Communication cabinet door lock mechanism and communication cabinet thereof

Abstract

The invention provides a communication cabinet door lock mechanism and a communication cabinet thereof, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The door lock mechanism comprises a lock, a lock rod, a positioning assembly, an insertion rod assembly and a lock hole located in the cabinet body, the lock is fixedly connected to the cabinet door, the upper end of the lock rod is movably connected with the lock, the positioning assembly is hinged to the cabinet door, the middle of the lock rod is connected with the positioning assembly, the insertion rod assembly is connected to the cabinet door and adjacent to the lock hole, and the lock hole is located in the cabinet door. When the lock is in a locked state, the lock rod moves downwards and enables the insertion rod assembly to be embedded into the lock hole, when the lock is in an unlocked state, the lock rod can be separated from the insertion rod assembly, and the insertion rod assembly has the trend of moving upwards and being separated from the lock hole. The door lock mechanism is high in stability.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology and relates to a communication cabinet door lock mechanism and a communication cabinet. Background Art

[0002] Communication cabinets, also known as network cabinets, server cabinets or IT cabinets, are special cabinets used to store and manage telecommunications and information technology equipment such as communication equipment, servers, network switches, routers, patch panels, etc. It not only provides physical protection, but also ensures the heat dissipation, wiring management and maintenance convenience of the equipment.

[0003] The communication cabinet generally includes a cabinet body with a hollow interior, an opening on the side of the cabinet body and a cabinet door that can be opened and closed connected to the opening. A lock is also provided at the cabinet door to ensure that the cabinet door is stably closed on the cabinet body through the lock.

[0004] Since the communication cabinet is relatively large in size, in order to improve the locking stability, a locking rod is connected to the lock. After the lock is actuated, the locking rod is driven to move. After the locking rod is detached from the cabinet body, the cabinet door is unlocked, and after the locking rod is embedded in the cabinet body, the cabinet door is locked.

[0005] Since the locking rod is relatively long, it may bend during use, causing it to be unable to be stably inserted into the cabinet, and its stability is relatively poor.

[0006] A Chinese patent with publication number CN208106130U discloses an electrical cabinet door lock device with a simple structure and easy operation, comprising an electrical cabinet, electrical cabinet doors are installed on both sides of the front of the electrical cabinet, an electrical cabinet door lock is installed in the middle of the right side of the electrical cabinet door, the electrical cabinet door lock is fixed to the electrical cabinet door through a door lock mounting plate, a lock cover is installed above the front end of the electrical cabinet door lock, a lock hole is arranged in the middle of the front end of the electrical cabinet door lock, a threaded lock column is installed in the middle of the electrical cabinet door lock, a door lock fixing nut is fixed above the threaded lock column, a lock core shaft is installed inside the electrical cabinet door lock, a lock core shaft cap is installed at the end of the lock core shaft, a driving gear is installed in the middle of the lock core shaft, an upper rack is connected to the left side of the driving gear, an upper locking rod is connected to the other end of the upper rack, a lower rack is connected to the right side of the driving gear, and a lower locking rod is connected to the other end of the lower rack.

[0007] It can be seen that the locking rod in the above patent is still in the shape of a long rod, and is still easy to bend during use, resulting in poor locking stability between the cabinet door and the cabinet body.

[0008] In addition, the efficiency of cabinet assembly needs to be improved, mainly because the cabinet structure assembly lacks precise positioning, which affects the quality of the finished cabinet. Summary of the invention

[0009] The object of the present invention is to provide a communication cabinet door lock mechanism and a communication cabinet with high stability and compact structure in view of the above-mentioned problems existing in the prior art.

[0010] The purpose of the present invention can be achieved by the following technical solutions: A communication cabinet door lock mechanism, the communication cabinet includes a cabinet body and a cabinet door, the interior of the cabinet body is a cavity and the side opening, the cabinet door is hinged at the side opening of the cabinet body, the door lock mechanism includes a lock, a locking rod, a positioning assembly, an insertion rod assembly and a lock hole located on the cabinet body, the lock is fixedly connected to the cabinet door, the upper end of the locking rod is movably connected to the lock, the positioning assembly is hinged to the cabinet door, the middle part of the locking rod is connected to the positioning assembly, the insertion rod assembly is connected to the cabinet door and the insertion rod assembly is adjacent to the lock hole, when the lock is in a locked state, the locking rod moves downward and can make the insertion rod assembly embedded in the lock hole, when the lock is in an unlocked state, the locking rod can be separated from the insertion rod assembly, and the insertion rod assembly has a tendency to move upward and separate from the lock hole.

[0011] In the above-mentioned communication cabinet door lock mechanism, the positioning assembly includes a base plate, a positioning cylinder, a ball and a spring. The positioning cylinder is sleeved on the middle part of the lock rod and is fixedly connected to the base plate. The above-mentioned base plate is hinged on the inner side of the cabinet door. The inner side of the positioning cylinder has a recessed positioning hole. The above-mentioned spring and the ball are located in the positioning hole. The outer side of the above-mentioned lock rod has an annular recessed positioning groove. Under the elastic force of the spring, the ball has a tendency to be embedded in the positioning groove.

[0012] In the above-mentioned communication cabinet door lock mechanism, the above-mentioned positioning hole, ball and spring form a positioning unit, and the number of the positioning units is several, and the several positioning units are evenly distributed on the inner side of the positioning cylinder in the circumferential direction.

[0013] In the above-mentioned communication cabinet door lock mechanism, the number of the positioning grooves is several, and the several positioning grooves are evenly distributed along the length direction of the lock rod.

[0014] In the above-mentioned communication cabinet door lock mechanism, the positioning groove matches the outer side of the ball and the two are in surface contact.

[0015] In the above-mentioned communication cabinet door lock mechanism, the plug rod assembly includes guide plate one, guide plate two, plug rod and spring two. The above-mentioned guide plate one and guide plate two are both fixedly connected to the cabinet door and guide plate one is located on the upper part of guide plate two. The middle part of the above-mentioned plug rod is successively passed through guide plate one and guide plate two. The above-mentioned spring two is mounted on the plug rod and the plug rod has a tendency to move upward under the elastic force of spring two.

[0016] In the above-mentioned communication cabinet door lock mechanism, the insertion rod has a protruding stop edge, and the two ends of the above-mentioned spring 2 act on the stop edge and the guide plate 2 respectively. Under the elastic force of the spring 2, the stop edge has a tendency to rest against the guide plate 1.

[0017] In the above-mentioned communication cabinet door lock mechanism, the upper end of the insertion rod has a disc-shaped contact plate, the lower end of the above-mentioned locking rod is spherical and the lower end of the locking rod abuts against the contact plate.

[0018] In the above-mentioned communication cabinet door lock mechanism, the above-mentioned locking rod, positioning assembly, insertion rod assembly and lock hole form a locking unit, the number of the locking units is two, and the two locking units are symmetrically arranged at the upper part and the lower part of the lock respectively.

[0019] A communication cabinet comprises the communication cabinet door lock mechanism, and the cabinet body comprises four vertical supporting profiles and four transverse positioning profiles, two of the four transverse positioning profiles are located at the bottom of the cabinet body, and the remaining two transverse positioning profiles are located at the top of the cabinet body, two of the vertical supporting profiles and two of the transverse positioning profiles distributed up and down form a first rectangular bracket through multi-directional positioning, the remaining two vertical supporting profiles and the remaining two transverse positioning profiles form a second rectangular bracket through multi-directional positioning, the first rectangular bracket and the second rectangular bracket are connected by lateral connecting profiles to form a cabinet main frame, and covering panels are respectively provided at the bottom, top and three lateral surfaces of the cabinet main frame, and the remaining one lateral surface is provided with the cabinet door.

[0020] Compared with the prior art, the door lock mechanism of this invention has a middle part of the lock rod supported and positioned by the positioning assembly. Therefore, the lock rod can not only move stably but also be locked in position after movement, thereby ultimately ensuring that the cabinet door in the communication cabinet is stably in an open or closed state, and its stability is relatively high.

[0021] At the same time, since the plug rod assembly does not move with the tilt of the lock rod, the plug rod in the plug rod assembly will only move up and down smoothly under the pushing action of the lock rod, ultimately ensuring that the plug rod can be stably inserted into the lock hole or removed from the lock hole, further improving its stability.

[0022] In addition, since the positioning assembly and the plug-in rod assembly are both arranged on the inner side of the cabinet door, they occupy relatively little space, and the above-mentioned assemblies are not exposed on the outside of the communication cabinet. Therefore, the structure is relatively compact and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural diagram of this communication cabinet.

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of this communication cabinet.

[0025] Figure 3 It is a structural schematic diagram of the connection between the positioning component and the plug-in component in the door lock mechanism.

[0026] Figure 4 It is a schematic diagram of the partial three-dimensional structure of this communication cabinet.

[0027] Figure 5 This is a schematic diagram of the vertical support profile structure of this communication cabinet.

[0028] Figure 6 This is a schematic diagram of the horizontal positioning profile structure of this communication cabinet.

[0029] Figure 7 This is a schematic diagram of the lateral connection profile structure of this communication cabinet.

[0030] In the figure, 1, cabinet body; 1a, lock hole; 2, cabinet door; 3, lock; 4, lock rod; 4a, positioning groove; 5, bottom plate; 6, positioning cylinder; 6a, positioning hole; 7, ball; 8, spring one; 9, guide plate one; 10, guide plate two; 11, plug rod; 11a, stop edge; 11b, contact plate; 12, spring two; 13, vertical support profile; 130, first U-shaped body; 131, first X positioning part; 132, first Z positioning part; 133, groove tongue positioning hole; 14, horizontal positioning profile; 140, second U-shaped body; 141, first snap-in part; 142, second X positioning part; 143, second Y positioning part; 15, lateral connecting profile; 150, positioning tongue; 16, covering panel. DETAILED DESCRIPTION

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

[0032] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0034] Embodiment 1, as Figure 1 As shown, the communication cabinet comprises a cabinet body 1 and a cabinet door 2 . The cabinet body 1 is hollow inside and has a side opening. The cabinet door 2 is hinged at the side opening of the cabinet body 1 .

[0035] When the communication cabinet is in normal use, the cabinet door 2 is closed. When the communication cabinet needs to be inspected or maintained, the cabinet door 2 can be opened.

[0036] like Figure 1 and Figure 2 and Figure 3 As shown, the door lock mechanism includes a lock 3, a locking rod 4, a positioning assembly, an insert rod assembly and a lock hole 1a located on the cabinet 1. The lock 3 is fixedly connected to the cabinet door 2, the upper end of the locking rod 4 is movably connected to the lock 3, the positioning assembly is hinged on the cabinet door 2, the middle part of the locking rod 4 is connected to the positioning assembly, the insert rod assembly is connected to the cabinet door 2 and the insert rod assembly is adjacent to the lock hole 1a. When the lock 3 is in a locked state, the locking rod 4 moves downward and can make the insert rod assembly embedded in the lock hole 1a. When the lock 3 is in an unlocked state, the locking rod 4 can be separated from the insert rod assembly, and the insert rod assembly has a tendency to move upward and separate from the lock hole 1a.

[0037] The lock 3 is an existing rotary lock, which is a mechanical device that achieves locking and unlocking by rotating operation. This type of lock is widely used in various scenarios, such as doors, cabinets, drawers, mechanical equipment, etc., and has the characteristics of simple structure and convenient use. In other words, the rotary lock is a mechanical device that controls the movement of the lock cylinder or the lock tongue by rotating a key or a knob to achieve the locking and unlocking functions.

[0038] Since the lock 3 is an existing rotary lock, only its functions are roughly summarized in the embodiment, and its technical features are not described in detail.

[0039] One end of the lock rod 4 is connected to the lock core of the lock 3, so that the lock core can drive the lock rod 4 to move after rotating.

[0040] Since the positioning assembly is connected to the middle of the locking rod 4, the positioning assembly has two functions: First, since the locking rod 4 is relatively long, the positioning tube 6 supports the middle of the locking rod 4 to prevent the locking rod 4 from bending and deforming due to its excessive length; Secondly, the positioning component has a positioning function, that is, after the locking rod 4 moves, the locking rod 4 and the positioning component can be locked and connected to ensure that the entire communication cabinet can be stably in a locked or unlocked state.

[0041] The plunger assembly is located between the lock hole 1a and the lower end of the lock rod 4, so when the lock rod 4 moves downward, it can push the plunger assembly and make the plunger assembly fit into the lock hole 1a, thus achieving stable locking. Conversely, when the lock rod 4 is driven upward by the lock 3, the plunger assembly is no longer squeezed by the lock rod 4, and the plunger assembly is reset and separated from the lock hole 1a, thus achieving stable unlocking.

[0042] The positioning assembly includes a base plate 5, a positioning cylinder 6, a ball 7 and a spring 8. The positioning cylinder 6 is sleeved on the middle part of the locking rod 4 and is fixedly connected to the base plate 5. The base plate 5 is hinged on the inner side of the cabinet door 2. The inner side of the positioning cylinder 6 has a recessed positioning hole 6a. The spring 8 and the ball 7 are located in the positioning hole 6a. The outer side of the locking rod 4 has an annular recessed positioning groove 4a. Under the elastic force of the spring 8, the ball 7 has a tendency to embed into the positioning groove 4a.

[0043] The positioning tube 6 is hinged on the cabinet door 2 through the bottom plate 5, and the middle part of the locking rod 4 is passed through the positioning tube 6. Such a structure can not only stably support the middle part of the locking rod 4, but also the locking rod 4 will slightly tilt toward its side during the movement. The above structure can also adapt to the movement of the locking rod 4 to avoid the locking rod 4 and the positioning tube 6 from being stuck when the locking rod 4 performs the above movement.

[0044] After the ball 7 is embedded in the positioning groove 4a under the elastic force of the spring 1 8, a stable locking connection can be made between the locking rod 4 and the positioning cylinder 6. Of course, the force applied by the lock 3 can make the ball 7 stably escape from the positioning groove 4a.

[0045] The positioning hole 6a, the ball 7 and the spring 8 form a positioning unit. The number of the positioning units is several and the positioning units are evenly distributed on the inner side of the positioning tube 6 in the circumferential direction.

[0046] A plurality of positioning units can effectively improve the positioning stability between the locking rod 4 and the positioning cylinder 6 .

[0047] There are a plurality of positioning grooves 4 a, which are evenly distributed along the length direction of the locking rod 4 .

[0048] The multiple positioning grooves 4a enable the locking rod 4 to be locked at different positions.

[0049] The positioning groove 4a matches the outer side of the ball 7 and the two are in surface contact.

[0050] Such a structure can improve the positioning stability of the locking rod 4.

[0051] The insertion rod assembly includes a guide plate 1 9, a guide plate 2 10, an insertion rod 11 and a spring 2 12. The guide plate 1 9 and the guide plate 2 10 are both fixedly connected to the cabinet door 2 and the guide plate 1 9 is located on the upper part of the guide plate 2 10. The middle part of the insertion rod 11 is successively passed through the guide plate 1 9 and the guide plate 2 10. The spring 2 12 is sleeved on the insertion rod 11 and the insertion rod 11 has a tendency to move upward under the elastic force of the spring 2 12.

[0052] The guide plate 1 9 and the guide plate 2 10 can ensure the stable up and down movement of the insertion rod 11. Such a structure can make the insertion rod 11 stably inserted into the lock hole 1a or stably escaped from the lock hole 1a.

[0053] Of course, under the elastic force of the second spring 12, the insertion rod 11 has a tendency to move upward, that is, the cabinet door 2 can be stably opened in the initial state.

[0054] The insert rod 11 has a protruding stop edge 11a, and the two ends of the spring 12 act on the stop edge 11a and the guide plate 10 respectively. Under the elastic force of the spring 12, the stop edge 11a tends to abut against the guide plate 9.

[0055] The retaining edge 11a has two functions: First, the insertion rod 11 is limited to prevent the insertion rod 11 from being separated from the guide rod 1 9 and the guide rod 2 10; Secondly, the blocking edge 11a is used to block the upper end of the second spring 12 to stably position the second spring 12.

[0056] The upper end of the insertion rod 11 has a disc-shaped contact plate 11 b, and the lower end of the locking rod 4 is spherical and abuts against the contact plate 11 b.

[0057] Since the lower end of the locking rod 4 will be displaced in the lateral direction during the movement, in this solution, since the contact plate 11b is relatively large, even if the locking rod 4 is displaced, the locking rod 4 can always be in stable contact with the contact plate 11b.

[0058] The locking rod 4 , the positioning assembly, the plug assembly and the locking hole 1 a form a locking unit. There are two locking units, which are symmetrically arranged at the upper part and the lower part of the lock 3 .

[0059] The two locking units are respectively located at the upper part and the lower part of the lock 3. Such a structure can effectively improve the stability of the cabinet door 1 when it is in a closed and locked state.

[0060] Since the middle part of the lock rod of the door lock mechanism is supported and positioned by the positioning assembly, the lock rod can not only move stably but also be locked in position after moving, thereby ultimately ensuring that the cabinet door in the communication cabinet is stably in an open or closed state, and its stability is relatively high.

[0061] At the same time, since the plug rod assembly does not move with the tilt of the lock rod, the plug rod in the plug rod assembly will only move up and down smoothly under the pushing action of the lock rod, ultimately ensuring that the plug rod can be stably inserted into the lock hole or removed from the lock hole, further improving its stability.

[0062] In addition, since the positioning assembly and the plug-in rod assembly are both arranged on the inner side of the cabinet door, they occupy relatively little space, and the above-mentioned assemblies are not exposed on the outside of the communication cabinet. Therefore, the structure is relatively compact and has high practical value.

[0063] The positioning tube and the bottom plate are both made of PVC material and are an integrated structure, and the bottom plate is in surface contact with the cabinet door. Since the positioning tube and the bottom plate are both made of PVC material, the friction resistance between the locking rod and the positioning tube is relatively small, and the friction between the bottom plate and the inner side of the cabinet door is also relatively small.

[0064] The above structure can ensure that the locking rod can move smoothly relative to the positioning tube, and ensure that the bottom plate can swing appropriately relative to the cabinet door around its hinge.

[0065] Embodiment 2, as Figure 4-Figure 7 As shown, this embodiment provides a communication cabinet, which includes the communication cabinet door lock mechanism of Example 1. The cabinet body 1 includes four vertical support profiles 13 and four horizontal positioning profiles 14, the four vertical support profiles 13 are in a rectangular array and are distributed along a first direction Y, the four horizontal positioning profiles 14 are distributed along a second direction X, and the lateral connection profiles 15 are distributed along a third direction Z.

[0066] Two of the four horizontal positioning profiles 14 are located at the bottom of the cabinet 1, and the remaining two horizontal positioning profiles 14 are located at the top of the cabinet 1. The two vertical support profiles 13 and the two horizontal positioning profiles 14 distributed up and down form a first rectangular bracket through multi-directional positioning, and the remaining two vertical support profiles 13 and the remaining two horizontal positioning profiles 14 form a second rectangular bracket through multi-directional positioning. The corresponding two horizontal positioning profiles 14 on the first rectangular bracket and the second rectangular bracket are symmetrically distributed up and down.

[0067] Specifically, the vertical supporting profile 13 of this embodiment includes a first U-shaped main body 130, and a first X-positioning portion 131 connected to both sides of the first U-shaped main body 130 and extending into the interior of the first U-shaped main body 130, and each first X-positioning portion 131 is provided with a first Z-positioning portion 132 vertically connected to the first X-positioning portion 131 and extending into the interior of the first U-shaped main body 130. The horizontal positioning profile 14 includes a second U-shaped body 140, and first snap-in portions 141 are respectively provided at both ends of the second U-shaped body 140, which are snapped into the first U-shaped body 130 from both ends of the corresponding first U-shaped body 130, and the outer ends of the first snap-in portions 141 abut against the inner bottom surface of the first U-shaped body 130 and the two outer side walls of the first snap-in portions 141 abut against the first Z positioning portion 132, and second X positioning portions 142 are respectively provided on both sides of the second U-shaped body 140, and the ends abut against the side surfaces of the corresponding first X positioning portions 131, and the second X positioning portions 142 are of a right-angle structure. The second U-shaped body 140 is also provided with a second Y-direction positioning portion 143 distributed along the third direction Z and abutting against the end of the corresponding first X positioning portion 131, and the above is assembled to form a first rectangular bracket and a second rectangular bracket through multi-directional positioning.

[0068] After the above-mentioned first rectangular bracket and second rectangular bracket are assembled, the first rectangular bracket and the second rectangular bracket are connected by the lateral connecting profile 15 to form a cabinet main frame, and the lateral connecting profile 15 connects the first rectangular bracket and the second rectangular bracket by fasteners and the like.

[0069] The above structure can omit the fasteners required when the first rectangular bracket and the second rectangular bracket are formed to reduce costs, while also ensuring that the first rectangular bracket and the second rectangular bracket can be accurately assembled to ensure the stability of the structure.

[0070] Preferably, a groove tongue positioning hole 133 is provided on the vertical supporting profile 13, and positioning tongue pieces 150 inserted into the groove tongue positioning hole 133 are respectively provided at both ends of the lateral connecting profile 15. The positioning tongue pieces 150 are inserted into the groove tongue positioning hole 133 in advance, so as to limit the positions of the corresponding two vertical supporting profiles 13 distributed along the third direction Z, thereby further improving the assembly efficiency.

[0071] The bottom, top and three side surfaces of the cabinet main frame are respectively provided with covering panels 16, and the remaining side surface is provided with a cabinet door 2. The covering panels 16 are fixed to the side connecting profiles 15 by screws or the like, and the covering panels 16 can also be reinforced and fixed to each other by screws.

[0072] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A communication cabinet door lock mechanism, the communication cabinet comprising a cabinet body (1) and a cabinet door (2), the cabinet body (1) having a hollow interior and a side opening, the cabinet door (2) being hinged at the side opening of the cabinet body (1), characterized in that: The door lock mechanism comprises a lock (3), a lock rod (4), a positioning assembly, an insertion rod assembly and a lock hole (1a) located on a cabinet body (1); the lock (3) is fixedly connected to the cabinet door (2); the upper end of the lock rod (4) is movably connected to the lock (3); the positioning assembly is hinged on the cabinet door (2); the middle part of the lock rod (4) is connected to the positioning assembly; the insertion rod assembly is connected to the cabinet door (2) and the insertion rod assembly is adjacent to the lock hole (1a); when the lock (3) is in a locked state, the lock rod (4) moves downward and can make the insertion rod assembly insert into the lock hole (1a); when the lock (3) is in an unlocked state, the lock rod (4) can be separated from the insertion rod assembly, and the insertion rod assembly has a tendency to move upward and separate from the lock hole (1a).

2. The communication cabinet door lock mechanism according to claim 1, characterized in that: The positioning assembly comprises a base plate (5), a positioning cylinder (6), a ball (7) and a spring (8); the positioning cylinder (6) is sleeved on the middle part of the locking rod (4) and the positioning cylinder (6) is fixedly connected to the base plate (5); the base plate (5) is hinged to the inner side of the cabinet door (2); the inner side of the positioning cylinder (6) has a recessed positioning hole (6a); the spring (8) and the ball (7) are located in the positioning hole (6a); the outer side of the locking rod (4) has an annular recessed positioning groove (4a); under the elastic force of the spring (8), the ball (7) has a tendency to be embedded in the positioning groove (4a).

3. The communication cabinet door lock mechanism according to claim 2, characterized in that: The positioning hole (6a), the ball (7) and the spring (8) form a positioning unit. The number of the positioning units is a plurality, and the plurality of positioning units are evenly distributed around the inner side of the positioning cylinder (6).

4. The communication cabinet door lock mechanism according to claim 3, characterized in that: The number of the positioning grooves (4a) is a plurality, and the plurality of positioning grooves (4a) are evenly distributed along the length direction of the locking rod (4).

5. The communication cabinet door lock mechanism according to claim 4, characterized in that: The positioning groove (4a) matches the outer side of the ball (7) and the two are in surface contact.

6. The communication cabinet door lock mechanism according to claim 5, characterized in that: The insertion rod assembly comprises a guide plate 1 (9), a guide plate 2 (10), an insertion rod (11) and a spring 2 (12); the guide plate 1 (9) and the guide plate 2 (10) are both fixedly connected to the cabinet door (2), and the guide plate 1 (9) is located above the guide plate 2 (10); the middle part of the insertion rod (11) is successively passed through the guide plate 1 (9) and the guide plate 2 (10); the spring 2 (12) is sleeved on the insertion rod (11), and under the elastic force of the spring 2 (12), the insertion rod (11) has a tendency to move upward.

7. The communication cabinet door lock mechanism according to claim 6, characterized in that: The insert rod (11) has a protruding stop edge (11a), and the two ends of the spring (12) act on the stop edge (11a) and the guide plate (10) respectively. Under the elastic force of the spring (12), the stop edge (11a) has a tendency to abut against the guide plate (9).

8. The communication cabinet door lock mechanism according to claim 7, characterized in that: The upper end of the insertion rod (11) has a disc-shaped contact plate (11b), and the lower end of the locking rod (4) is spherical and the lower end of the locking rod (4) abuts against the contact plate (11b).

9. The communication cabinet door lock mechanism according to claim 8, characterized in that: The locking rod (4), the positioning assembly, the insertion rod assembly and the locking hole form a locking unit, and the number of the locking units is two, and the two locking units are symmetrically arranged at the upper part and the lower part of the lock (3), respectively.

10. A communication cabinet, characterized in that: The communication cabinet door lock mechanism comprises the communication cabinet door lock mechanism as claimed in any one of claims 1 to 9, and the cabinet body (1) comprises four vertical supporting profiles (13) and four transverse positioning profiles (14), two of the four transverse positioning profiles (14) are located at the bottom of the cabinet body (1), and the remaining two transverse positioning profiles (14) are located at the top of the cabinet body (1), two of the vertical supporting profiles (13) and two of the transverse positioning profiles (14) distributed up and down form a first rectangular bracket through multi-directional positioning, the remaining two vertical supporting profiles (13) and the remaining two transverse positioning profiles (14) form a second rectangular bracket through multi-directional positioning, the first rectangular bracket and the second rectangular bracket are connected by a lateral connecting profile (15) to form a cabinet main frame, and covering panels (16) are respectively provided at the bottom, top and three lateral surfaces of the cabinet main frame, and the cabinet door (2) is provided on the remaining lateral surface.

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