Quick-opening manhole for sanitary equipment

Abstract

The utility model discloses a quick-opening manhole for sanitary equipment, and relates to the technical field of manholes, the quick-opening manhole comprises a manhole body and a cover body, a locking part comprises a clamping plate and an eyelet bolt seat, the tail end of the eyelet bolt seat is hinged with a clamping bolt, the tail end of the clamping plate is provided with a notch, and the top surface of the clamping plate is provided with a movable groove; through the arrangement of the reinforcing assembly, after the butterfly nut is rotated to abut against the clamping plate and lock the cover body, the positioning insertion block is slid to be aligned and inserted into the inner side of the annular positioning insertion groove, so that a mechanical limiting structure is formed through the embedded matching of the annular positioning insertion groove and the positioning insertion block; displacement of the butterfly nut on the clamping bolt is effectively limited, even under the extreme conditions of strong shock, high-frequency vibration of equipment and the like, the loosening risk of the butterfly nut can be remarkably reduced, stable locking force on the cover body is continuously kept, it is guaranteed that the sealing performance of the hole body is not affected, and the double-locking mechanism is stable and reliable. And the use safety and reliability of the manhole under special working conditions are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to manhole technical field, concretely relates to a fast -opening manhole for sanitary grade equipment. BACKGROUND

[0002] In the field of sanitary grade equipment, manhole as the channel connecting the inside of equipment and the outside world is an important part of guaranteeing normal operation of equipment, personnel maintenance and emergency treatment. It is usually installed on the top of equipment such as storage tank and reaction kettle, and needs not only to have safe emergency ventilation function, but also to meet strict sanitary standards to ensure that the internal environment of equipment is not polluted.

[0003] The utility model discloses a fast -opening manhole of patent announcement number CN217436674U, and the utility model discloses a fast -opening manhole, realizes the quick opening and closing of the cover body, and improves the operation convenience to a certain extent;

[0004] However, the fast -opening manhole does not fully consider the application demand under special and extreme working conditions when designing. In the strong vibration environment, the equipment will be subjected to severe vibration, and the butterfly nut, clamping bolt and other components of the existing fast -opening manhole may be loose or even fall off due to vibration, so that the cover body cannot be normally locked, and the sealing of the manhole is damaged, which not only affects the internal pressure balance of the equipment, but also may cause internal material leakage and safety accidents. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, a fast -opening manhole for sanitary grade equipment is provided to solve the problems in the background art of the prior art.

[0006] To achieve the above purpose, the utility model adopts the technical scheme that a fast -opening manhole for sanitary grade equipment, including hole body and the cover body that sets up on the hole body top open end, one side of the cover body is connected with the hole body articulated, the other side of the cover body is provided with the locking portion between the hole body, the locking portion includes the clamping plate fixed on the cover body periphery and the knuckle bolt seat fixed on the hole body cylinder wall, the end of the knuckle bolt seat is articulated with the clamping bolt, the end of the clamping plate is equipped with the notch, the end of the clamping bolt is vertically through the notch and is screwed with the butterfly nut, the butterfly nut is in close contact with the top surface of the clamping plate, the top surface of the clamping plate is provided with the movable slot, one side of the movable slot inside is provided with the reinforcing assembly for improving the firmness of the butterfly nut, the other side of the movable slot inside is provided with the positioning pressure piece.

[0007] Preferably, the reinforcing assembly includes a T-shaped movable block sliding in the movable slot and a positioning plug fixed to the top end of the T-shaped movable block in an inverted L shape, an annular positioning slot is formed in the outer wall of the butterfly nut, and the end of the positioning plug is inserted into the annular positioning slot.

[0008] Preferably, the positioning pressing piece comprises a pressing block detachably arranged in the movable slot, and two ends of the pressing block are respectively in abutment with the T-shaped movable block and the inner side wall of the movable slot.

[0009] Preferably, the bottom surface of the pressing block is elastically slid with a T-shaped sliding block, the bottom surface of the clamping plate is provided with a positioning opening, the bottom end of the T-shaped sliding block penetrates through the positioning opening and is fixed with a positioning lug in the shape of a right trapezoid, and the slope surface of the positioning lug is downwardly distributed.

[0010] Preferably, the bottom surface of the pressing block is provided with a T-shaped sliding slot matched with the T-shaped sliding block, and a spring is fixed between the T-shaped sliding block and the inner wall of one side of the T-shaped sliding slot.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] (1) through the setting of the reinforcing assembly, the knob butterfly nut is made to abut against the clamping plate, the locking cover is locked, then the positioning plug is slid and made to be aligned and inserted into the inner side of the annular positioning slot, so that the embedded cooperation of the annular positioning slot and the positioning plug forms a mechanical limiting structure, effectively limits the displacement of the butterfly nut on the clamping bolt, even under extreme conditions such as strong earthquake and high-frequency vibration of equipment, the risk of loosening of the butterfly nut can be significantly reduced, the stable locking force on the cover is continuously maintained, the sealing performance of the hole body is not affected, and this double locking mechanism greatly improves the use safety and reliability of the manhole under special working conditions.

[0013] (2) through the setting of the positioning pressing piece, after the positioning plug is inserted into the inner side of the annular positioning slot and the limiting effect on the butterfly nut is realized, the pressing block is arranged in the inner side of the movable slot, so that the T-shaped movable block is abutted by the pressing block, and the reinforcing effect on the T-shaped movable block and the positioning plug as a whole is realized. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is a clamping plate and clamping bolt connecting structure schematic view of the utility model;

[0016] Figure 3 It is a clamping plate bottom surface structure schematic view of the utility model;

[0017] Figure 4 It is a movable slot internal structure schematic view of the utility model.

[0018] The figure mark is:

[0019] 1, hole body; 2, cover body; 3, clamping plate; 4, hinge bolt seat; 5, clamping bolt; 6, wing nut; 7, movable groove; 8, T-shaped movable block; 9, positioning plug; 10, annular positioning slot; 11, pressing block; 12, positioning lug; 13, T-shaped slider; 14, positioning port. DETAILED DESCRIPTION

[0020] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art.

[0021] Referring to Figures 1-4 As shown in the figure, a quick-opening manhole for sanitary equipment comprises a hole body 1 and a cover body 2 arranged on the top open end of the hole body 1, one side of the cover body 2 is hingedly connected with the hole body 1, and a locking part is arranged between the other side of the cover body 2 and the hole body 1;

[0022] The locking part comprises a clamping plate 3 fixed on the outer periphery of the cover body 2 and a hinge bolt seat 4 fixed on the cylinder wall of the hole body 1, the end of the hinge bolt seat 4 is hingedly connected with a clamping bolt 5, the end of the clamping plate 3 is provided with a notch, the end of the clamping bolt 5 vertically penetrates the notch and is threadedly connected with a wing nut 6, and the wing nut 6 abuts against the top surface of the clamping plate 3;

[0023] When the hole body 1 top is closed, the clamping bolt 5 is upwardly deflected so as to be turned into the notch of the clamping plate 3, and then the wing nut 6 is rotated, so that the wing nut 6 slides along the rod body of the clamping bolt 5 under the threaded structure until abutting against the clamping plate 3, thereby effectively locking the cover body 2 and ensuring the stability of the cover body 2 on the open end of the hole body 1.

[0024] Further, referring to Figures 2-4 It is worth noting that the top surface of the clamping plate 3 is provided with a movable groove 7, and a reinforcing assembly for improving the firmness of the wing nut 6 is arranged on one side inside the movable groove 7;

[0025] The reinforcing assembly comprises a T-shaped movable block 8 sliding in the movable groove 7 and a positioning plug 9 fixed in an inverted L shape on the top end of the T-shaped movable block 8, the outer wall of the wing nut 6 is provided with an annular positioning slot 10, and the end of the positioning plug 9 penetrates into the annular positioning slot 10;

[0026] By setting the reinforcing assembly, the knob butterfly nut 6 is made to abut against the clamping plate 3, the locking cover 2 is locked, then the sliding positioning plug 9 is slid to be aligned with the inside of the annular positioning slot 10, so that the annular positioning slot 10 and the positioning plug 9 are embedded to form a mechanical limiting structure, which effectively limits the displacement of the butterfly nut 6 on the clamping bolt 5, even under extreme conditions such as strong earthquake and high-frequency vibration of the equipment, the loosening risk of the butterfly nut 6 can be significantly reduced, the stable locking force on the cover 2 is continuously maintained, and the sealing performance of the hole body 1 is not affected, and the double locking mechanism greatly improves the safety and reliability of the manhole under special working conditions.

[0027] Further, referring to Figure 4 It is worth noting that the other side of the movable groove 7 is provided with a positioning pressing piece;

[0028] The positioning pressing piece comprises a pressing block 11 detachably arranged in the movable groove 7, and the two ends of the pressing block 11 are respectively abutted against the inside wall of the T-shaped movable block 8 and the movable groove 7;

[0029] After the positioning plug 9 is inserted into the inside of the annular positioning slot 10 to limit the butterfly nut 6, the pressing block 11 is then arranged in the inside of the movable groove 7, so that the T-shaped movable block 8 is abutted against the pressing block 11, and the reinforcing effect of the T-shaped movable block 8 and the positioning plug 9 as a whole is achieved.

[0030] Further, referring to Figure 3 and Figure 4 It is worth noting that the bottom surface of the pressing block 11 is elastically slid with a T-shaped sliding block 13, the bottom surface of the clamping plate 3 is provided with a positioning opening 14, the bottom end of the T-shaped sliding block 13 penetrates through the positioning opening 14 and is fixed with a positioning lug 12 in the shape of a right trapezoid, and the inclined surface of the positioning lug 12 is downwardly distributed;

[0031] The bottom surface of the pressing block 11 is provided with a T-shaped sliding groove matched with the T-shaped sliding block 13, and a spring is fixed between the T-shaped sliding block 13 and the inner wall of one side of the T-shaped sliding groove;

[0032] When the pressing block 11 is arranged in the inside of the movable groove 7, the positioning lug 12 in the shape of a right trapezoid is aligned with the positioning opening 14, the inclined surface thereof is abutted against the opening inner wall of the positioning opening 14 in advance, and then is squeezed to slide to one side and act on the compression spring of the T-shaped sliding block 13 to deform, so that the elastic force of the spring is utilized, when the positioning lug 12 penetrates through the positioning opening 14, the T-shaped sliding block 13 can quickly reset and slide under the elastic force of the spring to abut against the bottom surface of the clamping plate 3, so that the pressing block 11 is self-locked;

[0033] Conversely, only by sliding the positioning lug 12 to the position corresponding to the positioning opening 14, the positioning effect of the pressing block 11 in the movable groove 7 is released, and the pressing block 11 is conveniently removed manually.

[0034] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A quick-opening manhole for sanitary equipment, comprising a hole body (1) and a cover body (2) arranged on the top open end of the hole body (1), one side of the cover body (2) being hingedly connected to the hole body (1), and a locking portion being arranged between the other side of the cover body (2) and the hole body (1), characterized in that, The locking part comprises a clamping plate (3) fixed on the outer periphery of the cover (2) and a hinge bolt base (4) fixed on the cylinder wall of the hole body (1), the end of the hinge bolt base (4) is hinged with a clamping bolt (5), the end of the clamping plate (3) is provided with a notch, the end of the clamping bolt (5) vertically penetrates the notch and is threadedly connected with a wing nut (6), the wing nut (6) abuts against the top surface of the clamping plate (3), the top surface of the clamping plate (3) is provided with a movable groove (7), one side of the inside of the movable groove (7) is provided with a reinforcing assembly for improving the firmness of the wing nut (6), and the other side of the inside of the movable groove (7) is provided with a positioning abutting piece.

2. A quick-opening manhole for sanitary grade equipment as defined in claim 1, wherein The reinforcing assembly comprises a T-shaped movable block (8) sliding in the movable groove (7) and a positioning plug (9) fixed in an inverted L shape at the top end of the T-shaped movable block (8), and the outer wall of the wing nut (6) is provided with an annular positioning plug groove (10), and the end of the positioning plug (9) penetrates into the annular positioning plug groove (10).

3. A quick-opening manhole for sanitary grade equipment as defined in claim 2 wherein, The positioning abutting piece comprises an abutting block (11) detachably arranged in the movable groove (7), and the two ends of the abutting block (11) abut against the T-shaped movable block (8) and the inner side wall of the movable groove (7) respectively.

4. A quick-opening manhole for sanitary grade equipment as defined in claim 3 wherein, The bottom surface of the abutting block (11) elastically slides a T-shaped sliding block (13), the bottom surface of the clamping plate (3) is provided with a positioning opening (14), the bottom end of the T-shaped sliding block (13) penetrates through the positioning opening (14) and is fixed with a positioning lug (12) in a right trapezoidal shape, and the slope surface of the positioning lug (12) is downwardly distributed.

5. A quick-opening manhole for sanitary grade equipment as defined in claim 4 wherein, The bottom surface of the abutting block (11) is provided with a T-shaped sliding slot matched with the T-shaped sliding block (13), and a spring is fixed between the T-shaped sliding block (13) and the inner wall on one side of the T-shaped sliding slot.

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