Tunnel blast hole sealing device

Abstract

A tunnel blast hole sealing device comprises a frame-shaped limiting opening, an opening and closing mechanism, a pushing mechanism and a sealing mechanism. The sealing mechanism comprises a trumpet-shaped curtain and an elastic steel ring fixed at the edge of the top of the trumpet-shaped curtain; the bottom of the horn-shaped curtain is fixedly connected with a fixing rod; the two sides of the frame-shaped limiting opening are hinged to one ends of opening and closing mechanisms correspondingly. The other end of the opening and closing mechanism is hinged to one end of the pushing mechanism; pushing mechanisms are respectively connected to two sides of the bottom of the fixing rod; and when the bottom of the fixing rod is pushed to move towards the frame-shaped limiting opening, the elastic steel ring of the sealing mechanism penetrates out of the frame-shaped limiting opening to be exploded and seal the blasting hole. The device is simple in structure, convenient to operate, high in applicability and high in efficiency.

Description

Technical Field

[0001] The utility model belongs to the relevant technical field of tunnel blasting engineering, and in particular relates to a tunnel blasting hole sealing device. Background Art

[0002] When conducting tunnel blasting operations, it is necessary to open blasting holes in the blasting section in advance. The blasting holes cannot be opened simultaneously, and there is a time difference in the opening of the blasting hole groups. The blasting holes opened first cannot be used immediately. This results in the need for supervision and maintenance of the blasting holes opened first for a period of time to prevent sand, stone, water and other debris from falling in and affecting the subsequent placement of explosives. The blasting holes need to be temporarily closed. For this purpose, a tunnel blasting hole closing device is designed.

[0003] Most of the current devices for closing tunnel blasting holes are complicated to operate, require certain consumables, and are not reusable. For example, Chinese utility model patent ZL202320527268.5 discloses a blasting hole closing assembly, which provides a "tube + sealing structure" closing device, but after the blasting hole is closed, it needs to be adjusted several times to find a suitable insertion angle, so the operation is relatively complicated; Chinese utility model patent ZL202322224066.6 discloses a new type of sealing device, which provides a "sealing tube + adjusting rod + sealing rubber" device, but the device is limited to the sealing diameter of the blasting hole, and cannot be used for blasting holes larger than the diameter of the device. In short, the existing tunnel blasting hole closing devices have the problems of complicated operation, requiring certain consumables and being non-reusable, having certain waste, and being limited to different forms of blasting holes, which affects the development of blasting construction and is not conducive to promotion and application in actual engineering. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a tunnel blasting hole sealing device which is easy to use and reusable.

[0005] The utility model is achieved in this way:

[0006] A tunnel blasting hole sealing device: comprising: a frame-shaped limit opening, an opening and closing mechanism, a pushing mechanism, and a sealing mechanism;

[0007] The opening and closing mechanism comprises: a first opening and closing rod and a second opening and closing rod;

[0008] The pushing mechanism comprises: a first pushing rod, a second pushing rod and a fixing rod;

[0009] The closing mechanism comprises: a trumpet-shaped curtain and an elastic steel ring fixed to the top edge of the trumpet-shaped curtain; the bottom of the trumpet-shaped curtain is fixedly connected to the fixing rod;

[0010] A first fixing plate and a second fixing plate are respectively provided on both sides of the frame-shaped limiting opening; the first fixing plate is hinged to one end of the first opening and closing rod, and the second fixing plate is hinged to one end of the second opening and closing rod; the other end of the first opening and closing rod is hinged to one end of the first pushing rod, and the other end of the second opening and closing rod is hinged to one end of the second pushing rod;

[0011] A first ear and a second ear are respectively provided on both sides of the bottom of the fixing rod; the first ear is hinged to the other end of the first pushing rod, and the second ear is hinged to the other end of the second pushing rod;

[0012] The frame-shaped limiting opening is fixedly arranged at the blasting hole opening. When the bottom of the fixing rod is pushed toward the frame-shaped limiting opening, the elastic steel ring of the sealing mechanism passes through the frame-shaped limiting opening to explode and seal the blasting hole opening.

[0013] Furthermore, grooves are provided on the opposite sides of the first opening and closing rod and the second opening and closing rod, and when the elastic steel ring is in the unfolded state, the first push rod enters the groove on the side of the first opening and closing rod, and the second push rod enters the groove on the side of the second opening and closing rod.

[0014] The advantages of the utility model are:

[0015] 1. The blasting hole can be closed by setting a closing structure. The opening and closing rod can be opened and the fixed rod can be moved by the push rod. The fixed rod can be used to push the closing structure to move, so as to synchronously drive the curtain to open and close the blasting hole. The opening range of the curtain is the diameter range of the blasting hole that can be closed.

[0016] 2. The high-quality support spring steel ring is bendable, has certain ductility and high quality, which can not only meet environmental protection requirements but also extend the service life;

[0017] 3. It has high safety, simple structure, convenient operation, strong applicability, high efficiency, and only requires a few workers to complete the operation, thereby reducing labor costs and being easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the closed state of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the frame-shaped limiting opening in the utility model.

[0021] Figure 3It is a schematic diagram of the frame-shaped limiting opening in the utility model facing the direction of the blasting hole.

[0022] Figure 4 It is a structural schematic diagram of the utility model in a pushing state.

[0023] Figure 5 It is a structural schematic diagram of the utility model in an unfolded state.

[0024] Reference numerals:

[0025] 1-frame-shaped limiting opening, 11-first fixing plate, 12-second fixing plate, 2-first opening and closing rod, 3-second opening and closing rod, 4-first pushing rod, 5-second pushing rod, 6-fixing rod, 61-first ear, 62-second ear, 7-trumpet-shaped curtain, 8-elastic steel ring. DETAILED DESCRIPTION

[0026] like Figures 1 to 5 As shown, a tunnel blasting hole sealing device comprises: a frame-shaped limit opening 1, an opening and closing mechanism, a pushing mechanism, and a sealing mechanism;

[0027] The opening and closing mechanism comprises: a first opening and closing rod 2 and a second opening and closing rod 3;

[0028] The pushing mechanism comprises: a first pushing rod 4, a second pushing rod 5 and a fixing rod 6;

[0029] The closing mechanism comprises: a trumpet-shaped curtain 7 and an elastic steel ring 8 fixed to the top edge of the trumpet-shaped curtain 7; the bottom of the trumpet-shaped curtain 7 is fixedly connected to a fixing rod 6;

[0030] A first fixing plate 11 and a second fixing plate 12 are respectively provided on both sides of the frame-shaped limit opening 1; the first fixing plate 11 is hinged to one end of the first opening and closing rod 2, and the second fixing plate 12 is hinged to one end of the second opening and closing rod 3; the other end of the first opening and closing rod 2 is hinged to one end of the first push rod 4, and the other end of the second opening and closing rod 3 is hinged to one end of the second push rod 4;

[0031] A first ear 61 and a second ear 62 are respectively provided on both sides of the bottom of the fixing rod 6; the first ear 61 is hinged to the other end of the first push rod 4, and the second ear 62 is hinged to the other end of the second push rod.

[0032] A groove 10 is provided on one side of the first opening and closing rod 2 and the second opening and closing rod 3 facing each other. When the elastic steel ring 8 is in the unfolded state, the first push rod 4 enters into the side groove 10 of the first opening and closing rod 2 , and the second push rod 5 enters into the side groove 10 of the second opening and closing rod 3 .

[0033] When in use, the frame-shaped limit opening 1 is fixedly set at the blasting hole opening, and when the bottom of the fixing rod 6 is pushed toward the frame-shaped limit opening 1 located at the blasting hole opening, the elastic steel ring 8 of the sealing mechanism passes through the frame-shaped limit opening 1 to explode and seal the blasting hole opening.

[0034] The utility model realizes the closure of the blasting hole by setting a closing structure, and can drive the opening and closing mechanism to open and the fixed rod to move through the pushing mechanism, and utilizes the fixed rod to push the closing mechanism to move, so as to synchronously drive the curtain to open, thereby realizing the closure of the blasting hole, and the unfolding range of the curtain is the diameter range of the blasting hole that can be closed; the high-quality supporting spring steel ring is bendable, has certain ductility and high quality, can not only meet the environmental protection requirements but also prolong the service life; it has high safety, simple structure, convenient operation, strong applicability, high efficiency, and only needs a small number of workers to complete the operation, thereby reducing labor costs and being easy to promote.

[0035] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A tunnel blasting hole sealing device, characterized in that: include: A frame-shaped limit opening, an opening and closing mechanism, a pushing mechanism, and a closing mechanism; The opening and closing mechanism comprises: a first opening and closing rod and a second opening and closing rod; The pushing mechanism comprises: a first pushing rod, a second pushing rod and a fixing rod; The closing mechanism comprises: a trumpet-shaped curtain and an elastic steel ring fixed to the top edge of the trumpet-shaped curtain; the bottom of the trumpet-shaped curtain is fixedly connected to the fixing rod; A first fixing plate and a second fixing plate are respectively provided on both sides of the frame-shaped limiting opening; the first fixing plate is hinged to one end of the first opening and closing rod, and the second fixing plate is hinged to one end of the second opening and closing rod; the other end of the first opening and closing rod is hinged to one end of the first pushing rod, and the other end of the second opening and closing rod is hinged to one end of the second pushing rod; A first ear and a second ear are respectively provided on both sides of the bottom of the fixing rod; the first ear is hinged to the other end of the first pushing rod, and the second ear is hinged to the other end of the second pushing rod; The frame-shaped limiting opening is fixedly arranged at the blasting hole opening. When the bottom of the fixing rod is pushed toward the frame-shaped limiting opening, the elastic steel ring of the sealing mechanism passes through the frame-shaped limiting opening to explode and seal the blasting hole opening.

2. A tunnel blasting hole sealing device as claimed in claim 1, characterized in that: The first opening and closing rod and the second opening and closing rod have grooves on their facing sides. When the elastic steel ring is in the unfolded state, the first push rod enters the groove on the side of the first opening and closing rod, and the second push rod enters the groove on the side of the second opening and closing rod.

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