Electronic detonator waterproof clip
By employing an upper and lower clamp structure in the electronic detonator clamp, combined with a sealing component, the problem of water ingress and short circuit in the clamp in a humid environment is solved, achieving simplified manufacturing and efficient clamping.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU ANDA ELECRICAL EQUIP CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-31
AI Technical Summary
Existing electronic detonator wire clamps are prone to water ingress during rainy days or in humid environments, leading to short circuits. Existing waterproof structures are complex or require additional installation steps, reducing wire clamping efficiency.
The main body of the wire clamp consists of an upper wire clamp and a lower wire clamp, with an upper ring body and a lower ring body inside. It is equipped with a sealing component. The sealing element is fixed on the upper end face of the ring body and the seal is achieved by covering. This simplifies the structure and improves the connection strength.
It simplifies the manufacturing process of wire clamps, makes them easy to operate, improves clamping efficiency, ensures a sealing effect, and prevents short circuits.
Smart Images
Figure CN224580811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blasting equipment technology, specifically to a waterproof wire clamp for electronic detonators. Background Technology
[0002] Electronic detonators are electric detonators that use electronic control modules to control the detonation process. During detonation, the electronic detonator detonation busbar and detonator lead wires are usually detonated through detonator clamps.
[0003] Because detonator clamps need to connect the detonation busbar and detonator lead wires, and the junction box opening is in rainy weather or high humidity working environments, the junction box is prone to water ingress, which may lead to short circuits, making it impossible to properly detonate the electronic detonator or causing other major safety accidents. Therefore, clamps are usually equipped with waterproof structures to prevent external water from entering the junction box, thus keeping the inside of the junction box dry.
[0004] See the patent with publication number CN110474270A, which discloses a junction box for connecting the lead wire of an electronic detonator to the detonation busbar. When the upper and lower boxes are pressed together, the junction box is waterproofed by the cooperation of the groove and the protrusion. However, the groove and the protrusion make the internal structure of the box complex, and the requirements for mold structure and precision are relatively high.
[0005] See the patent with publication number CN219246959U, which discloses an electronic detonator junction box. It achieves waterproofing by setting an independent sealing element inside the box. However, the action of placing the sealing ring adds an installation step, which is time-consuming and labor-intensive, and greatly reduces the efficiency of clamping the wire. Summary of the Invention
[0006] The purpose of this utility model is to provide an electronic detonator clamp, and in particular, to provide a waterproof electronic detonator clamp.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A waterproof clamp for electronic detonators includes a clamp body with a busbar opening for inserting and exiting a detonating main line and a lead wire opening for inserting a detonator lead wire. The clamp body includes an upper clamp and a lower clamp. The upper clamp contains an upper ring body surrounding the detonator, and the lower clamp contains a lower ring body surrounding the detonator. The upper and lower clamps are closed together to form the clamp body. The upper and lower ring bodies together enclose a fixed area. The clamp also includes a sealing assembly, which includes an upper seal and a lower seal. The upper seal is fixedly disposed on the lower end face of the upper ring body, and the lower seal is fixedly disposed on the upper end face of the lower ring body. When the upper and lower clamps are closed together, the upper and lower seals are in contact with each other.
[0009] Preferably, in the above technical solution, there is an upper partition in the middle of the upper ring body, and a lower partition in the middle of the lower ring body. The upper partition and the lower partition divide the fixed area into a left area and a right area. The upper sealing member is also fixedly arranged on the lower end surface of the upper partition, and the lower sealing member is also fixedly arranged on the upper end surface of the lower partition. Even if there is water in one of the left area and the right area, it will not enter the other area to cause a short circuit, further improving the waterproof performance.
[0010] Further preferably, press ribs are respectively arranged in the left area and the right area of the upper wire clamp; wiring card members are respectively arranged in the left area and the right area of the lower wire clamp, and the press ribs and the wiring card members cooperate with each other.
[0011] Further preferably, the upper sealing member and the lower sealing member are in the shape of a Chinese character 'Ri'.
[0012] Even more preferably, the upper sealing member and the lower sealing member are integrally formed.
[0013] Further preferably, holes are formed on the lower end surface of the upper partition, columns are arranged on the upper sealing member, and the columns of the upper sealing member are inserted into the holes of the upper partition; and / or
[0014] Holes are formed on the upper end surface of the lower partition, columns are arranged on the lower sealing member, and the columns of the lower sealing member are inserted into the holes of the lower partition.
[0015] The connection strength between the upper sealing member, the lower sealing member and the upper partition, the lower partition is improved through the cooperation of the holes and the columns.
[0016] Preferably, in the above technical solution, a plurality of grooves are formed on the upper end surface of the upper ring body, a plurality of protrusions are arranged on the upper sealing member, and the protrusions of the upper sealing member are embedded in the grooves of the upper ring body; and / or,
[0017] A plurality of grooves are formed on the upper end surface of the lower ring body, a plurality of protrusions are arranged on the lower sealing member, and the protrusions of the lower sealing member are embedded in the grooves of the lower ring body.
[0018] The connection strength between the upper sealing member, the lower sealing member and the upper ring body, the lower ring body is improved through the cooperation of the grooves and the protrusions.
[0019] Further preferably, holes are formed in the grooves of the upper ring body, columns are arranged on the protrusions of the upper sealing member, and the columns are inserted into the holes.
[0020] The lower ring body has a hole in its groove, and the lower sealing member has a column on its protrusion, which is inserted into the hole.
[0021] The connection strength between the upper and lower seals and the upper and lower rings is further improved by the cooperation of the holes and pillars.
[0022] More preferably, the upper seal is injection molded on the lower end face of the upper ring body, and the lower seal is injection molded on the upper end face of the lower ring body.
[0023] Preferably, the upper sealing element has an upper notch, and the lower sealing element has a lower notch. When the upper and lower sealing elements are fitted together, the openings of the upper and lower notches are opposite each other and form a channel for the detonator busbar and detonator lead wire to pass through, which facilitates the passage of the detonator busbar and detonator lead wire while ensuring a seal.
[0024] Preferably, the upper clamp has an upper opening on its side wall, and the lower clamp has a lower opening on its side wall. When the upper and lower clamps are closed relative to each other, the upper and lower openings are opposite to each other and form the busbar opening.
[0025] Preferably, in the above technical solution, the rear ends of the upper and lower clamps are rotatably connected, the upper clamp has an upper front opening on its front wall, and the lower clamp has a lower front opening on its front wall. When the upper and lower clamps are closed relative to each other, the openings of the upper and lower front openings are opposite to each other and form the lead wire opening.
[0026] Preferably, the front ends of the upper and lower clamps form a locking structure. The locking structure includes a locking block disposed on one of the upper and lower clamps and a locking hole opened on the other of the upper and lower clamps. When locked, the locking block is engaged in the locking hole, thereby locking the upper and lower clamps.
[0027] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0028] This invention simplifies the internal waterproof structure of the wire clamp and reduces the manufacturing difficulty by forming a sealing element on the ring body. Furthermore, it achieves a seal simply by covering the wire clamp, making the operation simple, reducing the number of steps, and greatly improving the wire clamping efficiency. Attached Figure Description
[0029] Appendix Figure 1 This is a schematic diagram of the structure of this utility model when it is closed;
[0030] Appendix Figure 2 This is a schematic diagram of the structure of this utility model when it is opened;
[0031] Appendix Figure 3 This is a schematic diagram showing the disassembled parts of this utility model;
[0032] Appendix Figure 4 This is a schematic diagram of the locking structure in this utility model (unlocked);
[0033] Appendix Figure 5 This is a schematic diagram of the locking structure (locking) in this utility model;
[0034] Appendix Figure 6 This is a schematic diagram of the fitting of the sealing components in this utility model.
[0035] In the attached diagrams above:
[0036] 1. Cable clamp body; 10. Busbar opening; 11. Lead wire opening; 12. Spindle;
[0037] 1a. Upper wire clamp; 100. Upper side opening; 101. Upper front opening; 102. Locking block; 103. Upper ring body; 1030. Groove; 1031. Hole; 104. Upper partition; 105. Wire pressing rib; 106. Operating part;
[0038] 1b. Lower wire clamp; 110. Lower side opening; 111. Lower front opening; 112. Lock hole; 113. Lower ring body; 1130. Groove; 1131. Hole; 114. Lower partition; 115. Wiring clip;
[0039] 20. Upper seal; 200. Upper notch; 201. Protrusion; 202. Column; 21. Lower seal; 210. Lower notch; 211. Protrusion; 212. Column; 22. Channel. Detailed Implementation
[0040] 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.
[0041] 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.
[0042] like Figure 1-3 The illustrated electronic detonator waterproof clamp includes a clamp body 1. The clamp body 1 has a busbar opening 10 for inserting and exiting the detonating main line, and a lead wire opening 11 for inserting the detonator lead wire. Specifically: four busbar openings 10 are located on the left and right sides of the clamp body 1, symmetrically arranged in pairs on both sides, allowing two detonating main lines to pass through; one lead wire opening 11 is located on the front side of the clamp body 1, allowing one detonator lead wire to pass through (the detonator lead wire splits into two wires inside the clamp).
[0043] The main body of the wire clamp 1 includes an upper wire clamp 1a and a lower wire clamp 1b. Wherein:
[0044] The upper clamp 1a has an upper opening 100 on its side wall; the lower clamp 1b has a lower opening 110 on its side wall. When the upper clamp 1a and the lower clamp 1b are closed relative to each other, the openings of the upper opening 100 and the lower opening 101 are opposite each other and form a busbar opening 10. The diameter of the enclosed busbar opening 10 is slightly smaller than the outer diameter of the detonating busbar, which can clamp the detonating busbar and also play a certain role in waterproofing.
[0045] The rear ends of the upper clamp 1a and the lower clamp 1b are rotatably connected, as shown in the figure, via a pivot 12. The upper clamp 1a has an upper front opening 101 on its front wall, and the lower clamp 1b has a lower front opening 111 on its front wall. When the upper clamp 1a and the lower clamp 1b are closed relative to each other, the openings of the upper front opening 101 and the lower front opening 111 are opposite each other and form a lead wire opening 11. The diameter of the enclosed lead wire opening 11 is also slightly smaller than the outer diameter of the detonator lead wire, which can clamp the detonator lead wire tightly and also achieve a certain waterproof effect.
[0046] The front ends of the upper wire clip 1a and the lower wire clip 1b form a locking structure. When the upper wire clip 1a and the lower wire clip 1b are closed relative to each other, the locking structure locks the wire clips. The locking structure is not the inventive point of this application; any structure capable of locking is acceptable. The following is a specific implementation of the locking structure:
[0047] like Figure 4 ,5 As shown, the locking structure includes a locking block 102 disposed on one of the upper clamp 1a and the lower clamp 1b, and a locking hole 112 disposed on the other of the upper clamp 1a and the lower clamp 1b. In the illustration, the locking block 102 is disposed on the upper clamp 1a, and the locking hole 112 is disposed on the lower clamp 1b, with two sets of locking blocks 102 and locking holes 112 corresponding to each other. When locked, the locking block 102 engages with the locking hole 112, thereby locking the upper clamp 1a and the lower clamp 1b. Furthermore, an operating part 106 is disposed between the two locking blocks 102 in the illustration. Pulling the operating part 106 deforms the front end of the upper clamp 1a, causing the locking block 102 to disengage from the locking hole 112, thus opening the clamp body 1.
[0048] The upper clamp 1a has an upper ring body 103 enclosing all four sides, and the lower clamp 1b has a lower ring body 113 enclosing all four sides. When the upper clamp 1a and the lower clamp 1b are closed relative to each other, the upper ring body 103 and the lower ring body 113 together enclose a fixed area. Two wire pressing ribs 105 are provided in the fixed area of the upper clamp 1a, and two wiring clips 115 are provided in the fixed area of the lower clamp 1b. The wire pressing ribs 105 and the wiring clips 115 cooperate with each other to clamp the two detonating main lines and the detonator lead wires.
[0049] To improve the waterproofing effect of the fixed area, the wire clamp also includes a sealing component. The sealing component includes an upper seal 20 and a lower seal 21. The upper seal 20 is fixedly disposed on the lower end face of the upper ring body 103, and the lower seal 21 is fixedly disposed on the upper end face of the lower ring body 113. When the upper wire clamp 1a and the lower wire clamp 1b are closed relative to each other, the upper seal 20 and the lower seal 21 are in contact with each other.
[0050] like Figure 6 As shown, the upper sealing member 20 has an upper notch 200, and the lower sealing member 21 has a lower notch 210. When the upper sealing member 20 and the lower sealing member 21 are in contact, the openings of the upper notch 200 and the lower notch 210 face each other and form a channel 22 for the detonator busbar and detonator lead wire to pass through. The channel 22 corresponds to the positions of the busbar opening 10 and the lead wire opening 11 on the clamp body 1, respectively. This ensures a tight seal and facilitates the passage of the detonator busbar and detonator lead wire.
[0051] In this embodiment: The sealing component is formed on the lower end surface of the upper ring body 103 and the upper end surface of the lower ring body 113 by means of secondary injection molding. In order to improve the connection strength between the upper seal 20, the lower seal 21 and the upper ring body 103, the lower ring body 113, a plurality of grooves 1030 are provided on the upper end surface of the upper ring body 103, and a plurality of convex portions 201 are provided on the upper seal 20. Similarly, a plurality of grooves 1130 are provided on the upper end surface of the lower ring body 113, and a plurality of convex portions 211 are also provided on the lower seal 21. Moreover, the convex portions of the lower seal are embedded in the grooves of the lower ring body, and the convex portions 201, 211 of the upper seal 20 and the lower seal 21 will be embedded in the grooves 1030, 1130 of the upper ring body 103 and the lower ring body 113 during molding.
[0052] Furthermore: A hole 1031 is provided in the groove 1030 of the upper ring body 103, and a column 202 is provided on the convex portion 201 of the upper seal 20. Similarly, the columns 202, 212 of the upper seal 20 and the lower seal 21 will be inserted into the holes 1030, 1130 of the grooves 1030, 1130 of the upper ring body 103 and the lower ring body 113 during molding, further improving the connection strength between the upper seal 20, the lower seal 21 and the upper ring body 103, the lower ring body 113.
[0053] In another embodiment of the present application: There is an upper partition 104 in the middle of the upper ring body 103, and a lower partition 114 in the middle of the lower ring body 113. The upper partition 104 and the lower partition 114 divide the fixed area into a left area and a right area. Pressing ribs 105 are respectively provided in the left area and the right area of the upper wire clamp 1a; Wiring card members 115 are also respectively provided in the left area and the right area of the lower wire clamp 1b.
[0054] Correspondingly, an upper seal 20 is also fixedly provided on the lower end surface of the upper partition 104, and a lower seal 21 is also fixedly provided on the upper end surface of the lower partition 114, that is, the upper seal 20 and the lower seal 21 are integrally formed and in a "day" shape. Even if there is water in one of the left area and the right area, it will not enter the other area to cause a short circuit, further improving the waterproof performance.
[0055] In this embodiment: A hole 1031 is provided on the lower end surface of the upper partition 104, a column 202 is provided on the upper seal 20, a hole 1131 is also provided on the upper end surface of the lower partition 114, a column 212 is provided on the lower seal 21, and the columns 202, 212 of the upper seal 20 and the lower seal 21 will be inserted into the holes 1030, 1130 of the upper partition 104 and the lower partition 114 during molding.
[0056] The sealing assembly in this embodiment can not only seal the fixed area, but also seal the separated left and right areas. Furthermore, it can seal the area when the upper clamp 1a and the lower clamp 1b are closed together, without the need for additional installation.
[0057] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A waterproof clamp for an electronic detonator, comprising a clamp body, wherein the clamp body has a busbar opening for inserting and exiting a detonating mainline and a lead wire opening for inserting a detonator lead wire; the clamp body includes an upper clamp and a lower clamp; the upper clamp contains an upper ring body surrounding the detonator on all four sides, and the lower clamp contains a lower ring body surrounding the detonator on all four sides; the upper and lower clamps are fitted together to form the clamp body, and the upper and lower ring bodies together enclose a fixed area, characterized in that: The described wire clamp further includes a sealing component, and the sealing component includes an upper seal and a lower seal. The upper seal is fixedly arranged on the lower end face of the upper ring body, and the lower seal is fixedly arranged on the upper end face of the lower ring body. When the upper wire clamp and the lower wire clamp are relatively closed, the upper seal and the lower seal are in contact with each other.
2. The waterproofing clip for electronic detonator according to claim 1, characterized in that: There is an upper partition in the middle of the upper ring body, and a lower partition in the middle of the lower ring body. The upper partition and the lower partition divide the fixed area into a left area and a right area. The upper seal is also fixedly arranged on the lower end face of the upper partition, and the lower seal is also fixedly arranged on the upper end face of the lower partition; Pressing ribs are respectively arranged in the left area and the right area of the upper wire clamp; wiring connectors are respectively arranged in the left area and the right area of the lower wire clamp, and the pressing ribs and the wiring connectors cooperate with each other.
3. The waterproofing clip for electronic detonators according to claim 2, characterized in that: The upper seal and the lower seal are in the shape of a "day".
4. The waterproof clip for electronic detonator according to claim 2, characterized in that: A hole is formed on the lower end face of the upper partition, a column body is arranged on the upper seal, and the column body of the upper seal is inserted into the hole of the upper partition; and / or A hole is formed on the upper end face of the lower partition, a column body is arranged on the lower seal, and the column body of the lower seal is inserted into the hole of the lower partition.
5. The waterproofing clip for electronic detonators according to claim 1, wherein: A plurality of grooves are formed on the upper end face of the upper ring body, a plurality of convex parts are arranged on the upper seal, and the convex parts of the upper seal are embedded in the grooves of the upper ring body; and / or, A plurality of grooves are formed on the upper end face of the lower ring body, a plurality of convex parts are arranged on the lower seal, and the convex parts of the lower seal are embedded in the grooves of the lower ring body.
6. The waterproof clip for electronic detonator according to claim 5, characterized in that: A hole is formed in the groove of the upper ring body, a column body is arranged on the convex part of the upper seal, and the column body is inserted into the hole. A hole is formed in the groove of the lower ring body, a column body is arranged on the convex part of the lower seal, and the column body is inserted into the hole.
7. The waterproof clip for electronic detonator according to any one of claims 4-6, characterized in that: The upper seal is injection-molded on the lower end face of the upper ring body, and the lower seal is injection-molded on the upper end face of the lower ring body.
8. The waterproofing clip for electronic detonators of claim 1, wherein: An upper notch is formed on the upper seal, and a lower notch is formed on the lower seal. When the upper seal and the lower seal are in contact with each other, the openings of the upper notch and the lower notch are opposite to each other and enclose a channel for the detonation busbar and the blasting cap leg wire to pass through.
9. The waterproofing clip for electronic detonator according to claim 1 or 8, characterized in that: An upper side opening is formed on the side wall of the upper wire clamp; a lower side opening is formed on the side wall of the lower wire clamp. When the upper wire clamp and the lower wire clamp are relatively closed, the openings of the upper side opening and the lower side opening are opposite to each other and enclose the busbar opening.
10. The waterproofing clip for electronic detonator according to claim 1 or 8, characterized in that: The rear ends of the upper wire clamp and the lower wire clamp are rotatably connected. An upper front opening is formed on the front wall of the upper wire clamp, and a lower front opening is formed on the front wall of the lower wire clamp. When the upper wire clamp and the lower wire clamp are relatively closed, the openings of the upper front opening and the lower front opening are opposite to each other and enclose the leg wire opening; The front end of the upper and lower wire clamps forms a locking structure, which comprises a locking block arranged on one of the upper and lower wire clamps and a locking hole arranged on the other of the upper and lower wire clamps, and the locking block is clamped into the locking hole when locked.