Mortise lock well lid with good stability

Abstract

The utility model discloses a built-in lock well lid with good stability. The built-in lock well lid comprises an upper lid body, a lower base body and a limiting plug. An upper lock hole is formed in the upper cover body, a lower lock hole is formed in the lower seat body, the upper cover body covers the lower seat body, the upper lock hole and the lower lock hole are communicated with each other, a first clamping table is formed on the upper lock hole, a second clamping table is formed on the lower lock hole, and the upper lock hole and the lower lock hole are fixedly connected through a bolt and a nut. The limiting plug comprises a surface cover and an elastic hook, the surface cover covers the upper lock hole, and the elastic hook is clamped and fixed in the lower lock hole. Compared with the prior art, according to the built-in lock well lid with the good stability, movement of the bolt and the nut used for locking can be limited through the limiting plug, the bolt and the nut are prevented from falling off and losing efficacy, and the stability of well lid products is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of well lid, concretely relates to a well lid of good stability of hidden lock. BACKGROUND

[0002] Well lid is used for covering the deep well of road or home, prevents people or object from falling. According to material, it can be divided into metal well lid, high-strength fiber cement concrete well lid, resin well lid etc. Generally adopt circular. It can be used in green belt, sidewalk, motor vehicle lane etc. The existing well lid as shown in patent CN111456102A is locked and fixed together with well lid and well seat through fixing bolt, then end cover is covered to prevent the loosening of fastening bolt. But end cover will be detached and fail in the long-time use process due to the vibration of well lid caused by vehicle driving, and then the fastening bolt loosens and fails.

[0003] Therefore, the inventor of the present application has made a deep research on the above-mentioned defects in the prior art, and thus the present case is produced. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the utility model is to provide a well lid of good stability, which has the advantages of avoiding well lid falling off and good stability.

[0005] In order to achieve the above-mentioned purpose, the solution of the utility model is as follows:

[0006] A well lid of good stability, comprising an upper cover body, a lower seat body and a limiting plug, wherein, the upper cover body is formed with an upper locking hole, the lower seat body is formed with a lower locking hole, the upper cover body is arranged on the lower seat body, the upper locking hole and the lower locking hole are communicated with each other, the upper locking hole is formed with a first clamping groove, the lower locking hole is formed with a second clamping groove, the upper locking hole and the lower locking hole are fixedly connected through a bolt and a nut, the limiting plug comprises a cover and an elastic hook, the cover is arranged on the upper locking hole, and the elastic hook is clamped and fixed in the lower locking hole.

[0007] Further, the upper end of the first clamping groove is used for abutting against the lower end of the head of the bolt, and the lower end of the second clamping groove is used for abutting against the upper end of the nut.

[0008] Further, the lower end of the second clamping groove is further formed with a limiting block for limiting the movement of the nut.

[0009] Further, the limiting plug further comprises an elastic block, the number of the elastic hooks is two, the elastic block is movably installed between the two elastic hooks, a pre-tightening spring is installed between the elastic block and the elastic hooks, the upper end of the pre-tightening spring abuts against the lower end of the cover, and the lower end of the pre-tightening spring abuts against the upper end of the elastic block.

[0010] Further, a pull ring is installed on the cover, and the pull ring is fixedly connected with the elastic block through a pull rod.

[0011] Further, a boss is formed on the lower seat body, the lower locking hole is formed on the boss, and the boss and the lower seat body are fixedly welded.

[0012] Further, a limiting strip is formed in the lower locking hole, and the elastic hooks are clamped with the limiting strip.

[0013] Further, the lower locking hole is a through hole, and the elastic hooks are clamped with the lower end surface of the lower locking hole.

[0014] After the above structure is adopted, the utility model relates to a well lid with good stability, which has at least the following beneficial effects:

[0015] I. When in use, first, the upper cover body is covered on the lower seat body, then the bolt and the nut are screwed between the first clamping table and the second clamping table, and then the limiting plug is inserted into the upper locking hole and the lower locking hole, the elastic hooks extend into the lower locking hole from the side of the first clamping table, and are hooked on the inner wall or the step of the inner wall or the lower end edge of the lower locking hole, so that the bolt and the nut cannot slide out of the side of the first clamping table and the second clamping table, and thus the upper cover body can be fixed on the lower seat body, and the stability of the product is greatly improved.

[0016] II. By arranging the limiting block, the nut can be prevented from sliding out of the side of the first clamping table, and the stability of the product is further improved.

[0017] III. By arranging the pre-tightening spring to abut against the elastic block, the elastic hooks can be clamped on the inner wall of the lower locking hole, the limiting plug can be prevented from being separated from the lower locking hole and the upper locking hole due to the vibration caused by the back-and-forth rolling of the vehicle, and thus the stability is better.

[0018] Compared with the prior art, the utility model discloses a well lid with good stability, the movement of the bolt and the nut for locking can be limited by the limiting plug, the bolt and the nut can be prevented from falling off and being invalid, and the stability of the well lid product is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The utility model relates to a top view of a well lid with good stability.

[0020] Figure 2 It is the perspective drawing of the limiting plug in the utility model.

[0021] Figure 3 It is the partial sectional view of the well lid with good stability.

[0022] Figure 4 It is the perspective drawing of the lower seat body in the utility model.

[0023] Figure 5 It is the perspective drawing of the lower seat body from another angle.

[0024] Figure 6 It is the perspective drawing of the upper cover body in the utility model.

[0025] Figure 7 It is the perspective drawing of the upper cover body from another angle.

[0026] Figure 8 It is the perspective drawing of the well lid with good stability.

[0027] In the drawing,

[0028] Upper cover body 1, lower seat body 2, limiting plug 3,

[0029] Upper locking hole 11, first clamping table 12,

[0030] Lower locking hole 21, second clamping table 22, limiting block 23, boss 24, limiting strip 25,

[0031] Face cover 31, elastic hook 32, elastic block 33,

[0032] Pre-tightening spring 34, inclined surface 35, pull ring 36, pull rod 37,

[0033] Bolt 100, nut 200. Specific implementation

[0034] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0035] As Figures 1 to 8As shown, it is a kind of stable lock well lid of the utility model, including upper cover body 1, lower seat body 2 and limit plug 3, the upper cover body 1 is formed with upper lock hole 11, the lower seat body 2 is formed with lower lock hole 21, the upper cover body 1 cover is established in the lower seat body 2, the upper lock hole 11 and the lower lock hole 21 are interconnected, the upper lock hole 11 is formed with first card station 12, the lower lock hole 21 is formed with second card station 22, the upper lock hole 11 and the lower lock hole 21 are fixedly connected by bolt 100 nut 200, the limit plug 3 includes face cover 31 and elastic hook 32, the face cover 31 cover is established in the upper lock hole 11, the elastic hook 32 is fixedly connected in the lower lock hole 21. When using, first the upper cover body 1 cover is established in the lower seat body 2, then bolt 100 and nut 200 are tightened between the first card station 12 and the second card station 22, then the limit plug 3 is inserted into the upper lock hole 11 and the lower lock hole 21, the elastic hook 32 will be from the side of the first card station 12 into the groove the lower lock hole 21, and hook in the inner wall or the inner wall step of the lower lock hole 21 or lower end edge, so that bolt 100 and nut 200 cannot slide from the side of the first card station 12 and the second card station 22, so the upper cover body 1 can be firmly fixed on the lower seat body 2, greatly improve the stability of product.

[0036] Preferably, the upper end of the first card station 12 is used to abut against the lower end of the bolt head, and the lower end of the second card station 22 is used to abut against the upper end of the nut. In this way, the bolt and the nut can clamp the upper cover body and the lower seat body by clamping the first card station and the second card station.

[0037] Preferably, the lower end of the second card station 22 is further formed with a limiting block 23 for limiting the movement of the nut. By providing the limiting block 23, the nut can be prevented from sliding out of the side of the first card station, further improving the stability of the product.

[0038] Preferably, as Figure 2As shown, the limiting plug 3 further comprises an elastic block 33, the number of the elastic hooks 32 is two, the elastic block 33 is movably installed between the two elastic hooks 32, a pre-tightening spring 34 is installed between the elastic block 33 and the elastic hooks 32, the upper end of the pre-tightening spring 34 abuts against the lower end of the face cover 31, and the lower end of the pre-tightening spring 34 abuts against the upper end of the elastic block 33; the inner sides of the two elastic hooks 32 are respectively formed with inclined surfaces 35 inclined inward from top to bottom, and the two sides of the elastic block 33 abut against the two inclined surfaces 35. By arranging the pre-tightening spring 34 to abut against the elastic block 33, the elastic hooks 32 can firmly clamp the inner wall of the lower locking hole 21, so that the limiting plug 3 cannot be separated from the lower locking hole 21 and the upper locking hole 11 due to the vibration caused by the back-and-forth rolling of the vehicle, and thus the stability is better.

[0039] Preferably, a pull ring 36 is arranged on the face cover 31 and fixedly connected with the elastic block 33 through a pull rod 37. In use, the pull rod 37 and the elastic block 33 are first pulled upward through the pull ring 36, then the elastic hooks 32 are inserted into the lower locking hole 21, and then the pull ring 36 is released, so that the elastic block 33 moves downward along the inclined surfaces 35 under the reset of the pre-tightening spring 34, so that the lower end of the elastic hooks 32 is expanded. Preferably, a limiting strip 25 is formed in the lower locking hole 21, and the elastic hooks 32 are clamped with the limiting strip 25 after being expanded. Alternatively, the lower locking hole 21 is a through hole, and the elastic hooks 32 are clamped with the lower end surface of the lower locking hole 21 after being expanded.

[0040] Preferably, as shown in Figure 4 and as shown in Figure 5 A boss 24 is formed on the lower seat body 2, the lower locking hole 21 is formed on the boss 24, and the boss 24 and the lower seat body 2 are fixedly welded. In this way, the structure in the lower locking hole 21 can be conveniently machined, and then welded to the boss 24 after machining.

[0041] Compared with the prior art, the utility model discloses a stable underground lock well lid, which can limit the movement of the bolt 100 and the nut 200 for locking through the limiting plug 3, avoids the bolt 100 and the nut 200 from falling off and failing, and greatly improves the stability of the well lid product.

[0042] The above embodiments and drawings do not limit the product shape and style of the utility model, and any ordinary technical personnel in the technical field can make appropriate changes or modifications, which should be considered as not departing from the patent category of the utility model.

Claims

1. A stable padlock cover, characterized in that, Including upper cover body, lower seat body and limit plug, the upper cover body is formed with upper lock hole, the lower seat body is formed with lower lock hole, the upper cover body covers the lower seat body, the upper lock hole and the lower lock hole are communicated with each other, the upper lock hole is formed with first clamping table, the lower lock hole is formed with second clamping table, the upper lock hole and the lower lock hole are fixedly connected through bolt and nut, the limit plug includes face cover and elastic hook, the face cover covers the upper lock hole, and the elastic hook is clamped and fixed in the lower lock hole.

2. The stable padlock cover as claimed in claim 1, wherein, The upper end of the first clamping table is used for abutting against the lower end of the bolt head, and the lower end of the second clamping table is used for abutting against the upper end of the nut.

3. The stable padlock cover as claimed in claim 1, wherein, The lower end of the second clamping table is further formed with a limiting block for limiting the movement of the nut.

4. The stable padlock cover as claimed in claim 1, wherein, The limit plug further includes an elastic block, the number of the elastic hook is two, the elastic block is movably installed between the two elastic hooks, a pre-tightening spring is installed between the elastic block and the elastic hook, the upper end of the pre-tightening spring abuts against the lower end of the face cover, and the lower end of the pre-tightening spring abuts against the upper end of the elastic block, the inner sides of the two elastic hooks are respectively formed with inclined surfaces that are inclined inward from top to bottom, and the elastic block is abutted between the inclined surfaces on the two sides.

5. The stable padlock cover as claimed in claim 4, wherein, A pull ring is installed on the face cover, and the pull ring is fixedly connected with the elastic block through a pull rod.

6. The stable padlock cover as claimed in claim 1, wherein, The lower seat body is formed with a boss, the lower lock hole is formed on the boss, and the boss and the lower seat body are welded and fixed.

7. The stable padlock cover as claimed in claim 1, wherein, A limiting strip is formed in the lower lock hole, and the elastic hook is clamped with the limiting strip.

8. The stable padlock cover as claimed in claim 1, wherein, The lower lock hole is a through hole, and the elastic hook is clamped with the lower lock hole lower end face. The lower lock hole is a through hole, and the elastic hook is clamped with the lower lock hole lower end face.

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