Auxiliary structure for pedal switch

Abstract

The invention discloses an auxiliary structure for a pedal switch, which comprises a protective cover, a limiting seat and a trigger assembly, and is characterized in that the protective cover is limited at a preset position, the protective cover is provided with a placement cavity for mounting a pedal switch, and the limiting seat is located in the placement cavity to limit the pedal switch in the placement cavity; the triggering assembly comprises a shifting piece and a triggering piece, the shifting piece is arranged at the transverse front end of the limiting seat through a positioning shaft, the shifting piece can be driven by the triggering piece to rotate around the positioning shaft, and the shifting piece is provided with a shifting end used for triggering the foot switch; the triggering piece is provided with a front triggering end located on the transverse front side of the triggering piece and a rear triggering end located on the transverse rear side of the triggering piece, and the triggering piece can be driven to slide in the transverse direction through the rear triggering end, so that the triggering piece drives the shifting end to trigger the foot switch through sliding of the front triggering end on the driving face; the pedal switch can be protected, and the risk that the pedal switch is touched by mistake is reduced.

Description

Technical Field

[0001] The present invention relates to the field of protection for foot switches, and particularly to an auxiliary structure for a stepping switch. Background Art

[0002] The foot switches in the prior art are triggered by stepping on them. When foot switches are used in medical devices, extremely strict requirements are imposed on the operating accuracy of the devices. For medical devices integrating multiple treatment methods, multiple foot switches are equipped. These foot switches are arranged at preset positions according to the operating habits of doctors, so that doctors can quickly and accurately operate different foot switches to treat patients in corresponding ways. However, the triggering method of the foot switches makes them extremely easy to be accidentally triggered by stepping on them. Especially for treatment plans that cannot be independently completed by a single person, the risk of accidental triggering of medical devices is further increased, which is likely to cause the medical devices to deviate from the preset execution purpose, interfere with the operation of doctors, and is extremely dangerous.

[0003] Therefore, to solve the above problems, an auxiliary structure for a stepping switch is needed, which can protect the foot switch and reduce the risk of accidental triggering of the foot switch. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide an auxiliary structure for a stepping switch, which can protect the foot switch and reduce the risk of accidental triggering of the foot switch.

[0005] The auxiliary structure for a stepping switch of the present invention includes a protective cover, a limiting seat, and a triggering component. The protective cover is limited at a preset position. The protective cover has a placement cavity for installing the foot switch. The limiting seat is located in the placement cavity to limit the foot switch in the placement cavity.

[0006] The triggering component includes a toggling member and a triggering member. The toggling member is arranged at the front end in the transverse direction of the limiting seat through a positioning shaft. The toggling member can be driven by the triggering member to rotate around the positioning shaft. The positioning shaft is parallel to the rotation shaft of the foot switch. The toggling member has a toggling end for triggering the foot switch. The toggling end is located at one end of the toggling member away from the positioning shaft in the transverse direction. The toggling end is close to the contact of the foot switch, so that after the toggling member rotates around the positioning shaft, the foot switch is triggered by driving the contact through the toggling end.

[0007] The trigger is limited in the height direction by a protective cover. The trigger has a front trigger end located at the front side in the transverse direction of the trigger and a rear trigger end located at the rear side in the transverse direction of the trigger. The toggling member further has a driving surface for engaging with the front trigger end. The driving surface is inclined obliquely upward from the rear to the front. The front trigger end is engaged at a position relatively rearward in the transverse direction of the driving surface. The trigger can be driven to slide transversely through the rear trigger end, so that the trigger drives the toggling end to trigger the foot switch through the sliding of the front trigger end on the driving surface.

[0008] Further, the front end in the transverse direction of the toggling member protrudes downward to form a toggling end. The bottom surface of the toggling end is an arc surface Ⅰ in cross-section.

[0009] Further, the front end in the transverse direction of the trigger protrudes downward to form a front trigger end. The bottom surface of the front trigger end is an arc surface Ⅱ in cross-section.

[0010] Further, the rear end in the transverse direction of the protective cover has a blocking flange protruding inward. The trigger has an anti-disengagement shoulder limited by the blocking flange.

[0011] Further, the trigger located at the front side in the transverse direction of the anti-disengagement shoulder is limited in the height direction between the protective cover and the limit seat.

[0012] Further, the limit seat has a guiding end protruding upward. The trigger located at the front side in the transverse direction of the anti-disengagement shoulder is limited in the height direction between the protective cover and the guiding end. The top surface of the guiding end is an arc surface Ⅲ in cross-section.

[0013] Further, the guiding ends are arranged at intervals in the transverse direction.

[0014] Further, the trigger has a functional surface opposite to the rear end surface in the transverse direction of the limit seat. A reset member is arranged between the functional surface and the rear end surface in the transverse direction of the limit seat. The reset member has elasticity.

[0015] Further, the rear end surface in the transverse direction of the limit seat protrudes rearward in the transverse direction to form a limit post. The functional surface is recessed rearward in the transverse direction to form a guiding groove. The rear end in the transverse direction of the limit post is located at the front end in the transverse direction of the guiding groove. The guiding groove is used to guide the limit post;

[0016] The reset member is a spring sleeved on the limit post and limited between the functional surface and the rear end surface in the transverse direction of the limit seat.

[0017] Further, the rear end surface in the transverse direction of the limit seat further has a limiting groove recessed forward in the transverse direction. The limiting groove is annular and surrounds the front end in the transverse direction of the limit post. The front end in the transverse direction of the spring is limited by the limiting groove.

[0018] The beneficial effects of the present invention are as follows: An auxiliary structure for a pedal switch disclosed by the present invention can protect the pedal switch by limiting the pedal switch within a protective cover. Through an auxiliary triggering component, the triggering method of the pedal switch in the vertical direction can be adjusted to a contraction triggering method on a horizontal plane. Further, in this solution, the triggering member is pushed forward horizontally, and the pedal switch is triggered by the triggering member through a toggling member, reducing the occurrence of accidental triggering of the pedal switch. More precisely, since the toggling member is limited in the height direction between the triggering member and the pedal switch, the lateral rear end of the toggling member is hinged to the top of the front end of the limiting seat in the horizontal direction, the driving surface of the toggling member is an inclined surface that slopes obliquely upward from the rear to the front, and this inclined surface is located on the top surface of the toggling member. The front triggering end of the triggering member advances from the rear to the front on the driving surface, and the triggering member is limited in the height direction by the protective cover, so that the toggling member can only be driven by the triggering member to rotate downward around the positioning axis and approach the pedal switch to trigger it, realizing the conversion of the triggering method of the pedal switch and reducing the occurrence of accidental triggering of the pedal switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments:

[0020] Figure 1 is the front view structural schematic diagram of the present invention;

[0021] Figure 2 is the side view structural schematic diagram of the present invention;

[0022] Figure 3 for the present invention Figure 1 is the structural schematic diagram in the A-A direction;

[0023] Figure 4 for the present invention Figure 3 is the structural schematic diagram in the B-B direction;

[0024] Figure 5 is the structural schematic diagram of one arrangement mode of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 is the side view structural schematic diagram of the present invention; Figure 3 for the present invention Figure 1 is the structural schematic diagram in the A-A direction; Figure 4 for the present invention Figure 3 is the structural schematic diagram in the B-B direction;

[0026] Figure 5Schematic diagram of a structural arrangement of the present invention; as shown in the figure, the horizontal direction is the length direction of the protective cover 1, the front is the direction in which the trigger member 5 approaches the inner cavity of the protective cover 1 along the horizontal direction, the rear is opposite to the front direction in the horizontal direction, and the vertical direction is the width direction of the protective cover 1, which will not be elaborated here. The auxiliary structure for the pedal switch in this embodiment includes a protective cover 1, a limit seat 2, and a trigger assembly. The protective cover 1 is limited at a preset position so that when the trigger member 5 is subjected to an external thrust, the protective cover 1 can be fixed at a predetermined position to prevent the failure of the pedal switch 3 to be triggered. The protective cover 1 has a placement cavity for installing the pedal switch 3. The limit seat 2 is located in the placement cavity to limit the pedal switch 3 in the placement cavity, so that the pedal switch 3 is protected by the protective cover 1, reducing the risk of accidental triggering of the pedal switch 3;

[0027] The pedal switch 3 is limited at the front end of the limit seat 2 in the horizontal direction. The trigger assembly includes a toggle member 4 and a trigger member 5. The toggle member 4 is arranged at the front end of the limit seat 2 in the horizontal direction through a positioning shaft 6. The toggle member 4 can be driven by the trigger member 5 to rotate around the positioning shaft 6. The toggle member 4 is driven to rotate towards the pedal switch 3. The positioning shaft 6 is parallel to the rotation shaft 7 of the pedal switch 3, so that the toggle member 4 can trigger the pedal switch 3 more smoothly and reliably. The toggle member 4 has a toggle end 8 for triggering the pedal switch 3. The toggle end 8 is located at one end of the toggle member 4 away from the positioning shaft 6 in the horizontal direction. The toggle end 8 is close to the contact 9 of the pedal switch 3, so that after the toggle member 4 rotates around the positioning shaft 6, the pedal switch 3 is triggered by the drive of the contact 9 by the toggle end 8;

[0028] The trigger member 5 is limited by the protective cover 1 in the height direction, and the trigger member 5 has a front trigger end 10 located on the lateral front side of the trigger member 5 and a rear trigger end 11 located on the lateral rear side of the trigger member 5. The toggle member 4 also has a driving surface 12 for engaging with the front trigger end 10, and the driving surface 12 is inclined upward from back to front, and the front trigger end 10 is engaged at the lateral rear position of the driving surface 12. The trigger member 5 can be driven to slide laterally through the rear trigger end 11, so that the trigger member 5 drives the toggle end 8 to trigger the foot switch 3 through the sliding of the front trigger end 10 on the driving surface 12. By limiting the foot switch 3 in the protective cover 1, the foot switch 3 can be protected. The vertical stepping trigger mode of the foot switch 3 can be adjusted to a contraction trigger mode on the horizontal plane through the auxiliary trigger component. Furthermore, in this solution, the trigger member 5 is pushed forward in the horizontal direction, and the foot switch 3 is triggered by the trigger member 5 through the toggle member 4, which reduces the occurrence of accidental touching of the foot switch 3. More precisely, the toggle member 4 is limited between the trigger member 5 and the foot switch 3 in the height direction. The lateral rear end of the toggle member 4 is hinged to the top of the lateral front end of the limit seat, the driving surface 12 of the toggle member 4 is an inclined surface inclined upward from back to front, and the inclined surface is located on the top surface of the toggle member 4, the front trigger end 10 of the trigger member 5 is pushed from back to front on the driving surface 12, and the trigger member 5 is limited by the protective cover 1 in the height direction, so that the toggle member 4 can only be driven by the trigger member 5 to move downward around the positioning axis 6 to approach the foot switch 3 and trigger it, thereby realizing the conversion of the trigger mode of the foot switch 3 and reducing the occurrence of accidental touching of the foot switch 3.

[0029] Furthermore, after adopting this scheme, Figure 5 As shown, two sets of auxiliary structures for pedal switches are arranged opposite to each other, and the two foot switches 3 are triggered respectively by sliding the foot left and right, which greatly reduces the possibility of the foot switches 3 being accidentally touched. In other words, the more foot switches 3 there are, the more advantages of this solution can be reflected, especially in the case where medical equipment often uses at least two foot switches 3 corresponding to different treatment devices, which can better reflect the advantages of this solution. Figure 5 This is only one of the arrangements. Two sets of auxiliary structures for pedal switches are fixed at the two ends of a "U"-shaped member respectively and correspondingly in the horizontal direction. The "U"-shaped member is fixed at a preset position. There is an operating space between the two sets of auxiliary structures for pedal switches, so that the lateral sliding of the foot can drive any foot switch 3. Of course, the "U"-shaped member is only provided to facilitate the limiting of the two sets of auxiliary structures for pedal switches. In fact, the corresponding protective cover 1 in the auxiliary structure for pedal switches can also be limited at the preset position, which will not be elaborated here. Of course, the auxiliary structure for pedal switches can also be arranged in the front-to-back direction or in any circumferential directions, so long as it can be positioned to facilitate convenient and accurate triggering. This will not be elaborated here.

[0030] In this solution, the foot switch 3 is selected from any of the existing technologies that can be limited within the protective cover 1, so as to adjust the vertical stepping trigger mode of the foot switch 3 in this solution to a contraction trigger mode on the horizontal plane. This can not only protect the foot switch 3, but also reduce the risk of accidental triggering of the foot switch 3.

[0031] In this embodiment, the protective cover 1 is in the shape of a rectangular cylinder that is circumferentially closed and has open ends at both horizontal ends. This rectangular cylinder is formed by Figure 1The upper and lower halves shown in the figure are fixedly formed to improve the structural strength and facilitate the installation of various components, wherein the trigger member 5, the limit seat 2, the toggle member 4 and the foot switch 3 are sequentially limited in the placement cavity of the protective cover 1 from back to front in the transverse direction, wherein the trigger member 5 has a front trigger end 10 located on the transverse front side of the protective cover 1 and a rear trigger end 11 located on the transverse rear side of the protective cover 1, and the trigger member 5 can be driven to slide in the transverse direction through the rear trigger end 11, so that the trigger member 5 drives the toggle end 8 to trigger the foot switch 3 through the sliding of the front trigger end 10 on the driving surface 12; the transverse front end of the protective cover 1 is closed by the front baffle 13, and the front baffle 13 It also serves the function of fixing the two halves forming the protective cover 1. The foot switch 3 is located at the bottom of the placement cavity, and the foot switch 3 is limited by the transverse front end face of the limit seat 2 and the transverse rear end face of the front baffle 13. The front baffle 13 can be slidingly set on the protective cover 1 in a limited manner. The sliding direction of the front baffle 13 is transversely forward or backward, so that the protective cover 1 can adapt to different foot switches 3 of general size and type differences, and has stronger versatility; further, the front baffle 13 is through the screw 14 that is longitudinally penetrated by itself and the two nuts 15 that are located at the longitudinal ends of the screw 14 and are threadedly connected with the screw 14, as well as the protective cover 1 The slide groove 16 opened in the transverse direction on the longitudinal end surface can be set on the protective cover 1 to be limited in sliding. More specifically, the screw 14 is parallel to the longitudinal direction and penetrates the front baffle 13. The two longitudinal end surfaces of the protective cover 1 are respectively provided with a group of slide grooves 16 for the screw 14 to slide in the transverse direction, which overlap in the transverse projection. The screw 14 is also penetrated in the slide groove 16 to connect the two halves of the protective cover 1. Two nuts 15 adapted to the screw 14 are respectively connected to the longitudinal ends of the screw 14, so that the front baffle 13 and the protective cover 1 are controlled to form a whole by tightening the nut 15 on the screw 14, so that the foot switch 3 is limited in the protective cover 1. , or by loosening the nut 15 on the screw 14, the front baffle 13 is controlled to release the limit from the protective cover 1, which is beneficial to the front baffle 13 limiting the foot switch 3, and after the upper and lower halves of the protective cover 1 are decomposed, it is beneficial to the installation of other components of the present scheme and the placement of the foot switch 3, and also enables the present scheme to adapt to foot switches 3 of different sizes, thereby improving versatility. The screws 14 are three arranged at intervals on the front baffle 13 along the height direction, and the slide grooves 16 and nuts 15 are also three groups corresponding to the number of screws 14, thereby further improving the strength of the front baffle 13 limiting the foot switch 3 and improving the reliability of the overall structure operation and use.

[0032] In this embodiment, the transverse front end of the toggle member 4 protrudes downward to form a toggle end 8, and the bottom surface of the toggle end 8 in the cross section is an arc surface I. More specifically, the transverse rear end of the toggle member 4 is hinged on the limit seat 2, the toggle end 8 is located at the bottom of the transverse front end of the toggle member 4, and the bottom surface of the toggle end 8 matches the top surface of the foot switch 3. The toggle member 4 is connected to the contact 9 of the foot switch 3 in a line contact manner through the toggle end 8, and when the toggle member 4 is driven to rotate, the toggle end 8 and the contact 9 of the foot switch 3 are in continuous line contact. Due to the rotation of the toggle member 4, the toggle member 4 also moves backward, and the top surface of the contact 9 of the foot switch 3 is matched. The surface is inclined downward from back to front, so that the abutting position of the two is continuously changed, and the change is continuous. Therefore, this scheme can improve the smoothness and reliability of triggering the foot switch 3 through the arrangement of the arc surface Ⅰ of the toggle end 8. The limit seat 2 has a gap for avoiding the toggle member 4 and an installation position for installing the toggle member 4, which improves the reliability of the structure triggering. In this scheme, the limit seat 2 is fixed in the placement cavity of the protective cover 1 by a screw 24 located at the bottom of the limit seat 2.

[0033] In this embodiment, the lateral rear end of the protective cover 1 has an inwardly protruding blocking flange 17, and the trigger member 5 has an anti-slip shoulder limited by the blocking flange 17; as shown in the figure, the trigger member 5 is limited by the protective cover 1, and the trigger member 5 located on the lateral front side of the anti-slip shoulder is limited in the height direction between the protective cover 1 and the limiting seat 2; the trigger member 5 located on the lateral rear side of the anti-slip shoulder forms a rear trigger end 11, so that the operator drives the trigger member 5 and the toggle member 4 to cooperate through the rear trigger end 11 exposed on the outside of the protective cover 1, thereby triggering the foot switch 3.

[0034] In this embodiment, the limit seat 2 has a guide end 18 that protrudes upward. The trigger member 5 located on the lateral front side of the anti-slip shoulder is limited in height between the protective cover 1 and the guide end 18. The top surface of the guide end 18 in the cross section is an arc surface III. The guide ends 18 are arranged in a plurality of intervals along the lateral direction, which further improves the reliability and stability of the lateral sliding of the trigger member 5 and improves the convenience of operation. At the same time, the guide end 18 forms a linear support for the bottom of the trigger member 5. Compared with the surface support structure of the sandwich, it can reduce the operating resistance. Under the premise of ensuring the stability and reliability of the structure, the entire mechanism can be operated more quickly, thereby improving the response speed of the foot switch 3. As shown in the figure, the top of the lateral front end of the trigger member 5 extends forward to form a support arm 19, and the support arm 19 is limited in height between the protective cover 1 and the guide end 18.

[0035] The transverse front end of the trigger member 5 protrudes downward to form a front trigger end 10, and the bottom surface of the front trigger end 10 in the cross section is an arc surface II; the front trigger end 10 is located at the transverse front end of the support arm 19, and the front trigger end 10 is formed at the bottom of the transverse front end of the support arm 19. The design of arc surface II is the same as that of arc surface I. Since the driving surface 12 of the toggle member 4 is an inclined surface inclined upward from back to front, the contact between arc surface II and the driving surface 12 is a continuous line contact, and the abutting position of the two is continuously changed. Through the arrangement of arc surface II of the front trigger end 10, the smoothness and reliability of the driving of the toggle member 4 can be improved.

[0036] In this embodiment, the trigger member 5 has a functional surface opposite to the rear lateral surface of the limit seat, and a reset member 20 is arranged between the functional surface and the rear lateral surface of the limit seat, and the reset member 20 is elastic; when the rear trigger end 11 is not manipulated, the elasticity of the reset member 20 can continue to keep it exposed to the protective cover 1, which is beneficial to the reasonable control of the foot switch 3 and improves the convenience and reliability of operation.

[0037] In this embodiment, the rear transverse end face of the limit seat bulges out laterally to form a limit post 21, the functional face is recessed laterally to form a guide groove 22, the rear transverse end of the limit post 21 is located at the front transverse end of the guide groove 22, and the guide groove 22 is used to guide the limit post 21; the reset member 20 is a spring sleeved on the limit post 21 and limited between the functional face and the rear transverse end face of the limit seat; the rear transverse end face of the limit seat also has a limit groove 23 recessed forward in the transverse direction, the limit groove 23 is annular and surrounds the front transverse end of the limit post 21, and the front transverse end of the spring is limited by the limit groove 23. Improve the structural reliability and smooth operation, ensure the reliability of the structure triggering and the ability of the trigger member 5 to reset in a predetermined manner.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An auxiliary structure for a pedal switch, characterized in that: It includes a protective cover, a limiting seat and a trigger assembly, wherein the protective cover is limited at a preset position, the protective cover has a placement cavity for installing a foot switch, and the limiting seat limits the foot switch in the placement cavity; The trigger assembly includes a toggle member and a trigger member, the toggle member is arranged at the transverse front end of the limit seat through the positioning shaft, the toggle member can be driven by the trigger member to rotate around the positioning shaft, the positioning shaft is parallel to the rotation axis of the foot switch, the toggle member has a toggle end for triggering the foot switch, the toggle end is located at one end of the toggle member away from the positioning shaft in the transverse direction, the toggle end is close to the contact of the foot switch, so that after the toggle member rotates around the positioning shaft, the toggle end drives the contact to trigger the foot switch; The trigger member is limited in height by the protective cover, the trigger member has a front trigger end located at the lateral front side of the trigger member and a rear trigger end located at the lateral rear side of the trigger member, the toggle member also has a driving surface for engaging with the front trigger end, the driving surface is inclined upward from the back to the front, the front trigger end is engaged at the lateral rear position of the driving surface, and the trigger member can be driven to slide in the lateral direction through the rear trigger end, so that the trigger member drives the toggle end to trigger the foot switch through the sliding of the front trigger end on the driving surface; The trigger member has a functional surface opposite to the rear transverse surface of the limiting seat, and a reset member is arranged between the functional surface and the rear transverse surface of the limiting seat, and the reset member is elastic.

2. The auxiliary structure for the pedal switch according to claim 1, wherein: The transverse front end of the toggle member protrudes downward to form a toggle end, and the bottom surface of the toggle end in the cross section is an arc surface I.

3. The auxiliary structure for a pedal switch according to claim 2, characterized in that: The transverse front end of the trigger member protrudes downward to form a front trigger end, and the bottom surface of the front trigger end in the cross section is an arc surface II.

4. The auxiliary structure for a pedal switch according to claim 3, wherein: The transverse rear end of the protective cover is provided with a blocking flange protruding inwardly, and the trigger member is provided with an anti-slip shoulder which is limited by the blocking flange.

5. The auxiliary structure for a pedal switch according to claim 4, characterized in that: The triggering member located at the lateral front side of the anti-slip shoulder is limited in height direction between the protective cover and the limiting seat.

6. The auxiliary structure for a pedal switch according to claim 5, characterized in that: The limit seat has a guide end protruding upward, and the trigger member located on the lateral front side of the anti-slip shoulder is limited between the protective cover and the guide end in the height direction. The top surface of the guide end in the cross section is an arc surface III.

7. The auxiliary structure for a pedal switch according to claim 6, characterized in that: The guide ends are a plurality of guide ends arranged at intervals in the transverse direction.

8. The auxiliary structure for a pedal switch according to claim 7, characterized in that: The rear end face of the limit seat is laterally protruding backward to form a limit column, the functional surface is laterally recessed backward to form a guide groove, the rear end of the limit column is located at the front end of the guide groove, and the guide groove is used to guide the limit column; The reset member is a spring which is sleeved on the limiting column and is limited between the functional surface and the lateral rear end surface of the limiting seat.

9. The auxiliary structure for a pedal switch according to claim 8, characterized in that: The rear transverse end face of the limiting seat also has a limiting groove which is recessed forward transversely. The limiting groove is annular and surrounds the transverse front end of the limiting column. The transverse front end of the spring is limited by the limiting groove.

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