Automatic unlocking and locking mechanism for high-temperature chamber door

Abstract

An automatic locking and unlocking mechanism for a high-temperature chamber door comprises a buckle assembly and a spring bolt assembly, and the buckle assembly is matched with the spring bolt assembly in position. The buckle assembly is composed of a spring A, a fixing block A, a buckle and a rotating shaft A. One end of the buckle is movably arranged on the fixing block A through the rotating shaft A. The spring A is fixed to the other end of the buckle and between the buckle and the fixing block A. The spring bolt assembly comprises a fixing block B, a spring B, a bolt connecting rod, a guide block, a connecting rod A, a rotating shaft B, a connecting rod spring bolt and a connecting rod B. The scheme disclosed by the utility model can be linked with an automatic control system, so that the time loss can be reduced. And pneumatic or hydraulic control can be adopted, so that compared with electric control, the cost is saved in a high-temperature environment, and the safety and the reliability are higher. And a normally open state or a normally closed state can be selected as an initial state so as to adapt to different working condition requirements, and the applicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of high temperature door lock equipment, and specifically relates to an automatic opening and closing locking mechanism for a high temperature room door. Background Art

[0002] High temperature door lock equipment can be used for the opening and closing of high temperature room doors for cooling and crystallization of resin products, or the opening and closing of high temperature room doors in other industries. For example, the cooling and crystallization room of resin products, because the resin needs to release a lot of heat during cooling and crystallization, the indoor temperature is relatively high, reaching more than 200°C, and there is smoke and dust in the room, so the sealing requirements of the high temperature room are relatively high, and the requirements for the safety, opening and closing, and opening and closing of the door are also relatively high.

[0003] After the materials in the reactor are discharged into the cooling crystallization chamber, the temperature of the crystallization chamber will rise to about 200°C as the amount of discharged materials increases, and then the temperature will drop to room temperature. During the pre-discharge and cooling process, the high-temperature chamber door needs to be kept tightly closed to isolate the high-temperature indoor and outdoor environments, and the door is prohibited from being opened due to accidental touch.

[0004] At present, the door handle of the high-temperature crystallization chamber is less than 1.8m from the ground. It adopts the manual locking and unlocking method, and is opened and locked by a dedicated person. The degree of automation is not high, which wastes a certain amount of personnel and time, and there is also the risk of untimely and unreliable locking. Although the common door openers on the market can automatically open and close the door and lock it, most of the applicable environments are not sufficient to meet similar high temperature and explosion-proof requirements.

[0005] Existing high temperature room door locks have many disadvantages, such as manual opening and closing, difficulty in realizing automatic control and monitoring, low efficiency, and great uncertainty and instability; the use environment and installation location of automatic door openers are limited. Automatic door openers are basically controlled by motors. On the premise of meeting explosion-proof requirements, the cost is much higher than that of ordinary door openers. Ordinary locks are not easy to connect with pneumatic control, and a special connection structure is required. It is troublesome to replace parts, which will also increase the cost of use. Utility Model Content

[0006] The utility model aims to provide an automatic opening, closing and locking mechanism for a high temperature room door, so as to solve part or all of the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An automatic opening and closing locking mechanism for a high temperature room door comprises a buckle assembly and a lock tongue assembly, wherein the buckle assembly and the lock tongue assembly are matched in position;

[0009] Buckle assembly, the buckle assembly is composed of spring A, fixed block A, buckle, and shaft A. One end of the buckle is movably arranged on the fixed block A through the shaft A. The spring A is fixed to the other end of the buckle. One end of the spring A is connected to the bottom of the buckle, and the other end is connected to the upper part of the fixed block A. Between the buckle and the fixed block A;

[0010] The spring can play a role of buffering and resetting. When the connecting rod lock tongue of the lock tongue assembly is pressed down onto the buckle, the buckle can move downward a short distance to compress the spring A to provide buffering and lock the buckle and the connecting rod lock tongue in the horizontal direction; when the connecting rod lock tongue bounces up, the buckle is reset.

[0011] A lock tongue assembly, the lock tongue assembly includes a fixed block B, a spring B, a bolt connecting rod, a guide block, a connecting rod A, a rotating shaft B, a connecting rod lock tongue, and a connecting rod B. The end of the connecting rod lock tongue is movably arranged on the fixed block B, the front part of the connecting rod lock tongue is movably connected to the front part of the connecting rod A through the rotating shaft B, the end of the connecting rod B is movably arranged on the fixed block B, the front end of the connecting rod B is movably connected to the middle part of the connecting rod A, the end of the spring B is movably arranged on the fixed block B, the front end of the spring B is movably connected to the middle and rear part of the connecting rod A, the middle and rear part of the connecting rod A is provided with a long slot hole, the guide block is vertically fixed on the fixed block B, the lower part of the bolt connecting rod is inserted into the slot of the guide block, and the fixed shaft at the front end of the bolt connecting rod is slidably fixed in the long slot hole. The bolt connecting rod is connected to an external controllable driving device. Preferably, the bolt connecting rod is connected to a cylinder and is guided by a guide block so that it can move up and down. When the bolt connecting rod moves upward, the connecting rod A moves obliquely downward relative to the bolt connecting rod from the long slot hole. At this time, the connecting rod lock tongue moves downward. When the connecting rod lock tongue is pressed against the buckle, the mechanism is locked horizontally. When the bolt connecting rod moves downward, the connecting rod A moves obliquely upward relative to the bolt connecting rod from the long slot hole. At this time, the connecting rod lock tongue moves obliquely upward. When the connecting rod lock tongue is disengaged from the buckle, the mechanism completes the unlocking movement.

[0012] In an optional solution, the buckle assembly is fixed to the door panel via a fixing block A, and the lock tongue assembly is fixed to the door frame via a fixing block B.

[0013] In another optional solution relative to the above, the buckle assembly is fixed to the door frame via a fixing block A, and the lock tongue assembly is fixed to the door panel via a fixing block B.

[0014] The snap assembly and the lock tongue assembly can be interchanged and installed flexibly without affecting the opening and closing of the door lock.

[0015] In a preferred solution, the upper part of the bolt connecting rod is provided with threads. The arrangement of the threads can be directly connected to an external cylinder without relying on any connection device to directly drive the opening and closing of the lock.

[0016] In a preferred solution, there are two springs A, which are arranged side by side between the buckle and the fixing block A.

[0017] In a preferred solution, the connecting rod A, the rotating shaft B, the connecting rod locking tongue and the connecting rod B are divided into two groups and are symmetrically arranged on the fixing block B.

[0018] In a preferred solution, the connecting rod A has an obtuse angle bend in the horizontal plane. The rotating shaft B is movably connected to the front end of the plane where one side of the obtuse angle is located, the connecting rod B is movably connected to the top part of the obtuse angle, and the spring B is movably connected to the middle part of the plane where the other side of the obtuse angle is located.

[0019] In an optional solution, when the automatic opening and closing locking mechanism is locked, the spring B is in a normal stress-free state.

[0020] In another optional solution relative to the above, when the automatic opening and closing locking mechanism is unlocked, the spring B is in a normal stress-free state.

[0021] The initial state of the mechanism can be changed by using different lengths of spring B. If the mechanism is locked, spring B is in a stretched state, and after the mechanism is unlocked, spring B is in a normal state, the mechanism is in a normally open form; if the mechanism is locked, spring B is in a normal state, and after the mechanism is unlocked, spring B is in a compressed state, the mechanism is in a normally closed form. When in use, you can choose a normally open or normally closed locking mechanism according to the usage situation to meet the different needs of unlocking or locking in abnormal situations.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The automatic opening and closing locking mechanism for high temperature room doors disclosed in the utility model can be linked with the automatic control system to reduce time loss. Pneumatic or hydraulic control can be adopted. Compared with electric control, it saves costs and is safer and more reliable in high temperature environment. Normally open or normally closed can be selected as the initial state to adapt to different working conditions, and the applicability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of an automatic opening and closing locking mechanism for a high temperature room door of the utility model;

[0025] Figure 2 This is a schematic diagram of the buckle assembly structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the lock tongue assembly described in the utility model;

[0027] Figure 4 This is a locking state diagram of an automatic opening and closing locking mechanism for a high temperature room door of the utility model;

[0028] Figure 5 The utility model is an unlocking state diagram of an automatic opening and closing locking mechanism for a high temperature room door.

[0029] In the figure:

[0030] 1. Spring A, 2. Fixed block A, 3. Buckle, 4. Rotating shaft A, 5. Fixed block B, 6. Spring B, 7. Bolt connecting rod, 8. Guide block, 9. Connecting rod A, 10. Rotating shaft B, 11. Connecting rod lock tongue, 12. Connecting rod B. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figure 1-5 As shown:

[0033] Embodiment 1:

[0034] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0035] An automatic opening and closing locking mechanism for a high temperature room door comprises a buckle assembly and a lock tongue assembly, wherein the buckle assembly cooperates with the lock tongue assembly; the buckle assembly comprises a spring A1, a fixed block A2, a buckle 3, and a rotating shaft A4, wherein one end of the buckle 3 is movably arranged on the fixed block A2 through the rotating shaft A4, and the spring A1 is fixed to the other end of the buckle 3, wherein one end of the spring A1 is connected to the bottom of the buckle 3, and the other end is connected to the upper part of the fixed block A2. The spring A1 is arranged between the buckle 3 and the fixed block A2; the lock tongue assembly comprises a fixed block B5, a spring B6, a bolt connecting rod 7, a guide block 8, a connecting rod A9, a rotating shaft B10, a connecting rod lock tongue 11, and a connecting rod B12. The end of the connecting rod lock tongue 11 is movably arranged on the fixed block B5, and the front part of the connecting rod lock tongue 11 is movably connected to the front part of the connecting rod A9 through the rotating shaft B10. The end of the connecting rod B12 is movably arranged on the fixed block B5, and the front end of the connecting rod B12 is movably connected to the middle part of the connecting rod A9. The end of the spring B6 is movably arranged on the fixed block B5, and the front end of the spring B6 is movably connected to the middle and rear part of the connecting rod A9. The middle and rear part of the connecting rod A9 is provided with a long slot hole. The guide block 8 is vertically fixed on the fixed block B5, and the lower part of the bolt connecting rod 7 is inserted into the slot of the guide block 8. The fixed shaft at the front end of the bolt connecting rod 7 can be slidably fixed in the long slot hole. The bolt connecting rod is connected to an external controllable driving device. Preferably, the bolt connecting rod is connected to a cylinder.

[0036] The buckle assembly is fixed to the door panel through the fixing block A2, and the bolt assembly is fixed to the door frame through the fixing block B5. When the automatic opening and closing locking mechanism is locked, the spring B6 is in a normal stress-free state. The connecting rod A9 has an obtuse angle bend in the horizontal plane.

[0037] Embodiment 2:

[0038] An automatic opening and closing locking mechanism for a high temperature room door comprises a buckle assembly and a lock tongue assembly, wherein the buckle assembly cooperates with the lock tongue assembly; the buckle assembly comprises a spring A1, a fixed block A2, a buckle 3, and a rotating shaft A4, wherein one end of the buckle 3 is movably arranged on the fixed block A2 through the rotating shaft A4, and the spring A1 is fixed to the other end of the buckle 3, wherein one end of the spring A1 is connected to the bottom of the buckle 3, and the other end is connected to the upper part of the fixed block A2. The spring A1 is arranged between the buckle 3 and the fixed block A2; the lock tongue assembly comprises a fixed block B5, a spring B6, a bolt connecting rod 7, a guide block 8, a connecting rod A9, a rotating shaft B10, a connecting rod lock tongue 11, and a connecting rod B12. The end of the connecting rod lock tongue 11 is movably arranged on the fixed block B5, and the front part of the connecting rod lock tongue 11 is movably connected to the front part of the connecting rod A9 through the rotating shaft B10. The end of the connecting rod B12 is movably arranged on the fixed block B5, and the front end of the connecting rod B12 is movably connected to the middle part of the connecting rod A9. The end of the spring B6 is movably arranged on the fixed block B5, and the front end of the spring B6 is movably connected to the middle and rear part of the connecting rod A9. The middle and rear part of the connecting rod A9 is provided with a long slot hole. The guide block 8 is vertically fixed on the fixed block B5, and the lower part of the bolt connecting rod 7 is inserted into the slot of the guide block 8. The fixed shaft at the front end of the bolt connecting rod 7 can be slidably fixed in the long slot hole. The bolt connecting rod is connected to an external controllable driving device. Preferably, the bolt connecting rod is connected to a cylinder.

[0039] The buckle assembly is fixed to the door frame through the fixing block A2, and the bolt assembly is fixed to the door panel through the fixing block B5. When the automatic opening and closing locking mechanism is unlocked, the spring B6 is in a normal stress-free state. The connecting rod A9 is bent at an obtuse angle in the horizontal plane. The upper part of the bolt connecting rod 7 is provided with a thread.

[0040] Embodiment 3:

[0041] An automatic opening and closing locking mechanism for a high temperature room door comprises a buckle assembly and a lock tongue assembly, wherein the buckle assembly cooperates with the lock tongue assembly; the buckle assembly comprises a spring A1, a fixed block A2, a buckle 3, and a rotating shaft A4, wherein one end of the buckle 3 is movably arranged on the fixed block A2 through the rotating shaft A4, and the spring A1 is fixed to the other end of the buckle 3, wherein one end of the spring A1 is connected to the bottom of the buckle 3, and the other end is connected to the upper part of the fixed block A2. The spring A1 is arranged between the buckle 3 and the fixed block A2; the lock tongue assembly comprises a fixed block B5, a spring B6, a bolt connecting rod 7, a guide block 8, a connecting rod A9, a rotating shaft B10, a connecting rod lock tongue 11, and a connecting rod B12. The end of the connecting rod lock tongue 11 is movably arranged on the fixed block B5, and the front part of the connecting rod lock tongue 11 is movably connected to the front part of the connecting rod A9 through the rotating shaft B10. The end of the connecting rod B12 is movably arranged on the fixed block B5, and the front end of the connecting rod B12 is movably connected to the middle part of the connecting rod A9. The end of the spring B6 is movably arranged on the fixed block B5, and the front end of the spring B6 is movably connected to the middle and rear part of the connecting rod A9. The middle and rear part of the connecting rod A9 is provided with a long slot hole. The guide block 8 is vertically fixed on the fixed block B5, and the lower part of the bolt connecting rod 7 is inserted into the slot of the guide block 8. The fixed shaft at the front end of the bolt connecting rod 7 can be slidably fixed in the long slot hole. The bolt connecting rod is connected to an external controllable driving device. Preferably, the bolt connecting rod is connected to a cylinder.

[0042] The buckle assembly is fixed to the door panel through the fixing block A2, and the bolt assembly is fixed to the door frame through the fixing block B5. When the automatic opening and closing locking mechanism is unlocked, the spring B6 is in a normal stress-free state. The connecting rod A9 is bent at an obtuse angle in the horizontal plane. There are two springs A1, which are arranged side by side between the buckle 3 and the fixing block A2.

[0043] Embodiment 4:

[0044] An automatic opening and closing locking mechanism for a high temperature room door comprises a buckle assembly and a lock tongue assembly, wherein the buckle assembly cooperates with the lock tongue assembly; the buckle assembly comprises a spring A1, a fixed block A2, a buckle 3, and a rotating shaft A4, wherein one end of the buckle 3 is movably arranged on the fixed block A2 through the rotating shaft A4, and the spring A1 is fixed to the other end of the buckle 3, wherein one end of the spring A1 is connected to the bottom of the buckle 3, and the other end is connected to the upper part of the fixed block A2. The spring A1 is arranged between the buckle 3 and the fixed block A2; the lock tongue assembly comprises a fixed block B5, a spring B6, a bolt connecting rod 7, a guide block 8, a connecting rod A9, a rotating shaft B10, a connecting rod lock tongue 11, and a connecting rod B12. The end of the connecting rod lock tongue 11 is movably arranged on the fixed block B5, and the front part of the connecting rod lock tongue 11 is movably connected to the front part of the connecting rod A9 through the rotating shaft B10. The end of the connecting rod B12 is movably arranged on the fixed block B5, and the front end of the connecting rod B12 is movably connected to the middle part of the connecting rod A9. The end of the spring B6 is movably arranged on the fixed block B5, and the front end of the spring B6 is movably connected to the middle and rear part of the connecting rod A9. The middle and rear part of the connecting rod A9 is provided with a long slot hole. The guide block 8 is vertically fixed on the fixed block B5, and the lower part of the bolt connecting rod 7 is inserted into the slot of the guide block 8. The fixed shaft at the front end of the bolt connecting rod 7 can be slidably fixed in the long slot hole. The bolt connecting rod is connected to an external controllable driving device. Preferably, the bolt connecting rod is connected to a cylinder.

[0045] The buckle assembly is fixed to the door frame through the fixing block A2, and the lock tongue assembly is fixed to the door panel through the fixing block B5. When the automatic opening and closing locking mechanism is locked, the connecting rod A9, the rotating shaft B10, the connecting rod lock tongue 11, and the connecting rod B12 are two groups, which are symmetrically arranged on the fixing block B5.

[0046] The above implementation modes are only several typical combinations of the present solution. The implementation modes described in the implementation modes can be combined arbitrarily without departing from the protection scope of the present solution.

[0047] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic opening and closing locking mechanism for a high temperature room door, characterized in that: It includes a buckle assembly and a lock tongue assembly, and the buckle assembly and the lock tongue assembly are matched in position; A buckle assembly, the buckle assembly comprising a spring A (1), a fixing block A (2), a buckle (3), and a rotating shaft A (4); one end of the buckle (3) is movably arranged on the fixing block A (2) via the rotating shaft A (4); the spring A (1) is fixed to the other end of the buckle (3); and the spring A (1) is arranged between the buckle (3) and the fixing block A (2); A lock tongue assembly, the lock tongue assembly comprising a fixed block B (5), a spring B (6), a bolt connecting rod (7), a guide block (8), a connecting rod A (9), a rotating shaft B (10), a connecting rod lock tongue (11), and a connecting rod B (12), wherein the end of the connecting rod lock tongue (11) is movably arranged on the fixed block B (5), the front part of the connecting rod lock tongue (11) is movably connected to the front part of the connecting rod A (9) through the rotating shaft B (10), and the end of the connecting rod B (12) is movably arranged on the fixed block B (5). The front end of the connecting rod B (12) is movably connected to the middle part of the connecting rod A (9), the end of the spring B (6) is movably arranged on the fixed block B (5), the front end of the spring B (6) is movably connected to the middle and rear part of the connecting rod A (9), the middle and rear part of the connecting rod A (9) is provided with a long slot, the guide block (8) is vertically fixed on the fixed block B (5), the lower part of the bolt connecting rod (7) is inserted into the slot of the guide block (8), and the fixed shaft at the front end of the bolt connecting rod (7) is slidably fixed in the long slot.

2. The automatic opening and closing locking mechanism for a high temperature room door according to claim 1, characterized in that: The buckle assembly is fixed on the door panel via a fixing block A (2), and the lock tongue assembly is fixed on the door frame via a fixing block B (5).

3. The automatic opening and closing locking mechanism for a high temperature room door according to claim 1, characterized in that: The buckle assembly is fixed on the door frame via a fixing block A (2), and the lock tongue assembly is fixed on the door panel via a fixing block B (5).

4. The automatic opening and closing locking mechanism for a high temperature room door according to claim 1, characterized in that: The upper part of the bolt connecting rod (7) is provided with threads.

5. The automatic opening and closing locking mechanism for a high temperature room door according to claim 1, characterized in that: There are two springs A (1), which are arranged side by side between the buckle (3) and the fixing block A (2).

6. The automatic opening and closing locking mechanism for a high temperature room door according to claim 1, characterized in that: The connecting rod A (9), the rotating shaft B (10), the connecting rod locking tongue (11) and the connecting rod B (12) are two groups, which are symmetrically arranged on the fixing block B (5).

7. The automatic opening and closing locking mechanism for a high temperature room door according to claim 6, characterized in that: The connecting rod A (9) is bent at an obtuse angle in a horizontal plane.

8. The automatic opening and closing locking mechanism for a high temperature room door according to claim 1, characterized in that: The other end of the spring B (6) is fixed on the connecting rod A (9) at the middle part of the relatively long slot hole.

9. The automatic opening and closing locking mechanism for a high temperature room door according to claim 1, characterized in that: When the automatic opening and closing locking mechanism is locked, the spring B (6) is in a normal stress-free state.

10. The automatic opening and closing locking mechanism for a high temperature room door according to claim 1, characterized in that: When the automatic opening and closing locking mechanism is unlocked, the spring B (6) is in a normal stress-free state.

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