Wrench special for fire-fighting ESFR nozzle
By designing a special wrench for fire ESFR sprinkler heads, and utilizing the combination of a rubber layer contacting the interface and a counterweight pushing component, the dual problems of difficult disassembly and sprinkler head protection are solved, achieving a multi-functional disassembly and protection effect.
Patent Information
- Application Number
- CN202423230953.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-26
AI Technical Summary
When disassembling ESFR fire sprinkler heads, corrosion of the interface makes disassembly difficult, and ordinary wrenches are prone to deformation. Traditional wrenches have only one function and cannot solve the problems of disassembling and protecting the sprinkler head at the same time.
A special wrench for fire ESFR sprinkler heads has been designed, which includes a wrench head, a wrench mouth, a handle body and functional components. The functional components include a pusher, a counterweight, a rubber layer and a threaded sleeve. The rubber layer contacts the interface and is struck to avoid deformation. The counterweight works with the pusher to achieve multi-functional disassembly.
It achieves both effective disassembly and protection of the ESFR fire sprinkler head during disassembly, preventing deformation caused by impact. The structure is simple and the performance is good.
Smart Images
Figure CN223573046U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to spanner technical field, more specifically is related to special spanner of fire ESFR sprinkler. BACKGROUND
[0002] When the fire ESFR sprinkler is disassembled and replaced, sometimes the interface rust problem is encountered, the effect of direct screwing disassembly is poor, and knocking the interface is often needed, if the ordinary type hammer is applied, since the material of the hammer is relatively hard, improper control can easily lead to deformation, so that it is more difficult to disassemble, the traditional spanner can only disassemble the corresponding spanner opening parts, does not have the function of one thing two uses, based on this, the inventor studies and proposes the case. CONTENT OF UTILITY MODEL
[0003] The utility model discloses a special spanner for fire ESFR sprinkler.
[0004] The utility model discloses a special spanner for fire ESFR sprinkler.
[0005] A special spanner for fire ESFR sprinkler, including spanner head, spanner opening, handle, cooperation mouth, functional assembly, the one end of handle is connected and is arranged spanner head, is arranged for the spanner opening of the card fire ESFR sprinkler on spanner head, cooperation mouth, is arranged functional assembly on handle, and functional assembly includes pusher, counterweight, rubber layer, is provided with the cavity containing counterweight on handle, and the rubber layer is pasted on the outside end of counterweight, and pusher jolt counterweight removes the cavity.
[0006] A preferable technical scheme: the side end of counterweight is provided with a limiting block.
[0007] A preferable technical scheme: the cavity is provided with a threaded sleeve, and the pusher is threadedly connected with the threaded sleeve.
[0008] A preferable technical scheme: the side of counterweight close to pusher is provided with a groove, and the pusher extends into the groove.
[0009] A preferable technical scheme: a spring is arranged between the groove and the threaded sleeve, and the spring is nested on the outer surface of the pusher.
[0010] A preferable technical scheme: a circular hole is arranged through the handle, and the circular hole can be used for hanging and storing the spanner.
[0011] A preferable technical scheme: the thickness of the part of the handle where the counterweight is arranged is adapted.
[0012] The utility model has the advantages of the following:
[0013] The wrench realizes one object with multiple uses, especially is suitable for disassembling the fire sprinkler, the matching block on the functional assembly cooperates with the rubber layer during disassembling, and the fire sprinkler can be effectively prevented from being damaged during knocking. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is the whole structure schematic view of the utility model;
[0015] Fig. 2 It is the structure schematic view of the wrench mouth;
[0016] Fig. 3 It is the structure schematic view of the functional assembly.
[0017] Sign significance: 1, wrench head;2, wrench mouth;3, handle;31, cavity;4, matching mouth;5, functional assembly;51, pusher;52, counterweight block;521, limit block;522, recess;53, rubber layer;54, threaded sleeve;55, spring;6, round hole. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. The components of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.
[0019] Therefore, the following detailed description of the embodiment of the utility model provided in the drawing is not intended to limit the scope of the claimed utility model, but only represents the selected embodiment of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled person in the art without creative labor belong to the scope of protection of the utility model.
[0020] As Figs. 1 to 3 The utility model discloses a special wrench for fire ESFR sprinkler, including wrench head 1, wrench mouth 2, handle 3, matching mouth 4, functional assembly 5, handle 3 one end is connected and sets up wrench head 1, sets up the wrench mouth 2 of the fire ESFR sprinkler for clamping on wrench head 1, matching mouth 4, sets up functional assembly 5 on handle 3, and functional assembly 5 includes pusher 51, counterweight block 52, rubber layer 53, and handle 3 is provided with the cavity 31 containing counterweight block 52 on it, and the rubber layer 53 is pasted on the outside end of counterweight block 52, and pusher 51 drives counterweight block 52 to move out of cavity 31.
[0021] Further, the side end of the counterweight block 52 is provided with a limit block 521.
[0022] Further, a threaded sleeve 54 is arranged in the cavity 31, and the pushing member 51 is threadedly connected with the threaded sleeve 54.
[0023] Further, a recess 522 is arranged on the side of the counterweight 52 close to the pushing member 51, and the pushing member 51 extends into the recess 522.
[0024] Further, a spring 55 is arranged between the recess 522 and the threaded sleeve 54, and the spring 55 is nested on the outer surface of the pushing member 51. One end of the spring 55 is connected with the recess 522 on the counterweight 52, and the other end is connected with the surface of the threaded sleeve 54. The threaded sleeve 54 is fixed in the cavity 31. When the counterweight 52 is displaced, the spring 55 is deformed by being pulled, and when the pushing member 51 does not push the counterweight 52, the counterweight 52 is retracted into the cavity 31 under the action of the spring 55.
[0025] Further, a circular hole 6 is arranged through the handle 3.
[0026] Further, the thickness of the part of the handle 3 where the counterweight 52 is arranged is adapted.
[0027] The wrench opening 2 of the wrench in the utility model is used for clamping the interface of the fire-fighting ESFR spray head. The outer edge of the handle 3 is held, the wrench opening 2 of the wrench is clamped on the spray head interface, and the spray head interface is tightened or loosened. When the fire-fighting ESFR spray head is disassembled and replaced, if the interface is corroded, the effect of direct screwing is not good, at this time, the interface is knocked, which is beneficial to the screwing effect. If a common iron hammer is used, because the material of the iron hammer is relatively hard, improper control can easily cause deformation, and the disassembly is more difficult.
[0028] The function assembly 5 is arranged on the wrench, when the counterweight 52 on the wrench is needed to be used, the pushing member 51 is screwed, the pushing member 51 is threadedly matched with the threaded sleeve 54, and the pushing member 51 slowly pushes the counterweight 52 out of the cavity 31. At this time, the wrench 1 is held, the rubber layer 53 on the counterweight 52 is contacted and knocked with the interface, the rubber layer 53 can effectively avoid deformation of the contact position, the spring 55 and the pushing member 51 push the counterweight 52, and the counterweight 52 is fixed in the relative position after being moved out of the cavity 31.
Claims
1. A special wrench for fire ESFR sprinkler heads, characterized in that, The device includes a wrench head, a wrench mouth, a handle body, a mating port, and functional components. One end of the handle body is connected to the wrench head, and the wrench head is provided with a wrench mouth and a mating port for engaging an ESFR fire sprinkler head. The handle body is provided with functional components, which include a pusher, a counterweight, and a rubber layer. The handle body is provided with a cavity for accommodating the counterweight, and the outer end of the counterweight is attached with a rubber layer. The pusher pushes the counterweight to move out of the cavity.
2. The special wrench for fire ESFR sprinkler heads according to claim 1, characterized in that, The counterweight is provided with a limit block on its side end.
3. The special wrench for fire ESFR sprinkler heads according to claim 1, characterized in that, A threaded sleeve is provided inside the cavity, and the pusher is threadedly connected to the threaded sleeve.
4. The special wrench for fire ESFR sprinkler heads according to claim 3, characterized in that, The counterweight has a groove on the side facing the pusher, and the pusher extends into the groove.
5. The special wrench for fire ESFR sprinkler heads according to claim 4, characterized in that, A spring is provided between the groove and the threaded sleeve, and the spring is nested on the outer surface of the pusher.
6. The special wrench for fire ESFR sprinkler heads according to claim 1, characterized in that, A circular hole is provided through the handle body.
7. The special wrench for fire ESFR sprinkler heads according to claim 1, characterized in that, The thickness of a portion of the body where the counterweight is mounted is adapted.