Retainer type pressure plate lead-in device
By adopting a guardrail type pressure disk introduction device in the pressure disk introduction device, combined with the design of the communication section, bolts and reinforcement ribs, the problem of difficult to control the cable length in the prior art is solved, and better sealing and equipment stability are achieved, and explosion loss is avoided.
Patent Information
- Application Number
- CN202421482543.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-26
AI Technical Summary
When the existing pressure disc-type introduction device connects the rubber-shelled cable, it is difficult to effectively control the spacing between the flare port and the communicating flange surface and the cable extension length, resulting in the possibility of burst loss or incompleteness.
The guardrail type pressure plate introduction device is adopted, which includes the guardrail type pressure plate main body, the communication section, the first bolt, the second bolt, the reinforcement rib and other components. Through the design and matching use of these components, the effective introduction and fixation of the cable is achieved to ensure sealing and stability.
It effectively avoids explosion loss, ensures sealing and equipment stability. At the same time, through the design of reinforcement ribs, the accuracy and strength of cast steel parts are improved, which is conducive to the cleaning and maintenance of water vapor and dust.
Smart Images
Figure CN222763508U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of explosion-proof electrical appliances, in particular to a retaining ring type pressure plate introduction device. Background Art
[0002] When mining explosion-proof electrical appliances are connected to rubber-sheathed cables, the industry usually chooses a B-type pressure plate introduction device for the introduction cable with a minimum outer diameter greater than 20mm. The current conventional practice is: first connect the pressure plate and the connecting joint with bolts but do not tighten them, and pass the cable through the bell mouth of the pressure plate and extend it into the equipment wiring cavity within 5 to 15mm. Then tighten the bolts to push the bell mouth without shaking as the tightening standard, and finally tighten the pressure plate bolts. However, this method has some shortcomings. The distance between the bell mouth and the flange surface of the connecting joint is not easy to control, and the extension length of the cable is not easy to control. When the cable extension length is too short, it is a misfire, and when it is too long, it is incomplete. In response to the above problems, the inventor proposes a retaining ring type pressure plate introduction device to solve the above problems. Utility Model Content
[0003] In order to solve the problem that the extension length of the cable is difficult to control in the current pressure plate type introduction device, the purpose of the utility model is to provide a retaining ring type pressure plate introduction device.
[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme: a retaining ring type pressure plate introduction device, comprising a retaining ring type pressure plate main body, a connecting joint is arranged on one side of the retaining ring type pressure plate main body, a first bolt is inserted through the side wall of the retaining ring type pressure plate main body, and one end of the first bolt passes through the connecting joint, a first reinforcing rib is arranged on the end face of the retaining ring type pressure plate main body, a pressure plate is arranged on the side wall of the retaining ring type pressure plate main body, a second bolt is inserted through the side wall of the pressure plate, and a second reinforcing rib is arranged on one side of the pressure plate.
[0005] Preferably, the first reinforcing rib is circular, the second reinforcing rib is square, one end of the second bolt passes through the retaining ring type pressure plate body, the side wall of the second bolt is provided with a gasket, the second bolt is used to fix the pressure plate to the retaining ring type pressure plate body, the first reinforcing rib is used to protect the first bolt at the retaining ring type pressure plate body and the connecting joint, and the second reinforcing rib is used to protect the second bolt on the pressure plate. At the same time, the first reinforcing rib and the second reinforcing rib also improve the flow filling of the melt during casting, and provide favorable conditions for obtaining steel castings with higher precision. Through the matching use of the retaining ring type pressure plate body and the connecting joint, and under the action of the first reinforcing rib and the second reinforcing rib, protection can be provided for the fastening bolts of the introduction device of the explosion-proof equipment to prevent equipment instability and explosion failure caused by failure of fasteners.
[0006] Preferably, the single-sided clearance of the guard ring type pressure plate body extending into the connecting joint part is 1.5mm, the head of the first bolt is lower than the guard ring plane of the guard ring type pressure plate body, the guard ring type pressure plate body corresponds to and cooperates with the connecting joint, and by adopting the above technical scheme, the guard ring type pressure plate body includes a guard ring and a pressure plate, and the guard ring and the pressure plate are integrally formed with high strength. At the same time, the semi-enclosed structure is conducive to water vapor and dust cleaning and maintenance. The head of the first bolt is lower than the guard ring plane of the guard ring type pressure plate body, thereby preventing the bolts from loosening and breaking due to accidental collisions and reducing unnecessary consumption.
[0007] Compared with the prior art, the beneficial effects of the utility model are: it is convenient to leave a gap between the bell mouth and the flange surface of the connecting joint, and the sealing is good, which can effectively avoid the occurrence of explosion failure. Through the matching use of the retaining ring type pressure plate main body and the connecting joint, and under the action of the first reinforcing rib and the second reinforcing rib, the fastening bolts of the explosion-proof equipment introduction device can be protected to prevent equipment instability and explosion failure caused by failure of the fasteners. The retaining ring type pressure plate main body is an integrated molded structure with high strength, which is also conducive to water vapor and dust cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0010] Figure 2 It is the left view of the utility model.
[0011] Figure 3 This is a schematic diagram of the cooperation between the second reinforcing rib and the pressing plate of the utility model.
[0012] In the figure: 1. retaining ring type pressure plate body; 2. connecting joint; 3. first bolt; 4. second bolt; 5. pressure plate; 6. gasket; 7. first reinforcing rib; 8. second reinforcing rib. DETAILED DESCRIPTION
[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0014] Example: Figure 1-3 As shown, the utility model provides a retaining ring type pressure plate introduction device, including a retaining ring type pressure plate main body 1, a connecting section 2 is arranged on one side of the retaining ring type pressure plate main body 1, a first bolt 3 is inserted through the side wall of the retaining ring type pressure plate main body 1, and one end of the first bolt 3 passes through the connecting section 2, a first reinforcing rib 7 is arranged on the end face of the retaining ring type pressure plate main body 1, a pressure plate 5 is arranged on the side wall of the retaining ring type pressure plate main body 1, a second bolt 4 is inserted through the side wall of the pressure plate 5, and a second reinforcing rib 8 is arranged on one side of the pressure plate 5.
[0015] The first reinforcing rib 7 is circular, the second reinforcing rib 8 is square, one end of the second bolt 4 passes through the retaining ring type pressure plate body 1, and a gasket 6 is sleeved on the side wall of the second bolt 4.
[0016] By adopting the above technical scheme, the second bolt 4 is used to fix the pressure plate 5 to the retaining ring type pressure plate body 1, the first reinforcing rib 7 is used to protect the first bolt 3 at the retaining ring type pressure plate body 1 and the connecting joint 2, and the second reinforcing rib 8 is used to protect the second bolt 4 on the pressure plate 5. At the same time, the first reinforcing rib 7 and the second reinforcing rib 8 also improve the flow filling of the melt during casting, which provides favorable conditions for obtaining steel castings with higher precision. Through the matching use of the retaining ring type pressure plate body 1 and the connecting joint 2, and under the action of the first reinforcing rib 7 and the second reinforcing rib 8, the fastening bolts of the explosion-proof equipment introduction device can be protected to prevent equipment instability and explosion failure caused by failure of fasteners.
[0017] The single-side clearance of the retaining ring type pressure plate body 1 extending into the connecting section 2 is 1.5 mm, the head of the first bolt 3 is lower than the retaining ring plane of the retaining ring type pressure plate body 1, and the retaining ring type pressure plate body 1 corresponds to and cooperates with the connecting section 2.
[0018] By adopting the above technical solution, the guard ring type pressure plate body 1 includes a guard ring and a pressure plate, and the guard ring and the pressure plate are integrally formed with high strength. At the same time, the semi-enclosed structure is conducive to water vapor and dust cleaning and maintenance. The head of the first bolt 3 is lower than the guard ring plane of the guard ring type pressure plate body 1, thereby preventing the bolts from loosening and breaking due to accidental collisions and reducing unnecessary consumption.
[0019] Working principle: When the utility model is in use, the retaining ring type pressure plate body 1 can be connected to the connecting joint 2 by the first bolt 3, the pressure plate 5 can be fixed to the retaining ring type pressure plate body 1 by the second bolt 4, and the first reinforcing rib 7 can protect the first bolt 3 at the retaining ring type pressure plate body 1 and the connecting joint 2, and the second reinforcing rib 8 can protect the second bolt 4 on the pressure plate 5. At the same time, the first reinforcing rib 7 and the second reinforcing rib 8 also improve the flow filling of the melt during casting, which provides favorable conditions for obtaining steel castings with higher precision.
[0020] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A retainer type pressure plate introduction device, comprising a retainer type pressure plate body (1), characterized in that: A connecting joint (2) is provided on one side of the retaining ring type pressure plate body (1), a first bolt (3) is inserted through the side wall of the retaining ring type pressure plate body (1), and one end of the first bolt (3) passes through the connecting joint (2), a first reinforcing rib (7) is provided on the end face of the retaining ring type pressure plate body (1), a pressure plate (5) is provided on the side wall of the retaining ring type pressure plate body (1), a second bolt (4) is inserted through the side wall of the pressure plate (5), and a second reinforcing rib (8) is provided on one side of the pressure plate (5).
2. The retainer type pressure plate introduction device according to claim 1, characterized in that: The first reinforcing rib (7) is circular, and the second reinforcing rib (8) is square.
3. The retainer type pressure plate introduction device according to claim 1, characterized in that: The single-side clearance of the retaining ring type pressure plate body (1) extending into the connecting joint (2) is 1.5 mm.
4. The retainer type pressure plate introduction device according to claim 1, characterized in that: The head of the first bolt (3) is lower than the retaining ring plane of the retaining ring type pressure plate body (1).
5. The retainer type pressure plate introduction device according to claim 1, characterized in that: The retaining ring type pressure plate body (1) corresponds to and cooperates with the connecting joint (2).
6. The retainer type pressure plate introduction device according to claim 1, characterized in that: One end of the second bolt (4) passes through the retainer type pressure plate body (1).
7. The retainer type pressure plate introduction device according to claim 1, characterized in that: A gasket (6) is sleeved on the side wall of the second bolt (4).