A mounting mechanism for a cable branch box door lock
By using a combination of gaskets and fastening nuts in the cable branch box door lock, the problems of cumbersome and inaccurate installation in the prior art are solved, achieving simplified installation, reliable electrical connection and accurate grounding resistance measurement, while reducing processing difficulty and noise impact.
Patent Information
- Application Number
- CN202522162609.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-13
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-13
AI Technical Summary
The installation process of existing cable branch box door locks is cumbersome and inaccurate, resulting in unqualified grounding resistance measurements. Furthermore, the existing structure is difficult to process, costly, and noisy, which affects installation efficiency.
The device employs a combination structure of a washer and a fastening nut. The washer has a piercing part, and the fastening nut drives the washer to move towards the cabinet door, piercing the paint layer to achieve electrical connection. Combined with wear-resistant ribs and circumferentially distributed piercing parts, it ensures stable contact and precise damage to the paint layer.
It simplifies the installation process, ensures the reliability and accuracy of electrical connections, reduces processing difficulty and noise impact, and improves installation efficiency and the accuracy of grounding resistance measurement.
Smart Images
Figure CN224679292U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power technology, specifically to an installation mechanism for a cable branch box door lock. Background Technology
[0002] Existing cable distribution boxes are all equipped with door locks, but there are special requirements for the grounding resistance of the door locks, namely, the grounding resistance of the door locks must not exceed the national standard value. To prevent corrosion, the doors of existing cable distribution boxes are usually painted to form a protective layer. If direct installation is used, the grounding resistance of the door locks will far exceed the national standard value due to the presence of this paint layer.
[0003] The existing method involves using an angle grinder to remove the paint from the lock mounting area before installing the lock, thus securing it in place. At this point, the lock and cabinet door are electrically connected. This method is cumbersome, requiring a professional to operate the angle grinder; large-area paint removal can lead to rust and reduce the cabinet door's lifespan; uneven paint removal can result in unreliable electrical contact between the lock nut and the cabinet door surface, leading to inaccurate grounding resistance measurements and ultimately, substandard results.
[0004] In addition, those skilled in the art have also used a method of setting 4-6 diamond-shaped spikes on the side of the locking nut facing the cabinet door. By rotating the locking nut, the diamond-shaped spikes slide on the surface of the cabinet door, thereby damaging the surface and forming an electrical connection between the locking nut and the cabinet door. The problem with this structure is that the locking nut is not a standard part, is difficult to manufacture, requires special customization, and is relatively expensive. Secondly, during the rotation of the locking nut, the diamond-shaped spikes sliding on the surface of the cabinet door produce a harsh sound, which also affects the installation efficiency of the installers. Utility Model Content
[0005] Therefore, the technical problem to be solved by this utility model is how to achieve the installation of the door lock. An installation mechanism for a cable branch box door lock includes: A lock body, which is connected to the cabinet door; A latch, which is connected to the lock body; A gasket, wherein the gasket has a piercing portion on the side facing the cabinet door, and the gasket is fitted onto the lock body; A fastening nut is fitted onto the lock body, and the fastening nut drives the washer to move toward the cabinet door. The washer is located between the cabinet door and the fastening nut.
[0006] The other side of the gasket is provided with a recessed portion, which is correspondingly provided with the puncture portion. The recessed portion and the puncture portion are formed after the gasket is stamped.
[0007] The number of puncture sites is at least two.
[0008] The puncture points are arranged in a circumferential array.
[0009] The gasket is arched, and the puncture portion is located in the area of the gasket near the outer sidewall.
[0010] The washer has several wear-resistant ribs on the side facing the fastening nut.
[0011] It also includes two first fasteners, both of which are fitted onto the lock body, and the lock tongue is located between the two first fasteners.
[0012] It also includes a second fastener, the lock body comprising a lock shell and a lock cylinder, the second fastener being sleeved on the lock cylinder and moving toward the lock shell.
[0013] It also includes a handle, which is connected to the lock body. The lock body has a lock hole, which is exposed on the surface of the handle.
[0014] It also includes a protective cover, which is connected to the handle and closes the lock hole.
[0015] The technical solution of this utility model has the following advantages: 1. The installation mechanism for a cable branch box door lock provided by this utility model firstly involves setting a piercing part on a gasket. Compared with the prior art, the gasket is a thin structure, which is simpler to process. Secondly, through the cooperation of the fastening nut and the gasket, during the installation and fixing process, the gasket will not rotate under the drive of the fastening nut. The gasket will only move towards the cabinet door, so that the piercing part pierces the paint layer of the cabinet door, realizing the electrical connection between the fastening nut and the cabinet door, and also realizing the electrical connection between the door lock and the cabinet door. With this installation method, there will be no harsh noise between the gasket and the cabinet door, and the installation is convenient.
[0016] 2. The installation mechanism for the cable branch box door lock provided by this utility model is formed by stamping and molding a gasket, which makes the processing more convenient.
[0017] 3. The installation mechanism for a cable branch box door lock provided by this utility model has multiple piercing parts combined to achieve a better piercing effect, so that the paint layer on the surface of the cabinet door is precisely damaged.
[0018] 4. The installation mechanism for a cable branch box door lock provided by this utility model has an arched gasket and a puncture part located near the outer wall, forming a deformation effect. The puncture part not only moves towards the cabinet door, but can also perform small-range friction, increasing the contact area between the puncture part and the cabinet door.
[0019] 5. The installation mechanism for a cable branch box door lock provided by this utility model has wear-resistant ribs to prevent the gasket from rotating.
[0020] 6. The present invention provides an installation mechanism for a cable branch box door lock, wherein two first fasteners cooperate to form a locking effect of the lock tongue.
[0021] 7. The present invention provides an installation mechanism for a cable branch box door lock, wherein the second fastener forms the lock core for fixing.
[0022] 8. The present invention provides an installation mechanism for a cable branch box door lock, wherein the protective cover provides protection for the lock hole. Attached Figure Description
[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 A schematic diagram of the installation mechanism for a cable branch box door lock provided by this utility model; Figure 2 A schematic diagram of the door lock provided by this utility model; Figure 3 A front view of the gasket provided by this utility model; Figure 4 Rear view of the gasket provided by this utility model; Figure 5 A cross-sectional view of the gasket provided by this utility model.
[0025] Explanation of reference numerals in the attached figures: 11. Lock body; 12. Cabinet door; 13. Lock tongue; 14. Washer; 15. Fastening nut; 16. First fastener; 17. Second fastener; 18. Handle; 19. Protective cover; 111. Lock shell; 112. Lock cylinder; 113. Keyhole; 141. Puncture part; 142. Recessed part; 143. Wear-resistant rib. Detailed Implementation
[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0030] Example 1 This embodiment provides an installation mechanism for a cable branch box door lock, as shown in the attached diagram. Figures 1-5 As shown, it includes: Lock body 11 is connected to cabinet door 12. Here, part of lock body 11 is located outside cabinet door 12, and part of lock body 11 is located inside cabinet door 12. This is the prior art.
[0031] The latch 13 is connected to the lock body 11. Here, the latch 13 and the portion of the lock body 11 located inside the cabinet door 12 are connected, creating a linkage effect. That is, when the lock body 11 rotates, the latch 13 moves simultaneously. The latch 13 engages with the locking structure inside the cable branch box to form a locking effect. In other words, when the latch 13 engages with the locking structure, the cabinet door 12 is locked and cannot be opened. Only by releasing the lock can the cabinet door 12 be opened. The latch 13 and the locking structure are existing technology and will not be described in detail in this embodiment.
[0032] The gasket 14 is a thin structure, with a thickness much smaller than that of the fastening nut 15. The gasket 14 has a puncture part 141 on the side facing the cabinet door 12. The gasket 14 is fitted onto the lock body 11, and a hole is provided in the middle of the gasket 14.
[0033] A fastening nut 15 is fitted onto the lock body 11, and the fastening nut 15 also has a hole in the middle, forming a fitted effect on the lock body 11. A washer 14 is located between the cabinet door 12 and the fastening nut 15. The fastening nut 15 drives the washer 14 to move towards the cabinet door 12, forming a fixing effect of the fastening nut 15, so that the lock body 11 and the cabinet door 12 are firmly fixed. Here, the surface of the lock body 11 has a threaded structure that mates with the fastening nut 15. Firstly, by providing a piercing part 141 on the gasket 14, compared to existing technologies, the gasket 14 is a thin structure, making it easier to process. Secondly, through the cooperation of the fastening nut 15 and the gasket 14, during the installation and fixing process, the gasket 14 will not rotate under the drive of the fastening nut 15; the gasket 14 will only move towards the cabinet door 12, causing the piercing part 141 to pierce the paint layer of the cabinet door 12, thus achieving the electrical connection between the fastening nut 15 and the cabinet door 12, and also achieving the electrical connection between the door lock and the cabinet door 12. With this installation method, there will be no harsh noise between the gasket 14 and the cabinet door 12, and the installation is convenient.
[0034] Specifically, as shown in the attached document Figures 3-5 As shown, the other side of the gasket 14 has a recess 142, which is correspondingly arranged with the puncture portion 141. Specifically, "correspondingly arranged" means that they are arranged on the left and right sides respectively. In this embodiment, the gasket 14 is formed by stamping to create the recess 142 and the puncture portion 141. That is, the recess 142 and the puncture portion 141 are formed by stamping during the stamping process using a stamping die. Stamping forms the gasket 14, making the processing more convenient. Alternatively, other processing methods can be used, such as bending, but the strength of the puncture portion 141 is poor after bending.
[0035] Specifically, the number of puncture portions 141 is at least two. Multiple puncture portions 141 combined together achieve a better puncture effect, precisely damaging the paint layer on the surface of the cabinet door 12. The number of puncture portions 141 can be adjusted according to actual needs; it can be two, three, or more. In this embodiment, six puncture portions 141 are used as an example.
[0036] Specifically, the puncture portions 141 are arranged in a circular array, that is, the six puncture portions 141 are arranged in a circular array, and correspondingly, the number of recesses 142 is also six.
[0037] Specifically, as shown in the attached document Figures 3-5As shown, the gasket 14 is arched. The shape of the gasket 14 can be circular or square, with a protrusion in the middle. In this embodiment, the protrusion is specifically towards the side of the fastening nut 15, forming an arched structure. The piercing part 141 is located in the area of the gasket 14 near the outer wall. When the fastening nut 15 abuts against the gasket 14, the operator rotates the fastening nut 15, causing the gasket 14 to move towards the cabinet door 12. At this time, the piercing part 141 is located near the outer wall, creating a deformation effect. The piercing part 141 not only moves towards the cabinet door 12 but also undergoes a small range of friction, increasing the contact area between the piercing part 141 and the cabinet door 12.
[0038] Specifically, gasket 14 is made of metal.
[0039] Specifically, as shown in the attached document Figures 3-5 As shown, the washer 14 has several wear-resistant ribs 143 on the side facing the fastening nut 15. The wear-resistant ribs 143 are provided to prevent the washer 14 from rotating. The number and size of the wear-resistant ribs 143 can be adjusted according to actual needs.
[0040] Specifically, the fastening nut 15 is a standard nut component, that is, a regular hexagonal prism structure. Compared with the prior art, the fastening nut 15 in this embodiment does not require customization.
[0041] Specifically, as shown in the attached document Figure 1 As shown, it also includes two first fasteners 16, both of which are sleeved on the lock body 11, with the bolt 13 located between the two first fasteners 16. The two first fasteners 16 cooperate to fix the bolt 13. Here, the first fastener 16 is a nut. Specifically, the two first fasteners 16 cooperate with the lock cylinder 112.
[0042] Specifically, as shown in the attached document Figure 1 As shown, it also includes a second fastener 17. The lock body 11 includes a lock shell 111 and a lock cylinder 112. In this embodiment, the fastening nut 15 is used to connect and fix the lock shell 111 to the cabinet door 12. Here, the lock shell 111 is located inside the cabinet door 12, and the fastening nut 15 and the washer 14 are both sleeved on the lock shell 111. The lock cylinder 112 passes through the lock shell 111 and partially extends outside the cabinet door 12. The second fastener 17 is sleeved on the lock cylinder 112 and moves towards the lock shell 111. The second fastener 17 forms a fixation for the lock cylinder 112. Here, the second fastener 17 is also a nut. The latch 13 cooperates with the lock cylinder 112 to form a linkage effect.
[0043] Specifically, as shown in the attached document Figures 1-2As shown, the cabinet also includes a handle 18, located outside the cabinet door 12. The handle 18 is connected to the lock body 11, which has a keyhole 113. Specifically, the keyhole 113 is located within the lock cylinder 112, which extends through the cabinet door 12 to the outside. The portion of the lock cylinder 112 that extends through the cabinet door 12 engages with the handle 18, while the keyhole 113 is exposed on the surface of the handle 18. This exposure means that an external person can use a key to engage the keyhole 113, causing the lock cylinder 112 to rotate, thereby rotating the bolt 13. The handle 18 allows the cabinet door 12 to be opened, making it more convenient. However, it should be noted that the bolt 13 must be released from its locking mechanism before the cabinet door 12 can be opened.
[0044] Specifically, it also includes a protective cover 19, which is connected to the handle 18 and seals the lock hole 113. The protective cover 19 provides protection for the lock hole 113. The protective cover 19 and the handle 18 can be fixed by a snap-fit, a bolt, or other means.
[0045] Specifically, in this embodiment, the lock body 11 and the handle 18 are components of the door lock. The assembly of these components forms the door lock. This is existing technology, so it will not be described in detail in this embodiment. When the fastening nut 15 is connected and fixed to the lock body 11, an electrical connection is formed, and the door lock is finally connected to the cabinet door 12 for grounding.
[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. An installation mechanism for a cable branch box door lock, characterized in that, include: Lock body (11), which is connected to cabinet door (12); A latch (13) is connected to the lock body (11); Gasket (14), the gasket (14) has a piercing part (141) on the side facing the cabinet door (12), the gasket (14) is sleeved on the lock body (11); A fastening nut (15) is fitted onto the lock body (11). The fastening nut (15) drives the washer (14) to move toward the cabinet door (12). The washer (14) is located between the cabinet door (12) and the fastening nut (15).
2. The installation mechanism for the cable branch box door lock according to claim 1, characterized in that, The other side of the gasket (14) is provided with a recess (142), which is correspondingly provided with the puncture part (141). The gasket (14) is formed by stamping to form the recess (142) and the puncture part (141).
3. The installation mechanism for the cable branch box door lock according to claim 2, characterized in that, The number of the puncture portions (141) is at least two.
4. The installation mechanism for the cable branch box door lock according to claim 3, characterized in that, The puncture portions (141) are arranged in a circular array.
5. The installation mechanism for the cable branch box door lock according to claim 2, 3, or 4, characterized in that, The pad (14) is arched, and the puncture part (141) is located in the area of the pad (14) near the outer wall.
6. The installation mechanism for the cable branch box door lock according to claim 1, characterized in that, The washer (14) has several wear-resistant ribs (143) on the side facing the fastening nut (15).
7. The installation mechanism for the cable branch box door lock according to claim 1, characterized in that, It also includes two first fasteners (16), both of which are fitted onto the lock body (11), and the latch (13) is located between the two first fasteners (16).
8. The installation mechanism for the cable branch box door lock according to claim 1, characterized in that, It also includes a second fastener (17), the lock body (11) includes a lock shell (111) and a lock cylinder (112), the second fastener (17) is sleeved on the lock cylinder (112) and moves toward the lock shell (111).
9. The installation mechanism for the cable branch box door lock according to claim 1, characterized in that, It also includes a handle (18), which is connected to the lock body (11). The lock body (11) has a lock hole (113) which is exposed on the surface of the handle (18).
10. The installation mechanism for the cable branch box door lock according to claim 9, characterized in that, It also includes a protective cover (19), which is connected to the handle (18) and closes the lock hole (113).