Access door applied to vertical shaft concrete mixing main machine

Abstract

The utility model discloses an access door applied to a vertical shaft concrete mixing main machine, which comprises a conical top cover, an access hole is arranged on the conical top cover, an access coaming is arranged on the periphery of the access hole, an access door body matched with the access coaming for use is arranged on the conical top cover, and a door body seat plate is arranged at the top of the access door body. The door body seat plate is installed on the conical top cover in a hinged mode, the gas springs are installed on the two sides of the access door body, cylinder bodies of the gas springs are installed on the access door body in a hinged mode, piston rods of the gas springs are installed on the conical top cover in a hinged mode, and the hand wheel lock is arranged at the bottom of the access door body. The access door body and the access coaming extrude the sealing strip to form a sealing structure, and the included angles among the six edges are all obtuse angles, so that no stress concentration exists at the corners of the sealing strip, and the sealing effect is good; the hexagonal access door body is of a flat non-arc plate structure, machining is easy, and the manufacturing difficulty is lowered; transverse ribs and vertical ribs are welded to the access door body, the structural strength is enhanced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of mixers, and particularly relates to an inspection door applied to a vertical-axis concrete mixing main machine. Background Art

[0002] The vertical-axis concrete mixing main machine is used for mixing concrete mortar, has excellent performance, and is widely popular in the market. A top cover is installed on the upper part of the mixing drum, and an inspection door is arranged on the top cover. The inspection door can be lifted to allow maintenance personnel to enter the mixer for regular maintenance. However, the existing inspection doors of vertical-axis concrete mixing main machines still have some deficiencies in actual use: poor sealing performance leads to ash leakage, and the structure is complex and not easy to process, etc.

[0003] Therefore, an inspection door applied to a vertical-axis concrete mixing main machine is needed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an inspection door applied to a vertical-axis concrete mixing main machine.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an inspection door applied to a vertical-axis concrete mixing main machine, including a conical top cover. An inspection opening is arranged on the conical top cover, and an inspection enclosure is installed around the inspection opening. An inspection door body is installed on the conical top cover and is used in cooperation with the inspection enclosure. A door body seat plate is installed at the top of the inspection door body, and the door body seat plate is installed on the conical top cover by means of hinge. Gas springs are installed on both sides of the inspection door body. The cylinder body of the gas spring is installed on the inspection door body by means of hinge, and the piston rod of the gas spring is installed on the conical top cover by means of hinge. A handwheel lock is arranged at the bottom of the inspection door body.

[0006] Specifically, an inspection cover plate is arranged on the inspection door body. A bending plate is welded on the inner periphery of the inspection cover plate, and a sealing strip is installed between the inspection cover plate and the bending plate.

[0007] Specifically, a travel switch for detecting the opening and closing of the inspection door is installed on the conical top cover.

[0008] Specifically, the door body seat plate is welded on the top of the inspection cover plate.

[0009] Specifically, a lock pressing plate is welded at the bottom of the inspection cover plate, and the lock pressing plate is connected with the handwheel lock.

[0010] Specifically, hinge wire seats connected with the gas springs are welded on both sides of the inspection cover plate.

[0011] Specifically, horizontal ribs and vertical ribs for enhancing the structural strength are welded on the inner side of the inspection cover plate.

[0012] Specifically, the inspection door body is arranged in a hexagonal shape as a whole.

[0013] The utility model has the following beneficial effects:

[0014] 1) The maintenance door body and the maintenance enclosure board extrude the sealing strip to form a sealing structure, and the included angles between the six sides are all obtuse angles, so that there is no stress concentration at the corners of the sealing strip, and the sealing effect is good;

[0015] 2) The hexagonal maintenance door body is a flat plate non-arc plate structure, which is easy to process and reduces the manufacturing difficulty;

[0016] 3) The maintenance door body is welded with horizontal ribs and vertical ribs, which enhances the structural strength and extends the service life. Description of the drawings

[0017] Figure 1 It is a schematic structural diagram of the utility model.

[0018] Figure 2 It is Figure 1 the schematic structural diagram at A-A in

[0019] Figure 3 It is Figure 2 the end view of

[0020] In the figure: 1 - conical top cover; 2 - maintenance enclosure board; 3 - maintenance door body; 4 - door body seat plate; 5 - handwheel lock; 6 - gas spring; 7 - travel switch; 8 - maintenance cover plate; 9 - bending plate; 10 - sealing strip; 11 - lock pressing plate; 12 - hinge wire seat; 13 - horizontal rib; 14 - vertical rib. Specific implementation mode

[0021] Now, the utility model will be further described in detail with reference to the drawings.

[0022] As Figures 1-3 shown, a maintenance door applied to a vertical shaft concrete mixing main machine includes a conical top cover 1. A hexagonal maintenance opening is provided at the conical top cover 1. A maintenance enclosure board 2 is installed along the periphery of the maintenance opening, and a maintenance door body 3 is installed in cooperation with the maintenance enclosure board 2; the top of the maintenance door body 3 is installed on the conical top cover 1 through a hinged door body seat plate 4, a stainless steel handwheel lock 5 is installed at the bottom of the maintenance door body 3, gas springs 6 are symmetrically installed on both sides of the maintenance door body 3, the cylinder body of the gas spring 6 is hinged on the maintenance door body 3, the piston rod of the gas spring 6 is hinged on the conical top cover 1, and a travel switch 7 for detecting the opening and closing of the maintenance door is installed at the lower left of the maintenance door body 3.

[0023] The inspection door body 3 includes a hexagonal inspection cover plate 8. A bent plate 9 is welded to the inner periphery of the inspection cover plate 8. A sealing strip 10 is installed between the inspection cover plate 8 and the bent plate 9. A door body seat plate 4 hinged to the conical top cover 1 is welded to the top of the inspection cover plate 8. A lock pressure plate 11 connected to the handwheel lock 5 is welded to the bottom of the inspection cover plate 8. Hinge wire seats 12 connected to the gas springs 6 are welded to both sides of the inspection cover plate 8. Horizontal ribs 13 and vertical ribs 14 for enhancing the structural strength are welded to the inner side of the hexagonal inspection cover plate 8.

[0024] The inspection door body 3 is arranged in a hexagonal shape as a whole, and all six sides are straight edges.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inspection door for a vertical shaft concrete mixer, characterized in that: It comprises a conical top cover, which is provided with an inspection port, an inspection panel is installed on the periphery of the inspection port, an inspection door body used in conjunction with the inspection panel is installed on the conical top cover, a door body seat plate is installed on the top of the inspection door body, the door body seat plate is hingedly mounted on the conical top cover, gas springs are installed on both sides of the inspection door body, the cylinder body of the gas spring is hingedly mounted on the inspection door body, the piston rod of the gas spring is hingedly mounted on the conical top cover, and a handwheel lock is provided on the bottom of the inspection door body; an inspection cover plate is provided on the inspection door body, a bending plate is welded on the inner periphery of the inspection cover plate, and a sealing strip is installed between the inspection cover plate and the bending plate; a locking pressure plate is welded on the bottom of the inspection cover plate, and the locking pressure plate is connected to the handwheel lock; hinged wire seats connected to the gas springs are welded on both sides of the inspection cover plate; horizontal and vertical ribs for enhancing structural strength are welded on the inner side of the inspection cover plate.

2. The inspection door for a vertical shaft concrete mixer according to claim 1, characterized in that: A travel switch for detecting the opening and closing of the inspection door is installed on the conical top cover.

3. The inspection door for a vertical shaft concrete mixer according to claim 1, characterized in that: The door body seat plate is welded to the top of the inspection cover plate.

4. The inspection door for a vertical shaft concrete mixer according to claim 1, characterized in that: The inspection door body is arranged in a hexagonal shape as a whole.

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