Stable locking type municipal well lid

Abstract

According to the technical scheme, the stable locking type municipal well lid comprises a well lid body and a locking mechanism, the locking mechanism is fixed to the bottom of the well lid body, and when the locking mechanism is connected with a locking connector arranged on a well ring, the well lid body is locked; the locking mechanism comprises a sliding connecting cylinder and a connecting round rod arranged in the sliding connecting cylinder in a sliding mode, an extrusion spring for extruding the connecting round rod is arranged in the sliding connecting cylinder, and the connecting round rod is connected with a locking connector to lock the well lid body. The well lid locking mechanism has the advantages that the position of the well lid is stable after the well lid is locked, and the whole locking mechanism cannot vibrate along with the well lid when the well lid is rolled by an automobile, so that the well lid cannot shake, the well lid is locked on the well seat, noise cannot be generated, and the actual application effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover machines, in particular to a stable locking municipal manhole cover. Background Art

[0002] There are many underground pipelines in urban construction, such as sewers, underground gas pipelines, water pipelines, power pipelines, communication pipelines, national defense pipelines, etc. These pipelines must have an outlet to the ground at intervals. The section from the pipeline to the ground is called a manhole. The manhole opening is usually flush with the ground, so a cover is needed. The cover used to cover the manhole is called a manhole cover. Manhole covers are usually made of reinforced cement, metal, reinforced plastic and other materials, and are mainly round and square in shape.

[0003] The current method of locking manhole covers is to fix them with an elastic lock cast at the bottom of the manhole cover. When the manhole cover is closed, the elastic lock is pressed against the manhole seat to fix it. When it is opened repeatedly and impacted by external forces, the elastic lock will be deformed and the manhole cover cannot be locked. The cover will shake when a vehicle passes by, causing a lot of noise. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a stable locking municipal manhole cover.

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

[0006] The utility model is realized by the following technical solutions: a stable locking municipal manhole cover, comprising a manhole cover body and a locking mechanism, wherein a locking mechanism is fixed to the bottom of the manhole cover body, and when the locking mechanism is connected to a locking connector provided on the manhole ring, the manhole cover body is locked;

[0007] The locking mechanism includes a sliding connection cylinder and a connecting round rod slidably arranged in the sliding connection cylinder. An extrusion spring for squeezing the connecting round rod is arranged inside the sliding connection cylinder. The connecting round rod is connected to a locking connector to lock the manhole cover body.

[0008] Preferably, a fixed base is fixedly connected to the sliding connection cylinder, the fixed base and the sliding connection cylinder are arranged as an integrated structure, and a cushion block is integrally cast between the fixed base and the manhole cover body.

[0009] Preferably, the cushion blocks are provided in plurality, and the plurality of cushion blocks are provided in two parts, front and rear of the fixed base, and the cushion blocks restrict the fixed base from being provided in an inclined state or a horizontal state.

[0010] Preferably, the connecting round rod is provided with a round head or arc-shaped structure at the protruding end of the sliding connecting tube.

[0011] Preferably, the locking connector is arranged inside the well ring, a slot for the connecting round rod to pass through is opened inside the locking connector, and a plurality of arc-shaped protective layers are arranged at equal angles on the locking connector at the slot position.

[0012] Preferably, polygonal reinforcing ribs are cast on the bottom of the manhole cover body, and straight-edge reinforcing ribs connected to the polygonal reinforcing ribs are cast on the bottom of the manhole cover body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The position of the manhole cover is stable after being locked. When the manhole cover is crushed by a car, the overall locking mechanism will not vibrate, so that the manhole cover will not shake, keep the manhole cover tightly locked on the manhole seat, and will not generate noise, which has a better actual application effect;

[0015] 2. The locking mechanism can be used in appropriate quantities according to the actual needs of the manhole cover, so as to lock multiple parts of the manhole cover, making the manhole cover more stable; with higher resistance to external impact and better mute effect;

[0016] 3. The connecting round rod and the sliding connecting tube are connected by linear support, and the distance between the sliding connecting tube and the locking connecting head is small. When the connecting round rod is connected to the locking connecting head, the contact part of the connecting round rod that is supported and limited is large, and the connecting round rod is not easy to deform, which makes the locking position of the manhole cover more stable. In addition, the overall structure is simple, which is convenient for large-scale promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0018] Figure 1 This is a schematic diagram of the structure of the silent locking municipal manhole cover of the utility model;

[0019] Figure 2 This is a bottom view of the manhole cover body of the utility model;

[0020] Figure 3 It is a side view of the locking mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the locking mechanism of the utility model;

[0022] Figure 5 It is a schematic diagram of the overall structure of the manhole cover body of the utility model.

[0023] Explanations in the figure: 10, manhole cover body; 11, polygonal reinforcement ribs; 12, straight-edge reinforcement ribs; 20, locking mechanism; 21, fixed base; 22, sliding connecting tube; 221, extrusion spring; 23, connecting round rod; 24, pad; 30, manhole ring; 40, locking connector. DETAILED DESCRIPTION

[0024] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0025] like Figure 1-2 and Figure 4 As shown, as a stable locking municipal manhole cover of the utility model, it includes a manhole cover body 10 and a locking mechanism 20. The locking mechanism 20 is fixed to the bottom of the manhole cover body 10. When the locking mechanism 20 is connected to the locking connector 40 provided on the manhole ring 30, the manhole cover body 10 is locked;

[0026] The locking mechanism 20 includes a sliding connecting tube 22 and a connecting round rod 23 slidably arranged in the sliding connecting tube 22. An extrusion spring 221 for squeezing the connecting round rod 23 is arranged inside the sliding connecting tube 22. The connecting round rod 23 is squeezed by the extrusion spring 221 to control the movement of the connecting round rod 23 to the position of the sliding connecting tube 22. The connecting round rod 23 is connected to the locking connector 40 to lock the manhole cover body 10. When it is necessary to open the manhole cover body 10, a crowbar is used to pry at the opening hole of the manhole cover, and the locking mechanism 20 is subjected to force as a whole, so that the connecting round rod 23 retracts, and the manhole cover can be opened.

[0027] Specifically, by setting the sliding connection cylinder 22, the movement of the connecting rod 23 in the sliding connection cylinder 22 can be made more stable. At the same time, after the connecting rod 23 is extended, the position of the connecting rod 23 can be kept stable. When the connecting rod 23 is connected to the locking connector 40, the overall position of the connecting rod 23 is restricted, and the overall structural stability of the connecting rod 23 is high, so that the connecting rod 23 will not be deformed when the manhole cover is used for a long time, so the manhole cover will not jump up, and the manhole cover will not generate noise;

[0028] In addition, the distance between the sliding connection tube 22 and the locking connection head 40 is small, so that the portion of the connecting round rod 23 outside the sliding connection tube 22 and the locking connection head 40 is small, thereby making the locking position on the manhole cover body 10 more stable and the actual application effect better.

[0029] like Figure 3 As shown, a fixed base 21 is fixedly connected to the sliding connection tube 22 , the fixed base 21 and the sliding connection tube 22 are configured as an integrated structure, and a cushion block 24 is integrally cast between the fixed base 21 and the manhole cover body 10 .

[0030] Specifically, since the fixed base 21 and the sliding connection tube 22 are an integrated structure, the overall structure of the sliding connection tube 22 can be stable and can resist greater impact force. The connection position between the manhole cover body 10 and the manhole ring 30 is more stable. Even when impacted by external force, the position of the sliding connection tube 22 is stable and will not shake.

[0031] like Figure 3 As shown, a plurality of pads 24 are provided, and the plurality of pads 24 are provided in two parts, front and rear, of the fixed base 21. The pads 24 limit the fixed base 21 to be provided in an inclined state or a horizontal state. By providing the pads 24, pads 24 of appropriate thickness can be selected for use according to the actual thickness of the manhole cover, until the sliding connection tube 22 on the fixed base 21 and the locking connection head 40 are in the same straight line, so that the connecting round rod 23 in the sliding connection tube 22 can be more conveniently connected with the locking connection head 40. According to actual needs, the fixed base 21 can be set to an inclined state or a horizontal state, so that its application range is wider.

[0032] like Figure 3-4 As shown, the connecting round rod 23 at the protruding end of the sliding connecting tube 22 is set to a round head or arc-shaped structure. In the process of the connecting round rod 23 passing through the locking connector 40, the arc-shaped portion at the end of the connecting round rod 23 can play a guiding role, allowing the connecting round rod 23 to quickly enter the locking connector 40 without causing positional deviation.

[0033] The locking connector 40 is arranged inside the well ring 30, and a slot for the connecting round rod 23 to pass through is opened inside the locking connector 40. A plurality of arc-shaped protective layers are arranged at equal angles at the slot position on the locking connector 40. Through this structural setting, the position between the locking connector 40 and the connecting round rod 23 can be protected, preventing the connecting round rod 23 from rapid wear, thereby extending the service life of the connecting round rod 23.

[0034] like Figure 5 As shown, polygonal reinforcing ribs 11 are cast at the bottom of the manhole cover body 10, and straight-edge reinforcing ribs 12 are cast at the bottom of the manhole cover body 10 to connect the polygonal reinforcing ribs 11. Through this structural setting, the overall structural stability of the manhole cover body 10 can be higher, it is not easy to deform, and the actual application effect is better.

[0035] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A stable locking municipal manhole cover, characterized by: The invention comprises a manhole cover body (10) and a locking mechanism (20), wherein the locking mechanism (20) is fixed at the bottom of the manhole cover body (10), and when the locking mechanism (20) is connected to a locking connector (40) provided on a manhole ring (30), the manhole cover body (10) is locked; The locking mechanism (20) comprises a sliding connection cylinder (22), a connecting round rod (23) slidably arranged in the sliding connection cylinder (22), an extrusion spring (221) for squeezing the connecting round rod (23) is arranged inside the sliding connection cylinder (22), and the connecting round rod (23) is connected to a locking connector (40) to lock the manhole cover body (10).

2. A stable locking municipal manhole cover according to claim 1, characterized in that: The sliding connection tube (22) is fixedly connected to a fixed base (21), the fixed base (21) and the sliding connection tube (22) are arranged as an integrated structure, and a cushion block (24) is integrally cast between the fixed base (21) and the manhole cover body (10).

3. A stable locking municipal manhole cover according to claim 2, characterized in that: The cushion blocks (24) are arranged in plurality, and the plurality of cushion blocks (24) are arranged in two parts, front and rear of the fixed base (21), and the cushion blocks (24) restrict the fixed base (21) from being arranged in an inclined state or a horizontal state.

4. The stable locking municipal manhole cover according to claim 1, characterized in that: The connecting round rod (23) is arranged at the protruding end of the sliding connecting cylinder (22) in a round head or arc-shaped structure.

5. A stable locking municipal manhole cover according to claim 4, characterized in that: The locking connector (40) is arranged inside the well ring (30), and a slot for the connecting round rod (23) to pass through is opened inside the locking connector (40). A plurality of arc-shaped protective layers are arranged at equal angles on the locking connector (40) at the slot position.

6. The stable locking municipal manhole cover according to claim 1, characterized in that: A polygonal reinforcing rib (11) is cast on the bottom of the manhole cover body (10), and a straight-edge reinforcing rib (12) connected to the polygonal reinforcing rib (11) is cast on the bottom of the manhole cover body (10).

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