Anti-bouncing well lid

Abstract

The utility model belongs to the technical field of well lids, and particularly relates to an anti-bounce well lid which comprises a well lid base, a protruding ring is fixedly connected to the inner side of the well lid base, a well lid body is placed at the upper end of the protruding ring and connected to the inner side of the well lid base in a sliding mode, a rotating shaft is installed in the well lid body through a bearing, and a cam is fixedly connected to the lower end of the rotating shaft. The two fixing plates are arranged at the bottom of the well lid body, the plug pins which stretch out and draw back through the springs are arranged in the fixing plates, one ends of the plug pins are inserted into the well lid base, the other ends of the plug pins are provided with the push plates, then the rotating shaft with the cam is installed in the well lid body through the bearing, and the cam is rotated through the rotating shaft, so that the well lid body is fixed. When the manhole cover body is rolled by an automobile, transverse thrust can be applied to the push plate to act on the plug pins, so that the plug pins are inserted into the inner wall of the manhole cover seat, the manhole cover body can be locked, the manhole cover body is prevented from shaking and jumping after being rolled by the automobile, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to an anti-bounce manhole cover. Background Art

[0002] Manhole covers are used to cover deep wells on municipal roads to prevent people or objects from falling. They include manhole covers and manhole cover bases, which are fixed to the wellheads by cement slurry. For example, the invention patent with announcement number CN112196070A discloses a municipal water well cover, including a cover body, which is a hollow cylinder with a hollow top, a top cover is engaged at the hollow top of the cover body, four symmetrical water inlet holes are opened on the top of the top cover, four inclined drain pipes are fixedly installed on the arc-shaped bottom of the cover body, and a collecting device is arranged in the cover body cavity; this patent improves the drainage efficiency of the cover body and the top cover to the sewer by preventing the blockage of water inlet holes and water outlet of drain pipes, limits and fixes the plastic bags collected in the cover body cavity with the power generated by the water flow discharged from the drain pipe, and then regularly clears the water inlet holes by the mechanical power generated by the drainage of the drain pipe, and finally clears the drainage of the drain pipe by the mechanical vibration force generated when the cover body is damped by the buffer device, thereby improving the water intake and drainage efficiency of the overall device, and has strong practicality and creativity.

[0003] Most of the existing manhole covers are directly placed in the manhole cover seat, and the vibration of the car after rolling over is easy to cause the manhole cover to bounce up, which is dangerous. Therefore, it is necessary to improve. Utility Model Content

[0004] The utility model aims to provide an anti-bounce manhole cover, which solves the problem that most of the existing manhole covers are directly placed in the manhole cover seats, and the manhole covers are easily vibrated after being rolled over by cars, causing the manhole covers to bounce up, which poses a certain danger.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bounce-proof manhole cover, comprising a manhole cover seat, a convex ring is fixedly connected to the inner side of the manhole cover seat, a manhole cover body is placed on the upper end of the convex ring, and the manhole cover body is slidably connected to the inner side of the manhole cover seat, a rotating shaft is installed inside the manhole cover body through a bearing, a cam is fixedly connected to the lower end of the rotating shaft, two symmetrically distributed fixing plates are fixedly connected to the bottom of the manhole cover body, each of the fixing plates is slidably connected to a pin, one end of the pin is plugged into the manhole cover seat, the other end of the pin is fixedly connected to a push plate, and the push plate contacts the cam, a spring is sleeved on the outer side of the pin, and a knob is fixedly connected to the upper end of the rotating shaft.

[0006] Preferably, two positioning blocks are fixedly connected to the side of the manhole cover body, and the positioning blocks are slidably connected to the manhole cover seat. The positioning blocks can be arranged to position the manhole cover body when it is placed in the manhole cover seat.

[0007] Preferably, one end of the spring 1 is fixedly connected to the fixed plate, and the other end of the spring 1 is fixedly connected to the push plate. By setting the spring 1, the elastic force can act on the pin through the push plate.

[0008] Preferably, a corrugated sleeve is fixedly connected to the push plate at one side away from the cam and located outside the spring 1, and the corrugated sleeve is fixedly connected to the fixed plate. The arrangement of the corrugated sleeve has a protective effect on the spring 1.

[0009] Preferably, a guide rod is fixedly connected to the inside of the manhole cover body, a slider is slidably sleeved on the outside of the guide rod, and the slider is slidably connected to the manhole cover body, a second spring is sleeved on the outside of the guide rod and located on the right side of the slider, one end of the second spring is fixedly connected to the slider, and the other end of the second spring is fixedly connected to the inner surface of the manhole cover body, a locking pin is fixedly connected to the side of the slider close to the knob, and the locking pin is plugged into the knob. The elastic force of the second spring acts on the slider, so that the locking pin on the slider is inserted into the knob, which has the effect of preventing the knob from loosening.

[0010] Preferably, a rubber plug is slidably connected inside the manhole cover body and above the knob, the rubber plug contacts the knob, a positioning bead is fixedly connected to the bottom of the rubber plug, and the positioning bead is engaged with the knob. By setting the rubber plug, the position of the knob can be protected.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model arranges two fixing plates at the bottom of the manhole cover body, and a pin which is retracted and extended by a spring is arranged inside each fixing plate, one end of the pin is inserted into the manhole cover seat, and the other end is provided with a push plate, and then a rotating shaft with a cam is installed inside the manhole cover body with a bearing, and the cam is rotated by the rotating shaft, so that the push plate can be subjected to a lateral thrust, thereby acting on the pin, so that it is inserted into the inner wall of the manhole cover seat, so that the manhole cover body can be locked, thereby preventing the manhole cover body from jumping up due to vibration after being run over by a car, thereby improving safety.

[0013] 2. The utility model provides a slider which is retracted and extended by a spring in the body of the manhole cover, and a locking pin is provided on one side of the slider. The locking pin is inserted into the knob on the rotating shaft under the elastic force of the spring. In this way, the cam can be prevented from rotating by locking the knob, thereby ensuring the stability of the nail and further ensuring the stability of the manhole cover body after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A front cross-sectional view of

[0016] Figure 3 For the utility model Figure 2 A magnified view of the structure of part A;

[0017] Figure 4 For the utility model Figure 2 3D diagram of the cam structure.

[0018] In the figure: 1. manhole cover seat; 2. convex ring; 3. manhole cover body; 4. positioning block; 5. rotating shaft; 6. cam; 7. fixing plate; 8. pin; 9. push plate; 10. spring 1; 11. bellows sleeve; 12. knob; 13. guide rod; 14. slider; 15. locking pin; 17. spring 2; 18. rubber plug; 19. positioning bead. DETAILED DESCRIPTION

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

[0020] See also Figure 1 , Figure 2 A bounce-proof manhole cover includes a manhole cover seat 1, a convex ring 2 is fixedly connected to the inner side of the manhole cover seat 1, a manhole cover body 3 is placed on the upper end of the convex ring 2, and the manhole cover body 3 is slidably connected to the inner side of the manhole cover seat 1, and two positioning blocks 4 are fixedly connected to the side of the manhole cover body 3, and the positioning blocks 4 are slidably connected to the manhole cover seat 1. The positioning blocks 4 are arranged to position the manhole cover body 3 in the manhole cover seat 1.

[0021] See also Figure 2 , Figure 3 , Figure 4, a rotating shaft 5 is installed inside the manhole cover body 3 through a bearing, a cam 6 is fixedly connected to the lower end of the rotating shaft 5, two symmetrically distributed fixing plates 7 are fixedly connected to the bottom of the manhole cover body 3, a pin 8 is slidably connected inside each fixing plate 7, one end of the pin 8 is plugged into the manhole cover seat 1, and the other end of the pin 8 is fixedly connected to a push plate 9, and the push plate 9 is in contact with the cam 6, and a spring 10 is sleeved on the outer side of the pin 8, one end of the spring 10 is fixedly connected to the fixing plate 7, and the other end of the spring 10 is fixedly connected to the push plate 9. Through the setting of the spring 10, the elastic force can be applied to the pin 8 through the push plate 9, and the push plate 9 is fixedly connected to the side away from the cam 6 and located on the outer side of the spring 10 with a corrugated sleeve 11, and the corrugated sleeve 11 is fixedly connected to the fixing plate 7. The setting of the corrugated sleeve 11 has a protective effect on the spring 10.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , the upper end of the rotating shaft 5 is fixedly connected with a knob 12. A guide rod 13 is fixedly connected inside the manhole cover body 3, and a slider 14 is slidably sleeved on the outer side of the guide rod 13, and the slider 14 is slidably connected to the manhole cover body 3. A spring 2 17 is sleeved on the outer side of the guide rod 13 and on the right side of the slider 14, one end of the spring 2 17 is fixedly connected to the slider 14, and the other end of the spring 2 17 is fixedly connected to the inner surface of the manhole cover body 3. A locking pin 15 is fixedly connected to the side of the slider 14 close to the knob 12, and the locking pin 15 is plugged into the knob 12. The elastic force of the spring 2 17 acts on the slider 14, so that the locking pin 15 on the slider 14 is inserted into the knob 12, which has the effect of preventing the knob 12 from loosening. A rubber plug 18 is slidably connected inside the manhole cover body 3 and located above the knob 12, and the rubber plug 18 contacts the knob 12. A positioning bead 19 is fixedly connected to the bottom of the rubber plug 18, and the positioning bead 19 is engaged with the knob 12. By setting the rubber plug 18, the position of the knob 12 can be protected.

[0023] The specific implementation process of the utility model is as follows: when in use, first put the manhole cover body 3 into the manhole cover seat 1, and position it through the positioning block 4. At this time, the manhole cover body 3 is supported by the convex ring 2 on the inner side of the manhole cover seat 1, and then the slider 14 is pulled horizontally to disengage the locking pin 15 on the slider 14 from the knob 12, and then the rotating shaft 5 is rotated by the knob 12, and the rotating shaft 5 drives the cam 6 to rotate. During the rotation of the cam 6, a lateral thrust can be given to the push plates 9 on both sides thereof, and then the push plates 9 drive the pins 8 to move horizontally, and the pins 8 are inserted. The locking pin 15 on the slider 14 is inserted into the inner wall of the manhole cover seat 1, so that the manhole cover body 3 can be locked, thereby preventing the manhole cover body 3 from jumping up due to the vibration after being run over by the car, thereby improving safety. The slider 14 is then released, and the slider 14 is reset under the elastic force of the spring 17, and the locking pin 15 on the slider 14 is inserted into the knob 12 to lock the knob 12, which can prevent the cam 6 from rotating, thereby ensuring the stability of the pin 8, and further ensuring the stability of the manhole cover body 3 after installation. Finally, the rubber plug 18 is inserted into the manhole cover body 3.

[0024] 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 bounce-proof manhole cover, comprising a manhole cover seat (1), characterized in that: A convex ring (2) is fixedly connected to the inner side of the manhole cover seat (1), a manhole cover body (3) is placed on the upper end of the convex ring (2), and the manhole cover body (3) is slidably connected to the inner side of the manhole cover seat (1), a rotating shaft (5) is installed inside the manhole cover body (3) through a bearing, and a cam (6) is fixedly connected to the lower end of the rotating shaft (5), and two symmetrically distributed fixing plates (7) are fixedly connected to the bottom of the manhole cover body (3), and a pin (8) is slidably connected inside each of the fixing plates (7), one end of the pin (8) is plugged into the manhole cover seat (1), and the other end of the pin (8) is fixedly connected to a push plate (9), and the push plate (9) contacts the cam (6), and a spring (10) is sleeved on the outer side of the pin (8), and a knob (12) is fixedly connected to the upper end of the rotating shaft (5).

2. The anti-bounce manhole cover according to claim 1, characterized in that: Two positioning blocks (4) are fixedly connected to the side of the manhole cover body (3), and the positioning blocks (4) are slidably connected to the manhole cover seat (1).

3. The anti-bounce manhole cover according to claim 1, characterized in that: One end of the spring one (10) is fixedly connected to the fixed plate (7), and the other end of the spring one (10) is fixedly connected to the push plate (9).

4. The anti-bounce manhole cover according to claim 1, characterized in that: A corrugated sleeve (11) is fixedly connected to the push plate (9) at a side away from the cam (6) and located outside the spring 1 (10), and the corrugated sleeve (11) is fixedly connected to the fixed plate (7).

5. The anti-bounce manhole cover according to claim 1, characterized in that: A guide rod (13) is fixedly connected to the inside of the manhole cover body (3), a slider (14) is slidably sleeved on the outside of the guide rod (13), and the slider (14) is slidably connected to the manhole cover body (3), a spring (17) is sleeved on the outside of the guide rod (13) and on the right side of the slider (14), one end of the spring (17) is fixedly connected to the slider (14), and the other end of the spring (17) is fixedly connected to the inner surface of the manhole cover body (3), and a locking pin (15) is fixedly connected to the side of the slider (14) close to the knob (12), and the locking pin (15) is plugged into the knob (12).

6. The anti-bounce manhole cover according to claim 5, characterized in that: A rubber plug (18) is slidably connected inside the manhole cover body (3) and located above the knob (12), the rubber plug (18) abuts against the knob (12), a positioning bead (19) is fixedly connected to the bottom of the rubber plug (18), and the positioning bead (19) is engaged with the knob (12).

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