screw rod 101, so that the external sleeve 2 and the inner support rod 106 are fixed. The spacing of the outer support plates 1062 can be quickly adjusted according to the required fixed spacing, so that the device has better adjustability; pull the inner moving rod 3 upward, and under the action of the driving gear 1071, the two groups of inner support rods 106 rotate inward around the rotating shaft thereon at the same time. When the inner moving rod 3 is released, under the action of the second elastic member 3012 on the support rod 301, the inner moving rod 3 moves downward, and the two groups of inner support rods 106 rotate outward around the rotating shaft thereon at the same time to form an inverted eight-shaped structure. The support plate 1062 at the outer end of the inner support rod 106 cooperates with the external sleeve 2, which effectively improves the anti-falling effect of the device and further avoids the problem of accidental loosening and falling of the device under long-term vibration.

[0031] In this article, there are a few points to note:

[0032] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0033] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0034] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A combined anti-loosening screw, comprising a main rod (1); The bottom of the main rod (1) is fixedly connected with a screw rod (101), which is characterized in that: The two side ends of the screw rod (101) are respectively provided with positioning grooves (103) at equal intervals, and the two side ends of the screw rod (101) are respectively provided with a group of placement grooves (105), and a group of inner support rods (106) are respectively rotatably installed in the placement grooves (105), and a group of incomplete gears (1061) are fixedly installed at the bottom of the inner support rods (106), and a group of support plates (1062) are fixedly installed at the outer ends of the inner support rods (106), and a group of rotating rods (107) are also rotatably installed at the inner ends of the screw rod (101), and a group of driving gears (1071) are fixedly installed on the rotating rods (107), and the outer ends of the screw rods (101) are also A group of external sleeves (2) are slidably installed, and a group of positioning blocks (203) are slidably installed inside the two sides of the external sleeve (2), and the positioning blocks (203) on both sides of the external sleeve (2) are respectively plugged and installed on the positioning grooves (103) at the two side ends of the screw rod (101), and the inner bottom of the positioning block (203) is an italic structure. The driving gear (1071) on the rotating rod (107) is respectively meshed and connected with the incomplete gear (1061) at the bottom of the inner support rod (106). A group of inner moving rods (3) are slidably installed in the main rod (1), and a group of pull rods (302) are fixedly installed at the bottom of the inner moving rod (3).

2. A combined anti-loosening screw according to claim 1, characterized in that: A group of inner slide grooves (104) are provided at the top of the main rod (1), a group of sliding blocks (3011) are fixedly installed on the inner moving rod (3), and the sliding blocks (3011) on the inner moving rod (3) are slidably installed in the inner slide grooves (104) provided at the top of the main rod (1).

3. A combined anti-loosening screw according to claim 2, characterized in that: The top of the sliding block (3011) is also fixedly connected to a group of supporting rods (301), and a group of second elastic members (3012) are sleeved and installed on the supporting rods (301), and the bottom of the second elastic members (3012) is in contact with the top surface of the sliding block (3011) on the inner moving rod (3).

4. The combined anti-loosening screw according to claim 1, characterized in that: A set of racks (3021) are fixedly connected to both side ends of the pull rod (302), and the racks (3021) at both side ends of the pull rod (302) are meshed and transmission-connected with the driving gears (1071) on the rotating rod (107).

5. The combined anti-loosening screw according to claim 1, characterized in that: A group of connecting grooves (202) are respectively provided inside the two ends of the external sleeve (2), a group of sliding columns (2031) are fixedly installed on the outer end of the positioning block (203), and the sliding columns (2031) on the outer end of the positioning block (203) are slidably installed on the connecting grooves (202) inside the external sleeve (2).

6. The combined anti-loosening screw according to claim 1, characterized in that: The front and rear ends of the main rod (1) are respectively provided with two groups of guide grooves (102); the inner ends of both sides of the external sleeve (2) are respectively fixedly connected with a group of guide blocks (201); and the guide blocks (201) at the inner ends of both sides of the external sleeve (2) are respectively slidably mounted on the guide grooves (102) at the front and rear ends of the main rod (1).

7. The combined anti-loosening screw according to claim 5, characterized in that: A group of connecting rods (2032) are fixedly mounted on the outer end of the sliding column (2031), and a group of first elastic members (2033) are sleeved and mounted on the connecting rods (2032), and the inner ends of the first elastic members (2033) are in contact with the outer end surface of the sliding column (2031) on the positioning block (203).

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