Translation type heat preservation door escape lock for refrigeration house

Abstract

The utility model relates to the technical field of escape locks, in particular to a translation type heat preservation door escape lock for a refrigeration house. The first base body is connected with the outer shell, an inner unlocking hole is formed in the first base body, a second base body and a rotary unlocking mechanism are fixed to one side of the first base body, locking mechanisms are connected to the two sides of the second base body in a sliding mode, a blocking mechanism is connected to the lower portion of the second base body in a sliding mode, a plunger latch is arranged in the second base body, and the inner unlocking hole is formed in the first base body. A lock cylinder is arranged on the side, away from the first base body, of the rotary unlocking mechanism. The clamping groove in the clamping shaft and the clamping portion on the plunger latch form an interlocking matching area, accuracy of locking and unlocking actions is guaranteed, operation efficiency and safety of the lock are improved, the blocking mechanism is arranged, the connecting shaft is connected with the clamping groove in a clamped mode, the clamping shaft is prevented from automatically resetting under the action of the first spring, and safety of the lock is improved. And the escape lock is kept in a closed state without external force.

Description

Technical Field

[0001] The utility model relates to the technical field of escape locks, in particular to a translational thermal insulation door escape lock for a cold storage. Background Art

[0002] The cold storage sliding insulated door is a special door structure designed for cold storage and frozen warehouses. It is mainly used to ensure efficient isolation of the internal and external environments of the cold storage, maintain a constant internal low temperature, and take into account the convenience of personnel entry and exit and cargo handling. The door leaf slides open and closed in the horizontal direction. Compared with the traditional hinged door, the sliding design saves space inside the cold storage and avoids occupying the aisle when the door is opened. It is especially suitable for cold storage environments with limited space or frequent handling of large goods.

[0003] The cold storage sliding insulated door escape lock is an emergency unlocking device designed specifically for the sliding insulated door in the cold storage environment. It is designed to ensure that when the door is locked, the inside personnel can quickly and effectively open the door for safe escape.

[0004] There are two main problems with domestic escape locks for insulated sliding doors. First, the structure is too simple and the openings are large, which can easily lead to internal cold conduction and icing, resulting in failure. Second, due to differences in door structure and installation environment, there may be situations where the lock cannot be installed or the escape function is lost after installation. We have taken targeted improvement measures.

[0005] Therefore, the present application provides a translational thermal insulation door escape lock for a cold storage to overcome the defects of the prior art. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the existing locks have large openings, which easily lead to internal cold conduction and ice failure; it is difficult to adapt to different door structures and installation environments, resulting in the locks being unable to be installed and the escape function being lost after installation.

[0007] The technical solution of the utility model provides a translational insulated door escape lock for cold storage, which is composed of key components such as an outer shell, a first base, a second base, a rotation unlocking mechanism, a locking mechanism, a blocking mechanism and a lock core. Its structure includes an outer shell and a first base tightly connected to the outer shell. An inner unlocking hole is cleverly arranged inside the first base. In addition, the second base and the rotation unlocking mechanism are firmly installed on one side of the first base. The locking mechanism is flexibly connected to both sides of the second base, and the blocking mechanism is slidably connected below it. It is worth noting that a card shaft is specially arranged inside the second base, and a lock core is arranged on the side of the rotation unlocking mechanism away from the first base.

[0008] Outer shell: As the basis of the overall structure, its front wall is provided with a first connecting groove and a second connecting groove distributed up and down. The first connecting groove at the top is connected to the locking mechanism, and the second connecting groove at the bottom is connected to the lock core. The outer shell is firmly connected to the first base through the lower connecting piece.

[0009] The first base body has an inner unlocking hole inside and is closely connected to the outer shell. The second base body and the rotation unlocking mechanism are fixed on one side. The first base body is equipped with a lower connecting piece for clamping and fixing with the outer shell.

[0010] The second base body: The two sides are respectively connected to the locking mechanism by sliding, and the bottom is connected to the blocking mechanism by sliding. The second base body is provided with a card shaft, and the side away from the first base body is equipped with a lock core. The second base body is provided with vertical side grooves on both sides, and the interior includes a vertical through hole 1 and a horizontal through hole 2, which are partially connected to form a specific internal channel structure.

[0011] Locking mechanism: It consists of a support frame, a handle, a clamping shaft and a spring. The support frame slides in the groove on the side of the second base, and the handle is screwed on it for easy operation. The vertical clamping shaft is fixed inside the support frame, and a clamping groove is provided at the top of the clamping shaft for the clamping shaft to pass through, and a slope is designed at the bottom. A spring is wound around the outside of the clamping shaft to provide a reset elastic force.

[0012] Blocking mechanism: It consists of two opposing slides, a baffle, a connecting shaft, a fixed column, and springs 2 and 3. The two slides are welded with a baffle at one end and connected in the middle by a connecting shaft, which abuts against the slope at the bottom of the clamping shaft. The baffle is movably connected to the horizontal fixed column, and the fixed column surrounds springs 2 and 3, which are separated by a baffle.

[0013] The rotary unlocking mechanism comprises a chassis rotatably connected to the first base body, on which a rotary ramp and a clamping block 1 are welded. The rotary ramp is placed between the baffle and the first base body and participates in the unlocking process.

[0014] Lock core: It is composed of a core shaft sleeve, a core shaft and a second clamping block. The core shaft sleeve is fixed to the first base body, contains the core shaft, and the second clamping block is attached to the outer wall of the shell, which together realize the lock core function.

[0015] In summary, the cold storage sliding insulated door escape lock system ensures the rapid unlocking and opening of the door lock in an emergency through precise coordination between various components, thereby ensuring the safe escape of personnel.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a translational heat preservation door escape lock for cold storage, which cleverly utilizes the preset missing position of the card shaft and the corresponding missing position of the lock bolt itself to construct accurate locking and unlocking positions and realize delicate linkage of the structure. Specific features include:

[0017] Clever positioning: The design cleverly uses a specific empty space inside the card shaft, namely the card slot, and the corresponding notch on the lock bolt, namely the card connection part, to form a precise interlocking matching area, ensuring the accuracy of locking and unlocking actions, thereby improving the operating efficiency and safety of the lock. By setting a spring 1, the card shaft can be automatically reset. By setting a blocking mechanism and connecting the shaft and the card slot, the card shaft can be prevented from automatically resetting under the action of the spring 1, ensuring that the escape lock remains in a closed state without external force.

[0018] Universal installation: The unlocking structure adopts a spiral ramp design. This feature enables the lock to adapt to the installation requirements of most existing lock bodies on the market. There is no need for additional secondary development or mold making for specific lock bodies, which greatly simplifies the installation process, reduces application costs, and enhances the market adaptability of the product.

[0019] Flexible Adaptation: The latch is designed to be extendable externally, which means that its installation position is no longer restricted by a fixed length. Users can freely adjust the latch length according to the actual application scenario, ensuring that the lock can be successfully installed under various complex spatial conditions, thereby improving the flexibility and convenience of installation.

[0020] Efficient heat preservation and internal escape: The size of the internal unlocking hole is M8, which significantly reduces the area of ​​heat transfer compared to larger perforations, helping to reduce the possibility of cold air leakage. At the same time, with effective lubrication and sealing measures, it is ensured that the lock will not fail due to condensation, freezing and other problems in low-temperature environments, thereby ensuring the long-term stable operation of the lock in low-temperature environments such as cold storage, avoiding affecting the normal function of the escape function, and the escape lock can be opened inside the cold storage through the internal unlocking hole.

[0021] In summary, the lock is innovative and practical in design. Through its sophisticated positioning mechanism, universal installation method, flexible latch length adjustment and efficient heat preservation performance, it not only ensures its convenient installation and reliable operation in various scenarios, but also takes into account the good sealing and functionality in low-temperature environments such as cold storage, effectively avoiding the risk of escape failure caused by cold leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0023] Figure 2 It is a rear view of an embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the internal structure of part of the embodiment of the utility model;

[0025] Figure 4 It is a side view of the internal structure of part of the embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the escape lock in the open state according to the embodiment of the utility model;

[0027] Figure 6 It is a partial cutaway schematic diagram of the second substrate of the embodiment of the utility model;

[0028] Figure 7 It is a schematic diagram of the rotary unlocking mechanism and the lock cylinder of an embodiment of the utility model;

[0029] Figure 8 A side view of the rotary unlocking mechanism and the lock cylinder according to an embodiment of the utility model;

[0030] Fig. 9 This is a schematic diagram of the internal structure of the escape lock in the closed state according to an embodiment of the utility model.

[0031] Among them, 1. outer shell; 11. first connecting groove; 12. second connecting groove; 2. first base; 21. inner unlocking hole; 22. lower connecting piece; 3. second base; 31. side groove; 32. through hole one; 33. through hole two; 4. locking mechanism; 41. support frame; 42. handle; 43. clamping shaft; 44. clamping groove; 45. ramp; 46. spring one; 5. blocking mechanism; 51. slide plate; 52. baffle; 53. connecting shaft; 54. fixing column; 55. spring two; 56. spring three; 6. signal transmission mechanism; 7. latch; 71. clamping piece; 8. rotation unlocking mechanism; 81. chassis; 82. rotating ramp plate; 83. clamping block one; 9. lock core; 91. spindle sleeve; 92. spindle; 93. clamping block two. DETAILED DESCRIPTION

[0032] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below in conjunction with specific diagrams; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the utility model.

[0033] Example

[0034] As attached Figure 1 To Attachment Fig. 9As shown: a translational insulated door escape lock for a cold storage, comprising an outer shell 1, which is hollow and has an open rear side, a first base 2 connected to the rear side of the outer shell 1, a second base 3 fixed to the front side of the first base 2 and rotatably connected to a rotary unlocking mechanism 8, the second base 3 is arranged above the rotary unlocking mechanism 8, locking mechanisms 4 are slidably connected to both sides of the second base 3, a blocking mechanism 5 is horizontally slidably connected to the lower end of the second base 3, the blocking mechanism 5 can prevent the locking mechanism 4 from moving up and down, a latch 7 is horizontally slidably connected to the second base 3, a lock core 9 is fixedly connected to the side of the rotary unlocking mechanism 8 away from the first base 2, the lock core 9 cooperates with the rotary unlocking mechanism 8 to open the escape lock, thereby removing the latch 7 from the second base 3.

[0035] As attached Figure 1 To Attachment Figure 2 As shown: a first connecting groove 11 and a second connecting groove 12 are provided on the front wall of the outer shell 1, wherein the first connecting groove 11 is located above the second connecting groove 12, and the second connecting groove 12 is sleeved on the outside of the lock core 9 to prevent the lock core 9 from shaking.

[0036] As attached Figure 1 To Attachment Figure 4 As shown: a horizontally arranged inner unlocking hole 21 is opened in the first substrate 2, and the inner unlocking hole 21 is at the same height as the baffle 52. The staff can use a rod to insert into the inner unlocking hole 21 from the rear side of the first substrate 2, thereby pushing the baffle 52 to move forward. The diameter of the inner unlocking hole 21 is M8 (the diameter of the hole is 8 mm). A lower connecting piece 22 is fixed to the front side of the first substrate 2, and the outer shell 1 and the first substrate 2 are clamped together by the lower connecting piece 22. In order to further strengthen the connection between the outer shell 1 and the first substrate 2, the outer shell 1 and the first substrate 2 can also be connected by glue or welding.

[0037] In order to prevent the cold air in the cold storage from escaping from the inner unlocking hole 21 and causing the escape lock to malfunction, a protective film can be sealed on the surface of the inner unlocking hole 21, that is, the rear surface of the first substrate 2, or a removable cover can be provided. In order to facilitate the workers to escape from the cold storage, the device is also equipped with a nylon round rod with a sharpened end to facilitate the workers to pierce the protective film and use the other end to move the baffle forward, thereby adjusting the escape lock to the open state, thereby opening the sliding thermal insulation door and completing the escape.

[0038] As attached Figure 1 To Attachment Figure 6 and attached Fig. 9As shown: a vertical side groove 31 is provided on each side of the second substrate 3, a vertical through hole 1 32 and a horizontal through hole 2 33 are provided in the second substrate 3, and the through hole 1 32 and the through hole 2 33 are partially connected, that is, the vertical axial section of the through hole 1 32 is parallel to the vertical axial section of the through hole 2 33 but does not overlap.

[0039] The locking mechanism 4 includes a support frame 41, and the two sides of the support frame 41 are slidably connected to the side grooves 31 on the two sides of the second base body 3, and a handle 42 is screwed on the support frame 41, and the handle 42 partially passes through the first connecting groove 11 and is exposed to the outside, so as to facilitate the staff to unlock and lock. A vertically arranged card shaft 43 is fixedly connected in the support frame 41, and the card shaft 43 is slidably connected with the card connection portion 71, and a card slot 44 for the latch 7 to pass through is provided in the card shaft 43, and the height of the card slot 44 is not less than the diameter of the radial cross-section of the through hole 32, and a slope 45 is provided at the bottom end of the card shaft 43, and a spring 46 is sleeved around the outer periphery of the card shaft 43, and the card shaft 43 and the spring 46 are both arranged in the through hole 32, wherein one end of the spring 46 is fixedly connected to the support frame 41, and the other end is fixedly connected to the horizontal connecting surface arranged in the through hole 32, and the spring 46 can automatically reset the card shaft 43 in the absence of external force and the blocking mechanism 5.

[0040] The blocking mechanism 5 includes two slide plates 51 arranged opposite to each other, each slide plate 51 is fixed with an ear plate at the front end bottom, and a connecting shaft 53 (which can also be fixedly connected) is rotatably connected between the two ear plates, and the connecting shaft 53 can be against the slope 45 (i.e. Figure 5 ), a baffle 52 is welded at the rear end of the two skateboards 51, and the baffle 52 is welded by a vertically arranged square plate and a horizontally arranged semicircular plate, the square plate is arranged in front of the inner unlocking hole 21, and the semicircular plate is welded to the bottom of the square plate, with the arc edge facing the first substrate 2 and can be against the rotating ramp 82, and a horizontally arranged fixed column 54 is movably connected in the square plate of the baffle 52, and the baffle 52 can slide on the fixed column 54, one end of the fixed column 54 is fixedly connected to the front wall of the first substrate 2, and a spring 2 55 and a spring 3 56 are sleeved around the outside of the fixed column 54, the spring 2 55 is fixed between the baffle 52 and the ear plate of the skateboard 51, and the spring 3 56 is fixed between the baffle 52 and the front side wall of the first substrate 2.

[0041] The latch 7 is provided with a clamping portion 71, which is a groove opened 360 degrees around the surface of the latch 7. The axial cross-section of the groove is two semicircles arranged opposite to each other, with two semicircular arcs on the inner side and two straight lines on the outer side, and the radial cross-section is a circle. When the latch 7 is fully inserted into the second through hole 33, that is, the left end of the latch 7 is against the outer shell 1, the clamping shaft 43 can slide up and down in the first through hole 32 along the clamping portion 71, but the latch 7 can only be pulled out of the second through hole 33 when the clamping portion 71 is completely located in the clamping groove 44.

[0042] Figure 3 , 4 The state shown in 5 is the open state of the escape lock. At this time, the height of the second through hole 33 is in the interval where the card slot 44 is located. The latch 7 can move freely in the second through hole 33 and the card slot 44. The card shaft 43 is in the initial position, that is, the position after resetting. At this time, the sliding thermal insulation door can be opened.

[0043] Attached Fig. 9 The escape lock is shown in the locked state. At this time, the connecting shaft 53 is stuck in the slot 44 under the action of the second spring 55 and the third spring 56. At this time, the latch 7 is engaged with the side wall of the locking shaft 43 through the engaging portion 71. The latch 7 is locked and cannot be pulled out of the second through hole 33.

[0044] As attached Figure 1 To Attachment Figure 4 As shown: a signal transmission mechanism 6 is fixed on the first base body 2, and the signal transmission mechanism 6 is arranged just above the locking mechanism 4. The signal transmission mechanism 6 includes a micro switch at the bottom and a device capable of transmitting a signal, such as a micro signal generator. The micro switch and the micro signal generator are existing devices and will not be described in detail here. When the card shaft 43 is in the initial position or returns to the initial position, the support frame 41 will touch the micro switch, so that the signal generator transmits a signal to inform the staff of the working status of the escape lock, and the signal transmission mechanism 6 can also be used in conjunction with an external control system.

[0045] The rotary unlocking mechanism 8 includes a circular chassis 81, a groove is provided on the front side of the first substrate 2, a circular slide groove is provided on the side wall of the groove, a connecting block is fixed on the side wall of the chassis 81, the chassis 81 and the first substrate 2 are rotatably connected through the circular slide groove and the connecting block, a rotating ramp 82 and a clamping block 83 are welded on the chassis 81, the clamping block 83 is arranged between the rotating ramp 82 and the lock cylinder 9, the rotating ramp 82 is located between the semicircular plate of the baffle 52 and the chassis 81, the rotating ramp 82 is fixed to the arc plate at the edge of the chassis 81, the arc is between 90° and 270°, 180° in this embodiment, and the height gradually increases from one end to the other end, Figure 3 , Figure 4All the escape locks are shown in the open state.

[0046] The lock core 9 includes a spindle sleeve 91, the outer wall of which is fixedly connected to the inner wall of the second connecting groove 12, for example, by gluing. A spindle 92 is embedded in the spindle sleeve 91, and the spindle 92 can only be installed from the side of the spindle sleeve 91 close to the first base body 2. The spindle 92 is fixedly connected to the chassis 81, and a lock hole is provided in the spindle 92 for key insertion. A second block 93 is fixed on the outer wall of the spindle sleeve 91, and the second block 93 can prevent the first block 83 from continuing to rotate.

[0047] When the core shaft 92 and the chassis 81 are rotated, when the block 2 93 collides with the block 1 83, the chassis 81 can be prevented from continuing to drive the rotating ramp 82 to rotate. Before or when the rotating ramp 82 rotates to the point where the block 2 93 collides with the block 1 83, the baffle 52 and the slide plate 51 can be moved forward until the connecting shaft 51 is disengaged from the slot 44. This can be achieved by changing the height of the rotating ramp 82 and the size of the baffle 52.

[0048] It is worth noting that the latch 7 and other components in the escape lock of the present device are fixed on the two doors respectively, that is, the latch 7 is fixed on one of the doors, and the other components are fixed on the other door. The part of the latch 7 that does not enter the second through hole 33 can be lengthened to meet different installation conditions, and a corresponding small hole should be opened at the position corresponding to the inner unlocking hole 21 and the insulation door for use in escape.

[0049] Working method: insert the latch 7 into the second through hole 33, pull the handle 42 to move downward, drive the clamping shaft 43 to move downward through the support frame 41, and the clamping shaft 43 drives the connecting shaft 53 to drive the slide plate 51 to move forward through the slope 45. The clamping shaft 43 slides down in the through hole 1 32 until the connecting shaft 53 is clamped with the clamping groove 44. At this time, the outer wall of the clamping shaft 43 is clamped with the clamping part 71 of the latch 7, and the locking is completed;

[0050] When unlocking, insert the key into the spindle 92, and turn the key counterclockwise to drive the rotating ramp 82 to rotate through the spindle 92 and the chassis 81, thereby abutting against the semicircular plate of the baffle 52. As the rotating ramp 82 rotates, the baffle 52 and the slide plate 51 move forward until the connecting shaft 51 is separated from the card slot 44. At this time, the card shaft 43 automatically moves upward to the initial position under the action of the spring 1 46. At this time, the latch 7 can be pulled out of the through hole 2 33, and the translational thermal insulation door can be translated and opened;

[0051] If a worker wants to open the sliding thermal insulation door in the cold storage, the worker can take out a nylon round rod, insert the nylon round rod from the inner unlocking hole 21, and apply a forward force to the square plate of the baffle 52 to move the slide plate 51 forward until the connecting shaft 51 is disengaged from the slot 44. At this time, the locking shaft 43 automatically moves upward to the initial position under the action of the spring 1 46. At this time, the latch 7 can be pulled out of the through hole 2 33, and the sliding thermal insulation door can be opened by sliding, and the worker can leave the cold storage and complete the escape.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention should fall within the technical scope of the present invention.

Claims

1. A translational thermal insulation door escape lock for cold storage, characterized in that: The invention comprises an outer shell (1); a first base (2) connected to the outer shell (1); an inner unlocking hole (21) is provided in the first base (2); a second base (3) and a rotation unlocking mechanism (8) are fixed to one side of the first base (2); locking mechanisms (4) are slidably connected to both sides of the second base (3); a blocking mechanism (5) is slidably connected to the lower side of the second base (3); a latch (7) is provided in the second base (3); and a lock core (9) is provided on the side of the rotation unlocking mechanism (8) away from the first base (2).

2. The translational thermal insulation door escape lock for cold storage according to claim 1 is characterized in that: A first connecting groove (11) and a second connecting groove (12) are provided on the front wall of the outer shell (1), the first connecting groove (11) is located above the second connecting groove (12), the first connecting groove (11) is connected to the locking mechanism (4), the second connecting groove (12) is connected to the lock core (9), a lower connecting piece (22) is fixed on the first base (2), and the outer shell (1) and the first base (2) are connected by the lower connecting piece (22).

3. The translational thermal insulation door escape lock for cold storage according to claim 1 is characterized by: A vertical side groove (31) is provided on each side of the second base body (3), a vertical through hole 1 (32) and a horizontal through hole 2 (33) are provided in the second base body (3), and the through hole 1 (32) and the through hole 2 (33) are partially connected.

4. The translational thermal insulation door escape lock for cold storage according to claim 3 is characterized by: The locking mechanism (4) comprises a support frame (41), the two sides of the support frame (41) are slidably connected to the side grooves (31) on the two sides of the second base (3), a handle (42) is screwed on the support frame (41), a vertically arranged clamping shaft (43) is fixedly connected in the support frame (41), a clamping groove (44) for the latch (7) to pass through is provided in the clamping shaft (43), a clamping portion (71) is provided in the latch (7), the clamping portion (71) can be clamped with the clamping shaft (43), a slope (45) is provided at the bottom end of the clamping shaft (43), and a spring (46) is sleeved around the outer periphery of the clamping shaft (43) and above the clamping groove (44).

5. The translational thermal insulation door escape lock for cold storage according to claim 4 is characterized in that: The blocking mechanism (5) comprises two slide plates (51) arranged opposite to each other, a baffle plate (52) is welded to one end of the two slide plates (51), a connecting shaft (53) is connected between the two slide plates (51), the connecting shaft (53) abuts against the slope (45), a horizontally arranged fixing column (54) is movably connected in the baffle plate (52), a second spring (55) and a third spring (56) are sleeved around the outside of the fixing column (54), and the second spring (55) and the third spring (56) are separated by the baffle plate (52).

6. The translational thermal insulation door escape lock for cold storage according to claim 5, characterized in that: The rotary unlocking mechanism (8) comprises a chassis (81) rotatably connected to the first base (2), a rotary ramp (82) and a clamping block (83) being welded to the chassis (81), and the rotary ramp (82) is located between the baffle (52) and the first base (2).

7. The translational thermal insulation door escape lock for cold storage according to claim 6, characterized in that: The lock core (9) comprises a core shaft sleeve (91), the core shaft sleeve (91) is fixedly connected to the first base body (2), a core shaft (92) is embedded in the core shaft sleeve (91), and a second clamping block (93) is fixed on the outer wall of the core shaft sleeve (91).

8. The translational thermal insulation door escape lock for cold storage according to claim 1, characterized in that: A signal transmission mechanism (6) is fixed on the first base body (2), and the signal transmission mechanism (6) is arranged directly above the locking mechanism (4).

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