High-strength switch push rod and mounting structure thereof in a switch

Abstract

The present application relates to a kind of high-strength switch push rod and its installation structure in switch, by setting reinforcing pin in push rod, the strength of push rod, especially the slide rod part of push rod is significantly improved, and the slide rod part is the main part of push rod subjected to shear force, therefore, after setting reinforcing pin, the folding resistance of push rod is significantly improved, solve the technical problem that traditional push rod is easy to be broken, improve the service life of push rod and switch, improve the quality of switch.The present application also sets middle clamping hole and outer clamping hole on switch housing, for clamping the slide ring on slide rod and one end of corrugated sealing sleeve, the corrugated sealing sleeve has elasticity, can absorb part of shear force received by slide rod, to further reduce the risk of slide rod being broken, further improve the stability and service life of push rod, at the same time, the corrugated sealing sleeve also effectively improves the dustproof performance of switch, improves the quality of switch.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of switches, and particularly relates to a high-strength switch push rod and a mounting structure thereof in a switch. BACKGROUND

[0002] The push rod of a switch is a commonly used driving component in a key switch. One end of the push rod is inserted into a switch housing to drive a moving contact group inside the switch housing to move and drive a sliding reed inside the switch to slide. The other end of the push rod extends to the outside of the switch housing for an operator to apply force. Usually, a button is connected to the end of the push rod outside the switch housing to improve the comfort of pressing the push rod.

[0003] The push rod of the switch has a self-resetting effect, which is mainly realized by means of a coil spring inserted into the push rod. The end of the push rod inside the switch housing is provided with a spring hole. One end of the coil spring is inserted into the spring hole, and the other end abuts against the inner wall of the switch housing. When the push rod is pushed into the switch housing, the coil spring is compressed. When the external end of the push rod loses the pushing force, the elastic force of the coil spring pushes the push rod outward, so that the push rod is automatically reset. Since the coil spring lacks a guide, it is difficult to realize axial contraction when it is compressed, and is often in a bent and contracted state. This contracted state shortens the service life of the coil spring, and makes the push rod of the switch lose the good and fast reset performance first in the service life of the switch, thereby reducing the use performance of the switch.

[0004] In addition, after the coil spring is bent, one end thereof abuts against the inner wall of the spring hole. After a long time, the friction between the coil spring and the inner wall of the spring hole causes the inner wall of the spring hole to be thinned, reduces the strength of the push rod, and makes the switch prone to breakage. Moreover, powder is generated to pollute the internal environment of the switch, thereby reducing the use safety of the switch.

[0005] In addition, with the lightening of the switch and the insulation requirement of the push rod, the push rod is an insulating plastic part. In order to improve the reset speed and reliability of the push rod, the coil spring is usually selected to have a large elastic force, so that the push rod bears a large pressure when it is pressed. When the user pushes the push rod, the pushing force is often at a certain angle with the axial direction of the push rod. Therefore, the push rod bears a certain shearing force. The greater the elastic force of the coil spring, the greater the pushing force applied by the user on the push rod, and the greater the shearing force. With the passage of time, the push rod affected by the shearing force for a long time is prone to breakage, thereby causing the technical problem that the switch cannot be continuously used. SUMMARY

[0006] The technical problem to be solved by the application is to provide a high-strength switch push rod and a mounting structure thereof in a switch, so as to solve the technical problem that the current switch push rod is not high in strength and is prone to breakage.

[0007] The technical scheme adopted by the present application is as follows: the high-strength switch push rod comprises a sliding rod in sliding fit with a switch shell, a sliding block integrally formed at one end of the sliding rod, and a push handle integrally formed at the other end of the sliding rod, the push handle is used for connecting a switch button, a spring hole extending along the axial direction of the sliding rod is formed in the sliding block, the spring hole extends to the middle part of the sliding rod after penetrating through the sliding block, a positioning hole coaxially arranged with the spring hole is formed in the sliding rod, a metal reinforcing pin is inserted into the positioning hole, the inner diameter of the positioning hole is smaller than the inner diameter of the spring hole, the reinforcing pin is in close fit with the positioning hole, a coil spring is inserted into the spring hole, the coil spring is in clearance fit with the reinforcing pin and the spring hole, the clearance between the coil spring and the reinforcing pin is smaller than the clearance between the coil spring and the spring hole, one end of the coil spring abuts against the stepped surface at the inner end of the spring hole, and the other end of the coil spring extends out of the sliding block and is used for abutting against the inner wall of the switch shell.

[0008] As a preferred scheme, the length of the reinforcing pin is equal to the sum of the axial lengths of the spring hole and the positioning hole, and one end of the reinforcing pin is flush with the outer end of the spring hole.

[0009] As a preferred scheme, the positioning hole extends to the push handle.

[0010] As a preferred scheme, a wear-resistant layer is arranged on the outer wall of the reinforcing pin in the spring hole.

[0011] As a preferred scheme, a knurled or threaded outer circumferential wall is arranged on one end of the reinforcing pin in fit with the positioning hole.

[0012] As a preferred scheme, a sliding ring is sleeved on the sliding rod in sliding fit, a circumferentially extending annular embedding groove is formed at the end of the push handle close to the sliding rod, and a corrugated sealing sleeve is further sleeved on the sliding rod, one end of the corrugated sealing sleeve is sleeved outside the sliding ring, and the other end of the corrugated sealing sleeve is fixedly clamped in the embedding groove and is in sealing connection with the push handle.

[0013] As a preferred scheme, a radially outwardly protruding convex ring is arranged on the outer circumferential wall of the sliding ring, one end of the corrugated sealing sleeve in fit with the sliding ring is simultaneously sleeved outside the convex ring to form a radially outwardly protruding clamping part, and a radially inwardly protruding clamping ring is arranged on the inner wall of one end of the corrugated sealing sleeve in fit with the embedding groove, and the clamping ring is in close fit with the embedding groove.

[0014] As a preferred scheme, a button is inserted into the push handle, a radially outwardly protruding positioning ring is arranged on the push handle, the positioning ring is close to the embedding groove but is located outside the corrugated sealing sleeve, a connecting blind hole in fit with the push handle is arranged inside the button, a positioning groove in fit with the positioning ring is arranged on the inner wall of the connecting blind hole, the positioning ring is clamped in the positioning groove to achieve positioning, a pin hole is formed in the push handle, a through hole opposite to the pin hole is formed in the side wall of the connecting blind hole, the push handle is fixedly connected with the button through a positioning pin inserted into the pin hole through the through hole, and one end of the corrugated sealing sleeve close to the positioning ring is inserted into the connecting blind hole.

[0015] The technical problem to be solved by the present application is to provide a mounting structure of a high-strength switch push rod in a switch to solve the technical problem that the conventional switch push rod is easy to be broken.

[0016] To solve the above technical problem, the technical solution adopted by the present application is: a mounting structure of a high-strength switch push rod in a switch, comprising a switch housing and the high-strength switch push rod, the switch housing is provided with an assembly hole, the assembly hole comprises coaxially arranged and sequentially arranged inner fitting hole, middle clamping hole and outer clamping hole, the inner fitting hole is in sliding fit with the slide rod, the middle clamping hole and the outer clamping hole are used for clamping the slide ring and the corrugated sealing sleeve sleeved outside the slide ring, the inner fitting hole is located at the inner end of the assembly hole, the outer clamping hole is located at the outer end of the assembly hole, the slide rod of the high-strength switch push rod is inserted into the assembly hole, the slide ring and the corrugated sealing sleeve outside the slide ring are clamped in the middle clamping hole and the outer clamping hole, the slide rod outside the slide ring is slidably inserted into the inner fitting hole, the slide block is located in the switch housing and is in sliding connection with the inner wall of the switch housing, a plurality of limiting convex strips for limiting the sliding direction of the slide block are arranged on the inner walls of the opposite sides of the switch housing.

[0017] As a preferred solution, the switch housing comprises a base and a cover opposite to each other, the assembly hole is arranged at the joint of the base and the cover, half of the assembly hole is arranged on the base and the other half is arranged on the cover, when the base and the cover are closed, the complete assembly hole is formed.

[0018] The present application has the following beneficial effects: the present application sets the reinforcing pin in the push rod, so that the strength of the push rod, especially the slide rod part of the push rod, is significantly improved, and the slide rod part is the main part of the push rod subjected to shearing force, therefore, after the reinforcing pin is set, the anti-breaking performance of the push rod is significantly improved, the technical problem that the conventional push rod is easy to be broken is solved, the service life of the push rod and the switch is improved, and the quality of the switch is improved.

[0019] At the same time, the reinforcing pin also limits the bending degree of the coil spring, so that the coil spring abuts against the reinforcing pin even if it is bent, the smaller the bending degree of the coil spring is, the smaller the friction force on the reinforcing pin is, therefore, the reinforcing pin is not easy to be worn, the service life of the coil spring is improved by setting the reinforcing pin, and the powder generated by the friction between the coil spring and the push rod is eliminated, so that the safety and stability of the internal circuit of the switch are improved.

[0020] The present application further sets the middle clamping hole and the outer clamping hole on the switch housing, which are used for clamping the slide ring on the slide rod and one end of the corrugated sealing sleeve, the corrugated sealing sleeve has elasticity and can absorb part of the shearing force received by the slide rod, so as to further reduce the risk of breaking of the slide rod, further improve the stability and service life of the push rod, at the same time, the corrugated sealing sleeve also effectively improves the dustproof performance of the switch, and improves the quality of the switch. BRIEF DESCRIPTION OF DRAWINGS

[0021] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0022] Fig. 1 is a perspective structural schematic diagram of the high-strength switch push rod described in the present application;

[0023] Fig. 2 is a half-section view of the high-strength switch push rod described in the present application;

[0024] Fig. 3 is a half-section structural schematic diagram of the reinforcing pin 8 described in the present application;

[0025] Fig. 4 is an exploded view of the installation structure of the high-strength switch push rod described in the present application in a switch;

[0026] Fig. 5 is a half-section view of the switch housing described in the present application;

[0027] Fig. 6 is a half-section view of the button described in the present application;

[0028] Figs. 1-6 In the figure: 1, switch housing, 1a, base, 1b, cover, 2, sliding rod, 3, sliding block, 4, push handle, 5, button, 6, spring hole, 7, positioning hole, 8, reinforcing pin, 9, ring spring, 10, sliding ring, 11, embedding groove, 12, corrugated sealing sleeve, 13, protruding ring, 14, clamping part, 15, clamping ring, 16, assembly hole, 16a, inner fitting hole, 16b, middle clamping hole, 16c, outer clamping hole, 17, limiting protruding strip, 18, wear-resistant layer, 19, positioning ring, 20, connecting blind hole, 21, positioning groove, 22, pin hole, 23, via hole, 24, positioning pin, 100, push rod. DETAILED DESCRIPTION

[0029] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which: Example 1

[0030] As Figs. 1-3The high-strength switch push rod 100 shown includes a sliding rod 2 in sliding fit with a switch housing 1, a sliding block 3 integrally formed at one end of the sliding rod 2, and a push handle 4 integrally formed at the other end of the sliding rod 2, the push handle 4 being used to connect a switch button 5, the sliding block 3 being provided with a spring hole 6 extending in the axial direction of the sliding rod 2, the spring hole 6 extending through the sliding block 3 to the middle of the sliding rod 2, the sliding rod 2 being provided with a positioning hole 7 coaxially arranged with the spring hole 6, a metal reinforcing pin 8 being inserted into the positioning hole 7, the inner diameter of the positioning hole 7 being smaller than the inner diameter of the spring hole 6, the reinforcing pin 8 being in close fit with the positioning hole 7, a coil spring 9 being inserted into the spring hole 6, the coil spring 9 being in clearance fit with the reinforcing pin 8 and the spring hole 6, the clearance between the coil spring 9 and the reinforcing pin 8 being smaller than the clearance between the coil spring 9 and the spring hole 6, one end of the coil spring 9 abutting against a stepped surface at the inner end of the spring hole 6, and the other end of the coil spring 9 extending out of the sliding block 3 and being used to abut against the inner wall of the switch housing 1.

[0031] In the embodiment, the reinforcing pin 8 is arranged in the push rod 100, so that the strength of the push rod 100, especially the strength of the sliding rod 2 of the push rod 100, is significantly improved. The sliding rod 2 is the main part of the push rod 100 subjected to shearing force. Therefore, after the reinforcing pin 8 is arranged, the folding resistance of the push rod 100 is significantly improved, the technical problem that the conventional push rod is easily broken is solved, the service life of the push rod 100 and the switch is improved, and the quality of the switch is improved.

[0032] In the embodiment, the length of the reinforcing pin 8 is equal to the sum of the axial lengths of the spring hole 6 and the positioning hole 7. One end of the reinforcing pin 8 is flush with the outer end of the spring hole 6 to avoid affecting the sliding range of the sliding block 3, and at the same time, the coil spring 9 is maximally guided and positioned, and the service life of the coil spring 9 is maximally improved.

[0033] In the embodiment, the positioning hole 7 is further extended into the push handle 4, and the push handle 4 is connected with the button 5, so that the overall strength of the push rod 100 is improved, the push handle 4 is prevented from being broken under pressure, the strength of the push rod 100 is further improved, and the use stability of the push rod 100 is improved.

[0034] In the embodiment, a wear-resistant layer 18 is further arranged on the outer wall of the reinforcing pin 8 in the spring hole 6 to improve the wear resistance of the reinforcing pin 8 and eliminate the risk that the friction between the reinforcing pin 8 and the coil spring 9 generates powder to affect the stability of the internal circuit of the switch.

[0035] In the embodiment, the outer circumferential wall of the end of the reinforcing pin 8 in fit with the positioning hole 7 is provided with knurling or threads to improve the connection stability and reliability of the reinforcing pin 8 and the positioning hole 7 and avoid axial movement of the reinforcing pin 8 in the positioning hole 7.

[0036] In the embodiment, a sliding ring 10 is sleeved on the sliding rod 2, a circumferentially extending annular embedding groove 11 is formed on the end of the push handle 4 close to the sliding rod 2, and a corrugated sealing sleeve 12 is further sleeved on the sliding rod 2. One end of the corrugated sealing sleeve 12 is sleeved outside the sliding ring 10, and the other end is fixedly connected in the embedding groove 11 and sealingly connected with the push handle 4. The sliding ring 10 and the end of the corrugated sealing sleeve 12 sleeved on the sliding ring 10 are clamped on the side wall of the switch housing 1. The sliding ring 10 and the corrugated sealing sleeve 12 sleeved on the sliding ring 10 are used for sealingly cooperating with the switch housing 1 to realize the sealing connection between the push rod 100 and the switch housing 1. The sliding ring 10 enables the sliding rod 2 to axially freely slide, and the other end of the corrugated sealing sleeve 12 is clamped in the embedding groove 11 to improve the sealing connection between the corrugated sealing sleeve 12 and the push handle 4.

[0037] As a further improvement of the above technical solution, in the embodiment, a convex ring 13 radially outwardly protruding is arranged on the outer circumferential wall of the sliding ring 10, the end of the corrugated sealing sleeve 12 cooperating with the sliding ring 10 is simultaneously sleeved outside the convex ring 13 to form a clamping portion 14 radially outwardly protruding, and a clamping ring 15 radially inwardly protruding is arranged on the inner wall of the end of the corrugated sealing sleeve 12 cooperating with the embedding groove 11, and the clamping ring 15 is tightly fitted with the embedding groove 11. As shown in Fig. 2 The clamping portion 14 has a stepped shape, and when cooperating with the side wall of the switch housing 1, can form a labyrinth sealing effect to improve the sealing performance.

[0038] In the embodiment, a button 5 is further inserted on the push handle 4, a positioning ring 19 radially outwardly protruding is arranged on the push handle 4, the positioning ring 19 is close to the embedding groove 11 but located outside the corrugated sealing sleeve 12, a connecting blind hole 20 cooperating with the push handle 4 is arranged inside the button 5, a positioning groove 21 cooperating with the positioning ring 19 is arranged on the inner wall of the connecting blind hole 20, the positioning ring 19 is clamped in the positioning groove 21 to realize positioning, a pin hole 22 is further formed on the push handle 4, a via hole 23 opposite to the pin hole 22 is formed on the side wall of the connecting blind hole 20, the push handle 4 is fixedly connected with the button 5 through a positioning pin 24 penetrating through the via hole 23 and inserted in the pin hole 22, and the end of the corrugated sealing sleeve 12 close to the positioning ring 19 is inserted in the connecting blind hole 20 to further avoid dust entering outside the corrugated sealing sleeve 12, further improve the sealing effect of the push rod 100 on the switch after being assembled with the switch housing 1, and effectively improve the dustproof level of the switch. Embodiment 2

[0039] As Figs. 1-6The mounting structure of the high-strength switch push rod in the switch includes a switch housing 1 and the high-strength switch push rod 100 described in Embodiment 1, the switch housing 1 is provided with an assembly hole 16, the assembly hole 16 includes coaxially arranged and sequentially arranged inner fitting holes 16a, middle clamping holes 16b and outer clamping holes 16c, the inner fitting holes 16a are in sliding fit with the slide rod 2, the middle clamping holes 16b and the outer clamping holes 16c are used for clamping the slide ring 10 and the corrugated sealing sleeve 12 sleeved outside the slide ring 10, the inner fitting holes 16a are located at the inner end of the assembly hole 16, the outer clamping holes 16c are located at the outer end of the assembly hole 16, the slide rod 2 of the high-strength switch push rod is inserted into the assembly hole 16, the slide ring 10 and the corrugated sealing sleeve 12 outside the slide ring 10 are clamped in the middle clamping holes 16b and the outer clamping holes 16c, the slide rod 2 outside the slide ring 10 is slidingly inserted into the inner fitting holes 16a, the slide block 3 is located in the switch housing 1 and is in sliding connection with the inner wall of the switch housing 1, and a plurality of limiting convex strips 17 for limiting the sliding direction of the slide block 3 are arranged on the inner walls of the opposite sides of the switch housing 1.

[0040] The inner diameter of the inner fitting hole 16a in the embodiment is smaller than the inner diameter of the outer clamping hole 16c, and the inner diameter of the outer clamping hole 16c is smaller than the inner diameter of the middle clamping hole 16b.

[0041] In the embodiment, the middle clamping holes 16b and the outer clamping holes 16c are arranged on the switch housing 1 and used for clamping one end of the slide ring 10 and the corrugated sealing sleeve 12 on the slide rod 2, the corrugated sealing sleeve 12 has elasticity and can absorb part of the shear force borne by the slide rod 2, thereby further reducing the risk of breakage of the slide rod 2 and further improving the stability and service life of the push rod 100, and meanwhile, the corrugated sealing sleeve 12 also effectively improves the dustproof performance of the switch and improves the quality of the switch.

[0042] The switch housing 1 in the embodiment includes a base 1a and a cover 1b opposite to each other, the assembly hole 16 is arranged at the abutting joint of the base 1a and the cover 1b, half of the assembly hole 16 is arranged on the base 1a and the other half is arranged on the cover 1b, and when the base 1a and the cover 1b are abutted, a complete assembly hole 16 is formed. The switch housing 1 formed by abutting is convenient for assembly of the push rod 100.

[0043] The working principle of the application is that the push rod 100, especially the slide rod 2 part of the push rod 100, has a significantly improved strength by arranging the reinforcing pin 8 in the push rod 100, and the slide rod 2 part is the main part of the push rod 100 subjected to shear force, so that after the reinforcing pin 8 is arranged, the breakage resistance of the push rod 100 is significantly improved, the technical problem that the conventional push rod is easy to be broken is solved, the service life of the push rod 100 and the switch is improved, and the quality of the switch is improved.

[0044] The above embodiments only illustrate the principles and effects of the present application, and some applied embodiments, but are not intended to limit the present application; it should be noted that, for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A high-strength switch push rod (100) characterized by, The utility model relates to a switch, including the slide bar (2) of sliding fit with switch shell (1), the slide block (3) of integral forming in one end of slide bar (2) and the push handle (4) of integral forming in the other end of slide bar (2), push handle (4) is used for connecting switch button (5), the spring hole (6) of being extended along the axial direction of slide bar (2) is set up on slide block (3), spring hole (6) extends to the middle part of slide bar (2) after passing through slide block (3), the positioning hole (7) of coaxial arrangement is set up in spring hole (6) in slide bar (2), a metal reinforcing pin (8) is inserted in positioning hole (7), the inner diameter of positioning hole (7) is less than the inner diameter of spring hole (6), reinforcing pin (8) is tightly matched with positioning hole (7), the coil spring (9) is inserted in spring hole (6), and coil spring (9) is matched with reinforcing pin (8) and spring hole (6) with clearance, and the clearance between coil spring (9) and reinforcing pin (8) is less than the clearance between coil spring (9) and spring hole (6), one end of coil spring (9) is abutted on the inner end step surface in spring hole (6), and the other end is stretched out outside slide block (3) and is used for abutting the inner wall of switch shell (1).

2. The high strength switch pushrod of claim 1, wherein, The length of the reinforcing pin (8) is equal to the sum of the axial lengths of the spring hole (6) and the positioning hole (7), and one end of the reinforcing pin (8) is flush with the outer end of the spring hole (6).

3. The high strength switch pushrod of claim 1, wherein, The positioning hole (7) extends into the push handle (4).

4. The high strength switch pushrod of claim 1, wherein, A wear-resistant layer (18) is arranged on the outer wall of the reinforcing pin (8) in the spring hole (6).

5. The high strength switch pushrod of claim 1, wherein, A knurled or threaded outer circumferential wall is arranged on one end of the reinforcing pin (8) matched with the positioning hole (7).

6. The high strength switch pushrod of claim 1, wherein, A slide ring (10) is sleeved on the slide bar (2), a circumferentially extending annular embedding groove (11) is arranged on one end of the push handle (4) close to the slide bar (2), and a corrugated sealing sleeve (12) is also sleeved on the slide bar (2), one end of the corrugated sealing sleeve (12) is sleeved outside the slide ring (10), the other end is fixedly connected in the embedding groove (11) and is sealingly connected with the push handle (4).

7. The high strength switch pushrod of claim 6, wherein, A radially outwardly protruding convex ring (13) is arranged on the outer circumferential wall of the slide ring (10), one end of the corrugated sealing sleeve (12) matched with the slide ring (10) is also sleeved outside the convex ring (13), forming a radially outwardly protruding clamping portion (14), a radially inwardly protruding clamping ring (15) is arranged on the inner wall of one end of the corrugated sealing sleeve (12) matched with the embedding groove (11), and the clamping ring (15) is tightly matched with the embedding groove (11).

8. The high strength switch pushrod of claim 7, wherein, The push handle (4) is inserted with a button (5), and a radial outwardly protruding positioning ring (19) is arranged on the push handle (4) and is close to the embedding groove (11) but located outside the corrugated sealing sleeve (12). The button (5) is internally provided with a connecting blind hole (20) matched with the push handle (4), and a positioning groove (21) matched with the positioning ring (19) is arranged on the inner wall of the connecting blind hole (20). The positioning ring (19) is clamped in the positioning groove (21) to realize positioning. A pin hole (22) is further formed on the push handle (4), a through hole (23) opposite to the pin hole (22) is formed on the side wall of the connecting blind hole (20), and the push handle (4) is fixedly connected with the button (5) through a positioning pin (24) inserted into the pin hole (22) through the through hole (23). The corrugated sealing sleeve (12) is inserted into the connecting blind hole (20) at one end close to the positioning ring (19).

9. A mounting structure of a high-strength switch push rod in a switch, characterized by The high-strength switch push rod comprises a switch housing (1) and the high-strength switch push rod of claim 5. An assembly hole (16) is formed in the switch housing (1), and the assembly hole (16) comprises an inner matching hole (16a), a middle clamping hole (16b) and an outer clamping hole (16c) arranged coaxially and sequentially. The inner matching hole (16a) is in sliding fit with the sliding rod (2), and the middle clamping hole (16b) and the outer clamping hole (16c) are used for clamping the sliding ring (10) and the corrugated sealing sleeve (12) sleeved outside the sliding ring (10). The inner matching hole (16a) is located at the inner end of the assembly hole (16), and the outer clamping hole (16c) is located at the outer end of the assembly hole (16). The sliding rod (2) of the high-strength switch push rod is inserted into the assembly hole (16), the sliding ring (10) and the corrugated sealing sleeve (12) outside the sliding ring (10) are clamped in the middle clamping hole (16b) and the outer clamping hole (16c), the sliding rod (2) outside the sliding ring (10) is slidingly inserted into the inner matching hole (16a), and the sliding block (3) is located in the switch housing (1) and is in sliding connection with the inner wall of the switch housing (1). A plurality of limiting convex strips (17) for limiting the sliding direction of the sliding block (3) are arranged on the inner walls of the opposite sides of the switch housing (1).

10. The mounting structure of the high-strength switch push rod in a switch according to claim 9, wherein The switch housing (1) comprises a base (1a) and a cover (1b) opposite to each other. The assembly hole (16) is formed at the abutting joint of the base (1a) and the cover (1b). The assembly hole (16) is formed on the base (1a) and the cover (1b) in half. When the base (1a) and the cover (1b) are closed, the complete assembly hole (16) is formed.

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