Quick-opening manhole and brewing apparatus

Abstract

The utility model provides a quick -opening manhole and brewing equipment, this quick -opening manhole includes manhole body, manhole cover and locking device. Manhole body is provided with first support and second support, is provided with rotating part at first support; Manhole cover is equipped with connecting rod, and the first end of connecting rod is rotatably connected with rotating part, and the first end of connecting rod can slide along rotating part; Locking device includes U type ring and hand wheel. U type ring is arranged at the second end of connecting rod, and the end face of the one end of U type ring away from manhole body is outwardly provided with preset inclination; The end face of one end of hand wheel near manhole body matches with the end face of one end of U type ring away from manhole body, and the bottom of hand wheel is screwed into U type ring and is connected with second support, and the end face of one end of hand wheel near manhole body is locked with the bottom of hand wheel and second support, and the contact area of hand wheel and U type ring gradually increases. Through above-mentioned mode, can reduce the production difficulty of locking device greatly, simplify the process complexity, save the production cost of manhole, and be convenient for production.

Description

Technical Field

[0001] This utility model relates to the field of manhole technology, specifically a quick-opening manhole and brewing equipment. Background Technology

[0002] Manholes are widely used in the chemical, pharmaceutical, petroleum, and food processing industries for personnel access, installation, maintenance, and inspection, ensuring smooth production processes and safe equipment operation.

[0003] Currently, manholes used in the automation of brewing equipment in the food industry are mainly used for equipment cleaning, dynamic observation of the production process, and equipment maintenance and inspection.

[0004] The commonly used manhole specifications generally have the following problems.

[0005] The first type is that the locking device of the manhole usually adopts a spherical fit on the mating surface. That is, the handwheel of the locking device is machined into a spherical surface at the end, and the corresponding U-shaped ring also needs to be machined into a spherical surface at the end, which increases the difficulty of manufacturing the locking device and increases the manufacturing cost.

[0006] The second type of locking device often uses a single locking point, which requires a large manual locking force. Furthermore, the linkage assembly of the manhole cover lacks an elastic anti-loosening device at the rotating hinge end. Therefore, uneven force is easily applied to the sealing strip during locking, resulting in unreliable sealing. Utility Model Content

[0007] To address the above problems, this utility model provides a quick-opening manhole (hereinafter referred to as manhole) and brewing equipment to solve the problem of high manufacturing difficulty of the locking device of the manhole in the prior art.

[0008] The first aspect of this utility model provides a quick-opening manhole, including a manhole body, a manhole cover, and a locking device. The manhole body has a first support and a second support extending outwards from opposite sidewalls, with a rotating component at the first support. The manhole cover matches the manhole body and has a connecting rod with a first end and a second end along its length. The first end of the connecting rod is rotatably connected to the rotating component and can slide along the rotating component. The locking device includes a U-shaped ring and a handwheel. The U-shaped ring is located at the second end of the connecting rod, and the end of the U-shaped ring away from the manhole body has a preset slope. The handwheel corresponds to the U-shaped ring, with the end face of the handwheel near the manhole body matching the end face of the U-shaped ring away from the manhole body. The bottom of the handwheel passes through the U-shaped ring and is threaded to the second support. The end face of the handwheel near the manhole body is configured such that the contact area gradually increases as it locks with the U-shaped ring.

[0009] In this manner, the locking device for the manhole utilizes a beveled fit between the U-shaped ring and the handwheel. As the handwheel is pressed down towards the manhole body, the contact area between the two mating surfaces of the U-shaped ring and the handwheel gradually increases, causing the end of the connecting rod near the rotating component to slide upwards, thus achieving locking. Compared to the spherical fit in existing locking devices, the beveled fit significantly reduces the manufacturing difficulty of the locking device, simplifies the process complexity, saves on manhole manufacturing costs, and facilitates production.

[0010] Optionally, the locking device further includes a locking seat connected to the second support. The handwheel includes a handle and a union bolt. The bottom of the handle is provided with a movable groove. The end face of the handle near the manhole body matches the end face of the U-shaped ring away from the manhole body. The union bolt is located at the bottom of the handle and passes through the movable groove to connect with the handle. The end of the union bolt away from the handle passes through the U-shaped ring to connect with the locking seat.

[0011] By matching the end face of the handle with the U-shaped ring in the above manner, the manhole can be pre-locked, ensuring relative stability between the handle and the U-shaped ring. By turning the handle, the live bolt at the bottom of the handle passes through the U-shaped ring and locks with the locking seat, realizing the automatic locking of the locking device.

[0012] Optionally, the rotating component includes a rotating shaft and a connecting shaft. The rotating shaft is connected to the first support, and the first end of the connecting rod is rotatably connected to the rotating shaft. The two ends of the connecting shaft in the length direction are a first end and a second end, respectively. The rotating shaft is connected to the first end of the connecting shaft, and the first end of the connecting rod is slidably connected to the second end of the connecting shaft.

[0013] By using the above method, a rotating shaft and a connecting shaft are set up to be interconnected. The connecting rod connected to the connecting shaft can drive the manhole cover to rotate relative to the manhole body, facilitating the opening / closing operation of the manhole cover. At the same time, the connecting rod can slide up and down on the connecting shaft. When the locking device is engaged, the connecting rod slides outward relative to the manhole body, ensuring that the connecting rod is evenly stressed when locked.

[0014] Optionally, the connecting shaft is connected to the first end of the connecting rod via a cap nut, and a preset gap is provided between the first end of the connecting rod and the cap nut.

[0015] In this way, the connecting rod can slide within a preset gap, and the cap nut can limit the sliding position of the connecting rod, which facilitates a stable connection between the connecting shaft and the connecting rod.

[0016] Optionally, an elastic element is sleeved on the outside of the connecting shaft, the elastic element being disposed near the first end of the connecting rod, and / or, the elastic element being disposed near the rotating shaft.

[0017] In this way, when the locking device at the second end of the connecting rod is locked, the elastic element can apply elastic force to the first end of the connecting rod, which can play the role of elastic anti-loosening and ensure that the force on the entire connecting rod is uniform.

[0018] Optionally, a limiting element is provided in the middle of the manhole cover, and the limiting element is connected to the connecting rod by bolts.

[0019] In this way, the connecting rod can transfer the force it receives during the locking operation to the manhole cover through the limiting component, thereby ensuring that the manhole cover is subjected to uniform force.

[0020] Optionally, a viewing mirror is provided in the center of the manhole cover.

[0021] Using the above methods, operators can observe the internal condition of the equipment connected to the manhole through the sight glass, facilitating equipment inspection.

[0022] Optionally, a sealing strip is provided at the connection between the manhole cover and the manhole body.

[0023] The above methods ensure the overall sealing of the manhole.

[0024] Optionally, there may be multiple links.

[0025] By setting multiple connecting rods in the above manner, and correspondingly multiple locking devices on the connecting rods, it is beneficial to ensure that the manhole cover is subjected to uniform force at multiple positions. In addition, multiple locking devices make the preload between multiple live bolts and corresponding multiple locking seats more reliable during the locking operation.

[0026] The second aspect of this utility model provides a brewing device, including the above-mentioned quick-opening manhole, with one end of the manhole body away from the manhole cover connected to the brewing device.

[0027] By using the above methods, quick-opening manholes with inclined surfaces are installed on brewing equipment, reducing the inspection and maintenance costs of the brewing equipment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the first structure of the quick-opening manhole in this embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the U-shaped ring and handwheel in an embodiment of this utility model.

[0030] Figure 3 This is a schematic diagram of the upper plane of the U-shaped ring and the lower plane of the handwheel in an embodiment of this utility model.

[0031] Figure 4 This is a schematic diagram of the second structure of the quick-opening manhole in this embodiment of the present invention.

[0032] Figure label: 100. Quick-opening manhole; 1. Manhole body; 11. First support; 12. Second support; 13. Rotating component; 131. Rotating shaft; 132. Connecting shaft; 133. Cap nut; 134. Elastic component; 2. Manhole cover; 21. Connecting rod; 22. Limiting element; 23. Sight glass; 24. Sealing strip; 3. Locking device; 31. U-ring; 32. Handwheel; 321. Handle; 322. Union bolt; 323. Movable groove; 33. Locking seat. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] <Quick-opening manhole 100> Figure 1 This is a first structural schematic diagram of the quick-opening manhole 100 in this embodiment of the present utility model. Figure 2 This is a schematic diagram of the U-shaped ring and handwheel in an embodiment of this utility model. (Reference) Figure 1 and Figure 2 The first embodiment of this utility model provides a quick-opening manhole 100, including a manhole body 1 and a manhole cover 2 that match each other, and a locking device 3. The locking device 3 is correspondingly arranged with the connecting rod 21 and can lock the manhole cover 2 onto the manhole body 1.

[0035] The two opposite sidewalls of the manhole body 1 (e.g.) Figure 1 A first support 11 and a second support 12 extend outward from the left and right sides of the manhole body 1, respectively. A rotating member 13 is provided at the first support 11 on the left side, which can support the rotation of the manhole cover 2 relative to the manhole body 1. The surface of the manhole cover 2 away from the manhole body 1 (i.e., Figure 1 A connecting rod 21 is provided on the upper surface of the manhole cover 2. That is, the connecting rod 21 is located on the outer wall of the manhole cover 2. The two ends of the connecting rod 21 along the length direction are the first end and the second end, respectively. The first end of the connecting rod 21 (i.e. Figure 1 The left end of the connecting rod 21 is rotatably connected to the rotating part 13 on the first support 11, and the left end of the connecting rod 21 can slide along the rotating part 13. The locking device 3 is located at the second end of the connecting rod 21 (i.e., Figure 1 (At the right end of the middle connecting rod 21).

[0036] Specifically, the locking device 3 includes a U-shaped ring 31 and a handwheel 32. The U-shaped ring 31 is located at the right end of the connecting rod 21, and the end face of the U-shaped ring 31 furthest from the manhole body 1 (i.e., Figure 1 The upper surface of the U-shaped ring 31 is provided with a preset slope; the end face of the handwheel 32 near the manhole body 1 (i.e., Figure 1 The lower surface of the handwheel 32 matches the upper surface of the U-ring 31, and the bottom of the handwheel 32 can pass through the groove of the U-ring 31 and be threadedly connected to the second support 12 below the U-ring 31. As the lower surface of the handwheel 32 is locked with the U-ring 31, the contact area of ​​the two matching surfaces gradually increases. That is to say, during the process of the bottom of the handwheel 32 being threadedly locked with the second support 12, the U-ring 31 located at the right end of the connecting rod 21 moves downward under the pressure of the handwheel 32, and the lower surface of the handwheel 32 and the upper surface of the U-ring 31 change from line contact to surface contact, and the contact area gradually increases. At the same time, the left end of the connecting rod 21 slides upward along the rotating part 13 to keep the connecting rod 21 stable as a whole.

[0037] In this way, the locking device 3 on the manhole uses a beveled fit between the U-shaped ring 31 and the handwheel 32. As the handwheel 32 is pressed down toward the manhole body 1, the contact area between the two mating surfaces of the U-shaped ring 31 and the handwheel 32 gradually increases, and the end of the connecting rod 21 near the rotating part 13 slides upward, thus achieving locking. Compared with the prior art where the locking device 3 uses a spherical fit, which leads to high manufacturing difficulty, this application uses a beveled fit, which greatly reduces the manufacturing difficulty of the locking device 3, simplifies the process complexity, saves the manufacturing cost of the manhole, and facilitates production.

[0038] Figure 3 This is a schematic diagram of the upper plane of the U-shaped ring 31 and the lower plane of the handwheel 32 in an embodiment of this utility model. Figure 2 and Figure 3 As shown, the lower surface of the handwheel 32 is set to be horizontal, and the bottom of the handwheel 32 can protrude from the middle of the lower surface of the handwheel 32, that is, the lower surface of the handwheel 32 can be annular. The outer ring diameter of the lower surface of the handwheel 32 is larger than the diameter of the inner groove of the U-shaped ring 31 in the direction perpendicular to the connecting rod 21. Since the upper surface of the U-shaped ring 31 has a preset slope, as the lower surface of the handwheel 32 gradually contacts the upper surface of the U-shaped ring 31, the lower surface of the handwheel 32 gradually abuts against the upper surface near the groove of the U-shaped ring 31.

[0039] Furthermore, the manhole cover 2 can be formed by die stamping, avoiding the need for surface polishing, which facilitates improved strength and saves costs. This utility model does not limit the processing methods for either the manhole cover 2 or the manhole body 1.

[0040] It should be noted that, Figure 1The quick-opening manhole 100 is installed horizontally on the top surface of the brewing equipment. The quick-opening manhole 100 can also be installed vertically on the side of the brewing equipment. This utility model does not limit the installation method of the quick-opening manhole 100.

[0041] The following description, in conjunction with the accompanying drawings, describes the various components of the quick-opening manhole 100 in this embodiment of the present invention, taking the example of the quick-opening manhole 100 being horizontally installed on the upper surface of a brewing device.

[0042] <Locking device 3> like Figure 1 and Figure 2 As shown, the locking device 3 also includes a locking seat 33, the first end of which (i.e. Figure 1 The bottom end of the locking seat 33 is connected to the second support 12 on the right side of the manhole body 1, and the second end of the locking seat 33 (i.e. Figure 1 The top of the locking seat 33 is positioned relative to the groove of the U-ring 31, meaning the projection of the top of the locking seat 33 onto the U-ring 31 is located within the groove of the U-ring 31, and the top of the locking seat 33 is threaded. The handwheel 32 includes a handle 321 and a connecting bolt 322. The top of the handle 321 is shaped like a plum blossom for easy application of force; the bottom of the handle 321 has a movable groove 323, and the lower surface of the handle 321 is horizontal and annular (e.g., ...). Figure 3 As shown, the lower surface of the handle 321 matches the upper surface of the U-ring 31; the union bolt 322 is located at the bottom of the handle 321, the top end of the union bolt 322 passes through the movable groove 323 and connects to the handle 321, and the bottom end of the union bolt 322 passes into the groove of the U-ring 31 and is threadedly connected to the top end of the locking seat 33. In other words, the frictional force generated by the contact of the two mating surfaces of the U-ring 31 and the handle 321, together with the thread preload generated by the top end of the union bolt 322 and the locking seat 33, achieves the locking between the manhole cover 2 and the manhole body 1.

[0043] In the above manner, the end faces of the handle 321 and the U-ring 31 match each other, which can pre-lock the manhole and ensure relative stability between the handle 321 and the U-ring 31. By turning the handle 321, the live bolt 322 at the bottom of the handle 321 passes through the U-ring 31 and locks with the locking seat 33, thereby realizing the automatic locking of the locking device 3.

[0044] In some embodiments, the preset slope, i.e. tilt angle, of the upper plane of the U-shaped ring 31 can be 1~2°. For example, the tilt angle of the U-shaped ring 31 is 1.5°. This utility model does not limit the slope of the U-shaped ring 31.

[0045] <Manhole 1> Figure 4 This is a schematic diagram of the second structure of the quick-opening manhole 100 in this embodiment of the present invention. (Reference) Figure 1 and Figure 4 The rotating component 13 includes a rotating shaft 131 and a connecting shaft 132. The rotating shaft 131 is connected to the first support 11. The left end of the connecting rod 21 is rotatably connected to the rotating shaft 131. The two ends of the connecting shaft 132 in the length direction are the first end and the second end, respectively. The rotating shaft 131 and the first end of the connecting shaft 132 (e.g., the first end of the connecting shaft 132) are connected to each other. Figure 1 The lower end of the connecting shaft 132 is connected to the first end of the connecting rod 21, which is connected to the second end of the connecting shaft 132. Figure 1 The upper end of the middle connecting shaft 132 is slidably connected.

[0046] By means of the above arrangement, a rotating shaft 131 and a connecting shaft 132 are connected to each other. The connecting rod 21 connected to the connecting shaft 132 can drive the manhole cover 2 to rotate relative to the manhole body 1, facilitating the opening / closing operation of the manhole cover 2. At the same time, the connecting rod 21 can slide up and down on the connecting shaft 132. When the locking device 3 is locked, the connecting rod 21 slides upward at the second end of the connecting shaft 132, ensuring that the connecting rod 21 is subjected to uniform force when locked.

[0047] like Figure 1 As shown, the connecting shaft 132 is connected to the left end of the connecting rod 21 through the cap nut 133, and a preset gap is provided between the left end of the connecting rod 21 and the cap nut 133.

[0048] In this way, the connecting rod 21 can slide within a preset gap, and the cap nut 133 can limit the sliding position of the connecting rod 21, which facilitates a stable connection between the connecting shaft 132 and the connecting rod 21.

[0049] Continue to refer to Figure 1 An elastic element 134, which may be a spring, is sleeved on the outside of the connecting shaft 132. The elastic element 134 is located near the left end of the connecting rod 21, and / or near the rotating shaft 131. When the locking device 3 is in the unlocked state, the elastic element 134 is in a compressed state. When the locking device 3 is in the locked state, the elastic potential energy of the elastic element 134 causes the left end of the connecting rod 21 to slide upward.

[0050] In the above manner, when the locking device 3 at the second end of the connecting rod 21 is locked, the elastic element 134 can apply elastic force to the left end of the connecting rod 21, which plays the role of elastic anti-loosening and ensures that the connecting rod 21 is subjected to uniform force.

[0051] <Manhole Cover 2> like Figure 1 and Figure 4 As shown, a limiting member 22 is provided in the middle of the manhole cover 2, and the limiting member 22 is connected to the connecting rod 21 by bolts.

[0052] In this way, the connecting rod 21 can transmit the force it receives during the locking operation to the manhole cover 2 through the limiting member 22, thereby ensuring that the manhole cover 2 is subjected to uniform force. At the same time, the bolt located in the middle of the connecting rod 21 serves as a support point. When the U-shaped ring 31 at the right end of the connecting rod 21 moves downward under the pressure of the handle 321, the left end of the connecting rod 21 moves upward along the connecting shaft 132 to the cap nut 133, ensuring the stability of the left and right ends of the connecting rod 21 during the movement process.

[0053] like Figure 4 As shown, a sight glass 23 is provided in the middle of the manhole cover 2. The sight glass 23 can be a stainless steel flange sight glass 23. The sight glass 23 and the manhole cover 2 can be laser welded together to improve production efficiency. In this way, operators can observe the internal condition of the equipment connected to the manhole through the sight glass 23, which facilitates equipment inspection.

[0054] like Figure 1 As shown, a sealing strip 24 is provided at the connection between the manhole cover 2 and the upper surface of the manhole body 1. The sealing strip 24 can be a food-grade silicone strip. A groove can be provided on the side of the manhole cover 2 facing the manhole body 1. The sealing strip 24 is set in the groove of the manhole cover 2. When the manhole cover 2 is under stress, the sealing strip 24 can be compressed. The manhole cover 2 transmits the stress to the upper surface of the manhole body 1 through the sealing strip 24 in the groove, thereby achieving a complete seal of the quick-opening manhole 100.

[0055] Continue to refer to Figure 4 There are multiple connecting rods 21. By setting multiple connecting rods 21 in the above manner, there are also multiple locking devices 3 on the corresponding connecting rods 21. This is beneficial for the manhole cover 2 to be subjected to uniform force at multiple positions. In addition, the multiple locking devices 3 make the preload force at the unit length of the sealing strip 24 relatively large, and the preload force between the live bolt 322 and the locking seat 33 is more reliable during the locking operation.

[0056] <Brewing Equipment> The second embodiment of this utility model provides a brewing device (not shown), including the aforementioned quick-opening manhole 100, with one end of the manhole body 1 away from the manhole cover 2 (e.g., Figure 1 The lower surface of the manhole body 1 is connected to the brewing equipment. The lower surface of the manhole body 1 can be flat or curved, and the connection method can be welding.

[0057] By using the above method, a quick-opening manhole 100 with a beveled surface is provided on the surface of the quick-opening manhole 100, which reduces the inspection and maintenance costs of the brewing equipment.

[0058] The locking process of the quick-opening manhole 100 in the embodiments of this utility model will be described below, taking the quick-opening manhole 100 installed on the upper surface of the brewing equipment as an example.

[0059] Turning the handle 321 of the quick-opening manhole 100 causes the lower end face of the handle 321 on the right side of the connecting rod 21 to contact the upper end face of the U-ring 31. The U-ring 31 experiences downward pressure from the handle 321, gradually pressing its inclined upper end face down to a horizontal plane. The contact between the lower end face of the handle 321 and the upper end face of the U-ring 31 changes from line contact to surface contact, and the contact area between the two surfaces gradually increases. Continuing to turn the handle 321 causes the union bolt 322 at the bottom of the handle 321 to connect threadedly with the locking seat 33, generating preload. At the same time, the left side of the connecting rod 21 slides upward within the preset gap until it abuts against the cap nut 133 on the connecting shaft 132. The elastic element 134 on the connecting shaft 132 is in a taut state under the action of the elastic force. At this time, the force on the left and right sides of the connecting rod 21 is transmitted to the manhole cover 2 through the limiting element 22 in the middle of the connecting rod 21. The manhole cover 2 transmits the force to the manhole body 1 through the sealing strip 24, so that the manhole cover 2 and the manhole body 1 are evenly stressed. The quick-opening manhole 100 is locked.

[0060] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-opening manhole, characterized in that, include: The manhole body has a first support and a second support extending outward from opposite sidewalls, and a rotating component is provided at the first support. A manhole cover that matches the manhole body, the manhole cover having a connecting rod, the two ends of the connecting rod in the length direction being a first end and a second end, the first end of the connecting rod being rotatably connected to the rotating member, and the first end of the connecting rod being able to slide along the rotating member; Locking device, including: A U-shaped ring is provided at the second end of the connecting rod, and the end of the U-shaped ring away from the manhole body is provided with a preset slope facing outward; A handwheel is provided corresponding to the U-shaped ring. The end face of the handwheel near the manhole body matches the end face of the U-shaped ring away from the manhole body. The bottom of the handwheel passes through the U-shaped ring and is threaded to the second support. The end face of the handwheel near the manhole body is configured such that the contact area between the handwheel and the U-shaped ring gradually increases as the bottom of the handwheel is locked to the second support.

2. The quick-opening manhole according to claim 1, characterized in that, The locking device further includes a locking seat connected to the second support. The handwheel includes: The handle has a movable groove at its bottom, and the end face of the handle near the manhole body matches the end face of the U-shaped ring away from the manhole body. A union bolt is located at the bottom of the handle and passes through the movable groove to connect with the handle. The end of the union bolt away from the handle passes through the U-shaped ring and connects with the locking seat.

3. The quick-opening manhole according to claim 2, characterized in that, The rotating component includes: A rotating shaft is connected to the first support, and the first end of the connecting rod is rotatably connected to the rotating shaft; A connecting shaft has a first end and a second end at its two ends along its length. The rotating shaft is connected to the first end of the connecting shaft, and the first end of the connecting rod is slidably connected to the second end of the connecting shaft.

4. The quick-opening manhole according to claim 3, characterized in that, The connecting shaft is connected to the first end of the connecting rod via a cap nut, and a preset gap is provided between the first end of the connecting rod and the cap nut.

5. The quick-opening manhole according to claim 4, characterized in that, An elastic element is sleeved on the outside of the connecting shaft, the elastic element being disposed adjacent to the first end of the connecting rod, and / or, the elastic element being disposed adjacent to the rotating shaft.

6. The quick-opening manhole according to claim 1, characterized in that, The manhole cover is provided with a limiting member in the middle, and the limiting member is connected to the connecting rod by bolts.

7. The quick-opening manhole according to claim 1, characterized in that, A viewing mirror is provided in the middle of the manhole cover.

8. The quick-opening manhole according to claim 1, characterized in that, A sealing strip is provided at the connection between the manhole cover and the manhole body.

9. The quick-opening manhole according to claim 1, characterized in that, There are multiple connecting rods.

10. A brewing apparatus, characterized in that, Includes a quick-opening manhole as described in any one of claims 1-9, wherein one end of the manhole body away from the manhole cover is connected to the brewing equipment.

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