A fixture for a high-temperature furnace

Abstract

The present invention relates to the field of steelmaking, and particularly to a fixture for a high-temperature furnace. It includes a pliers handle, a pliers head, and a hinge part located between the pliers handle and the pliers head. A semi-cage is provided at the top or bottom of the pliers head. The semi-cages on two cooperating pliers heads are arranged mirror-symmetrically and can cooperate to form a complete cage. The semi-cage includes a plurality of side cage bars extending along the gravity direction and arranged in sequence along the length direction of the pliers head on the pliers head, and a horizontal cage bar provided at the end of the side cage bar away from the pliers head. End blocking parts are provided at one end or both ends of the semi-cage on at least one pliers head. The length of the pliers handle is at least 35 centimeters. In this application, by providing a cage on the pliers head, the specimen can be held, so that the bottom of the specimen has a supporting force and the periphery has a protective edge, thereby improving the stability when the specimen is taken and placed, the specimen is not easy to fall, and the taking and placing are safer. Since the furnace temperature is relatively high, the length of the pliers handle needs to be designed longer to avoid scalding the operator.

Description

Technical Field

[0001] The present invention relates to the field of steelmaking, and particularly to a fixture for a high-temperature furnace. Background Art

[0002] In steelmaking enterprises, laboratories are usually set up. Small high-temperature furnaces are often used in laboratories to conduct some heat treatment tests such as solution treatment, annealing, aging, quenching, etc. Generally, the test temperature is relatively high, mostly above 1000 degrees, and the highest temperature can reach more than 1200 degrees. In the case of high temperature, it is necessary to put the specimens cut from large materials into and take them out of the high-temperature furnace. Generally, the specimens are in the shape of a cylindrical section, with a maximum diameter of up to a dozen centimeters and a maximum length of also up to a dozen centimeters. There are also very small specimens. Since the specimens have different sizes, for relatively larger specimens, their weights are heavier, and it is more difficult to take and place them. For convenient and flexible operation, the existing method is to directly use an ordinary clamp to hold the specimen and send it into the high-temperature furnace. Since the contact surface between the specimen and the clamp is only the clamping points on both sides of the clamp. For cylindrical specimens, such clamping is very unstable and easy to fall off, and it is more dangerous to clamp relatively heavy and high-temperature specimens. Summary of the Invention

[0003] The purpose of the present invention is to provide a fixture for a high-temperature furnace to solve the above technical problems.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A fixture for a high-temperature furnace includes a pair of pliers handles, a pair of pliers heads and a hinge portion located between the pliers handles and the pliers heads. A semi-cage is provided at the top or bottom of the pliers head. The semi-cages on two cooperating pliers heads are arranged in a mirror image and can cooperate to form a complete cage. The semi-cage includes a plurality of side cage bars extending along the gravity direction and arranged in sequence along the length direction of the pliers head on the pliers head, and a horizontal cage bar provided at the end of the side cage bar far from the pliers head. End blocking portions are provided at one or both ends of at least one of the semi-cages on the pliers head. The length of the pliers handle is at least 35 centimeters.

[0006] In this application, by providing a cage on the pliers head, the specimen can be held, so that the bottom of the specimen has a supporting force and the periphery has a protective edge, thereby improving the stability of the specimen when taking and placing it. The specimen is not easy to fall off, and the taking and placing are safer. Since the furnace temperature is relatively high, the length of the pliers handle needs to be designed longer to avoid scalding the operator.

[0007] Preferably, when the clamp head is in the initial closed state, the horizontal cage bars on the two clamp heads are staggered and gaps are provided between adjacent horizontal cage bars, and the horizontal cage bars are arc-shaped bars with the arc openings facing the rear of the clamp head. The setting of the gap allows the sample to be visually observed during placement, and the setting of the gap also facilitates the coordination between the horizontal cage bars when closed. The design of the arc-shaped bars ensures that the horizontal cage bars are on the same plane but do not interfere with each other during coordination, thereby ensuring the effective use of the clamp. The arc-shaped bars can be designed as arc-shaped bars centered on the center point of rotation of the clamp head.

[0008] Preferably, the half cage is arranged at the bottom of the pliers head, and the pliers head comprises a pliers root section, a pliers middle section and a pliers head section from back to front, the pliers middle section is an arched strip formed by extending outward in the middle direction in the horizontal direction, the half cage is arranged at the bottom of the pliers middle section, the free end of the horizontal cage bar is a pointed shovel head gradually inclined toward the bottom of the horizontal cage bar, and at least one of the pliers middle sections of the two pliers heads is provided with an end stop portion at the rear portion, and the end stop portion is an end stop strip arranged in sequence or an end stop plate; a clamping portion is provided on the inner side of the pliers head section.

[0009] When the half cage is set at the bottom of the clamp head, the clamp head section retains the original clamping effect for the clamping part, and the bottom of the sample can be held in the cage, thereby retaining the original clamping effect of fast and flexible, while greatly improving the stability of clamping and greatly reducing the risk of clamping. When in use, separate the two clamp heads, place the horizontal cage bars at the bottom of both sides of the sample, then put the clamp heads together, scoop up the sample with the pointed shovel head and put the sample into the cage until the clamping part is clamped on both sides of the sample. At this time, the sample can be clamped out stably. The above clamp is intuitive, easy to operate and flexible, and is particularly suitable for clamping relatively large and heavy samples.

[0010] Preferably, the horizontal cage bars on the same clamp middle section are lengthened from back to front, and when the clamp head is in an initial closed state, the length of the overlapping portion of the frontmost horizontal cage bars on the two clamp middle sections is less than 1 / 2 of the overall length of the horizontal cage bars.

[0011] The above structure ensures that the bottom of the sample can be held when it is clamped, and the clamping is convenient. After the sharp shovel head scoops up the sample, the clamp head can be pushed forward so that the bottom and rear end of the sample can be held in the cage. For small samples, the whole sample can be directly held in the cage. For larger samples, the clamp and the cage can be used together, and the operation is diverse and flexible.

[0012] Preferably, the clamp root section and the clamp middle section are connected at an obtuse angle in the gravity direction. The above structure allows the clamp handle to be pressed down after the sample is fixed, thereby slightly lifting the sample to effectively prevent the sample from falling forward, and the manually operated clamp handle extends obliquely upward during clamping, which is more convenient for operation.

[0013] Preferably, the semi-cage is provided at the top of the clamping head. The clamping head is a straight strip-shaped clamping head. The semi-cage further includes a bottom cage strip connected between the bottom end of the side cage strip and the clamping head. And a shovel strip that gradually narrows downward from the clamping head body to the other clamping head is provided inside the clamping head. The bottom surfaces of the two shovel strips on the two clamping heads are flush.

[0014] When the two semi-cages of the above structure are closed together, a whole cage with a closed circumferential surface can be formed, so that the specimen can be directly taken out by wrapping it in the cage. As long as the clamping head is clamped, the specimen can be completely placed in the cage, and the taking and placing are very safe.

[0015] Preferably, a terminal blocking part is provided at the front end of the semi-cage on at least one of the clamping heads. The terminal blocking part is multiple vertically arranged terminal blocking strips or a terminal blocking plate.

[0016] Preferably, the terminal blocking part is an arc-shaped terminal blocking strip or an arc-shaped terminal blocking plate with the arc opening facing the rear of the clamping head. The setting of the above structure ensures the smooth and effective cooperation between the staggered terminal blocking parts when the clamping heads are closed together.

[0017] Preferably, the horizontal cage strip and the side cage strip are integrally connected and smoothly transitioned to form an arc strip, or the horizontal cage strip, the side cage strip and the bottom cage strip are integrally connected and smoothly transitioned to form an arc strip. The arc strips on the two clamping heads cooperate to form a complete cylindrical cage. The cage can be made into a semi-cylindrical shape, a cylindrical shape or a square shape, and can be applicable to specimens of various shapes.

[0018] Preferably, an extended hand-held part is provided at the rear end of the clamping handle. The diameter of the hand-held part is larger than the diameters of other parts of the clamping handle part. A handle ring is further provided on the hand-held part. A locking part is also provided between the two clamping handles. The locking part is a locking strip dampedly hinged to one of the clamping handles. The setting of the above structure is for the stability after the cages are closed together, convenient to move, more labor-saving. The locking strip is dampedly hinged, which can ensure that the clamping handles are not easily separated and the operation is convenient.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1). By providing a cage on the clamping head in this application, the specimen can be held, so that the bottom of the specimen has a supporting force and the periphery has a protective edge, thereby improving the stability when the specimen is taken and placed. The specimen is not easily dropped, and the taking and placing are safer. Since the furnace temperature is relatively high, the length of the clamping handle needs to be designed longer to avoid scalding the operator.

[0021] (2). The structure of this application is simple and the operation is convenient. It can be applicable to the clamping of various types of work, especially suitable for quickly taking and placing and flexibly clamping items in a situation with certain danger. Description of the Drawings

[0022] Figure 1Schematic diagram of the structure of the semi-cage at the bottom of the jaw head

[0023] Figure 2 Schematic diagram of the structure of the semi-cage at the top of the jaw head Figure 1 ;

[0024] Figure 3 Schematic diagram of the structure of the semi-cage at the top of the jaw head Figure 2 ;

[0025] Figure 4 Schematic diagram of a partial structure of the present application where the cage is semi-cylindrical

[0026] Figure 5 Schematic diagram of a partial structure of the present application where the cage is cylindrical

[0027] Figure 6 Schematic diagram of the structure of the locking bar cooperating with the jaw handle

[0028] Figure 7 Schematic diagram of the bottom view of the semi-cage at the top of the jaw head. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] Embodiment 1:

[0032] A fixture for a high-temperature furnace includes a jaw handle 1, a jaw head 2, and a hinge portion 3 located between the jaw handle and the jaw head. A semi-cage 4 is provided at the top or bottom of the jaw head. The semi-cages on two cooperating jaw heads are mirror-image arranged and can cooperate to form a complete cage. The semi-cage includes a plurality of side cage bars 41 that are arranged in sequence along the length of the jaw head and extend in the direction of gravity, and a horizontal cage bar 42 provided at the end of the side cage bar away from the jaw head. End blocking portions 43 are provided at one end or both ends of the semi-cage on at least one jaw head, and the length of the jaw handle is at least 35 centimeters.

[0033] In this application, a cage is provided on the tong head, so that the specimen can be held, enabling the bottom of the specimen to have a supporting force and the periphery to have a protective edge, thereby improving the stability when the specimen is picked up and placed, making it difficult for the specimen to fall, and making the picking up and placing safer. Since the furnace temperature is relatively high, the length of the tong handle needs to be designed longer to avoid scalding the operator.

[0034] When the tong head is in the initial closed state, the horizontal cage bars on the two tong heads are staggered, and there is a gap between adjacent horizontal cage bars. The horizontal cage bars are arc-shaped bars with the arc opening facing the rear of the tong head. The setting of the gap allows the specimen to be visually observed when picking up and placing the specimen, and the setting of the gap also facilitates the cooperation between the horizontal cage bars when closing. The design of the arc-shaped bar ensures that the horizontal cage bars are in the same plane but will not interfere with each other during the cooperation process, ensuring the effective use of the fixture. The arc-shaped bar can be designed as an arc bar centered on the center point of the rotation of the tong head.

[0035] Embodiment 2:

[0036] The difference from the above embodiment is that the semi-cage is provided at the bottom of the tong head. The tong head successively includes a tong root section 21, a tong middle section 22, and a tong head section 23 from back to front. The tong middle section is an arched strip extending outward in the horizontal direction in the middle. The semi-cage is provided at the bottom of the tong middle section. The free end of the horizontal cage bar is a pointed shovel head 421 that gradually inclines towards the bottom of the horizontal cage bar. At least one of the rear parts of the tong middle sections of the two tong heads is provided with an end stop portion. The end stop portion is an end stop bar arranged in sequence or a piece of end stop plate; a clamping portion is provided inside the tong head section.

[0037] When the semi-cage is provided at the bottom of the tong head, a top-open structure is formed, and the applicable range of clamping is wide. The tong head section retains the original clamping effect as a clamping portion, while the bottom of the specimen can be held in the cage, so that while retaining the original fast and flexible clamping effect, the clamping stability can be greatly improved, and the clamping danger can be greatly reduced. When in use, the two tong heads are separated, the horizontal cage bars are placed on both sides of the bottom of the specimen, and then the tong heads are closed. The pointed shovel head shovels up the specimen and cages the specimen into the cage until the clamping portion clamps on both sides of the specimen. At this time, the specimen can be firmly clamped out. The above fixture is intuitive, simple and flexible to operate, and is especially suitable for clamping relatively large and heavy specimens.

[0038] The horizontal cage bars on the same clamp middle section are lengthened from back to front, and when the clamp head is in the initial closed state, the length of the overlapping part of the frontmost horizontal cage bars on the two clamp middle sections is less than 1 / 2 of the overall length of the horizontal cage bars. The above-mentioned structure ensures that the bottom of the sample can be held when it is clamped, and the clamping is convenient. After the sharp shovel head scoops up the sample, the clamp head can be pushed forward so that the bottom and rear end of the sample can be held in the cage. For small samples, the whole sample can be directly held in the cage. For larger samples, the clamping and the cage can work together, and the operation is diverse and flexible.

[0039] Embodiment three:

[0040] The difference from the above embodiment is that the clamp root section and the clamp middle section are connected at an obtuse angle in the gravity direction. The above structure allows the clamp handle to be pressed down after the sample is fixed, so that the sample can be slightly lifted to effectively prevent the sample from falling forward, and the manually operated clamp handle extends obliquely upward during clamping, which is more convenient for operation.

[0041] Embodiment four:

[0042] The difference from the above embodiment is that the half cage is arranged on the top of the pliers head, the pliers head is a straight strip-shaped pliers head, the half cage also includes a bottom cage bar 44 connected between the bottom end of the side cage bar and the pliers head, and the inner side of the pliers head is provided with a shovel bar 24 which gradually narrows downward from the pliers head body to the other pliers head, and the bottom surfaces of the two shovel bars on the two pliers heads are flush.

[0043] The two half cages of the above structure can be put together to form a whole cage with a closed periphery, thus forming a closed structure, which has strong stability and safer clamping. Therefore, the sample can be directly wrapped in the cage and taken out. As long as the clamp head is clamped, the sample can be completely placed in the cage, and it is very safe to take and put.

[0044] Embodiment five:

[0045] The difference from the above embodiment is that at least one of the half cages on the tongs head is provided with an end stop 43 at the front end, and the end stop 43 is a plurality of vertical end stop bars or an end stop plate. The above structure is simple and easy to process.

[0046] Embodiment six:

[0047] The difference from the above embodiment is that the end stop is an arc-shaped end stop bar or an arc-shaped end stop plate with the arc opening facing the rear of the pliers head. The end stop bars can also be arranged horizontally and staggered like horizontal cage bars. The arrangement of the above structure ensures that the staggered end stop parts cooperate smoothly and effectively when the pliers heads are closed, and the strength is higher.

[0048] Embodiment seven:

[0049] The difference from the above embodiments lies in that the horizontal cage bars and the side cage bars are arc-shaped bars integrally connected and smoothly transitioned, or the horizontal cage bars, the side cage bars and the bottom cage bars are arc-shaped bars integrally connected and smoothly transitioned. The arc-shaped bars on the two jaws cooperate to form a complete cylindrical cage. The cage can be made into a semi-cylindrical shape, a cylindrical shape or a square shape, and can be applicable to specimens of various shapes.

[0050] Embodiment Eight:

[0051] The difference from the above embodiments lies in that the rear end of the pliers handle is provided with a hand-held part 11 extending outwards. The diameter of the hand-held part is larger than the diameters of other parts of the pliers handle. A handle ring 12 is also provided on the hand-held part. A locking member is also provided between the two pliers handles. The locking member is a locking strip 13 damping-hinged to one pliers handle. The above structure is provided to facilitate the stability after the cage is closed, convenient to move, and more labor-saving. The locking strip is damping-hinged, which can ensure that the pliers handles are not easily separated and is convenient to operate.

[0052] During the use process, a trolley 5 for transporting the fixture can also be cooperated outside the fixture. The top of the trolley is provided with an embedding groove 51 for embedding the closed pliers handles. A sliding cover 52 is provided on the top of the embedding groove. After the pliers handles are placed in the embedding groove, the sliding cover can be slid above the pliers handles to fix the pliers handles in the embedding groove, and then the trolley can be moved to easily carry the specimen. The trolley can be designed as a liftable vehicle body. After the fixture clamps the specimen, the trolley can be moved in place and then the trolley can be lifted to make the pliers handles fall into the embedding groove and then the sliding cover is capped.

[0053] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A fixture for a high-temperature furnace, comprising a pair of pliers handles (1), a pair of pliers heads (2), and a hinge part (3) located between the pliers handles and the pliers heads. It is characterized in that: A semi-cage (4) is provided at the top of the pliers head. The semi-cages on two cooperating pliers heads are arranged mirror-symmetrically and can cooperate to form a complete cage. The semi-cage includes a plurality of side cage bars (41) arranged in sequence along the length direction of the pliers head and extending in the direction of gravity, and a horizontal cage bar (42) provided at the end of the side cage bar away from the pliers head. At least one end or both ends of the semi-cage on one of the pliers heads are provided with end blocking parts (43). The length of the pliers handle is at least 35 cm. The semi-cage is provided at the top of the pliers head. The pliers head is a straight strip-shaped pliers head. The semi-cage further includes a bottom cage bar (44) connected between the bottom end of the side cage bar and the pliers head. And a shovel bar (24) that gradually narrows downward from the pliers head body to the other pliers head is provided inside the pliers head. The bottom surfaces of the two shovel bars on the two pliers heads are flush.

2. The fixture for a high-temperature furnace according to claim 1, It is characterized in that: When the pliers heads are in the initial closed state, the horizontal cage bars on the two pliers heads are arranged staggered, and there is a gap between adjacent horizontal cage bars. The horizontal cage bar is an arc-shaped bar with the arc opening facing the rear of the pliers head.

3. The fixture for a high-temperature furnace according to claim 1 or 2, It is characterized in that: The pliers head successively includes a pliers root section (21), a pliers middle section (22), and a pliers head section (23) from back to front. The pliers middle section is an arched strip-shaped part that extends outward horizontally in the middle. The semi-cage is provided at the top of the pliers middle section. The free end of the horizontal cage bar is a pointed shovel head (421) that gradually inclines towards the bottom of the horizontal cage bar. At least one of the rear parts of the pliers middle sections on the two pliers heads is provided with an end blocking part. The end blocking part is a series of end blocking bars arranged in sequence or a piece of end blocking plate. A clamping part is provided inside the pliers head section.

4. The fixture for a high-temperature furnace according to claim 3, It is characterized in that: The horizontal cage bars on the same pliers middle section are successively lengthened from back to front. And when the pliers heads are in the initial closed state, the length of the overlapping part of the foremost horizontal cage bars on the two pliers middle sections is less than 1 / 2 of the overall length of the horizontal cage bar.

5. The fixture for a high-temperature furnace according to claim 3, It is characterized in that: An obtuse angle connection is formed between the pliers root section and the pliers middle section in the direction of gravity.

6. The fixture for a high-temperature furnace according to claim 1, It is characterized in that: An end blocking part (43) is provided at the front end of the semi-cage on at least one of the pliers heads. The end blocking part (43) is a series of vertical end blocking bars or a piece of end blocking plate.

7. The fixture for a high-temperature furnace according to claim 1, It is characterized in that: The end blocking part is an arc-shaped end blocking bar or an arc-shaped end blocking plate with the arc opening facing the rear of the pliers head.

8. The fixture for a high-temperature furnace according to claim 1, It is characterized in that: The horizontal cage bar and the side cage bar are integrally connected and smoothly transitioned to form an arc bar, or the horizontal cage bar, the side cage bar, and the bottom cage bar are integrally connected and smoothly transitioned to form an arc bar. The arc bars on the two pliers heads cooperate to form a cylindrical complete cage.

9. The fixture of a high-temperature furnace according to claim 1, characterized in that: a hand-held portion (11) extending outward is provided at the rear end of the pliers handle, the diameter of the hand-held portion is larger than the diameters of other parts of the pliers handle portion, a handle ring (12) is further provided on the hand-held portion, a locking member is further provided between the two pliers handles, and the locking member is a locking strip (13) damping-hinged to one of the pliers handles.

Images