Electric heat preservation manhole with locking mechanism

Abstract

The utility model discloses an electric heat preservation manhole with a locking mechanism, relates to the field of storage equipment, and aims at solving the problems that an existing heat preservation manhole is large in operation difficulty, unstable in sealing and high in maintenance cost in the using process, the electric heat preservation manhole comprises a bottom frame, a cover plate is hinged to one side of the bottom frame, and a closed fixing seat is fixedly connected to the cover plate. A transverse push rod is slidably connected into the closed fixing seat, locking mechanisms are arranged on the two sides of the transverse push rod, the bottoms of the two locking mechanisms are fixedly connected with the bottom frame, a telescopic mechanism is hinged to the middle of the transverse push rod, a push rod seat is hinged to the other end of the telescopic mechanism and fixedly connected with the bottom frame, and the upper end of the push rod seat is higher than the cover plate. The device has the advantages that the cover plate is controlled to be opened and closed at any angle through the telescopic mechanism, and the using safety and the sealing performance of the cover plate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage equipment, in particular to an electric heat-insulating manhole with a locking mechanism. Background Art

[0002] In the warehousing industry, storage tanks and large containers are key equipment for storing and transporting various materials, and their safety and operating efficiency are of vital importance. Manholes, as an important part of these equipment, are not only used for personnel to enter and exit for installation, inspection and maintenance, but also bear the important responsibilities of ventilation, fire retardancy and protection of storage tanks. However, traditional manhole designs often have many inconveniences and safety hazards, especially in the opening and closing operations of manhole covers.

[0003] At present, the insulation manhole covers widely used in the warehousing industry are mostly operated manually. This design faces the following main problems in practical application:

[0004] Inconvenient operation and safety risks: Due to the large size and heavy weight of the manhole cover, it is not only time-consuming and laborious for operators to open it manually, but also there are great safety risks, such as sprains and injuries caused by improper operation. At the same time, when closing manually, the sealing performance is greatly affected by human factors, and it is difficult to ensure that the best sealing effect can be achieved every time it is closed, which may cause leakage, increased heat loss and other problems.

[0005] Unstable sealing performance: During the manual closing process, due to differences in the operator's technical level, experience and physical condition, it is often impossible to ensure that a uniform sealing standard can be achieved every time the tank is closed. This unstable sealing performance not only affects the thermal insulation effect of the storage tank, but may also have an adverse effect on the storage quality of the materials in the tank.

[0006] Increased maintenance costs: Due to the inconvenience of manual operation and the instability of sealing performance, the maintenance cost and downtime of the equipment are increased. Frequent repair and replacement of seals not only increase the operating costs of the enterprise, but may also affect production progress and efficiency. Utility Model Content

[0007] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an electric thermal insulation manhole with a locking mechanism. Through this design, the problems of the existing thermal insulation manhole being difficult to operate, unstable sealing and high maintenance cost during use are effectively solved.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the utility model comprises a bottom frame, a cover plate is hingedly connected to one side of the bottom frame, a closed fixing seat is fixedly connected to the cover plate, a horizontal push rod is slidably connected in the closed fixing seat, locking mechanisms are arranged on both sides of the horizontal push rod, the bottoms of the two locking mechanisms are fixedly connected to the bottom frame, a telescopic mechanism is hingedly connected to the middle of the horizontal push rod, a push rod seat is hingedly connected to the other end of the telescopic mechanism, the push rod seat is fixedly connected to the bottom frame, and the upper end of the push rod seat is higher than the cover plate;

[0009] The locking mechanism comprises an open fixing seat, the open fixing seat is provided with a slot, a roller is matched in the slot, and the roller is rotatably connected to the transverse push rod.

[0010] Preferably, the telescopic mechanism comprises a push-pull rod and a sleeve, the push-pull rod is hinged to the transverse push rod, the sleeve is hinged to the push rod seat, and an adjusting motor for driving the push-pull rod to slide is mounted on the sleeve.

[0011] Preferably, one side of the slot is bent downward.

[0012] Preferably, a rubber strip is fixedly connected to the bottom frame, and the rubber strip is a sideways H-shaped structure.

[0013] Preferably, an L-shaped support strip is fixedly connected inside the bottom frame, a U-shaped sealing strip is matched on one side of the support strip, and the sealing strip is fixedly connected to the cover plate.

[0014] Preferably, a sliding groove for sliding the transverse push rod is opened on the closed fixing seat, a fixing plate is fixedly connected to one side of the transverse push rod, a tension spring is installed between the fixing plate and the closed fixing seat, and the tension spring is located below the transverse push rod.

[0015] Preferably, a heat-insulating layer is filled in the middle of the cover plate.

[0016] Compared with the prior art, the utility model has the following outstanding advantages:

[0017] The utility model realizes the electric opening and closing of the manhole cover through the telescopic mechanism, which is more convenient than the traditional manual opening and closing. The electric opening and closing of the manhole cover further realizes the remote control and detection of the opening and closing of the manhole cover.

[0018] The telescopic mechanism of the utility model has a self-locking function, and when the manhole cover plate stops at any angle, it can be automatically locked to ensure the safety of personnel when entering and exiting.

[0019] The locking mechanism of the utility model enables the manhole cover plate to automatically enter a locking state when the manhole is closed, thereby ensuring a good sealing function between the manhole cover plate and the manhole bottom frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the forward cover plate of the utility model being opened.

[0022] Figure 3 It is a schematic diagram of the closed structure of the forward cover plate of the utility model.

[0023] Figure 4 For this utility model Figure 3 Schematic diagram of the locally enlarged structure of M.

[0024] Figure 5 For this utility model Figure 3 Schematic diagram of the N local enlarged structure.

[0025] Figure 6 It is a schematic diagram of the structure of the utility model from top view.

[0026] Figure 7 For this utility model Figure 6 Schematic diagram of the BB cross-section structure.

[0027] Numbers in the figure: 1. bottom frame; 2. cover plate; 3. closed fixing seat; 4. horizontal push rod; 5. locking mechanism; 501. open fixing seat; 502. slot; 503. roller; 504. slide slot; 505. fixing plate; 506. tension spring; 6. telescopic mechanism; 601. push-pull rod; 602. sleeve; 7. push rod seat; 8. rubber strip; 9. support strip; 10. sealing strip. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model are clearly and completely described below in conjunction with 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 of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] Please see attached Figure 1-7, the present embodiment is an electric thermal insulation manhole with a locking mechanism: it includes a bottom frame 1, a cover plate 2 is hinged on one side of the bottom frame 1, a closed fixing seat 3 is fixedly connected to the cover plate 2, a horizontal push rod 4 is slidably connected in the closed fixing seat 3, locking mechanisms 5 are provided on both sides of the horizontal push rod 4, the bottoms of the two locking mechanisms 5 are fixedly connected to the bottom frame 1, a telescopic mechanism 6 is hinged on the middle part of the horizontal push rod 4, a push rod seat 7 is hinged on the other end of the telescopic mechanism 6, the push rod seat 7 is fixedly connected to the bottom frame 1, and the upper end of the push rod seat 7 is higher than the cover plate 2, the locking mechanism 5 includes an open fixing seat 501, a card slot 502 is provided on the open fixing seat 501, a roller 503 is matched in the card slot 502, and the roller 503 is rotatably connected to the horizontal push rod 4.

[0030] The bottom frame 1 is surrounded by thick plates, and the middle part of the bottom frame 1 is a hollow structure. The bottom frame 1 is similar to a Chinese-shaped structure. The bottom frame 1 and the cover plate 2 are hinged by hinges. The cover plate 2 rotates relative to the bottom frame 1 with the rotating axis of the hinge as the center. The closed fixing seat 3 on the upper side of the cover plate 2 is fixed to the cover plate 2 by fixing bolts. The horizontal push rod 4 can only slide horizontally relative to the cover plate 2 in the closed fixing seat 3. The front and rear sides of the horizontal push rod 4 are provided with locking mechanisms 5. The locking mechanism 5 prevents the cover plate 2 from flipping upward. One end of the telescopic mechanism 6 is hinged to the middle part of the horizontal push rod 4, and the other end of the telescopic mechanism 6 is hinged to the push rod seat 7. In order to prevent the telescopic mechanism 6 from appearing at the dead point of the device, the push rod seat 7 and the telescopic mechanism 6 are connected. The position of the hinge point of the telescopic mechanism 6 is higher than the horizontal push rod 4. The telescopic mechanism 6 is electrically controlled. By changing the length of the telescopic mechanism 6, the telescopic mechanism 6 drives the cover plate 2 to rotate and lock through the horizontal push rod 4; there are two sets of open fixed seats 501 in the locking mechanism 5, and the bottom of the open fixed seat 501 is fixed to the bottom frame 1 by fixing bolts. The opening of the slot 502 on the closed fixed seat 3 is facing the direction of the push rod seat 7. The length of the slot 502 is the same as the horizontal movement distance of the horizontal push rod 4. The roller 503 is connected to the horizontal push rod 4 by a connecting rod. The rotating connection of the roller 503 can reduce the friction coefficient of the roller 503 in the slot 502, which is convenient for the movement of the roller 503.

[0031] The telescopic mechanism 6 is composed of a push-pull rod 601 and a sleeve 602. The drive between the push-pull rod 601 and the sleeve 602 is driven by an adjusting motor. A screw is connected to the adjusting motor. The screw is threadedly connected to the push-pull rod 601. The screw is rotatably connected to the sleeve 602. The rotation of the screw drives the push-pull rod 601 to move relative to the sleeve 602, thereby changing the length of the telescopic mechanism 6. In addition, the telescopic movement of the push-pull rod 601 and the sleeve 602 can also be achieved through gear linkage. The push-pull rod is provided with a tooth groove that cooperates with the gear. The push-pull rod is driven to extend and retract in the sleeve through the engagement of the rotating gear with the tooth groove. The gear can be driven by a motor or manually. Further, the telescopic mechanism 6 can also be a hydraulic telescopic rod or an electric telescopic rod. The telescopic mechanism 6 is a component with a self-locking function after telescopic adjustment, so that the cover plate 2 can be maintained at a specific angle after flipping.

[0032] The position of the card slot 502 far from the opening is inclined downward, such as Figure 7 As shown, when the horizontal push rod 4 drives the roller 503 to enter the buckle fixing seat, the roller 503 first enters the card slot 502 horizontally, and then under the limit of the card slot 502, the roller 503 moves downward, and the roller 503 moves downward to drive the horizontal push rod 4 to move downward, and the horizontal push rod 4 drives the cover plate 2 to rotate downward, thereby increasing the clamping force between the cover plate 2 and the bottom frame 1. The cross-sectional pressure between the roller 503 at the end of the horizontal push rod 4 and the open fixing seat 501 can form a stable The locked and sealed state makes the cover plate 2 more firmly sealed on the bottom frame 1, avoids gaps, and improves the thermal insulation effect. In order to further improve the sealing effect, a rubber strip 8 is installed on the bottom frame 1. The rubber strip 8 is a sideways H-shaped structure. The H-shaped rubber strip 8 has better deformation ability and can achieve a better sealing effect when the cover plate 2 and the bottom frame 1 are squeezed. The bottom frame 1 and the support strip 9 are densely welded along the seams around. The sealing strip 10 is a U-shaped structure, and the opening of the sealing strip 10 is stuck around the edge of the support strip 9 that protrudes forward.

[0033] The slide groove 504 guides the sliding of the cross-tie rod, and the fixing plate 505 is installed on the cross-push rod 4. The tension spring 506 makes the cross-push rod 4 tend to move to the right. The cover plate 2 is filled with an insulation layer to improve the insulation effect of the device.

[0034] The overall workflow of the utility model when used: Figure 1As shown, the initial position of the cover 2 is to cover the bottom frame 1. At this time, the roller 503 is located at the left side of the slot 502. When the cover 2 needs to be opened, the push-pull rod 601 is pushed into the sleeve 602 through the telescopic mechanism 6, and the overall length of the push-pull rod 601 and the sleeve 602 becomes shorter. When the telescopic mechanism 6 becomes shorter, the push-pull rod 601 drives the horizontal push rod 4 to move to the right, and at the same time, the horizontal push rod 4 drives the roller 503 to move to the right side of the slot 502. When the horizontal push rod 4 moves to the rightmost end of the slide slot 504, the roller 503 disengages from the slot 502. At this time, the telescopic mechanism 6 becomes shorter again, and the push-pull rod 601 will drive the cover 2 to rotate upward, thereby opening the cover 2. The push-pull rod 601 and the sleeve 602 can be self-locked after sliding to ensure that the cover 2 will not fall automatically after opening, thereby ensuring safety.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric thermal insulation manhole with a locking mechanism, characterized in that: The invention comprises a bottom frame (1), a cover plate (2) being hingedly connected to one side of the bottom frame (1), a closed-end fixing seat (3) being fixedly connected to the cover plate (2), a horizontal push rod (4) being slidably connected inside the closed-end fixing seat (3), locking mechanisms (5) being provided on both sides of the horizontal push rod (4), the bottoms of the two locking mechanisms (5) being fixedly connected to the bottom frame (1), a telescopic mechanism (6) being hingedly connected to the middle of the horizontal push rod (4), the other end of the telescopic mechanism (6) being hingedly connected to a push rod seat (7), the push rod seat (7) being fixedly connected to the bottom frame (1), and the upper end of the push rod seat (7) being higher than the cover plate (2); The locking mechanism (5) comprises an open fixing seat (501), the open fixing seat (501) is provided with a slot (502), a roller (503) is fitted in the slot (502), and the roller (503) is rotatably connected to the horizontal push rod (4).

2. The electric thermal insulation manhole with a locking mechanism according to claim 1, characterized in that: The telescopic mechanism (6) comprises a push-pull rod (601) and a sleeve (602); the push-pull rod (601) is hinged to the transverse push rod (4); the sleeve (602) is hinged to the push rod seat (7); and an adjusting motor for driving the push-pull rod (601) to slide is mounted on the sleeve (602).

3. The electric heat-insulating manhole with a locking mechanism according to claim 1, characterized in that: One side of the slot (502) is bent downward.

4. The electric thermal insulation manhole with a locking mechanism according to claim 1, characterized in that: A rubber strip (8) is fixedly connected to the bottom frame (1), and the rubber strip (8) is a sideways H-shaped structure.

5. The electric thermal insulation manhole with a locking mechanism according to claim 1, characterized in that: An L-shaped support strip (9) is fixedly connected inside the bottom frame (1), a U-shaped sealing strip (10) is matched on one side of the support strip (9), and the sealing strip (10) is fixedly connected to the cover plate (2).

6. The electric heat-insulating manhole with a locking mechanism according to claim 1, characterized in that: The closed-end fixing seat (3) is provided with a sliding groove (504) for the lateral push rod (4) to slide, a fixing plate (505) is fixedly connected to one side of the lateral push rod (4), a tension spring (506) is installed between the fixing plate (505) and the closed-end fixing seat (3), and the tension spring (506) is located below the lateral push rod (4).

7. The electric heat-insulating manhole with a locking mechanism according to claim 1, characterized in that: The middle part of the cover plate (2) is filled with a heat-insulating layer.

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