Mistaken touch prevention calling bell and infusion chair

Abstract

The utility model discloses a mistaken touch prevention calling bell which comprises a shell, a button cap is arranged at the top opening of the shell, a friction block and a rigid supporting plate are sequentially installed in the shell from top to bottom, the bottom of the button cap is fixedly connected with a connecting rod, and the bottom of the connecting rod is fixedly connected with a handle. The connecting rod penetrates through a through hole in the friction block and is in sliding contact with the friction block when sliding up and down, the bottom of the connecting rod is fixedly connected with a movable contact through an expansion plate, and a static contact corresponding to the movable contact is fixedly installed on the upper surface of the rigid supporting plate. According to the utility model, the friction block and the reset spring are arranged in the shell of the calling bell, so that the button cap cannot be easily pressed, the button cap has a process of resetting due to the existence of friction resistance after being pressed, the button cap cannot be frequently triggered, and the pressed button cap can always trigger the calling bell in the resetting process, so that the calling bell is prevented from being damaged. Therefore, the calling bell can continuously give out a ringtone for a certain period of time to remind medical staff.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion chairs, in particular to an anti-mistouch call bell and an infusion chair. Background Art

[0002] At present, outpatient infusions are all done in the infusion hall, which has a special infusion chair for patients to use and a call bell on the infusion chair. The call bell system on the infusion chair is usually connected to the hospital's nursing call system and is designed to notify nurses or other medical staff when patients need help.

[0003] However, improper use of the call bell not only fails to fulfill its original design purpose, but may also lead to other unfavorable factors, such as frequent triggering of the call bell due to unintentional touches, which makes medical staff exhausted and may not be able to respond immediately. In the prior art, in order to overcome the above-mentioned defects, the call bell is generally wrapped or designed in a place that is not easy to touch, which makes it difficult for patients to find the call bell and causes inconvenience in use. For example, the call bell is set at the bottom of the handguard of the infusion chair. Although it avoids the problem of accidental touch to a certain extent, it is also not convenient for patients to use. Some patients cannot even detect the existence of the call bell.

[0004] In addition, this type of solution cannot effectively avoid the problem for some special patients. For example, children frequently touch the call bell out of curiosity or for fun. Especially for hidden call bells, it is easier to arouse the curiosity of children, making medical staff exhausted. Utility Model Content

[0005] The utility model aims to provide a call bell and an infusion chair that can prevent accidental touching, so as to solve the technical problem in the prior art that the call bell is easily touched by accident or pressed multiple times.

[0006] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0007] A call bell for preventing accidental touching comprises a shell, a button cap is arranged at the top opening of the shell, and a friction block and a rigid support plate are sequentially installed inside the shell from top to bottom;

[0008] A connecting rod is fixedly connected to the bottom of the button cap, and the connecting rod passes through the through hole on the friction block and is in sliding contact with the friction block when sliding up and down. A moving contact is fixedly connected to the bottom of the connecting rod through an expansion plate, and a static contact corresponding to the moving contact is fixedly installed on the upper surface of the rigid support plate. When the button cap moves downward under the action of an external force, the moving contact is driven to move downward and contact with the static contact to connect the circuit;

[0009] A return spring is fixedly connected between the connecting rod and the bottom of the inner wall of the shell.

[0010] As a preferred solution of the utility model, when the moving contact moves downward and contacts the stationary contact, the height of the top of the button cap is lower than the height of the top of the housing.

[0011] As a preferred solution of the utility model, the friction block is divided into at least two blocks, and each of the friction blocks is installed on the inner wall of the shell through a push rod, and the push rod is connected to the shell through a threaded engagement.

[0012] As a preferred solution of the utility model, a film for wrapping the button cap inside is arranged at the opening of the housing, and a calling pattern is arranged on the film.

[0013] The utility model provides an infusion chair, comprising a chair body and armrests arranged on both sides of the chair body, one of the armrests being provided with the above-mentioned anti-mistouch call bell

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a friction block and a reset spring in the shell of the call bell, so that the button cap cannot be pressed easily, and after being pressed, it has a process for resetting due to the existence of friction resistance, and cannot be triggered frequently. Moreover, the button cap after being pressed will continue to trigger the call bell during the resetting process, so that the call bell can continue to ring for a certain period of time to remind medical staff. In addition, the trigger button of the call bell is wrapped to avoid attracting the attention of the child, so that the call bell can be set in a normal position and can also avoid accidental touch or intentional triggering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 This is a structural diagram of the infusion chair in the utility model

[0018] Figure 2 This is a schematic diagram of the overall structure of the call bell assembly in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the call bell assembly in the utility model when the button cap is pressed.

[0020] The numbers in the figure represent the following:

[0021] 1-housing; 2-button cap; 3-connecting rod; 4-moving contact; 5-static contact; 6-reset spring; 7-friction block; 8-top rod; 9-chair body; 10-armrest frame. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1 and Figure 2 As shown, the present invention provides an anti-mis-touch call bell, which effectively avoids mis-touch and frequent pressing of the call bell mainly through the setting of the friction block 7.

[0024] A call bell for preventing accidental touching, comprising a housing 1, a button cap 2 is arranged at the top opening of the housing 1, and a friction block 7 and a rigid support plate are sequentially installed inside the housing 1 from top to bottom;

[0025] A connecting rod 3 is fixedly connected to the bottom of the button cap 2, and the connecting rod 3 passes through the through hole on the friction block 7 and slides with the friction block 7 when sliding up and down. A moving contact 4 is fixedly connected to the bottom of the connecting rod 3 through an expansion plate, and a static contact 5 corresponding to the moving contact 4 is fixedly installed on the upper surface of the rigid support plate. When the button cap 2 moves downward under the action of an external force, it drives the moving contact 4 to move downward and contact with the static contact 5 to connect the circuit;

[0026] A return spring 6 is fixedly connected between the connecting rod 3 and the bottom of the inner wall of the housing 1 .

[0027] In actual clinical work, it is common for children to press the call bell multiple times out of curiosity, and for adults to press the call bell multiple times in a short period of time due to impatience. Therefore, it is necessary to develop a call bell that can prevent multiple presses in a short period of time.

[0028] In this embodiment, the friction block 7 is arranged so that the pressing force of pressing the connecting rod 3 to move it downward and causing the moving contact 4 to contact the static contact 5 is relatively large, so that children cannot easily press the call bell and avoid accidental pressing. In addition, due to the arrangement of the friction block 7, the button cap 2 takes a long time to return to its original position through the return spring 6. Within a short period of time, the button cap 2 is still at the bottom of the shell 1, preventing adults from pressing the call bell multiple times in a short period of time.

[0029] In actual use, a finger applies a downward force greater than 200gf to the button cap 2, so that the connecting rod 3 moves downward, so that the moving contact 4 contacts the static contact 5, and a closing action occurs between the moving contact 4 and the static contact 5, so that the circuit is connected, and the call bell is called. At this time, the reset spring 6 is compressed and has a rebound force;

[0030] When the external force pressing the button cap 2 disappears, the connecting rod 3 moves upward through the rebound force of the reset spring 6, so that the button cap 2 returns to its original position, and the connecting rod 3 slides with the friction block 7 during the upward movement. The friction between the friction block 7 and the connecting rod 3 limits the upward movement of the connecting rod 3, thereby reducing the upward movement speed of the connecting rod 3.

[0031] Furthermore, when the moving contact 4 moves downward and contacts the stationary contact 5, the top height of the button cap 2 is lower than the top height of the housing 1. Only when the button cap 2 is lower than the top plane height of the housing 1, the alarm can be triggered. The button cap 2 needs to be pressed intentionally and lowered to the top plane of the housing 1 to trigger the alarm, thus avoiding accidental touches. Moreover, since the pressing force required for the call bell is relatively large, it can prevent children from pressing it or pressing it repeatedly.

[0032] Furthermore, the friction block 7 is divided into at least two pieces, and each of the friction blocks 7 is mounted on the inner wall of the housing 1 through a push rod 8, and the push rod 8 is connected to the housing 1 through a threaded engagement. The tightness of the friction block 7 is adjusted by adjusting the depth of the push rod 8, thereby adjusting the friction force between the friction block 7 and the connecting rod 3, thereby adjusting its reset rate and pressing force, etc., to meet the needs under different conditions.

[0033] In order to prevent the child from touching the call bell out of curiosity, a film is provided at the opening of the housing 1 to wrap the button cap 2 inside, and a calling pattern is provided on the film. Wrapping the triggering part of the call bell will not easily attract the attention of the child, so that the call bell can be set in a normal position without hiding it, which is convenient for daily use of the call bell.

[0034] The utility model provides an infusion chair, comprising a chair body 9 and armrests 10 arranged on both sides of the chair body 9, wherein one of the armrests 10 is provided with the above-mentioned anti-mis-touch call bell.

[0035] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A call bell for preventing accidental touching, characterized in that: It comprises a housing (1), a button cap (2) is provided at the top opening of the housing (1), and a friction block (7) and a rigid support plate are installed in sequence from top to bottom inside the housing (1); The bottom of the button cap (2) is fixedly connected to a connecting rod (3), the connecting rod (3) passes through a through hole on the friction block (7) and is in sliding contact with the friction block (7) when sliding up and down, a moving contact (4) is fixedly connected to the bottom of the connecting rod (3) via an expansion plate, and a static contact (5) corresponding to the moving contact (4) is fixedly installed on the upper surface of the rigid support plate, and when the button cap (2) is moved downward by an external force, the moving contact (4) is driven to move downward to contact with the static contact (5) to connect the circuit; A return spring (6) is fixedly connected between the connecting rod (3) and the bottom of the inner wall of the housing (1).

2. The anti-mistouch call bell according to claim 1, characterized in that: When the moving contact (4) moves downward to contact the stationary contact (5), the top height of the button cap (2) is lower than the top height of the housing (1).

3. The anti-mistouch call bell according to claim 1, characterized in that: The friction block (7) is divided into at least two blocks, and each friction block (7) is mounted on the inner wall of the shell (1) via a push rod (8), and the push rod (8) is connected to the shell (1) via a threaded engagement.

4. The anti-mistouch call bell according to claim 1, characterized in that: An envelope for wrapping the button cap (2) inside is arranged at the opening of the housing (1), and a calling pattern is arranged on the envelope.

5. An infusion chair, characterized in that: The invention comprises a chair body (9) and armrests (10) arranged on both sides of the chair body (9), wherein one of the armrests (10) is provided with an anti-mistouch call bell according to any one of claims 1 to 3.

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