Double-lock manhole isolation door for limited space and machining device of double-lock manhole isolation door

Abstract

The invention discloses a double-lock manhole isolation door for a limited space and a machining device of the double-lock manhole isolation door, and belongs to the technical field of isolation doors. Comprising a door body composed of an outer ring and a middle net, and an annular base matched with the door body. The annular base and the door body are correspondingly provided with at least two groups of lock noses and through holes; in the installation state, the lock nose penetrates through the through hole to the outer side of the door body, and a padlock installation position is formed. According to the invention, a unique structure is designed for manhole plugging and isolation in a limited space; when the door is opened, authorization and agreement of at least two persons are needed, effective safety control is fully guaranteed, and reliable access control measures for the limited space are formed; an operation safety notification board is arranged to remind personnel to pay attention to the limited space; a baffle can be selectively matched to seal the manhole, so that different environmental requirements are met; the door body is separated from the door body, so that the door body and the door body are convenient to open and close; and by arranging the positioning block, rapid positioning and insertion are achieved, and the stability of the installation state can be better kept.

Description

Technical Field

[0001] The invention relates to the technical field of isolation doors, in particular to a double-lock manhole isolation door used in a limited space and a processing device thereof. Background Art

[0002] The safety protection of confined spaces has always been a concern, and accidents are often serious, which is the focus of risk management for various companies. For example, when performing internal operations on tanks, pipes, etc., personnel need to enter the internal space through manholes. In order to avoid people from entering by mistake, a blockage is usually set. However, this form cannot effectively prevent unauthorized entry, or only one door lock is set, and the safety control effect is poor. In addition, it cannot form an effective warning, there is a risk of accidental entry, and there are some deficiencies and inconveniences in use as a whole. Therefore, in view of the above situation, it is urgent to develop a double-lock manhole isolation door for confined spaces to overcome the shortcomings in current practical applications. Summary of the invention

[0003] The present invention provides a double-lock manhole isolation door for limited space and a processing device thereof, which are used to solve at least one of the technical problems raised by the above background technology.

[0004] In order to solve the above technical problems, the present invention discloses a double-lock manhole isolation door for limited space, comprising: a door body composed of an outer ring and a middle net, and an annular base matched with the door body;

[0005] At least two groups of lock noses and through holes are correspondingly arranged on the annular base and the door body;

[0006] In the installed state, the lock nose passes through the through hole to the outside of the door body to form a padlock installation position.

[0007] In some embodiments, two locking noses and through holes are symmetrically arranged, or multiple locking noses and through holes are arranged around.

[0008] In some embodiments, an operation safety notice board is provided on the outer side of the central grille.

[0009] In some embodiments, a rubber ring is provided between the annular base and the door body.

[0010] In some embodiments, the front end of the annular base is provided with two layers of concentrically arranged inner and outer retaining rings;

[0011] The rubber ring is arranged between the inner retaining ring and the outer retaining ring;

[0012] An adhesive layer is arranged at the rear end of the rubber ring and adhered to the annular base.

[0013] In some embodiments, the inner diameter of the inner retaining ring is greater than the inner diameter of the annular base;

[0014] The inner side of the inner retaining ring cooperates with the front side of the annular base to form a clamping position;

[0015] A baffle for blocking the manhole is placed in the clamping position.

[0016] In some embodiments, at least three positioning blocks adapted to the inner wall of the manhole are arranged around the inner end of the baffle.

[0017] In some embodiments, the front end of the positioning block is configured as an arc chamfer.

[0018] In some embodiments, the front end of the baffle is provided with a hand-held rod corresponding to the mesh holes of the middle net and extending outward.

[0019] In some embodiments, a plurality of bolts are also installed on the annular base and the door body.

[0020] A double-lock manhole isolation door processing device for limited space, the processing device comprising: a drive motor 1, the fixed end of the drive motor 1 is fixedly installed on the inner wall of the right end of a processing box, and the output end of the drive motor 1 is fixedly connected to one end of a threaded rod 1, the other end of the threaded rod 1 is rotatably connected to the inner wall of the left end of the processing box, and a slider 1 is threadedly connected to the threaded rod 1, one end of a slide rod is fixedly installed on the top of the slider 1, the top of the slide rod is slidably connected to the left and right in a slide groove 1 provided at the top of the processing box, and a processing mechanism is provided at the bottom end of the slider 1.

[0021] In some embodiments, the processing mechanism includes: a slide rail, the slide rail is fixedly mounted on the bottom end of a slider, a rack is slidably connected to the slide rail, the top end of a fixed rod is fixedly mounted on the bottom right end of the slider, the bottom end of the fixed rod is fixedly mounted with a fixed end of a drive motor 2, the output end of the drive motor 2 is fixedly connected to a gear, the gear is meshed with the rack, the drive motor 3 is fixedly mounted on the bottom end of the rack, and the output end of the drive motor 3 is fixedly connected to a milling cutter, the drive motor 4 is fixedly mounted on the inner wall of the bottom end of the processing box, and a turntable is fixedly mounted on the output end of the drive motor 4, a baffle 1 is fixedly mounted on the left end of the turntable, a slide groove 2 is provided on the right end of the turntable, the fixed end of the electric telescopic rod is fixedly mounted on the inner wall of the right end of the slide groove 2, and a baffle 2 is fixedly mounted on the output end of the electric telescopic rod, the baffle 2 is slidably connected to the inner wall of the slide groove 2 left and right, and a mold to be processed is placed between the baffle 1 and the baffle 2, and the drive motor 4 is connected to two sets of cooling and cleaning mechanisms through a belt assembly.

[0022] In some embodiments, the cooling and cleaning mechanism at the right end includes: threaded rod two, the bottom end of threaded rod two is rotatably connected to the inner wall of the bottom end of the processing box, and the top end of threaded rod two is threadedly connected to the threaded sleeve, the top end of threaded rod passes through the pressurizing box and is fixedly connected to the piston, the piston slides up and down and is connected to the inner wall of the pressurizing box, and the pressurizing box is fixedly installed on the inner wall of the processing box, one end of connecting pipe one is connected to the pressurizing box, the other end of connecting pipe one is connected to the nozzle, and a reverse flow valve one is fixedly installed in connecting pipe one, one end of connecting pipe two is connected to the pressurizing box, the other end of connecting pipe two is connected to the water delivery device, and a reverse flow valve two is fixedly installed in connecting pipe two.

[0023] Compared with the prior art, the present invention provides a double-lock manhole isolation door for limited space, which has the following beneficial effects:

[0024] 1. The unique structure of the present invention is used for manhole blocking and isolation in limited space; the door body composed of an outer ring and a middle net significantly reduces the overall weight and is more convenient to use; when opening, it requires the authorization and consent of at least two people, fully ensuring effective safety control and forming a reliable access control measure for limited space; an operation safety notice board is set to remind personnel that this is a limited space;

[0025] 2. The present invention reduces the rigid contact between the annular base and the door body and reduces damage by setting a rubber ring; the inner retaining ring and the outer retaining ring are arranged concentrically to form a clamp, and the rubber ring is more stable and not easy to move or fall off; the rubber ring is attached by an adhesive layer, which is easy to install, and later replacement and maintenance are also extremely convenient;

[0026] 3. The present invention can be optionally equipped with a baffle to close the manhole to adapt to different environmental requirements; it is separated from the door body, and both are convenient to open and close; a positioning block is provided to achieve rapid positioning and insertion, and can better maintain the stability of the installation state;

[0027] Other advantages, objectives and features of the present invention will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the structure of the present invention.

[0030] Figure 2 It is a front view structural schematic diagram of the present invention.

[0031] Figure 3 It is a schematic diagram of the explosion state of the present invention.

[0032] Figure 4 This is a schematic diagram of the structure with the baffle installed.

[0033] Figure 5 This is a schematic diagram of the rear structure with the baffle installed.

[0034] Figure 6 This is a cross-sectional view of the baffle installed.

[0035] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0036] Figure 8 This is an exploded view of the ring base, rubber ring, and baffle.

[0037] Fig. 9 A cross-sectional view of the annular base.

[0038] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure at point B in the middle.

[0039] Fig.11 Schematic diagram of the rear structure of the baffle.

[0040] Fig.12 This is a schematic diagram of the structure of the isolation door processing device.

[0041] In the figure:

[0042] 1. Outer ring; 2. Middle net; 3. Ring base; 31. Lock nose; 32. Inner retaining ring; 33. Outer retaining ring; 4. Operation safety notice board; 5. Rubber ring; 6. Baffle; 61. Positioning block; 62. Hand lever; 7. Bolt; 8. Drive motor 1; 9. Processing box; 10. Threaded rod 1; 11. Threaded rod 1; 12. Slide rod; 13. Slide groove 1; 14. Slide rail; 15. Rack; 16. Fixed rod 1; 17. Drive motor 2; 18. Gear; 19. Drive motor three; 20. Milling cutter; 21. Drive motor four; 22. Turntable; 23. Baffle one; 24. Slide two; 25. Electric telescopic rod; 26. Baffle two; 27. Mold to be processed; 28. Belt assembly; 29. ​​Threaded rod two; 30. Threaded sleeve; 34. Pressurizing box; 35. Piston; 36. Connecting pipe one; 37. Nozzle; 38. Backflow valve one; 39. Connecting pipe two; 40. Backflow valve two. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] The present invention provides the following embodiments

[0046] Example 1

[0047] The embodiment of the present invention provides a double-locked manhole isolation door for a limited space, referring to Figure 1-3 , a double-lock manhole isolation door for a limited space comprises a door body consisting of an outer ring 1, a middle net 2, and an annular base 3 matched with the door body.

[0048] like Figure 1 , 2 , 3; the annular base 3 is fixedly connected to the cylindrical end of the manhole; the inner hollow outer ring 1 forms the foundation of the door body and has good strength; the inner mesh 2 is fixedly welded to form a complete door body.

[0049] In addition, the door body with the above-mentioned combined structure can significantly reduce the overall weight and is more convenient to use.

[0050] It is understandable that the outer ring 1 is a metal ring, the middle net 2 is also made of metal (such as wire mesh), and the mesh holes do not need to be set very small, as long as they can form effective isolation for a specific environment.

[0051] At the same time, at least two groups of locking noses 31 and through holes are correspondingly arranged on the annular base 3 and the door body.

[0052] Thus, in the installed state, the lock nose 31 passes through the through hole to the outside of the door body, forming a padlock installation position.

[0053] Specifically, Figure 2 As shown; the locking nose 31 and the through hole are symmetrically arranged with two, or a plurality of them are arranged around.

[0054] Correspondingly, such as Figure 1 As shown; after the door body is placed in place, padlocks are installed at the padlock installation positions; and the key of each padlock is kept by a different person.

[0055] Therefore, the authorization and consent of at least two people are required when opening the door, which fully guarantees effective security control and forms a reliable confined space access control measure.

[0056] For example, the keys are held by the person in charge of the work and the guardian respectively. Both of them need to be present at the scene at the same time and unlock the door. Only then can the manhole be opened and the staff can enter the confined space.

[0057] In some embodiments, an operation safety notice board 4 is provided on the outer side of the center net 2 .

[0058] There is no restriction on the fixing method of the operation safety notice board 4; it can be simply tied to the middle net 2 with a cable tie, wire, etc.

[0059] It is understandable that the purpose of setting up the work safety notice board 4 is to effectively remind personnel that this is a limited space; it should use eye-catching colors (such as red, yellow), and display corresponding safety precautions, responsible persons, etc.

[0060] Example 2

[0061] On the basis of Example 1, a double-lock manhole isolation door for a limited space is described, wherein a rubber ring 5 is provided between the annular base 3 and the door body to reduce the rigid contact between the annular base 3 and the door body during opening and closing, thereby reducing damage.

[0062] Further, such as Figures 4 to 10 As shown; the front end of the annular base 3 is provided with two layers of concentrically arranged inner retaining rings 32 and outer retaining rings 33; the rubber ring 5 is arranged between the inner retaining ring 32 and the outer retaining ring 33; through the clamping of the two retaining rings, the rubber ring 5 is more stable and not easy to move or fall off.

[0063] It is understandable that the rubber ring 5 should protrude from the front ends of the inner stop ring 32 and the outer stop ring 33 ; when the door body is installed, the inner end of the door body contacts the rubber ring 5 but not the inner stop ring 32 and the outer stop ring 33 .

[0064] Furthermore, an adhesive layer is provided at the rear end of the rubber ring 5 and attached to the annular base 3; the installation is convenient, and the subsequent replacement and maintenance are also extremely convenient.

[0065] Example 3

[0066] On the basis of Examples 1-2, a double-lock manhole isolation door for a limited space is provided, wherein the inner diameter of the inner retaining ring 32 is larger than the inner diameter of the annular base 3; thus, the inner side of the inner retaining ring 32 cooperates with the front side of the annular base 3 to form a snap-in position; at the same time, a baffle 6 for blocking the manhole is placed in the snap-in position.

[0067] It is understandable that in the above-described embodiment, in order to reduce the weight of the door body, a middle grille is used, which cannot completely seal the manhole. However, in some environments, it is necessary to completely seal the manhole in a limited space; therefore, an optional baffle structure is specially designed.

[0068] like Figures 4 to 8 As shown; the inner end of the baffle 6 is blocked by the annular base 3, and the outer edge is blocked by the inner baffle ring 32, forming a card-fitted form to close the manhole; and, the baffle 6 and the door body are separated, and both are convenient to open and close.

[0069] Furthermore, at least three positioning blocks 61 adapted to the inner wall of the manhole are disposed around the inner end of the baffle 6 .

[0070] like Figure 5 , 8 , as shown in 11; through the setting of the positioning block 61, rapid positioning and insertion can be achieved, and the stability of the installation state can be better maintained.

[0071] Furthermore, the front end of the positioning block 61 is configured as an arc chamfer.

[0072] like Figure 5 , 11 As shown; during insertion, the arc guide reduces collision and damage.

[0073] Furthermore, a hand-held rod 62 is provided at the front end of the baffle 6 and corresponds to the mesh of the middle net 2 and extends outward, so as to facilitate the application of force and operation of the baffle 6 .

[0074] Furthermore, a flat round head is provided at the end of the handle bar 62, which makes it easier to hold.

[0075] It can be understood that the size of the flat round head should be able to pass through the mesh of the middle net 2.

[0076] Example 4

[0077] On the basis of the embodiments 1-3, a plurality of bolts 7 are further installed on the annular base 3 and the door body, such as Figure 4 As shown, bolts 7 are used to strengthen the installation, fixation and stability of the door body.

[0078] In the present invention, a uniquely designed structure is used for sealing and isolating manholes in limited spaces to achieve control; the door body composed of an outer ring 1 and a middle net 2 significantly reduces the overall weight and is more convenient to use; the authorization and consent of at least two people are required when opening, fully ensuring effective safety control and forming a reliable control measure for access to and exiting limited spaces; an operation safety notice board 4 is set to remind personnel that this is a limited space to avoid mistaken entry and pay attention to safety; a rubber ring 5 is set to reduce the rigid contact between the annular base 3 and the door body and reduce damage; the inner retaining ring 32 and the outer retaining ring 33 are concentrically arranged to form a clamp, and the rubber ring 5 is more stable and not easy to move or fall off; the rubber ring 5 is attached by an adhesive layer, which is easy to install, and later replacement and maintenance are also extremely convenient; a baffle 6 can be optionally matched to close the manhole to adapt to different environmental requirements; it is separated from the door body, and both are convenient to open and close; a positioning block 61 is set to achieve rapid positioning and insertion, and can better maintain the stability of the installation state.

[0079] Example 5

[0080] On the basis of Embodiments 1-4, the double-locked manhole isolation door for a limited space is characterized in that a multifunctional alarm system is also provided on the surface of the operation safety notice board 4, and the multifunctional alarm system includes:

[0081] Environmental monitoring module: The environmental monitoring module includes: temperature and humidity sensors, oxygen concentration sensors, harmful gas concentration sensors and smoke sensors, which are used to monitor the environmental parameters in a limited space in real time, such as temperature, humidity, oxygen concentration, and harmful gas concentration (such as CO, H2S, etc.). When the environmental parameters exceed the preset safety threshold, an alarm is automatically triggered;

[0082] Intrusion detection module: It uses infrared sensors, microwave sensors and cameras to monitor intrusions near the double-locked manhole isolation door in a confined space in real time. Once an unauthorized person attempts to enter the confined space, an alarm is triggered immediately;

[0083] Emergency alarm module: The emergency alarm module includes: a manual alarm button and an audible and visual alarm. In an emergency, the operator can press the manual alarm button to trigger the audible and visual alarm and start other functions of the alarm system at the same time;

[0084] Remote notification module: establishes a connection with a remote terminal (such as a mobile phone, computer, etc.) through a wireless network (such as Wi-Fi, 4G / 5G, etc.). When an alarm is triggered, it automatically sends an alarm message to the remote terminal. The alarm message includes: alarm type, time, location, and environmental parameters, so that management personnel can take timely response measures;

[0085] Intelligent analysis module: uses artificial intelligence algorithms to perform intelligent analysis on monitoring data to improve the accuracy and reliability of alarms. For example, potential safety hazards can be predicted through data analysis, or alarm thresholds can be optimized based on historical data;

[0086] Power management module: Provides stable power supply through battery power and AC power supply. In the event of power outage, the battery can continue to supply power to ensure the normal operation of the device.

[0087] Furthermore, the multifunctional alarm system also includes:

[0088] Central control unit: receives alarm information from intelligent multi-functional alarm devices, conducts comprehensive analysis, and makes corresponding processing decisions;

[0089] Display and operation interface: Provides an intuitive display interface to display alarm information and environmental parameters. At the same time, it provides an operation interface that allows managers to manually trigger alarms and adjust alarm thresholds.

[0090] Emergency response module: According to the processing decision of the central control unit, initiate corresponding emergency response measures, such as starting the exhaust system, cutting off the power supply, etc., to reduce or eliminate safety hazards;

[0091] History record and data analysis module: records alarm events and historical data of environmental parameters, provides data analysis functions, helps managers understand the safety status of confined spaces, and optimizes safety management measures.

[0092] The beneficial effects of the above technical solution are:

[0093] Improve safety: Through real-time monitoring of environmental parameters and intrusion behaviors in confined spaces, as well as the manual alarm function in emergency situations, potential safety hazards can be discovered and dealt with in a timely manner, thus improving the safety of confined space working environments;

[0094] Quick response: When an alarm is triggered, the remote notification module will automatically send an alarm message to the preset remote terminal, allowing managers to quickly understand the safety status in the limited space and take appropriate countermeasures;

[0095] Intelligent analysis: The intelligent analysis module uses artificial intelligence algorithms to perform intelligent analysis on monitoring data, which can improve the accuracy and reliability of alarms and reduce false alarms and missed alarms;

[0096] Comprehensive monitoring: This technical solution covers multiple aspects such as environmental monitoring, intrusion detection, emergency alarm, remote notification, intelligent analysis, emergency response, etc., realizing comprehensive monitoring and protection of confined space environment;

[0097] Easy to operate: The display and operation interface provides an intuitive display interface and operation interface, allowing managers to easily view real-time data, manually trigger alarms, adjust alarm thresholds, etc.

[0098] Example 6

[0099] On the basis of Examples 1-5, a double-lock manhole isolation door processing device for a limited space, the processing device comprising: a driving motor 8, the fixed end of the driving motor 8 is fixedly mounted on the inner wall of the right end of a processing box 9, and the output end of the driving motor 8 is fixedly connected to one end of a threaded rod 10, the other end of the threaded rod 10 is rotatably connected to the inner wall of the left end of the processing box 9, and a slider 11 is threadedly connected to the threaded rod 10, one end of a slide rod 12 is fixedly mounted on the top of the slider 11, the top of the slide rod 12 is slidably connected left and right in a slide groove 13 provided at the top of the processing box 9, and a processing mechanism is provided at the bottom of the slider 11.

[0100] Furthermore, the processing mechanism includes: a slide rail 14, the slide rail 14 is fixedly mounted at the bottom end of the slider 11, a rack 15 is slidably connected to the slide rail 14, a top end of a fixed rod 16 is fixedly mounted at the bottom end of the right side of the slider 11, a fixed end of a drive motor 2 17 is fixedly mounted at the bottom end of the fixed rod 16, an output end of the drive motor 2 17 is fixedly connected to a gear 18, the gear 18 is meshedly connected to the rack 15, a drive motor 3 19 is fixedly mounted at the bottom end of the rack 15, and an output end of the drive motor 3 19 is fixedly connected to a milling cutter 20, and a drive motor 4 21 is fixedly mounted on the processing A turntable 22 is fixedly mounted on the inner wall of the bottom end of the box 9, and a baffle 1 23 is fixedly mounted on the output end of the driving motor 4 21, a baffle 1 23 is fixedly mounted on the left end of the turntable 22, a slide 24 is arranged on the right end of the turntable 22, an electric telescopic rod 25 is fixedly mounted on the inner wall of the right end of the slide 24, and a baffle 26 is fixedly mounted on the output end of the electric telescopic rod 25, the baffle 26 is slidably connected to the inner wall of the slide 24 left and right, and a mold 27 to be processed is placed between the baffle 1 23 and the baffle 26, and the driving motor 4 21 is connected to two sets of cooling and cleaning mechanisms through a belt assembly 28.

[0101] Furthermore, the cooling and cleaning mechanism at the right end includes: a threaded rod 29, the bottom end of the threaded rod 29 is rotatably connected to the inner wall of the bottom end of the processing box 9, and the top end of the threaded rod 29 is threadedly connected to the threaded sleeve 30, the top end of the threaded rod 30 passes through the pressurizing box 34 and is fixedly connected to the piston 35, the piston 35 slides up and down and is connected to the inner wall of the pressurizing box 34, and the pressurizing box 34 is fixedly installed on the inner wall of the processing box 9, one end of a connecting pipe 36 is connected to the pressurizing box 34, the other end of the connecting pipe 36 is connected to the nozzle 37, and a reverse flow valve 38 is fixedly installed in the connecting pipe 36, one end of a connecting pipe 39 is connected to the pressurizing box 34, the other end of the connecting pipe 39 is connected to the water delivery device, and a reverse flow valve 40 is fixedly installed in the connecting pipe 39.

[0102] The working principle of the above technical solution is as follows: when the isolation door needs to be processed, the mold 27 to be processed is first placed on the top of the turntable 22, and then the electric telescopic rod 25 is started, and the electric telescopic rod 25 drives the baffle plate 26 to move closer to the left end, so that the mold 27 to be processed is effectively fixed, and then the driving motor 2 is started, and the driving motor 2 17 drives the gear 18 to rotate, and the rotation of the gear 18 drives the rack 15 meshing therewith to move downward, and the rack 15 moves downward to drive the driving motor 3 19 and the milling cutter 20 to move downward accordingly, and then the driving motor 3 19 is started, and the driving motor 3 19 drives the milling cutter 20 to rotate, so that the mold 27 to be processed is effectively processed, and at the same time, the driving motor 4 21 is started, and the driving motor 4 21 rotates to drive the turntable 22 fixedly connected thereto to rotate, and the driving motor 4 21 rotates while driving the belt assembly 28 connected thereto The threaded rod 29 rotates, and the threaded sleeve 30 threadedly connected thereto moves upward, so that the water in the pressurizing box 34 is sprayed onto the surface of the mold 27 to be processed through the connecting pipe 1 36 and the nozzle 37 under the action of the piston 35, thereby cleaning the debris on the surface of the mold 27 to be processed and effectively cooling the mold 27 to be processed. (After the mold 27 to be processed rotates one circle, the driving motor 4 21 reverses, so that the water in the water delivery device connected to the connecting pipe 2 39 is transported to the pressurizing box 34 through the connecting pipe 2 39) When it is necessary to move the processing mechanism, by starting the driving motor 8, the driving motor 8 drives the threaded rod 10 to rotate, and the threaded rod 10 rotates to drive the threaded rod 11 threadedly connected thereto to move left and right, thereby driving the processing mechanism to move left and right, so as to effectively process the molds 27 to be processed at different positions.

[0103] The beneficial effects of the above technical scheme are as follows: by setting the drive motor 18 and the threaded rod 10, it is conducive to the left and right movement of the processing mechanism, so as to effectively process the molds 27 to be processed at different positions; by setting the gear 18 and the rack 15, it is conducive to the adjustment of the up and down positions of the drive motor 3 19 and the milling cutter 20; by setting the electric telescopic rod 25 and the baffle 26, it is conducive to the effective clamping and fixing of the mold 27 to be processed; by setting the drive motor 4 21 and the turntable 22, it is conducive to the steering of the mold 27 to be processed; by setting the cooling and cleaning mechanism, it is conducive to the effective cooling of the surface of the mold 27 to be processed, and at the same time, the debris in the processing process is effectively removed; by setting the backflow valve 1 38 and the backflow valve 2 40, it is conducive to preventing the liquid from flowing back; by setting the threaded rod 29 and the threaded sleeve 30, it is conducive to the up and down movement of the threaded sleeve 35, which is very convenient and practical.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-locked manhole isolation door for limited space, characterized in that: It comprises a door body consisting of an outer ring (1), a middle net (2), and an annular base (3) matched with the door body; The annular base (3) and the door body are provided with a plurality of groups of lock noses (31) and through holes matching therewith, and in the installed state, the lock noses (31) penetrate through the through holes to the outside of the door body to form a padlock installation position.

2. A double-locked manhole isolation door for limited space according to claim 1, characterized in that: The locking noses (31) and the through holes are symmetrically arranged with two of them.

3. A double-locked manhole isolation door for limited space according to claim 1, characterized in that: An operation safety notice board (4) is arranged on the outer side of the middle net (2), and a rubber ring (5) is arranged between the annular base (3) and the door body.

4. A double-locked manhole isolation door for limited space according to claim 3, characterized in that: The front end of the annular base (3) is provided with two layers of concentrically arranged inner retaining rings (32) and outer retaining rings (33); The rubber ring (5) is arranged between the inner retaining ring (32) and the outer retaining ring (33); The rear end of the rubber ring (5) is provided with an adhesive layer which is attached to the annular base (3).

5. A double-locked manhole isolation door for limited space according to claim 4, characterized in that: The inner diameter of the inner retaining ring (32) is greater than the inner diameter of the annular base (3); The inner side of the inner retaining ring (32) cooperates with the front side of the annular base (3) to form a clamping position; A baffle (6) for blocking the manhole is placed in the clamping position.

6. A double-locked manhole isolation door for limited space according to claim 5, characterized in that: A plurality of positioning blocks (61) adapted to the inner wall of the manhole are arranged around the inner end of the baffle (6), the front end of the positioning block (61) is arranged to be an arc chamfered, and a hand-held rod (62) corresponding to the mesh of the middle net (2) and extending outward is arranged at the front end of the baffle (6).

7. A double-locked manhole isolation door for limited space according to claim 1, characterized in that: A plurality of bolts (7) are also installed on the annular base (3) and the door body.

8. A double-lock manhole isolation door processing device for limited space, used for processing a double-lock manhole isolation door for limited space as claimed in any one of claims 1 to 7, characterized in that: The processing device comprises: a driving motor (8), the fixed end of the driving motor (8) is fixedly mounted on the inner wall of the right end of the processing box (9), and the output end of the driving motor (8) is fixedly connected to one end of a threaded rod (10), the other end of the threaded rod (10) is rotatably connected to the inner wall of the left end of the processing box (9), and a slider (11) is threadedly connected to the threaded rod (10), one end of a sliding rod (12) is fixedly mounted on the top of the sliding rod (11), the top of the sliding rod (12) is slidably connected to the left and right in a sliding groove (13) provided at the top of the processing box (9), and a processing mechanism is provided at the bottom of the sliding rod (11).

9. A double-lock manhole isolation door processing device for limited space according to claim 8, characterized in that: The processing mechanism comprises: a slide rail (14), the slide rail (14) is fixedly mounted on the bottom end of a slider (11), a rack (15) is slidably connected to the slide rail (14), a top end of a fixed rod (16) is fixedly mounted on the right bottom end of the slider (11), a fixed end of a drive motor (17) is fixedly mounted on the bottom end of the fixed rod (16), an output end of the drive motor (17) is fixedly connected to a gear (18), the gear (18) is meshingly connected to the rack (15), a drive motor (19) is fixedly mounted on the bottom end of the rack (15), and the output end of the drive motor (19) is fixedly connected to a milling cutter (20), and a drive motor (21) is fixedly mounted on a processing box (9 ) on the inner wall at the bottom end, and a turntable (22) is fixedly installed at the output end of the driving motor four (21), a baffle one (23) is fixedly installed at the left end of the turning disc (22), a slide groove two (24) is arranged at the right end of the turning disc (22), the fixed end of the electric telescopic rod (25) is fixedly installed on the inner wall at the right end of the slide groove two (24), and a baffle two (26) is fixedly installed at the output end of the electric telescopic rod (25), the baffle two (26) is slidably connected to the inner wall of the slide groove two (24) left and right, and a mold (27) to be processed is placed between the baffle one (23) and the baffle two (26), and the driving motor four (21) is connected to two groups of cooling and cleaning mechanisms through a belt assembly (28).

10. The double-lock manhole isolation door processing device for limited space according to claim 8, characterized in that: The cooling and cleaning mechanism at the right end comprises: a second threaded rod (29), the bottom end of the second threaded rod (29) is rotatably connected to the inner wall of the bottom end of the processing box (9), and the top end of the second threaded rod (29) is threadedly connected to the threaded sleeve (30), the top end of the threaded rod (30) passes through the pressurizing box (34) and is fixedly connected to the piston (35), the piston (35) is slidably connected to the inner wall of the pressurizing box (34), and the pressurizing box (34) is fixedly installed on the inner wall of the processing box (9), one end of a connecting pipe (36) is connected to the pressurizing box (34), the other end of the connecting pipe (36) is connected to the nozzle (37), and a reverse flow valve (38) is fixedly installed in the connecting pipe (36), one end of a connecting pipe (39) is connected to the pressurizing box (34), the other end of the connecting pipe (39) is connected to the water delivery device, and a reverse flow valve (40) is fixedly installed in the connecting pipe (39).

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