A tower door locking mechanism for a tower

Abstract

This utility model discloses a tower door locking mechanism, including a tower body and a tower door rotatably mounted on the tower body. The tower door has an arrangement hole for a locking bolt to pass through. A locking screw hole is provided on the tower body. When the locking bolt is screwed into the corresponding locking screw hole, the tower door locks to the tower body. A limit screw hole is provided on the side of the tower door corresponding to the arrangement hole. An annular groove is provided at the rear of the locking bolt, and a limit bolt is detachably installed at the limit screw hole. When the locking bolt is inserted into the arrangement hole, the annular groove aligns with the limit screw hole. When the limit bolt is in place, it enters the annular groove to prevent the locking bolt from exiting the arrangement hole. This utility model, through a simple structural design, limits the locking bolt to the tower door. When workers unlock the bolt, it will not detach from the tower door, thus preventing bolt loss and ensuring that workers can properly lock the tower door, effectively protecting the tower door and internal components of the tower.

Description

Technical Field

[0001] This utility model relates to the field of communication tower technology, and in particular to a tower door locking mechanism. Background Technology

[0002] In existing technology, communication towers have internal wiring, with control modules and power modules housed at the base of the tower. A tower door is located at the base, allowing construction or maintenance personnel to access and maintain these internal components. Currently, the door is typically locked by a bolt threaded through it and screwed into a hole in the tower body; unscrewing the bolt unlocks it. However, in practice, after unlocking and opening the door, the bolt is often not properly stored and is lost, leading to the door remaining open and making it vulnerable to damage to the door and internal tower components. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a tower gate locking mechanism that provides structural limits for bolts and tower gate, thereby preventing bolt loss and ensuring normal locking of the tower gate.

[0004] This utility model adopts the following technical solution: a tower door locking mechanism, including a tower body and a tower door rotatably mounted on the tower body. The tower door is provided with an arrangement hole for a locking bolt to pass through. The tower body is provided with a locking screw hole. When the locking bolt is screwed into the corresponding locking screw hole, the tower door is locked to the tower body. A limit screw hole is provided on the side of the tower door corresponding to the arrangement hole. An annular groove is provided at the rear of the locking bolt. A limit bolt is detachably installed at the limit screw hole. When the locking bolt is inserted into the arrangement hole, the annular groove corresponds to the position of the limit screw hole. When the limit bolt is installed in place, it enters the annular groove to prevent the locking bolt from exiting the arrangement hole.

[0005] As an improvement, the locking bolt includes a first engagement section at the front and a second engagement section in the middle. The diameter of the second engagement section is larger than that of the first engagement section. The arrangement hole has an internal thread that engages with the second engagement section. The first engagement section engages with the locking bolt hole.

[0006] As an improvement, the engagement length of the internal thread and the second engagement section is set such that when the first engagement section engages with the locking screw hole, the second engagement section has already disengaged from the internal thread from the inside; or when the first engagement section engages with the locking screw hole, the second engagement section disengages from the internal thread from the inside.

[0007] As an improvement, the locking bolt includes a head at the rear end, an annular groove located between the second engagement section and the head, and the head covering the arrangement hole when the locking bolt is installed in place.

[0008] As an improvement, an enlarged groove is provided at the outer end of the hole, and the head is accommodated in the enlarged groove when the locking bolt is installed in place.

[0009] The beneficial effects of this utility model are as follows: through a simple structural design, the locking bolt is limited to the tower door, and the bolt will not come off the tower door when the staff unlocks the bolt, thereby avoiding the loss of the bolt and ensuring that the staff can lock the tower door normally, effectively protecting the tower door and the internal components of the tower. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the transverse cross-sectional structure of the present invention when locked.

[0011] Figure 2 This is a schematic diagram of the transverse cross-sectional structure of the present invention when it is unlocked.

[0012] In the diagram: 1. Tower body; 11. Locking screw hole; 2. Tower door; 21. Arrangement hole; 211. Enlarged slot; 22. Limiting screw hole; 23. Internal thread; 3. Locking bolt; 31. Annular groove; 32. First engagement section; 33. Second engagement section; 34. Head; 4. Limiting bolt. Detailed Implementation

[0013] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0014] like Figure 1 , 2 The image shows a specific embodiment of the tower gate locking mechanism of this utility model.

[0015] This embodiment includes a tower body 1 and a tower door 2 rotatably mounted on the tower body 1. The tower door 2 is provided with an arrangement hole 21 for a locking bolt 3 to pass through. The tower body 1 is provided with a locking screw hole 11. When the locking bolt 3 is screwed into the locking screw hole 11, the tower door 2 is locked to the tower body 1. The side of the tower door 2 corresponding to the arrangement hole 21 is provided with a limit screw hole 22. The rear of the locking bolt 3 is provided with an annular groove 31. A limit bolt 4 is detachably installed at the limit screw hole 22. When the locking bolt 3 is inserted into the arrangement hole 21, the annular groove 31 corresponds to the position of the limit screw hole 22. When the limit bolt 4 is installed in place, it enters the annular groove 31 to prevent the locking bolt 3 from exiting the arrangement hole 21.

[0016] In use, the size of the arrangement hole 21 is slightly larger than that of the locking bolt 3, making it easier to insert the locking bolt 3. After inserting the locking bolt 3 into the arrangement hole 21, the limiting bolt 4 is screwed into the limiting screw hole 22, so that the inner end of the limiting bolt 4 extends into the annular groove 31. The annular groove 31 is relatively long in the axial direction of the locking bolt 3, so that the limiting bolt 4 in the annular groove 31 does not affect the forward or backward movement of the locking bolt 3 to lock or unlock it when screwed into the locking screw hole 11. When the locking bolt 3 moves further outward from the locking screw hole 11 after disengaging from the locking screw hole 11, the inner sidewall of the annular groove 31 is blocked when it reaches the limiting bolt 4, thus preventing the locking bolt 3 from exiting the arrangement hole 21 and achieving a good limiting effect for the locking bolt 3. In terms of the structural implementation of this utility model, the manufacturing cost is well controlled. The original locking structure and operation method remain unchanged, and it does not affect the direct use by personnel familiar with the tower structure. The improved limiting structure does not require adjustment when opening and closing the tower door 2 after initial installation, and does not increase the amount of operation.

[0017] As an improved specific implementation, the locking bolt 3 includes a first engagement section 32 at the front and a second engagement section 33 in the middle. The diameter of the second engagement section 33 is larger than the diameter of the first engagement section 32. The arrangement hole 21 has an internal thread 23 that engages with the second engagement section 33. The first engagement section 32 engages with the locking screw hole 11.

[0018] like Figure 1 , 2 As shown, in order to further improve the structural stability and operational convenience of the locking bolt 3 in the arrangement hole 21, a structure of a first engagement section 32 and a second engagement section 33 is designed. The first engagement section 32 is smaller than the inner diameter of the arrangement hole 21, which facilitates quick insertion during the initial insertion. The second engagement section 33 corresponds to the internal thread 23 provided in the arrangement hole 21. When the second engagement section 33 reaches the internal thread 23, it needs to be engaged to continue inserting inward. Therefore, when it is necessary to move the locking bolt 3 outward, it is necessary to rotate to move the locking bolt 3 outward. This ensures the stable limiting state of the locking bolt 3 and the arrangement hole 21. The operator cannot directly move the locking bolt 3 outward, avoiding the locking bolt 3 from directly detaching from the arrangement hole 21. Even if the limiting bolt 4 is accidentally removed or not installed in place, the limiting function of the locking bolt 3 can still be guaranteed, achieving a double protection effect.

[0019] As an improved specific implementation, the engagement length of the internal thread 23 and the second engagement section 33 is set such that when the first engagement section 32 engages with the locking screw hole 11, the second engagement section 33 has already disengaged from the internal thread 23 from the inside; or when the first engagement section 32 engages with the locking screw hole 11, the second engagement section 33 disengages from the internal thread 23 from the inside.

[0020] like Figure 1 , 2 As shown, in practical implementation, the longer the overall threaded section, the greater the resistance during engagement, especially under long-term use without lubrication. Therefore, the mating length of the internal thread 23 and the second engagement section 33 is set such that when the first engagement section 32 engages with the locking screw hole 11, or during the engagement process, the second engagement section 33 disengages from the internal thread 23 from the inside (e.g., ...). Figure 1 As shown), the friction between the internal thread 23 and the second engagement section 33 will disappear. The locking and unlocking process only requires the operator to apply force to overcome the friction between the first engagement section 32 and the locking screw hole 11, thus making the operation more effortless. After unlocking, the second engagement section 33 re-enters the internal thread 23 for engagement (as shown). Figure 2 As shown), the locking bolt 3 and the arrangement hole 21 are then kept in a limited position, thus achieving the limiting effect on the locking bolt 3.

[0021] As an improved specific implementation, the locking bolt 3 includes a head 34 at the rear end, an annular groove 31 located between the second engagement section 33 and the head 34, and when the locking bolt 3 is installed in place, the head 34 covers the arrangement hole 21.

[0022] like Figure 1 , 2 As shown, the head 34 is relatively large, and it forms an annular groove 31 between itself and the second engagement section 33, which is also relatively large. The outer end of the head 34 has a special groove structure for inserting and rotating tools, allowing operators to screw the locking bolt 3 in or out. The head 34 is larger than the arrangement hole 21, thus covering the arrangement hole 21 and providing internal protection.

[0023] As an improved specific implementation, an enlarged groove 211 is provided at the outer end of the arrangement hole 21, and when the locking bolt 3 is installed in place, the head 34 is accommodated in the enlarged groove 211.

[0024] like Figure 1 , 2 As shown, the further enlarged groove 211 is used to accommodate the head 34. After the locking bolt 3 is installed and locked, the locking bolt 3 is located in the enlarged groove 211, which can effectively protect the locking bolt 3, reduce the contact between the head 34 and the outside world, and extend the overall service life of the locking bolt 3.

[0025] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A tower gate locking mechanism, comprising a tower body (1) and a tower gate (2) rotatably disposed on the tower body (1), wherein the tower gate (2) is provided with an arrangement hole (21) for a locking bolt (3) to pass through, and the tower body (1) is provided with a locking screw hole (11), wherein when the locking bolt (3) is screwed into the locking screw hole (11), the tower gate (2) is locked to the tower body (1), characterized in that: The tower gate (2) has a limiting screw hole (22) on the side corresponding to the arrangement hole (21). The locking bolt (3) has an annular groove (31) at the rear. A limiting bolt (4) is detachably installed at the limiting screw hole (22). When the locking bolt (3) is installed into the arrangement hole (21), the annular groove (31) corresponds to the position of the limiting screw hole (22). When the limiting bolt (4) is installed in place, it enters the annular groove (31) to restrict the locking bolt (3) from exiting the arrangement hole (21).

2. The tower gate locking mechanism according to claim 1, characterized in that: The locking bolt (3) includes a first engagement section (32) at the front and a second engagement section (33) in the middle. The diameter of the second engagement section (33) is larger than the diameter of the first engagement section (32). The arrangement hole (21) has an internal thread (23) that engages with the second engagement section (33). The first engagement section (32) engages with the locking screw hole (11).

3. A tower door locking mechanism according to claim 2, characterised in that: The engagement length of the internal thread (23) and the second engagement section (33) is set as follows: when the first engagement section (32) engages with the locking screw hole (11), the second engagement section (33) has disengaged from the internal thread (23) from the inside; or when the first engagement section (32) engages with the locking screw hole (11), the second engagement section (33) disengages from the internal thread (23) from the inside.

4. A tower door locking mechanism according to claim 2 or 3, characterised in that: The locking bolt (3) includes a head (34) at the rear end, and the annular groove (31) is located between the second engagement section (33) and the head (34). When the locking bolt (3) is installed in place, the head (34) covers the arrangement hole (21).

5. A tower door locking mechanism according to claim 4, wherein: An enlarged groove (211) is provided at the outer end of the arrangement hole (21). When the locking bolt (3) is installed in place, the head (34) is accommodated in the enlarged groove (211).

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