Drying oven interlocking mechanism

Abstract

The utility model discloses a drying oven interlocking mechanism which comprises a rotating rod, a first limiting piece, a second limiting piece, a locking structure and a locking piece. A plurality of first limiting pieces and second limiting pieces; the locking structure is arranged on the oven body, and a lock hole is formed in the locking structure; a locking hole is formed in the rotating rod, the rotating rod rotates around the axis so that the lock hole can be aligned with the locking hole, and the locking piece is used for being inserted into the lock hole and the locking hole; when all the oven doors are closed and the rotating handle is in a first state, the first limiting piece and the second limiting piece are located on the outer sides of the oven doors, and the lock hole is aligned with the locking hole; when part or all of the oven doors are opened, the rotating handle is in a second state, the first limiting piece abuts against the inner wall of the oven door or the rotating handle, or the second limiting piece abuts against the oven door, the lock hole and the locking hole are staggered, and the locking piece cannot enter the locking hole, it is indicated that the oven door is not locked or part of the oven door is opened, and potential safety hazards exist; an operator is reminded to lock the oven door; the structure is low in manufacturing cost and can be used for simultaneously locking a plurality of oven doors.

Description

Technical Field

[0001] The utility model relates to the technical field of oven locking mechanisms, in particular to an oven interlocking mechanism. Background Art

[0002] Ovens with multiple doors are a common type of oven in the industrial field. They are often used for drying and heat treatment of semiconductors, sterilizing medical devices, and drying paint. The oven has a transmission line inside, and multiple doors are opened along the side of the transmission line to connect to the drying chamber. The operator can open the oven door at different positions to work at the corresponding transmission line.

[0003] Although this multi-door oven structure makes it convenient for operators to inspect various parts of the cavity, the number of oven doors also increases safety hazards. The oven is a high-temperature environment. Currently, conventional oven doors have no locking function. The original structure of the oven door is locked and sealed by two rotating handles aligned, and there is no locking function. The operator can manually open and close the oven door at will without control, which poses a safety risk.

[0004] To ensure the safety of operators and improve the safety level of the oven, existing technology can apply a safety lock to each door, and manage the opening and closing of the door safely and effectively through the combined control of a mechanical key lock and an electronic program, but this solution is relatively expensive. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a low-cost oven interlocking mechanism capable of locking an oven door.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] An oven interlocking mechanism includes: a rotating rod, a first limiting member, a second limiting member, a locking structure, and a locking member;

[0008] The oven door is provided with a rotary handle; when the rotary handle is in a first state and the oven door is closed, the rotary handle locks the oven door; when the rotary handle is in a second state, the rotary handle unlocks the oven door;

[0009] The rotating rod is arranged on one side of the oven door;

[0010] There are a plurality of the first limiting members and the second limiting members, and all of them are fixed on the rotating rod;

[0011] The fixing device is arranged on the oven body and has a lock hole;

[0012] The rotating rod is provided with a locking hole on its rod body, and the rotating rod rotates from its axis to align the locking hole with the locking hole. At this time, the locking member is used to be inserted into the locking hole and the locking hole;

[0013] When all the oven doors are closed and the rotary handle is in the first state, the first limiting member and the second limiting member are located to the outside of the oven door, and at this time, the lock hole is aligned with the locking hole;

[0014] When part or all of the oven door is opened, the corresponding rotary handle is in the second state. At this time, the first limit member abuts against the inner wall of the oven door or the rotary handle, or the second limit member abuts against the oven door, and the lock hole is staggered.

[0015] In the oven interlocking mechanism as described above, when all the oven doors are closed and the rotary handle is in the first state, the first limit member is located on the rotation path of the rotary handle when switching from the first state to the second state, so as to prevent the rotary handle from unlocking the oven door.

[0016] As described above, in the oven interlocking mechanism, when part or all of the oven doors are opened to a first angle, the first limiting member is located on one side of the inner wall of the oven door, and the second limiting member abuts against the bottom or outer wall of the oven door, causing the lock hole to be staggered.

[0017] In the oven interlocking mechanism as described above, when all the oven doors are closed and the rotary handle is in the second state, the first limiting member is located outside the oven door and abuts against the rotary handle, causing the locking hole to be staggered.

[0018] As described above, the oven interlocking mechanism, the oven door has a rotating shaft edge and a free edge arranged opposite to the rotating shaft edge, the rotating handle is arranged on the side close to the free edge, the first limiting member is arranged on the side close to the free edge; the second limiting member is arranged on the side close to the rotating shaft edge.

[0019] In the oven interlocking mechanism as described above, when the oven door is opened, the straight-line distance from the free edge to the oven body is D, the length of the first limiting member is greater than D, and the length of the second limiting member is less than D.

[0020] The oven interlocking mechanism as described above further comprises a lock body provided on the oven body, the locking element is configured as a lock tongue in the lock body, and the lock hole is used for allowing the lock tongue to pass through.

[0021] The oven interlocking mechanism as described above further comprises a plurality of rotating rod fixing members fixed on the oven body, wherein the rotating rod fixing members are used to fix the rotating rod on the oven body; along the axial direction of the rotating rod, the rotating rod fixing members are distributed on both sides of the oven door.

[0022] In the oven interlocking mechanism as described above, the rotating rod fixing member includes a first fixing block and a second fixing block that are detachably connected. The first fixing block and the second fixing block cooperate with each other to enclose and fix the rotating rod on the oven body.

[0023] As described above, in the oven interlocking mechanism, an anti-friction block is provided in the rotating rod fixing member, and the anti-friction block is located between the rotating rod fixing member and the rotating rod.

[0024] The beneficial effects of the utility model are:

[0025] The mechanism has a simple structure and low manufacturing cost, and includes a rotating rod, a first limit piece, a second limit piece, and a locking piece. When in use, the connecting rod is rotated with the connecting rod shaft as the rotation center, driving the first limit piece and the second limit piece to rotate synchronously. Only when all the oven doors are closed and the rotating handle is in the first state, the first limit piece and the second limit piece are located to the outside of the oven door, and the first limit piece and the second limit piece jointly lock the oven door; at this time, the lock hole is aligned with the locking hole, and the locking piece is inserted into the lock hole and the locking hole, that is, all the oven doors are locked at the same time; if some or all of the oven doors are not closed and the rotating handle is in the second state and the oven door is not locked, the lock hole is staggered with the locking hole, and the locking piece cannot be inserted into the locking hole, which means that the oven door is not locked or some of the oven doors are open, which poses a safety hazard and can remind the operator to lock the oven door in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the overall structure of an oven interlocking mechanism and an oven door in this embodiment;

[0028] Figure 2 This is one of the state diagrams of an oven interlocking mechanism and an oven door in this embodiment;

[0029] Figure 3 This is the second state diagram of an oven interlocking mechanism and oven door in this embodiment;

[0030] Figure 4 This is the third state diagram of an oven interlocking mechanism and oven door in this embodiment;

[0031] Figure 5This is the fourth state diagram of an oven interlocking mechanism and an oven door in this embodiment;

[0032] Figure 6 1 is a schematic structural diagram of a rotating rod fixing member;

[0033] Figure 7 This is an exploded view of the rotating rod fixings;

[0034] Figure 8 It is a structural diagram of the rotating rod, lock body, handle and locking member;

[0035] Figure 9 It is a structural diagram of the rotating rod, the locking structure, the handle and the locking member;

[0036] The reference numerals are as follows:

[0037] 1-rotating rod; 11-locking hole; 12-handle; 2-first limiter; 3-second limiter; 4-locking structure; 5-locking member; 6-oven door; 61-rotating shaft edge; 62-free edge; 63-locking plate; 7-rotating handle; 71-handle lock tongue; 8-lock body; 81-key; 9-rotating rod fixing member; 91-first fixing block; 92-second fixing block; 93-anti-friction block. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0039] For example, the oven used in lithium battery coating equipment typically reaches a maximum internal temperature of around 160°C during operation. Opening the oven door at this temperature presents a significant risk of burns. Existing technology can only mitigate this risk through personnel training, but this doesn't guarantee that everyone will operate in compliance.

[0040] To meet the high safety requirements of automated equipment, the opening and closing of oven doors must be linked to the equipment's operating status. The oven must be stopped before any door is opened, and all doors must be closed before the oven can operate. To improve safety, existing technology allows each oven door to be equipped with a safety lock. This secure and effective management of oven door opening and closing is achieved through the combined control of a mechanical key lock and electronic program.

[0041] Reference Figures 1 to 5 、 Figure 9 , this embodiment provides an oven interlocking mechanism, comprising: a rotating rod 1, a first limiting member 2, a second limiting member 3, a locking structure 4 and a locking member 5;

[0042] The oven door 6 has a rotating handle 7; the oven door frame side has a lock plate 63 corresponding to the rotating handle 7, and the rotating handle 7 is provided with a handle lock tongue 71. When the rotating handle 7 is in the first state (refer to Figure 2 ) and the oven door 6 is closed, the handle lock tongue 71 is located in the lock plate 63, and the rotating handle 7 locks the oven door 6; when the rotating handle 7 is in the second state (refer to Figure 3 ), the handle lock tongue 71 is disengaged from the lock plate 63, and the rotating handle 7 does not lock the door 6;

[0043] Among them, it can be understood that: the oven door 6 is a swing door;

[0044] The rotating rod 1 is arranged on the upper side or the lower side of the oven door 6;

[0045] There are a plurality of the first limiting members 2 and the second limiting members 3, and all of them are fixed on the rotating rod 1;

[0046] The locking structure 4 is fixed on the oven body and has a locking hole (not shown in the figure);

[0047] The rotating rod 1 is provided with a locking hole 11. The rotating rod 1 rotates on its axis so that the locking hole is aligned with the locking hole 11. At this time, the locking member 5 is used to be inserted into the locking hole and the locking hole 11. The locking member 5 restricts the rotation of the rotating rod 1, thereby ensuring that the positions of the first limiting member 2 and the second limiting member 3 relative to the oven door remain unchanged.

[0048] Reference Figure 2 When all the oven doors 6 are closed and the rotary handle 7 is in the first state, the first limiting member 2 and the second limiting member 3 are located on the outside of the oven doors 6. At this time, the locking hole is aligned with the locking hole 11, and the locking member 5 can be inserted into the locking hole and the locking hole 11 to lock all the oven doors 6.

[0049] Reference Figures 3 to 5When part or all of the oven door 6 is opened and the opening of the oven door 6 is large enough, the oven door 6 cannot affect the movement of the first limiter 2, and the rotating rod 1 can rotate normally and be locked. The second movable member 3 is close to the rotation position of the oven door 6. After the oven door 6 is opened, it will block the rotation of the second movable member 3, thereby affecting the normal rotation of the rotating rod 1. The lock hole and the locking hole 11 cannot be aligned and locked, and the locking member 5 cannot enter the locking hole 11, which means that the oven door 6 is not locked or part of the oven door 6 is open, which poses a safety hazard, reminding the operator to lock the oven door in time. Figure 2 In one embodiment, when all the oven doors 6 are closed and the rotary handle 7 is in the first state, the first limit member 2 is located on the rotation path of the rotary handle 7 when it switches from the first state to the second state, so as to prevent the rotary handle 7 from unlocking the oven door 6, thereby preventing the operator from opening the oven door during the operation of the oven and avoiding scalding the operator.

[0050] Reference Figure 4 In one embodiment, when part or all of the oven door 6 is at an angle of 20°-90°, the rotating rod 1 is rotated, and the first limiting member 2 can be rotated to the side of the inner wall of the oven door 6, while the second limiting member 3 abuts against the bottom or outer wall of the oven door 6, causing the locking hole and the locking hole 11 to be offset, and the locking member 5 cannot be inserted into the locking hole 11, indicating that the oven door 6 is not locked or partially open.

[0051] Reference Figure 3 In one embodiment, when all the oven doors 6 are closed and the rotary handle 7 is in the second state, the first limit member 2 is located outside the oven door 6 and abuts against the rotary handle 7, causing the lock hole and the lock hole 11 to be offset, and the locking member 5 cannot be inserted into the lock hole 11, indicating that the oven door 6 is not locked or part of the oven door 6 is open.

[0052] Specifically, the oven door 6 has a rotating shaft edge 61 and a free edge 62 arranged opposite to the rotating shaft edge 61, the rotating handle 7 is arranged on the side close to the free edge 62, the first limiting member 2 is arranged on the side close to the free edge 62; the second limiting member 3 is arranged on the side close to the rotating shaft edge 61.

[0053] More specifically, when the oven door 6 is open, the straight-line distance from the free edge 62 to the oven body is D, the length of the first limit member 2 is greater than D, and the length of the second limit member 3 is less than D; satisfying the above relationship, when the oven door 6 is not completely closed, if all the oven doors 6 are opened to the first angle, as the rotating rod 1 rotates, the swing arc of the free end of the first limit member 2 is larger than the swing arc of the free end of the second limit member 3, the first limit member 2 can be rotated to the inside of the oven door 6, and the second limit member 3 will resist the oven door 6. At this time, if the rotating rod 1 is not rotated and the oven door 6 is forcibly closed, the first limit member 2 will be stuck between the oven door 6 and the oven body, making it impossible for the rotating handle 7 to lock the oven door 6, and the locking hole and the locking hole 11 always remain staggered.

[0054] Reference Figure 9 In any of the above embodiments, the locking structure 4 can be a sheet metal sheet with a lock hole fixed on the oven body, or a sheet plastic sheet with a lock hole, or any component with a certain structural strength and a lock hole.

[0055] Reference Figure 8 In one embodiment, the oven further comprises a lock body 8 provided on the oven body, the locking member 5 is configured as a lock tongue in the lock body 8, and the lock hole is used for the lock tongue to pass through.

[0056] The locking structure 4 may be configured as a structure with a lock hole in the lock body 8 .

[0057] The lock body 8 has a keyhole (not shown in the figure) for inserting a key 81. By inserting the key 81 into the keyhole and rotating the key 81, the locking member 5 can be driven to insert into the lock hole and the locking hole 11, or to pull the locking member 5 out of the locking hole 11.

[0058] It is understandable that when the lock hole is not aligned with the locking hole 11 , the side wall of the rotating rod 1 will press against the locking member 5 , making the key 81 unable to rotate. Only when the lock hole is aligned with the locking hole 11 can the key 81 be rotated.

[0059] Reference Figure 1 、 Figure 6 、 Figure 7 In any of the above embodiments, it also includes a plurality of rotating rod fixing members 9 fixed on the oven body, and the rotating rod fixing members 9 are used to fix the rotating rod 1 on the oven body; along the axial direction of the rotating rod 1, the rotating rod fixing members 9 are distributed on both sides of the oven door 6.

[0060] Specifically, the rotating rod fixing member 9 includes a first fixing block 91 and a second fixing block 92 that are detachably connected. The first fixing block 91 and the second fixing block 92 cooperate with each other to enclose and fix the rotating rod 1 on the oven body.

[0061] Specifically, an anti-friction block 93 is provided in the rotating rod fixing member 9, and the anti-friction block 93 is located between the rotating rod fixing member 9 and the rotating rod 1. The anti-friction block 93 is used to reduce the friction force caused by the rotating rod fixing member 9 to the rotating rod 1 when the rotating rod 1 rotates;

[0062] More specifically, the anti-friction block 93 is a Teflon sleeve, which has excellent dielectric properties and chemical corrosion resistance, high temperature resistance, high pressure resistance, non-water absorption, non-stickiness, non-conductivity, low friction coefficient and no aging, and is suitable for the application scenarios in this embodiment.

[0063] In any of the above embodiments, a handle 12 is fixedly provided on the rotating rod 1, and the handle 12 is arranged perpendicular to the axial direction of the rotating rod 1. The operator can hold the handle 12 and rotate the handle 12 circumferentially along the rotating rod 1, which can drive the rotating rod 1, the first limit member 2 and the second limit member 3 to rotate synchronously; it is more convenient to apply force to rotate the rotating rod 1.

[0064] More specifically, in order to prevent the operator from being burned by heat transfer from the oven, a heat-insulating protective cover may be provided on the handle 12 .

[0065] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An oven interlocking mechanism, characterized in that: include: A rotating rod (1), a first limiting member (2), a second limiting member (3), a locking structure (4), and a locking member (5); The oven door (6) is provided with a rotating handle (7); when the rotating handle (7) is in a first state and the oven door (6) is closed, the rotating handle (7) locks the oven door (6); when the rotating handle (7) is in a second state, the rotating handle (7) unlocks the oven door (6); The rotating rod (1) is arranged on one side of the oven door (6); There are a plurality of the first limiting members (2) and the second limiting members (3), and both are fixed on the rotating rod (1); The locking structure (4) is fixed on the oven body, and the locking structure (4) has a locking hole; The rotating rod (1) is provided with a locking hole (11) on its rod body, and the rotating rod (1) is rotated on its axis to align the locking hole with the locking hole (11), and at this time, the locking member (5) is used to be inserted into the locking hole and the locking hole (11); When all the oven doors (6) are closed and the rotating handle (7) is in the first state, the first limiting member (2) and the second limiting member (3) are located outside the oven door (6), and at this time, the locking hole is aligned with the locking hole (11); When part or all of the oven door (6) is opened, the corresponding rotary handle (7) is in the second state. At this time, the first limiting member (2) abuts against the inner wall of the oven door (6) or the rotary handle (7), or the second limiting member (3) abuts against the oven door (6), and the lock hole and the locking hole (11) are staggered.

2. The oven interlocking mechanism according to claim 1, characterized in that: When all the oven doors (6) are closed and the rotating handle (7) is in the first state, the first limiting member (2) is located on the rotation path of the rotating handle (7) when it switches from the first state to the second state, so as to prevent the rotating handle (7) from unlocking the oven door (6).

3. The oven interlocking mechanism according to claim 1, characterized in that: When part or all of the oven door (6) is opened to a first angle, the first limiting member (2) is located on one side of the inner wall of the oven door (6), and the second limiting member (3) abuts against the bottom or outer wall of the oven door (6), causing the locking hole and the locking hole (11) to be staggered.

4. The oven interlocking mechanism according to claim 1, characterized in that: When all the oven doors (6) are closed and the rotating handle (7) is in the second state, the first limiting member (2) is located outside the oven door (6) and abuts against the rotating handle (7), causing the locking hole and the locking hole (11) to be offset.

5. The oven interlocking mechanism according to any one of claims 1 to 4, characterized in that: The oven door (6) has a rotating shaft edge (61) and a free edge (62) arranged opposite to the rotating shaft edge (61); the rotating handle (7) is arranged on a side close to the free edge (62); the first limiting member (2) is arranged on a side close to the free edge (62); and the second limiting member (3) is arranged on a side close to the rotating shaft edge (61).

6. The oven interlocking mechanism according to claim 5, characterized in that: When the oven door (6) is opened, the straight-line distance from the free edge (62) to the oven body is D, the length of the first limiting member (2) is greater than D, and the length of the second limiting member (3) is less than D.

7. The oven interlocking mechanism according to claim 1, characterized in that: It also includes a lock body (8) arranged on the oven body, the locking member (5) is configured as a lock tongue in the lock body (8), and the lock hole is used for the lock tongue to pass through.

8. The oven interlocking mechanism according to any one of claims 1 to 4, characterized in that: It also includes a plurality of rotating rod fixing members (9) fixed on the oven body, wherein the rotating rod fixing members (9) are used to fix the rotating rod (1) on the oven body; along the axial direction of the rotating rod (1), the rotating rod fixing members (9) are distributed on both sides of the oven door (6).

9. The oven interlocking mechanism according to claim 8, characterized in that: The rotating rod fixing member (9) comprises a first fixing block (91) and a second fixing block (92) which are detachably connected. The first fixing block (91) and the second fixing block (92) cooperate with each other to enclose and fix the rotating rod (1) on the oven body.

10. The oven interlocking mechanism according to claim 8, characterized in that: An anti-friction block (93) is provided in the rotating rod fixing member (9), and the anti-friction block (93) is located between the rotating rod fixing member (9) and the rotating rod (1).

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