Refractory porous brick convenient to observe

Abstract

A refractory hole brick convenient to observe comprises an observation brick body, an expansion ring and a transmission opening and closing mechanism. When the device is not used at ordinary times, the two insertion opening and closing plates abut against the outer side through the abutting spring, so that the outer ends of the two insertion opening and closing plates are in sealed butt joint in the middle of the observation channel, and therefore internal sealing can be achieved, and pollution is avoided; when operation is carried out, the interior of the kiln is high in temperature, the expansion ring expands after being heated and expands in the radial direction, the expansion ring abuts against the floating columns at the two ends after being expanded in the radial direction, the floating columns move towards the interior of the floating insertion groove, the floating columns drive the insertion opening and closing plates to move towards the interior of the insertion opening and closing groove through the penetrating connection rods, and the outer ends of the two insertion opening and closing plates are separated to form an observation hole. In this way, automatic sealing and tapping are achieved, hand operation of an operator is not needed, and operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of refractory materials, in particular to a refractory hole brick which is convenient for observation. Background Art

[0002] Kiln is an important thermal equipment in many fields such as metallurgy, chemical industry, building materials and light industry, which is used for product firing. In order to facilitate the observation of the firing of products in the kiln, a refractory brick with an observation hole is usually provided on the kiln body, and observation is carried out through the observation hole on the refractory brick. The existing observation hole is usually inserted into the observation hole of the refractory brick through a cylindrical plug. When observation is required, the cylindrical plug can be pulled out from the observation hole and then observation can be carried out. However, when this method touches the plug by hand, the temperature of the plug is generally high, which makes the operator feel uncomfortable. At the same time, after long-term use, the observation hole is easily affected by thermal expansion and contraction, causing the observation hole to deform. In this way, the cylindrical plug cannot be stably plugged into the observation hole, which makes actual operation more inconvenient. Utility Model Content

[0003] In view of the above-mentioned deficiencies of the prior art, the problem solved by the utility model is to provide a refractory hole brick which can be automatically closed and easy to observe without the need for manual extraction of the plug.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0005] A refractory hole brick for easy observation, comprising an observation brick body, an expansion ring, and a transmission opening and closing mechanism; an observation channel is provided in the middle of the observation brick body; an annular expansion groove is provided around the inner side of the observation channel; a plug-in slot is provided at each of the two outer ends of the observation channel, and the plug-in slot is located on the outer side of the annular expansion groove; the sides of the plug-in slot are connected to the annular expansion groove through the through-channel respectively; the transmission opening and closing mechanism is installed on the observation brick body; the transmission opening and closing mechanism comprises a floating column, a through-rod, a plug-in opening and closing plate, and a pressure spring; the expansion ring is installed in the annular expansion groove; a floating slot is provided at each of the two outer ends of the annular expansion groove; a floating column is plugged into the floating slot respectively; the plug-in opening and closing plates are slidably installed on the plug-in slots, and the inner ends of the plug-in opening and closing plates are connected to a pressure spring respectively, and the two plug-in opening and closing plates are pressed toward the outside by the pressure springs, so that the outer ends of the two plug-in opening and closing plates are in the observation The middle of the channel is closed and docked; the inner sides of the inner ends of the plug-in opening and closing plates are respectively connected to the through-rods, and the ends of the through-rods are connected to the outer end sides of the floating columns after passing through the through-channels; the expansion ring expands radially after being heated and expanded, and the expansion ring presses the floating columns at both ends after radial expansion, so that the floating columns move toward the inside of the floating slots, and the floating columns drive the plug-in opening and closing plates to move toward the inside of the plug-in slots through the through-rods, so that the outer ends of the two plug-in opening and closing plates are separated and form observation holes; a plurality of limiting grooves are evenly arranged on the outer sides of the expansion ring; a plurality of radial springs are evenly arranged inside the annular expansion grooves around the observation channel; the outer ends of the radial springs are fixedly connected to the outer inner walls of the annular expansion grooves; the inner ends of the radial springs abut against the limiting grooves of the expansion ring; the outer sides of the inner ends of the plug-in opening and closing plates are respectively provided with moving blocks; the outer sides of the plug-in slots are respectively provided with moving slots; the plug-in opening and closing plates are slidably connected to the moving slots through the moving blocks.

[0006] Furthermore, a pressing spring is installed in each of the movable card slots; two ends of the pressing spring are elastically pressed between the inner side wall of the movable card slot and the movable card block.

[0007] Furthermore, the floating column is made of ceramic material.

[0008] Furthermore, the plug-in closing plate is made of heat-insulating refractory material.

[0009] Furthermore, the observation brick body is made of heat-insulating refractory material.

[0010] Furthermore, the expansion ring is a ring body made of metal material.

[0011] Furthermore, the inner end of the observation channel is in a tapered structure that is small on the outside and large on the inside.

[0012] The beneficial effects of the utility model are as follows:

[0013] When the utility model is not in use, the two plug-in opening and closing plates are pressed outwardly by the pressing spring, so that the outer ends of the two plug-in opening and closing plates are closed and docked in the middle of the observation channel, so that internal closure can be achieved to avoid pollution; when operation is carried out, the temperature inside the kiln is high, and the expansion ring expands radially after being heated and expanded, and the expansion ring presses the floating columns at both ends after radial expansion, so that the floating columns move into the floating slots, and the floating columns drive the plug-in opening and closing plates to move into the plug-in slots through the connecting rods, so that the outer ends of the two plug-in opening and closing plates are separated and an observation hole is formed, so that automatic closing and opening are achieved, and there is no need for manual operation by the operator, thereby improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model in the closed state of the plug-in opening and closing plate.

[0015] Figure 2 It is a structural schematic diagram of the utility model in which the opening and closing plates are separated and connected to form an observation hole.

[0016] Figure 3 It is a top view and cross-sectional structure schematic diagram of the plug-in opening and closing plate, the connecting rod and the floating column of the utility model.

[0017] Figure 4 For this utility model Figure 1 Schematic diagram of the local enlarged structure. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0019] like Figures 1 to 4As shown, a refractory hole brick for easy observation includes an observation brick body 1, an expansion ring 2, and a transmission opening and closing mechanism 3; an observation channel 11 is provided in the middle of the observation brick body 1; an annular expansion groove 12 is provided around the inner side of the observation channel 11; a plug-in slot 13 is provided at each of the two ends of the outer side of the observation channel 11, and the plug-in slot 13 is located on the outer side of the annular expansion groove 12; the side portions of the plug-in slot 13 are connected to the annular expansion groove 12 through a through-channel 14; the transmission opening and closing mechanism 3 is installed on the observation brick body 1; the transmission opening and closing mechanism 3 includes a floating column 31, a through-rod 32, a plug-in opening and closing plate 33, and a pressure spring 34; the expansion ring 2 is installed in the annular expansion groove 12; a floating slot 121 is provided at each of the two ends of the outer side of the annular expansion groove 12; and two plug-in slots 121 are respectively plugged into the floating slots 121. A floating column 31; the plug-in opening and closing plates 33 are slidably installed on the plug-in slots 13, and the inner ends of the plug-in opening and closing plates 33 are respectively connected to a pressure spring 34, and the two plug-in opening and closing plates 33 are pressed outward by the pressure springs 34, so that the outer ends of the two plug-in opening and closing plates 33 are closed and docked in the middle of the observation channel 11; the inner sides of the inner ends of the plug-in opening and closing plates 33 are respectively connected to the through-rods 32, and the ends of the through-rods 32 pass through the through-channel 14 and are connected to the outer end sides of the floating column 31; the expansion ring 2 expands radially after being heated, and the expansion ring 2 presses the floating columns 31 at both ends after radial expansion, so that the floating column 31 moves toward the inside of the floating slot 121, and the floating column 31 drives the plug-in opening and closing plates 33 to move toward the inside of the plug-in slots 13 through the through-rods 32, so that the outer ends of the two plug-in opening and closing plates 33 are separated and an observation hole 331 is formed.

[0020] like Figures 1 to 4 As shown, in order to improve the installation stability of the expansion ring 2, further, a plurality of limiting grooves 21 are evenly opened on the outer side of the expansion ring 2; a plurality of radial springs 4 are evenly arranged inside the annular expansion groove 12 around the observation channel 11; the outer end of the radial spring 4 is fixedly connected to the outer inner wall of the annular expansion groove 2; the inner end of the radial spring 4 abuts against the limiting groove 21 of the expansion ring 2.

[0021] like Figures 1 to 4 As shown, in order to improve the movement stability of the plug-in opening and closing plate 33, further, the inner and outer sides of the plug-in opening and closing plate 33 are respectively provided with movable card blocks 332; the outer sides of the plug-in slots 13 are respectively provided with movable card slots 131; the plug-in opening and closing plate 33 is slidably connected to the movable card slots 131 through the movable card blocks 332.

[0022] like Figures 1 to 4As shown, in order to facilitate the plug-in of the opening and closing plate 33 for closed resetting, further, a pressure spring 34 is installed in the movable slot 131; the two ends of the pressure spring 34 are elastically pressed between the inner wall of the movable slot 131 and the movable block 332. Further, the floating column 31 is made of ceramic material. Further, the plug-in closing plate 33 is made of heat-insulating refractory material. Further, the observation brick body 1 is made of heat-insulating refractory material. Further, the expansion ring 2 is a ring body made of metal material. Further, the inner end of the observation channel 11 is a conical structure that is small on the outside and large on the inside.

[0023] When the utility model is not in use, the two plug-in opening and closing plates 33 are pressed outward by the pressing springs 34, so that the outer ends of the two plug-in opening and closing plates 33 are closed and docked in the middle of the observation channel 11, so that internal closure can be achieved to avoid pollution; when operation is in progress, the temperature inside the kiln is high, and the expansion ring 2 expands radially after being heated and expanded. After the expansion ring 2 expands radially, it presses the floating columns 31 at both ends, so that the floating columns 31 move toward the inside of the floating slot 121, and the floating columns 31 drive the plug-in opening and closing plates 33 to move toward the inside of the plug-in slot 13 through the connecting rod 32, so that the outer ends of the two plug-in opening and closing plates 33 are separated and an observation hole 331 is formed, so that automatic closing and opening are achieved, and no manual operation is required by the operator, thereby improving the convenience of operation.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A refractory brick with holes for easy observation, characterized in that: It includes an observation brick body, an expansion ring, and a transmission opening and closing mechanism; an observation channel is provided in the middle of the observation brick body; an annular expansion groove is provided around the inner side of the observation channel; a plug-in slot is provided at each of the two outer ends of the observation channel, and the plug-in slot is located on the outer side of the annular expansion groove; the side parts of the plug-in slot are connected to the annular expansion groove through the through-channel respectively; the transmission opening and closing mechanism is installed on the observation brick body; the transmission opening and closing mechanism includes a floating column, a through-rod, a plug-in opening and closing plate, and a pressure spring; the expansion ring is installed in the annular expansion groove; a floating slot is provided at each of the two outer ends of the annular expansion groove; a floating column is plugged into the floating slot respectively; the plug-in opening and closing plates are slidably installed on the plug-in slots, and the inner ends of the plug-in opening and closing plates are connected to a pressure spring respectively, and the two plug-in opening and closing plates are pressed toward the outside by the pressure springs, so that the outer ends of the two plug-in opening and closing plates are sealed in the middle of the observation channel. Closed docking; the inner sides of the inner ends of the plug-in opening and closing plates are respectively connected to the through-rods, and the ends of the through-rods are connected to the outer end sides of the floating columns after passing through the through-channel; the expansion ring expands radially after being heated and expanded, and the expansion ring presses the floating columns at both ends after radial expansion, so that the floating columns move toward the inside of the floating slots, and the floating columns drive the plug-in opening and closing plates to move toward the inside of the plug-in slots through the through-rods, so that the outer ends of the two plug-in opening and closing plates are separated and form observation holes; a plurality of limiting grooves are evenly arranged on the outer sides of the expansion rings; a plurality of radial springs are evenly arranged inside the annular expansion grooves around the observation channel; the outer ends of the radial springs are fixedly connected to the outer inner walls of the annular expansion grooves; the inner ends of the radial springs abut against the limiting grooves of the expansion ring; the outer sides of the inner ends of the plug-in opening and closing plates are respectively provided with moving card blocks; the outer sides of the plug-in slots are respectively provided with moving card slots; the plug-in opening and closing plates are slidably connected to the moving card slots through the moving card blocks.

2. The refractory brick with holes for easy observation according to claim 1, characterized in that: A pressing spring is installed in each of the movable card slots; two ends of the pressing spring are elastically pressed between the inner side wall of the movable card slot and the movable card block respectively.

3. The refractory brick with holes for easy observation according to claim 1, characterized in that: The floating column is made of ceramic material.

4. The refractory brick with holes for easy observation according to claim 1, characterized in that: The plug-in opening and closing plate is made of heat-insulating refractory material.

5. The refractory brick with holes for easy observation according to claim 1, characterized in that: The observation brick body is made of heat-insulating refractory material.

6. The refractory brick with holes for easy observation according to claim 1, characterized in that: The expansion ring is a ring body made of metal material.

7. The refractory brick with holes for easy observation according to claim 1, characterized in that: The inner end of the observation channel is in a tapered structure that is small on the outside and large on the inside.

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